diff options
Diffstat (limited to 'git-svn.perl')
| -rwxr-xr-x | git-svn.perl | 5058 |
1 files changed, 2964 insertions, 2094 deletions
diff --git a/git-svn.perl b/git-svn.perl index d792a62d7c..326e89fe03 100755 --- a/git-svn.perl +++ b/git-svn.perl @@ -4,33 +4,21 @@ use warnings; use strict; use vars qw/ $AUTHOR $VERSION - $SVN_URL $SVN_INFO $SVN_WC $SVN_UUID - $GIT_SVN_INDEX $GIT_SVN - $GIT_DIR $GIT_SVN_DIR $REVDB/; + $sha1 $sha1_short $_revision + $_q $_authors %users/; $AUTHOR = 'Eric Wong <normalperson@yhbt.net>'; $VERSION = '@@GIT_VERSION@@'; -use Cwd qw/abs_path/; -$GIT_DIR = abs_path($ENV{GIT_DIR} || '.git'); -$ENV{GIT_DIR} = $GIT_DIR; +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; -my $LC_ALL = $ENV{LC_ALL}; -my $TZ = $ENV{TZ}; -# make sure the svn binary gives consistent output between locales and TZs: +$Git::SVN::Log::TZ = $ENV{TZ}; $ENV{TZ} = 'UTC'; -$ENV{LC_ALL} = 'C'; $| = 1; # unbuffer STDOUT -# properties that we do not log: -my %SKIP = ( 'svn:wc:ra_dav:version-url' => 1, - 'svn:special' => 1, - 'svn:executable' => 1, - 'svn:entry:committed-rev' => 1, - 'svn:entry:last-author' => 1, - 'svn:entry:uuid' => 1, - 'svn:entry:committed-date' => 1, -); - sub fatal (@) { print STDERR @_; exit 1 } require SVN::Core; # use()-ing this causes segfaults for me... *shrug* require SVN::Ra; @@ -38,120 +26,129 @@ require SVN::Delta; if ($SVN::Core::VERSION lt '1.1.0') { fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)\n"; } +push @Git::SVN::Ra::ISA, 'SVN::Ra'; push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor'; push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor'; -*SVN::Git::Fetcher::process_rm = *process_rm; 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 pass_through/; -use POSIX qw/strftime/; use IPC::Open3; -use Memoize; -use Git qw/command command_oneline command_noisy - command_output_pipe command_input_pipe command_close_pipe/; -memoize('revisions_eq'); -memoize('cmt_metadata'); -memoize('get_commit_time'); +use Git; + +BEGIN { + my $s; + foreach (qw/command command_oneline command_noisy command_output_pipe + command_input_pipe command_close_pipe/) { + $s .= "*SVN::Git::Editor::$_ = *SVN::Git::Fetcher::$_ = ". + "*Git::SVN::Migration::$_ = ". + "*Git::SVN::Log::$_ = *Git::SVN::$_ = *$_ = *Git::$_; "; + } + eval $s; +} my ($SVN); -my $_optimize_commits = 1 unless $ENV{GIT_SVN_NO_OPTIMIZE_COMMITS}; -my $sha1 = qr/[a-f\d]{40}/; -my $sha1_short = qr/[a-f\d]{4,40}/; -my $_esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/; -my ($_revision,$_stdin,$_no_ignore_ext,$_no_stop_copy,$_help,$_rmdir,$_edit, - $_find_copies_harder, $_l, $_cp_similarity, $_cp_remote, - $_repack, $_repack_nr, $_repack_flags, $_q, - $_message, $_file, $_follow_parent, $_no_metadata, - $_template, $_shared, $_no_default_regex, $_no_graft_copy, - $_limit, $_verbose, $_incremental, $_oneline, $_l_fmt, $_show_commit, - $_version, $_upgrade, $_authors, $_branch_all_refs, @_opt_m, - $_merge, $_strategy, $_dry_run, $_ignore_nodate, $_non_recursive, - $_username, $_config_dir, $_no_auth_cache, - $_pager, $_color, $_prefix); -my (@_branch_from, %tree_map, %users, %rusers, %equiv); -my ($_svn_can_do_switch); -my @repo_path_split_cache; - -my %fc_opts = ( 'no-ignore-externals' => \$_no_ignore_ext, - 'branch|b=s' => \@_branch_from, - 'follow-parent|follow' => \$_follow_parent, - 'branch-all-refs|B' => \$_branch_all_refs, +$sha1 = qr/[a-f\d]{40}/; +$sha1_short = qr/[a-f\d]{4,40}/; +my ($_stdin, $_help, $_edit, + $_message, $_file, + $_template, $_shared, + $_version, $_fetch_all, + $_merge, $_strategy, $_dry_run, + $_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' => \$_repack, - 'no-metadata' => \$_no_metadata, + '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, - 'username=s' => \$_username, - 'config-dir=s' => \$_config_dir, - 'no-auth-cache' => \$_no_auth_cache, - 'ignore-nodate' => \$_ignore_nodate, - 'repack-flags|repack-args|repack-opts=s' => \$_repack_flags); + 'repack-flags|repack-args|repack-opts=s' => + \$Git::SVN::_repack_flags, + %remote_opts ); my ($_trunk, $_tags, $_branches); -my %multi_opts = ( 'trunk|T=s' => \$_trunk, - 'tags|t=s' => \$_tags, - 'branches|b=s' => \$_branches ); -my %init_opts = ( 'template=s' => \$_template, 'shared' => \$_shared ); +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, + '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' => \$_rmdir, - 'find-copies-harder' => \$_find_copies_harder, - 'l=i' => \$_l, - 'copy-similarity|C=i'=> \$_cp_similarity + '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, %fc_opts } ], - init => [ \&init, "Initialize a repo for tracking" . + { '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 ], - dcommit => [ \&dcommit, 'Commit several diffs to merge with upstream', + '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, %cmt_opts, %fc_opts } ], - 'set-tree' => [ \&commit, "Set an SVN repository to a git tree-ish", - { 'stdin|' => \$_stdin, %cmt_opts, %fc_opts, } ], - 'show-ignore' => [ \&show_ignore, "Show svn:ignore listings", + 'set-tree' => [ \&cmd_set_tree, + "Set an SVN repository to a git tree-ish", + { 'stdin|' => \$_stdin, %cmt_opts, %fc_opts, } ], + 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings", { 'revision|r=i' => \$_revision } ], - rebuild => [ \&rebuild, "Rebuild git-svn metadata (after git clone)", - { 'no-ignore-externals' => \$_no_ignore_ext, - 'copy-remote|remote=s' => \$_cp_remote, - 'upgrade' => \$_upgrade } ], - 'graft-branches' => [ \&graft_branches, - 'Detect merges/branches from already imported history', - { 'merge-rx|m' => \@_opt_m, - 'branch|b=s' => \@_branch_from, - 'branch-all-refs|B' => \$_branch_all_refs, - 'no-default-regex' => \$_no_default_regex, - 'no-graft-copy' => \$_no_graft_copy } ], - 'multi-init' => [ \&multi_init, - 'Initialize multiple trees (like git-svnimport)', - { %multi_opts, %init_opts, - 'revision|r=i' => \$_revision, - 'username=s' => \$_username, - 'config-dir=s' => \$_config_dir, - 'no-auth-cache' => \$_no_auth_cache, - 'prefix=s' => \$_prefix, - } ], - 'multi-fetch' => [ \&multi_fetch, - 'Fetch multiple trees (like git-svnimport)', - \%fc_opts ], - 'log' => [ \&show_log, 'Show commit logs', - { 'limit=i' => \$_limit, + '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' => \$_verbose, - 'incremental' => \$_incremental, - 'oneline' => \$_oneline, - 'show-commit' => \$_show_commit, - 'non-recursive' => \$_non_recursive, + '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' => \$_color, - 'pager=s' => \$_pager, + 'color' => \$Git::SVN::Log::color, + 'pager=s' => \$Git::SVN::Log::pager, } ], - 'commit-diff' => [ \&commit_diff, 'Commit a diff between two trees', + 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory", + { 'merge|m|M' => \$_merge, + 'verbose|v' => \$_verbose, + 'strategy|s=s' => \$_strategy, + '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, @@ -170,20 +167,50 @@ for (my $i = 0; $i < @ARGV; $i++) { my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd); read_repo_config(\%opts); -my $rv = GetOptions(%opts, 'help|H|h' => \$_help, - 'version|V' => \$_version, - 'id|i=s' => \$GIT_SVN); +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 ne 'log'); -set_default_vals(); usage(0) if $_help; version() if $_version; usage(1) unless defined $cmd; -init_vars(); load_authors() if $_authors; -load_all_refs() if $_branch_all_refs; -migration_check() unless $cmd =~ /^(?:init|rebuild|multi-init|commit-diff)$/; -$cmd{$cmd}->[0]->(@ARGV); + +# 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 ###################### @@ -198,6 +225,7 @@ Usage: $0 <command> [options] [arguments]\n 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 (keys %{$cmd{$_}->[2]}) { # prints out arguments as they should be passed: @@ -221,173 +249,79 @@ sub version { exit 0; } -sub rebuild { - if (!verify_ref("refs/remotes/$GIT_SVN^0")) { - copy_remote_ref(); - } - $SVN_URL = shift or undef; - my $newest_rev = 0; - if ($_upgrade) { - command_noisy('update-ref',"refs/remotes/$GIT_SVN"," - $GIT_SVN-HEAD"); - } else { - check_upgrade_needed(); - } - - my ($rev_list, $ctx) = command_output_pipe("rev-list", - "refs/remotes/$GIT_SVN"); - my $latest; - while (<$rev_list>) { - chomp; - my $c = $_; - croak "Non-SHA1: $c\n" unless $c =~ /^$sha1$/o; - my @commit = grep(/^git-svn-id: /, - command(qw/cat-file commit/, $c)); - next if (!@commit); # skip merges - my ($url, $rev, $uuid) = extract_metadata($commit[$#commit]); - if (!defined $rev || !$uuid) { - croak "Unable to extract revision or UUID from ", - "$c, $commit[$#commit]\n"; - } - - # if we merged or otherwise started elsewhere, this is - # how we break out of it - next if (defined $SVN_UUID && ($uuid ne $SVN_UUID)); - next if (defined $SVN_URL && defined $url && ($url ne $SVN_URL)); - - unless (defined $latest) { - if (!$SVN_URL && !$url) { - croak "SVN repository location required: $url\n"; - } - $SVN_URL ||= $url; - $SVN_UUID ||= $uuid; - setup_git_svn(); - $latest = $rev; - } - revdb_set($REVDB, $rev, $c); - print "r$rev = $c\n"; - $newest_rev = $rev if ($rev > $newest_rev); - } - command_close_pipe($rev_list, $ctx); -} - -sub init { - my $url = shift or die "SVN repository location required " . - "as a command-line argument\n"; - $url =~ s!/+$!!; # strip trailing slash - - if (my $repo_path = shift) { - unless (-d $repo_path) { - mkpath([$repo_path]); - } - $GIT_DIR = $ENV{GIT_DIR} = $repo_path . "/.git"; - init_vars(); - } - - $SVN_URL = $url; - unless (-d $GIT_DIR) { +sub do_git_init_db { + unless (-d $ENV{GIT_DIR}) { my @init_db = ('init'); push @init_db, "--template=$_template" if defined $_template; - push @init_db, "--shared" if defined $_shared; + if (defined $_shared) { + if ($_shared =~ /[a-z]/) { + push @init_db, "--shared=$_shared"; + } else { + push @init_db, "--shared"; + } + } command_noisy(@init_db); } - setup_git_svn(); + 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 = $i; + } } -sub cmd_fetch { - fetch_child_id($GIT_SVN, @_); +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 fetch { - check_upgrade_needed(); - $SVN_URL ||= file_to_s("$GIT_SVN_DIR/info/url"); - my $ret = fetch_lib(@_); - if ($ret->{commit} && !verify_ref('refs/heads/master^0')) { - command_noisy(qw(update-ref refs/heads/master),$ret->{commit}); +sub cmd_clone { + my ($url, $path) = @_; + if (!defined $path && + (defined $_trunk || defined $_branches || defined $_tags) && + $url !~ m#^[a-z\+]+://#) { + $path = $url; } - return $ret; + $path = basename($url) if !defined $path || !length $path; + cmd_init($url, $path); + Git::SVN::fetch_all($Git::SVN::default_repo_id); } -sub fetch_lib { - my (@parents) = @_; - $SVN_URL ||= file_to_s("$GIT_SVN_DIR/info/url"); - $SVN ||= libsvn_connect($SVN_URL); - my ($last_rev, $last_commit) = svn_grab_base_rev(); - my ($base, $head) = libsvn_parse_revision($last_rev); - if ($base > $head) { - return { revision => $last_rev, commit => $last_commit } +sub cmd_init { + if (defined $_trunk || defined $_branches || defined $_tags) { + return cmd_multi_init(@_); } - my $index = set_index($GIT_SVN_INDEX); + my $url = shift or die "SVN repository location required ", + "as a command-line argument\n"; + init_subdir(@_); + do_git_init_db(); - # limit ourselves and also fork() since get_log won't release memory - # after processing a revision and SVN stuff seems to leak - my $inc = 1000; - my ($min, $max) = ($base, $head < $base+$inc ? $head : $base+$inc); - read_uuid(); - if (defined $last_commit) { - unless (-e $GIT_SVN_INDEX) { - command_noisy('read-tree', $last_commit); - } - my $x = command_oneline('write-tree'); - my ($y) = (command(qw/cat-file commit/, $last_commit) - =~ /^tree ($sha1)/m); - if ($y ne $x) { - unlink $GIT_SVN_INDEX or croak $!; - command_noisy('read-tree', $last_commit); - } - $x = command_oneline('write-tree'); - if ($y ne $x) { - print STDERR "trees ($last_commit) $y != $x\n", - "Something is seriously wrong...\n"; - } + Git::SVN->init($url); +} + +sub cmd_fetch { + if (grep /^\d+=./, @_) { + die "'<rev>=<commit>' fetch arguments are ", + "no longer supported.\n"; } - while (1) { - # fork, because using SVN::Pool with get_log() still doesn't - # seem to help enough to keep memory usage down. - defined(my $pid = fork) or croak $!; - if (!$pid) { - $SVN::Error::handler = \&libsvn_skip_unknown_revs; - - # Yes I'm perfectly aware that the fourth argument - # below is the limit revisions number. Unfortunately - # performance sucks with it enabled, so it's much - # faster to fetch revision ranges instead of relying - # on the limiter. - libsvn_get_log(libsvn_dup_ra($SVN), [''], - $min, $max, 0, 1, 1, - sub { - my $log_msg; - if ($last_commit) { - $log_msg = libsvn_fetch( - $last_commit, @_); - $last_commit = git_commit( - $log_msg, - $last_commit, - @parents); - } else { - $log_msg = libsvn_new_tree(@_); - $last_commit = git_commit( - $log_msg, @parents); - } - }); - exit 0; - } - waitpid $pid, 0; - croak $? if $?; - ($last_rev, $last_commit) = svn_grab_base_rev(); - last if ($max >= $head); - $min = $max + 1; - $max += $inc; - $max = $head if ($max > $head); - $SVN = libsvn_connect($SVN_URL); + 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($remote, Git::SVN::read_all_remotes()); } - restore_index($index); - return { revision => $last_rev, commit => $last_commit }; } -sub commit { +sub cmd_set_tree { my (@commits) = @_; - check_upgrade_needed(); if ($_stdin || !@commits) { print "Reading from stdin...\n"; @commits = (); @@ -405,702 +339,282 @@ sub commit { } elsif (scalar @tmp > 1) { push @revs, reverse(command('rev-list',@tmp)); } else { - die "Failed to rev-parse $c\n"; + fatal "Failed to rev-parse $c\n"; } } - commit_lib(@revs); + 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}\n"; + } + $gs->set_tree($_) foreach @revs; print "Done committing ",scalar @revs," revisions to SVN\n"; } -sub commit_lib { - my (@revs) = @_; - my ($r_last, $cmt_last) = svn_grab_base_rev(); - defined $r_last or die "Must have an existing revision to commit\n"; - my $fetched = fetch(); - if ($r_last != $fetched->{revision}) { - print STDERR "There are new revisions that were fetched ", - "and need to be merged (or acknowledged) ", - "before committing.\n", - "last rev: $r_last\n", - " current: $fetched->{revision}\n"; - exit 1; +sub cmd_dcommit { + my $head = shift; + $head ||= 'HEAD'; + my @refs; + my ($url, $rev, $uuid) = working_head_info($head, \@refs); + my $c = $refs[-1]; + unless (defined $url && defined $rev && defined $uuid) { + die "Unable to determine upstream SVN information from ", + "$head history\n"; } - read_uuid(); - my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : (); - my $commit_msg = "$GIT_SVN_DIR/.svn-commit.tmp.$$"; - - my $repo; - set_svn_commit_env(); - foreach my $c (@revs) { - my $log_msg = get_commit_message($c, $commit_msg); - - # fork for each commit because there's a memory leak I - # can't track down... (it's probably in the SVN code) - defined(my $pid = open my $fh, '-|') or croak $!; - if (!$pid) { - my $ed = SVN::Git::Editor->new( - { r => $r_last, - ra => libsvn_dup_ra($SVN), - c => $c, - svn_path => $SVN->{svn_path}, - }, - $SVN->get_commit_editor( - $log_msg->{msg}, - sub { - libsvn_commit_cb( - @_, $c, - $log_msg->{msg}, - $r_last, - $cmt_last) - }, - @lock) - ); - my $mods = libsvn_checkout_tree($cmt_last, $c, $ed); - if (@$mods == 0) { - print "No changes\nr$r_last = $cmt_last\n"; - $ed->abort_edit; - } else { - $ed->close_edit; - } - exit 0; - } - my ($r_new, $cmt_new, $no); - while (<$fh>) { - print $_; - chomp; - if (/^r(\d+) = ($sha1)$/o) { - ($r_new, $cmt_new) = ($1, $2); - } elsif ($_ eq 'No changes') { - $no = 1; - } - } - close $fh or exit 1; - if (! defined $r_new && ! defined $cmt_new) { - unless ($no) { - die "Failed to parse revision information\n"; - } - } else { - ($r_last, $cmt_last) = ($r_new, $cmt_new); - } - } - $ENV{LC_ALL} = 'C'; - unlink $commit_msg; -} - -sub dcommit { - my $head = shift || 'HEAD'; - my $gs = "refs/remotes/$GIT_SVN"; - my @refs = command(qw/rev-list --no-merges/, "$gs..$head"); + my $gs = Git::SVN->find_by_url($url); my $last_rev; - foreach my $d (reverse @refs) { + foreach my $d (@refs) { if (!verify_ref("$d~1")) { - die "Commit $d\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"; + fatal "Commit $d\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"; } unless (defined $last_rev) { (undef, $last_rev, undef) = cmt_metadata("$d~1"); unless (defined $last_rev) { - die "Unable to extract revision information ", - "from commit $d~1\n"; + fatal "Unable to extract revision information ", + "from commit $d~1\n"; } } if ($_dry_run) { print "diff-tree $d~1 $d\n"; } else { - if (my $r = commit_diff("$d~1", $d, undef, $last_rev)) { - $last_rev = $r; - } # else: no changes, same $last_rev + my %ed_opts = ( r => $last_rev, + log => get_commit_entry($d)->{log}, + ra => Git::SVN::Ra->new($url), + tree_a => "$d~1", + tree_b => $d, + editor_cb => sub { + print "Committed r$_[0]\n"; + $last_rev = $_[0]; }, + svn_path => ''); + if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) { + print "No changes\n$d~1 == $d\n"; + } } } return if $_dry_run; - fetch(); - my @diff = command('diff-tree', 'HEAD', $gs, '--'); + unless ($gs) { + warn "Could not determine fetch information for $url\n", + "Will not attempt to fetch and rebase commits.\n", + "This probably means you have useSvmProps and should\n", + "now resync your SVN::Mirror repository.\n"; + return; + } + $_fetch_all ? $gs->fetch_all : $gs->fetch; + # we always want to rebase against the current HEAD, not any + # head that was passed to us + my @diff = command('diff-tree', 'HEAD', $gs->refname, '--'); my @finish; if (@diff) { - @finish = qw/rebase/; - push @finish, qw/--merge/ if $_merge; - push @finish, "--strategy=$_strategy" if $_strategy; - print STDERR "W: HEAD and $gs differ, using @finish:\n", @diff; + @finish = rebase_cmd(); + print STDERR "W: HEAD and ", $gs->refname, " differ, ", + "using @finish:\n", "@diff"; } else { - print "No changes between current HEAD and $gs\n", - "Resetting to the latest $gs\n"; + print "No changes between current HEAD and ", + $gs->refname, "\nResetting to the latest ", + $gs->refname, "\n"; @finish = qw/reset --mixed/; } - command_noisy(@finish, $gs); -} - -sub show_ignore { - $SVN_URL ||= file_to_s("$GIT_SVN_DIR/info/url"); - my $repo; - $SVN ||= libsvn_connect($SVN_URL); - my $r = defined $_revision ? $_revision : $SVN->get_latest_revnum; - libsvn_traverse_ignore(\*STDOUT, '', $r); + command_noisy(@finish, $gs->refname); } -sub graft_branches { - my $gr_file = "$GIT_DIR/info/grafts"; - my ($grafts, $comments) = read_grafts($gr_file); - my $gr_sha1; - - if (%$grafts) { - # temporarily disable our grafts file to make this idempotent - chomp($gr_sha1 = command(qw/hash-object -w/,$gr_file)); - rename $gr_file, "$gr_file~$gr_sha1" or croak $!; +sub cmd_rebase { + command_noisy(qw/update-index --refresh/); + my $url = (working_head_info('HEAD'))[0]; + if (!defined $url) { + die "Unable to determine upstream SVN information from ", + "working tree history\n"; } - my $l_map = read_url_paths(); - my @re = map { qr/$_/is } @_opt_m if @_opt_m; - unless ($_no_default_regex) { - push @re, (qr/\b(?:merge|merging|merged)\s+with\s+([\w\.\-]+)/i, - qr/\b(?:merge|merging|merged)\s+([\w\.\-]+)/i, - qr/\b(?:from|of)\s+([\w\.\-]+)/i ); - } - foreach my $u (keys %$l_map) { - if (@re) { - foreach my $p (keys %{$l_map->{$u}}) { - graft_merge_msg($grafts,$l_map,$u,$p,@re); - } - } - unless ($_no_graft_copy) { - graft_file_copy_lib($grafts,$l_map,$u); - } + my $gs = Git::SVN->find_by_url($url); + if (command(qw/diff-index HEAD --/)) { + print STDERR "Cannot rebase with uncommited changes:\n"; + command_noisy('status'); + exit 1; } - graft_tree_joins($grafts); + $_fetch_all ? $gs->fetch_all : $gs->fetch; + command_noisy(rebase_cmd(), $gs->refname); +} - write_grafts($grafts, $comments, $gr_file); - unlink "$gr_file~$gr_sha1" if $gr_sha1; +sub cmd_show_ignore { + my $url = (::working_head_info('HEAD'))[0]; + my $gs = Git::SVN->find_by_url($url) || Git::SVN->new; + my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum); + $gs->traverse_ignore(\*STDOUT, $gs->{path}, $r); } -sub multi_init { +sub cmd_multi_init { my $url = shift; unless (defined $_trunk || defined $_branches || defined $_tags) { usage(1); } + $_prefix = '' unless defined $_prefix; + if (defined $url) { + $url =~ s#/+$##; + init_subdir(@_); + } + do_git_init_db(); if (defined $_trunk) { - my $trunk_url = complete_svn_url($url, $_trunk); - my $ch_id; - if ($GIT_SVN eq 'git-svn') { - $ch_id = 1; - $GIT_SVN = $ENV{GIT_SVN_ID} = 'trunk'; - } - init_vars(); - unless (-d $GIT_SVN_DIR) { - if ($ch_id) { - print "GIT_SVN_ID set to 'trunk' for ", - "$trunk_url ($_trunk)\n"; - } - init($trunk_url); - command_noisy('config', 'svn.trunk', $trunk_url); + 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); } } - $_prefix = '' unless defined $_prefix; - complete_url_ls_init($url, $_branches, '--branches/-b', $_prefix); - complete_url_ls_init($url, $_tags, '--tags/-t', $_prefix . 'tags/'); -} - -sub multi_fetch { - # try to do trunk first, since branches/tags - # may be descended from it. - if (-e "$GIT_DIR/svn/trunk/info/url") { - fetch_child_id('trunk', @_); - } - rec_fetch('', "$GIT_DIR/svn", @_); + 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 show_log { - my (@args) = @_; - my ($r_min, $r_max); - my $r_last = -1; # prevent dupes - rload_authors() if $_authors; - 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 { - print STDERR "-r$_revision is not supported, use ", - "standard \'git log\' arguments instead\n"; - exit 1; +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); } } - - config_pager(); - @args = (git_svn_log_cmd($r_min, $r_max), @args); - my $log = command_output_pipe(@args); - run_pager(); - my (@k, $c, $d); - - 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+)$/) { - get_author_info($c, $1, $2, $3); - } elsif (/^${_esc_color}(?:tree|parent|committer) /) { - # 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 #; - push @{$c->{changed}}, $_; - } elsif (/^${_esc_color}diff /) { - $d = 1; - push @{$c->{diff}}, $_; - } elsif ($d) { - push @{$c->{diff}}, $_; - } elsif (/^${_esc_color} (git-svn-id:.+)$/) { - ($c->{url}, $c->{r}, undef) = extract_metadata($1); - } elsif (s/^${_esc_color} //) { - 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; -} - -sub commit_diff_usage { - print STDERR "Usage: $0 commit-diff <tree-ish> <tree-ish> [<URL>]\n"; - exit 1 } -sub commit_diff { - my $ta = shift or commit_diff_usage(); - my $tb = shift or commit_diff_usage(); - if (!eval { $SVN_URL = shift || file_to_s("$GIT_SVN_DIR/info/url") }) { - print STDERR "Needed URL or usable git-svn id command-line\n"; - commit_diff_usage(); - } - my $r = shift; - unless (defined $r) { - if (defined $_revision) { - $r = $_revision - } else { - die "-r|--revision is a required argument\n"; +# 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>]\n"; + 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) { - print STDERR "Both --message/-m and --file/-F specified ", - "for the commit message.\n", - "I have no idea what you mean\n"; - exit 1; + fatal("Both --message/-m and --file/-F specified ", + "for the commit message.\n", + "I have no idea what you mean\n"); } if (defined $_file) { $_message = file_to_s($_file); } else { - $_message ||= get_commit_message($tb, - "$GIT_DIR/.svn-commit.tmp.$$")->{msg}; + $_message ||= get_commit_entry($tb)->{log}; } - $SVN ||= libsvn_connect($SVN_URL); + my $ra ||= Git::SVN::Ra->new($url); + $svn_path ||= $ra->{svn_path}; + my $r = $_revision; if ($r eq 'HEAD') { - $r = $SVN->get_latest_revnum; + $r = $ra->get_latest_revnum; } elsif ($r !~ /^\d+$/) { die "revision argument: $r not understood by git-svn\n"; } - my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : (); - my $rev_committed; - my $ed = SVN::Git::Editor->new({ r => $r, - ra => libsvn_dup_ra($SVN), - c => $tb, - svn_path => $SVN->{svn_path} - }, - $SVN->get_commit_editor($_message, - sub { - $rev_committed = $_[0]; - print "Committed $_[0]\n"; - }, @lock) - ); - eval { - my $mods = libsvn_checkout_tree($ta, $tb, $ed); - if (@$mods == 0) { - print "No changes\n$ta == $tb\n"; - $ed->abort_edit; - } else { - $ed->close_edit; - } - }; - fatal "$@\n" if $@; - $_message = $_file = undef; - return $rev_committed; + 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 == $tb\n"; + } } ########################### utility functions ######################### -sub cmt_showable { - my ($c) = @_; - return 1 if defined $c->{r}; - if ($c->{l} && $c->{l}->[-1] eq "...\n" && - $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) { - my @msg = command(qw/cat-file commit/, $c->{c}); - shift @msg while ($msg[0] ne "\n"); - shift @msg; - @{$c->{l}} = grep !/^git-svn-id: /, @msg; - - (undef, $c->{r}, undef) = extract_metadata( - (grep(/^git-svn-id: /, @msg))[-1]); - } - return defined $c->{r}; +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 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 post_fetch_checkout { + return if $_no_checkout; + my $gs = $Git::SVN::_head or return; + return if verify_ref('refs/heads/master^0'); -sub git_svn_log_cmd { - my ($r_min, $r_max) = @_; - my @cmd = (qw/log --abbrev-commit --pretty=raw - --default/, "refs/remotes/$GIT_SVN"); - push @cmd, '-r' unless $_non_recursive; - push @cmd, qw/--raw --name-status/ if $_verbose; - push @cmd, '--color' if log_use_color(); - return @cmd unless defined $r_max; - if ($r_max == $r_min) { - push @cmd, '--max-count=1'; - if (my $c = revdb_get($REVDB, $r_max)) { - push @cmd, $c; - } - } else { - my ($c_min, $c_max); - $c_max = revdb_get($REVDB, $r_max); - $c_min = revdb_get($REVDB, $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; -} + 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')); -sub fetch_child_id { - my $id = shift; - print "Fetching $id\n"; - my $ref = "$GIT_DIR/refs/remotes/$id"; - defined(my $pid = open my $fh, '-|') or croak $!; - if (!$pid) { - $GIT_SVN = $ENV{GIT_SVN_ID} = $id; - init_vars(); - fetch(@_); - exit 0; - } - while (<$fh>) { - print $_; - check_repack() if (/^r\d+ = $sha1/o); - } - close $fh or croak $?; -} + return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#; + my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index"; + return if -f $index; -sub rec_fetch { - my ($pfx, $p, @args) = @_; - my @dir; - foreach (sort <$p/*>) { - if (-r "$_/info/url") { - $pfx .= '/' if $pfx && $pfx !~ m!/$!; - my $id = $pfx . basename $_; - next if $id eq 'trunk'; - fetch_child_id($id, @args); - } elsif (-d $_) { - push @dir, $_; - } - } - foreach (@dir) { - my $x = $_; - $x =~ s!^\Q$GIT_DIR\E/svn/!!; - rec_fetch($x, $_); - } + chomp(my $bare = `git config --bool --get core.bare`); + return if $bare eq 'true'; + 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) = @_; $path =~ s#/+$##; - $url =~ s#/+$## if $url; if ($path !~ m#^[a-z\+]+://#) { - $path = '/' . $path if ($path !~ m#^/#); if (!defined $url || $url !~ m#^[a-z\+]+://#) { fatal("E: '$path' is not a complete URL ", "and a separate URL is not specified\n"); } - $path = $url . $path; + return ($url, $path); } - return $path; + return ($path, ''); } sub complete_url_ls_init { - my ($url, $path, $switch, $pfx) = @_; - unless ($path) { + my ($ra, $repo_path, $switch, $pfx) = @_; + unless ($repo_path) { print STDERR "W: $switch not specified\n"; return; } - my $full_url = complete_svn_url($url, $path); - my @ls = libsvn_ls_fullurl($full_url); - defined(my $pid = fork) or croak $!; - if (!$pid) { - foreach my $u (map { "$full_url/$_" } (grep m!/$!, @ls)) { - $u =~ s#/+$##; - if ($u !~ m!\Q$full_url\E/(.+)$!) { - print STDERR "W: Unrecognized URL: $u\n"; - die "This should never happen\n"; - } - # don't try to init already existing refs - my $id = $pfx.$1; - $GIT_SVN = $ENV{GIT_SVN_ID} = $id; - init_vars(); - unless (-d $GIT_SVN_DIR) { - print "init $u => $id\n"; - init($u); - } - } - exit 0; - } - waitpid $pid, 0; - croak $? if $?; - my ($n) = ($switch =~ /^--(\w+)/); - command_noisy('config', "svn.$n", $full_url); -} - -sub common_prefix { - my $paths = shift; - my %common; - foreach (@$paths) { - my @tmp = split m#/#, $_; - my $p = ''; - while (my $x = shift @tmp) { - $p .= "/$x"; - $common{$p} ||= 0; - $common{$p}++; - } - } - foreach (sort {length $b <=> length $a} keys %common) { - if ($common{$_} == @$paths) { - return $_; - } - } - return ''; -} - -# grafts set here are 'stronger' in that they're based on actual tree -# matches, and won't be deleted from merge-base checking in write_grafts() -sub graft_tree_joins { - my $grafts = shift; - map_tree_joins() if (@_branch_from && !%tree_map); - return unless %tree_map; - - git_svn_each(sub { - my $i = shift; - my @args = (qw/rev-list --pretty=raw/, "refs/remotes/$i"); - my ($fh, $ctx) = command_output_pipe(@args); - while (<$fh>) { - next unless /^commit ($sha1)$/o; - my $c = $1; - my ($t) = (<$fh> =~ /^tree ($sha1)$/o); - next unless $tree_map{$t}; - - my $l; - do { - $l = readline $fh; - } until ($l =~ /^committer (?:.+) (\d+) ([\-\+]?\d+)$/); - - my ($s, $tz) = ($1, $2); - if ($tz =~ s/^\+//) { - $s += tz_to_s_offset($tz); - } elsif ($tz =~ s/^\-//) { - $s -= tz_to_s_offset($tz); - } - - my ($url_a, $r_a, $uuid_a) = cmt_metadata($c); - - foreach my $p (@{$tree_map{$t}}) { - next if $p eq $c; - my $mb = eval { command('merge-base', $c, $p) }; - next unless ($@ || $?); - if (defined $r_a) { - # see if SVN says it's a relative - my ($url_b, $r_b, $uuid_b) = - cmt_metadata($p); - next if (defined $url_b && - defined $url_a && - ($url_a eq $url_b) && - ($uuid_a eq $uuid_b)); - if ($uuid_a eq $uuid_b) { - if ($r_b < $r_a) { - $grafts->{$c}->{$p} = 2; - next; - } elsif ($r_b > $r_a) { - $grafts->{$p}->{$c} = 2; - next; - } - } - } - my $ct = get_commit_time($p); - if ($ct < $s) { - $grafts->{$c}->{$p} = 2; - } elsif ($ct > $s) { - $grafts->{$p}->{$c} = 2; - } - # what should we do when $ct == $s ? - } - } - command_close_pipe($fh, $ctx); - }); -} - -sub graft_file_copy_lib { - my ($grafts, $l_map, $u) = @_; - my $tree_paths = $l_map->{$u}; - my $pfx = common_prefix([keys %$tree_paths]); - my ($repo, $path) = repo_path_split($u.$pfx); - $SVN = libsvn_connect($repo); - - my ($base, $head) = libsvn_parse_revision(); - my $inc = 1000; - my ($min, $max) = ($base, $head < $base+$inc ? $head : $base+$inc); - my $eh = $SVN::Error::handler; - $SVN::Error::handler = \&libsvn_skip_unknown_revs; - while (1) { - my $pool = SVN::Pool->new; - libsvn_get_log(libsvn_dup_ra($SVN), [$path], - $min, $max, 0, 2, 1, - sub { - libsvn_graft_file_copies($grafts, $tree_paths, - $path, @_); - }, $pool); - $pool->clear; - last if ($max >= $head); - $min = $max + 1; - $max += $inc; - $max = $head if ($max > $head); - } - $SVN::Error::handler = $eh; -} - -sub process_merge_msg_matches { - my ($grafts, $l_map, $u, $p, $c, @matches) = @_; - my (@strong, @weak); - foreach (@matches) { - # merging with ourselves is not interesting - next if $_ eq $p; - if ($l_map->{$u}->{$_}) { - push @strong, $_; - } else { - push @weak, $_; - } - } - foreach my $w (@weak) { - last if @strong; - # no exact match, use branch name as regexp. - my $re = qr/\Q$w\E/i; - foreach (keys %{$l_map->{$u}}) { - if (/$re/) { - push @strong, $l_map->{$u}->{$_}; - last; - } - } - last if @strong; - $w = basename($w); - $re = qr/\Q$w\E/i; - foreach (keys %{$l_map->{$u}}) { - if (/$re/) { - push @strong, $l_map->{$u}->{$_}; - last; - } + $repo_path =~ s#/+$##; + if ($repo_path =~ m#^[a-z\+]+://#) { + $ra = Git::SVN::Ra->new($repo_path); + $repo_path = ''; + } else { + $repo_path =~ s#^/+##; + unless ($ra) { + fatal("E: '$repo_path' is not a complete URL ", + "and a separate URL is not specified\n"); } } - my ($rev) = ($c->{m} =~ /^git-svn-id:\s(?:\S+?)\@(\d+) - \s(?:[a-f\d\-]+)$/xsm); - unless (defined $rev) { - ($rev) = ($c->{m} =~/^git-svn-id:\s(\d+) - \@(?:[a-f\d\-]+)/xsm); - return unless defined $rev; - } - foreach my $m (@strong) { - my ($r0, $s0) = find_rev_before($rev, $m, 1); - $grafts->{$c->{c}}->{$s0} = 1 if defined $s0; + 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: $gs->{url}\n"; } -} - -sub graft_merge_msg { - my ($grafts, $l_map, $u, $p, @re) = @_; - - my $x = $l_map->{$u}->{$p}; - my $rl = rev_list_raw("refs/remotes/$x"); - while (my $c = next_rev_list_entry($rl)) { - foreach my $re (@re) { - my (@br) = ($c->{m} =~ /$re/g); - next unless @br; - process_merge_msg_matches($grafts,$l_map,$u,$p,$c,@br); - } + 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"; } -} - -sub read_uuid { - return if $SVN_UUID; - my $pool = SVN::Pool->new; - $SVN_UUID = $SVN->get_uuid($pool); - $pool->clear; + command_noisy('config', "svn-remote.$gs->{repo_id}.$n", + "$remote_path:refs/remotes/$pfx*"); } sub verify_ref { @@ -1109,37 +623,9 @@ sub verify_ref { { STDERR => 0 }); }; } -sub repo_path_split { - my $full_url = shift; - $full_url =~ s#/+$##; - - foreach (@repo_path_split_cache) { - if ($full_url =~ s#$_##) { - my $u = $1; - $full_url =~ s#^/+##; - return ($u, $full_url); - } - } - my $tmp = libsvn_connect($full_url); - return ($tmp->{repos_root}, $tmp->{svn_path}); -} - -sub setup_git_svn { - defined $SVN_URL or croak "SVN repository location required\n"; - unless (-d $GIT_DIR) { - croak "GIT_DIR=$GIT_DIR does not exist!\n"; - } - mkpath([$GIT_SVN_DIR]); - mkpath(["$GIT_SVN_DIR/info"]); - open my $fh, '>>',$REVDB or croak $!; - close $fh; - s_to_file($SVN_URL,"$GIT_SVN_DIR/info/url"); - -} - sub get_tree_from_treeish { my ($treeish) = @_; - croak "Not a sha1: $treeish\n" unless $treeish =~ /^$sha1$/o; + # $treeish can be a symbolic ref, too: my $type = command_oneline(qw/cat-file -t/, $treeish); my $expected; while ($type eq 'tag') { @@ -1148,7 +634,7 @@ sub get_tree_from_treeish { if ($type eq 'commit') { $expected = (grep /^tree /, command(qw/cat-file commit/, $treeish))[0]; - ($expected) = ($expected =~ /^tree ($sha1)$/); + ($expected) = ($expected =~ /^tree ($sha1)$/o); die "Unable to get tree from $treeish\n" unless $expected; } elsif ($type eq 'tree') { $expected = $treeish; @@ -1158,146 +644,44 @@ sub get_tree_from_treeish { return $expected; } -sub get_diff { - my ($from, $treeish) = @_; - print "diff-tree $from $treeish\n"; - my @diff_tree = qw(diff-tree -z -r); - if ($_cp_similarity) { - push @diff_tree, "-C$_cp_similarity"; - } else { - push @diff_tree, '-C'; - } - push @diff_tree, '--find-copies-harder' if $_find_copies_harder; - push @diff_tree, "-l$_l" if defined $_l; - push @diff_tree, $from, $treeish; - my ($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, $ctx); - return \@mods; -} +sub get_commit_entry { + my ($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 $!; -sub libsvn_checkout_tree { - my ($from, $treeish, $ed) = @_; - my $mods = get_diff($from, $treeish); - return $mods unless (scalar @$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}) { - $ed->$f($m, $_q); - } else { - croak "Invalid change type: $f\n"; - } - } - $ed->rmdirs($_q) if $_rmdir; - return $mods; -} - -sub get_commit_message { - my ($commit, $commit_msg) = (@_); - my %log_msg = ( msg => '' ); - open my $msg, '>', $commit_msg or croak $!; - - my $type = command_oneline(qw/cat-file -t/, $commit); + 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, $commit); + $type, $treeish); my $in_msg = 0; while (<$msg_fh>) { if (!$in_msg) { $in_msg = 1 if (/^\s*$/); } elsif (/^git-svn-id: /) { - # skip this, we regenerate the correct one - # on re-fetch anyways + # skip this for now, we regenerate the + # correct one on re-fetch anyways + # TODO: set *:merge properties or like... } else { - print $msg $_ or croak $!; + print $log_fh $_ or croak $!; } } command_close_pipe($msg_fh, $ctx); } - close $msg or croak $!; + close $log_fh or croak $!; if ($_edit || ($type eq 'tree')) { my $editor = $ENV{VISUAL} || $ENV{EDITOR} || 'vi'; - system($editor, $commit_msg); - } - - # file_to_s removes all trailing newlines, so just use chomp() here: - open $msg, '<', $commit_msg or croak $!; - { local $/; chomp($log_msg{msg} = <$msg>); } - close $msg or croak $!; - - return \%log_msg; -} - -sub set_svn_commit_env { - if (defined $LC_ALL) { - $ENV{LC_ALL} = $LC_ALL; - } else { - delete $ENV{LC_ALL}; - } -} - -sub rev_list_raw { - my ($fh, $c) = command_output_pipe(qw/rev-list --pretty=raw/, @_); - return { fh => $fh, ctx => $c, t => { } }; -} - -sub next_rev_list_entry { - my $rl = shift; - my $fh = $rl->{fh}; - my $x = $rl->{t}; - while (<$fh>) { - if (/^commit ($sha1)$/o) { - if ($x->{c}) { - $rl->{t} = { c => $1 }; - return $x; - } else { - $x->{c} = $1; - } - } elsif (/^parent ($sha1)$/o) { - $x->{p}->{$1} = 1; - } elsif (s/^ //) { - $x->{m} ||= ''; - $x->{m} .= $_; - } + # TODO: strip out spaces, comments, like git-commit.sh + system($editor, $commit_editmsg); } - command_close_pipe($fh, $rl->{ctx}); - return ($x != $rl->{t}) ? $x : undef; + 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 { @@ -1318,601 +702,1409 @@ sub file_to_s { return $ret; } -sub assert_revision_unknown { - my $r = shift; - if (my $c = revdb_get($REVDB, $r)) { - croak "$r = $c already exists! Why are we refetching it?"; +# '<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 /^(\S+?|\(no author\))\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 $!; } -sub git_commit { - my ($log_msg, @parents) = @_; - assert_revision_unknown($log_msg->{revision}); - map_tree_joins() if (@_branch_from && !%tree_map); - - my (@tmp_parents, @exec_parents, %seen_parent); - if (my $lparents = $log_msg->{parents}) { - @tmp_parents = @$lparents - } - # commit parents can be conditionally bound to a particular - # svn revision via: "svn_revno=commit_sha1", filter them out here: - foreach my $p (@parents) { - next unless defined $p; - if ($p =~ /^(\d+)=($sha1_short)$/o) { - if ($1 == $log_msg->{revision}) { - push @tmp_parents, $2; - } +# 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 { - push @tmp_parents, $p if $p =~ /$sha1_short/o; - } - } - my $tree = $log_msg->{tree}; - if (!defined $tree) { - my $index = set_index($GIT_SVN_INDEX); - $tree = command_oneline('write-tree'); - croak $? if $?; - restore_index($index); - } - # just in case we clobber the existing ref, we still want that ref - # as our parent: - if (my $cur = verify_ref("refs/remotes/$GIT_SVN^0")) { - chomp $cur; - push @tmp_parents, $cur; - } - - if (exists $tree_map{$tree}) { - foreach my $p (@{$tree_map{$tree}}) { - my $skip; - foreach (@tmp_parents) { - # see if a common parent is found - my $mb = eval { command('merge-base', $_, $p) }; - next if ($@ || $?); - $skip = 1; - last; + chomp(my $tmp = `$arg --get svn.$key`); + if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) { + $$v = $tmp; } - next if $skip; - my ($url_p, $r_p, $uuid_p) = cmt_metadata($p); - next if (($SVN_UUID eq $uuid_p) && - ($log_msg->{revision} > $r_p)); - next if (defined $url_p && defined $SVN_URL && - ($SVN_UUID eq $uuid_p) && - ($url_p eq $SVN_URL)); - push @tmp_parents, $p; - } - } - foreach (@tmp_parents) { - next if $seen_parent{$_}; - $seen_parent{$_} = 1; - push @exec_parents, $_; - # MAXPARENT is defined to 16 in commit-tree.c: - last if @exec_parents > 16; + } } + delete @$opts{@config_only} if @config_only; +} - set_commit_env($log_msg); - my @exec = ('git-commit-tree', $tree); - push @exec, '-p', $_ foreach @exec_parents; - defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec)) - or croak $!; - print $msg_fh $log_msg->{msg} or croak $!; - unless ($_no_metadata) { - print $msg_fh "\ngit-svn-id: $SVN_URL\@$log_msg->{revision}", - " $SVN_UUID\n" or croak $!; +sub extract_metadata { + my $id = shift or return (undef, undef, undef); + my ($url, $rev, $uuid) = ($id =~ /^git-svn-id:\s(\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 =~/^git-svn-id:\s(\d+)\@([a-f\d\-]+)/); } - $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: $commit\n"; + return ($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, $refs) = @_; + my ($url, $rev, $uuid); + my ($fh, $ctx) = command_output_pipe('rev-list', $head); + while (<$fh>) { + chomp; + ($url, $rev, $uuid) = cmt_metadata($_); + last if (defined $url && defined $rev && defined $uuid); + unshift @$refs, $_ if $refs; } - command_noisy('update-ref',"refs/remotes/$GIT_SVN",$commit); - revdb_set($REVDB, $log_msg->{revision}, $commit); + close $fh; # break the pipe + ($url, $rev, $uuid); +} - # this output is read via pipe, do not change: - print "r$log_msg->{revision} = $commit\n"; - return $commit; +package Git::SVN; +use strict; +use warnings; +use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent + $_repack $_repack_flags $_use_svm_props $_head + $_use_svnsync_props $no_reuse_existing/; +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 + my $e; + foreach (qw/follow_parent no_metadata use_svm_props + use_svnsync_props/) { + my $key = $_; + $key =~ tr/_//d; + $e .= "sub $_ { + my (\$self) = \@_; + return \$self->{-$_} if exists \$self->{-$_}; + my \$k = \"svn-remote.\$self->{repo_id}\.$key\"; + eval { command_oneline(qw/config --get/, \$k) }; + if (\$@) { + \$self->{-$_} = \$Git::SVN::_$_; + } else { + my \$v = command_oneline(qw/config --bool/,\$k); + \$self->{-$_} = \$v eq 'false' ? 0 : 1; + } + return \$self->{-$_} }\n"; + } + $e .= "1;\n"; + eval $e or die $@; +} + +my %LOCKFILES; +END { unlink keys %LOCKFILES if %LOCKFILES } + +sub resolve_local_globs { + my ($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 = $path->full_path($p); + my $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 $r = {}; + foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) { + if (m!^(.+)\.fetch=\s*(.*)\s*:\s*refs/remotes/(.+)\s*$!) { + $r->{$1}->{fetch}->{$2} = $3; + } elsif (m!^(.+)\.url=\s*(.*)\s*$!) { + $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"; + } + } + } + $r; } -sub check_repack { - if ($_repack && (--$_repack_nr == 0)) { +sub init_vars { + if (defined $_repack) { + $_repack = 1000 if ($_repack <= 0); $_repack_nr = $_repack; - # repack doesn't use any arguments with spaces in them, does it? - command_noisy('repack', split(/\s+/, $_repack_flags)); + $_repack_flags ||= '-d'; } } -sub set_commit_env { - my ($log_msg) = @_; - my $author = $log_msg->{author}; - if (!defined $author || length $author == 0) { - $author = '(no author)'; +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} = $_; + } } - my ($name,$email) = defined $users{$author} ? @{$users{$author}} - : ($author,"$author\@$SVN_UUID"); - $ENV{GIT_AUTHOR_NAME} = $ENV{GIT_COMMITTER_NAME} = $name; - $ENV{GIT_AUTHOR_EMAIL} = $ENV{GIT_COMMITTER_EMAIL} = $email; - $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_msg->{date}; } -sub check_upgrade_needed { - if (!-r $REVDB) { - -d $GIT_SVN_DIR or mkpath([$GIT_SVN_DIR]); - open my $fh, '>>',$REVDB or croak $!; - close $fh; - } - return unless eval { - command([qw/rev-parse --verify/,"$GIT_SVN-HEAD^0"], - {STDERR => 0}); - }; - my $head = eval { command('rev-parse',"refs/remotes/$GIT_SVN") }; - if ($@ || !$head) { - print STDERR "Please run: $0 rebuild --upgrade\n"; - exit 1; +# we allow more chars than remotes2config.sh... +sub sanitize_remote_name { + my ($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; } -# fills %tree_map with a reverse mapping of trees to commits. Useful -# for finding parents to commit on. -sub map_tree_joins { - my %seen; - foreach my $br (@_branch_from) { - my $pipe = command_output_pipe(qw/rev-list - --topo-order --pretty=raw/, $br); - while (<$pipe>) { - if (/^commit ($sha1)$/o) { - my $commit = $1; - - # if we've seen a commit, - # we've seen its parents - last if $seen{$commit}; - my ($tree) = (<$pipe> =~ /^tree ($sha1)$/o); - unless (defined $tree) { - die "Failed to parse commit $commit\n"; - } - push @{$tree_map{$tree}}, $commit; - $seen{$commit} = 1; +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; + } else { + 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"; } - close $pipe; } + my ($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", $url); + command_noisy('config', '--add', + "svn-remote.$self->{repo_id}.fetch", + "$self->{path}:".$self->refname); + } + $self->{url} = $url; } -sub load_all_refs { - if (@_branch_from) { - print STDERR '--branch|-b parameters are ignored when ', - "--branch-all-refs|-B is passed\n"; +sub find_by_url { # repos_root and, path are optional + my ($class, $full_url, $repos_root, $path) = @_; + return undef unless defined $full_url; + 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; + next if defined $repos_root && $repos_root ne $u; - # don't worry about rev-list on non-commit objects/tags, - # it shouldn't blow up if a ref is a blob or tree... - @_branch_from = command(qw/rev-parse --symbolic --all/); + 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; } -# '<svn username> = real-name <email address>' mapping based on git-svnimport: -sub load_authors { - open my $authors, '<', $_authors or die "Can't open $_authors $!\n"; - while (<$authors>) { - chomp; - next unless /^(\S+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/; - my ($user, $name, $email) = ($1, $2, $3); - $users{$user} = [$name, $email]; +sub init { + my ($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); } - close $authors or croak $!; + $self; } -sub rload_authors { - open my $authors, '<', $_authors or die "Can't open $_authors $!\n"; - while (<$authors>) { - chomp; - next unless /^(\S+?)\s*=\s*(.+?)\s*<(.+)>\s*$/; - my ($user, $name, $email) = ($1, $2, $3); - $rusers{"$name <$email>"} = $user; +sub find_ref { + my ($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); + } } - close $authors or croak $!; + (undef, undef, undef); } -sub git_svn_each { - my $sub = shift; - foreach (command(qw/rev-parse --symbolic --all/)) { - next unless s#^refs/remotes/##; - chomp $_; - next unless -f "$GIT_DIR/svn/$_/info/url"; - &$sub($_); +sub new { + my ($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; + $self; +} + +sub refname { "refs/remotes/$_[0]->{ref_id}" } + +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 migrate_revdb { - git_svn_each(sub { - my $id = shift; - defined(my $pid = fork) or croak $!; - if (!$pid) { - $GIT_SVN = $ENV{GIT_SVN_ID} = $id; - init_vars(); - exit 0 if -r $REVDB; - print "Upgrading svn => git mapping...\n"; - -d $GIT_SVN_DIR or mkpath([$GIT_SVN_DIR]); - open my $fh, '>>',$REVDB or croak $!; - close $fh; - rebuild(); - print "Done upgrading. You may now delete the ", - "deprecated $GIT_SVN_DIR/revs directory\n"; - exit 0; +sub svm { + my ($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"), } - waitpid $pid, 0; - croak $? if $?; - }); -} + }; + if ($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 + }; + } -sub migration_check { - migrate_revdb() unless (-e $REVDB); - return if (-d "$GIT_DIR/svn" || !-d $GIT_DIR); - print "Upgrading repository...\n"; - unless (-d "$GIT_DIR/svn") { - mkdir "$GIT_DIR/svn" or croak $!; + 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; + } + $path =~ s#/?[^/]+$##; } - print "Data from a previous version of git-svn exists, but\n\t", - "$GIT_SVN_DIR\n\t(required for this version ", - "($VERSION) of git-svn) does not.\n"; + die "Path: '$path' should be ''\n" if $path ne ''; + return $ra if $self->read_svm_props($ra, $path, $r); + $tried{"$self->{url}/$path"} = 1; - foreach my $x (command(qw/rev-parse --symbolic --all/)) { - 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 $dn; - rename "$GIT_DIR/$x", "$GIT_DIR/svn/$x" or croak "$!: $x"; + if ($ra->{repos_root} eq $self->{url}) { + die @err, (map { " $_\n" } keys %tried), "\n"; } - migrate_revdb() if (-d $GIT_SVN_DIR && !-w $REVDB); - print "Done upgrading.\n"; -} -sub find_rev_before { - my ($r, $id, $eq_ok) = @_; - my $f = "$GIT_DIR/svn/$id/.rev_db"; - return (undef,undef) unless -r $f; - --$r unless $eq_ok; - while ($r > 0) { - if (my $c = revdb_get($f, $r)) { - return ($r, $c); + # 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}/$path"} = 1; } - --$r; + $path =~ s#/?[^/]+$##; } - return (undef, undef); + 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 init_vars { - $GIT_SVN ||= $ENV{GIT_SVN_ID} || 'git-svn'; - $GIT_SVN_DIR = "$GIT_DIR/svn/$GIT_SVN"; - $REVDB = "$GIT_SVN_DIR/.rev_db"; - $GIT_SVN_INDEX = "$GIT_SVN_DIR/index"; - $SVN_URL = undef; - $SVN_WC = "$GIT_SVN_DIR/tree"; - %tree_map = (); -} +sub svnsync { + my ($self) = @_; + return $self->{svnsync} if $self->{svnsync}; -# convert GetOpt::Long specs for use by git-config -sub read_repo_config { - return unless -d $GIT_DIR; - my $opts = shift; - foreach my $o (keys %$opts) { - my $v = $opts->{$o}; - my ($key) = ($o =~ /^([a-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; - } + 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 }; } -sub set_default_vals { - if (defined $_repack) { - $_repack = 1000 if ($_repack <= 0); - $_repack_nr = $_repack; - $_repack_flags ||= '-d'; +# 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 read_grafts { - my $gr_file = shift; - my ($grafts, $comments) = ({}, {}); - if (open my $fh, '<', $gr_file) { - my @tmp; - while (<$fh>) { - if (/^($sha1)\s+/) { - my $c = $1; - if (@tmp) { - @{$comments->{$c}} = @tmp; - @tmp = (); - } - foreach my $p (split /\s+/, $_) { - $grafts->{$c}->{$p} = 1; - } - } else { - push @tmp, $_; - } +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"; } - close $fh or croak $!; - @{$comments->{'END'}} = @tmp if @tmp; + $ra = $self->_set_svm_vars($ra); + $self->{-want_revprops} = 1; } - return ($grafts, $comments); + $ra; } -sub write_grafts { - my ($grafts, $comments, $gr_file) = @_; +sub rel_path { + my ($self) = @_; + my $repos_root = $self->ra->{repos_root}; + return $self->{path} if ($self->{url} eq $repos_root); + die "BUG: rel_path failed! repos_root: $repos_root, Ra URL: ", + $self->ra->{url}, " path: $self->{path}, URL: $self->{url}\n"; +} - open my $fh, '>', $gr_file or croak $!; - foreach my $c (sort keys %$grafts) { - if ($comments->{$c}) { - print $fh $_ foreach @{$comments->{$c}}; - } - my $p = $grafts->{$c}; - my %x; # real parents - delete $p->{$c}; # commits are not self-reproducing... - my $ch = command_output_pipe(qw/cat-file commit/, $c); - while (<$ch>) { - if (/^parent ($sha1)/) { - $x{$1} = $p->{$1} = 1; - } else { - last unless /^\S/; - } - } - close $ch; # breaking the pipe - - # if real parents are the only ones in the grafts, drop it - next if join(' ',sort keys %$p) eq join(' ',sort keys %x); - - my (@ip, @jp, $mb); - my %del = %x; - @ip = @jp = keys %$p; - foreach my $i (@ip) { - next if $del{$i} || $p->{$i} == 2; - foreach my $j (@jp) { - next if $i eq $j || $del{$j} || $p->{$j} == 2; - $mb = eval { command('merge-base', $i, $j) }; - next unless $mb; - chomp $mb; - next if $x{$mb}; - if ($mb eq $j) { - delete $p->{$i}; - $del{$i} = 1; - } elsif ($mb eq $i) { - delete $p->{$j}; - $del{$j} = 1; - } - } +sub traverse_ignore { + my ($self, $fh, $path, $r) = @_; + $path =~ s#^/+##g; + my $ra = $self->ra; + my ($dirent, undef, $props) = $ra->get_dir($path, $r); + my $p = $path; + $p =~ s#^\Q$self->{path}\E(/|$)##; + print $fh length $p ? "\n# $p\n" : "\n# /\n"; + if (my $s = $props->{'svn:ignore'}) { + $s =~ s/[\r\n]+/\n/g; + chomp $s; + if (length $p == 0) { + $s =~ s#\n#\n/$p#g; + print $fh "/$s\n"; + } else { + $s =~ s#\n#\n/$p/#g; + print $fh "/$p/$s\n"; } + } + foreach (sort keys %$dirent) { + next if $dirent->{$_}->kind != $SVN::Node::dir; + $self->traverse_ignore($fh, "$path/$_", $r); + } +} - # if real parents are the only ones in the grafts, drop it - next if join(' ',sort keys %$p) eq join(' ',sort keys %x); +sub last_rev { ($_[0]->last_rev_commit)[0] } +sub last_commit { ($_[0]->last_rev_commit)[1] } - print $fh $c, ' ', join(' ', sort keys %$p),"\n"; +# 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 ($comments->{'END'}) { - print $fh $_ foreach @{$comments->{'END'}}; + 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 read_url_paths_all { - my ($l_map, $pfx, $p) = @_; - my @dir; - foreach (<$p/*>) { - if (-r "$_/info/url") { - $pfx .= '/' if $pfx && $pfx !~ m!/$!; - my $id = $pfx . basename $_; - my $url = file_to_s("$_/info/url"); - my ($u, $p) = repo_path_split($url); - $l_map->{$u}->{$p} = $id; - } elsif (-d $_) { - push @dir, $_; - } - } - foreach (@dir) { - my $x = $_; - $x =~ s!^\Q$GIT_DIR\E/svn/!!o; - read_url_paths_all($l_map, $x, $_); - } +sub get_fetch_range { + my ($self, $min, $max) = @_; + $max ||= $self->ra->get_latest_revnum; + $min ||= $self->rev_db_max; + (++$min, $max); } -# this one only gets ids that have been imported, not new ones -sub read_url_paths { - my $l_map = {}; - git_svn_each(sub { my $x = shift; - my $url = file_to_s("$GIT_DIR/svn/$x/info/url"); - my ($u, $p) = repo_path_split($url); - $l_map->{$u}->{$p} = $x; - }); - return $l_map; +sub tmp_config { + my (@args) = @_; + my $old_def_config = "$ENV{GIT_DIR}/svn/config"; + my $config = "$ENV{GIT_DIR}/svn/.metadata"; + if (-e $old_def_config && ! -e $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 extract_metadata { - my $id = shift or return (undef, undef, undef); - my ($url, $rev, $uuid) = ($id =~ /^git-svn-id:\s(\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 =~/^git-svn-id:\s(\d+)\@([a-f\d\-]+)/); +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}; } - return ($url, $rev, $uuid); + die $err if $err; + wantarray ? @ret : $ret[0]; } -sub cmt_metadata { - return extract_metadata((grep(/^git-svn-id: /, - command(qw/cat-file commit/, shift)))[-1]); +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...\n"; + } + }); } -sub get_commit_time { - my $cmt = shift; - my $fh = command_output_pipe(qw/rev-list --pretty=raw -n1/, $cmt); - while (<$fh>) { - /^committer\s(?:.+) (\d+) ([\-\+]?\d+)$/ or next; - my ($s, $tz) = ($1, $2); - if ($tz =~ s/^\+//) { - $s += tz_to_s_offset($tz); - } elsif ($tz =~ s/^\-//) { - $s -= tz_to_s_offset($tz); +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; } - close $fh; - return $s; } - die "Can't get commit time for commit: $cmt\n"; + if (my $cur = ::verify_ref($self->refname.'^0')) { + push @tmp, $cur; + } + 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 tz_to_s_offset { - my ($tz) = @_; - $tz =~ s/(\d\d)$//; - return ($1 * 60) + ($tz * 3600); +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; } -# 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 metadata_url { + my ($self) = @_; + ($self->rewrite_root || $self->{url}) . + (length $self->{path} ? '/' . $self->{path} : ''); } -sub run_pager { - return unless -t *STDOUT; - pipe my $rfd, my $wfd or return; - defined(my $pid = fork) or croak $!; - if (!$pid) { - open STDOUT, '>&', $wfd or croak $!; - return; +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"; } - open STDIN, '<&', $rfd or croak $!; - $ENV{LESS} ||= 'FRSX'; - exec $_pager or croak "Can't run pager: $! ($_pager)\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 get_author_info { - my ($dest, $author, $t, $tz) = @_; - $author =~ s/(?:^\s*|\s*$)//g; - $dest->{a_raw} = $author; - my $_a; - if ($_authors) { - $_a = $rusers{$author} || undef; +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; } - if (!$_a) { - ($_a) = ($author =~ /<([^>]+)\@[^>]+>$/); + $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//; + if (grep /$self->{path_regex}/, keys %$paths) { + return 1; } - $dest->{t} = $t; - $dest->{tz} = $tz; - $dest->{a} = $_a; - # 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); + 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; + } } - $dest->{t_utc} = $t; + return 0; } -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; +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) { + $gs->fetch(0, $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"; + } 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"; } - 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; + 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; } - if ($r_min != $r_max) { - return 1 if ($r_min < $c->{r}); - return 1 if ($r_max > $c->{r}); + $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"; + } + } } } - return 0 if (defined $_limit && --$_limit < 0); - show_commit($c); - return 1; + 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 show_commit { - my $c = shift; - if ($_oneline) { - my $x = "\n"; - if (my $l = $c->{l}) { - while ($l->[0] =~ /^\s*$/) { shift @$l } - $x = $l->[0]; +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"; + } } - $_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); + 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}; + my $uuid = $self->svnsync->{uuid}; + $log_entry{metadata} = "$full_url\@$rev $uuid"; + $email ||= "$author\@$uuid" + } else { + $log_entry{metadata} = $self->metadata_url. "\@$rev " . + $self->ra->get_uuid; + $email ||= "$author\@" . $self->ra->get_uuid; } + $log_entry{name} = $name; + $log_entry{email} = $email; + \%log_entry; } -sub show_commit_changed_paths { - my ($c) = @_; - return unless $c->{changed}; - print "Changed paths:\n", @{$c->{changed}}; +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 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; +sub set_tree_cb { + my ($self, $log_entry, $tree, $rev, $date, $author) = @_; + $self->{inject_parents} = { $rev => $tree }; + $self->fetch(undef, undef); +} - if (my $l = $c->{l}) { - while ($l->[$#$l] eq "\n" && $#$l > 0 - && $l->[($#$l - 1)] eq "\n") { - pop @$l; +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\n"); + } + 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 ($rev_list, $ctx) = command_output_pipe("rev-list", $self->refname); + my $latest; + my $full_url = $self->full_url; + remove_username($full_url); + my $svn_uuid; + while (<$rev_list>) { + chomp; + my $c = $_; + die "Non-SHA1: $c\n" unless $c =~ /^$::sha1$/o; + my ($url, $rev, $uuid) = ::cmt_metadata($c); + 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; } - $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; + $latest ||= $rev; + $svn_uuid ||= $uuid; + + $self->rev_db_set($rev, $c); + print "r$rev = $c\n"; + } + command_close_pipe($rev_list, $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 { - print "1 line\n"; - show_commit_changed_paths($c); - print "\n"; + 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)); } - foreach my $x (qw/raw diff/) { - if ($c->{$x}) { - print "\n"; - print $_ foreach @{$c->{$x}} + 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{^([^:]*://)[^@]+@}{$1}; } -sub _simple_prompt { +package Git::SVN::Prompt; +use strict; +use warnings; +require SVN::Core; +use vars qw/$_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; @@ -1923,7 +2115,7 @@ sub _simple_prompt { } $cred->username($default_username); } else { - _username_prompt($cred, $realm, $may_save, $pool); + username($cred, $realm, $may_save, $pool); } $cred->password(_read_password("Password for '" . $cred->username . "': ", $realm)); @@ -1931,7 +2123,7 @@ sub _simple_prompt { $SVN::_Core::SVN_NO_ERROR; } -sub _ssl_server_trust_prompt { +sub ssl_server_trust { my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_; $may_save = undef if $_no_auth_cache; print STDERR "Error validating server certificate for '$realm':\n"; @@ -1980,7 +2172,7 @@ prompt: $SVN::_Core::SVN_NO_ERROR; } -sub _ssl_client_cert_prompt { +sub ssl_client_cert { my ($cred, $realm, $may_save, $pool) = @_; $may_save = undef if $_no_auth_cache; print STDERR "Client certificate filename: "; @@ -1991,7 +2183,7 @@ sub _ssl_client_cert_prompt { $SVN::_Core::SVN_NO_ERROR; } -sub _ssl_client_cert_pw_prompt { +sub ssl_client_cert_pw { my ($cred, $realm, $may_save, $pool) = @_; $may_save = undef if $_no_auth_cache; $cred->password(_read_password("Password: ", $realm)); @@ -1999,7 +2191,7 @@ sub _ssl_client_cert_pw_prompt { $SVN::_Core::SVN_NO_ERROR; } -sub _username_prompt { +sub username { my ($cred, $realm, $may_save, $pool) = @_; $may_save = undef if $_no_auth_cache; if (defined $realm && length $realm) { @@ -2035,546 +2227,7 @@ sub _read_password { $password; } -sub libsvn_connect { - my ($url) = @_; - SVN::_Core::svn_config_ensure($_config_dir, undef); - my ($baton, $callbacks) = SVN::Core::auth_open_helper([ - SVN::Client::get_simple_provider(), - SVN::Client::get_ssl_server_trust_file_provider(), - SVN::Client::get_simple_prompt_provider( - \&_simple_prompt, 2), - SVN::Client::get_ssl_client_cert_prompt_provider( - \&_ssl_client_cert_prompt, 2), - SVN::Client::get_ssl_client_cert_pw_prompt_provider( - \&_ssl_client_cert_pw_prompt, 2), - SVN::Client::get_username_provider(), - SVN::Client::get_ssl_server_trust_prompt_provider( - \&_ssl_server_trust_prompt), - SVN::Client::get_username_prompt_provider( - \&_username_prompt, 2), - ]); - my $config = SVN::Core::config_get_config($_config_dir); - my $ra = SVN::Ra->new(url => $url, auth => $baton, - config => $config, - pool => SVN::Pool->new, - auth_provider_callbacks => $callbacks); - $ra->{svn_path} = $url; - $ra->{repos_root} = $ra->get_repos_root; - $ra->{svn_path} =~ s#^\Q$ra->{repos_root}\E/*##; - push @repo_path_split_cache, qr/^(\Q$ra->{repos_root}\E)/; - return $ra; -} - -sub libsvn_can_do_switch { - unless (defined $_svn_can_do_switch) { - my $pool = SVN::Pool->new; - my $rep = eval { - $SVN->do_switch(1, '', 0, $SVN->{url}, - SVN::Delta::Editor->new, $pool); - }; - if ($@) { - $_svn_can_do_switch = 0; - } else { - $rep->abort_report($pool); - $_svn_can_do_switch = 1; - } - $pool->clear; - } - $_svn_can_do_switch; -} - -sub libsvn_dup_ra { - my ($ra) = @_; - SVN::Ra->new(map { $_ => $ra->{$_} } qw/config url - auth auth_provider_callbacks repos_root svn_path/); -} - -sub uri_encode { - my ($f) = @_; - $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg; - $f -} - -sub uri_decode { - my ($f) = @_; - $f =~ tr/+/ /; - $f =~ s/%([A-F0-9]{2})/chr hex($1)/ge; - $f -} - -sub libsvn_log_entry { - my ($rev, $author, $date, $msg, $parents, $untracked) = @_; - my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T - (\d\d)\:(\d\d)\:(\d\d).\d+Z$/x) - or die "Unable to parse date: $date\n"; - if (defined $author && length $author > 0 && - defined $_authors && ! defined $users{$author}) { - die "Author: $author not defined in $_authors file\n"; - } - $msg = '' if ($rev == 0 && !defined $msg); - - open my $un, '>>', "$GIT_SVN_DIR/unhandled.log" or croak $!; - my $h; - print $un "r$rev\n" or croak $!; - $h = $untracked->{empty}; - foreach (sort keys %$h) { - my $act = $h->{$_} ? '+empty_dir' : '-empty_dir'; - print $un " $act: ", uri_encode($_), "\n" or croak $!; - warn "W: $act: $_\n"; - } - foreach my $t (qw/dir_prop file_prop/) { - $h = $untracked->{$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}; - my $v = $h->{$path}->{$prop}; - if (defined $v) { - print $un " +$t: ", - uri_encode($ppath), ' ', - uri_encode($prop), ' ', - uri_encode($v), "\n" - or croak $!; - } else { - print $un " -$t: ", - uri_encode($ppath), ' ', - uri_encode($prop), "\n" - or croak $!; - } - } - } - } - foreach my $t (qw/absent_file absent_directory/) { - $h = $untracked->{$t} or next; - foreach my $parent (sort keys %$h) { - foreach my $path (sort @{$h->{$parent}}) { - print $un " $t: ", - uri_encode("$parent/$path"), "\n" - or croak $!; - warn "W: $t: $parent/$path ", - "Insufficient permissions?\n"; - } - } - } - - # revprops (make this optional? it's an extra network trip...) - my $pool = SVN::Pool->new; - my $rp = $SVN->rev_proplist($rev, $pool); - foreach (sort keys %$rp) { - next if /^svn:(?:author|date|log)$/; - print $un " rev_prop: ", uri_encode($_), ' ', - uri_encode($rp->{$_}), "\n"; - } - $pool->clear; - close $un or croak $!; - - { revision => $rev, date => "+0000 $Y-$m-$d $H:$M:$S", - author => $author, msg => $msg."\n", parents => $parents || [], - revprops => $rp } -} - -sub process_rm { - my ($gui, $last_commit, $f, $q) = @_; - # remove entire directories. - if (command('ls-tree',$last_commit,'--',$f) =~ /^040000 tree/) { - my ($ls, $ctx) = command_output_pipe(qw/ls-tree - -r --name-only -z/, - $last_commit,'--',$f); - local $/ = "\0"; - while (<$ls>) { - print $gui '0 ',0 x 40,"\t",$_ or croak $!; - print "\tD\t$_\n" unless $q; - } - print "\tD\t$f/\n" unless $q; - command_close_pipe($ls, $ctx); - return $SVN::Node::dir; - } else { - print $gui '0 ',0 x 40,"\t",$f,"\0" or croak $!; - print "\tD\t$f\n" unless $q; - return $SVN::Node::file; - } -} - -sub libsvn_fetch { - my ($last_commit, $paths, $rev, $author, $date, $msg) = @_; - my $pool = SVN::Pool->new; - my $ed = SVN::Git::Fetcher->new({ c => $last_commit, q => $_q }); - my $reporter = $SVN->do_update($rev, '', 1, $ed, $pool); - my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : (); - my (undef, $last_rev, undef) = cmt_metadata($last_commit); - $reporter->set_path('', $last_rev, 0, @lock, $pool); - $reporter->finish_report($pool); - $pool->clear; - unless ($ed->{git_commit_ok}) { - die "SVN connection failed somewhere...\n"; - } - libsvn_log_entry($rev, $author, $date, $msg, [$last_commit], $ed); -} - -sub svn_grab_base_rev { - my $c = eval { command_oneline([qw/rev-parse --verify/, - "refs/remotes/$GIT_SVN^0"], - { STDERR => 0 }) }; - if (defined $c && length $c) { - my ($url, $rev, $uuid) = cmt_metadata($c); - return ($rev, $c) if defined $rev; - } - if ($_no_metadata) { - my $offset = -41; # from tail - my $rl; - open my $fh, '<', $REVDB or - die "--no-metadata specified and $REVDB not readable\n"; - seek $fh, $offset, 2; - $rl = readline $fh; - defined $rl or return (undef, undef); - chomp $rl; - while ($c ne $rl && tell $fh != 0) { - $offset -= 41; - seek $fh, $offset, 2; - $rl = readline $fh; - defined $rl or return (undef, undef); - chomp $rl; - } - my $rev = tell $fh; - croak $! if ($rev < -1); - $rev = ($rev - 41) / 41; - close $fh or croak $!; - return ($rev, $c); - } - return (undef, undef); -} - -sub libsvn_parse_revision { - my $base = shift; - my $head = $SVN->get_latest_revnum(); - if (!defined $_revision || $_revision eq 'BASE:HEAD') { - return ($base + 1, $head) if (defined $base); - return (0, $head); - } - return ($1, $2) if ($_revision =~ /^(\d+):(\d+)$/); - return ($_revision, $_revision) if ($_revision =~ /^\d+$/); - if ($_revision =~ /^BASE:(\d+)$/) { - return ($base + 1, $1) if (defined $base); - return (0, $head); - } - return ($1, $head) if ($_revision =~ /^(\d+):HEAD$/); - die "revision argument: $_revision not understood by git-svn\n", - "Try using the command-line svn client instead\n"; -} - -sub libsvn_traverse_ignore { - my ($fh, $path, $r) = @_; - $path =~ s#^/+##g; - my $pool = SVN::Pool->new; - my ($dirent, undef, $props) = $SVN->get_dir($path, $r, $pool); - my $p = $path; - $p =~ s#^\Q$SVN->{svn_path}\E/##; - print $fh length $p ? "\n# $p\n" : "\n# /\n"; - if (my $s = $props->{'svn:ignore'}) { - $s =~ s/[\r\n]+/\n/g; - chomp $s; - if (length $p == 0) { - $s =~ s#\n#\n/$p#g; - print $fh "/$s\n"; - } else { - $s =~ s#\n#\n/$p/#g; - print $fh "/$p/$s\n"; - } - } - foreach (sort keys %$dirent) { - next if $dirent->{$_}->kind != $SVN::Node::dir; - libsvn_traverse_ignore($fh, "$path/$_", $r); - } - $pool->clear; -} - -sub revisions_eq { - my ($path, $r0, $r1) = @_; - return 1 if $r0 == $r1; - my $nr = 0; - # should be OK to use Pool here (r1 - r0) should be small - my $pool = SVN::Pool->new; - libsvn_get_log($SVN, [$path], $r0, $r1, - 0, 0, 1, sub {$nr++}, $pool); - $pool->clear; - return 0 if ($nr > 1); - return 1; -} - -sub libsvn_find_parent_branch { - my ($paths, $rev, $author, $date, $msg) = @_; - my $svn_path = '/'.$SVN->{svn_path}; - - # look for a parent from another branch: - my $i = $paths->{$svn_path} or return; - my $branch_from = $i->copyfrom_path or return; - my $r = $i->copyfrom_rev; - print STDERR "Found possible branch point: ", - "$branch_from => $svn_path, $r\n"; - $branch_from =~ s#^/##; - my $l_map = {}; - read_url_paths_all($l_map, '', "$GIT_DIR/svn"); - my $url = $SVN->{repos_root}; - defined $l_map->{$url} or return; - my $id = $l_map->{$url}->{$branch_from}; - if (!defined $id && $_follow_parent) { - print STDERR "Following parent: $branch_from\@$r\n"; - # auto create a new branch and follow it - $id = basename($branch_from); - $id .= '@'.$r if -r "$GIT_DIR/svn/$id"; - while (-r "$GIT_DIR/svn/$id") { - # just grow a tail if we're not unique enough :x - $id .= '-'; - } - } - return unless defined $id; - - my ($r0, $parent) = find_rev_before($r,$id,1); - if ($_follow_parent && (!defined $r0 || !defined $parent)) { - defined(my $pid = fork) or croak $!; - if (!$pid) { - $GIT_SVN = $ENV{GIT_SVN_ID} = $id; - init_vars(); - $SVN_URL = "$url/$branch_from"; - $SVN = undef; - setup_git_svn(); - # we can't assume SVN_URL exists at r+1: - $_revision = "0:$r"; - fetch_lib(); - exit 0; - } - waitpid $pid, 0; - croak $? if $?; - ($r0, $parent) = find_rev_before($r,$id,1); - } - return unless (defined $r0 && defined $parent); - if (revisions_eq($branch_from, $r0, $r)) { - unlink $GIT_SVN_INDEX; - print STDERR "Found branch parent: ($GIT_SVN) $parent\n"; - command_noisy('read-tree', $parent); - unless (libsvn_can_do_switch()) { - return _libsvn_new_tree($paths, $rev, $author, $date, - $msg, [$parent]); - } - # do_switch works with svn/trunk >= r22312, but that is not - # included with SVN 1.4.2 (the latest version at the moment), - # so we can't rely on it. - my $ra = libsvn_connect("$url/$branch_from"); - my $ed = SVN::Git::Fetcher->new({c => $parent, q => $_q }); - my $pool = SVN::Pool->new; - my $reporter = $ra->do_switch($rev, '', 1, $SVN->{url}, - $ed, $pool); - my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : (); - $reporter->set_path('', $r0, 0, @lock, $pool); - $reporter->finish_report($pool); - $pool->clear; - unless ($ed->{git_commit_ok}) { - die "SVN connection failed somewhere...\n"; - } - return libsvn_log_entry($rev, $author, $date, $msg, [$parent]); - } - print STDERR "Nope, branch point not imported or unknown\n"; - return undef; -} - -sub libsvn_get_log { - my ($ra, @args) = @_; - $args[4]-- if $args[4] && ! $_follow_parent; - if ($SVN::Core::VERSION le '1.2.0') { - splice(@args, 3, 1); - } - $ra->get_log(@args); -} - -sub libsvn_new_tree { - if (my $log_entry = libsvn_find_parent_branch(@_)) { - return $log_entry; - } - my ($paths, $rev, $author, $date, $msg) = @_; # $pool is last - _libsvn_new_tree($paths, $rev, $author, $date, $msg, []); -} - -sub _libsvn_new_tree { - my ($paths, $rev, $author, $date, $msg, $parents) = @_; - my $pool = SVN::Pool->new; - my $ed = SVN::Git::Fetcher->new({q => $_q}); - my $reporter = $SVN->do_update($rev, '', 1, $ed, $pool); - my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : (); - $reporter->set_path('', $rev, 1, @lock, $pool); - $reporter->finish_report($pool); - $pool->clear; - unless ($ed->{git_commit_ok}) { - die "SVN connection failed somewhere...\n"; - } - libsvn_log_entry($rev, $author, $date, $msg, $parents, $ed); -} - -sub find_graft_path_commit { - my ($tree_paths, $p1, $r1) = @_; - foreach my $x (keys %$tree_paths) { - next unless ($p1 =~ /^\Q$x\E/); - my $i = $tree_paths->{$x}; - my ($r0, $parent) = find_rev_before($r1,$i,1); - return $parent if (defined $r0 && $r0 == $r1); - print STDERR "r$r1 of $i not imported\n"; - next; - } - return undef; -} - -sub find_graft_path_parents { - my ($grafts, $tree_paths, $c, $p0, $r0) = @_; - foreach my $x (keys %$tree_paths) { - next unless ($p0 =~ /^\Q$x\E/); - my $i = $tree_paths->{$x}; - my ($r, $parent) = find_rev_before($r0, $i, 1); - if (defined $r && defined $parent && revisions_eq($x,$r,$r0)) { - my ($url_b, undef, $uuid_b) = cmt_metadata($c); - my ($url_a, undef, $uuid_a) = cmt_metadata($parent); - next if ($url_a && $url_b && $url_a eq $url_b && - $uuid_b eq $uuid_a); - $grafts->{$c}->{$parent} = 1; - } - } -} - -sub libsvn_graft_file_copies { - my ($grafts, $tree_paths, $path, $paths, $rev) = @_; - foreach (keys %$paths) { - my $i = $paths->{$_}; - my ($m, $p0, $r0) = ($i->action, $i->copyfrom_path, - $i->copyfrom_rev); - next unless (defined $p0 && defined $r0); - - my $p1 = $_; - $p1 =~ s#^/##; - $p0 =~ s#^/##; - my $c = find_graft_path_commit($tree_paths, $p1, $rev); - next unless $c; - find_graft_path_parents($grafts, $tree_paths, $c, $p0, $r0); - } -} - -sub set_index { - my $old = $ENV{GIT_INDEX_FILE}; - $ENV{GIT_INDEX_FILE} = shift; - return $old; -} - -sub restore_index { - my ($old) = @_; - if (defined $old) { - $ENV{GIT_INDEX_FILE} = $old; - } else { - delete $ENV{GIT_INDEX_FILE}; - } -} - -sub libsvn_commit_cb { - my ($rev, $date, $committer, $c, $msg, $r_last, $cmt_last) = @_; - if ($_optimize_commits && $rev == ($r_last + 1)) { - my $log = libsvn_log_entry($rev,$committer,$date,$msg); - $log->{tree} = get_tree_from_treeish($c); - my $cmt = git_commit($log, $cmt_last, $c); - my @diff = command('diff-tree', $cmt, $c); - if (@diff) { - print STDERR "Trees differ: $cmt $c\n", - join('',@diff),"\n"; - exit 1; - } - } else { - fetch("$rev=$c"); - } -} - -sub libsvn_ls_fullurl { - my $fullurl = shift; - my $ra = libsvn_connect($fullurl); - my @ret; - my $pool = SVN::Pool->new; - my $r = defined $_revision ? $_revision : $ra->get_latest_revnum; - my ($dirent, undef, undef) = $ra->get_dir('', $r, $pool); - foreach my $d (sort keys %$dirent) { - if ($dirent->{$d}->kind == $SVN::Node::dir) { - push @ret, "$d/"; # add '/' for compat with cli svn - } - } - $pool->clear; - return @ret; -} - - -sub libsvn_skip_unknown_revs { - my $err = shift; - 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 || $errno == 160013) { - return; - } - croak "Error from SVN, ($errno): ", $err->expanded_message,"\n"; -}; - -# Tie::File seems to be prone to offset errors if revisions get sparse, -# it's not that fast, either. Tie::File is also not in Perl 5.6. So -# one of my favorite modules is out :< Next up would be one of the DBM -# modules, but I'm not sure which is most portable... So I'll just -# go with something that's plain-text, but still capable of -# being randomly accessed. So here's my ultra-simple fixed-width -# database. All records are 40 characters + "\n", so it's easy to seek -# to a revision: (41 * rev) is the byte offset. -# A record of 40 0s denotes an empty revision. -# And yes, it's still pretty fast (faster than Tie::File). -sub revdb_set { - my ($file, $rev, $commit) = @_; - length $commit == 40 or croak "arg3 must be a full SHA1 hexsum\n"; - open my $fh, '+<', $file or croak $!; - my $offset = $rev * 41; - # assume that append is the common case: - seek $fh, 0, 2 or croak $!; - my $pos = tell $fh; - if ($pos < $offset) { - print $fh (('0' x 40),"\n") x (($offset - $pos) / 41); - } - seek $fh, $offset, 0 or croak $!; - print $fh $commit,"\n"; - close $fh or croak $!; -} - -sub revdb_get { - my ($file, $rev) = @_; - my $ret; - my $offset = $rev * 41; - open my $fh, '<', $file or croak $!; - seek $fh, $offset, 0; - if (tell $fh == $offset) { - $ret = readline $fh; - if (defined $ret) { - chomp $ret; - $ret = undef if ($ret =~ /^0{40}$/); - } - } - close $fh or croak $!; - return $ret; -} - -sub copy_remote_ref { - my $origin = $_cp_remote ? $_cp_remote : 'origin'; - my $ref = "refs/remotes/$GIT_SVN"; - if (command('ls-remote', $origin, $ref)) { - command_noisy('fetch', $origin, "$ref:$ref"); - } elsif ($_cp_remote && !$_upgrade) { - die "Unable to find remote reference: ", - "refs/remotes/$GIT_SVN on $origin\n"; - } -} +package main; { my $kill_stupid_warnings = $SVN::Node::none.$SVN::Node::file. @@ -2594,27 +2247,28 @@ use strict; use warnings; use Carp qw/croak/; use IO::File qw//; -use Git qw/command command_oneline command_noisy - command_output_pipe command_input_pipe command_close_pipe/; +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->{c} if exists $git_svn->{c}; - $self->{q} = $git_svn->{q}; + $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->{gui}, $self->{ctx}) = command_input_pipe( - qw/update-index -z --index-info/); - require Digest::MD5; + $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 => '' }; } @@ -2624,16 +2278,46 @@ sub open_directory { { 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 $t = process_rm($self->{gui}, $self->{c}, $path, $self->{q}); - $self->{empty}->{$path} = 0 if $t == $SVN::Node::dir; + + 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, $rev) = @_; - my ($mode, $blob) = (command('ls-tree', $self->{c}, '--',$path) + 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"; @@ -2732,7 +2416,7 @@ sub apply_textdelta { sub close_file { my ($self, $fb, $exp) = @_; my $hash; - my $path = $fb->{path}; + my $path = $self->git_path($fb->{path}); if (my $fh = $fb->{fh}) { seek($fh, 0, 0) or croak $!; my $md5 = Digest::MD5->new; @@ -2760,65 +2444,163 @@ sub close_file { $hash = $fb->{blob} or die "no blob information\n"; } $fb->{pool}->clear; - my $gui = $self->{gui}; - print $gui "$fb->{mode_b} $hash\t$path\0" or croak $!; - print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $self->{q}; + $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!; + print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q; undef; } sub abort_edit { my $self = shift; - eval { command_close_pipe($self->{gui}, $self->{ctx}) }; + $self->{nr} = $self->{gii}->{nr}; + delete $self->{gii}; $self->SUPER::abort_edit(@_); } sub close_edit { my $self = shift; - command_close_pipe($self->{gui}, $self->{ctx}); $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/; +use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/; use strict; use warnings; use Carp qw/croak/; use IO::File; -use Git qw/command command_oneline command_noisy - command_output_pipe command_input_pipe command_close_pipe/; +use Digest::MD5; sub new { - my $class = shift; - my $git_svn = shift; - my $self = SVN::Delta::Editor->new(@_); + my ($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, $class; - foreach (qw/svn_path c r ra /) { - die "$_ required!\n" unless (defined $git_svn->{$_}); - $self->{$_} = $git_svn->{$_}; + foreach (qw/svn_path r tree_a tree_b/) { + $self->{$_} = $opts->{$_}; } - $self->{pool} = SVN::Pool->new; + $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} = { }; - require Digest::MD5; + $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 { - (defined $_[1] && length $_[1]) ? $_[1] : '' + my ($self, $path) = @_; + $self->{path_prefix}.(defined $path ? $path : ''); } sub url_path { my ($self, $path) = @_; - $self->{ra}->{url} . '/' . $self->repo_path($path); + $self->{url} . '/' . $self->repo_path($path); } sub rmdirs { - my ($self, $q) = @_; + my ($self) = @_; my $rm = $self->{rm}; delete $rm->{''}; # we never delete the url we're tracking return unless %$rm; @@ -2836,8 +2618,8 @@ sub rmdirs { 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/, $self->{c}); + my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/, + $self->{tree_b}); local $/ = "\0"; while (<$fh>) { chomp; @@ -2856,7 +2638,7 @@ sub rmdirs { 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 $q; + print "\tD+\t$d/\n" unless $::_q; $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p); delete $bat->{$d}; } @@ -2864,9 +2646,10 @@ sub rmdirs { sub open_or_add_dir { my ($self, $full_path, $baton) = @_; - my $p = SVN::Pool->new; - my $t = $self->{ra}->check_path($full_path, $self->{r}, $p); - $p->clear; + my $t = $self->{types}->{$full_path}; + if (!defined $t) { + die "$full_path not known in r$self->{r} or we have a bug!\n"; + } if ($t == $SVN::Node::none) { return $self->add_directory($full_path, $baton, undef, -1, $self->{pool}); @@ -2883,9 +2666,9 @@ sub open_or_add_dir { sub ensure_path { my ($self, $path) = @_; my $bat = $self->{bat}; - $path = $self->repo_path($path); - return $bat->{''} unless (length $path); - my @p = split m#/+#, $path; + 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, $bat->{''}); while (@p) { @@ -2897,23 +2680,23 @@ sub ensure_path { } sub A { - my ($self, $m, $q) = @_; + my ($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 $q; + print "\tA\t$m->{file_b}\n" unless $::_q; $self->chg_file($fbat, $m); $self->close_file($fbat,undef,$self->{pool}); } sub C { - my ($self, $m, $q) = @_; + my ($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 $q; + print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q; $self->chg_file($fbat, $m); $self->close_file($fbat,undef,$self->{pool}); } @@ -2927,12 +2710,12 @@ sub delete_entry { } sub R { - my ($self, $m, $q) = @_; + my ($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 $q; + print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q; $self->chg_file($fbat, $m); $self->close_file($fbat,undef,$self->{pool}); @@ -2942,12 +2725,12 @@ sub R { } sub M { - my ($self, $m, $q) = @_; + my ($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 $q; + print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q; $self->chg_file($fbat, $m); $self->close_file($fbat,undef,$self->{pool}); } @@ -2998,10 +2781,10 @@ sub chg_file { } sub D { - my ($self, $m, $q) = @_; + my ($self, $m) = @_; my ($dir, $file) = split_path($m->{file_b}); my $pbat = $self->ensure_path($dir); - print "\tD\t$m->{file_b}\n" unless $q; + print "\tD\t$m->{file_b}\n" unless $::_q; $self->delete_entry($m->{file_b}, $pbat); } @@ -3018,22 +2801,1109 @@ sub close_edit { sub abort_edit { my ($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\n"); + } + } + $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 $_log_window_size/; +use strict; +use warnings; +my ($can_do_switch); +my $RA; + +BEGIN { + # enforce temporary pool usage for some simple functions + my $e; + foreach (qw/get_latest_revnum get_uuid get_repos_root/) { + $e .= "sub $_ { + my \$self = shift; + my \$pool = SVN::Pool->new; + my \@ret = \$self->SUPER::$_(\@_,\$pool); + \$pool->clear; + wantarray ? \@ret : \$ret[0]; }\n"; + } + + # get_dir needs $pool held in cache for dirents to work, + # check_path is cacheable and rev_proplist is close enough + # for our purposes. + foreach (qw/check_path get_dir rev_proplist/) { + $e .= "my \%${_}_cache; my \$${_}_rev = 0; sub $_ { + my \$self = shift; + my \$r = pop; + my \$k = join(\"\\0\", \@_); + if (my \$x = \$${_}_cache{\$r}->{\$k}) { + return wantarray ? \@\$x : \$x->[0]; + } + my \$pool = SVN::Pool->new; + my \@ret = \$self->SUPER::$_(\@_, \$r, \$pool); + if (\$r != \$${_}_rev) { + \%${_}_cache = ( pool => [] ); + \$${_}_rev = \$r; + } + \$${_}_cache{\$r}->{\$k} = \\\@ret; + push \@{\$${_}_cache{pool}}, \$pool; + wantarray ? \@ret : \$ret[0]; }\n"; + } + $e .= "\n1;"; + eval $e or die $@; +} + +sub new { + my ($class, $url) = @_; + $url =~ s!/+$!!; + return $RA if ($RA && $RA->{url} eq $url); + $RA->{pool}->clear if $RA; + + SVN::_Core::svn_config_ensure($config_dir, undef); + my ($baton, $callbacks) = SVN::Core::auth_open_helper([ + 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_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), + ]); + my $config = SVN::Core::config_get_config($config_dir); + 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(/|$)##; + $RA = bless $self, $class; +} + +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; + $ret; +} + +sub get_commit_editor { + my ($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 { + $ra = Git::SVN::Ra->new($full_url); + } + } + $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; + $editor->{git_commit_ok}; +} + +sub gs_fetch_loop_common { + my ($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 %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; + } + } + 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); + } + } + # 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}; + $exists->{$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 || $errno == 160013) { + warn "W: Ignoring error from SVN, path probably ", + "does not exist: ($errno): ", + $err->expanded_message,"\n"; + return; + } + die "Error from SVN, ($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 $c->{r}; + if ($c->{l} && $c->{l}->[-1] eq "...\n" && + $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) { + my @log = command(qw/cat-file commit/, $c->{c}); + shift @log while ($log[0] ne "\n"); + shift @log; + @{$c->{l}} = 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'; + foreach my $x (@args) { + last if $x eq '--'; + next unless ::verify_ref("$x^0"); + $head = $x; + last; + } + + my $url = (::working_head_info($head))[0]; + my $gs = Git::SVN->find_by_url($url) || 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(); + return @cmd unless defined $r_max; + if ($r_max == $r_min) { + push @cmd, '--max-count=1'; + if (my $c = $gs->rev_db_get($r_max)) { + push @cmd, $c; + } + } else { + my ($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; +} + +# 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; + pipe my $rfd, my $wfd or return; + defined(my $pid = fork) or ::fatal "Can't fork: $!\n"; + if (!$pid) { + open STDOUT, '>&', $wfd or + ::fatal "Can't redirect to stdout: $!\n"; + return; + } + open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!\n"; + $ENV{LESS} ||= 'FRSX'; + exec $pager or ::fatal "Can't run pager: $! ($pager)\n"; +} + +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\n"; + } + } + + config_pager(); + @args = (git_svn_log_cmd($r_min, $r_max, @args), @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: -$log_msg hashref as returned by libsvn_log_entry() + +$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() { - msg => 'whitespace-formatted 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 |