diff options
Diffstat (limited to 'git-svn.perl')
| -rwxr-xr-x | git-svn.perl | 6787 |
1 files changed, 6787 insertions, 0 deletions
diff --git a/git-svn.perl b/git-svn.perl new file mode 100755 index 0000000000..eeb83d3759 --- /dev/null +++ b/git-svn.perl @@ -0,0 +1,6787 @@ +#!/usr/bin/env perl +# Copyright (C) 2006, Eric Wong <normalperson@yhbt.net> +# License: GPL v2 or later +use 5.008; +use warnings; +use strict; +use vars qw/ $AUTHOR $VERSION + $sha1 $sha1_short $_revision $_repository + $_q $_authors $_authors_prog %users/; +$AUTHOR = 'Eric Wong <normalperson@yhbt.net>'; +$VERSION = '@@GIT_VERSION@@'; + +# From which subdir have we been invoked? +my $cmd_dir_prefix = eval { + command_oneline([qw/rev-parse --show-prefix/], STDERR => 0) +} || ''; + +my $git_dir_user_set = 1 if defined $ENV{GIT_DIR}; +$ENV{GIT_DIR} ||= '.git'; +$Git::SVN::default_repo_id = 'svn'; +$Git::SVN::default_ref_id = $ENV{GIT_SVN_ID} || 'git-svn'; +$Git::SVN::Ra::_log_window_size = 100; +$Git::SVN::_minimize_url = 'unset'; + +if (! exists $ENV{SVN_SSH} && exists $ENV{GIT_SSH}) { + $ENV{SVN_SSH} = $ENV{GIT_SSH}; +} + +if (exists $ENV{SVN_SSH} && $^O eq 'msys') { + $ENV{SVN_SSH} =~ s/\\/\\\\/g; + $ENV{SVN_SSH} =~ s/(.*)/"$1"/; +} + +$Git::SVN::Log::TZ = $ENV{TZ}; +$ENV{TZ} = 'UTC'; +$| = 1; # unbuffer STDOUT + +sub fatal (@) { print STDERR "@_\n"; exit 1 } +sub _req_svn { + require SVN::Core; # use()-ing this causes segfaults for me... *shrug* + require SVN::Ra; + require SVN::Delta; + if ($SVN::Core::VERSION lt '1.1.0') { + fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)"; + } +} +my $can_compress = eval { require Compress::Zlib; 1}; +push @Git::SVN::Ra::ISA, 'SVN::Ra'; +push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor'; +push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor'; +use Carp qw/croak/; +use Digest::MD5; +use IO::File qw//; +use File::Basename qw/dirname basename/; +use File::Path qw/mkpath/; +use File::Spec; +use File::Find; +use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/; +use IPC::Open3; +use Git; +use Memoize; # core since 5.8.0, Jul 2002 + +BEGIN { + # import functions from Git into our packages, en masse + no strict 'refs'; + foreach (qw/command command_oneline command_noisy command_output_pipe + command_input_pipe command_close_pipe + command_bidi_pipe command_close_bidi_pipe/) { + for my $package ( qw(SVN::Git::Editor SVN::Git::Fetcher + Git::SVN::Migration Git::SVN::Log Git::SVN), + __PACKAGE__) { + *{"${package}::$_"} = \&{"Git::$_"}; + } + } + Memoize::memoize 'Git::config'; + Memoize::memoize 'Git::config_bool'; +} + +my ($SVN); + +$sha1 = qr/[a-f\d]{40}/; +$sha1_short = qr/[a-f\d]{4,40}/; +my ($_stdin, $_help, $_edit, + $_message, $_file, $_branch_dest, + $_template, $_shared, + $_version, $_fetch_all, $_no_rebase, $_fetch_parent, + $_merge, $_strategy, $_dry_run, $_local, + $_prefix, $_no_checkout, $_url, $_verbose, + $_git_format, $_commit_url, $_tag, $_merge_info, $_interactive); +$Git::SVN::_follow_parent = 1; +$SVN::Git::Fetcher::_placeholder_filename = ".gitignore"; +$_q ||= 0; +my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username, + 'config-dir=s' => \$Git::SVN::Ra::config_dir, + 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache, + 'ignore-paths=s' => \$SVN::Git::Fetcher::_ignore_regex, + 'ignore-refs=s' => \$Git::SVN::Ra::_ignore_refs_regex ); +my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent, + 'authors-file|A=s' => \$_authors, + 'authors-prog=s' => \$_authors_prog, + 'repack:i' => \$Git::SVN::_repack, + 'noMetadata' => \$Git::SVN::_no_metadata, + 'useSvmProps' => \$Git::SVN::_use_svm_props, + 'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props, + 'log-window-size=i' => \$Git::SVN::Ra::_log_window_size, + 'no-checkout' => \$_no_checkout, + 'quiet|q+' => \$_q, + 'repack-flags|repack-args|repack-opts=s' => + \$Git::SVN::_repack_flags, + 'use-log-author' => \$Git::SVN::_use_log_author, + 'add-author-from' => \$Git::SVN::_add_author_from, + 'localtime' => \$Git::SVN::_localtime, + %remote_opts ); + +my ($_trunk, @_tags, @_branches, $_stdlayout); +my %icv; +my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared, + 'trunk|T=s' => \$_trunk, 'tags|t=s@' => \@_tags, + 'branches|b=s@' => \@_branches, 'prefix=s' => \$_prefix, + 'stdlayout|s' => \$_stdlayout, + 'minimize-url|m!' => \$Git::SVN::_minimize_url, + 'no-metadata' => sub { $icv{noMetadata} = 1 }, + 'use-svm-props' => sub { $icv{useSvmProps} = 1 }, + 'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 }, + 'rewrite-root=s' => sub { $icv{rewriteRoot} = $_[1] }, + 'rewrite-uuid=s' => sub { $icv{rewriteUUID} = $_[1] }, + %remote_opts ); +my %cmt_opts = ( 'edit|e' => \$_edit, + 'rmdir' => \$SVN::Git::Editor::_rmdir, + 'find-copies-harder' => \$SVN::Git::Editor::_find_copies_harder, + 'l=i' => \$SVN::Git::Editor::_rename_limit, + 'copy-similarity|C=i'=> \$SVN::Git::Editor::_cp_similarity +); + +my %cmd = ( + fetch => [ \&cmd_fetch, "Download new revisions from SVN", + { 'revision|r=s' => \$_revision, + 'fetch-all|all' => \$_fetch_all, + 'parent|p' => \$_fetch_parent, + %fc_opts } ], + clone => [ \&cmd_clone, "Initialize and fetch revisions", + { 'revision|r=s' => \$_revision, + 'preserve-empty-dirs' => + \$SVN::Git::Fetcher::_preserve_empty_dirs, + 'placeholder-filename=s' => + \$SVN::Git::Fetcher::_placeholder_filename, + %fc_opts, %init_opts } ], + init => [ \&cmd_init, "Initialize a repo for tracking" . + " (requires URL argument)", + \%init_opts ], + 'multi-init' => [ \&cmd_multi_init, + "Deprecated alias for ". + "'$0 init -T<trunk> -b<branches> -t<tags>'", + \%init_opts ], + dcommit => [ \&cmd_dcommit, + 'Commit several diffs to merge with upstream', + { 'merge|m|M' => \$_merge, + 'strategy|s=s' => \$_strategy, + 'verbose|v' => \$_verbose, + 'dry-run|n' => \$_dry_run, + 'fetch-all|all' => \$_fetch_all, + 'commit-url=s' => \$_commit_url, + 'revision|r=i' => \$_revision, + 'no-rebase' => \$_no_rebase, + 'mergeinfo=s' => \$_merge_info, + 'interactive|i' => \$_interactive, + %cmt_opts, %fc_opts } ], + branch => [ \&cmd_branch, + 'Create a branch in the SVN repository', + { 'message|m=s' => \$_message, + 'destination|d=s' => \$_branch_dest, + 'dry-run|n' => \$_dry_run, + 'tag|t' => \$_tag, + 'username=s' => \$Git::SVN::Prompt::_username, + 'commit-url=s' => \$_commit_url } ], + tag => [ sub { $_tag = 1; cmd_branch(@_) }, + 'Create a tag in the SVN repository', + { 'message|m=s' => \$_message, + 'destination|d=s' => \$_branch_dest, + 'dry-run|n' => \$_dry_run, + 'username=s' => \$Git::SVN::Prompt::_username, + 'commit-url=s' => \$_commit_url } ], + 'set-tree' => [ \&cmd_set_tree, + "Set an SVN repository to a git tree-ish", + { 'stdin' => \$_stdin, %cmt_opts, %fc_opts, } ], + 'create-ignore' => [ \&cmd_create_ignore, + 'Create a .gitignore per svn:ignore', + { 'revision|r=i' => \$_revision + } ], + 'mkdirs' => [ \&cmd_mkdirs , + "recreate empty directories after a checkout", + { 'revision|r=i' => \$_revision } ], + 'propget' => [ \&cmd_propget, + 'Print the value of a property on a file or directory', + { 'revision|r=i' => \$_revision } ], + 'proplist' => [ \&cmd_proplist, + 'List all properties of a file or directory', + { 'revision|r=i' => \$_revision } ], + 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings", + { 'revision|r=i' => \$_revision + } ], + 'show-externals' => [ \&cmd_show_externals, "Show svn:externals listings", + { 'revision|r=i' => \$_revision + } ], + 'multi-fetch' => [ \&cmd_multi_fetch, + "Deprecated alias for $0 fetch --all", + { 'revision|r=s' => \$_revision, %fc_opts } ], + 'migrate' => [ sub { }, + # no-op, we automatically run this anyways, + 'Migrate configuration/metadata/layout from + previous versions of git-svn', + { 'minimize' => \$Git::SVN::Migration::_minimize, + %remote_opts } ], + 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs', + { 'limit=i' => \$Git::SVN::Log::limit, + 'revision|r=s' => \$_revision, + 'verbose|v' => \$Git::SVN::Log::verbose, + 'incremental' => \$Git::SVN::Log::incremental, + 'oneline' => \$Git::SVN::Log::oneline, + 'show-commit' => \$Git::SVN::Log::show_commit, + 'non-recursive' => \$Git::SVN::Log::non_recursive, + 'authors-file|A=s' => \$_authors, + 'color' => \$Git::SVN::Log::color, + 'pager=s' => \$Git::SVN::Log::pager + } ], + 'find-rev' => [ \&cmd_find_rev, + "Translate between SVN revision numbers and tree-ish", + {} ], + 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory", + { 'merge|m|M' => \$_merge, + 'verbose|v' => \$_verbose, + 'strategy|s=s' => \$_strategy, + 'local|l' => \$_local, + 'fetch-all|all' => \$_fetch_all, + 'dry-run|n' => \$_dry_run, + %fc_opts } ], + 'commit-diff' => [ \&cmd_commit_diff, + 'Commit a diff between two trees', + { 'message|m=s' => \$_message, + 'file|F=s' => \$_file, + 'revision|r=s' => \$_revision, + %cmt_opts } ], + 'info' => [ \&cmd_info, + "Show info about the latest SVN revision + on the current branch", + { 'url' => \$_url, } ], + 'blame' => [ \&Git::SVN::Log::cmd_blame, + "Show what revision and author last modified each line of a file", + { 'git-format' => \$_git_format } ], + 'reset' => [ \&cmd_reset, + "Undo fetches back to the specified SVN revision", + { 'revision|r=s' => \$_revision, + 'parent|p' => \$_fetch_parent } ], + 'gc' => [ \&cmd_gc, + "Compress unhandled.log files in .git/svn and remove " . + "index files in .git/svn", + {} ], +); + +use Term::ReadLine; +package FakeTerm; +sub new { + my ($class, $reason) = @_; + return bless \$reason, shift; +} +sub readline { + my $self = shift; + die "Cannot use readline on FakeTerm: $$self"; +} +package main; + +my $term = eval { + $ENV{"GIT_SVN_NOTTY"} + ? new Term::ReadLine 'git-svn', \*STDIN, \*STDOUT + : new Term::ReadLine 'git-svn'; +}; +if ($@) { + $term = new FakeTerm "$@: going non-interactive"; +} + +my $cmd; +for (my $i = 0; $i < @ARGV; $i++) { + if (defined $cmd{$ARGV[$i]}) { + $cmd = $ARGV[$i]; + splice @ARGV, $i, 1; + last; + } elsif ($ARGV[$i] eq 'help') { + $cmd = $ARGV[$i+1]; + usage(0); + } +}; + +# make sure we're always running at the top-level working directory +unless ($cmd && $cmd =~ /(?:clone|init|multi-init)$/) { + unless (-d $ENV{GIT_DIR}) { + if ($git_dir_user_set) { + die "GIT_DIR=$ENV{GIT_DIR} explicitly set, ", + "but it is not a directory\n"; + } + my $git_dir = delete $ENV{GIT_DIR}; + my $cdup = undef; + git_cmd_try { + $cdup = command_oneline(qw/rev-parse --show-cdup/); + $git_dir = '.' unless ($cdup); + chomp $cdup if ($cdup); + $cdup = "." unless ($cdup && length $cdup); + } "Already at toplevel, but $git_dir not found\n"; + chdir $cdup or die "Unable to chdir up to '$cdup'\n"; + unless (-d $git_dir) { + die "$git_dir still not found after going to ", + "'$cdup'\n"; + } + $ENV{GIT_DIR} = $git_dir; + } + $_repository = Git->repository(Repository => $ENV{GIT_DIR}); +} + +my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd); + +read_git_config(\%opts); +if ($cmd && ($cmd eq 'log' || $cmd eq 'blame')) { + Getopt::Long::Configure('pass_through'); +} +my $rv = GetOptions(%opts, 'h|H' => \$_help, 'version|V' => \$_version, + 'minimize-connections' => \$Git::SVN::Migration::_minimize, + 'id|i=s' => \$Git::SVN::default_ref_id, + 'svn-remote|remote|R=s' => sub { + $Git::SVN::no_reuse_existing = 1; + $Git::SVN::default_repo_id = $_[1] }); +exit 1 if (!$rv && $cmd && $cmd ne 'log'); + +usage(0) if $_help; +version() if $_version; +usage(1) unless defined $cmd; +load_authors() if $_authors; +if (defined $_authors_prog) { + $_authors_prog = "'" . File::Spec->rel2abs($_authors_prog) . "'"; +} + +unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) { + Git::SVN::Migration::migration_check(); +} +Git::SVN::init_vars(); +eval { + Git::SVN::verify_remotes_sanity(); + $cmd{$cmd}->[0]->(@ARGV); +}; +fatal $@ if $@; +post_fetch_checkout(); +exit 0; + +####################### primary functions ###################### +sub usage { + my $exit = shift || 0; + my $fd = $exit ? \*STDERR : \*STDOUT; + print $fd <<""; +git-svn - bidirectional operations between a single Subversion tree and git +Usage: git svn <command> [options] [arguments]\n + + print $fd "Available commands:\n" unless $cmd; + + foreach (sort keys %cmd) { + next if $cmd && $cmd ne $_; + next if /^multi-/; # don't show deprecated commands + print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n"; + foreach (sort keys %{$cmd{$_}->[2]}) { + # mixed-case options are for .git/config only + next if /[A-Z]/ && /^[a-z]+$/i; + # prints out arguments as they should be passed: + my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : ''; + print $fd ' ' x 21, join(', ', map { length $_ > 1 ? + "--$_" : "-$_" } + split /\|/,$_)," $x\n"; + } + } + print $fd <<""; +\nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an +arbitrary identifier if you're tracking multiple SVN branches/repositories in +one git repository and want to keep them separate. See git-svn(1) for more +information. + + exit $exit; +} + +sub version { + ::_req_svn(); + print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n"; + exit 0; +} + +sub ask { + my ($prompt, %arg) = @_; + my $valid_re = $arg{valid_re}; + my $default = $arg{default}; + my $resp; + my $i = 0; + + if ( !( defined($term->IN) + && defined( fileno($term->IN) ) + && defined( $term->OUT ) + && defined( fileno($term->OUT) ) ) ){ + return defined($default) ? $default : undef; + } + + while ($i++ < 10) { + $resp = $term->readline($prompt); + if (!defined $resp) { # EOF + print "\n"; + return defined $default ? $default : undef; + } + if ($resp eq '' and defined $default) { + return $default; + } + if (!defined $valid_re or $resp =~ /$valid_re/) { + return $resp; + } + } + return undef; +} + +sub do_git_init_db { + unless (-d $ENV{GIT_DIR}) { + my @init_db = ('init'); + push @init_db, "--template=$_template" if defined $_template; + if (defined $_shared) { + if ($_shared =~ /[a-z]/) { + push @init_db, "--shared=$_shared"; + } else { + push @init_db, "--shared"; + } + } + command_noisy(@init_db); + $_repository = Git->repository(Repository => ".git"); + } + my $set; + my $pfx = "svn-remote.$Git::SVN::default_repo_id"; + foreach my $i (keys %icv) { + die "'$set' and '$i' cannot both be set\n" if $set; + next unless defined $icv{$i}; + command_noisy('config', "$pfx.$i", $icv{$i}); + $set = $i; + } + my $ignore_paths_regex = \$SVN::Git::Fetcher::_ignore_regex; + command_noisy('config', "$pfx.ignore-paths", $$ignore_paths_regex) + if defined $$ignore_paths_regex; + my $ignore_refs_regex = \$Git::SVN::Ra::_ignore_refs_regex; + command_noisy('config', "$pfx.ignore-refs", $$ignore_refs_regex) + if defined $$ignore_refs_regex; + + if (defined $SVN::Git::Fetcher::_preserve_empty_dirs) { + my $fname = \$SVN::Git::Fetcher::_placeholder_filename; + command_noisy('config', "$pfx.preserve-empty-dirs", 'true'); + command_noisy('config', "$pfx.placeholder-filename", $$fname); + } +} + +sub init_subdir { + my $repo_path = shift or return; + mkpath([$repo_path]) unless -d $repo_path; + chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n"; + $ENV{GIT_DIR} = '.git'; + $_repository = Git->repository(Repository => $ENV{GIT_DIR}); +} + +sub cmd_clone { + my ($url, $path) = @_; + if (!defined $path && + (defined $_trunk || @_branches || @_tags || + defined $_stdlayout) && + $url !~ m#^[a-z\+]+://#) { + $path = $url; + } + $path = basename($url) if !defined $path || !length $path; + my $authors_absolute = $_authors ? File::Spec->rel2abs($_authors) : ""; + cmd_init($url, $path); + command_oneline('config', 'svn.authorsfile', $authors_absolute) + if $_authors; + Git::SVN::fetch_all($Git::SVN::default_repo_id); +} + +sub cmd_init { + if (defined $_stdlayout) { + $_trunk = 'trunk' if (!defined $_trunk); + @_tags = 'tags' if (! @_tags); + @_branches = 'branches' if (! @_branches); + } + if (defined $_trunk || @_branches || @_tags) { + return cmd_multi_init(@_); + } + my $url = shift or die "SVN repository location required ", + "as a command-line argument\n"; + $url = canonicalize_url($url); + init_subdir(@_); + do_git_init_db(); + + if ($Git::SVN::_minimize_url eq 'unset') { + $Git::SVN::_minimize_url = 0; + } + + Git::SVN->init($url); +} + +sub cmd_fetch { + if (grep /^\d+=./, @_) { + die "'<rev>=<commit>' fetch arguments are ", + "no longer supported.\n"; + } + my ($remote) = @_; + if (@_ > 1) { + die "Usage: $0 fetch [--all] [--parent] [svn-remote]\n"; + } + $Git::SVN::no_reuse_existing = undef; + if ($_fetch_parent) { + my ($url, $rev, $uuid, $gs) = working_head_info('HEAD'); + unless ($gs) { + die "Unable to determine upstream SVN information from ", + "working tree history\n"; + } + # just fetch, don't checkout. + $_no_checkout = 'true'; + $_fetch_all ? $gs->fetch_all : $gs->fetch; + } elsif ($_fetch_all) { + cmd_multi_fetch(); + } else { + $remote ||= $Git::SVN::default_repo_id; + Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes()); + } +} + +sub cmd_set_tree { + my (@commits) = @_; + if ($_stdin || !@commits) { + print "Reading from stdin...\n"; + @commits = (); + while (<STDIN>) { + if (/\b($sha1_short)\b/o) { + unshift @commits, $1; + } + } + } + my @revs; + foreach my $c (@commits) { + my @tmp = command('rev-parse',$c); + if (scalar @tmp == 1) { + push @revs, $tmp[0]; + } elsif (scalar @tmp > 1) { + push @revs, reverse(command('rev-list',@tmp)); + } else { + fatal "Failed to rev-parse $c"; + } + } + my $gs = Git::SVN->new; + my ($r_last, $cmt_last) = $gs->last_rev_commit; + $gs->fetch; + if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) { + fatal "There are new revisions that were fetched ", + "and need to be merged (or acknowledged) ", + "before committing.\nlast rev: $r_last\n", + " current: $gs->{last_rev}"; + } + $gs->set_tree($_) foreach @revs; + print "Done committing ",scalar @revs," revisions to SVN\n"; + unlink $gs->{index}; +} + +sub split_merge_info_range { + my ($range) = @_; + if ($range =~ /(\d+)-(\d+)/) { + return (int($1), int($2)); + } else { + return (int($range), int($range)); + } +} + +sub combine_ranges { + my ($in) = @_; + + my @fnums = (); + my @arr = split(/,/, $in); + for my $element (@arr) { + my ($start, $end) = split_merge_info_range($element); + push @fnums, $start; + } + + my @sorted = @arr [ sort { + $fnums[$a] <=> $fnums[$b] + } 0..$#arr ]; + + my @return = (); + my $last = -1; + my $first = -1; + for my $element (@sorted) { + my ($start, $end) = split_merge_info_range($element); + + if ($last == -1) { + $first = $start; + $last = $end; + next; + } + if ($start <= $last+1) { + if ($end > $last) { + $last = $end; + } + next; + } + if ($first == $last) { + push @return, "$first"; + } else { + push @return, "$first-$last"; + } + $first = $start; + $last = $end; + } + + if ($first != -1) { + if ($first == $last) { + push @return, "$first"; + } else { + push @return, "$first-$last"; + } + } + + return join(',', @return); +} + +sub merge_revs_into_hash { + my ($hash, $minfo) = @_; + my @lines = split(' ', $minfo); + + for my $line (@lines) { + my ($branchpath, $revs) = split(/:/, $line); + + if (exists($hash->{$branchpath})) { + # Merge the two revision sets + my $combined = "$hash->{$branchpath},$revs"; + $hash->{$branchpath} = combine_ranges($combined); + } else { + # Just do range combining for consolidation + $hash->{$branchpath} = combine_ranges($revs); + } + } +} + +sub merge_merge_info { + my ($mergeinfo_one, $mergeinfo_two) = @_; + my %result_hash = (); + + merge_revs_into_hash(\%result_hash, $mergeinfo_one); + merge_revs_into_hash(\%result_hash, $mergeinfo_two); + + my $result = ''; + # Sort below is for consistency's sake + for my $branchname (sort keys(%result_hash)) { + my $revlist = $result_hash{$branchname}; + $result .= "$branchname:$revlist\n" + } + return $result; +} + +sub populate_merge_info { + my ($d, $gs, $uuid, $linear_refs, $rewritten_parent) = @_; + + my %parentshash; + read_commit_parents(\%parentshash, $d); + my @parents = @{$parentshash{$d}}; + if ($#parents > 0) { + # Merge commit + my $all_parents_ok = 1; + my $aggregate_mergeinfo = ''; + my $rooturl = $gs->repos_root; + + if (defined($rewritten_parent)) { + # Replace first parent with newly-rewritten version + shift @parents; + unshift @parents, $rewritten_parent; + } + + foreach my $parent (@parents) { + my ($branchurl, $svnrev, $paruuid) = + cmt_metadata($parent); + + unless (defined($svnrev)) { + # Should have been caught be preflight check + fatal "merge commit $d has ancestor $parent, but that change " + ."does not have git-svn metadata!"; + } + unless ($branchurl =~ /^\Q$rooturl\E(.*)/) { + fatal "commit $parent git-svn metadata changed mid-run!"; + } + my $branchpath = $1; + + my $ra = Git::SVN::Ra->new($branchurl); + my (undef, undef, $props) = + $ra->get_dir(canonicalize_path("."), $svnrev); + my $par_mergeinfo = $props->{'svn:mergeinfo'}; + unless (defined $par_mergeinfo) { + $par_mergeinfo = ''; + } + # Merge previous mergeinfo values + $aggregate_mergeinfo = + merge_merge_info($aggregate_mergeinfo, + $par_mergeinfo, 0); + + next if $parent eq $parents[0]; # Skip first parent + # Add new changes being placed in tree by merge + my @cmd = (qw/rev-list --reverse/, + $parent, qw/--not/); + foreach my $par (@parents) { + unless ($par eq $parent) { + push @cmd, $par; + } + } + my @revsin = (); + my ($revlist, $ctx) = command_output_pipe(@cmd); + while (<$revlist>) { + my $irev = $_; + chomp $irev; + my (undef, $csvnrev, undef) = + cmt_metadata($irev); + unless (defined $csvnrev) { + # A child is missing SVN annotations... + # this might be OK, or might not be. + warn "W:child $irev is merged into revision " + ."$d but does not have git-svn metadata. " + ."This means git-svn cannot determine the " + ."svn revision numbers to place into the " + ."svn:mergeinfo property. You must ensure " + ."a branch is entirely committed to " + ."SVN before merging it in order for " + ."svn:mergeinfo population to function " + ."properly"; + } + push @revsin, $csvnrev; + } + command_close_pipe($revlist, $ctx); + + last unless $all_parents_ok; + + # We now have a list of all SVN revnos which are + # merged by this particular parent. Integrate them. + next if $#revsin == -1; + my $newmergeinfo = "$branchpath:" . join(',', @revsin); + $aggregate_mergeinfo = + merge_merge_info($aggregate_mergeinfo, + $newmergeinfo, 1); + } + if ($all_parents_ok and $aggregate_mergeinfo) { + return $aggregate_mergeinfo; + } + } + + return undef; +} + +sub cmd_dcommit { + my $head = shift; + command_noisy(qw/update-index --refresh/); + git_cmd_try { command_oneline(qw/diff-index --quiet HEAD/) } + 'Cannot dcommit with a dirty index. Commit your changes first, ' + . "or stash them with `git stash'.\n"; + $head ||= 'HEAD'; + + my $old_head; + if ($head ne 'HEAD') { + $old_head = eval { + command_oneline([qw/symbolic-ref -q HEAD/]) + }; + if ($old_head) { + $old_head =~ s{^refs/heads/}{}; + } else { + $old_head = eval { command_oneline(qw/rev-parse HEAD/) }; + } + command(['checkout', $head], STDERR => 0); + } + + my @refs; + my ($url, $rev, $uuid, $gs) = working_head_info('HEAD', \@refs); + unless ($gs) { + die "Unable to determine upstream SVN information from ", + "$head history.\nPerhaps the repository is empty."; + } + + if (defined $_commit_url) { + $url = $_commit_url; + } else { + $url = eval { command_oneline('config', '--get', + "svn-remote.$gs->{repo_id}.commiturl") }; + if (!$url) { + $url = $gs->full_pushurl + } + } + + my $last_rev = $_revision if defined $_revision; + if ($url) { + print "Committing to $url ...\n"; + } + my ($linear_refs, $parents) = linearize_history($gs, \@refs); + if ($_no_rebase && scalar(@$linear_refs) > 1) { + warn "Attempting to commit more than one change while ", + "--no-rebase is enabled.\n", + "If these changes depend on each other, re-running ", + "without --no-rebase may be required." + } + + if (defined $_interactive){ + my $ask_default = "y"; + foreach my $d (@$linear_refs){ + my ($fh, $ctx) = command_output_pipe(qw(show --summary), "$d"); + while (<$fh>){ + print $_; + } + command_close_pipe($fh, $ctx); + $_ = ask("Commit this patch to SVN? ([y]es (default)|[n]o|[q]uit|[a]ll): ", + valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i, + default => $ask_default); + die "Commit this patch reply required" unless defined $_; + if (/^[nq]/i) { + exit(0); + } elsif (/^a/i) { + last; + } + } + } + + my $expect_url = $url; + + my $push_merge_info = eval { + command_oneline(qw/config --get svn.pushmergeinfo/) + }; + if (not defined($push_merge_info) + or $push_merge_info eq "false" + or $push_merge_info eq "no" + or $push_merge_info eq "never") { + $push_merge_info = 0; + } + + unless (defined($_merge_info) || ! $push_merge_info) { + # Preflight check of changes to ensure no issues with mergeinfo + # This includes check for uncommitted-to-SVN parents + # (other than the first parent, which we will handle), + # information from different SVN repos, and paths + # which are not underneath this repository root. + my $rooturl = $gs->repos_root; + foreach my $d (@$linear_refs) { + my %parentshash; + read_commit_parents(\%parentshash, $d); + my @realparents = @{$parentshash{$d}}; + if ($#realparents > 0) { + # Merge commit + shift @realparents; # Remove/ignore first parent + foreach my $parent (@realparents) { + my ($branchurl, $svnrev, $paruuid) = cmt_metadata($parent); + unless (defined $paruuid) { + # A parent is missing SVN annotations... + # abort the whole operation. + fatal "$parent is merged into revision $d, " + ."but does not have git-svn metadata. " + ."Either dcommit the branch or use a " + ."local cherry-pick, FF merge, or rebase " + ."instead of an explicit merge commit."; + } + + unless ($paruuid eq $uuid) { + # Parent has SVN metadata from different repository + fatal "merge parent $parent for change $d has " + ."git-svn uuid $paruuid, while current change " + ."has uuid $uuid!"; + } + + unless ($branchurl =~ /^\Q$rooturl\E(.*)/) { + # This branch is very strange indeed. + fatal "merge parent $parent for $d is on branch " + ."$branchurl, which is not under the " + ."git-svn root $rooturl!"; + } + } + } + } + } + + my $rewritten_parent; + Git::SVN::remove_username($expect_url); + if (defined($_merge_info)) { + $_merge_info =~ tr{ }{\n}; + } + while (1) { + my $d = shift @$linear_refs or last; + unless (defined $last_rev) { + (undef, $last_rev, undef) = cmt_metadata("$d~1"); + unless (defined $last_rev) { + fatal "Unable to extract revision information ", + "from commit $d~1"; + } + } + if ($_dry_run) { + print "diff-tree $d~1 $d\n"; + } else { + my $cmt_rev; + + unless (defined($_merge_info) || ! $push_merge_info) { + $_merge_info = populate_merge_info($d, $gs, + $uuid, + $linear_refs, + $rewritten_parent); + } + + my %ed_opts = ( r => $last_rev, + log => get_commit_entry($d)->{log}, + ra => Git::SVN::Ra->new($url), + config => SVN::Core::config_get_config( + $Git::SVN::Ra::config_dir + ), + tree_a => "$d~1", + tree_b => $d, + editor_cb => sub { + print "Committed r$_[0]\n"; + $cmt_rev = $_[0]; + }, + mergeinfo => $_merge_info, + svn_path => ''); + if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) { + print "No changes\n$d~1 == $d\n"; + } elsif ($parents->{$d} && @{$parents->{$d}}) { + $gs->{inject_parents_dcommit}->{$cmt_rev} = + $parents->{$d}; + } + $_fetch_all ? $gs->fetch_all : $gs->fetch; + $last_rev = $cmt_rev; + next if $_no_rebase; + + # we always want to rebase against the current HEAD, + # not any head that was passed to us + my @diff = command('diff-tree', $d, + $gs->refname, '--'); + my @finish; + if (@diff) { + @finish = rebase_cmd(); + print STDERR "W: $d and ", $gs->refname, + " differ, using @finish:\n", + join("\n", @diff), "\n"; + } else { + print "No changes between current HEAD and ", + $gs->refname, + "\nResetting to the latest ", + $gs->refname, "\n"; + @finish = qw/reset --mixed/; + } + command_noisy(@finish, $gs->refname); + + $rewritten_parent = command_oneline(qw/rev-parse HEAD/); + + if (@diff) { + @refs = (); + my ($url_, $rev_, $uuid_, $gs_) = + working_head_info('HEAD', \@refs); + my ($linear_refs_, $parents_) = + linearize_history($gs_, \@refs); + if (scalar(@$linear_refs) != + scalar(@$linear_refs_)) { + fatal "# of revisions changed ", + "\nbefore:\n", + join("\n", @$linear_refs), + "\n\nafter:\n", + join("\n", @$linear_refs_), "\n", + 'If you are attempting to commit ', + "merges, try running:\n\t", + 'git rebase --interactive', + '--preserve-merges ', + $gs->refname, + "\nBefore dcommitting"; + } + if ($url_ ne $expect_url) { + if ($url_ eq $gs->metadata_url) { + print + "Accepting rewritten URL:", + " $url_\n"; + } else { + fatal + "URL mismatch after rebase:", + " $url_ != $expect_url"; + } + } + if ($uuid_ ne $uuid) { + fatal "uuid mismatch after rebase: ", + "$uuid_ != $uuid"; + } + # remap parents + my (%p, @l, $i); + for ($i = 0; $i < scalar @$linear_refs; $i++) { + my $new = $linear_refs_->[$i] or next; + $p{$new} = + $parents->{$linear_refs->[$i]}; + push @l, $new; + } + $parents = \%p; + $linear_refs = \@l; + } + } + } + + if ($old_head) { + my $new_head = command_oneline(qw/rev-parse HEAD/); + my $new_is_symbolic = eval { + command_oneline(qw/symbolic-ref -q HEAD/); + }; + if ($new_is_symbolic) { + print "dcommitted the branch ", $head, "\n"; + } else { + print "dcommitted on a detached HEAD because you gave ", + "a revision argument.\n", + "The rewritten commit is: ", $new_head, "\n"; + } + command(['checkout', $old_head], STDERR => 0); + } + + unlink $gs->{index}; +} + +sub cmd_branch { + my ($branch_name, $head) = @_; + + unless (defined $branch_name && length $branch_name) { + die(($_tag ? "tag" : "branch") . " name required\n"); + } + $head ||= 'HEAD'; + + my (undef, $rev, undef, $gs) = working_head_info($head); + my $src = $gs->full_pushurl; + + my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}}; + my $allglobs = $remote->{ $_tag ? 'tags' : 'branches' }; + my $glob; + if ($#{$allglobs} == 0) { + $glob = $allglobs->[0]; + } else { + unless(defined $_branch_dest) { + die "Multiple ", + $_tag ? "tag" : "branch", + " paths defined for Subversion repository.\n", + "You must specify where you want to create the ", + $_tag ? "tag" : "branch", + " with the --destination argument.\n"; + } + foreach my $g (@{$allglobs}) { + # SVN::Git::Editor could probably be moved to Git.pm.. + my $re = SVN::Git::Editor::glob2pat($g->{path}->{left}); + if ($_branch_dest =~ /$re/) { + $glob = $g; + last; + } + } + unless (defined $glob) { + my $dest_re = qr/\b\Q$_branch_dest\E\b/; + foreach my $g (@{$allglobs}) { + $g->{path}->{left} =~ /$dest_re/ or next; + if (defined $glob) { + die "Ambiguous destination: ", + $_branch_dest, "\nmatches both '", + $glob->{path}->{left}, "' and '", + $g->{path}->{left}, "'\n"; + } + $glob = $g; + } + unless (defined $glob) { + die "Unknown ", + $_tag ? "tag" : "branch", + " destination $_branch_dest\n"; + } + } + } + my ($lft, $rgt) = @{ $glob->{path} }{qw/left right/}; + my $url; + if (defined $_commit_url) { + $url = $_commit_url; + } else { + $url = eval { command_oneline('config', '--get', + "svn-remote.$gs->{repo_id}.commiturl") }; + if (!$url) { + $url = $remote->{pushurl} || $remote->{url}; + } + } + my $dst = join '/', $url, $lft, $branch_name, ($rgt || ()); + + if ($dst =~ /^https:/ && $src =~ /^http:/) { + $src=~s/^http:/https:/; + } + + ::_req_svn(); + + my $ctx = SVN::Client->new( + auth => Git::SVN::Ra::_auth_providers(), + log_msg => sub { + ${ $_[0] } = defined $_message + ? $_message + : 'Create ' . ($_tag ? 'tag ' : 'branch ' ) + . $branch_name; + }, + ); + + eval { + $ctx->ls($dst, 'HEAD', 0); + } and die "branch ${branch_name} already exists\n"; + + print "Copying ${src} at r${rev} to ${dst}...\n"; + $ctx->copy($src, $rev, $dst) + unless $_dry_run; + + $gs->fetch_all; +} + +sub cmd_find_rev { + my $revision_or_hash = shift or die "SVN or git revision required ", + "as a command-line argument\n"; + my $result; + if ($revision_or_hash =~ /^r\d+$/) { + my $head = shift; + $head ||= 'HEAD'; + my @refs; + my (undef, undef, $uuid, $gs) = working_head_info($head, \@refs); + unless ($gs) { + die "Unable to determine upstream SVN information from ", + "$head history\n"; + } + my $desired_revision = substr($revision_or_hash, 1); + $result = $gs->rev_map_get($desired_revision, $uuid); + } else { + my (undef, $rev, undef) = cmt_metadata($revision_or_hash); + $result = $rev; + } + print "$result\n" if $result; +} + +sub auto_create_empty_directories { + my ($gs) = @_; + my $var = eval { command_oneline('config', '--get', '--bool', + "svn-remote.$gs->{repo_id}.automkdirs") }; + # By default, create empty directories by consulting the unhandled log, + # but allow setting it to 'false' to skip it. + return !($var && $var eq 'false'); +} + +sub cmd_rebase { + command_noisy(qw/update-index --refresh/); + my ($url, $rev, $uuid, $gs) = working_head_info('HEAD'); + unless ($gs) { + die "Unable to determine upstream SVN information from ", + "working tree history\n"; + } + if ($_dry_run) { + print "Remote Branch: " . $gs->refname . "\n"; + print "SVN URL: " . $url . "\n"; + return; + } + if (command(qw/diff-index HEAD --/)) { + print STDERR "Cannot rebase with uncommited changes:\n"; + command_noisy('status'); + exit 1; + } + unless ($_local) { + # rebase will checkout for us, so no need to do it explicitly + $_no_checkout = 'true'; + $_fetch_all ? $gs->fetch_all : $gs->fetch; + } + command_noisy(rebase_cmd(), $gs->refname); + if (auto_create_empty_directories($gs)) { + $gs->mkemptydirs; + } +} + +sub cmd_show_ignore { + my ($url, $rev, $uuid, $gs) = working_head_info('HEAD'); + $gs ||= Git::SVN->new; + my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum); + $gs->prop_walk($gs->{path}, $r, sub { + my ($gs, $path, $props) = @_; + print STDOUT "\n# $path\n"; + my $s = $props->{'svn:ignore'} or return; + $s =~ s/[\r\n]+/\n/g; + $s =~ s/^\n+//; + chomp $s; + $s =~ s#^#$path#gm; + print STDOUT "$s\n"; + }); +} + +sub cmd_show_externals { + my ($url, $rev, $uuid, $gs) = working_head_info('HEAD'); + $gs ||= Git::SVN->new; + my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum); + $gs->prop_walk($gs->{path}, $r, sub { + my ($gs, $path, $props) = @_; + print STDOUT "\n# $path\n"; + my $s = $props->{'svn:externals'} or return; + $s =~ s/[\r\n]+/\n/g; + chomp $s; + $s =~ s#^#$path#gm; + print STDOUT "$s\n"; + }); +} + +sub cmd_create_ignore { + my ($url, $rev, $uuid, $gs) = working_head_info('HEAD'); + $gs ||= Git::SVN->new; + my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum); + $gs->prop_walk($gs->{path}, $r, sub { + my ($gs, $path, $props) = @_; + # $path is of the form /path/to/dir/ + $path = '.' . $path; + # SVN can have attributes on empty directories, + # which git won't track + mkpath([$path]) unless -d $path; + my $ignore = $path . '.gitignore'; + my $s = $props->{'svn:ignore'} or return; + open(GITIGNORE, '>', $ignore) + or fatal("Failed to open `$ignore' for writing: $!"); + $s =~ s/[\r\n]+/\n/g; + $s =~ s/^\n+//; + chomp $s; + # Prefix all patterns so that the ignore doesn't apply + # to sub-directories. + $s =~ s#^#/#gm; + print GITIGNORE "$s\n"; + close(GITIGNORE) + or fatal("Failed to close `$ignore': $!"); + command_noisy('add', '-f', $ignore); + }); +} + +sub cmd_mkdirs { + my ($url, $rev, $uuid, $gs) = working_head_info('HEAD'); + $gs ||= Git::SVN->new; + $gs->mkemptydirs($_revision); +} + +sub canonicalize_path { + my ($path) = @_; + my $dot_slash_added = 0; + if (substr($path, 0, 1) ne "/") { + $path = "./" . $path; + $dot_slash_added = 1; + } + # File::Spec->canonpath doesn't collapse x/../y into y (for a + # good reason), so let's do this manually. + $path =~ s#/+#/#g; + $path =~ s#/\.(?:/|$)#/#g; + $path =~ s#/[^/]+/\.\.##g; + $path =~ s#/$##g; + $path =~ s#^\./## if $dot_slash_added; + $path =~ s#^/##; + $path =~ s#^\.$##; + return $path; +} + +sub canonicalize_url { + my ($url) = @_; + $url =~ s#^([^:]+://[^/]*/)(.*)$#$1 . canonicalize_path($2)#e; + return $url; +} + +# get_svnprops(PATH) +# ------------------ +# Helper for cmd_propget and cmd_proplist below. +sub get_svnprops { + my $path = shift; + my ($url, $rev, $uuid, $gs) = working_head_info('HEAD'); + $gs ||= Git::SVN->new; + + # prefix THE PATH by the sub-directory from which the user + # invoked us. + $path = $cmd_dir_prefix . $path; + fatal("No such file or directory: $path") unless -e $path; + my $is_dir = -d $path ? 1 : 0; + $path = $gs->{path} . '/' . $path; + + # canonicalize the path (otherwise libsvn will abort or fail to + # find the file) + $path = canonicalize_path($path); + + my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum); + my $props; + if ($is_dir) { + (undef, undef, $props) = $gs->ra->get_dir($path, $r); + } + else { + (undef, $props) = $gs->ra->get_file($path, $r, undef); + } + return $props; +} + +# cmd_propget (PROP, PATH) +# ------------------------ +# Print the SVN property PROP for PATH. +sub cmd_propget { + my ($prop, $path) = @_; + $path = '.' if not defined $path; + usage(1) if not defined $prop; + my $props = get_svnprops($path); + if (not defined $props->{$prop}) { + fatal("`$path' does not have a `$prop' SVN property."); + } + print $props->{$prop} . "\n"; +} + +# cmd_proplist (PATH) +# ------------------- +# Print the list of SVN properties for PATH. +sub cmd_proplist { + my $path = shift; + $path = '.' if not defined $path; + my $props = get_svnprops($path); + print "Properties on '$path':\n"; + foreach (sort keys %{$props}) { + print " $_\n"; + } +} + +sub cmd_multi_init { + my $url = shift; + unless (defined $_trunk || @_branches || @_tags) { + usage(1); + } + + $_prefix = '' unless defined $_prefix; + if (defined $url) { + $url = canonicalize_url($url); + init_subdir(@_); + } + do_git_init_db(); + if (defined $_trunk) { + $_trunk =~ s#^/+##; + my $trunk_ref = 'refs/remotes/' . $_prefix . 'trunk'; + # try both old-style and new-style lookups: + my $gs_trunk = eval { Git::SVN->new($trunk_ref) }; + unless ($gs_trunk) { + my ($trunk_url, $trunk_path) = + complete_svn_url($url, $_trunk); + $gs_trunk = Git::SVN->init($trunk_url, $trunk_path, + undef, $trunk_ref); + } + } + return unless @_branches || @_tags; + my $ra = $url ? Git::SVN::Ra->new($url) : undef; + foreach my $path (@_branches) { + complete_url_ls_init($ra, $path, '--branches/-b', $_prefix); + } + foreach my $path (@_tags) { + complete_url_ls_init($ra, $path, '--tags/-t', $_prefix.'tags/'); + } +} + +sub cmd_multi_fetch { + $Git::SVN::no_reuse_existing = undef; + my $remotes = Git::SVN::read_all_remotes(); + foreach my $repo_id (sort keys %$remotes) { + if ($remotes->{$repo_id}->{url}) { + Git::SVN::fetch_all($repo_id, $remotes); + } + } +} + +# this command is special because it requires no metadata +sub cmd_commit_diff { + my ($ta, $tb, $url) = @_; + my $usage = "Usage: $0 commit-diff -r<revision> ". + "<tree-ish> <tree-ish> [<URL>]"; + fatal($usage) if (!defined $ta || !defined $tb); + my $svn_path = ''; + if (!defined $url) { + my $gs = eval { Git::SVN->new }; + if (!$gs) { + fatal("Needed URL or usable git-svn --id in ", + "the command-line\n", $usage); + } + $url = $gs->{url}; + $svn_path = $gs->{path}; + } + unless (defined $_revision) { + fatal("-r|--revision is a required argument\n", $usage); + } + if (defined $_message && defined $_file) { + fatal("Both --message/-m and --file/-F specified ", + "for the commit message.\n", + "I have no idea what you mean"); + } + if (defined $_file) { + $_message = file_to_s($_file); + } else { + $_message ||= get_commit_entry($tb)->{log}; + } + my $ra ||= Git::SVN::Ra->new($url); + my $r = $_revision; + if ($r eq 'HEAD') { + $r = $ra->get_latest_revnum; + } elsif ($r !~ /^\d+$/) { + die "revision argument: $r not understood by git-svn\n"; + } + my %ed_opts = ( r => $r, + log => $_message, + ra => $ra, + tree_a => $ta, + tree_b => $tb, + editor_cb => sub { print "Committed r$_[0]\n" }, + svn_path => $svn_path ); + if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) { + print "No changes\n$ta == $tb\n"; + } +} + +sub escape_uri_only { + my ($uri) = @_; + my @tmp; + foreach (split m{/}, $uri) { + s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg; + push @tmp, $_; + } + join('/', @tmp); +} + +sub escape_url { + my ($url) = @_; + if ($url =~ m#^([^:]+)://([^/]*)(.*)$#) { + my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3)); + $url = "$scheme://$domain$uri"; + } + $url; +} + +sub cmd_info { + my $path = canonicalize_path(defined($_[0]) ? $_[0] : "."); + my $fullpath = canonicalize_path($cmd_dir_prefix . $path); + if (exists $_[1]) { + die "Too many arguments specified\n"; + } + + my ($file_type, $diff_status) = find_file_type_and_diff_status($path); + + if (!$file_type && !$diff_status) { + print STDERR "svn: '$path' is not under version control\n"; + exit 1; + } + + my ($url, $rev, $uuid, $gs) = working_head_info('HEAD'); + unless ($gs) { + die "Unable to determine upstream SVN information from ", + "working tree history\n"; + } + + # canonicalize_path() will return "" to make libsvn 1.5.x happy, + $path = "." if $path eq ""; + + my $full_url = $url . ($fullpath eq "" ? "" : "/$fullpath"); + + if ($_url) { + print escape_url($full_url), "\n"; + return; + } + + my $result = "Path: $path\n"; + $result .= "Name: " . basename($path) . "\n" if $file_type ne "dir"; + $result .= "URL: " . escape_url($full_url) . "\n"; + + eval { + my $repos_root = $gs->repos_root; + Git::SVN::remove_username($repos_root); + $result .= "Repository Root: " . escape_url($repos_root) . "\n"; + }; + if ($@) { + $result .= "Repository Root: (offline)\n"; + } + ::_req_svn(); + $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A" && + ($SVN::Core::VERSION le '1.5.4' || $file_type ne "dir"); + $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n"; + + $result .= "Node Kind: " . + ($file_type eq "dir" ? "directory" : "file") . "\n"; + + my $schedule = $diff_status eq "A" + ? "add" + : ($diff_status eq "D" ? "delete" : "normal"); + $result .= "Schedule: $schedule\n"; + + if ($diff_status eq "A") { + print $result, "\n"; + return; + } + + my ($lc_author, $lc_rev, $lc_date_utc); + my @args = Git::SVN::Log::git_svn_log_cmd($rev, $rev, "--", $fullpath); + my $log = command_output_pipe(@args); + my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/; + while (<$log>) { + if (/^${esc_color}author (.+) <[^>]+> (\d+) ([\-\+]?\d+)$/o) { + $lc_author = $1; + $lc_date_utc = Git::SVN::Log::parse_git_date($2, $3); + } elsif (/^${esc_color} (git-svn-id:.+)$/o) { + (undef, $lc_rev, undef) = ::extract_metadata($1); + } + } + close $log; + + Git::SVN::Log::set_local_timezone(); + + $result .= "Last Changed Author: $lc_author\n"; + $result .= "Last Changed Rev: $lc_rev\n"; + $result .= "Last Changed Date: " . + Git::SVN::Log::format_svn_date($lc_date_utc) . "\n"; + + if ($file_type ne "dir") { + my $text_last_updated_date = + ($diff_status eq "D" ? $lc_date_utc : (stat $path)[9]); + $result .= + "Text Last Updated: " . + Git::SVN::Log::format_svn_date($text_last_updated_date) . + "\n"; + my $checksum; + if ($diff_status eq "D") { + my ($fh, $ctx) = + command_output_pipe(qw(cat-file blob), "HEAD:$path"); + if ($file_type eq "link") { + my $file_name = <$fh>; + $checksum = md5sum("link $file_name"); + } else { + $checksum = md5sum($fh); + } + command_close_pipe($fh, $ctx); + } elsif ($file_type eq "link") { + my $file_name = + command(qw(cat-file blob), "HEAD:$path"); + $checksum = + md5sum("link " . $file_name); + } else { + open FILE, "<", $path or die $!; + $checksum = md5sum(\*FILE); + close FILE or die $!; + } + $result .= "Checksum: " . $checksum . "\n"; + } + + print $result, "\n"; +} + +sub cmd_reset { + my $target = shift || $_revision or die "SVN revision required\n"; + $target = $1 if $target =~ /^r(\d+)$/; + $target =~ /^\d+$/ or die "Numeric SVN revision expected\n"; + my ($url, $rev, $uuid, $gs) = working_head_info('HEAD'); + unless ($gs) { + die "Unable to determine upstream SVN information from ". + "history\n"; + } + my ($r, $c) = $gs->find_rev_before($target, not $_fetch_parent); + die "Cannot find SVN revision $target\n" unless defined($c); + $gs->rev_map_set($r, $c, 'reset', $uuid); + print "r$r = $c ($gs->{ref_id})\n"; +} + +sub cmd_gc { + if (!$can_compress) { + warn "Compress::Zlib could not be found; unhandled.log " . + "files will not be compressed.\n"; + } + find({ wanted => \&gc_directory, no_chdir => 1}, "$ENV{GIT_DIR}/svn"); +} + +########################### utility functions ######################### + +sub rebase_cmd { + my @cmd = qw/rebase/; + push @cmd, '-v' if $_verbose; + push @cmd, qw/--merge/ if $_merge; + push @cmd, "--strategy=$_strategy" if $_strategy; + @cmd; +} + +sub post_fetch_checkout { + return if $_no_checkout; + my $gs = $Git::SVN::_head or return; + return if verify_ref('refs/heads/master^0'); + + # look for "trunk" ref if it exists + my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}}; + my $fetch = $remote->{fetch}; + if ($fetch) { + foreach my $p (keys %$fetch) { + basename($fetch->{$p}) eq 'trunk' or next; + $gs = Git::SVN->new($fetch->{$p}, $gs->{repo_id}, $p); + last; + } + } + + my $valid_head = verify_ref('HEAD^0'); + command_noisy(qw(update-ref refs/heads/master), $gs->refname); + return if ($valid_head || !verify_ref('HEAD^0')); + + return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#; + my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index"; + return if -f $index; + + return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false'; + return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true'; + command_noisy(qw/read-tree -m -u -v HEAD HEAD/); + print STDERR "Checked out HEAD:\n ", + $gs->full_url, " r", $gs->last_rev, "\n"; + if (auto_create_empty_directories($gs)) { + $gs->mkemptydirs($gs->last_rev); + } +} + +sub complete_svn_url { + my ($url, $path) = @_; + $path =~ s#/+$##; + if ($path !~ m#^[a-z\+]+://#) { + if (!defined $url || $url !~ m#^[a-z\+]+://#) { + fatal("E: '$path' is not a complete URL ", + "and a separate URL is not specified"); + } + return ($url, $path); + } + return ($path, ''); +} + +sub complete_url_ls_init { + my ($ra, $repo_path, $switch, $pfx) = @_; + unless ($repo_path) { + print STDERR "W: $switch not specified\n"; + return; + } + $repo_path =~ s#/+$##; + if ($repo_path =~ m#^[a-z\+]+://#) { + $ra = Git::SVN::Ra->new($repo_path); + $repo_path = ''; + } else { + $repo_path =~ s#^/+##; + unless ($ra) { + fatal("E: '$repo_path' is not a complete URL ", + "and a separate URL is not specified"); + } + } + my $url = $ra->{url}; + my $gs = Git::SVN->init($url, undef, undef, undef, 1); + my $k = "svn-remote.$gs->{repo_id}.url"; + my $orig_url = eval { command_oneline(qw/config --get/, $k) }; + if ($orig_url && ($orig_url ne $gs->{url})) { + die "$k already set: $orig_url\n", + "wanted to set to: $gs->{url}\n"; + } + command_oneline('config', $k, $gs->{url}) unless $orig_url; + my $remote_path = "$gs->{path}/$repo_path"; + $remote_path =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg; + $remote_path =~ s#/+#/#g; + $remote_path =~ s#^/##g; + $remote_path .= "/*" if $remote_path !~ /\*/; + my ($n) = ($switch =~ /^--(\w+)/); + if (length $pfx && $pfx !~ m#/$#) { + die "--prefix='$pfx' must have a trailing slash '/'\n"; + } + command_noisy('config', + '--add', + "svn-remote.$gs->{repo_id}.$n", + "$remote_path:refs/remotes/$pfx*" . + ('/*' x (($remote_path =~ tr/*/*/) - 1)) ); +} + +sub verify_ref { + my ($ref) = @_; + eval { command_oneline([ 'rev-parse', '--verify', $ref ], + { STDERR => 0 }); }; +} + +sub get_tree_from_treeish { + my ($treeish) = @_; + # $treeish can be a symbolic ref, too: + my $type = command_oneline(qw/cat-file -t/, $treeish); + my $expected; + while ($type eq 'tag') { + ($treeish, $type) = command(qw/cat-file tag/, $treeish); + } + if ($type eq 'commit') { + $expected = (grep /^tree /, command(qw/cat-file commit/, + $treeish))[0]; + ($expected) = ($expected =~ /^tree ($sha1)$/o); + die "Unable to get tree from $treeish\n" unless $expected; + } elsif ($type eq 'tree') { + $expected = $treeish; + } else { + die "$treeish is a $type, expected tree, tag or commit\n"; + } + return $expected; +} + +sub get_commit_entry { + my ($treeish) = shift; + my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) ); + my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG"; + my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG"; + open my $log_fh, '>', $commit_editmsg or croak $!; + + my $type = command_oneline(qw/cat-file -t/, $treeish); + if ($type eq 'commit' || $type eq 'tag') { + my ($msg_fh, $ctx) = command_output_pipe('cat-file', + $type, $treeish); + my $in_msg = 0; + my $author; + my $saw_from = 0; + my $msgbuf = ""; + while (<$msg_fh>) { + if (!$in_msg) { + $in_msg = 1 if (/^\s*$/); + $author = $1 if (/^author (.*>)/); + } elsif (/^git-svn-id: /) { + # skip this for now, we regenerate the + # correct one on re-fetch anyways + # TODO: set *:merge properties or like... + } else { + if (/^From:/ || /^Signed-off-by:/) { + $saw_from = 1; + } + $msgbuf .= $_; + } + } + $msgbuf =~ s/\s+$//s; + if ($Git::SVN::_add_author_from && defined($author) + && !$saw_from) { + $msgbuf .= "\n\nFrom: $author"; + } + print $log_fh $msgbuf or croak $!; + command_close_pipe($msg_fh, $ctx); + } + close $log_fh or croak $!; + + if ($_edit || ($type eq 'tree')) { + chomp(my $editor = command_oneline(qw(var GIT_EDITOR))); + system('sh', '-c', $editor.' "$@"', $editor, $commit_editmsg); + } + rename $commit_editmsg, $commit_msg or croak $!; + { + require Encode; + # SVN requires messages to be UTF-8 when entering the repo + local $/; + open $log_fh, '<', $commit_msg or croak $!; + binmode $log_fh; + chomp($log_entry{log} = <$log_fh>); + + my $enc = Git::config('i18n.commitencoding') || 'UTF-8'; + my $msg = $log_entry{log}; + + eval { $msg = Encode::decode($enc, $msg, 1) }; + if ($@) { + die "Could not decode as $enc:\n", $msg, + "\nPerhaps you need to set i18n.commitencoding\n"; + } + + eval { $msg = Encode::encode('UTF-8', $msg, 1) }; + die "Could not encode as UTF-8:\n$msg\n" if $@; + + $log_entry{log} = $msg; + + close $log_fh or croak $!; + } + unlink $commit_msg; + \%log_entry; +} + +sub s_to_file { + my ($str, $file, $mode) = @_; + open my $fd,'>',$file or croak $!; + print $fd $str,"\n" or croak $!; + close $fd or croak $!; + chmod ($mode &~ umask, $file) if (defined $mode); +} + +sub file_to_s { + my $file = shift; + open my $fd,'<',$file or croak "$!: file: $file\n"; + local $/; + my $ret = <$fd>; + close $fd or croak $!; + $ret =~ s/\s*$//s; + return $ret; +} + +# '<svn username> = real-name <email address>' mapping based on git-svnimport: +sub load_authors { + open my $authors, '<', $_authors or die "Can't open $_authors $!\n"; + my $log = $cmd eq 'log'; + while (<$authors>) { + chomp; + next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/; + my ($user, $name, $email) = ($1, $2, $3); + if ($log) { + $Git::SVN::Log::rusers{"$name <$email>"} = $user; + } else { + $users{$user} = [$name, $email]; + } + } + close $authors or croak $!; +} + +# convert GetOpt::Long specs for use by git-config +sub read_git_config { + my $opts = shift; + my @config_only; + foreach my $o (keys %$opts) { + # if we have mixedCase and a long option-only, then + # it's a config-only variable that we don't need for + # the command-line. + push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i); + my $v = $opts->{$o}; + my ($key) = ($o =~ /^([a-zA-Z\-]+)/); + $key =~ s/-//g; + my $arg = 'git config'; + $arg .= ' --int' if ($o =~ /[:=]i$/); + $arg .= ' --bool' if ($o !~ /[:=][sfi]$/); + if (ref $v eq 'ARRAY') { + chomp(my @tmp = `$arg --get-all svn.$key`); + @$v = @tmp if @tmp; + } else { + chomp(my $tmp = `$arg --get svn.$key`); + if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) { + $$v = $tmp; + } + } + } + delete @$opts{@config_only} if @config_only; +} + +sub extract_metadata { + my $id = shift or return (undef, undef, undef); + my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+) + \s([a-f\d\-]+)$/ix); + if (!defined $rev || !$uuid || !$url) { + # some of the original repositories I made had + # identifiers like this: + ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/i); + } + return ($url, $rev, $uuid); +} + +sub cmt_metadata { + return extract_metadata((grep(/^git-svn-id: /, + command(qw/cat-file commit/, shift)))[-1]); +} + +sub cmt_sha2rev_batch { + my %s2r; + my ($pid, $in, $out, $ctx) = command_bidi_pipe(qw/cat-file --batch/); + my $list = shift; + + foreach my $sha (@{$list}) { + my $first = 1; + my $size = 0; + print $out $sha, "\n"; + + while (my $line = <$in>) { + if ($first && $line =~ /^[[:xdigit:]]{40}\smissing$/) { + last; + } elsif ($first && + $line =~ /^[[:xdigit:]]{40}\scommit\s(\d+)$/) { + $first = 0; + $size = $1; + next; + } elsif ($line =~ /^(git-svn-id: )/) { + my (undef, $rev, undef) = + extract_metadata($line); + $s2r{$sha} = $rev; + } + + $size -= length($line); + last if ($size == 0); + } + } + + command_close_bidi_pipe($pid, $in, $out, $ctx); + + return \%s2r; +} + +sub working_head_info { + my ($head, $refs) = @_; + my @args = qw/log --no-color --no-decorate --first-parent + --pretty=medium/; + my ($fh, $ctx) = command_output_pipe(@args, $head); + my $hash; + my %max; + while (<$fh>) { + if ( m{^commit ($::sha1)$} ) { + unshift @$refs, $hash if $hash and $refs; + $hash = $1; + next; + } + next unless s{^\s*(git-svn-id:)}{$1}; + my ($url, $rev, $uuid) = extract_metadata($_); + if (defined $url && defined $rev) { + next if $max{$url} and $max{$url} < $rev; + if (my $gs = Git::SVN->find_by_url($url)) { + my $c = $gs->rev_map_get($rev, $uuid); + if ($c && $c eq $hash) { + close $fh; # break the pipe + return ($url, $rev, $uuid, $gs); + } else { + $max{$url} ||= $gs->rev_map_max; + } + } + } + } + command_close_pipe($fh, $ctx); + (undef, undef, undef, undef); +} + +sub read_commit_parents { + my ($parents, $c) = @_; + chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c)); + $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n"; + @{$parents->{$c}} = split(/ /, $p); +} + +sub linearize_history { + my ($gs, $refs) = @_; + my %parents; + foreach my $c (@$refs) { + read_commit_parents(\%parents, $c); + } + + my @linear_refs; + my %skip = (); + my $last_svn_commit = $gs->last_commit; + foreach my $c (reverse @$refs) { + next if $c eq $last_svn_commit; + last if $skip{$c}; + + unshift @linear_refs, $c; + $skip{$c} = 1; + + # we only want the first parent to diff against for linear + # history, we save the rest to inject when we finalize the + # svn commit + my $fp_a = verify_ref("$c~1"); + my $fp_b = shift @{$parents{$c}} if $parents{$c}; + if (!$fp_a || !$fp_b) { + die "Commit $c\n", + "has no parent commit, and therefore ", + "nothing to diff against.\n", + "You should be working from a repository ", + "originally created by git-svn\n"; + } + if ($fp_a ne $fp_b) { + die "$c~1 = $fp_a, however parsing commit $c ", + "revealed that:\n$c~1 = $fp_b\nBUG!\n"; + } + + foreach my $p (@{$parents{$c}}) { + $skip{$p} = 1; + } + } + (\@linear_refs, \%parents); +} + +sub find_file_type_and_diff_status { + my ($path) = @_; + return ('dir', '') if $path eq ''; + + my $diff_output = + command_oneline(qw(diff --cached --name-status --), $path) || ""; + my $diff_status = (split(' ', $diff_output))[0] || ""; + + my $ls_tree = command_oneline(qw(ls-tree HEAD), $path) || ""; + + return (undef, undef) if !$diff_status && !$ls_tree; + + if ($diff_status eq "A") { + return ("link", $diff_status) if -l $path; + return ("dir", $diff_status) if -d $path; + return ("file", $diff_status); + } + + my $mode = (split(' ', $ls_tree))[0] || ""; + + return ("link", $diff_status) if $mode eq "120000"; + return ("dir", $diff_status) if $mode eq "040000"; + return ("file", $diff_status); +} + +sub md5sum { + my $arg = shift; + my $ref = ref $arg; + my $md5 = Digest::MD5->new(); + if ($ref eq 'GLOB' || $ref eq 'IO::File' || $ref eq 'File::Temp') { + $md5->addfile($arg) or croak $!; + } elsif ($ref eq 'SCALAR') { + $md5->add($$arg) or croak $!; + } elsif (!$ref) { + $md5->add($arg) or croak $!; + } else { + ::fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'"; + } + return $md5->hexdigest(); +} + +sub gc_directory { + if ($can_compress && -f $_ && basename($_) eq "unhandled.log") { + my $out_filename = $_ . ".gz"; + open my $in_fh, "<", $_ or die "Unable to open $_: $!\n"; + binmode $in_fh; + my $gz = Compress::Zlib::gzopen($out_filename, "ab") or + die "Unable to open $out_filename: $!\n"; + + my $res; + while ($res = sysread($in_fh, my $str, 1024)) { + $gz->gzwrite($str) or + die "Unable to write: ".$gz->gzerror()."!\n"; + } + unlink $_ or die "unlink $File::Find::name: $!\n"; + } elsif (-f $_ && basename($_) eq "index") { + unlink $_ or die "unlink $_: $!\n"; + } +} + +package Git::SVN; +use strict; +use warnings; +use Fcntl qw/:DEFAULT :seek/; +use constant rev_map_fmt => 'NH40'; +use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent + $_repack $_repack_flags $_use_svm_props $_head + $_use_svnsync_props $no_reuse_existing $_minimize_url + $_use_log_author $_add_author_from $_localtime/; +use Carp qw/croak/; +use File::Path qw/mkpath/; +use File::Copy qw/copy/; +use IPC::Open3; +use Memoize; # core since 5.8.0, Jul 2002 +use Memoize::Storable; + +my ($_gc_nr, $_gc_period); + +# properties that we do not log: +my %SKIP_PROP; +BEGIN { + %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url + svn:special svn:executable + svn:entry:committed-rev + svn:entry:last-author + svn:entry:uuid + svn:entry:committed-date/; + + # some options are read globally, but can be overridden locally + # per [svn-remote "..."] section. Command-line options will *NOT* + # override options set in an [svn-remote "..."] section + no strict 'refs'; + for my $option (qw/follow_parent no_metadata use_svm_props + use_svnsync_props/) { + my $key = $option; + $key =~ tr/_//d; + my $prop = "-$option"; + *$option = sub { + my ($self) = @_; + return $self->{$prop} if exists $self->{$prop}; + my $k = "svn-remote.$self->{repo_id}.$key"; + eval { command_oneline(qw/config --get/, $k) }; + if ($@) { + $self->{$prop} = ${"Git::SVN::_$option"}; + } else { + my $v = command_oneline(qw/config --bool/,$k); + $self->{$prop} = $v eq 'false' ? 0 : 1; + } + return $self->{$prop}; + } + } +} + + +my (%LOCKFILES, %INDEX_FILES); +END { + unlink keys %LOCKFILES if %LOCKFILES; + unlink keys %INDEX_FILES if %INDEX_FILES; +} + +sub resolve_local_globs { + my ($url, $fetch, $glob_spec) = @_; + return unless defined $glob_spec; + my $ref = $glob_spec->{ref}; + my $path = $glob_spec->{path}; + foreach (command(qw#for-each-ref --format=%(refname) refs/#)) { + next unless m#^$ref->{regex}$#; + my $p = $1; + my $pathname = desanitize_refname($path->full_path($p)); + my $refname = desanitize_refname($ref->full_path($p)); + if (my $existing = $fetch->{$pathname}) { + if ($existing ne $refname) { + die "Refspec conflict:\n", + "existing: $existing\n", + " globbed: $refname\n"; + } + my $u = (::cmt_metadata("$refname"))[0]; + $u =~ s!^\Q$url\E(/|$)!! or die + "$refname: '$url' not found in '$u'\n"; + if ($pathname ne $u) { + warn "W: Refspec glob conflict ", + "(ref: $refname):\n", + "expected path: $pathname\n", + " real path: $u\n", + "Continuing ahead with $u\n"; + next; + } + } else { + $fetch->{$pathname} = $refname; + } + } +} + +sub parse_revision_argument { + my ($base, $head) = @_; + if (!defined $::_revision || $::_revision eq 'BASE:HEAD') { + return ($base, $head); + } + return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/); + return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/); + return ($head, $head) if ($::_revision eq 'HEAD'); + return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/); + return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/); + die "revision argument: $::_revision not understood by git-svn\n"; +} + +sub fetch_all { + my ($repo_id, $remotes) = @_; + if (ref $repo_id) { + my $gs = $repo_id; + $repo_id = undef; + $repo_id = $gs->{repo_id}; + } + $remotes ||= read_all_remotes(); + my $remote = $remotes->{$repo_id} or + die "[svn-remote \"$repo_id\"] unknown\n"; + my $fetch = $remote->{fetch}; + my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n"; + my (@gs, @globs); + my $ra = Git::SVN::Ra->new($url); + my $uuid = $ra->get_uuid; + my $head = $ra->get_latest_revnum; + + # ignore errors, $head revision may not even exist anymore + eval { $ra->get_log("", $head, 0, 1, 0, 1, sub { $head = $_[1] }) }; + warn "W: $@\n" if $@; + + my $base = defined $fetch ? $head : 0; + + # read the max revs for wildcard expansion (branches/*, tags/*) + foreach my $t (qw/branches tags/) { + defined $remote->{$t} or next; + push @globs, @{$remote->{$t}}; + + my $max_rev = eval { tmp_config(qw/--int --get/, + "svn-remote.$repo_id.${t}-maxRev") }; + if (defined $max_rev && ($max_rev < $base)) { + $base = $max_rev; + } elsif (!defined $max_rev) { + $base = 0; + } + } + + if ($fetch) { + foreach my $p (sort keys %$fetch) { + my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p); + my $lr = $gs->rev_map_max; + if (defined $lr) { + $base = $lr if ($lr < $base); + } + push @gs, $gs; + } + } + + ($base, $head) = parse_revision_argument($base, $head); + $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs); +} + +sub read_all_remotes { + my $r = {}; + my $use_svm_props = eval { command_oneline(qw/config --bool + svn.useSvmProps/) }; + $use_svm_props = $use_svm_props eq 'true' if $use_svm_props; + my $svn_refspec = qr{\s*(.*?)\s*:\s*(.+?)\s*}; + foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) { + if (m!^(.+)\.fetch=$svn_refspec$!) { + my ($remote, $local_ref, $remote_ref) = ($1, $2, $3); + die("svn-remote.$remote: remote ref '$remote_ref' " + . "must start with 'refs/'\n") + unless $remote_ref =~ m{^refs/}; + $local_ref = uri_decode($local_ref); + $r->{$remote}->{fetch}->{$local_ref} = $remote_ref; + $r->{$remote}->{svm} = {} if $use_svm_props; + } elsif (m!^(.+)\.usesvmprops=\s*(.*)\s*$!) { + $r->{$1}->{svm} = {}; + } elsif (m!^(.+)\.url=\s*(.*)\s*$!) { + $r->{$1}->{url} = $2; + } elsif (m!^(.+)\.pushurl=\s*(.*)\s*$!) { + $r->{$1}->{pushurl} = $2; + } elsif (m!^(.+)\.ignore-refs=\s*(.*)\s*$!) { + $r->{$1}->{ignore_refs_regex} = $2; + } elsif (m!^(.+)\.(branches|tags)=$svn_refspec$!) { + my ($remote, $t, $local_ref, $remote_ref) = + ($1, $2, $3, $4); + die("svn-remote.$remote: remote ref '$remote_ref' ($t) " + . "must start with 'refs/'\n") + unless $remote_ref =~ m{^refs/}; + $local_ref = uri_decode($local_ref); + my $rs = { + t => $t, + remote => $remote, + path => Git::SVN::GlobSpec->new($local_ref, 1), + ref => Git::SVN::GlobSpec->new($remote_ref, 0) }; + if (length($rs->{ref}->{right}) != 0) { + die "The '*' glob character must be the last ", + "character of '$remote_ref'\n"; + } + push @{ $r->{$remote}->{$t} }, $rs; + } + } + + map { + if (defined $r->{$_}->{svm}) { + my $svm; + eval { + my $section = "svn-remote.$_"; + $svm = { + source => tmp_config('--get', + "$section.svm-source"), + replace => tmp_config('--get', + "$section.svm-replace"), + } + }; + $r->{$_}->{svm} = $svm; + } + } keys %$r; + + foreach my $remote (keys %$r) { + foreach ( grep { defined $_ } + map { $r->{$remote}->{$_} } qw(branches tags) ) { + foreach my $rs ( @$_ ) { + $rs->{ignore_refs_regex} = + $r->{$remote}->{ignore_refs_regex}; + } + } + } + + $r; +} + +sub init_vars { + $_gc_nr = $_gc_period = 1000; + if (defined $_repack || defined $_repack_flags) { + warn "Repack options are obsolete; they have no effect.\n"; + } +} + +sub verify_remotes_sanity { + return unless -d $ENV{GIT_DIR}; + my %seen; + foreach (command(qw/config -l/)) { + if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) { + if ($seen{$1}) { + die "Remote ref refs/remote/$1 is tracked by", + "\n \"$_\"\nand\n \"$seen{$1}\"\n", + "Please resolve this ambiguity in ", + "your git configuration file before ", + "continuing\n"; + } + $seen{$1} = $_; + } + } +} + +sub find_existing_remote { + my ($url, $remotes) = @_; + return undef if $no_reuse_existing; + my $existing; + foreach my $repo_id (keys %$remotes) { + my $u = $remotes->{$repo_id}->{url} or next; + next if $u ne $url; + $existing = $repo_id; + last; + } + $existing; +} + +sub init_remote_config { + my ($self, $url, $no_write) = @_; + $url =~ s!/+$!!; # strip trailing slash + my $r = read_all_remotes(); + my $existing = find_existing_remote($url, $r); + if ($existing) { + unless ($no_write) { + print STDERR "Using existing ", + "[svn-remote \"$existing\"]\n"; + } + $self->{repo_id} = $existing; + } elsif ($_minimize_url) { + my $min_url = Git::SVN::Ra->new($url)->minimize_url; + $existing = find_existing_remote($min_url, $r); + if ($existing) { + unless ($no_write) { + print STDERR "Using existing ", + "[svn-remote \"$existing\"]\n"; + } + $self->{repo_id} = $existing; + } + if ($min_url ne $url) { + unless ($no_write) { + print STDERR "Using higher level of URL: ", + "$url => $min_url\n"; + } + my $old_path = $self->{path}; + $self->{path} = $url; + $self->{path} =~ s!^\Q$min_url\E(/|$)!!; + if (length $old_path) { + $self->{path} .= "/$old_path"; + } + $url = $min_url; + } + } + my $orig_url; + if (!$existing) { + # verify that we aren't overwriting anything: + $orig_url = eval { + command_oneline('config', '--get', + "svn-remote.$self->{repo_id}.url") + }; + if ($orig_url && ($orig_url ne $url)) { + die "svn-remote.$self->{repo_id}.url already set: ", + "$orig_url\nwanted to set to: $url\n"; + } + } + my ($xrepo_id, $xpath) = find_ref($self->refname); + if (!$no_write && defined $xpath) { + die "svn-remote.$xrepo_id.fetch already set to track ", + "$xpath:", $self->refname, "\n"; + } + unless ($no_write) { + command_noisy('config', + "svn-remote.$self->{repo_id}.url", $url); + $self->{path} =~ s{^/}{}; + $self->{path} =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg; + command_noisy('config', '--add', + "svn-remote.$self->{repo_id}.fetch", + "$self->{path}:".$self->refname); + } + $self->{url} = $url; +} + +sub find_by_url { # repos_root and, path are optional + my ($class, $full_url, $repos_root, $path) = @_; + + return undef unless defined $full_url; + remove_username($full_url); + remove_username($repos_root) if defined $repos_root; + my $remotes = read_all_remotes(); + if (defined $full_url && defined $repos_root && !defined $path) { + $path = $full_url; + $path =~ s#^\Q$repos_root\E(?:/|$)##; + } + foreach my $repo_id (keys %$remotes) { + my $u = $remotes->{$repo_id}->{url} or next; + remove_username($u); + next if defined $repos_root && $repos_root ne $u; + + my $fetch = $remotes->{$repo_id}->{fetch} || {}; + foreach my $t (qw/branches tags/) { + foreach my $globspec (@{$remotes->{$repo_id}->{$t}}) { + resolve_local_globs($u, $fetch, $globspec); + } + } + my $p = $path; + my $rwr = rewrite_root({repo_id => $repo_id}); + my $svm = $remotes->{$repo_id}->{svm} + if defined $remotes->{$repo_id}->{svm}; + unless (defined $p) { + $p = $full_url; + my $z = $u; + my $prefix = ''; + if ($rwr) { + $z = $rwr; + remove_username($z); + } elsif (defined $svm) { + $z = $svm->{source}; + $prefix = $svm->{replace}; + $prefix =~ s#^\Q$u\E(?:/|$)##; + $prefix =~ s#/$##; + } + $p =~ s#^\Q$z\E(?:/|$)#$prefix# or next; + } + foreach my $f (keys %$fetch) { + next if $f ne $p; + return Git::SVN->new($fetch->{$f}, $repo_id, $f); + } + } + undef; +} + +sub init { + my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_; + my $self = _new($class, $repo_id, $ref_id, $path); + if (defined $url) { + $self->init_remote_config($url, $no_write); + } + $self; +} + +sub find_ref { + my ($ref_id) = @_; + foreach (command(qw/config -l/)) { + next unless m!^svn-remote\.(.+)\.fetch= + \s*(.*?)\s*:\s*(.+?)\s*$!x; + my ($repo_id, $path, $ref) = ($1, $2, $3); + if ($ref eq $ref_id) { + $path = '' if ($path =~ m#^\./?#); + return ($repo_id, $path); + } + } + (undef, undef, undef); +} + +sub new { + my ($class, $ref_id, $repo_id, $path) = @_; + if (defined $ref_id && !defined $repo_id && !defined $path) { + ($repo_id, $path) = find_ref($ref_id); + if (!defined $repo_id) { + die "Could not find a \"svn-remote.*.fetch\" key ", + "in the repository configuration matching: ", + "$ref_id\n"; + } + } + my $self = _new($class, $repo_id, $ref_id, $path); + if (!defined $self->{path} || !length $self->{path}) { + my $fetch = command_oneline('config', '--get', + "svn-remote.$repo_id.fetch", + ":$ref_id\$") or + die "Failed to read \"svn-remote.$repo_id.fetch\" ", + "\":$ref_id\$\" in config\n"; + ($self->{path}, undef) = split(/\s*:\s*/, $fetch); + } + $self->{path} =~ s{/+}{/}g; + $self->{path} =~ s{\A/}{}; + $self->{path} =~ s{/\z}{}; + $self->{url} = command_oneline('config', '--get', + "svn-remote.$repo_id.url") or + die "Failed to read \"svn-remote.$repo_id.url\" in config\n"; + $self->{pushurl} = eval { command_oneline('config', '--get', + "svn-remote.$repo_id.pushurl") }; + $self->rebuild; + $self; +} + +sub refname { + my ($refname) = $_[0]->{ref_id} ; + + # It cannot end with a slash /, we'll throw up on this because + # SVN can't have directories with a slash in their name, either: + if ($refname =~ m{/$}) { + die "ref: '$refname' ends with a trailing slash, this is ", + "not permitted by git nor Subversion\n"; + } + + # It cannot have ASCII control character space, tilde ~, caret ^, + # colon :, question-mark ?, asterisk *, space, or open bracket [ + # anywhere. + # + # Additionally, % must be escaped because it is used for escaping + # and we want our escaped refname to be reversible + $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg; + + # no slash-separated component can begin with a dot . + # /.* becomes /%2E* + $refname =~ s{/\.}{/%2E}g; + + # It cannot have two consecutive dots .. anywhere + # .. becomes %2E%2E + $refname =~ s{\.\.}{%2E%2E}g; + + # trailing dots and .lock are not allowed + # .$ becomes %2E and .lock becomes %2Elock + $refname =~ s{\.(?=$|lock$)}{%2E}; + + # the sequence @{ is used to access the reflog + # @{ becomes %40{ + $refname =~ s{\@\{}{%40\{}g; + + return $refname; +} + +sub desanitize_refname { + my ($refname) = @_; + $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg; + return $refname; +} + +sub svm_uuid { + my ($self) = @_; + return $self->{svm}->{uuid} if $self->svm; + $self->ra; + unless ($self->{svm}) { + die "SVM UUID not cached, and reading remotely failed\n"; + } + $self->{svm}->{uuid}; +} + +sub svm { + my ($self) = @_; + return $self->{svm} if $self->{svm}; + my $svm; + # see if we have it in our config, first: + eval { + my $section = "svn-remote.$self->{repo_id}"; + $svm = { + source => tmp_config('--get', "$section.svm-source"), + uuid => tmp_config('--get', "$section.svm-uuid"), + replace => tmp_config('--get', "$section.svm-replace"), + } + }; + if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) { + $self->{svm} = $svm; + } + $self->{svm}; +} + +sub _set_svm_vars { + my ($self, $ra) = @_; + return $ra if $self->svm; + + my @err = ( "useSvmProps set, but failed to read SVM properties\n", + "(svm:source, svm:uuid) ", + "from the following URLs:\n" ); + sub read_svm_props { + my ($self, $ra, $path, $r) = @_; + my $props = ($ra->get_dir($path, $r))[2]; + my $src = $props->{'svm:source'}; + my $uuid = $props->{'svm:uuid'}; + return undef if (!$src || !$uuid); + + chomp($src, $uuid); + + $uuid =~ m{^[0-9a-f\-]{30,}$}i + or die "doesn't look right - svm:uuid is '$uuid'\n"; + + # the '!' is used to mark the repos_root!/relative/path + $src =~ s{/?!/?}{/}; + $src =~ s{/+$}{}; # no trailing slashes please + # username is of no interest + $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1}; + + my $replace = $ra->{url}; + $replace .= "/$path" if length $path; + + my $section = "svn-remote.$self->{repo_id}"; + tmp_config("$section.svm-source", $src); + tmp_config("$section.svm-replace", $replace); + tmp_config("$section.svm-uuid", $uuid); + $self->{svm} = { + source => $src, + uuid => $uuid, + replace => $replace + }; + } + + my $r = $ra->get_latest_revnum; + my $path = $self->{path}; + my %tried; + while (length $path) { + unless ($tried{"$self->{url}/$path"}) { + return $ra if $self->read_svm_props($ra, $path, $r); + $tried{"$self->{url}/$path"} = 1; + } + $path =~ s#/?[^/]+$##; + } + die "Path: '$path' should be ''\n" if $path ne ''; + return $ra if $self->read_svm_props($ra, $path, $r); + $tried{"$self->{url}/$path"} = 1; + + if ($ra->{repos_root} eq $self->{url}) { + die @err, (map { " $_\n" } keys %tried), "\n"; + } + + # nope, make sure we're connected to the repository root: + my $ok; + my @tried_b; + $path = $ra->{svn_path}; + $ra = Git::SVN::Ra->new($ra->{repos_root}); + while (length $path) { + unless ($tried{"$ra->{url}/$path"}) { + $ok = $self->read_svm_props($ra, $path, $r); + last if $ok; + $tried{"$ra->{url}/$path"} = 1; + } + $path =~ s#/?[^/]+$##; + } + die "Path: '$path' should be ''\n" if $path ne ''; + $ok ||= $self->read_svm_props($ra, $path, $r); + $tried{"$ra->{url}/$path"} = 1; + if (!$ok) { + die @err, (map { " $_\n" } keys %tried), "\n"; + } + Git::SVN::Ra->new($self->{url}); +} + +sub svnsync { + my ($self) = @_; + return $self->{svnsync} if $self->{svnsync}; + + if ($self->no_metadata) { + die "Can't have both 'noMetadata' and ", + "'useSvnsyncProps' options set!\n"; + } + if ($self->rewrite_root) { + die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ", + "options set!\n"; + } + if ($self->rewrite_uuid) { + die "Can't have both 'useSvnsyncProps' and 'rewriteUUID' ", + "options set!\n"; + } + + my $svnsync; + # see if we have it in our config, first: + eval { + my $section = "svn-remote.$self->{repo_id}"; + + my $url = tmp_config('--get', "$section.svnsync-url"); + ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or + die "doesn't look right - svn:sync-from-url is '$url'\n"; + + my $uuid = tmp_config('--get', "$section.svnsync-uuid"); + ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or + die "doesn't look right - svn:sync-from-uuid is '$uuid'\n"; + + $svnsync = { url => $url, uuid => $uuid } + }; + if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) { + return $self->{svnsync} = $svnsync; + } + + my $err = "useSvnsyncProps set, but failed to read " . + "svnsync property: svn:sync-from-"; + my $rp = $self->ra->rev_proplist(0); + + my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n"; + ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or + die "doesn't look right - svn:sync-from-url is '$url'\n"; + + my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n"; + ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or + die "doesn't look right - svn:sync-from-uuid is '$uuid'\n"; + + my $section = "svn-remote.$self->{repo_id}"; + tmp_config('--add', "$section.svnsync-uuid", $uuid); + tmp_config('--add', "$section.svnsync-url", $url); + return $self->{svnsync} = { url => $url, uuid => $uuid }; +} + +# this allows us to memoize our SVN::Ra UUID locally and avoid a +# remote lookup (useful for 'git svn log'). +sub ra_uuid { + my ($self) = @_; + unless ($self->{ra_uuid}) { + my $key = "svn-remote.$self->{repo_id}.uuid"; + my $uuid = eval { tmp_config('--get', $key) }; + if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/i) { + $self->{ra_uuid} = $uuid; + } else { + die "ra_uuid called without URL\n" unless $self->{url}; + $self->{ra_uuid} = $self->ra->get_uuid; + tmp_config('--add', $key, $self->{ra_uuid}); + } + } + $self->{ra_uuid}; +} + +sub _set_repos_root { + my ($self, $repos_root) = @_; + my $k = "svn-remote.$self->{repo_id}.reposRoot"; + $repos_root ||= $self->ra->{repos_root}; + tmp_config($k, $repos_root); + $repos_root; +} + +sub repos_root { + my ($self) = @_; + my $k = "svn-remote.$self->{repo_id}.reposRoot"; + eval { tmp_config('--get', $k) } || $self->_set_repos_root; +} + +sub ra { + my ($self) = shift; + my $ra = Git::SVN::Ra->new($self->{url}); + $self->_set_repos_root($ra->{repos_root}); + if ($self->use_svm_props && !$self->{svm}) { + if ($self->no_metadata) { + die "Can't have both 'noMetadata' and ", + "'useSvmProps' options set!\n"; + } elsif ($self->use_svnsync_props) { + die "Can't have both 'useSvnsyncProps' and ", + "'useSvmProps' options set!\n"; + } + $ra = $self->_set_svm_vars($ra); + $self->{-want_revprops} = 1; + } + $ra; +} + +# prop_walk(PATH, REV, SUB) +# ------------------------- +# Recursively traverse PATH at revision REV and invoke SUB for each +# directory that contains a SVN property. SUB will be invoked as +# follows: &SUB(gs, path, props); where `gs' is this instance of +# Git::SVN, `path' the path to the directory where the properties +# `props' were found. The `path' will be relative to point of checkout, +# that is, if url://repo/trunk is the current Git branch, and that +# directory contains a sub-directory `d', SUB will be invoked with `/d/' +# as `path' (note the trailing `/'). +sub prop_walk { + my ($self, $path, $rev, $sub) = @_; + + $path =~ s#^/##; + my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev); + $path =~ s#^/*#/#g; + my $p = $path; + # Strip the irrelevant part of the path. + $p =~ s#^/+\Q$self->{path}\E(/|$)#/#; + # Ensure the path is terminated by a `/'. + $p =~ s#/*$#/#; + + # The properties contain all the internal SVN stuff nobody + # (usually) cares about. + my $interesting_props = 0; + foreach (keys %{$props}) { + # If it doesn't start with `svn:', it must be a + # user-defined property. + ++$interesting_props and next if $_ !~ /^svn:/; + # FIXME: Fragile, if SVN adds new public properties, + # this needs to be updated. + ++$interesting_props if /^svn:(?:ignore|keywords|executable + |eol-style|mime-type + |externals|needs-lock)$/x; + } + &$sub($self, $p, $props) if $interesting_props; + + foreach (sort keys %$dirent) { + next if $dirent->{$_}->{kind} != $SVN::Node::dir; + $self->prop_walk($self->{path} . $p . $_, $rev, $sub); + } +} + +sub last_rev { ($_[0]->last_rev_commit)[0] } +sub last_commit { ($_[0]->last_rev_commit)[1] } + +# returns the newest SVN revision number and newest commit SHA1 +sub last_rev_commit { + my ($self) = @_; + if (defined $self->{last_rev} && defined $self->{last_commit}) { + return ($self->{last_rev}, $self->{last_commit}); + } + my $c = ::verify_ref($self->refname.'^0'); + if ($c && !$self->use_svm_props && !$self->no_metadata) { + my $rev = (::cmt_metadata($c))[1]; + if (defined $rev) { + ($self->{last_rev}, $self->{last_commit}) = ($rev, $c); + return ($rev, $c); + } + } + my $map_path = $self->map_path; + unless (-e $map_path) { + ($self->{last_rev}, $self->{last_commit}) = (undef, undef); + return (undef, undef); + } + my ($rev, $commit) = $self->rev_map_max(1); + ($self->{last_rev}, $self->{last_commit}) = ($rev, $commit); + return ($rev, $commit); +} + +sub get_fetch_range { + my ($self, $min, $max) = @_; + $max ||= $self->ra->get_latest_revnum; + $min ||= $self->rev_map_max; + (++$min, $max); +} + +sub tmp_config { + my (@args) = @_; + my $old_def_config = "$ENV{GIT_DIR}/svn/config"; + my $config = "$ENV{GIT_DIR}/svn/.metadata"; + if (! -f $config && -f $old_def_config) { + rename $old_def_config, $config or + die "Failed rename $old_def_config => $config: $!\n"; + } + my $old_config = $ENV{GIT_CONFIG}; + $ENV{GIT_CONFIG} = $config; + $@ = undef; + my @ret = eval { + unless (-f $config) { + mkfile($config); + open my $fh, '>', $config or + die "Can't open $config: $!\n"; + print $fh "; This file is used internally by ", + "git-svn\n" or die + "Couldn't write to $config: $!\n"; + print $fh "; You should not have to edit it\n" or + die "Couldn't write to $config: $!\n"; + close $fh or die "Couldn't close $config: $!\n"; + } + command('config', @args); + }; + my $err = $@; + if (defined $old_config) { + $ENV{GIT_CONFIG} = $old_config; + } else { + delete $ENV{GIT_CONFIG}; + } + die $err if $err; + wantarray ? @ret : $ret[0]; +} + +sub tmp_index_do { + my ($self, $sub) = @_; + my $old_index = $ENV{GIT_INDEX_FILE}; + $ENV{GIT_INDEX_FILE} = $self->{index}; + $@ = undef; + my @ret = eval { + my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#); + mkpath([$dir]) unless -d $dir; + &$sub; + }; + my $err = $@; + if (defined $old_index) { + $ENV{GIT_INDEX_FILE} = $old_index; + } else { + delete $ENV{GIT_INDEX_FILE}; + } + die $err if $err; + wantarray ? @ret : $ret[0]; +} + +sub assert_index_clean { + my ($self, $treeish) = @_; + + $self->tmp_index_do(sub { + command_noisy('read-tree', $treeish) unless -e $self->{index}; + my $x = command_oneline('write-tree'); + my ($y) = (command(qw/cat-file commit/, $treeish) =~ + /^tree ($::sha1)/mo); + return if $y eq $x; + + warn "Index mismatch: $y != $x\nrereading $treeish\n"; + unlink $self->{index} or die "unlink $self->{index}: $!\n"; + command_noisy('read-tree', $treeish); + $x = command_oneline('write-tree'); + if ($y ne $x) { + ::fatal "trees ($treeish) $y != $x\n", + "Something is seriously wrong..."; + } + }); +} + +sub get_commit_parents { + my ($self, $log_entry) = @_; + my (%seen, @ret, @tmp); + # legacy support for 'set-tree'; this is only used by set_tree_cb: + if (my $ip = $self->{inject_parents}) { + if (my $commit = delete $ip->{$log_entry->{revision}}) { + push @tmp, $commit; + } + } + if (my $cur = ::verify_ref($self->refname.'^0')) { + push @tmp, $cur; + } + if (my $ipd = $self->{inject_parents_dcommit}) { + if (my $commit = delete $ipd->{$log_entry->{revision}}) { + push @tmp, @$commit; + } + } + push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp); + while (my $p = shift @tmp) { + next if $seen{$p}; + $seen{$p} = 1; + push @ret, $p; + } + @ret; +} + +sub rewrite_root { + my ($self) = @_; + return $self->{-rewrite_root} if exists $self->{-rewrite_root}; + my $k = "svn-remote.$self->{repo_id}.rewriteRoot"; + my $rwr = eval { command_oneline(qw/config --get/, $k) }; + if ($rwr) { + $rwr =~ s#/+$##; + if ($rwr !~ m#^[a-z\+]+://#) { + die "$rwr is not a valid URL (key: $k)\n"; + } + } + $self->{-rewrite_root} = $rwr; +} + +sub rewrite_uuid { + my ($self) = @_; + return $self->{-rewrite_uuid} if exists $self->{-rewrite_uuid}; + my $k = "svn-remote.$self->{repo_id}.rewriteUUID"; + my $rwid = eval { command_oneline(qw/config --get/, $k) }; + if ($rwid) { + $rwid =~ s#/+$##; + if ($rwid !~ m#^[a-f0-9]{8}-(?:[a-f0-9]{4}-){3}[a-f0-9]{12}$#) { + die "$rwid is not a valid UUID (key: $k)\n"; + } + } + $self->{-rewrite_uuid} = $rwid; +} + +sub metadata_url { + my ($self) = @_; + ($self->rewrite_root || $self->{url}) . + (length $self->{path} ? '/' . $self->{path} : ''); +} + +sub full_url { + my ($self) = @_; + $self->{url} . (length $self->{path} ? '/' . $self->{path} : ''); +} + +sub full_pushurl { + my ($self) = @_; + if ($self->{pushurl}) { + return $self->{pushurl} . (length $self->{path} ? '/' . + $self->{path} : ''); + } else { + return $self->full_url; + } +} + +sub set_commit_header_env { + my ($log_entry) = @_; + my %env; + foreach my $ned (qw/NAME EMAIL DATE/) { + foreach my $ac (qw/AUTHOR COMMITTER/) { + $env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"}; + } + } + + $ENV{GIT_AUTHOR_NAME} = $log_entry->{name}; + $ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email}; + $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date}; + + $ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name}) + ? $log_entry->{commit_name} + : $log_entry->{name}; + $ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email}) + ? $log_entry->{commit_email} + : $log_entry->{email}; + \%env; +} + +sub restore_commit_header_env { + my ($env) = @_; + foreach my $ned (qw/NAME EMAIL DATE/) { + foreach my $ac (qw/AUTHOR COMMITTER/) { + my $k = "GIT_${ac}_${ned}"; + if (defined $env->{$k}) { + $ENV{$k} = $env->{$k}; + } else { + delete $ENV{$k}; + } + } + } +} + +sub gc { + command_noisy('gc', '--auto'); +}; + +sub do_git_commit { + my ($self, $log_entry) = @_; + my $lr = $self->last_rev; + if (defined $lr && $lr >= $log_entry->{revision}) { + die "Last fetched revision of ", $self->refname, + " was r$lr, but we are about to fetch: ", + "r$log_entry->{revision}!\n"; + } + if (my $c = $self->rev_map_get($log_entry->{revision})) { + croak "$log_entry->{revision} = $c already exists! ", + "Why are we refetching it?\n"; + } + my $old_env = set_commit_header_env($log_entry); + my $tree = $log_entry->{tree}; + if (!defined $tree) { + $tree = $self->tmp_index_do(sub { + command_oneline('write-tree') }); + } + die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o; + + my @exec = ('git', 'commit-tree', $tree); + foreach ($self->get_commit_parents($log_entry)) { + push @exec, '-p', $_; + } + defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec)) + or croak $!; + binmode $msg_fh; + + # we always get UTF-8 from SVN, but we may want our commits in + # a different encoding. + if (my $enc = Git::config('i18n.commitencoding')) { + require Encode; + Encode::from_to($log_entry->{log}, 'UTF-8', $enc); + } + print $msg_fh $log_entry->{log} or croak $!; + restore_commit_header_env($old_env); + unless ($self->no_metadata) { + print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n" + or croak $!; + } + $msg_fh->flush == 0 or croak $!; + close $msg_fh or croak $!; + chomp(my $commit = do { local $/; <$out_fh> }); + close $out_fh or croak $!; + waitpid $pid, 0; + croak $? if $?; + if ($commit !~ /^$::sha1$/o) { + die "Failed to commit, invalid sha1: $commit\n"; + } + + $self->rev_map_set($log_entry->{revision}, $commit, 1); + + $self->{last_rev} = $log_entry->{revision}; + $self->{last_commit} = $commit; + print "r$log_entry->{revision}" unless $::_q > 1; + if (defined $log_entry->{svm_revision}) { + print " (\@$log_entry->{svm_revision})" unless $::_q > 1; + $self->rev_map_set($log_entry->{svm_revision}, $commit, + 0, $self->svm_uuid); + } + print " = $commit ($self->{ref_id})\n" unless $::_q > 1; + if (--$_gc_nr == 0) { + $_gc_nr = $_gc_period; + gc(); + } + return $commit; +} + +sub match_paths { + my ($self, $paths, $r) = @_; + return 1 if $self->{path} eq ''; + if (my $path = $paths->{"/$self->{path}"}) { + return ($path->{action} eq 'D') ? 0 : 1; + } + $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//; + if (grep /$self->{path_regex}/, keys %$paths) { + return 1; + } + my $c = ''; + foreach (split m#/#, $self->{path}) { + $c .= "/$_"; + next unless ($paths->{$c} && + ($paths->{$c}->{action} =~ /^[AR]$/)); + if ($self->ra->check_path($self->{path}, $r) == + $SVN::Node::dir) { + return 1; + } + } + return 0; +} + +sub find_parent_branch { + my ($self, $paths, $rev) = @_; + return undef unless $self->follow_parent; + unless (defined $paths) { + my $err_handler = $SVN::Error::handler; + $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs; + $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1, + sub { $paths = $_[0] }); + $SVN::Error::handler = $err_handler; + } + return undef unless defined $paths; + + # look for a parent from another branch: + my @b_path_components = split m#/#, $self->{path}; + my @a_path_components; + my $i; + while (@b_path_components) { + $i = $paths->{'/'.join('/', @b_path_components)}; + last if $i && defined $i->{copyfrom_path}; + unshift(@a_path_components, pop(@b_path_components)); + } + return undef unless defined $i && defined $i->{copyfrom_path}; + my $branch_from = $i->{copyfrom_path}; + if (@a_path_components) { + print STDERR "branch_from: $branch_from => "; + $branch_from .= '/'.join('/', @a_path_components); + print STDERR $branch_from, "\n"; + } + my $r = $i->{copyfrom_rev}; + my $repos_root = $self->ra->{repos_root}; + my $url = $self->ra->{url}; + my $new_url = $url . $branch_from; + print STDERR "Found possible branch point: ", + "$new_url => ", $self->full_url, ", $r\n" + unless $::_q > 1; + $branch_from =~ s#^/##; + my $gs = $self->other_gs($new_url, $url, + $branch_from, $r, $self->{ref_id}); + my ($r0, $parent) = $gs->find_rev_before($r, 1); + { + my ($base, $head); + if (!defined $r0 || !defined $parent) { + ($base, $head) = parse_revision_argument(0, $r); + } else { + if ($r0 < $r) { + $gs->ra->get_log([$gs->{path}], $r0 + 1, $r, 1, + 0, 1, sub { $base = $_[1] - 1 }); + } + } + if (defined $base && $base <= $r) { + $gs->fetch($base, $r); + } + ($r0, $parent) = $gs->find_rev_before($r, 1); + } + if (defined $r0 && defined $parent) { + print STDERR "Found branch parent: ($self->{ref_id}) $parent\n" + unless $::_q > 1; + my $ed; + if ($self->ra->can_do_switch) { + $self->assert_index_clean($parent); + print STDERR "Following parent with do_switch\n" + unless $::_q > 1; + # do_switch works with svn/trunk >= r22312, but that + # is not included with SVN 1.4.3 (the latest version + # at the moment), so we can't rely on it + $self->{last_rev} = $r0; + $self->{last_commit} = $parent; + $ed = SVN::Git::Fetcher->new($self, $gs->{path}); + $gs->ra->gs_do_switch($r0, $rev, $gs, + $self->full_url, $ed) + or die "SVN connection failed somewhere...\n"; + } elsif ($self->ra->trees_match($new_url, $r0, + $self->full_url, $rev)) { + print STDERR "Trees match:\n", + " $new_url\@$r0\n", + " ${\$self->full_url}\@$rev\n", + "Following parent with no changes\n" + unless $::_q > 1; + $self->tmp_index_do(sub { + command_noisy('read-tree', $parent); + }); + $self->{last_commit} = $parent; + } else { + print STDERR "Following parent with do_update\n" + unless $::_q > 1; + $ed = SVN::Git::Fetcher->new($self); + $self->ra->gs_do_update($rev, $rev, $self, $ed) + or die "SVN connection failed somewhere...\n"; + } + print STDERR "Successfully followed parent\n" unless $::_q > 1; + return $self->make_log_entry($rev, [$parent], $ed); + } + return undef; +} + +sub do_fetch { + my ($self, $paths, $rev) = @_; + my $ed; + my ($last_rev, @parents); + if (my $lc = $self->last_commit) { + # we can have a branch that was deleted, then re-added + # under the same name but copied from another path, in + # which case we'll have multiple parents (we don't + # want to break the original ref, nor lose copypath info): + if (my $log_entry = $self->find_parent_branch($paths, $rev)) { + push @{$log_entry->{parents}}, $lc; + return $log_entry; + } + $ed = SVN::Git::Fetcher->new($self); + $last_rev = $self->{last_rev}; + $ed->{c} = $lc; + @parents = ($lc); + } else { + $last_rev = $rev; + if (my $log_entry = $self->find_parent_branch($paths, $rev)) { + return $log_entry; + } + $ed = SVN::Git::Fetcher->new($self); + } + unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) { + die "SVN connection failed somewhere...\n"; + } + $self->make_log_entry($rev, \@parents, $ed); +} + +sub mkemptydirs { + my ($self, $r) = @_; + + sub scan { + my ($r, $empty_dirs, $line) = @_; + if (defined $r && $line =~ /^r(\d+)$/) { + return 0 if $1 > $r; + } elsif ($line =~ /^ \+empty_dir: (.+)$/) { + $empty_dirs->{$1} = 1; + } elsif ($line =~ /^ \-empty_dir: (.+)$/) { + my @d = grep {m[^\Q$1\E(/|$)]} (keys %$empty_dirs); + delete @$empty_dirs{@d}; + } + 1; # continue + }; + + my %empty_dirs = (); + my $gz_file = "$self->{dir}/unhandled.log.gz"; + if (-f $gz_file) { + if (!$can_compress) { + warn "Compress::Zlib could not be found; ", + "empty directories in $gz_file will not be read\n"; + } else { + my $gz = Compress::Zlib::gzopen($gz_file, "rb") or + die "Unable to open $gz_file: $!\n"; + my $line; + while ($gz->gzreadline($line) > 0) { + scan($r, \%empty_dirs, $line) or last; + } + $gz->gzclose; + } + } + + if (open my $fh, '<', "$self->{dir}/unhandled.log") { + binmode $fh or croak "binmode: $!"; + while (<$fh>) { + scan($r, \%empty_dirs, $_) or last; + } + close $fh; + } + + my $strip = qr/\A\Q$self->{path}\E(?:\/|$)/; + foreach my $d (sort keys %empty_dirs) { + $d = uri_decode($d); + $d =~ s/$strip//; + next unless length($d); + next if -d $d; + if (-e $d) { + warn "$d exists but is not a directory\n"; + } else { + print "creating empty directory: $d\n"; + mkpath([$d]); + } + } +} + +sub get_untracked { + my ($self, $ed) = @_; + my @out; + my $h = $ed->{empty}; + foreach (sort keys %$h) { + my $act = $h->{$_} ? '+empty_dir' : '-empty_dir'; + push @out, " $act: " . uri_encode($_); + warn "W: $act: $_\n"; + } + foreach my $t (qw/dir_prop file_prop/) { + $h = $ed->{$t} or next; + foreach my $path (sort keys %$h) { + my $ppath = $path eq '' ? '.' : $path; + foreach my $prop (sort keys %{$h->{$path}}) { + next if $SKIP_PROP{$prop}; + my $v = $h->{$path}->{$prop}; + my $t_ppath_prop = "$t: " . + uri_encode($ppath) . ' ' . + uri_encode($prop); + if (defined $v) { + push @out, " +$t_ppath_prop " . + uri_encode($v); + } else { + push @out, " -$t_ppath_prop"; + } + } + } + } + foreach my $t (qw/absent_file absent_directory/) { + $h = $ed->{$t} or next; + foreach my $parent (sort keys %$h) { + foreach my $path (sort @{$h->{$parent}}) { + push @out, " $t: " . + uri_encode("$parent/$path"); + warn "W: $t: $parent/$path ", + "Insufficient permissions?\n"; + } + } + } + \@out; +} + +# parse_svn_date(DATE) +# -------------------- +# Given a date (in UTC) from Subversion, return a string in the format +# "<TZ Offset> <local date/time>" that Git will use. +# +# By default the parsed date will be in UTC; if $Git::SVN::_localtime +# is true we'll convert it to the local timezone instead. +sub parse_svn_date { + my $date = shift || return '+0000 1970-01-01 00:00:00'; + my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T + (\d\d)\:(\d\d)\:(\d\d)\.\d*Z$/x) or + croak "Unable to parse date: $date\n"; + my $parsed_date; # Set next. + + if ($Git::SVN::_localtime) { + # Translate the Subversion datetime to an epoch time. + # Begin by switching ourselves to $date's timezone, UTC. + my $old_env_TZ = $ENV{TZ}; + $ENV{TZ} = 'UTC'; + + my $epoch_in_UTC = + POSIX::strftime('%s', $S, $M, $H, $d, $m - 1, $Y - 1900); + + # Determine our local timezone (including DST) at the + # time of $epoch_in_UTC. $Git::SVN::Log::TZ stored the + # value of TZ, if any, at the time we were run. + if (defined $Git::SVN::Log::TZ) { + $ENV{TZ} = $Git::SVN::Log::TZ; + } else { + delete $ENV{TZ}; + } + + my $our_TZ = + POSIX::strftime('%Z', $S, $M, $H, $d, $m - 1, $Y - 1900); + + # This converts $epoch_in_UTC into our local timezone. + my ($sec, $min, $hour, $mday, $mon, $year, + $wday, $yday, $isdst) = localtime($epoch_in_UTC); + + $parsed_date = sprintf('%s %04d-%02d-%02d %02d:%02d:%02d', + $our_TZ, $year + 1900, $mon + 1, + $mday, $hour, $min, $sec); + + # Reset us to the timezone in effect when we entered + # this routine. + if (defined $old_env_TZ) { + $ENV{TZ} = $old_env_TZ; + } else { + delete $ENV{TZ}; + } + } else { + $parsed_date = "+0000 $Y-$m-$d $H:$M:$S"; + } + + return $parsed_date; +} + +sub other_gs { + my ($self, $new_url, $url, + $branch_from, $r, $old_ref_id) = @_; + my $gs = Git::SVN->find_by_url($new_url, $url, $branch_from); + unless ($gs) { + my $ref_id = $old_ref_id; + $ref_id =~ s/\@\d+-*$//; + $ref_id .= "\@$r"; + # just grow a tail if we're not unique enough :x + $ref_id .= '-' while find_ref($ref_id); + my ($u, $p, $repo_id) = ($new_url, '', $ref_id); + if ($u =~ s#^\Q$url\E(/|$)##) { + $p = $u; + $u = $url; + $repo_id = $self->{repo_id}; + } + while (1) { + # It is possible to tag two different subdirectories at + # the same revision. If the url for an existing ref + # does not match, we must either find a ref with a + # matching url or create a new ref by growing a tail. + $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1); + my (undef, $max_commit) = $gs->rev_map_max(1); + last if (!$max_commit); + my ($url) = ::cmt_metadata($max_commit); + last if ($url eq $gs->metadata_url); + $ref_id .= '-'; + } + print STDERR "Initializing parent: $ref_id\n" unless $::_q > 1; + } + $gs +} + +sub call_authors_prog { + my ($orig_author) = @_; + $orig_author = command_oneline('rev-parse', '--sq-quote', $orig_author); + my $author = `$::_authors_prog $orig_author`; + if ($? != 0) { + die "$::_authors_prog failed with exit code $?\n" + } + if ($author =~ /^\s*(.+?)\s*<(.*)>\s*$/) { + my ($name, $email) = ($1, $2); + $email = undef if length $2 == 0; + return [$name, $email]; + } else { + die "Author: $orig_author: $::_authors_prog returned " + . "invalid author format: $author\n"; + } +} + +sub check_author { + my ($author) = @_; + if (!defined $author || length $author == 0) { + $author = '(no author)'; + } + if (!defined $::users{$author}) { + if (defined $::_authors_prog) { + $::users{$author} = call_authors_prog($author); + } elsif (defined $::_authors) { + die "Author: $author not defined in $::_authors file\n"; + } + } + $author; +} + +sub find_extra_svk_parents { + my ($self, $ed, $tickets, $parents) = @_; + # aha! svk:merge property changed... + my @tickets = split "\n", $tickets; + my @known_parents; + for my $ticket ( @tickets ) { + my ($uuid, $path, $rev) = split /:/, $ticket; + if ( $uuid eq $self->ra_uuid ) { + my $url = $self->{url}; + my $repos_root = $url; + my $branch_from = $path; + $branch_from =~ s{^/}{}; + my $gs = $self->other_gs($repos_root."/".$branch_from, + $url, + $branch_from, + $rev, + $self->{ref_id}); + if ( my $commit = $gs->rev_map_get($rev, $uuid) ) { + # wahey! we found it, but it might be + # an old one (!) + push @known_parents, [ $rev, $commit ]; + } + } + } + # Ordering matters; highest-numbered commit merge tickets + # first, as they may account for later merge ticket additions + # or changes. + @known_parents = map {$_->[1]} sort {$b->[0] <=> $a->[0]} @known_parents; + for my $parent ( @known_parents ) { + my @cmd = ('rev-list', $parent, map { "^$_" } @$parents ); + my ($msg_fh, $ctx) = command_output_pipe(@cmd); + my $new; + while ( <$msg_fh> ) { + $new=1;last; + } + command_close_pipe($msg_fh, $ctx); + if ( $new ) { + print STDERR + "Found merge parent (svk:merge ticket): $parent\n"; + push @$parents, $parent; + } + } +} + +sub lookup_svn_merge { + my $uuid = shift; + my $url = shift; + my $merge = shift; + + my ($source, $revs) = split ":", $merge; + my $path = $source; + $path =~ s{^/}{}; + my $gs = Git::SVN->find_by_url($url.$source, $url, $path); + if ( !$gs ) { + warn "Couldn't find revmap for $url$source\n"; + return; + } + my @ranges = split ",", $revs; + my ($tip, $tip_commit); + my @merged_commit_ranges; + # find the tip + for my $range ( @ranges ) { + my ($bottom, $top) = split "-", $range; + $top ||= $bottom; + my $bottom_commit = $gs->find_rev_after( $bottom, 1, $top ); + my $top_commit = $gs->find_rev_before( $top, 1, $bottom ); + + unless ($top_commit and $bottom_commit) { + warn "W:unknown path/rev in svn:mergeinfo " + ."dirprop: $source:$range\n"; + next; + } + + if (scalar(command('rev-parse', "$bottom_commit^@"))) { + push @merged_commit_ranges, + "$bottom_commit^..$top_commit"; + } else { + push @merged_commit_ranges, "$top_commit"; + } + + if ( !defined $tip or $top > $tip ) { + $tip = $top; + $tip_commit = $top_commit; + } + } + return ($tip_commit, @merged_commit_ranges); +} + +sub _rev_list { + my ($msg_fh, $ctx) = command_output_pipe( + "rev-list", @_, + ); + my @rv; + while ( <$msg_fh> ) { + chomp; + push @rv, $_; + } + command_close_pipe($msg_fh, $ctx); + @rv; +} + +sub check_cherry_pick { + my $base = shift; + my $tip = shift; + my $parents = shift; + my @ranges = @_; + my %commits = map { $_ => 1 } + _rev_list("--no-merges", $tip, "--not", $base, @$parents, "--"); + for my $range ( @ranges ) { + delete @commits{_rev_list($range, "--")}; + } + for my $commit (keys %commits) { + if (has_no_changes($commit)) { + delete $commits{$commit}; + } + } + return (keys %commits); +} + +sub has_no_changes { + my $commit = shift; + + my @revs = split / /, command_oneline( + qw(rev-list --parents -1 -m), $commit); + + # Commits with no parents, e.g. the start of a partial branch, + # have changes by definition. + return 1 if (@revs < 2); + + # Commits with multiple parents, e.g a merge, have no changes + # by definition. + return 0 if (@revs > 2); + + return (command_oneline("rev-parse", "$commit^{tree}") eq + command_oneline("rev-parse", "$commit~1^{tree}")); +} + +# The GIT_DIR environment variable is not always set until after the command +# line arguments are processed, so we can't memoize in a BEGIN block. +{ + my $memoized = 0; + + sub memoize_svn_mergeinfo_functions { + return if $memoized; + $memoized = 1; + + my $cache_path = "$ENV{GIT_DIR}/svn/.caches/"; + mkpath([$cache_path]) unless -d $cache_path; + + tie my %lookup_svn_merge_cache => 'Memoize::Storable', + "$cache_path/lookup_svn_merge.db", 'nstore'; + memoize 'lookup_svn_merge', + SCALAR_CACHE => 'FAULT', + LIST_CACHE => ['HASH' => \%lookup_svn_merge_cache], + ; + + tie my %check_cherry_pick_cache => 'Memoize::Storable', + "$cache_path/check_cherry_pick.db", 'nstore'; + memoize 'check_cherry_pick', + SCALAR_CACHE => 'FAULT', + LIST_CACHE => ['HASH' => \%check_cherry_pick_cache], + ; + + tie my %has_no_changes_cache => 'Memoize::Storable', + "$cache_path/has_no_changes.db", 'nstore'; + memoize 'has_no_changes', + SCALAR_CACHE => ['HASH' => \%has_no_changes_cache], + LIST_CACHE => 'FAULT', + ; + } + + sub unmemoize_svn_mergeinfo_functions { + return if not $memoized; + $memoized = 0; + + Memoize::unmemoize 'lookup_svn_merge'; + Memoize::unmemoize 'check_cherry_pick'; + Memoize::unmemoize 'has_no_changes'; + } + + Memoize::memoize 'Git::SVN::repos_root'; +} + +END { + # Force cache writeout explicitly instead of waiting for + # global destruction to avoid segfault in Storable: + # http://rt.cpan.org/Public/Bug/Display.html?id=36087 + unmemoize_svn_mergeinfo_functions(); +} + +sub parents_exclude { + my $parents = shift; + my @commits = @_; + return unless @commits; + + my @excluded; + my $excluded; + do { + my @cmd = ('rev-list', "-1", @commits, "--not", @$parents ); + $excluded = command_oneline(@cmd); + if ( $excluded ) { + my @new; + my $found; + for my $commit ( @commits ) { + if ( $commit eq $excluded ) { + push @excluded, $commit; + $found++; + last; + } + else { + push @new, $commit; + } + } + die "saw commit '$excluded' in rev-list output, " + ."but we didn't ask for that commit (wanted: @commits --not @$parents)" + unless $found; + @commits = @new; + } + } + while ($excluded and @commits); + + return @excluded; +} + + +# note: this function should only be called if the various dirprops +# have actually changed +sub find_extra_svn_parents { + my ($self, $ed, $mergeinfo, $parents) = @_; + # aha! svk:merge property changed... + + memoize_svn_mergeinfo_functions(); + + # We first search for merged tips which are not in our + # history. Then, we figure out which git revisions are in + # that tip, but not this revision. If all of those revisions + # are now marked as merge, we can add the tip as a parent. + my @merges = split "\n", $mergeinfo; + my @merge_tips; + my $url = $self->{url}; + my $uuid = $self->ra_uuid; + my %ranges; + for my $merge ( @merges ) { + my ($tip_commit, @ranges) = + lookup_svn_merge( $uuid, $url, $merge ); + unless (!$tip_commit or + grep { $_ eq $tip_commit } @$parents ) { + push @merge_tips, $tip_commit; + $ranges{$tip_commit} = \@ranges; + } else { + push @merge_tips, undef; + } + } + + my %excluded = map { $_ => 1 } + parents_exclude($parents, grep { defined } @merge_tips); + + # check merge tips for new parents + my @new_parents; + for my $merge_tip ( @merge_tips ) { + my $spec = shift @merges; + next unless $merge_tip and $excluded{$merge_tip}; + + my $ranges = $ranges{$merge_tip}; + + # check out 'new' tips + my $merge_base; + eval { + $merge_base = command_oneline( + "merge-base", + @$parents, $merge_tip, + ); + }; + if ($@) { + die "An error occurred during merge-base" + unless $@->isa("Git::Error::Command"); + + warn "W: Cannot find common ancestor between ". + "@$parents and $merge_tip. Ignoring merge info.\n"; + next; + } + + # double check that there are no missing non-merge commits + my (@incomplete) = check_cherry_pick( + $merge_base, $merge_tip, + $parents, + @$ranges, + ); + + if ( @incomplete ) { + warn "W:svn cherry-pick ignored ($spec) - missing " + .@incomplete." commit(s) (eg $incomplete[0])\n"; + } else { + warn + "Found merge parent (svn:mergeinfo prop): ", + $merge_tip, "\n"; + push @new_parents, $merge_tip; + } + } + + # cater for merges which merge commits from multiple branches + if ( @new_parents > 1 ) { + for ( my $i = 0; $i <= $#new_parents; $i++ ) { + for ( my $j = 0; $j <= $#new_parents; $j++ ) { + next if $i == $j; + next unless $new_parents[$i]; + next unless $new_parents[$j]; + my $revs = command_oneline( + "rev-list", "-1", + "$new_parents[$i]..$new_parents[$j]", + ); + if ( !$revs ) { + undef($new_parents[$j]); + } + } + } + } + push @$parents, grep { defined } @new_parents; +} + +sub make_log_entry { + my ($self, $rev, $parents, $ed) = @_; + my $untracked = $self->get_untracked($ed); + + my @parents = @$parents; + my $ps = $ed->{path_strip} || ""; + for my $path ( grep { m/$ps/ } %{$ed->{dir_prop}} ) { + my $props = $ed->{dir_prop}{$path}; + if ( $props->{"svk:merge"} ) { + $self->find_extra_svk_parents + ($ed, $props->{"svk:merge"}, \@parents); + } + if ( $props->{"svn:mergeinfo"} ) { + $self->find_extra_svn_parents + ($ed, + $props->{"svn:mergeinfo"}, + \@parents); + } + } + + open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!; + print $un "r$rev\n" or croak $!; + print $un $_, "\n" foreach @$untracked; + my %log_entry = ( parents => \@parents, revision => $rev, + log => ''); + + my $headrev; + my $logged = delete $self->{logged_rev_props}; + if (!$logged || $self->{-want_revprops}) { + my $rp = $self->ra->rev_proplist($rev); + foreach (sort keys %$rp) { + my $v = $rp->{$_}; + if (/^svn:(author|date|log)$/) { + $log_entry{$1} = $v; + } elsif ($_ eq 'svm:headrev') { + $headrev = $v; + } else { + print $un " rev_prop: ", uri_encode($_), ' ', + uri_encode($v), "\n"; + } + } + } else { + map { $log_entry{$_} = $logged->{$_} } keys %$logged; + } + close $un or croak $!; + + $log_entry{date} = parse_svn_date($log_entry{date}); + $log_entry{log} .= "\n"; + my $author = $log_entry{author} = check_author($log_entry{author}); + my ($name, $email) = defined $::users{$author} ? @{$::users{$author}} + : ($author, undef); + + my ($commit_name, $commit_email) = ($name, $email); + if ($_use_log_author) { + my $name_field; + if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) { + $name_field = $1; + } elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) { + $name_field = $1; + } + if (!defined $name_field) { + if (!defined $email) { + $email = $name; + } + } elsif ($name_field =~ /(.*?)\s+<(.*)>/) { + ($name, $email) = ($1, $2); + } elsif ($name_field =~ /(.*)@/) { + ($name, $email) = ($1, $name_field); + } else { + ($name, $email) = ($name_field, $name_field); + } + } + if (defined $headrev && $self->use_svm_props) { + if ($self->rewrite_root) { + die "Can't have both 'useSvmProps' and 'rewriteRoot' ", + "options set!\n"; + } + if ($self->rewrite_uuid) { + die "Can't have both 'useSvmProps' and 'rewriteUUID' ", + "options set!\n"; + } + my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$}i; + # we don't want "SVM: initializing mirror for junk" ... + return undef if $r == 0; + my $svm = $self->svm; + if ($uuid ne $svm->{uuid}) { + die "UUID mismatch on SVM path:\n", + "expected: $svm->{uuid}\n", + " got: $uuid\n"; + } + my $full_url = $self->full_url; + $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or + die "Failed to replace '$svm->{replace}' with ", + "'$svm->{source}' in $full_url\n"; + # throw away username for storing in records + remove_username($full_url); + $log_entry{metadata} = "$full_url\@$r $uuid"; + $log_entry{svm_revision} = $r; + $email ||= "$author\@$uuid"; + $commit_email ||= "$author\@$uuid"; + } elsif ($self->use_svnsync_props) { + my $full_url = $self->svnsync->{url}; + $full_url .= "/$self->{path}" if length $self->{path}; + remove_username($full_url); + my $uuid = $self->svnsync->{uuid}; + $log_entry{metadata} = "$full_url\@$rev $uuid"; + $email ||= "$author\@$uuid"; + $commit_email ||= "$author\@$uuid"; + } else { + my $url = $self->metadata_url; + remove_username($url); + my $uuid = $self->rewrite_uuid || $self->ra->get_uuid; + $log_entry{metadata} = "$url\@$rev " . $uuid; + $email ||= "$author\@" . $uuid; + $commit_email ||= "$author\@" . $uuid; + } + $log_entry{name} = $name; + $log_entry{email} = $email; + $log_entry{commit_name} = $commit_name; + $log_entry{commit_email} = $commit_email; + \%log_entry; +} + +sub fetch { + my ($self, $min_rev, $max_rev, @parents) = @_; + my ($last_rev, $last_commit) = $self->last_rev_commit; + my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev); + $self->ra->gs_fetch_loop_common($base, $head, [$self]); +} + +sub set_tree_cb { + my ($self, $log_entry, $tree, $rev, $date, $author) = @_; + $self->{inject_parents} = { $rev => $tree }; + $self->fetch(undef, undef); +} + +sub set_tree { + my ($self, $tree) = (shift, shift); + my $log_entry = ::get_commit_entry($tree); + unless ($self->{last_rev}) { + ::fatal("Must have an existing revision to commit"); + } + my %ed_opts = ( r => $self->{last_rev}, + log => $log_entry->{log}, + ra => $self->ra, + tree_a => $self->{last_commit}, + tree_b => $tree, + editor_cb => sub { + $self->set_tree_cb($log_entry, $tree, @_) }, + svn_path => $self->{path} ); + if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) { + print "No changes\nr$self->{last_rev} = $tree\n"; + } +} + +sub rebuild_from_rev_db { + my ($self, $path) = @_; + my $r = -1; + open my $fh, '<', $path or croak "open: $!"; + binmode $fh or croak "binmode: $!"; + while (<$fh>) { + length($_) == 41 or croak "inconsistent size in ($_) != 41"; + chomp($_); + ++$r; + next if $_ eq ('0' x 40); + $self->rev_map_set($r, $_); + print "r$r = $_\n"; + } + close $fh or croak "close: $!"; + unlink $path or croak "unlink: $!"; +} + +sub rebuild { + my ($self) = @_; + my $map_path = $self->map_path; + my $partial = (-e $map_path && ! -z $map_path); + return unless ::verify_ref($self->refname.'^0'); + if (!$partial && ($self->use_svm_props || $self->no_metadata)) { + my $rev_db = $self->rev_db_path; + $self->rebuild_from_rev_db($rev_db); + if ($self->use_svm_props) { + my $svm_rev_db = $self->rev_db_path($self->svm_uuid); + $self->rebuild_from_rev_db($svm_rev_db); + } + $self->unlink_rev_db_symlink; + return; + } + print "Rebuilding $map_path ...\n" if (!$partial); + my ($base_rev, $head) = ($partial ? $self->rev_map_max_norebuild(1) : + (undef, undef)); + my ($log, $ctx) = + command_output_pipe(qw/rev-list --pretty=raw --no-color --reverse/, + ($head ? "$head.." : "") . $self->refname, + '--'); + my $metadata_url = $self->metadata_url; + remove_username($metadata_url); + my $svn_uuid = $self->rewrite_uuid || $self->ra_uuid; + my $c; + while (<$log>) { + if ( m{^commit ($::sha1)$} ) { + $c = $1; + next; + } + next unless s{^\s*(git-svn-id:)}{$1}; + my ($url, $rev, $uuid) = ::extract_metadata($_); + remove_username($url); + + # ignore merges (from set-tree) + next if (!defined $rev || !$uuid); + + # if we merged or otherwise started elsewhere, this is + # how we break out of it + if (($uuid ne $svn_uuid) || + ($metadata_url && $url && ($url ne $metadata_url))) { + next; + } + if ($partial && $head) { + print "Partial-rebuilding $map_path ...\n"; + print "Currently at $base_rev = $head\n"; + $head = undef; + } + + $self->rev_map_set($rev, $c); + print "r$rev = $c\n"; + } + command_close_pipe($log, $ctx); + print "Done rebuilding $map_path\n" if (!$partial || !$head); + my $rev_db_path = $self->rev_db_path; + if (-f $self->rev_db_path) { + unlink $self->rev_db_path or croak "unlink: $!"; + } + $self->unlink_rev_db_symlink; +} + +# rev_map: +# Tie::File seems to be prone to offset errors if revisions get sparse, +# it's not that fast, either. Tie::File is also not in Perl 5.6. So +# one of my favorite modules is out :< Next up would be one of the DBM +# modules, but I'm not sure which is most portable... +# +# This is the replacement for the rev_db format, which was too big +# and inefficient for large repositories with a lot of sparse history +# (mainly tags) +# +# The format is this: +# - 24 bytes for every record, +# * 4 bytes for the integer representing an SVN revision number +# * 20 bytes representing the sha1 of a git commit +# - No empty padding records like the old format +# (except the last record, which can be overwritten) +# - new records are written append-only since SVN revision numbers +# increase monotonically +# - lookups on SVN revision number are done via a binary search +# - Piping the file to xxd -c24 is a good way of dumping it for +# viewing or editing (piped back through xxd -r), should the need +# ever arise. +# - The last record can be padding revision with an all-zero sha1 +# This is used to optimize fetch performance when using multiple +# "fetch" directives in .git/config +# +# These files are disposable unless noMetadata or useSvmProps is set + +sub _rev_map_set { + my ($fh, $rev, $commit) = @_; + + binmode $fh or croak "binmode: $!"; + my $size = (stat($fh))[7]; + ($size % 24) == 0 or croak "inconsistent size: $size"; + + my $wr_offset = 0; + if ($size > 0) { + sysseek($fh, -24, SEEK_END) or croak "seek: $!"; + my $read = sysread($fh, my $buf, 24) or croak "read: $!"; + $read == 24 or croak "read only $read bytes (!= 24)"; + my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf); + if ($last_commit eq ('0' x40)) { + if ($size >= 48) { + sysseek($fh, -48, SEEK_END) or croak "seek: $!"; + $read = sysread($fh, $buf, 24) or + croak "read: $!"; + $read == 24 or + croak "read only $read bytes (!= 24)"; + ($last_rev, $last_commit) = + unpack(rev_map_fmt, $buf); + if ($last_commit eq ('0' x40)) { + croak "inconsistent .rev_map\n"; + } + } + if ($last_rev >= $rev) { + croak "last_rev is higher!: $last_rev >= $rev"; + } + $wr_offset = -24; + } + } + sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!"; + syswrite($fh, pack(rev_map_fmt, $rev, $commit), 24) == 24 or + croak "write: $!"; +} + +sub _rev_map_reset { + my ($fh, $rev, $commit) = @_; + my $c = _rev_map_get($fh, $rev); + $c eq $commit or die "_rev_map_reset(@_) commit $c does not match!\n"; + my $offset = sysseek($fh, 0, SEEK_CUR) or croak "seek: $!"; + truncate $fh, $offset or croak "truncate: $!"; +} + +sub mkfile { + my ($path) = @_; + unless (-e $path) { + my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#); + mkpath([$dir]) unless -d $dir; + open my $fh, '>>', $path or die "Couldn't create $path: $!\n"; + close $fh or die "Couldn't close (create) $path: $!\n"; + } +} + +sub rev_map_set { + my ($self, $rev, $commit, $update_ref, $uuid) = @_; + defined $commit or die "missing arg3\n"; + length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n"; + my $db = $self->map_path($uuid); + my $db_lock = "$db.lock"; + my $sig; + $update_ref ||= 0; + if ($update_ref) { + $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} = + $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] }; + } + mkfile($db); + + $LOCKFILES{$db_lock} = 1; + my $sync; + # both of these options make our .rev_db file very, very important + # and we can't afford to lose it because rebuild() won't work + if ($self->use_svm_props || $self->no_metadata) { + $sync = 1; + copy($db, $db_lock) or die "rev_map_set(@_): ", + "Failed to copy: ", + "$db => $db_lock ($!)\n"; + } else { + rename $db, $db_lock or die "rev_map_set(@_): ", + "Failed to rename: ", + "$db => $db_lock ($!)\n"; + } + + sysopen(my $fh, $db_lock, O_RDWR | O_CREAT) + or croak "Couldn't open $db_lock: $!\n"; + $update_ref eq 'reset' ? _rev_map_reset($fh, $rev, $commit) : + _rev_map_set($fh, $rev, $commit); + if ($sync) { + $fh->flush or die "Couldn't flush $db_lock: $!\n"; + $fh->sync or die "Couldn't sync $db_lock: $!\n"; + } + close $fh or croak $!; + if ($update_ref) { + $_head = $self; + my $note = ""; + $note = " ($update_ref)" if ($update_ref !~ /^\d*$/); + command_noisy('update-ref', '-m', "r$rev$note", + $self->refname, $commit); + } + rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ", + "$db_lock => $db ($!)\n"; + delete $LOCKFILES{$db_lock}; + if ($update_ref) { + $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} = + $SIG{USR1} = $SIG{USR2} = 'DEFAULT'; + kill $sig, $$ if defined $sig; + } +} + +# If want_commit, this will return an array of (rev, commit) where +# commit _must_ be a valid commit in the archive. +# Otherwise, it'll return the max revision (whether or not the +# commit is valid or just a 0x40 placeholder). +sub rev_map_max { + my ($self, $want_commit) = @_; + $self->rebuild; + my ($r, $c) = $self->rev_map_max_norebuild($want_commit); + $want_commit ? ($r, $c) : $r; +} + +sub rev_map_max_norebuild { + my ($self, $want_commit) = @_; + my $map_path = $self->map_path; + stat $map_path or return $want_commit ? (0, undef) : 0; + sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!"; + binmode $fh or croak "binmode: $!"; + my $size = (stat($fh))[7]; + ($size % 24) == 0 or croak "inconsistent size: $size"; + + if ($size == 0) { + close $fh or croak "close: $!"; + return $want_commit ? (0, undef) : 0; + } + + sysseek($fh, -24, SEEK_END) or croak "seek: $!"; + sysread($fh, my $buf, 24) == 24 or croak "read: $!"; + my ($r, $c) = unpack(rev_map_fmt, $buf); + if ($want_commit && $c eq ('0' x40)) { + if ($size < 48) { + return $want_commit ? (0, undef) : 0; + } + sysseek($fh, -48, SEEK_END) or croak "seek: $!"; + sysread($fh, $buf, 24) == 24 or croak "read: $!"; + ($r, $c) = unpack(rev_map_fmt, $buf); + if ($c eq ('0'x40)) { + croak "Penultimate record is all-zeroes in $map_path"; + } + } + close $fh or croak "close: $!"; + $want_commit ? ($r, $c) : $r; +} + +sub rev_map_get { + my ($self, $rev, $uuid) = @_; + my $map_path = $self->map_path($uuid); + return undef unless -e $map_path; + + sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!"; + my $c = _rev_map_get($fh, $rev); + close($fh) or croak "close: $!"; + $c +} + +sub _rev_map_get { + my ($fh, $rev) = @_; + + binmode $fh or croak "binmode: $!"; + my $size = (stat($fh))[7]; + ($size % 24) == 0 or croak "inconsistent size: $size"; + + if ($size == 0) { + return undef; + } + + my ($l, $u) = (0, $size - 24); + my ($r, $c, $buf); + + while ($l <= $u) { + my $i = int(($l/24 + $u/24) / 2) * 24; + sysseek($fh, $i, SEEK_SET) or croak "seek: $!"; + sysread($fh, my $buf, 24) == 24 or croak "read: $!"; + my ($r, $c) = unpack(rev_map_fmt, $buf); + + if ($r < $rev) { + $l = $i + 24; + } elsif ($r > $rev) { + $u = $i - 24; + } else { # $r == $rev + return $c eq ('0' x 40) ? undef : $c; + } + } + undef; +} + +# Finds the first svn revision that exists on (if $eq_ok is true) or +# before $rev for the current branch. It will not search any lower +# than $min_rev. Returns the git commit hash and svn revision number +# if found, else (undef, undef). +sub find_rev_before { + my ($self, $rev, $eq_ok, $min_rev) = @_; + --$rev unless $eq_ok; + $min_rev ||= 1; + my $max_rev = $self->rev_map_max; + $rev = $max_rev if ($rev > $max_rev); + while ($rev >= $min_rev) { + if (my $c = $self->rev_map_get($rev)) { + return ($rev, $c); + } + --$rev; + } + return (undef, undef); +} + +# Finds the first svn revision that exists on (if $eq_ok is true) or +# after $rev for the current branch. It will not search any higher +# than $max_rev. Returns the git commit hash and svn revision number +# if found, else (undef, undef). +sub find_rev_after { + my ($self, $rev, $eq_ok, $max_rev) = @_; + ++$rev unless $eq_ok; + $max_rev ||= $self->rev_map_max; + while ($rev <= $max_rev) { + if (my $c = $self->rev_map_get($rev)) { + return ($rev, $c); + } + ++$rev; + } + return (undef, undef); +} + +sub _new { + my ($class, $repo_id, $ref_id, $path) = @_; + unless (defined $repo_id && length $repo_id) { + $repo_id = $Git::SVN::default_repo_id; + } + unless (defined $ref_id && length $ref_id) { + $_prefix = '' unless defined($_prefix); + $_[2] = $ref_id = + "refs/remotes/$_prefix$Git::SVN::default_ref_id"; + } + $_[1] = $repo_id; + my $dir = "$ENV{GIT_DIR}/svn/$ref_id"; + + # Older repos imported by us used $GIT_DIR/svn/foo instead of + # $GIT_DIR/svn/refs/remotes/foo when tracking refs/remotes/foo + if ($ref_id =~ m{^refs/remotes/(.*)}) { + my $old_dir = "$ENV{GIT_DIR}/svn/$1"; + if (-d $old_dir && ! -d $dir) { + $dir = $old_dir; + } + } + + $_[3] = $path = '' unless (defined $path); + mkpath([$dir]); + bless { + ref_id => $ref_id, dir => $dir, index => "$dir/index", + path => $path, config => "$ENV{GIT_DIR}/svn/config", + map_root => "$dir/.rev_map", repo_id => $repo_id }, $class; +} + +# for read-only access of old .rev_db formats +sub unlink_rev_db_symlink { + my ($self) = @_; + my $link = $self->rev_db_path; + $link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link"; + if (-l $link) { + unlink $link or croak "unlink: $link failed!"; + } +} + +sub rev_db_path { + my ($self, $uuid) = @_; + my $db_path = $self->map_path($uuid); + $db_path =~ s{/\.rev_map\.}{/\.rev_db\.} + or croak "map_path: $db_path does not contain '/.rev_map.' !"; + $db_path; +} + +# the new replacement for .rev_db +sub map_path { + my ($self, $uuid) = @_; + $uuid ||= $self->ra_uuid; + "$self->{map_root}.$uuid"; +} + +sub uri_encode { + my ($f) = @_; + $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg; + $f +} + +sub uri_decode { + my ($f) = @_; + $f =~ s#%([0-9a-fA-F]{2})#chr(hex($1))#eg; + $f +} + +sub remove_username { + $_[0] =~ s{^([^:]*://)[^@]+@}{$1}; +} + +package Git::SVN::Prompt; +use strict; +use warnings; +require SVN::Core; +use vars qw/$_no_auth_cache $_username/; + +sub simple { + my ($cred, $realm, $default_username, $may_save, $pool) = @_; + $may_save = undef if $_no_auth_cache; + $default_username = $_username if defined $_username; + if (defined $default_username && length $default_username) { + if (defined $realm && length $realm) { + print STDERR "Authentication realm: $realm\n"; + STDERR->flush; + } + $cred->username($default_username); + } else { + username($cred, $realm, $may_save, $pool); + } + $cred->password(_read_password("Password for '" . + $cred->username . "': ", $realm)); + $cred->may_save($may_save); + $SVN::_Core::SVN_NO_ERROR; +} + +sub ssl_server_trust { + my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_; + $may_save = undef if $_no_auth_cache; + print STDERR "Error validating server certificate for '$realm':\n"; + { + no warnings 'once'; + # All variables SVN::Auth::SSL::* are used only once, + # so we're shutting up Perl warnings about this. + if ($failures & $SVN::Auth::SSL::UNKNOWNCA) { + print STDERR " - The certificate is not issued ", + "by a trusted authority. Use the\n", + " fingerprint to validate ", + "the certificate manually!\n"; + } + if ($failures & $SVN::Auth::SSL::CNMISMATCH) { + print STDERR " - The certificate hostname ", + "does not match.\n"; + } + if ($failures & $SVN::Auth::SSL::NOTYETVALID) { + print STDERR " - The certificate is not yet valid.\n"; + } + if ($failures & $SVN::Auth::SSL::EXPIRED) { + print STDERR " - The certificate has expired.\n"; + } + if ($failures & $SVN::Auth::SSL::OTHER) { + print STDERR " - The certificate has ", + "an unknown error.\n"; + } + } # no warnings 'once' + printf STDERR + "Certificate information:\n". + " - Hostname: %s\n". + " - Valid: from %s until %s\n". + " - Issuer: %s\n". + " - Fingerprint: %s\n", + map $cert_info->$_, qw(hostname valid_from valid_until + issuer_dname fingerprint); + my $choice; +prompt: + print STDERR $may_save ? + "(R)eject, accept (t)emporarily or accept (p)ermanently? " : + "(R)eject or accept (t)emporarily? "; + STDERR->flush; + $choice = lc(substr(<STDIN> || 'R', 0, 1)); + if ($choice =~ /^t$/i) { + $cred->may_save(undef); + } elsif ($choice =~ /^r$/i) { + return -1; + } elsif ($may_save && $choice =~ /^p$/i) { + $cred->may_save($may_save); + } else { + goto prompt; + } + $cred->accepted_failures($failures); + $SVN::_Core::SVN_NO_ERROR; +} + +sub ssl_client_cert { + my ($cred, $realm, $may_save, $pool) = @_; + $may_save = undef if $_no_auth_cache; + print STDERR "Client certificate filename: "; + STDERR->flush; + chomp(my $filename = <STDIN>); + $cred->cert_file($filename); + $cred->may_save($may_save); + $SVN::_Core::SVN_NO_ERROR; +} + +sub ssl_client_cert_pw { + my ($cred, $realm, $may_save, $pool) = @_; + $may_save = undef if $_no_auth_cache; + $cred->password(_read_password("Password: ", $realm)); + $cred->may_save($may_save); + $SVN::_Core::SVN_NO_ERROR; +} + +sub username { + my ($cred, $realm, $may_save, $pool) = @_; + $may_save = undef if $_no_auth_cache; + if (defined $realm && length $realm) { + print STDERR "Authentication realm: $realm\n"; + } + my $username; + if (defined $_username) { + $username = $_username; + } else { + print STDERR "Username: "; + STDERR->flush; + chomp($username = <STDIN>); + } + $cred->username($username); + $cred->may_save($may_save); + $SVN::_Core::SVN_NO_ERROR; +} + +sub _read_password { + my ($prompt, $realm) = @_; + my $password = ''; + if (exists $ENV{GIT_ASKPASS}) { + open(PH, "-|", $ENV{GIT_ASKPASS}, $prompt); + $password = <PH>; + $password =~ s/[\012\015]//; # \n\r + close(PH); + } else { + print STDERR $prompt; + STDERR->flush; + require Term::ReadKey; + Term::ReadKey::ReadMode('noecho'); + while (defined(my $key = Term::ReadKey::ReadKey(0))) { + last if $key =~ /[\012\015]/; # \n\r + $password .= $key; + } + Term::ReadKey::ReadMode('restore'); + print STDERR "\n"; + STDERR->flush; + } + $password; +} + +package SVN::Git::Fetcher; +use vars qw/@ISA $_ignore_regex $_preserve_empty_dirs $_placeholder_filename + @deleted_gpath %added_placeholder $repo_id/; +use strict; +use warnings; +use Carp qw/croak/; +use File::Basename qw/dirname/; +use IO::File qw//; + +# file baton members: path, mode_a, mode_b, pool, fh, blob, base +sub new { + my ($class, $git_svn, $switch_path) = @_; + my $self = SVN::Delta::Editor->new; + bless $self, $class; + if (exists $git_svn->{last_commit}) { + $self->{c} = $git_svn->{last_commit}; + $self->{empty_symlinks} = + _mark_empty_symlinks($git_svn, $switch_path); + } + + # some options are read globally, but can be overridden locally + # per [svn-remote "..."] section. Command-line options will *NOT* + # override options set in an [svn-remote "..."] section + $repo_id = $git_svn->{repo_id}; + my $k = "svn-remote.$repo_id.ignore-paths"; + my $v = eval { command_oneline('config', '--get', $k) }; + $self->{ignore_regex} = $v; + + $k = "svn-remote.$repo_id.preserve-empty-dirs"; + $v = eval { command_oneline('config', '--get', '--bool', $k) }; + if ($v && $v eq 'true') { + $_preserve_empty_dirs = 1; + $k = "svn-remote.$repo_id.placeholder-filename"; + $v = eval { command_oneline('config', '--get', $k) }; + $_placeholder_filename = $v; + } + + # Load the list of placeholder files added during previous invocations. + $k = "svn-remote.$repo_id.added-placeholder"; + $v = eval { command_oneline('config', '--get-all', $k) }; + if ($_preserve_empty_dirs && $v) { + # command() prints errors to stderr, so we only call it if + # command_oneline() succeeded. + my @v = command('config', '--get-all', $k); + $added_placeholder{ dirname($_) } = $_ foreach @v; + } + + $self->{empty} = {}; + $self->{dir_prop} = {}; + $self->{file_prop} = {}; + $self->{absent_dir} = {}; + $self->{absent_file} = {}; + $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new }); + $self->{pathnameencoding} = Git::config('svn.pathnameencoding'); + $self; +} + +# this uses the Ra object, so it must be called before do_{switch,update}, +# not inside them (when the Git::SVN::Fetcher object is passed) to +# do_{switch,update} +sub _mark_empty_symlinks { + my ($git_svn, $switch_path) = @_; + my $bool = Git::config_bool('svn.brokenSymlinkWorkaround'); + return {} if (!defined($bool)) || (defined($bool) && ! $bool); + + my %ret; + my ($rev, $cmt) = $git_svn->last_rev_commit; + return {} unless ($rev && $cmt); + + # allow the warning to be printed for each revision we fetch to + # ensure the user sees it. The user can also disable the workaround + # on the repository even while git svn is running and the next + # revision fetched will skip this expensive function. + my $printed_warning; + chomp(my $empty_blob = `git hash-object -t blob --stdin < /dev/null`); + my ($ls, $ctx) = command_output_pipe(qw/ls-tree -r -z/, $cmt); + local $/ = "\0"; + my $pfx = defined($switch_path) ? $switch_path : $git_svn->{path}; + $pfx .= '/' if length($pfx); + while (<$ls>) { + chomp; + s/\A100644 blob $empty_blob\t//o or next; + unless ($printed_warning) { + print STDERR "Scanning for empty symlinks, ", + "this may take a while if you have ", + "many empty files\n", + "You may disable this with `", + "git config svn.brokenSymlinkWorkaround ", + "false'.\n", + "This may be done in a different ", + "terminal without restarting ", + "git svn\n"; + $printed_warning = 1; + } + my $path = $_; + my (undef, $props) = + $git_svn->ra->get_file($pfx.$path, $rev, undef); + if ($props->{'svn:special'}) { + $ret{$path} = 1; + } + } + command_close_pipe($ls, $ctx); + \%ret; +} + +# returns true if a given path is inside a ".git" directory +sub in_dot_git { + $_[0] =~ m{(?:^|/)\.git(?:/|$)}; +} + +# return value: 0 -- don't ignore, 1 -- ignore +sub is_path_ignored { + my ($self, $path) = @_; + return 1 if in_dot_git($path); + return 1 if defined($self->{ignore_regex}) && + $path =~ m!$self->{ignore_regex}!; + return 0 unless defined($_ignore_regex); + return 1 if $path =~ m!$_ignore_regex!o; + return 0; +} + +sub set_path_strip { + my ($self, $path) = @_; + $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path; +} + +sub open_root { + { path => '' }; +} + +sub open_directory { + my ($self, $path, $pb, $rev) = @_; + { path => $path }; +} + +sub git_path { + my ($self, $path) = @_; + if (my $enc = $self->{pathnameencoding}) { + require Encode; + Encode::from_to($path, 'UTF-8', $enc); + } + if ($self->{path_strip}) { + $path =~ s!$self->{path_strip}!! or + die "Failed to strip path '$path' ($self->{path_strip})\n"; + } + $path; +} + +sub delete_entry { + my ($self, $path, $rev, $pb) = @_; + return undef if $self->is_path_ignored($path); + + my $gpath = $self->git_path($path); + return undef if ($gpath eq ''); + + # remove entire directories. + my ($tree) = (command('ls-tree', '-z', $self->{c}, "./$gpath") + =~ /\A040000 tree ([a-f\d]{40})\t\Q$gpath\E\0/); + if ($tree) { + my ($ls, $ctx) = command_output_pipe(qw/ls-tree + -r --name-only -z/, + $tree); + local $/ = "\0"; + while (<$ls>) { + chomp; + my $rmpath = "$gpath/$_"; + $self->{gii}->remove($rmpath); + print "\tD\t$rmpath\n" unless $::_q; + } + print "\tD\t$gpath/\n" unless $::_q; + command_close_pipe($ls, $ctx); + } else { + $self->{gii}->remove($gpath); + print "\tD\t$gpath\n" unless $::_q; + } + # Don't add to @deleted_gpath if we're deleting a placeholder file. + push @deleted_gpath, $gpath unless $added_placeholder{dirname($path)}; + $self->{empty}->{$path} = 0; + undef; +} + +sub open_file { + my ($self, $path, $pb, $rev) = @_; + my ($mode, $blob); + + goto out if $self->is_path_ignored($path); + + my $gpath = $self->git_path($path); + ($mode, $blob) = (command('ls-tree', '-z', $self->{c}, "./$gpath") + =~ /\A(\d{6}) blob ([a-f\d]{40})\t\Q$gpath\E\0/); + unless (defined $mode && defined $blob) { + die "$path was not found in commit $self->{c} (r$rev)\n"; + } + if ($mode eq '100644' && $self->{empty_symlinks}->{$path}) { + $mode = '120000'; + } +out: + { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob, + pool => SVN::Pool->new, action => 'M' }; +} + +sub add_file { + my ($self, $path, $pb, $cp_path, $cp_rev) = @_; + my $mode; + + if (!$self->is_path_ignored($path)) { + my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#); + delete $self->{empty}->{$dir}; + $mode = '100644'; + + if ($added_placeholder{$dir}) { + # Remove our placeholder file, if we created one. + delete_entry($self, $added_placeholder{$dir}) + unless $path eq $added_placeholder{$dir}; + delete $added_placeholder{$dir} + } + } + + { path => $path, mode_a => $mode, mode_b => $mode, + pool => SVN::Pool->new, action => 'A' }; +} + +sub add_directory { + my ($self, $path, $cp_path, $cp_rev) = @_; + goto out if $self->is_path_ignored($path); + my $gpath = $self->git_path($path); + if ($gpath eq '') { + my ($ls, $ctx) = command_output_pipe(qw/ls-tree + -r --name-only -z/, + $self->{c}); + local $/ = "\0"; + while (<$ls>) { + chomp; + $self->{gii}->remove($_); + print "\tD\t$_\n" unless $::_q; + push @deleted_gpath, $gpath; + } + command_close_pipe($ls, $ctx); + $self->{empty}->{$path} = 0; + } + my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#); + delete $self->{empty}->{$dir}; + $self->{empty}->{$path} = 1; + + if ($added_placeholder{$dir}) { + # Remove our placeholder file, if we created one. + delete_entry($self, $added_placeholder{$dir}); + delete $added_placeholder{$dir} + } + +out: + { path => $path }; +} + +sub change_dir_prop { + my ($self, $db, $prop, $value) = @_; + return undef if $self->is_path_ignored($db->{path}); + $self->{dir_prop}->{$db->{path}} ||= {}; + $self->{dir_prop}->{$db->{path}}->{$prop} = $value; + undef; +} + +sub absent_directory { + my ($self, $path, $pb) = @_; + return undef if $self->is_path_ignored($path); + $self->{absent_dir}->{$pb->{path}} ||= []; + push @{$self->{absent_dir}->{$pb->{path}}}, $path; + undef; +} + +sub absent_file { + my ($self, $path, $pb) = @_; + return undef if $self->is_path_ignored($path); + $self->{absent_file}->{$pb->{path}} ||= []; + push @{$self->{absent_file}->{$pb->{path}}}, $path; + undef; +} + +sub change_file_prop { + my ($self, $fb, $prop, $value) = @_; + return undef if $self->is_path_ignored($fb->{path}); + if ($prop eq 'svn:executable') { + if ($fb->{mode_b} != 120000) { + $fb->{mode_b} = defined $value ? 100755 : 100644; + } + } elsif ($prop eq 'svn:special') { + $fb->{mode_b} = defined $value ? 120000 : 100644; + } else { + $self->{file_prop}->{$fb->{path}} ||= {}; + $self->{file_prop}->{$fb->{path}}->{$prop} = $value; + } + undef; +} + +sub apply_textdelta { + my ($self, $fb, $exp) = @_; + return undef if $self->is_path_ignored($fb->{path}); + my $fh = $::_repository->temp_acquire('svn_delta'); + # $fh gets auto-closed() by SVN::TxDelta::apply(), + # (but $base does not,) so dup() it for reading in close_file + open my $dup, '<&', $fh or croak $!; + my $base = $::_repository->temp_acquire('git_blob'); + + if ($fb->{blob}) { + my ($base_is_link, $size); + + if ($fb->{mode_a} eq '120000' && + ! $self->{empty_symlinks}->{$fb->{path}}) { + print $base 'link ' or die "print $!\n"; + $base_is_link = 1; + } + retry: + $size = $::_repository->cat_blob($fb->{blob}, $base); + die "Failed to read object $fb->{blob}" if ($size < 0); + + if (defined $exp) { + seek $base, 0, 0 or croak $!; + my $got = ::md5sum($base); + if ($got ne $exp) { + my $err = "Checksum mismatch: ". + "$fb->{path} $fb->{blob}\n" . + "expected: $exp\n" . + " got: $got\n"; + if ($base_is_link) { + warn $err, + "Retrying... (possibly ", + "a bad symlink from SVN)\n"; + $::_repository->temp_reset($base); + $base_is_link = 0; + goto retry; + } + die $err; + } + } + } + seek $base, 0, 0 or croak $!; + $fb->{fh} = $fh; + $fb->{base} = $base; + [ SVN::TxDelta::apply($base, $dup, undef, $fb->{path}, $fb->{pool}) ]; +} + +sub close_file { + my ($self, $fb, $exp) = @_; + return undef if $self->is_path_ignored($fb->{path}); + + my $hash; + my $path = $self->git_path($fb->{path}); + if (my $fh = $fb->{fh}) { + if (defined $exp) { + seek($fh, 0, 0) or croak $!; + my $got = ::md5sum($fh); + if ($got ne $exp) { + die "Checksum mismatch: $path\n", + "expected: $exp\n got: $got\n"; + } + } + if ($fb->{mode_b} == 120000) { + sysseek($fh, 0, 0) or croak $!; + my $rd = sysread($fh, my $buf, 5); + + if (!defined $rd) { + croak "sysread: $!\n"; + } elsif ($rd == 0) { + warn "$path has mode 120000", + " but it points to nothing\n", + "converting to an empty file with mode", + " 100644\n"; + $fb->{mode_b} = '100644'; + } elsif ($buf ne 'link ') { + warn "$path has mode 120000", + " but is not a link\n"; + } else { + my $tmp_fh = $::_repository->temp_acquire( + 'svn_hash'); + my $res; + while ($res = sysread($fh, my $str, 1024)) { + my $out = syswrite($tmp_fh, $str, $res); + defined($out) && $out == $res + or croak("write ", + Git::temp_path($tmp_fh), + ": $!\n"); + } + defined $res or croak $!; + + ($fh, $tmp_fh) = ($tmp_fh, $fh); + Git::temp_release($tmp_fh, 1); + } + } + + $hash = $::_repository->hash_and_insert_object( + Git::temp_path($fh)); + $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n"; + + Git::temp_release($fb->{base}, 1); + Git::temp_release($fh, 1); + } else { + $hash = $fb->{blob} or die "no blob information\n"; + } + $fb->{pool}->clear; + $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!; + print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q; + undef; +} + +sub abort_edit { + my $self = shift; + $self->{nr} = $self->{gii}->{nr}; + delete $self->{gii}; + $self->SUPER::abort_edit(@_); +} + +sub close_edit { + my $self = shift; + + if ($_preserve_empty_dirs) { + my @empty_dirs; + + # Any entry flagged as empty that also has an associated + # dir_prop represents a newly created empty directory. + foreach my $i (keys %{$self->{empty}}) { + push @empty_dirs, $i if exists $self->{dir_prop}->{$i}; + } + + # Search for directories that have become empty due subsequent + # file deletes. + push @empty_dirs, $self->find_empty_directories(); + + # Finally, add a placeholder file to each empty directory. + $self->add_placeholder_file($_) foreach (@empty_dirs); + + $self->stash_placeholder_list(); + } + + $self->{git_commit_ok} = 1; + $self->{nr} = $self->{gii}->{nr}; + delete $self->{gii}; + $self->SUPER::close_edit(@_); +} + +sub find_empty_directories { + my ($self) = @_; + my @empty_dirs; + my %dirs = map { dirname($_) => 1 } @deleted_gpath; + + foreach my $dir (sort keys %dirs) { + next if $dir eq "."; + + # If there have been any additions to this directory, there is + # no reason to check if it is empty. + my $skip_added = 0; + foreach my $t (qw/dir_prop file_prop/) { + foreach my $path (keys %{ $self->{$t} }) { + if (exists $self->{$t}->{dirname($path)}) { + $skip_added = 1; + last; + } + } + last if $skip_added; + } + next if $skip_added; + + # Use `git ls-tree` to get the filenames of this directory + # that existed prior to this particular commit. + my $ls = command('ls-tree', '-z', '--name-only', + $self->{c}, "$dir/"); + my %files = map { $_ => 1 } split(/\0/, $ls); + + # Remove the filenames that were deleted during this commit. + delete $files{$_} foreach (@deleted_gpath); + + # Report the directory if there are no filenames left. + push @empty_dirs, $dir unless (scalar %files); + } + @empty_dirs; +} + +sub add_placeholder_file { + my ($self, $dir) = @_; + my $path = "$dir/$_placeholder_filename"; + my $gpath = $self->git_path($path); + + my $fh = $::_repository->temp_acquire($gpath); + my $hash = $::_repository->hash_and_insert_object(Git::temp_path($fh)); + Git::temp_release($fh, 1); + $self->{gii}->update('100644', $hash, $gpath) or croak $!; + + # The directory should no longer be considered empty. + delete $self->{empty}->{$dir} if exists $self->{empty}->{$dir}; + + # Keep track of any placeholder files we create. + $added_placeholder{$dir} = $path; +} + +sub stash_placeholder_list { + my ($self) = @_; + my $k = "svn-remote.$repo_id.added-placeholder"; + my $v = eval { command_oneline('config', '--get-all', $k) }; + command_noisy('config', '--unset-all', $k) if $v; + foreach (values %added_placeholder) { + command_noisy('config', '--add', $k, $_); + } +} + +package SVN::Git::Editor; +use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/; +use strict; +use warnings; +use Carp qw/croak/; +use IO::File; + +sub new { + my ($class, $opts) = @_; + foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) { + die "$_ required!\n" unless (defined $opts->{$_}); + } + + my $pool = SVN::Pool->new; + my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b}); + my $types = check_diff_paths($opts->{ra}, $opts->{svn_path}, + $opts->{r}, $mods); + + # $opts->{ra} functions should not be used after this: + my @ce = $opts->{ra}->get_commit_editor($opts->{log}, + $opts->{editor_cb}, $pool); + my $self = SVN::Delta::Editor->new(@ce, $pool); + bless $self, $class; + foreach (qw/svn_path r tree_a tree_b/) { + $self->{$_} = $opts->{$_}; + } + $self->{url} = $opts->{ra}->{url}; + $self->{mods} = $mods; + $self->{types} = $types; + $self->{pool} = $pool; + $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) }; + $self->{rm} = { }; + $self->{path_prefix} = length $self->{svn_path} ? + "$self->{svn_path}/" : ''; + $self->{config} = $opts->{config}; + $self->{mergeinfo} = $opts->{mergeinfo}; + return $self; +} + +sub generate_diff { + my ($tree_a, $tree_b) = @_; + my @diff_tree = qw(diff-tree -z -r); + if ($_cp_similarity) { + push @diff_tree, "-C$_cp_similarity"; + } else { + push @diff_tree, '-C'; + } + push @diff_tree, '--find-copies-harder' if $_find_copies_harder; + push @diff_tree, "-l$_rename_limit" if defined $_rename_limit; + push @diff_tree, $tree_a, $tree_b; + my ($diff_fh, $ctx) = command_output_pipe(@diff_tree); + local $/ = "\0"; + my $state = 'meta'; + my @mods; + while (<$diff_fh>) { + chomp $_; # this gets rid of the trailing "\0" + if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s + ($::sha1)\s($::sha1)\s + ([MTCRAD])\d*$/xo) { + push @mods, { mode_a => $1, mode_b => $2, + sha1_a => $3, sha1_b => $4, + chg => $5 }; + if ($5 =~ /^(?:C|R)$/) { + $state = 'file_a'; + } else { + $state = 'file_b'; + } + } elsif ($state eq 'file_a') { + my $x = $mods[$#mods] or croak "Empty array\n"; + if ($x->{chg} !~ /^(?:C|R)$/) { + croak "Error parsing $_, $x->{chg}\n"; + } + $x->{file_a} = $_; + $state = 'file_b'; + } elsif ($state eq 'file_b') { + my $x = $mods[$#mods] or croak "Empty array\n"; + if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) { + croak "Error parsing $_, $x->{chg}\n"; + } + if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) { + croak "Error parsing $_, $x->{chg}\n"; + } + $x->{file_b} = $_; + $state = 'meta'; + } else { + croak "Error parsing $_\n"; + } + } + command_close_pipe($diff_fh, $ctx); + \@mods; +} + +sub check_diff_paths { + my ($ra, $pfx, $rev, $mods) = @_; + my %types; + $pfx .= '/' if length $pfx; + + sub type_diff_paths { + my ($ra, $types, $path, $rev) = @_; + my @p = split m#/+#, $path; + my $c = shift @p; + unless (defined $types->{$c}) { + $types->{$c} = $ra->check_path($c, $rev); + } + while (@p) { + $c .= '/' . shift @p; + next if defined $types->{$c}; + $types->{$c} = $ra->check_path($c, $rev); + } + } + + foreach my $m (@$mods) { + foreach my $f (qw/file_a file_b/) { + next unless defined $m->{$f}; + my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#); + if (length $pfx.$dir && ! defined $types{$dir}) { + type_diff_paths($ra, \%types, $pfx.$dir, $rev); + } + } + } + \%types; +} + +sub split_path { + return ($_[0] =~ m#^(.*?)/?([^/]+)$#); +} + +sub repo_path { + my ($self, $path) = @_; + if (my $enc = $self->{pathnameencoding}) { + require Encode; + Encode::from_to($path, $enc, 'UTF-8'); + } + $self->{path_prefix}.(defined $path ? $path : ''); +} + +sub url_path { + my ($self, $path) = @_; + if ($self->{url} =~ m#^https?://#) { + $path =~ s!([^~a-zA-Z0-9_./-])!uc sprintf("%%%02x",ord($1))!eg; + } + $self->{url} . '/' . $self->repo_path($path); +} + +sub rmdirs { + my ($self) = @_; + my $rm = $self->{rm}; + delete $rm->{''}; # we never delete the url we're tracking + return unless %$rm; + + foreach (keys %$rm) { + my @d = split m#/#, $_; + my $c = shift @d; + $rm->{$c} = 1; + while (@d) { + $c .= '/' . shift @d; + $rm->{$c} = 1; + } + } + delete $rm->{$self->{svn_path}}; + delete $rm->{''}; # we never delete the url we're tracking + return unless %$rm; + + my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/, + $self->{tree_b}); + local $/ = "\0"; + while (<$fh>) { + chomp; + my @dn = split m#/#, $_; + while (pop @dn) { + delete $rm->{join '/', @dn}; + } + unless (%$rm) { + close $fh; + return; + } + } + command_close_pipe($fh, $ctx); + + my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat}); + foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) { + $self->close_directory($bat->{$d}, $p); + my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#); + print "\tD+\t$d/\n" unless $::_q; + $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p); + delete $bat->{$d}; + } +} + +sub open_or_add_dir { + my ($self, $full_path, $baton) = @_; + my $t = $self->{types}->{$full_path}; + if (!defined $t) { + die "$full_path not known in r$self->{r} or we have a bug!\n"; + } + { + no warnings 'once'; + # SVN::Node::none and SVN::Node::file are used only once, + # so we're shutting up Perl's warnings about them. + if ($t == $SVN::Node::none) { + return $self->add_directory($full_path, $baton, + undef, -1, $self->{pool}); + } elsif ($t == $SVN::Node::dir) { + return $self->open_directory($full_path, $baton, + $self->{r}, $self->{pool}); + } # no warnings 'once' + print STDERR "$full_path already exists in repository at ", + "r$self->{r} and it is not a directory (", + ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n"; + } # no warnings 'once' + exit 1; +} + +sub ensure_path { + my ($self, $path) = @_; + my $bat = $self->{bat}; + my $repo_path = $self->repo_path($path); + return $bat->{''} unless (length $repo_path); + my @p = split m#/+#, $repo_path; + my $c = shift @p; + $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''}); + while (@p) { + my $c0 = $c; + $c .= '/' . shift @p; + $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0}); + } + return $bat->{$c}; +} + +# Subroutine to convert a globbing pattern to a regular expression. +# From perl cookbook. +sub glob2pat { + my $globstr = shift; + my %patmap = ('*' => '.*', '?' => '.', '[' => '[', ']' => ']'); + $globstr =~ s{(.)} { $patmap{$1} || "\Q$1" }ge; + return '^' . $globstr . '$'; +} + +sub check_autoprop { + my ($self, $pattern, $properties, $file, $fbat) = @_; + # Convert the globbing pattern to a regular expression. + my $regex = glob2pat($pattern); + # Check if the pattern matches the file name. + if($file =~ m/($regex)/) { + # Parse the list of properties to set. + my @props = split(/;/, $properties); + foreach my $prop (@props) { + # Parse 'name=value' syntax and set the property. + if ($prop =~ /([^=]+)=(.*)/) { + my ($n,$v) = ($1,$2); + for ($n, $v) { + s/^\s+//; s/\s+$//; + } + $self->change_file_prop($fbat, $n, $v); + } + } + } +} + +sub apply_autoprops { + my ($self, $file, $fbat) = @_; + my $conf_t = ${$self->{config}}{'config'}; + no warnings 'once'; + # Check [miscellany]/enable-auto-props in svn configuration. + if (SVN::_Core::svn_config_get_bool( + $conf_t, + $SVN::_Core::SVN_CONFIG_SECTION_MISCELLANY, + $SVN::_Core::SVN_CONFIG_OPTION_ENABLE_AUTO_PROPS, + 0)) { + # Auto-props are enabled. Enumerate them to look for matches. + my $callback = sub { + $self->check_autoprop($_[0], $_[1], $file, $fbat); + }; + SVN::_Core::svn_config_enumerate( + $conf_t, + $SVN::_Core::SVN_CONFIG_SECTION_AUTO_PROPS, + $callback); + } +} + +sub A { + my ($self, $m) = @_; + my ($dir, $file) = split_path($m->{file_b}); + my $pbat = $self->ensure_path($dir); + my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat, + undef, -1); + print "\tA\t$m->{file_b}\n" unless $::_q; + $self->apply_autoprops($file, $fbat); + $self->chg_file($fbat, $m); + $self->close_file($fbat,undef,$self->{pool}); +} + +sub C { + my ($self, $m) = @_; + my ($dir, $file) = split_path($m->{file_b}); + my $pbat = $self->ensure_path($dir); + my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat, + $self->url_path($m->{file_a}), $self->{r}); + print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q; + $self->chg_file($fbat, $m); + $self->close_file($fbat,undef,$self->{pool}); +} + +sub delete_entry { + my ($self, $path, $pbat) = @_; + my $rpath = $self->repo_path($path); + my ($dir, $file) = split_path($rpath); + $self->{rm}->{$dir} = 1; + $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool}); +} + +sub R { + my ($self, $m) = @_; + my ($dir, $file) = split_path($m->{file_b}); + my $pbat = $self->ensure_path($dir); + my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat, + $self->url_path($m->{file_a}), $self->{r}); + print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q; + $self->apply_autoprops($file, $fbat); + $self->chg_file($fbat, $m); + $self->close_file($fbat,undef,$self->{pool}); + + ($dir, $file) = split_path($m->{file_a}); + $pbat = $self->ensure_path($dir); + $self->delete_entry($m->{file_a}, $pbat); +} + +sub M { + my ($self, $m) = @_; + my ($dir, $file) = split_path($m->{file_b}); + my $pbat = $self->ensure_path($dir); + my $fbat = $self->open_file($self->repo_path($m->{file_b}), + $pbat,$self->{r},$self->{pool}); + print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q; + $self->chg_file($fbat, $m); + $self->close_file($fbat,undef,$self->{pool}); +} + +sub T { shift->M(@_) } + +sub change_file_prop { + my ($self, $fbat, $pname, $pval) = @_; + $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool}); +} + +sub change_dir_prop { + my ($self, $pbat, $pname, $pval) = @_; + $self->SUPER::change_dir_prop($pbat, $pname, $pval, $self->{pool}); +} + +sub _chg_file_get_blob ($$$$) { + my ($self, $fbat, $m, $which) = @_; + my $fh = $::_repository->temp_acquire("git_blob_$which"); + if ($m->{"mode_$which"} =~ /^120/) { + print $fh 'link ' or croak $!; + $self->change_file_prop($fbat,'svn:special','*'); + } elsif ($m->{mode_a} =~ /^120/ && $m->{"mode_$which"} !~ /^120/) { + $self->change_file_prop($fbat,'svn:special',undef); + } + my $blob = $m->{"sha1_$which"}; + return ($fh,) if ($blob =~ /^0{40}$/); + my $size = $::_repository->cat_blob($blob, $fh); + croak "Failed to read object $blob" if ($size < 0); + $fh->flush == 0 or croak $!; + seek $fh, 0, 0 or croak $!; + + my $exp = ::md5sum($fh); + seek $fh, 0, 0 or croak $!; + return ($fh, $exp); +} + +sub chg_file { + my ($self, $fbat, $m) = @_; + if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) { + $self->change_file_prop($fbat,'svn:executable','*'); + } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) { + $self->change_file_prop($fbat,'svn:executable',undef); + } + my ($fh_a, $exp_a) = _chg_file_get_blob $self, $fbat, $m, 'a'; + my ($fh_b, $exp_b) = _chg_file_get_blob $self, $fbat, $m, 'b'; + my $pool = SVN::Pool->new; + my $atd = $self->apply_textdelta($fbat, $exp_a, $pool); + if (-s $fh_a) { + my $txstream = SVN::TxDelta::new ($fh_a, $fh_b, $pool); + my $res = SVN::TxDelta::send_txstream($txstream, @$atd, $pool); + if (defined $res) { + die "Unexpected result from send_txstream: $res\n", + "(SVN::Core::VERSION: $SVN::Core::VERSION)\n"; + } + } else { + my $got = SVN::TxDelta::send_stream($fh_b, @$atd, $pool); + die "Checksum mismatch\nexpected: $exp_b\ngot: $got\n" + if ($got ne $exp_b); + } + Git::temp_release($fh_b, 1); + Git::temp_release($fh_a, 1); + $pool->clear; +} + +sub D { + my ($self, $m) = @_; + my ($dir, $file) = split_path($m->{file_b}); + my $pbat = $self->ensure_path($dir); + print "\tD\t$m->{file_b}\n" unless $::_q; + $self->delete_entry($m->{file_b}, $pbat); +} + +sub close_edit { + my ($self) = @_; + my ($p,$bat) = ($self->{pool}, $self->{bat}); + foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) { + next if $_ eq ''; + $self->close_directory($bat->{$_}, $p); + } + $self->close_directory($bat->{''}, $p); + $self->SUPER::close_edit($p); + $p->clear; +} + +sub abort_edit { + my ($self) = @_; + $self->SUPER::abort_edit($self->{pool}); +} + +sub DESTROY { + my $self = shift; + $self->SUPER::DESTROY(@_); + $self->{pool}->clear; +} + +# this drives the editor +sub apply_diff { + my ($self) = @_; + my $mods = $self->{mods}; + my %o = ( D => 1, R => 0, C => -1, A => 3, M => 3, T => 3 ); + foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) { + my $f = $m->{chg}; + if (defined $o{$f}) { + $self->$f($m); + } else { + fatal("Invalid change type: $f"); + } + } + + if (defined($self->{mergeinfo})) { + $self->change_dir_prop($self->{bat}{''}, "svn:mergeinfo", + $self->{mergeinfo}); + } + $self->rmdirs if $_rmdir; + if (@$mods == 0 && !defined($self->{mergeinfo})) { + $self->abort_edit; + } else { + $self->close_edit; + } + return scalar @$mods; +} + +package Git::SVN::Ra; +use vars qw/@ISA $config_dir $_ignore_refs_regex $_log_window_size/; +use strict; +use warnings; +my ($ra_invalid, $can_do_switch, %ignored_err, $RA); + +BEGIN { + # enforce temporary pool usage for some simple functions + no strict 'refs'; + for my $f (qw/rev_proplist get_latest_revnum get_uuid get_repos_root + get_file/) { + my $SUPER = "SUPER::$f"; + *$f = sub { + my $self = shift; + my $pool = SVN::Pool->new; + my @ret = $self->$SUPER(@_,$pool); + $pool->clear; + wantarray ? @ret : $ret[0]; + }; + } +} + +sub _auth_providers () { + [ + SVN::Client::get_simple_provider(), + SVN::Client::get_ssl_server_trust_file_provider(), + SVN::Client::get_simple_prompt_provider( + \&Git::SVN::Prompt::simple, 2), + SVN::Client::get_ssl_client_cert_file_provider(), + SVN::Client::get_ssl_client_cert_prompt_provider( + \&Git::SVN::Prompt::ssl_client_cert, 2), + SVN::Client::get_ssl_client_cert_pw_file_provider(), + SVN::Client::get_ssl_client_cert_pw_prompt_provider( + \&Git::SVN::Prompt::ssl_client_cert_pw, 2), + SVN::Client::get_username_provider(), + SVN::Client::get_ssl_server_trust_prompt_provider( + \&Git::SVN::Prompt::ssl_server_trust), + SVN::Client::get_username_prompt_provider( + \&Git::SVN::Prompt::username, 2) + ] +} + +sub escape_uri_only { + my ($uri) = @_; + my @tmp; + foreach (split m{/}, $uri) { + s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg; + push @tmp, $_; + } + join('/', @tmp); +} + +sub escape_url { + my ($url) = @_; + if ($url =~ m#^(https?)://([^/]+)(.*)$#) { + my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3)); + $url = "$scheme://$domain$uri"; + } + $url; +} + +sub new { + my ($class, $url) = @_; + $url =~ s!/+$!!; + return $RA if ($RA && $RA->{url} eq $url); + + ::_req_svn(); + + SVN::_Core::svn_config_ensure($config_dir, undef); + my ($baton, $callbacks) = SVN::Core::auth_open_helper(_auth_providers); + my $config = SVN::Core::config_get_config($config_dir); + $RA = undef; + my $dont_store_passwords = 1; + my $conf_t = ${$config}{'config'}; + { + no warnings 'once'; + # The usage of $SVN::_Core::SVN_CONFIG_* variables + # produces warnings that variables are used only once. + # I had not found the better way to shut them up, so + # the warnings of type 'once' are disabled in this block. + if (SVN::_Core::svn_config_get_bool($conf_t, + $SVN::_Core::SVN_CONFIG_SECTION_AUTH, + $SVN::_Core::SVN_CONFIG_OPTION_STORE_PASSWORDS, + 1) == 0) { + SVN::_Core::svn_auth_set_parameter($baton, + $SVN::_Core::SVN_AUTH_PARAM_DONT_STORE_PASSWORDS, + bless (\$dont_store_passwords, "_p_void")); + } + if (SVN::_Core::svn_config_get_bool($conf_t, + $SVN::_Core::SVN_CONFIG_SECTION_AUTH, + $SVN::_Core::SVN_CONFIG_OPTION_STORE_AUTH_CREDS, + 1) == 0) { + $Git::SVN::Prompt::_no_auth_cache = 1; + } + } # no warnings 'once' + my $self = SVN::Ra->new(url => escape_url($url), auth => $baton, + config => $config, + pool => SVN::Pool->new, + auth_provider_callbacks => $callbacks); + $self->{url} = $url; + $self->{svn_path} = $url; + $self->{repos_root} = $self->get_repos_root; + $self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##; + $self->{cache} = { check_path => { r => 0, data => {} }, + get_dir => { r => 0, data => {} } }; + $RA = bless $self, $class; +} + +sub check_path { + my ($self, $path, $r) = @_; + my $cache = $self->{cache}->{check_path}; + if ($r == $cache->{r} && exists $cache->{data}->{$path}) { + return $cache->{data}->{$path}; + } + my $pool = SVN::Pool->new; + my $t = $self->SUPER::check_path($path, $r, $pool); + $pool->clear; + if ($r != $cache->{r}) { + %{$cache->{data}} = (); + $cache->{r} = $r; + } + $cache->{data}->{$path} = $t; +} + +sub get_dir { + my ($self, $dir, $r) = @_; + my $cache = $self->{cache}->{get_dir}; + if ($r == $cache->{r}) { + if (my $x = $cache->{data}->{$dir}) { + return wantarray ? @$x : $x->[0]; + } + } + my $pool = SVN::Pool->new; + my ($d, undef, $props) = $self->SUPER::get_dir($dir, $r, $pool); + my %dirents = map { $_ => { kind => $d->{$_}->kind } } keys %$d; + $pool->clear; + if ($r != $cache->{r}) { + %{$cache->{data}} = (); + $cache->{r} = $r; + } + $cache->{data}->{$dir} = [ \%dirents, $r, $props ]; + wantarray ? (\%dirents, $r, $props) : \%dirents; +} + +sub DESTROY { + # do not call the real DESTROY since we store ourselves in $RA +} + +# get_log(paths, start, end, limit, +# discover_changed_paths, strict_node_history, receiver) +sub get_log { + my ($self, @args) = @_; + my $pool = SVN::Pool->new; + + # svn_log_changed_path_t objects passed to get_log are likely to be + # overwritten even if only the refs are copied to an external variable, + # so we should dup the structures in their entirety. Using an + # externally passed pool (instead of our temporary and quickly cleared + # pool in Git::SVN::Ra) does not help matters at all... + my $receiver = pop @args; + my $prefix = "/".$self->{svn_path}; + $prefix =~ s#/+($)##; + my $prefix_regex = qr#^\Q$prefix\E#; + push(@args, sub { + my ($paths) = $_[0]; + return &$receiver(@_) unless $paths; + $_[0] = (); + foreach my $p (keys %$paths) { + my $i = $paths->{$p}; + # Make path relative to our url, not repos_root + $p =~ s/$prefix_regex//; + my %s = map { $_ => $i->$_; } + qw/copyfrom_path copyfrom_rev action/; + if ($s{'copyfrom_path'}) { + $s{'copyfrom_path'} =~ s/$prefix_regex//; + } + $_[0]{$p} = \%s; + } + &$receiver(@_); + }); + + + # the limit parameter was not supported in SVN 1.1.x, so we + # drop it. Therefore, the receiver callback passed to it + # is made aware of this limitation by being wrapped if + # the limit passed to is being wrapped. + if ($SVN::Core::VERSION le '1.2.0') { + my $limit = splice(@args, 3, 1); + if ($limit > 0) { + my $receiver = pop @args; + push(@args, sub { &$receiver(@_) if (--$limit >= 0) }); + } + } + my $ret = $self->SUPER::get_log(@args, $pool); + $pool->clear; + $ret; +} + +sub trees_match { + my ($self, $url1, $rev1, $url2, $rev2) = @_; + my $ctx = SVN::Client->new(auth => _auth_providers); + my $out = IO::File->new_tmpfile; + + # older SVN (1.1.x) doesn't take $pool as the last parameter for + # $ctx->diff(), so we'll create a default one + my $pool = SVN::Pool->new_default_sub; + + $ra_invalid = 1; # this will open a new SVN::Ra connection to $url1 + $ctx->diff([], $url1, $rev1, $url2, $rev2, 1, 1, 0, $out, $out); + $out->flush; + my $ret = (($out->stat)[7] == 0); + close $out or croak $!; + + $ret; +} + +sub get_commit_editor { + my ($self, $log, $cb, $pool) = @_; + my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : (); + $self->SUPER::get_commit_editor($log, $cb, @lock, $pool); +} + +sub gs_do_update { + my ($self, $rev_a, $rev_b, $gs, $editor) = @_; + my $new = ($rev_a == $rev_b); + my $path = $gs->{path}; + + if ($new && -e $gs->{index}) { + unlink $gs->{index} or die + "Couldn't unlink index: $gs->{index}: $!\n"; + } + my $pool = SVN::Pool->new; + $editor->set_path_strip($path); + my (@pc) = split m#/#, $path; + my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''), + 1, $editor, $pool); + my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : (); + + # Since we can't rely on svn_ra_reparent being available, we'll + # just have to do some magic with set_path to make it so + # we only want a partial path. + my $sp = ''; + my $final = join('/', @pc); + while (@pc) { + $reporter->set_path($sp, $rev_b, 0, @lock, $pool); + $sp .= '/' if length $sp; + $sp .= shift @pc; + } + die "BUG: '$sp' != '$final'\n" if ($sp ne $final); + + $reporter->set_path($sp, $rev_a, $new, @lock, $pool); + + $reporter->finish_report($pool); + $pool->clear; + $editor->{git_commit_ok}; +} + +# this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and +# svn_ra_reparent didn't work before 1.4) +sub gs_do_switch { + my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_; + my $path = $gs->{path}; + my $pool = SVN::Pool->new; + + my $full_url = $self->{url}; + my $old_url = $full_url; + $full_url .= '/' . $path if length $path; + my ($ra, $reparented); + + if ($old_url =~ m#^svn(\+ssh)?://# || + ($full_url =~ m#^https?://# && + escape_url($full_url) ne $full_url)) { + $_[0] = undef; + $self = undef; + $RA = undef; + $ra = Git::SVN::Ra->new($full_url); + $ra_invalid = 1; + } elsif ($old_url ne $full_url) { + SVN::_Ra::svn_ra_reparent($self->{session}, $full_url, $pool); + $self->{url} = $full_url; + $reparented = 1; + } + + $ra ||= $self; + $url_b = escape_url($url_b); + my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool); + my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : (); + $reporter->set_path('', $rev_a, 0, @lock, $pool); + $reporter->finish_report($pool); + + if ($reparented) { + SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool); + $self->{url} = $old_url; + } + + $pool->clear; + $editor->{git_commit_ok}; +} + +sub longest_common_path { + my ($gsv, $globs) = @_; + my %common; + my $common_max = scalar @$gsv; + + foreach my $gs (@$gsv) { + my @tmp = split m#/#, $gs->{path}; + my $p = ''; + foreach (@tmp) { + $p .= length($p) ? "/$_" : $_; + $common{$p} ||= 0; + $common{$p}++; + } + } + $globs ||= []; + $common_max += scalar @$globs; + foreach my $glob (@$globs) { + my @tmp = split m#/#, $glob->{path}->{left}; + my $p = ''; + foreach (@tmp) { + $p .= length($p) ? "/$_" : $_; + $common{$p} ||= 0; + $common{$p}++; + } + } + + my $longest_path = ''; + foreach (sort {length $b <=> length $a} keys %common) { + if ($common{$_} == $common_max) { + $longest_path = $_; + last; + } + } + $longest_path; +} + +sub gs_fetch_loop_common { + my ($self, $base, $head, $gsv, $globs) = @_; + return if ($base > $head); + my $inc = $_log_window_size; + my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc); + my $longest_path = longest_common_path($gsv, $globs); + my $ra_url = $self->{url}; + my $find_trailing_edge; + while (1) { + my %revs; + my $err; + my $err_handler = $SVN::Error::handler; + $SVN::Error::handler = sub { + ($err) = @_; + skip_unknown_revs($err); + }; + sub _cb { + my ($paths, $r, $author, $date, $log) = @_; + [ $paths, + { author => $author, date => $date, log => $log } ]; + } + $self->get_log([$longest_path], $min, $max, 0, 1, 1, + sub { $revs{$_[1]} = _cb(@_) }); + if ($err) { + print "Checked through r$max\r"; + } else { + $find_trailing_edge = 1; + } + if ($err and $find_trailing_edge) { + print STDERR "Path '$longest_path' ", + "was probably deleted:\n", + $err->expanded_message, + "\nWill attempt to follow ", + "revisions r$min .. r$max ", + "committed before the deletion\n"; + my $hi = $max; + while (--$hi >= $min) { + my $ok; + $self->get_log([$longest_path], $min, $hi, + 0, 1, 1, sub { + $ok = $_[1]; + $revs{$_[1]} = _cb(@_) }); + if ($ok) { + print STDERR "r$min .. r$ok OK\n"; + last; + } + } + $find_trailing_edge = 0; + } + $SVN::Error::handler = $err_handler; + + my %exists = map { $_->{path} => $_ } @$gsv; + foreach my $r (sort {$a <=> $b} keys %revs) { + my ($paths, $logged) = @{$revs{$r}}; + + foreach my $gs ($self->match_globs(\%exists, $paths, + $globs, $r)) { + if ($gs->rev_map_max >= $r) { + next; + } + next unless $gs->match_paths($paths, $r); + $gs->{logged_rev_props} = $logged; + if (my $last_commit = $gs->last_commit) { + $gs->assert_index_clean($last_commit); + } + my $log_entry = $gs->do_fetch($paths, $r); + if ($log_entry) { + $gs->do_git_commit($log_entry); + } + $INDEX_FILES{$gs->{index}} = 1; + } + foreach my $g (@$globs) { + my $k = "svn-remote.$g->{remote}." . + "$g->{t}-maxRev"; + Git::SVN::tmp_config($k, $r); + } + if ($ra_invalid) { + $_[0] = undef; + $self = undef; + $RA = undef; + $self = Git::SVN::Ra->new($ra_url); + $ra_invalid = undef; + } + } + # pre-fill the .rev_db since it'll eventually get filled in + # with '0' x40 if something new gets committed + foreach my $gs (@$gsv) { + next if $gs->rev_map_max >= $max; + next if defined $gs->rev_map_get($max); + $gs->rev_map_set($max, 0 x40); + } + foreach my $g (@$globs) { + my $k = "svn-remote.$g->{remote}.$g->{t}-maxRev"; + Git::SVN::tmp_config($k, $max); + } + last if $max >= $head; + $min = $max + 1; + $max += $inc; + $max = $head if ($max > $head); + } + Git::SVN::gc(); +} + +sub get_dir_globbed { + my ($self, $left, $depth, $r) = @_; + + my @x = eval { $self->get_dir($left, $r) }; + return unless scalar @x == 3; + my $dirents = $x[0]; + my @finalents; + foreach my $de (keys %$dirents) { + next if $dirents->{$de}->{kind} != $SVN::Node::dir; + if ($depth > 1) { + my @args = ("$left/$de", $depth - 1, $r); + foreach my $dir ($self->get_dir_globbed(@args)) { + push @finalents, "$de/$dir"; + } + } else { + push @finalents, $de; + } + } + @finalents; +} + +# return value: 0 -- don't ignore, 1 -- ignore +sub is_ref_ignored { + my ($g, $p) = @_; + my $refname = $g->{ref}->full_path($p); + return 1 if defined($g->{ignore_refs_regex}) && + $refname =~ m!$g->{ignore_refs_regex}!; + return 0 unless defined($_ignore_refs_regex); + return 1 if $refname =~ m!$_ignore_refs_regex!o; + return 0; +} + +sub match_globs { + my ($self, $exists, $paths, $globs, $r) = @_; + + sub get_dir_check { + my ($self, $exists, $g, $r) = @_; + + my @dirs = $self->get_dir_globbed($g->{path}->{left}, + $g->{path}->{depth}, + $r); + + foreach my $de (@dirs) { + my $p = $g->{path}->full_path($de); + next if $exists->{$p}; + next if (length $g->{path}->{right} && + ($self->check_path($p, $r) != + $SVN::Node::dir)); + next unless $p =~ /$g->{path}->{regex}/; + $exists->{$p} = Git::SVN->init($self->{url}, $p, undef, + $g->{ref}->full_path($de), 1); + } + } + foreach my $g (@$globs) { + if (my $path = $paths->{"/$g->{path}->{left}"}) { + if ($path->{action} =~ /^[AR]$/) { + get_dir_check($self, $exists, $g, $r); + } + } + foreach (keys %$paths) { + if (/$g->{path}->{left_regex}/ && + !/$g->{path}->{regex}/) { + next if $paths->{$_}->{action} !~ /^[AR]$/; + get_dir_check($self, $exists, $g, $r); + } + next unless /$g->{path}->{regex}/; + my $p = $1; + my $pathname = $g->{path}->full_path($p); + next if is_ref_ignored($g, $p); + next if $exists->{$pathname}; + next if ($self->check_path($pathname, $r) != + $SVN::Node::dir); + $exists->{$pathname} = Git::SVN->init( + $self->{url}, $pathname, undef, + $g->{ref}->full_path($p), 1); + } + my $c = ''; + foreach (split m#/#, $g->{path}->{left}) { + $c .= "/$_"; + next unless ($paths->{$c} && + ($paths->{$c}->{action} =~ /^[AR]$/)); + get_dir_check($self, $exists, $g, $r); + } + } + values %$exists; +} + +sub minimize_url { + my ($self) = @_; + return $self->{url} if ($self->{url} eq $self->{repos_root}); + my $url = $self->{repos_root}; + my @components = split(m!/!, $self->{svn_path}); + my $c = ''; + do { + $url .= "/$c" if length $c; + eval { + my $ra = (ref $self)->new($url); + my $latest = $ra->get_latest_revnum; + $ra->get_log("", $latest, 0, 1, 0, 1, sub {}); + }; + } while ($@ && ($c = shift @components)); + $url; +} + +sub can_do_switch { + my $self = shift; + unless (defined $can_do_switch) { + my $pool = SVN::Pool->new; + my $rep = eval { + $self->do_switch(1, '', 0, $self->{url}, + SVN::Delta::Editor->new, $pool); + }; + if ($@) { + $can_do_switch = 0; + } else { + $rep->abort_report($pool); + $can_do_switch = 1; + } + $pool->clear; + } + $can_do_switch; +} + +sub skip_unknown_revs { + my ($err) = @_; + my $errno = $err->apr_err(); + # Maybe the branch we're tracking didn't + # exist when the repo started, so it's + # not an error if it doesn't, just continue + # + # Wonderfully consistent library, eh? + # 160013 - svn:// and file:// + # 175002 - http(s):// + # 175007 - http(s):// (this repo required authorization, too...) + # More codes may be discovered later... + if ($errno == 175007 || $errno == 175002 || $errno == 160013) { + my $err_key = $err->expanded_message; + # revision numbers change every time, filter them out + $err_key =~ s/\d+/\0/g; + $err_key = "$errno\0$err_key"; + unless ($ignored_err{$err_key}) { + warn "W: Ignoring error from SVN, path probably ", + "does not exist: ($errno): ", + $err->expanded_message,"\n"; + warn "W: Do not be alarmed at the above message ", + "git-svn is just searching aggressively for ", + "old history.\n", + "This may take a while on large repositories\n"; + $ignored_err{$err_key} = 1; + } + return; + } + die "Error from SVN, ($errno): ", $err->expanded_message,"\n"; +} + +package Git::SVN::Log; +use strict; +use warnings; +use POSIX qw/strftime/; +use Time::Local; +use constant commit_log_separator => ('-' x 72) . "\n"; +use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline + %rusers $show_commit $incremental/; +my $l_fmt; + +sub cmt_showable { + my ($c) = @_; + return 1 if defined $c->{r}; + + # big commit message got truncated by the 16k pretty buffer in rev-list + if ($c->{l} && $c->{l}->[-1] eq "...\n" && + $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) { + @{$c->{l}} = (); + my @log = command(qw/cat-file commit/, $c->{c}); + + # shift off the headers + shift @log while ($log[0] ne ''); + shift @log; + + # TODO: make $c->{l} not have a trailing newline in the future + @{$c->{l}} = map { "$_\n" } grep !/^git-svn-id: /, @log; + + (undef, $c->{r}, undef) = ::extract_metadata( + (grep(/^git-svn-id: /, @log))[-1]); + } + return defined $c->{r}; +} + +sub log_use_color { + return $color || Git->repository->get_colorbool('color.diff'); +} + +sub git_svn_log_cmd { + my ($r_min, $r_max, @args) = @_; + my $head = 'HEAD'; + my (@files, @log_opts); + foreach my $x (@args) { + if ($x eq '--' || @files) { + push @files, $x; + } else { + if (::verify_ref("$x^0")) { + $head = $x; + } else { + push @log_opts, $x; + } + } + } + + my ($url, $rev, $uuid, $gs) = ::working_head_info($head); + $gs ||= Git::SVN->_new; + my @cmd = (qw/log --abbrev-commit --pretty=raw --default/, + $gs->refname); + push @cmd, '-r' unless $non_recursive; + push @cmd, qw/--raw --name-status/ if $verbose; + push @cmd, '--color' if log_use_color(); + push @cmd, @log_opts; + if (defined $r_max && $r_max == $r_min) { + push @cmd, '--max-count=1'; + if (my $c = $gs->rev_map_get($r_max)) { + push @cmd, $c; + } + } elsif (defined $r_max) { + if ($r_max < $r_min) { + ($r_min, $r_max) = ($r_max, $r_min); + } + my (undef, $c_max) = $gs->find_rev_before($r_max, 1, $r_min); + my (undef, $c_min) = $gs->find_rev_after($r_min, 1, $r_max); + # If there are no commits in the range, both $c_max and $c_min + # will be undefined. If there is at least 1 commit in the + # range, both will be defined. + return () if !defined $c_min || !defined $c_max; + if ($c_min eq $c_max) { + push @cmd, '--max-count=1', $c_min; + } else { + push @cmd, '--boundary', "$c_min..$c_max"; + } + } + return (@cmd, @files); +} + +# adapted from pager.c +sub config_pager { + if (! -t *STDOUT) { + $ENV{GIT_PAGER_IN_USE} = 'false'; + $pager = undef; + return; + } + chomp($pager = command_oneline(qw(var GIT_PAGER))); + if ($pager eq 'cat') { + $pager = undef; + } + $ENV{GIT_PAGER_IN_USE} = defined($pager); +} + +sub run_pager { + return unless defined $pager; + pipe my ($rfd, $wfd) or return; + defined(my $pid = fork) or ::fatal "Can't fork: $!"; + if (!$pid) { + open STDOUT, '>&', $wfd or + ::fatal "Can't redirect to stdout: $!"; + return; + } + open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!"; + $ENV{LESS} ||= 'FRSX'; + exec $pager or ::fatal "Can't run pager: $! ($pager)"; +} + +sub format_svn_date { + # some systmes don't handle or mishandle %z, so be creative. + my $t = shift || time; + my $gm = timelocal(gmtime($t)); + my $sign = qw( + + - )[ $t <=> $gm ]; + my $gmoff = sprintf("%s%02d%02d", $sign, (gmtime(abs($t - $gm)))[2,1]); + return strftime("%Y-%m-%d %H:%M:%S $gmoff (%a, %d %b %Y)", localtime($t)); +} + +sub parse_git_date { + my ($t, $tz) = @_; + # Date::Parse isn't in the standard Perl distro :( + if ($tz =~ s/^\+//) { + $t += tz_to_s_offset($tz); + } elsif ($tz =~ s/^\-//) { + $t -= tz_to_s_offset($tz); + } + return $t; +} + +sub set_local_timezone { + if (defined $TZ) { + $ENV{TZ} = $TZ; + } else { + delete $ENV{TZ}; + } +} + +sub tz_to_s_offset { + my ($tz) = @_; + $tz =~ s/(\d\d)$//; + return ($1 * 60) + ($tz * 3600); +} + +sub get_author_info { + my ($dest, $author, $t, $tz) = @_; + $author =~ s/(?:^\s*|\s*$)//g; + $dest->{a_raw} = $author; + my $au; + if ($::_authors) { + $au = $rusers{$author} || undef; + } + if (!$au) { + ($au) = ($author =~ /<([^>]+)\@[^>]+>$/); + } + $dest->{t} = $t; + $dest->{tz} = $tz; + $dest->{a} = $au; + $dest->{t_utc} = parse_git_date($t, $tz); +} + +sub process_commit { + my ($c, $r_min, $r_max, $defer) = @_; + if (defined $r_min && defined $r_max) { + if ($r_min == $c->{r} && $r_min == $r_max) { + show_commit($c); + return 0; + } + return 1 if $r_min == $r_max; + if ($r_min < $r_max) { + # we need to reverse the print order + return 0 if (defined $limit && --$limit < 0); + push @$defer, $c; + return 1; + } + if ($r_min != $r_max) { + return 1 if ($r_min < $c->{r}); + return 1 if ($r_max > $c->{r}); + } + } + return 0 if (defined $limit && --$limit < 0); + show_commit($c); + return 1; +} + +sub show_commit { + my $c = shift; + if ($oneline) { + my $x = "\n"; + if (my $l = $c->{l}) { + while ($l->[0] =~ /^\s*$/) { shift @$l } + $x = $l->[0]; + } + $l_fmt ||= 'A' . length($c->{r}); + print 'r',pack($l_fmt, $c->{r}),' | '; + print "$c->{c} | " if $show_commit; + print $x; + } else { + show_commit_normal($c); + } +} + +sub show_commit_changed_paths { + my ($c) = @_; + return unless $c->{changed}; + print "Changed paths:\n", @{$c->{changed}}; +} + +sub show_commit_normal { + my ($c) = @_; + print commit_log_separator, "r$c->{r} | "; + print "$c->{c} | " if $show_commit; + print "$c->{a} | ", format_svn_date($c->{t_utc}), ' | '; + my $nr_line = 0; + + if (my $l = $c->{l}) { + while ($l->[$#$l] eq "\n" && $#$l > 0 + && $l->[($#$l - 1)] eq "\n") { + pop @$l; + } + $nr_line = scalar @$l; + if (!$nr_line) { + print "1 line\n\n\n"; + } else { + if ($nr_line == 1) { + $nr_line = '1 line'; + } else { + $nr_line .= ' lines'; + } + print $nr_line, "\n"; + show_commit_changed_paths($c); + print "\n"; + print $_ foreach @$l; + } + } else { + print "1 line\n"; + show_commit_changed_paths($c); + print "\n"; + + } + foreach my $x (qw/raw stat diff/) { + if ($c->{$x}) { + print "\n"; + print $_ foreach @{$c->{$x}} + } + } +} + +sub cmd_show_log { + my (@args) = @_; + my ($r_min, $r_max); + my $r_last = -1; # prevent dupes + set_local_timezone(); + if (defined $::_revision) { + if ($::_revision =~ /^(\d+):(\d+)$/) { + ($r_min, $r_max) = ($1, $2); + } elsif ($::_revision =~ /^\d+$/) { + $r_min = $r_max = $::_revision; + } else { + ::fatal "-r$::_revision is not supported, use ", + "standard 'git log' arguments instead"; + } + } + + config_pager(); + @args = git_svn_log_cmd($r_min, $r_max, @args); + if (!@args) { + print commit_log_separator unless $incremental || $oneline; + return; + } + my $log = command_output_pipe(@args); + run_pager(); + my (@k, $c, $d, $stat); + my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/; + while (<$log>) { + if (/^${esc_color}commit (?:- )?($::sha1_short)/o) { + my $cmt = $1; + if ($c && cmt_showable($c) && $c->{r} != $r_last) { + $r_last = $c->{r}; + process_commit($c, $r_min, $r_max, \@k) or + goto out; + } + $d = undef; + $c = { c => $cmt }; + } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) { + get_author_info($c, $1, $2, $3); + } elsif (/^${esc_color}(?:tree|parent|committer) /o) { + # ignore + } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) { + push @{$c->{raw}}, $_; + } elsif (/^${esc_color}[ACRMDT]\t/) { + # we could add $SVN->{svn_path} here, but that requires + # remote access at the moment (repo_path_split)... + s#^(${esc_color})([ACRMDT])\t#$1 $2 #o; + push @{$c->{changed}}, $_; + } elsif (/^${esc_color}diff /o) { + $d = 1; + push @{$c->{diff}}, $_; + } elsif ($d) { + push @{$c->{diff}}, $_; + } elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]* + $esc_color*[\+\-]*$esc_color$/x) { + $stat = 1; + push @{$c->{stat}}, $_; + } elsif ($stat && /^ \d+ files changed, \d+ insertions/) { + push @{$c->{stat}}, $_; + $stat = undef; + } elsif (/^${esc_color} (git-svn-id:.+)$/o) { + ($c->{url}, $c->{r}, undef) = ::extract_metadata($1); + } elsif (s/^${esc_color} //o) { + push @{$c->{l}}, $_; + } + } + if ($c && defined $c->{r} && $c->{r} != $r_last) { + $r_last = $c->{r}; + process_commit($c, $r_min, $r_max, \@k); + } + if (@k) { + ($r_min, $r_max) = ($r_max, $r_min); + process_commit($_, $r_min, $r_max) foreach reverse @k; + } +out: + close $log; + print commit_log_separator unless $incremental || $oneline; +} + +sub cmd_blame { + my $path = pop; + + config_pager(); + run_pager(); + + my ($fh, $ctx, $rev); + + if ($_git_format) { + ($fh, $ctx) = command_output_pipe('blame', @_, $path); + while (my $line = <$fh>) { + if ($line =~ /^\^?([[:xdigit:]]+)\s/) { + # Uncommitted edits show up as a rev ID of + # all zeros, which we can't look up with + # cmt_metadata + if ($1 !~ /^0+$/) { + (undef, $rev, undef) = + ::cmt_metadata($1); + $rev = '0' if (!$rev); + } else { + $rev = '0'; + } + $rev = sprintf('%-10s', $rev); + $line =~ s/^\^?[[:xdigit:]]+(\s)/$rev$1/; + } + print $line; + } + } else { + ($fh, $ctx) = command_output_pipe('blame', '-p', @_, 'HEAD', + '--', $path); + my ($sha1); + my %authors; + my @buffer; + my %dsha; #distinct sha keys + + while (my $line = <$fh>) { + push @buffer, $line; + if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) { + $dsha{$1} = 1; + } + } + + my $s2r = ::cmt_sha2rev_batch([keys %dsha]); + + foreach my $line (@buffer) { + if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) { + $rev = $s2r->{$1}; + $rev = '0' if (!$rev) + } + elsif ($line =~ /^author (.*)/) { + $authors{$rev} = $1; + $authors{$rev} =~ s/\s/_/g; + } + elsif ($line =~ /^\t(.*)$/) { + printf("%6s %10s %s\n", $rev, $authors{$rev}, $1); + } + } + } + command_close_pipe($fh, $ctx); +} + +package Git::SVN::Migration; +# these version numbers do NOT correspond to actual version numbers +# of git nor git-svn. They are just relative. +# +# v0 layout: .git/$id/info/url, refs/heads/$id-HEAD +# +# v1 layout: .git/$id/info/url, refs/remotes/$id +# +# v2 layout: .git/svn/$id/info/url, refs/remotes/$id +# +# v3 layout: .git/svn/$id, refs/remotes/$id +# - info/url may remain for backwards compatibility +# - this is what we migrate up to this layout automatically, +# - this will be used by git svn init on single branches +# v3.1 layout (auto migrated): +# - .rev_db => .rev_db.$UUID, .rev_db will remain as a symlink +# for backwards compatibility +# +# v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id +# - this is only created for newly multi-init-ed +# repositories. Similar in spirit to the +# --use-separate-remotes option in git-clone (now default) +# - we do not automatically migrate to this (following +# the example set by core git) +# +# v5 layout: .rev_db.$UUID => .rev_map.$UUID +# - newer, more-efficient format that uses 24-bytes per record +# with no filler space. +# - use xxd -c24 < .rev_map.$UUID to view and debug +# - This is a one-way migration, repositories updated to the +# new format will not be able to use old git-svn without +# rebuilding the .rev_db. Rebuilding the rev_db is not +# possible if noMetadata or useSvmProps are set; but should +# be no problem for users that use the (sensible) defaults. +use strict; +use warnings; +use Carp qw/croak/; +use File::Path qw/mkpath/; +use File::Basename qw/dirname basename/; +use vars qw/$_minimize/; + +sub migrate_from_v0 { + my $git_dir = $ENV{GIT_DIR}; + return undef unless -d $git_dir; + my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/); + my $migrated = 0; + while (<$fh>) { + chomp; + my ($id, $orig_ref) = ($_, $_); + next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#; + next unless -f "$git_dir/$id/info/url"; + my $new_ref = "refs/remotes/$id"; + if (::verify_ref("$new_ref^0")) { + print STDERR "W: $orig_ref is probably an old ", + "branch used by an ancient version of ", + "git-svn.\n", + "However, $new_ref also exists.\n", + "We will not be able ", + "to use this branch until this ", + "ambiguity is resolved.\n"; + next; + } + print STDERR "Migrating from v0 layout...\n" if !$migrated; + print STDERR "Renaming ref: $orig_ref => $new_ref\n"; + command_noisy('update-ref', $new_ref, $orig_ref); + command_noisy('update-ref', '-d', $orig_ref, $orig_ref); + $migrated++; + } + command_close_pipe($fh, $ctx); + print STDERR "Done migrating from v0 layout...\n" if $migrated; + $migrated; +} + +sub migrate_from_v1 { + my $git_dir = $ENV{GIT_DIR}; + my $migrated = 0; + return $migrated unless -d $git_dir; + my $svn_dir = "$git_dir/svn"; + + # just in case somebody used 'svn' as their $id at some point... + return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url"; + + print STDERR "Migrating from a git-svn v1 layout...\n"; + mkpath([$svn_dir]); + print STDERR "Data from a previous version of git-svn exists, but\n\t", + "$svn_dir\n\t(required for this version ", + "($::VERSION) of git-svn) does not exist.\n"; + my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/); + while (<$fh>) { + my $x = $_; + next unless $x =~ s#^refs/remotes/##; + chomp $x; + next unless -f "$git_dir/$x/info/url"; + my $u = eval { ::file_to_s("$git_dir/$x/info/url") }; + next unless $u; + my $dn = dirname("$git_dir/svn/$x"); + mkpath([$dn]) unless -d $dn; + if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID: + mkpath(["$git_dir/svn/svn"]); + print STDERR " - $git_dir/$x/info => ", + "$git_dir/svn/$x/info\n"; + rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or + croak "$!: $x"; + # don't worry too much about these, they probably + # don't exist with repos this old (save for index, + # and we can easily regenerate that) + foreach my $f (qw/unhandled.log index .rev_db/) { + rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f"; + } + } else { + print STDERR " - $git_dir/$x => $git_dir/svn/$x\n"; + rename "$git_dir/$x", "$git_dir/svn/$x" or + croak "$!: $x"; + } + $migrated++; + } + command_close_pipe($fh, $ctx); + print STDERR "Done migrating from a git-svn v1 layout\n"; + $migrated; +} + +sub read_old_urls { + my ($l_map, $pfx, $path) = @_; + my @dir; + foreach (<$path/*>) { + if (-r "$_/info/url") { + $pfx .= '/' if $pfx && $pfx !~ m!/$!; + my $ref_id = $pfx . basename $_; + my $url = ::file_to_s("$_/info/url"); + $l_map->{$ref_id} = $url; + } elsif (-d $_) { + push @dir, $_; + } + } + foreach (@dir) { + my $x = $_; + $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o; + read_old_urls($l_map, $x, $_); + } +} + +sub migrate_from_v2 { + my @cfg = command(qw/config -l/); + return if grep /^svn-remote\..+\.url=/, @cfg; + my %l_map; + read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn"); + my $migrated = 0; + + foreach my $ref_id (sort keys %l_map) { + eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) }; + if ($@) { + Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id); + } + $migrated++; + } + $migrated; +} + +sub minimize_connections { + my $r = Git::SVN::read_all_remotes(); + my $new_urls = {}; + my $root_repos = {}; + foreach my $repo_id (keys %$r) { + my $url = $r->{$repo_id}->{url} or next; + my $fetch = $r->{$repo_id}->{fetch} or next; + my $ra = Git::SVN::Ra->new($url); + + # skip existing cases where we already connect to the root + if (($ra->{url} eq $ra->{repos_root}) || + ($ra->{repos_root} eq $repo_id)) { + $root_repos->{$ra->{url}} = $repo_id; + next; + } + + my $root_ra = Git::SVN::Ra->new($ra->{repos_root}); + my $root_path = $ra->{url}; + $root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##; + foreach my $path (keys %$fetch) { + my $ref_id = $fetch->{$path}; + my $gs = Git::SVN->new($ref_id, $repo_id, $path); + + # make sure we can read when connecting to + # a higher level of a repository + my ($last_rev, undef) = $gs->last_rev_commit; + if (!defined $last_rev) { + $last_rev = eval { + $root_ra->get_latest_revnum; + }; + next if $@; + } + my $new = $root_path; + $new .= length $path ? "/$path" : ''; + eval { + $root_ra->get_log([$new], $last_rev, $last_rev, + 0, 0, 1, sub { }); + }; + next if $@; + $new_urls->{$ra->{repos_root}}->{$new} = + { ref_id => $ref_id, + old_repo_id => $repo_id, + old_path => $path }; + } + } + + my @emptied; + foreach my $url (keys %$new_urls) { + # see if we can re-use an existing [svn-remote "repo_id"] + # instead of creating a(n ugly) new section: + my $repo_id = $root_repos->{$url} || $url; + + my $fetch = $new_urls->{$url}; + foreach my $path (keys %$fetch) { + my $x = $fetch->{$path}; + Git::SVN->init($url, $path, $repo_id, $x->{ref_id}); + my $pfx = "svn-remote.$x->{old_repo_id}"; + + my $old_fetch = quotemeta("$x->{old_path}:". + "$x->{ref_id}"); + command_noisy(qw/config --unset/, + "$pfx.fetch", '^'. $old_fetch . '$'); + delete $r->{$x->{old_repo_id}}-> + {fetch}->{$x->{old_path}}; + if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) { + command_noisy(qw/config --unset/, + "$pfx.url"); + push @emptied, $x->{old_repo_id} + } + } + } + if (@emptied) { + my $file = $ENV{GIT_CONFIG} || "$ENV{GIT_DIR}/config"; + print STDERR <<EOF; +The following [svn-remote] sections in your config file ($file) are empty +and can be safely removed: +EOF + print STDERR "[svn-remote \"$_\"]\n" foreach @emptied; + } +} + +sub migration_check { + migrate_from_v0(); + migrate_from_v1(); + migrate_from_v2(); + minimize_connections() if $_minimize; +} + +package Git::IndexInfo; +use strict; +use warnings; +use Git qw/command_input_pipe command_close_pipe/; + +sub new { + my ($class) = @_; + my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/); + bless { gui => $gui, ctx => $ctx, nr => 0}, $class; +} + +sub remove { + my ($self, $path) = @_; + if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") { + return ++$self->{nr}; + } + undef; +} + +sub update { + my ($self, $mode, $hash, $path) = @_; + if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") { + return ++$self->{nr}; + } + undef; +} + +sub DESTROY { + my ($self) = @_; + command_close_pipe($self->{gui}, $self->{ctx}); +} + +package Git::SVN::GlobSpec; +use strict; +use warnings; + +sub new { + my ($class, $glob, $pattern_ok) = @_; + my $re = $glob; + $re =~ s!/+$!!g; # no need for trailing slashes + my (@left, @right, @patterns); + my $state = "left"; + my $die_msg = "Only one set of wildcard directories " . + "(e.g. '*' or '*/*/*') is supported: '$glob'\n"; + for my $part (split(m|/|, $glob)) { + if ($part =~ /\*/ && $part ne "*") { + die "Invalid pattern in '$glob': $part\n"; + } elsif ($pattern_ok && $part =~ /[{}]/ && + $part !~ /^\{[^{}]+\}/) { + die "Invalid pattern in '$glob': $part\n"; + } + if ($part eq "*") { + die $die_msg if $state eq "right"; + $state = "pattern"; + push(@patterns, "[^/]*"); + } elsif ($pattern_ok && $part =~ /^\{(.*)\}$/) { + die $die_msg if $state eq "right"; + $state = "pattern"; + my $p = quotemeta($1); + $p =~ s/\\,/|/g; + push(@patterns, "(?:$p)"); + } else { + if ($state eq "left") { + push(@left, $part); + } else { + push(@right, $part); + $state = "right"; + } + } + } + my $depth = @patterns; + if ($depth == 0) { + die "One '*' is needed in glob: '$glob'\n"; + } + my $left = join('/', @left); + my $right = join('/', @right); + $re = join('/', @patterns); + $re = join('\/', + grep(length, quotemeta($left), "($re)", quotemeta($right))); + my $left_re = qr/^\/\Q$left\E(\/|$)/; + bless { left => $left, right => $right, left_regex => $left_re, + regex => qr/$re/, glob => $glob, depth => $depth }, $class; +} + +sub full_path { + my ($self, $path) = @_; + return (length $self->{left} ? "$self->{left}/" : '') . + $path . (length $self->{right} ? "/$self->{right}" : ''); +} + +__END__ + +Data structures: + + +$remotes = { # returned by read_all_remotes() + 'svn' => { + # svn-remote.svn.url=https://svn.musicpd.org + url => 'https://svn.musicpd.org', + # svn-remote.svn.fetch=mpd/trunk:trunk + fetch => { + 'mpd/trunk' => 'trunk', + }, + # svn-remote.svn.tags=mpd/tags/*:tags/* + tags => { + path => { + left => 'mpd/tags', + right => '', + regex => qr!mpd/tags/([^/]+)$!, + glob => 'tags/*', + }, + ref => { + left => 'tags', + right => '', + regex => qr!tags/([^/]+)$!, + glob => 'tags/*', + }, + } + } +}; + +$log_entry hashref as returned by libsvn_log_entry() +{ + log => 'whitespace-formatted log entry +', # trailing newline is preserved + revision => '8', # integer + date => '2004-02-24T17:01:44.108345Z', # commit date + author => 'committer name' +}; + + +# this is generated by generate_diff(); +@mods = array of diff-index line hashes, each element represents one line + of diff-index output + +diff-index line ($m hash) +{ + mode_a => first column of diff-index output, no leading ':', + mode_b => second column of diff-index output, + sha1_b => sha1sum of the final blob, + chg => change type [MCRADT], + file_a => original file name of a file (iff chg is 'C' or 'R') + file_b => new/current file name of a file (any chg) +} +; + +# retval of read_url_paths{,_all}(); +$l_map = { + # repository root url + 'https://svn.musicpd.org' => { + # repository path # GIT_SVN_ID + 'mpd/trunk' => 'trunk', + 'mpd/tags/0.11.5' => 'tags/0.11.5', + }, +} + +Notes: + I don't trust the each() function on unless I created %hash myself + because the internal iterator may not have started at base. |