#!/usr/bin/env perl # Copyright (C) 2006, Eric Wong <normalperson@yhbt.net> # License: GPL v2 or later use warnings; use strict; use vars qw/ $AUTHOR $VERSION $sha1 $sha1_short $_revision $_q $_authors %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::Log::TZ = $ENV{TZ}; $ENV{TZ} = 'UTC'; $| = 1; # unbuffer STDOUT sub fatal (@) { print STDERR "@_\n"; exit 1 } require SVN::Core; # use()-ing this causes segfaults for me... *shrug* require SVN::Ra; require SVN::Delta; if ($SVN::Core::VERSION lt '1.1.0') { fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)"; } 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 IO::File qw//; use File::Basename qw/dirname basename/; use File::Path qw/mkpath/; use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/; use IPC::Open3; use Git; 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/) { for my $package ( qw(SVN::Git::Editor SVN::Git::Fetcher Git::SVN::Migration Git::SVN::Log Git::SVN), __PACKAGE__) { *{"${package}::$_"} = \&{"Git::$_"}; } } } my ($SVN); $sha1 = qr/[a-f\d]{40}/; $sha1_short = qr/[a-f\d]{4,40}/; my ($_stdin, $_help, $_edit, $_message, $_file, $_template, $_shared, $_version, $_fetch_all, $_no_rebase, $_merge, $_strategy, $_dry_run, $_local, $_prefix, $_no_checkout, $_verbose); $Git::SVN::_follow_parent = 1; my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username, 'config-dir=s' => \$Git::SVN::Ra::config_dir, 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache ); my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent, 'authors-file|A=s' => \$_authors, 'repack:i' => \$Git::SVN::_repack, 'noMetadata' => \$Git::SVN::_no_metadata, 'useSvmProps' => \$Git::SVN::_use_svm_props, 'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props, 'log-window-size=i' => \$Git::SVN::Ra::_log_window_size, 'no-checkout' => \$_no_checkout, 'quiet|q' => \$_q, 'repack-flags|repack-args|repack-opts=s' => \$Git::SVN::_repack_flags, %remote_opts ); my ($_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] }, %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, %fc_opts } ], clone => [ \&cmd_clone, "Initialize and fetch revisions", { 'revision|r=s' => \$_revision, %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, 'no-rebase' => \$_no_rebase, %cmt_opts, %fc_opts } ], '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 } ], '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 } ], '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, %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 } ], ); my $cmd; for (my $i = 0; $i < @ARGV; $i++) { if (defined $cmd{$ARGV[$i]}) { $cmd = $ARGV[$i]; splice @ARGV, $i, 1; last; } }; my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd); read_repo_config(\%opts); Getopt::Long::Configure('pass_through') if ($cmd && $cmd eq 'log'); my $rv = GetOptions(%opts, 'help|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 $_authors; # make sure we're always running unless ($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}; chomp(my $cdup = command_oneline(qw/rev-parse --show-cdup/)); unless (length $cdup) { die "Already at toplevel, but $git_dir ", "not found '$cdup'\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} = $git_dir; } } unless ($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: $0 <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 { print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n"; exit 0; } 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); } 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; } } 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"; $ENV{GIT_DIR} = '.git'; } sub cmd_clone { my ($url, $path) = @_; if (!defined $path && (defined $_trunk || defined $_branches || defined $_tags || defined $_stdlayout) && $url !~ m#^[a-z\+]+://#) { $path = $url; } $path = basename($url) if !defined $path || !length $path; cmd_init($url, $path); Git::SVN::fetch_all($Git::SVN::default_repo_id); } sub cmd_init { if (defined $_stdlayout) { $_trunk = 'trunk' if (!defined $_trunk); $_tags = 'tags' if (!defined $_tags); $_branches = 'branches' if (!defined $_branches); } if (defined $_trunk || defined $_branches || defined $_tags) { return cmd_multi_init(@_); } my $url = shift or die "SVN repository location required ", "as a command-line argument\n"; init_subdir(@_); do_git_init_db(); Git::SVN->init($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] [svn-remote]\n"; } $remote ||= $Git::SVN::default_repo_id; if ($_fetch_all) { cmd_multi_fetch(); } else { 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"; } sub cmd_dcommit { my $head = shift; $head ||= 'HEAD'; my @refs; my ($url, $rev, $uuid, $gs) = working_head_info($head, \@refs); print "Committing to $url ...\n"; unless ($gs) { die "Unable to determine upstream SVN information from ", "$head history\n"; } my $last_rev; my ($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 will be required." } 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; my %ed_opts = ( r => $last_rev, log => get_commit_entry($d)->{log}, ra => Git::SVN::Ra->new($gs->full_url), tree_a => "$d~1", tree_b => $d, editor_cb => sub { print "Committed r$_[0]\n"; $cmt_rev = $_[0]; }, svn_path => ''); if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) { print "No changes\n$d~1 == $d\n"; } elsif ($parents->{$d} && @{$parents->{$d}}) { $gs->{inject_parents_dcommit}->{$cmt_rev} = $parents->{$d}; } $_fetch_all ? $gs->fetch_all : $gs->fetch; 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, $gs->refname); if (@diff) { @refs = (); my ($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 $url) { fatal "URL mismatch after rebase: ", "$url_ != $url"; } if ($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; } $last_rev = $cmt_rev; } } } sub cmd_find_rev { my $revision_or_hash = shift; my $result; if ($revision_or_hash =~ /^r\d+$/) { my $head = shift; $head ||= 'HEAD'; my @refs; my (undef, undef, undef, $gs) = working_head_info($head, \@refs); unless ($gs) { die "Unable to determine upstream SVN information from ", "$head history\n"; } my $desired_revision = substr($revision_or_hash, 1); $result = $gs->rev_db_get($desired_revision); } else { my (undef, $rev, undef) = cmt_metadata($revision_or_hash); $result = $rev; } print "$result\n" if $result; } sub cmd_rebase { command_noisy(qw/update-index --refresh/); my ($url, $rev, $uuid, $gs) = working_head_info('HEAD'); unless ($gs) { die "Unable to determine upstream SVN information from ", "working tree history\n"; } if (command(qw/diff-index HEAD --/)) { print STDERR "Cannot rebase with uncommited changes:\n"; command_noisy('status'); exit 1; } unless ($_local) { $_fetch_all ? $gs->fetch_all : $gs->fetch; } command_noisy(rebase_cmd(), $gs->refname); } sub cmd_show_ignore { my ($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; 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/ 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; 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', $ignore); }); } # 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) # 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; 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 || defined $_branches || defined $_tags) { usage(1); } # there are currently some bugs that prevent multi-init/multi-fetch # setups from working well without this. $Git::SVN::_minimize_url = 1; $_prefix = '' unless defined $_prefix; if (defined $url) { $url =~ s#/+$##; init_subdir(@_); } do_git_init_db(); if (defined $_trunk) { my $trunk_ref = $_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 defined $_branches || defined $_tags; my $ra = $url ? Git::SVN::Ra->new($url) : undef; complete_url_ls_init($ra, $_branches, '--branches/-b', $_prefix); complete_url_ls_init($ra, $_tags, '--tags/-t', $_prefix . 'tags/'); } sub cmd_multi_fetch { 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); $svn_path ||= $ra->{svn_path}; 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"; } } ########################### 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'); 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", $gs->last_rev, "\n"; } sub complete_svn_url { my ($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 $remote_path = "$ra->{svn_path}/$repo_path/*"; $remote_path =~ s#/+#/#g; $remote_path =~ s#^/##g; my ($n) = ($switch =~ /^--(\w+)/); if (length $pfx && $pfx !~ m#/$#) { die "--prefix='$pfx' must have a trailing slash '/'\n"; } command_noisy('config', "svn-remote.$gs->{repo_id}.$n", "$remote_path:refs/remotes/$pfx*"); } sub verify_ref { my ($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 $in_msg = 0; while (<$msg_fh>) { if (!$in_msg) { $in_msg = 1 if (/^\s*$/); } elsif (/^git-svn-id: /) { # skip this for now, we regenerate the # correct one on re-fetch anyways # TODO: set *:merge properties or like... } else { print $log_fh $_ or croak $!; } } command_close_pipe($msg_fh, $ctx); } close $log_fh or croak $!; if ($_edit || ($type eq 'tree')) { my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi'; # TODO: strip out spaces, comments, like git-commit.sh system($editor, $commit_editmsg); } rename $commit_editmsg, $commit_msg or croak $!; open $log_fh, '<', $commit_msg or croak $!; { local $/; chomp($log_entry{log} = <$log_fh>); } 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_repo_config { return unless -d $ENV{GIT_DIR}; 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\-]+)$/x); 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\-]+)/); } return ($url, $rev, $uuid); } sub cmt_metadata { return extract_metadata((grep(/^git-svn-id: /, command(qw/cat-file commit/, shift)))[-1]); } sub working_head_info { my ($head, $refs) = @_; my @args = ('log', '--no-color', '--first-parent'); my ($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 = $gs->rev_db_get($rev); if ($c && $c eq $hash) { close $fh; # break the pipe return ($url, $rev, $uuid, $gs); } else { $max{$url} ||= $gs->rev_db_max; } } } } command_close_pipe($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); } package Git::SVN; use strict; use warnings; 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 Carp qw/croak/; use File::Path qw/mkpath/; use File::Copy qw/copy/; use IPC::Open3; my $_repack_nr; # 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; END { unlink keys %LOCKFILES if %LOCKFILES } sub resolve_local_globs { my ($url, $fetch, $glob_spec) = @_; return unless defined $glob_spec; my $ref = $glob_spec->{ref}; my $path = $glob_spec->{path}; foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) { next unless m#^refs/remotes/$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 $refname) { die "Refspec conflict:\n", "existing: refs/remotes/$existing\n", " globbed: refs/remotes/$refname\n"; } my $u = (::cmt_metadata("refs/remotes/$refname"))[0]; $u =~ s!^\Q$url\E(/|$)!! or die "refs/remotes/$refname: '$url' not found in '$u'\n"; if ($pathname ne $u) { warn "W: Refspec glob conflict ", "(ref: refs/remotes/$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; 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_db_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 $r = {}; foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) { if (m!^(.+)\.fetch=\s*(.*)\s*:\s*refs/remotes/(.+)\s*$!) { my ($remote, $local_ref, $remote_ref) = ($1, $2, $3); $local_ref =~ s{^/}{}; $r->{$remote}->{fetch}->{$local_ref} = $remote_ref; } elsif (m!^(.+)\.url=\s*(.*)\s*$!) { $r->{$1}->{url} = $2; } elsif (m!^(.+)\.(branches|tags)= (.*):refs/remotes/(.+)\s*$/!x) { my ($p, $g) = ($3, $4); my $rs = $r->{$1}->{$2} = { t => $2, remote => $1, path => Git::SVN::GlobSpec->new($p), ref => Git::SVN::GlobSpec->new($g) }; if (length($rs->{ref}->{right}) != 0) { die "The '*' glob character must be the last ", "character of '$g'\n"; } } } $r; } sub init_vars { if (defined $_repack) { $_repack = 1000 if ($_repack <= 0); $_repack_nr = $_repack; $_repack_flags ||= '-d'; } } 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} = $_; } } } # we allow more chars than remotes2config.sh... sub sanitize_remote_name { my ($name) = @_; $name =~ tr{A-Za-z0-9:,/+-}{.}c; $name; } sub find_existing_remote { my ($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 (defined $xpath) { die "svn-remote.$xrepo_id.fetch already set to track ", "$xpath:refs/remotes/", $self->refname, "\n"; } unless ($no_write) { command_noisy('config', "svn-remote.$self->{repo_id}.url", $url); $self->{path} =~ s{^/}{}; command_noisy('config', '--add', "svn-remote.$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 (qw/branches tags/) { resolve_local_globs($u, $fetch, $remotes->{$repo_id}->{$_}); } my $p = $path; unless (defined $p) { $p = $full_url; $p =~ s#^\Q$u\E(?:/|$)## 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*refs/remotes/(.+)\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 $repo_id) { die "Could not find a \"svn-remote.*.fetch\" key ", "in the repository configuration matching: ", "refs/remotes/$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", ":refs/remotes/$ref_id\$") or die "Failed to read \"svn-remote.$repo_id.fetch\" ", "\":refs/remotes/$ref_id\$\" in config\n"; ($self->{path}, undef) = split(/\s*:\s*/, $fetch); } $self->{url} = command_oneline('config', '--get', "svn-remote.$repo_id.url") or die "Failed to read \"svn-remote.$repo_id.url\" in config\n"; $self->rebuild; $self; } sub refname { my ($refname) = "refs/remotes/$_[0]->{ref_id}" ; # It cannot end with a slash /, we'll throw up on this because # SVN can't have directories with a slash in their name, either: if ($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; 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); $uuid =~ m{^[0-9a-f\-]{30,}$} 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"; } my $svnsync; # see if we have it in our config, first: eval { my $section = "svn-remote.$self->{repo_id}"; $svnsync = { url => tmp_config('--get', "$section.svnsync-url"), uuid => tmp_config('--get', "$section.svnsync-uuid"), } }; if ($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"; $url =~ m{^[a-z\+]+://} or die "doesn't look right - svn:sync-from-url is '$url'\n"; my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n"; $uuid =~ m{^[0-9a-f\-]{30,}$} 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 && $uuid =~ /^([a-f\d\-]{30,})$/) { $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}); } } $self->{ra_uuid}; } sub ra { my ($self) = shift; my $ra = Git::SVN::Ra->new($self->{url}); 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; } $ra; } sub rel_path { my ($self) = @_; my $repos_root = $self->ra->{repos_root}; return $self->{path} if ($self->{url} eq $repos_root); my $url = $self->{url} . (length $self->{path} ? "/$self->{path}" : $self->{path}); $url =~ s!^\Q$repos_root\E(?:/+|$)!!g; $url; } # prop_walk(PATH, REV, SUB) # ------------------------- # Recursively traverse PATH at revision REV and invoke SUB for each # directory that contains a SVN property. SUB will be invoked as # follows: &SUB(gs, path, props); where `gs' is this instance of # Git::SVN, `path' the path to the directory where the properties # `props' were found. The `path' will be relative to point of checkout, # that is, if url://repo/trunk is the current Git branch, and that # directory contains a sub-directory `d', SUB will be invoked with `/d/' # as `path' (note the trailing `/'). sub prop_walk { my ($self, $path, $rev, $sub) = @_; my ($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; $self->prop_walk($path . '/' . $_, $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 $db_path = $self->db_path; unless (-e $db_path) { ($self->{last_rev}, $self->{last_commit}) = (undef, undef); return (undef, undef); } my $offset = -41; # from tail my $rl; open my $fh, '<', $db_path or croak "$db_path not readable: $!\n"; sysseek($fh, $offset, 2); # don't care for errors sysread($fh, $rl, 41) == 41 or return (undef, undef); chomp $rl; while (('0' x40) eq $rl && sysseek($fh, 0, 1) != 0) { $offset -= 41; sysseek($fh, $offset, 2); # don't care for errors sysread($fh, $rl, 41) == 41 or return (undef, undef); chomp $rl; } if ($c && $c ne $rl) { die "$db_path and ", $self->refname, " inconsistent!:\n$c != $rl\n"; } my $rev = sysseek($fh, 0, 1) or croak $!; $rev = ($rev - 41) / 41; close $fh or croak $!; ($self->{last_rev}, $self->{last_commit}) = ($rev, $c); return ($rev, $c); } sub get_fetch_range { my ($self, $min, $max) = @_; $max ||= $self->ra->get_latest_revnum; $min ||= $self->rev_db_max; (++$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, $p; # MAXPARENT is defined to 16 in commit-tree.c: last if @ret >= 16; } if (@tmp) { die "r$log_entry->{revision}: No room for parents:\n\t", join("\n\t", @tmp), "\n"; } @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} = $rwr; } sub metadata_url { my ($self) = @_; ($self->rewrite_root || $self->{url}) . (length $self->{path} ? '/' . $self->{path} : ''); } sub full_url { my ($self) = @_; $self->{url} . (length $self->{path} ? '/' . $self->{path} : ''); } sub do_git_commit { my ($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 = $self->rev_db_get($log_entry->{revision})) { croak "$log_entry->{revision} = $c already exists! ", "Why are we refetching it?\n"; } $ENV{GIT_AUTHOR_NAME} = $ENV{GIT_COMMITTER_NAME} = $log_entry->{name}; $ENV{GIT_AUTHOR_EMAIL} = $ENV{GIT_COMMITTER_EMAIL} = $log_entry->{email}; $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date}; 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 $!; print $msg_fh $log_entry->{log} or croak $!; unless ($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"; } $self->rev_db_set($log_entry->{revision}, $commit, 1); $self->{last_rev} = $log_entry->{revision}; $self->{last_commit} = $commit; print "r$log_entry->{revision}"; if (defined $log_entry->{svm_revision}) { print " (\@$log_entry->{svm_revision})"; $self->rev_db_set($log_entry->{svm_revision}, $commit, 0, $self->svm_uuid); } print " = $commit ($self->{ref_id})\n"; if (defined $_repack && (--$_repack_nr == 0)) { $_repack_nr = $_repack; # repack doesn't use any arguments with spaces in them, does it? print "Running git repack $_repack_flags ...\n"; command_noisy('repack', split(/\s+/, $_repack_flags)); print "Done repacking\n"; } 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 { $paths = Git::SVN::Ra::dup_changed_paths($_[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->rel_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 = $repos_root . $branch_from; print STDERR "Found possible branch point: ", "$new_url => ", $self->full_url, ", $r\n"; $branch_from =~ s#^/##; my $gs = Git::SVN->find_by_url($new_url, $repos_root, $branch_from); unless ($gs) { my $ref_id = $self->{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); print STDERR "Initializing parent: $ref_id\n"; $gs = Git::SVN->init($new_url, '', $ref_id, $ref_id, 1); } my ($r0, $parent) = $gs->find_rev_before($r, 1); if (!defined $r0 || !defined $parent) { my ($base, $head) = parse_revision_argument(0, $r); if ($base <= $r) { $gs->fetch($base, $r); } ($r0, $parent) = $gs->last_rev_commit; } if (defined $r0 && defined $parent) { print STDERR "Found branch parent: ($self->{ref_id}) $parent\n"; my $ed; if ($self->ra->can_do_switch) { $self->assert_index_clean($parent); print STDERR "Following parent with do_switch\n"; # 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_commit} = $parent; $ed = SVN::Git::Fetcher->new($self); $gs->ra->gs_do_switch($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"; $self->tmp_index_do(sub { command_noisy('read-tree', $parent); }); $self->{last_commit} = $parent; } else { print STDERR "Following parent with do_update\n"; $ed = SVN::Git::Fetcher->new($self); $self->ra->gs_do_update($rev, $rev, $self, $ed) or die "SVN connection failed somewhere...\n"; } print STDERR "Successfully followed parent\n"; 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, $ed); } sub get_untracked { my ($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; } 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"; "+0000 $Y-$m-$d $H:$M:$S"; } sub check_author { my ($author) = @_; if (!defined $author || length $author == 0) { $author = '(no author)'; } if (defined $::_authors && ! defined $::users{$author}) { die "Author: $author not defined in $::_authors file\n"; } $author; } sub make_log_entry { my ($self, $rev, $parents, $ed) = @_; my $untracked = $self->get_untracked($ed); 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); if (defined $headrev && $self->use_svm_props) { if ($self->rewrite_root) { die "Can't have both 'useSvmProps' and 'rewriteRoot' ", "options set!\n"; } my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$}; # 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\@$uuid" } elsif ($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" } else { my $url = $self->metadata_url; remove_username($url); $log_entry{metadata} = "$url\@$rev " . $self->ra->get_uuid; $email ||= "$author\@" . $self->ra->get_uuid; } $log_entry{name} = $name; $log_entry{email} = $email; \%log_entry; } sub fetch { my ($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} = $tree\n"; } } sub rebuild { my ($self) = @_; my $db_path = $self->db_path; return if (-e $db_path && ! -z $db_path); return unless ::verify_ref($self->refname.'^0'); if (-f $self->{db_root}) { rename $self->{db_root}, $db_path or die "rename $self->{db_root} => $db_path failed: $!\n"; my ($dir, $base) = ($db_path =~ m#^(.*?)/?([^/]+)$#); symlink $base, $self->{db_root} or die "symlink $base => $self->{db_root} failed: $!\n"; return; } print "Rebuilding $db_path ...\n"; my ($log, $ctx) = command_output_pipe("log", '--no-color', $self->refname); my $latest; my $full_url = $self->full_url; remove_username($full_url); my $svn_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 ((defined $svn_uuid && ($uuid ne $svn_uuid)) || ($full_url && $url && ($url ne $full_url))) { next; } $latest ||= $rev; $svn_uuid ||= $uuid; $self->rev_db_set($rev, $c); print "r$rev = $c\n"; } command_close_pipe($log, $ctx); print "Done rebuilding $db_path\n"; } # rev_db: # Tie::File seems to be prone to offset errors if revisions get sparse, # it's not that fast, either. Tie::File is also not in Perl 5.6. So # one of my favorite modules is out :< Next up would be one of the DBM # modules, but I'm not sure which is most portable... So I'll just # go with something that's plain-text, but still capable of # being randomly accessed. So here's my ultra-simple fixed-width # database. All records are 40 characters + "\n", so it's easy to seek # to a revision: (41 * rev) is the byte offset. # A record of 40 0s denotes an empty revision. # And yes, it's still pretty fast (faster than Tie::File). # These files are disposable unless noMetadata or useSvmProps is set sub _rev_db_set { my ($fh, $rev, $commit) = @_; my $offset = $rev * 41; # assume that append is the common case: seek $fh, 0, 2 or croak $!; my $pos = tell $fh; if ($pos < $offset) { for (1 .. (($offset - $pos) / 41)) { print $fh (('0' x 40),"\n") or croak $!; } } seek $fh, $offset, 0 or croak $!; print $fh $commit,"\n" or croak $!; } sub mkfile { my ($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: $!\n"; } } sub rev_db_set { my ($self, $rev, $commit, $update_ref, $uuid) = @_; length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n"; my $db = $self->db_path($uuid); my $db_lock = "$db.lock"; my $sig; if ($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, $db_lock) or die "rev_db_set(@_): ", "Failed to copy: ", "$db => $db_lock ($!)\n"; } else { rename $db, $db_lock or die "rev_db_set(@_): ", "Failed to rename: ", "$db => $db_lock ($!)\n"; } open my $fh, '+<', $db_lock or die "Couldn't open $db_lock: $!\n"; _rev_db_set($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 = $self; command_noisy('update-ref', '-m', "r$rev", $self->refname, $commit); } rename $db_lock, $db or die "rev_db_set(@_): ", "Failed to rename: ", "$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 $sig; } } sub rev_db_max { my ($self) = @_; $self->rebuild; my $db_path = $self->db_path; my @stat = stat $db_path or return 0; ($stat[7] % 41) == 0 or die "$db_path inconsistent size: $stat[7]\n"; my $max = $stat[7] / 41; (($max > 0) ? $max - 1 : 0); } sub rev_db_get { my ($self, $rev, $uuid) = @_; my $ret; my $offset = $rev * 41; my $db_path = $self->db_path($uuid); return undef unless -e $db_path; open my $fh, '<', $db_path or croak $!; if (sysseek($fh, $offset, 0) == $offset) { my $read = sysread($fh, $ret, 40); $ret = undef if ($read != 40 || $ret eq ('0'x40)); } close $fh or croak $!; $ret; } sub find_rev_before { my ($self, $rev, $eq_ok) = @_; --$rev unless $eq_ok; while ($rev > 0) { if (my $c = $self->rev_db_get($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) { $_[2] = $ref_id = $Git::SVN::default_ref_id; } $_[1] = $repo_id = sanitize_remote_name($repo_id); my $dir = "$ENV{GIT_DIR}/svn/$ref_id"; $_[3] = $path = '' unless (defined $path); mkpath(["$ENV{GIT_DIR}/svn"]); bless { ref_id => $ref_id, dir => $dir, index => "$dir/index", path => $path, config => "$ENV{GIT_DIR}/svn/config", db_root => "$dir/.rev_db", repo_id => $repo_id }, $class; } sub db_path { my ($self, $uuid) = @_; $uuid ||= $self->ra_uuid; "$self->{db_root}.$uuid"; } sub uri_encode { my ($f) = @_; $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($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) = @_; print STDERR $prompt; STDERR->flush; require Term::ReadKey; Term::ReadKey::ReadMode('noecho'); my $password = ''; 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; $password; } package SVN::Git::Fetcher; use vars qw/@ISA/; use strict; use warnings; use Carp qw/croak/; use IO::File qw//; use Digest::MD5; # file baton members: path, mode_a, mode_b, pool, fh, blob, base sub new { my ($class, $git_svn) = @_; my $self = SVN::Delta::Editor->new; bless $self, $class; $self->{c} = $git_svn->{last_commit} if exists $git_svn->{last_commit}; $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 }); $self; } sub set_path_strip { my ($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, $path) = @_; if ($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) = @_; my $gpath = $self->git_path($path); return undef if ($gpath eq ''); # remove entire directories. if (command('ls-tree', $self->{c}, '--', $gpath) =~ /^040000 tree/) { my ($ls, $ctx) = command_output_pipe(qw/ls-tree -r --name-only -z/, $self->{c}, '--', $gpath); local $/ = "\0"; while (<$ls>) { chomp; $self->{gii}->remove($_); print "\tD\t$_\n" unless $::_q; } print "\tD\t$gpath/\n" unless $::_q; command_close_pipe($ls, $ctx); $self->{empty}->{$path} = 0 } else { $self->{gii}->remove($gpath); print "\tD\t$gpath\n" unless $::_q; } undef; } sub open_file { my ($self, $path, $pb, $rev) = @_; my $gpath = $self->git_path($path); my ($mode, $blob) = (command('ls-tree', $self->{c}, '--', $gpath) =~ /^(\d{6}) blob ([a-f\d]{40})\t/); unless (defined $mode && defined $blob) { die "$path was not found in commit $self->{c} (r$rev)\n"; } { 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, $cp_rev) = @_; my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#); delete $self->{empty}->{$dir}; { path => $path, mode_a => 100644, mode_b => 100644, pool => SVN::Pool->new, action => 'A' }; } sub add_directory { my ($self, $path, $cp_path, $cp_rev) = @_; my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#); delete $self->{empty}->{$dir}; $self->{empty}->{$path} = 1; { path => $path }; } sub change_dir_prop { my ($self, $db, $prop, $value) = @_; $self->{dir_prop}->{$db->{path}} ||= {}; $self->{dir_prop}->{$db->{path}}->{$prop} = $value; undef; } sub absent_directory { my ($self, $path, $pb) = @_; $self->{absent_dir}->{$pb->{path}} ||= []; push @{$self->{absent_dir}->{$pb->{path}}}, $path; undef; } sub absent_file { my ($self, $path, $pb) = @_; $self->{absent_file}->{$pb->{path}} ||= []; push @{$self->{absent_file}->{$pb->{path}}}, $path; undef; } sub change_file_prop { my ($self, $fb, $prop, $value) = @_; if ($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) = @_; my $fh = IO::File->new_tmpfile; $fh->autoflush(1); # $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 = IO::File->new_tmpfile; $base->autoflush(1); if ($fb->{blob}) { defined (my $pid = fork) or croak $!; if (!$pid) { open STDOUT, '>&', $base or croak $!; print STDOUT 'link ' if ($fb->{mode_a} == 120000); exec qw/git-cat-file blob/, $fb->{blob} or croak $!; } waitpid $pid, 0; croak $? if $?; if (defined $exp) { seek $base, 0, 0 or croak $!; my $md5 = Digest::MD5->new; $md5->addfile($base); my $got = $md5->hexdigest; die "Checksum mismatch: $fb->{path} $fb->{blob}\n", "expected: $exp\n", " got: $got\n" if ($got ne $exp); } } seek $base, 0, 0 or croak $!; $fb->{fh} = $dup; $fb->{base} = $base; [ SVN::TxDelta::apply($base, $fh, undef, $fb->{path}, $fb->{pool}) ]; } sub close_file { my ($self, $fb, $exp) = @_; my $hash; my $path = $self->git_path($fb->{path}); if (my $fh = $fb->{fh}) { if (defined $exp) { seek($fh, 0, 0) or croak $!; my $md5 = Digest::MD5->new; $md5->addfile($fh); my $got = $md5->hexdigest; if ($got ne $exp) { die "Checksum mismatch: $path\n", "expected: $exp\n got: $got\n"; } } sysseek($fh, 0, 0) or croak $!; if ($fb->{mode_b} == 120000) { sysread($fh, my $buf, 5) == 5 or croak $!; $buf eq 'link ' or die "$path has mode 120000", "but is not a link\n"; } defined(my $pid = open my $out,'-|') or die "Can't fork: $!\n"; if (!$pid) { open STDIN, '<&', $fh or croak $!; exec qw/git-hash-object -w --stdin/ or croak $!; } chomp($hash = do { local $/; <$out> }); close $out or croak $!; close $fh or croak $!; $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n"; close $fb->{base} or croak $!; } 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; $self->{git_commit_ok} = 1; $self->{nr} = $self->{gii}->{nr}; delete $self->{gii}; $self->SUPER::close_edit(@_); } package SVN::Git::Editor; use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/; use strict; use warnings; use Carp qw/croak/; use IO::File; use Digest::MD5; sub new { my ($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}/" : ''; 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_b => $3, chg => $4 }; if ($4 =~ /^(?:C|R)$/) { $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) = @_; $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}; } 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; $self->chg_file($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; $self->chg_file($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, $self->{pool}); } sub chg_file { my ($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 = IO::File->new_tmpfile or croak $!; if ($m->{mode_b} =~ /^120/) { print $fh 'link ' or croak $!; $self->change_file_prop($fbat,'svn:special','*'); } elsif ($m->{mode_a} =~ /^120/ && $m->{mode_b} !~ /^120/) { $self->change_file_prop($fbat,'svn:special',undef); } defined(my $pid = fork) or croak $!; if (!$pid) { open STDOUT, '>&', $fh or croak $!; exec qw/git-cat-file blob/, $m->{sha1_b} or croak $!; } waitpid $pid, 0; croak $? if $?; $fh->flush == 0 or croak $!; seek $fh, 0, 0 or croak $!; my $md5 = Digest::MD5->new; $md5->addfile($fh) or croak $!; seek $fh, 0, 0 or croak $!; my $exp = $md5->hexdigest; my $pool = SVN::Pool->new; my $atd = $self->apply_textdelta($fbat, undef, $pool); my $got = SVN::TxDelta::send_stream($fh, @$atd, $pool); die "Checksum mismatch\nexpected: $exp\ngot: $got\n" if ($got ne $exp); $pool->clear; close $fh or croak $!; } sub D { my ($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"); } } $self->rmdirs if $_rmdir; if (@$mods == 0) { $self->abort_edit; } else { $self->close_edit; } return scalar @$mods; } package Git::SVN::Ra; use vars qw/@ISA $config_dir $_log_window_size/; use strict; use warnings; my ($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/) { my $SUPER = "SUPER::$f"; *$f = sub { my $self = shift; my $pool = SVN::Pool->new; my @ret = $self->$SUPER(@_,$pool); $pool->clear; wantarray ? @ret : $ret[0]; }; } } sub _auth_providers () { [ SVN::Client::get_simple_provider(), SVN::Client::get_ssl_server_trust_file_provider(), SVN::Client::get_simple_prompt_provider( \&Git::SVN::Prompt::simple, 2), SVN::Client::get_ssl_client_cert_file_provider(), SVN::Client::get_ssl_client_cert_prompt_provider( \&Git::SVN::Prompt::ssl_client_cert, 2), SVN::Client::get_ssl_client_cert_pw_prompt_provider( \&Git::SVN::Prompt::ssl_client_cert_pw, 2), SVN::Client::get_username_provider(), SVN::Client::get_ssl_server_trust_prompt_provider( \&Git::SVN::Prompt::ssl_server_trust), SVN::Client::get_username_prompt_provider( \&Git::SVN::Prompt::username, 2) ] } sub new { my ($class, $url) = @_; $url =~ s!/+$!!; return $RA if ($RA && $RA->{url} eq $url); SVN::_Core::svn_config_ensure($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 => $url, auth => $baton, config => $config, pool => SVN::Pool->new, auth_provider_callbacks => $callbacks); $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 $RA } sub get_log { my ($self, @args) = @_; my $pool = SVN::Pool->new; splice(@args, 3, 1) if ($SVN::Core::VERSION le '1.2.0'); 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 ne $full_url) { if ($old_url !~ m#^svn(\+ssh)?://#) { SVN::_Ra::svn_ra_reparent($self->{session}, $full_url, $pool); $self->{url} = $full_url; $reparented = 1; } else { $_[0] = undef; $self = undef; $RA = undef; $ra = Git::SVN::Ra->new($full_url); $ra_invalid = 1; } } $ra ||= $self; 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}; 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, $log) = @_; [ dup_changed_paths($paths), { author => $author, date => $date, log => $log } ]; } $self->get_log([$longest_path], $min, $max, 0, 1, 1, sub { $revs{$_[1]} = _cb(@_) }); if ($err && $max >= $head) { print STDERR "Path '$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; } } } $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_db_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); } } 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 defined $gs->rev_db_get($max); $gs->rev_db_set($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 > $head); } } sub match_globs { my ($self, $exists, $paths, $globs, $r) = @_; sub get_dir_check { my ($self, $exists, $g, $r) = @_; my @x = eval { $self->get_dir($g->{path}->{left}, $r) }; return unless scalar @x == 3; my $dirents = $x[0]; foreach my $de (keys %$dirents) { next if $dirents->{$de}->{kind} != $SVN::Node::dir; 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)); $exists->{$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 $exists->{$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 { (ref $self)->new($url)->get_latest_revnum }; } 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"; $ignored_err{$err_key} = 1; } return; } die "Error from SVN, ($errno): ", $err->expanded_message,"\n"; } # svn_log_changed_path_t objects passed to get_log are likely to be # overwritten even if only the refs are copied to an external variable, # so we should dup the structures in their entirety. Using an externally # passed pool (instead of our temporary and quickly cleared pool in # Git::SVN::Ra) does not help matters at all... sub dup_changed_paths { my ($paths) = @_; return undef unless $paths; my %ret; foreach my $p (keys %$paths) { my $i = $paths->{$p}; my %s = map { $_ => $i->$_ } qw/copyfrom_path copyfrom_rev action/; $ret{$p} = \%s; } \%ret; } package Git::SVN::Log; use strict; use warnings; use POSIX qw/strftime/; 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 1 if $color; my ($dc, $dcvar); $dcvar = 'color.diff'; $dc = `git-config --get $dcvar`; if ($dc eq '') { # nothing at all; fallback to "diff.color" $dcvar = 'diff.color'; $dc = `git-config --get $dcvar`; } chomp($dc); if ($dc eq 'auto') { my $pc; $pc = `git-config --get color.pager`; if ($pc eq '') { # does not have it -- fallback to pager.color $pc = `git-config --bool --get pager.color`; } else { $pc = `git-config --bool --get color.pager`; if ($?) { $pc = 'false'; } } chomp($pc); if (-t *STDOUT || (defined $pager && $pc eq 'true')) { return ($ENV{TERM} && $ENV{TERM} ne 'dumb'); } return 0; } return 0 if $dc eq 'never'; return 1 if $dc eq 'always'; chomp($dc = `git-config --bool --get $dcvar`); return ($dc eq 'true'); } 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 = $gs->rev_db_get($r_max)) { push @cmd, $c; } } elsif (defined $r_max) { my ($c_min, $c_max); $c_max = $gs->rev_db_get($r_max); $c_min = $gs->rev_db_get($r_min); if (defined $c_min && defined $c_max) { if ($r_max > $r_max) { push @cmd, "$c_min..$c_max"; } else { push @cmd, "$c_max..$c_min"; } } elsif ($r_max > $r_min) { push @cmd, $c_max; } else { push @cmd, $c_min; } } return (@cmd, @files); } # adapted from pager.c sub config_pager { $pager ||= $ENV{GIT_PAGER} || $ENV{PAGER}; if (!defined $pager) { $pager = 'less'; } elsif (length $pager == 0 || $pager eq 'cat') { $pager = undef; } } sub run_pager { return unless -t *STDOUT && defined $pager; pipe my $rfd, my $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 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} = $au; # Date::Parse isn't in the standard Perl distro :( if ($tz =~ s/^\+//) { $t += tz_to_s_offset($tz); } elsif ($tz =~ s/^\-//) { $t -= tz_to_s_offset($tz); } $dest->{t_utc} = $t; } sub process_commit { my ($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 ($c) = @_; print '-' x72, "\nr$c->{r} | "; print "$c->{c} | " if $show_commit; print "$c->{a} | ", strftime("%Y-%m-%d %H:%M:%S %z (%a, %d %b %Y)", localtime($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 if (defined $TZ) { $ENV{TZ} = $TZ; } else { delete $ENV{TZ}; } 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); 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) { my $swap = $r_max; $r_max = $r_min; $r_min = $swap; process_commit($_, $r_min, $r_max) foreach reverse @k; } out: close $log; print '-' x72,"\n" unless $incremental || $oneline; } package Git::SVN::Migration; # these version numbers do NOT correspond to actual version numbers # of git nor git-svn. They are just relative. # # v0 layout: .git/$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) 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 $ra->{repos_root}) || (Git::SVN::sanitize_remote_name($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} || Git::SVN::sanitize_remote_name($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}:". "refs/remotes/$x->{ref_id}"); command_noisy(qw/config --unset/, "$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} || $ENV{GIT_CONFIG_LOCAL} || "$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) = @_; my $re = $glob; $re =~ s!/+$!!g; # no need for trailing slashes my $nr = ($re =~ s!^(.*)\*(.*)$!\(\[^/\]+\)!g); my ($left, $right) = ($1, $2); if ($nr > 1) { die "Only one '*' wildcard expansion ", "is supported (got $nr): '$glob'\n"; } elsif ($nr == 0) { die "One '*' is needed for glob: '$glob'\n"; } $re = quotemeta($left) . $re . quotemeta($right); if (length $left && !($left =~ s!/+$!!g)) { die "Missing trailing '/' on left side of: '$glob' ($left)\n"; } if (length $right && !($right =~ s!^/+!!g)) { die "Missing leading '/' on right side of: '$glob' ($right)\n"; } my $left_re = qr/^\/\Q$left\E(\/|$)/; bless { left => $left, right => $right, left_regex => $left_re, regex => qr/$re/, glob => $glob }, $class; } sub full_path { my ($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.