summaryrefslogtreecommitdiff
path: root/git-svn.perl
diff options
context:
space:
mode:
Diffstat (limited to 'git-svn.perl')
-rwxr-xr-xgit-svn.perl2149
1 files changed, 2149 insertions, 0 deletions
diff --git a/git-svn.perl b/git-svn.perl
new file mode 100755
index 0000000000..7349ffea5a
--- /dev/null
+++ b/git-svn.perl
@@ -0,0 +1,2149 @@
+#!/usr/bin/perl
+# Copyright (C) 2006, Eric Wong <normalperson@yhbt.net>
+# License: GPL v2 or later
+use 5.008;
+use warnings;
+use strict;
+use vars qw/ $AUTHOR $VERSION
+ $sha1 $sha1_short $_revision $_repository
+ $_q $_authors $_authors_prog %users/;
+$AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
+$VERSION = '@@GIT_VERSION@@';
+
+use Carp qw/croak/;
+use Digest::MD5;
+use IO::File qw//;
+use File::Basename qw/dirname basename/;
+use File::Path qw/mkpath/;
+use File::Spec;
+use File::Find;
+use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
+use IPC::Open3;
+use Memoize;
+
+use Git::SVN;
+use Git::SVN::Editor;
+use Git::SVN::Fetcher;
+use Git::SVN::Ra;
+use Git::SVN::Prompt;
+use Git::SVN::Log;
+use Git::SVN::Migration;
+
+use Git::SVN::Utils qw(
+ fatal
+ can_compress
+ canonicalize_path
+ canonicalize_url
+ join_paths
+ add_path_to_url
+ join_paths
+);
+
+use Git qw(
+ git_cmd_try
+ command
+ command_oneline
+ command_noisy
+ command_output_pipe
+ command_close_pipe
+ command_bidi_pipe
+ command_close_bidi_pipe
+);
+
+BEGIN {
+ Memoize::memoize 'Git::config';
+ Memoize::memoize 'Git::config_bool';
+}
+
+
+# From which subdir have we been invoked?
+my $cmd_dir_prefix = eval {
+ command_oneline([qw/rev-parse --show-prefix/], STDERR => 0)
+} || '';
+
+$Git::SVN::Ra::_log_window_size = 100;
+
+if (! exists $ENV{SVN_SSH} && exists $ENV{GIT_SSH}) {
+ $ENV{SVN_SSH} = $ENV{GIT_SSH};
+}
+
+if (exists $ENV{SVN_SSH} && $^O eq 'msys') {
+ $ENV{SVN_SSH} =~ s/\\/\\\\/g;
+ $ENV{SVN_SSH} =~ s/(.*)/"$1"/;
+}
+
+$Git::SVN::Log::TZ = $ENV{TZ};
+$ENV{TZ} = 'UTC';
+$| = 1; # unbuffer STDOUT
+
+# All SVN commands do it. Otherwise we may die on SIGPIPE when the remote
+# repository decides to close the connection which we expect to be kept alive.
+$SIG{PIPE} = 'IGNORE';
+
+# Given a dot separated version number, "subtract" it from
+# the SVN::Core::VERSION; non-negaitive return means the SVN::Core
+# is at least at the version the caller asked for.
+sub compare_svn_version {
+ my (@ours) = split(/\./, $SVN::Core::VERSION);
+ my (@theirs) = split(/\./, $_[0]);
+ my ($i, $diff);
+
+ for ($i = 0; $i < @ours && $i < @theirs; $i++) {
+ $diff = $ours[$i] - $theirs[$i];
+ return $diff if ($diff);
+ }
+ return 1 if ($i < @ours);
+ return -1 if ($i < @theirs);
+ return 0;
+}
+
+sub _req_svn {
+ require SVN::Core; # use()-ing this causes segfaults for me... *shrug*
+ require SVN::Ra;
+ require SVN::Delta;
+ if (::compare_svn_version('1.1.0') < 0) {
+ fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)";
+ }
+}
+
+$sha1 = qr/[a-f\d]{40}/;
+$sha1_short = qr/[a-f\d]{4,40}/;
+my ($_stdin, $_help, $_edit,
+ $_message, $_file, $_branch_dest,
+ $_template, $_shared,
+ $_version, $_fetch_all, $_no_rebase, $_fetch_parent,
+ $_before, $_after,
+ $_merge, $_strategy, $_preserve_merges, $_dry_run, $_parents, $_local,
+ $_prefix, $_no_checkout, $_url, $_verbose,
+ $_commit_url, $_tag, $_merge_info, $_interactive);
+
+# This is a refactoring artifact so Git::SVN can get at this git-svn switch.
+sub opt_prefix { return $_prefix || '' }
+
+$Git::SVN::Fetcher::_placeholder_filename = ".gitignore";
+$_q ||= 0;
+my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
+ 'config-dir=s' => \$Git::SVN::Ra::config_dir,
+ 'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache,
+ 'ignore-paths=s' => \$Git::SVN::Fetcher::_ignore_regex,
+ 'include-paths=s' => \$Git::SVN::Fetcher::_include_regex,
+ 'ignore-refs=s' => \$Git::SVN::Ra::_ignore_refs_regex );
+my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
+ 'authors-file|A=s' => \$_authors,
+ 'authors-prog=s' => \$_authors_prog,
+ 'repack:i' => \$Git::SVN::_repack,
+ 'noMetadata' => \$Git::SVN::_no_metadata,
+ 'useSvmProps' => \$Git::SVN::_use_svm_props,
+ 'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props,
+ 'log-window-size=i' => \$Git::SVN::Ra::_log_window_size,
+ 'no-checkout' => \$_no_checkout,
+ 'quiet|q+' => \$_q,
+ 'repack-flags|repack-args|repack-opts=s' =>
+ \$Git::SVN::_repack_flags,
+ 'use-log-author' => \$Git::SVN::_use_log_author,
+ 'add-author-from' => \$Git::SVN::_add_author_from,
+ 'localtime' => \$Git::SVN::_localtime,
+ %remote_opts );
+
+my ($_trunk, @_tags, @_branches, $_stdlayout);
+my %icv;
+my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared,
+ 'trunk|T=s' => \$_trunk, 'tags|t=s@' => \@_tags,
+ 'branches|b=s@' => \@_branches, 'prefix=s' => \$_prefix,
+ 'stdlayout|s' => \$_stdlayout,
+ 'minimize-url|m!' => \$Git::SVN::_minimize_url,
+ 'no-metadata' => sub { $icv{noMetadata} = 1 },
+ 'use-svm-props' => sub { $icv{useSvmProps} = 1 },
+ 'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 },
+ 'rewrite-root=s' => sub { $icv{rewriteRoot} = $_[1] },
+ 'rewrite-uuid=s' => sub { $icv{rewriteUUID} = $_[1] },
+ %remote_opts );
+my %cmt_opts = ( 'edit|e' => \$_edit,
+ 'rmdir' => \$Git::SVN::Editor::_rmdir,
+ 'find-copies-harder' => \$Git::SVN::Editor::_find_copies_harder,
+ 'l=i' => \$Git::SVN::Editor::_rename_limit,
+ 'copy-similarity|C=i'=> \$Git::SVN::Editor::_cp_similarity
+);
+
+my %cmd = (
+ fetch => [ \&cmd_fetch, "Download new revisions from SVN",
+ { 'revision|r=s' => \$_revision,
+ 'fetch-all|all' => \$_fetch_all,
+ 'parent|p' => \$_fetch_parent,
+ %fc_opts } ],
+ clone => [ \&cmd_clone, "Initialize and fetch revisions",
+ { 'revision|r=s' => \$_revision,
+ 'preserve-empty-dirs' =>
+ \$Git::SVN::Fetcher::_preserve_empty_dirs,
+ 'placeholder-filename=s' =>
+ \$Git::SVN::Fetcher::_placeholder_filename,
+ %fc_opts, %init_opts } ],
+ init => [ \&cmd_init, "Initialize a repo for tracking" .
+ " (requires URL argument)",
+ \%init_opts ],
+ 'multi-init' => [ \&cmd_multi_init,
+ "Deprecated alias for ".
+ "'$0 init -T<trunk> -b<branches> -t<tags>'",
+ \%init_opts ],
+ dcommit => [ \&cmd_dcommit,
+ 'Commit several diffs to merge with upstream',
+ { 'merge|m|M' => \$_merge,
+ 'strategy|s=s' => \$_strategy,
+ 'verbose|v' => \$_verbose,
+ 'dry-run|n' => \$_dry_run,
+ 'fetch-all|all' => \$_fetch_all,
+ 'commit-url=s' => \$_commit_url,
+ 'revision|r=i' => \$_revision,
+ 'no-rebase' => \$_no_rebase,
+ 'mergeinfo=s' => \$_merge_info,
+ 'interactive|i' => \$_interactive,
+ %cmt_opts, %fc_opts } ],
+ branch => [ \&cmd_branch,
+ 'Create a branch in the SVN repository',
+ { 'message|m=s' => \$_message,
+ 'destination|d=s' => \$_branch_dest,
+ 'dry-run|n' => \$_dry_run,
+ 'parents' => \$_parents,
+ 'tag|t' => \$_tag,
+ 'username=s' => \$Git::SVN::Prompt::_username,
+ 'commit-url=s' => \$_commit_url } ],
+ tag => [ sub { $_tag = 1; cmd_branch(@_) },
+ 'Create a tag in the SVN repository',
+ { 'message|m=s' => \$_message,
+ 'destination|d=s' => \$_branch_dest,
+ 'dry-run|n' => \$_dry_run,
+ 'parents' => \$_parents,
+ 'username=s' => \$Git::SVN::Prompt::_username,
+ 'commit-url=s' => \$_commit_url } ],
+ 'set-tree' => [ \&cmd_set_tree,
+ "Set an SVN repository to a git tree-ish",
+ { 'stdin' => \$_stdin, %cmt_opts, %fc_opts, } ],
+ 'create-ignore' => [ \&cmd_create_ignore,
+ 'Create a .gitignore per svn:ignore',
+ { 'revision|r=i' => \$_revision
+ } ],
+ 'mkdirs' => [ \&cmd_mkdirs ,
+ "recreate empty directories after a checkout",
+ { 'revision|r=i' => \$_revision } ],
+ 'propget' => [ \&cmd_propget,
+ 'Print the value of a property on a file or directory',
+ { 'revision|r=i' => \$_revision } ],
+ 'proplist' => [ \&cmd_proplist,
+ 'List all properties of a file or directory',
+ { 'revision|r=i' => \$_revision } ],
+ 'show-ignore' => [ \&cmd_show_ignore, "Show svn:ignore listings",
+ { 'revision|r=i' => \$_revision
+ } ],
+ 'show-externals' => [ \&cmd_show_externals, "Show svn:externals listings",
+ { 'revision|r=i' => \$_revision
+ } ],
+ 'multi-fetch' => [ \&cmd_multi_fetch,
+ "Deprecated alias for $0 fetch --all",
+ { 'revision|r=s' => \$_revision, %fc_opts } ],
+ 'migrate' => [ sub { },
+ # no-op, we automatically run this anyways,
+ 'Migrate configuration/metadata/layout from
+ previous versions of git-svn',
+ { 'minimize' => \$Git::SVN::Migration::_minimize,
+ %remote_opts } ],
+ 'log' => [ \&Git::SVN::Log::cmd_show_log, 'Show commit logs',
+ { 'limit=i' => \$Git::SVN::Log::limit,
+ 'revision|r=s' => \$_revision,
+ 'verbose|v' => \$Git::SVN::Log::verbose,
+ 'incremental' => \$Git::SVN::Log::incremental,
+ 'oneline' => \$Git::SVN::Log::oneline,
+ 'show-commit' => \$Git::SVN::Log::show_commit,
+ 'non-recursive' => \$Git::SVN::Log::non_recursive,
+ 'authors-file|A=s' => \$_authors,
+ 'color' => \$Git::SVN::Log::color,
+ 'pager=s' => \$Git::SVN::Log::pager
+ } ],
+ 'find-rev' => [ \&cmd_find_rev,
+ "Translate between SVN revision numbers and tree-ish",
+ { 'before' => \$_before,
+ 'after' => \$_after } ],
+ 'rebase' => [ \&cmd_rebase, "Fetch and rebase your working directory",
+ { 'merge|m|M' => \$_merge,
+ 'verbose|v' => \$_verbose,
+ 'strategy|s=s' => \$_strategy,
+ 'local|l' => \$_local,
+ 'fetch-all|all' => \$_fetch_all,
+ 'dry-run|n' => \$_dry_run,
+ 'preserve-merges|p' => \$_preserve_merges,
+ %fc_opts } ],
+ 'commit-diff' => [ \&cmd_commit_diff,
+ 'Commit a diff between two trees',
+ { 'message|m=s' => \$_message,
+ 'file|F=s' => \$_file,
+ 'revision|r=s' => \$_revision,
+ %cmt_opts } ],
+ 'info' => [ \&cmd_info,
+ "Show info about the latest SVN revision
+ on the current branch",
+ { 'url' => \$_url, } ],
+ 'blame' => [ \&Git::SVN::Log::cmd_blame,
+ "Show what revision and author last modified each line of a file",
+ { 'git-format' => \$Git::SVN::Log::_git_format } ],
+ 'reset' => [ \&cmd_reset,
+ "Undo fetches back to the specified SVN revision",
+ { 'revision|r=s' => \$_revision,
+ 'parent|p' => \$_fetch_parent } ],
+ 'gc' => [ \&cmd_gc,
+ "Compress unhandled.log files in .git/svn and remove " .
+ "index files in .git/svn",
+ {} ],
+);
+
+use Term::ReadLine;
+package FakeTerm;
+sub new {
+ my ($class, $reason) = @_;
+ return bless \$reason, shift;
+}
+sub readline {
+ my $self = shift;
+ die "Cannot use readline on FakeTerm: $$self";
+}
+package main;
+
+my $term = eval {
+ $ENV{"GIT_SVN_NOTTY"}
+ ? new Term::ReadLine 'git-svn', \*STDIN, \*STDOUT
+ : new Term::ReadLine 'git-svn';
+};
+if ($@) {
+ $term = new FakeTerm "$@: going non-interactive";
+}
+
+my $cmd;
+for (my $i = 0; $i < @ARGV; $i++) {
+ if (defined $cmd{$ARGV[$i]}) {
+ $cmd = $ARGV[$i];
+ splice @ARGV, $i, 1;
+ last;
+ } elsif ($ARGV[$i] eq 'help') {
+ $cmd = $ARGV[$i+1];
+ usage(0);
+ }
+};
+
+# make sure we're always running at the top-level working directory
+if ($cmd && $cmd =~ /(?:clone|init|multi-init)$/) {
+ $ENV{GIT_DIR} ||= ".git";
+} else {
+ my ($git_dir, $cdup);
+ git_cmd_try {
+ $git_dir = command_oneline([qw/rev-parse --git-dir/]);
+ } "Unable to find .git directory\n";
+ git_cmd_try {
+ $cdup = command_oneline(qw/rev-parse --show-cdup/);
+ chomp $cdup if ($cdup);
+ $cdup = "." unless ($cdup && length $cdup);
+ } "Already at toplevel, but $git_dir not found\n";
+ $ENV{GIT_DIR} = $git_dir;
+ chdir $cdup or die "Unable to chdir up to '$cdup'\n";
+ $_repository = Git->repository(Repository => $ENV{GIT_DIR});
+}
+
+my %opts = %{$cmd{$cmd}->[2]} if (defined $cmd);
+
+read_git_config(\%opts);
+if ($cmd && ($cmd eq 'log' || $cmd eq 'blame')) {
+ Getopt::Long::Configure('pass_through');
+}
+my $rv = GetOptions(%opts, 'h|H' => \$_help, 'version|V' => \$_version,
+ 'minimize-connections' => \$Git::SVN::Migration::_minimize,
+ 'id|i=s' => \$Git::SVN::default_ref_id,
+ 'svn-remote|remote|R=s' => sub {
+ $Git::SVN::no_reuse_existing = 1;
+ $Git::SVN::default_repo_id = $_[1] });
+exit 1 if (!$rv && $cmd && $cmd ne 'log');
+
+usage(0) if $_help;
+version() if $_version;
+usage(1) unless defined $cmd;
+load_authors() if $_authors;
+if (defined $_authors_prog) {
+ $_authors_prog = "'" . File::Spec->rel2abs($_authors_prog) . "'";
+}
+
+unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
+ Git::SVN::Migration::migration_check();
+}
+Git::SVN::init_vars();
+eval {
+ Git::SVN::verify_remotes_sanity();
+ $cmd{$cmd}->[0]->(@ARGV);
+ post_fetch_checkout();
+};
+fatal $@ if $@;
+exit 0;
+
+####################### primary functions ######################
+sub usage {
+ my $exit = shift || 0;
+ my $fd = $exit ? \*STDERR : \*STDOUT;
+ print $fd <<"";
+git-svn - bidirectional operations between a single Subversion tree and git
+usage: git svn <command> [options] [arguments]\n
+
+ print $fd "Available commands:\n" unless $cmd;
+
+ foreach (sort keys %cmd) {
+ next if $cmd && $cmd ne $_;
+ next if /^multi-/; # don't show deprecated commands
+ print $fd ' ',pack('A17',$_),$cmd{$_}->[1],"\n";
+ foreach (sort keys %{$cmd{$_}->[2]}) {
+ # mixed-case options are for .git/config only
+ next if /[A-Z]/ && /^[a-z]+$/i;
+ # prints out arguments as they should be passed:
+ my $x = s#[:=]s$## ? '<arg>' : s#[:=]i$## ? '<num>' : '';
+ print $fd ' ' x 21, join(', ', map { length $_ > 1 ?
+ "--$_" : "-$_" }
+ split /\|/,$_)," $x\n";
+ }
+ }
+ print $fd <<"";
+\nGIT_SVN_ID may be set in the environment or via the --id/-i switch to an
+arbitrary identifier if you're tracking multiple SVN branches/repositories in
+one git repository and want to keep them separate. See git-svn(1) for more
+information.
+
+ exit $exit;
+}
+
+sub version {
+ ::_req_svn();
+ print "git-svn version $VERSION (svn $SVN::Core::VERSION)\n";
+ exit 0;
+}
+
+sub ask {
+ my ($prompt, %arg) = @_;
+ my $valid_re = $arg{valid_re};
+ my $default = $arg{default};
+ my $resp;
+ my $i = 0;
+
+ if ( !( defined($term->IN)
+ && defined( fileno($term->IN) )
+ && defined( $term->OUT )
+ && defined( fileno($term->OUT) ) ) ){
+ return defined($default) ? $default : undef;
+ }
+
+ while ($i++ < 10) {
+ $resp = $term->readline($prompt);
+ if (!defined $resp) { # EOF
+ print "\n";
+ return defined $default ? $default : undef;
+ }
+ if ($resp eq '' and defined $default) {
+ return $default;
+ }
+ if (!defined $valid_re or $resp =~ /$valid_re/) {
+ return $resp;
+ }
+ }
+ return undef;
+}
+
+sub do_git_init_db {
+ unless (-d $ENV{GIT_DIR}) {
+ my @init_db = ('init');
+ push @init_db, "--template=$_template" if defined $_template;
+ if (defined $_shared) {
+ if ($_shared =~ /[a-z]/) {
+ push @init_db, "--shared=$_shared";
+ } else {
+ push @init_db, "--shared";
+ }
+ }
+ command_noisy(@init_db);
+ $_repository = Git->repository(Repository => ".git");
+ }
+ my $set;
+ my $pfx = "svn-remote.$Git::SVN::default_repo_id";
+ foreach my $i (keys %icv) {
+ die "'$set' and '$i' cannot both be set\n" if $set;
+ next unless defined $icv{$i};
+ command_noisy('config', "$pfx.$i", $icv{$i});
+ $set = $i;
+ }
+ my $ignore_paths_regex = \$Git::SVN::Fetcher::_ignore_regex;
+ command_noisy('config', "$pfx.ignore-paths", $$ignore_paths_regex)
+ if defined $$ignore_paths_regex;
+ my $include_paths_regex = \$Git::SVN::Fetcher::_include_regex;
+ command_noisy('config', "$pfx.include-paths", $$include_paths_regex)
+ if defined $$include_paths_regex;
+ my $ignore_refs_regex = \$Git::SVN::Ra::_ignore_refs_regex;
+ command_noisy('config', "$pfx.ignore-refs", $$ignore_refs_regex)
+ if defined $$ignore_refs_regex;
+
+ if (defined $Git::SVN::Fetcher::_preserve_empty_dirs) {
+ my $fname = \$Git::SVN::Fetcher::_placeholder_filename;
+ command_noisy('config', "$pfx.preserve-empty-dirs", 'true');
+ command_noisy('config', "$pfx.placeholder-filename", $$fname);
+ }
+}
+
+sub init_subdir {
+ my $repo_path = shift or return;
+ mkpath([$repo_path]) unless -d $repo_path;
+ chdir $repo_path or die "Couldn't chdir to $repo_path: $!\n";
+ $ENV{GIT_DIR} = '.git';
+ $_repository = Git->repository(Repository => $ENV{GIT_DIR});
+}
+
+sub cmd_clone {
+ my ($url, $path) = @_;
+ if (!defined $path &&
+ (defined $_trunk || @_branches || @_tags ||
+ defined $_stdlayout) &&
+ $url !~ m#^[a-z\+]+://#) {
+ $path = $url;
+ }
+ $path = basename($url) if !defined $path || !length $path;
+ my $authors_absolute = $_authors ? File::Spec->rel2abs($_authors) : "";
+ cmd_init($url, $path);
+ command_oneline('config', 'svn.authorsfile', $authors_absolute)
+ if $_authors;
+ Git::SVN::fetch_all($Git::SVN::default_repo_id);
+}
+
+sub cmd_init {
+ if (defined $_stdlayout) {
+ $_trunk = 'trunk' if (!defined $_trunk);
+ @_tags = 'tags' if (! @_tags);
+ @_branches = 'branches' if (! @_branches);
+ }
+ if (defined $_trunk || @_branches || @_tags) {
+ return cmd_multi_init(@_);
+ }
+ my $url = shift or die "SVN repository location required ",
+ "as a command-line argument\n";
+ $url = canonicalize_url($url);
+ init_subdir(@_);
+ do_git_init_db();
+
+ if ($Git::SVN::_minimize_url eq 'unset') {
+ $Git::SVN::_minimize_url = 0;
+ }
+
+ Git::SVN->init($url);
+}
+
+sub cmd_fetch {
+ if (grep /^\d+=./, @_) {
+ die "'<rev>=<commit>' fetch arguments are ",
+ "no longer supported.\n";
+ }
+ my ($remote) = @_;
+ if (@_ > 1) {
+ die "usage: $0 fetch [--all] [--parent] [svn-remote]\n";
+ }
+ $Git::SVN::no_reuse_existing = undef;
+ if ($_fetch_parent) {
+ my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
+ unless ($gs) {
+ die "Unable to determine upstream SVN information from ",
+ "working tree history\n";
+ }
+ # just fetch, don't checkout.
+ $_no_checkout = 'true';
+ $_fetch_all ? $gs->fetch_all : $gs->fetch;
+ } elsif ($_fetch_all) {
+ cmd_multi_fetch();
+ } else {
+ $remote ||= $Git::SVN::default_repo_id;
+ Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
+ }
+}
+
+sub cmd_set_tree {
+ my (@commits) = @_;
+ if ($_stdin || !@commits) {
+ print "Reading from stdin...\n";
+ @commits = ();
+ while (<STDIN>) {
+ if (/\b($sha1_short)\b/o) {
+ unshift @commits, $1;
+ }
+ }
+ }
+ my @revs;
+ foreach my $c (@commits) {
+ my @tmp = command('rev-parse',$c);
+ if (scalar @tmp == 1) {
+ push @revs, $tmp[0];
+ } elsif (scalar @tmp > 1) {
+ push @revs, reverse(command('rev-list',@tmp));
+ } else {
+ fatal "Failed to rev-parse $c";
+ }
+ }
+ my $gs = Git::SVN->new;
+ my ($r_last, $cmt_last) = $gs->last_rev_commit;
+ $gs->fetch;
+ if (defined $gs->{last_rev} && $r_last != $gs->{last_rev}) {
+ fatal "There are new revisions that were fetched ",
+ "and need to be merged (or acknowledged) ",
+ "before committing.\nlast rev: $r_last\n",
+ " current: $gs->{last_rev}";
+ }
+ $gs->set_tree($_) foreach @revs;
+ print "Done committing ",scalar @revs," revisions to SVN\n";
+ unlink $gs->{index};
+}
+
+sub split_merge_info_range {
+ my ($range) = @_;
+ if ($range =~ /(\d+)-(\d+)/) {
+ return (int($1), int($2));
+ } else {
+ return (int($range), int($range));
+ }
+}
+
+sub combine_ranges {
+ my ($in) = @_;
+
+ my @fnums = ();
+ my @arr = split(/,/, $in);
+ for my $element (@arr) {
+ my ($start, $end) = split_merge_info_range($element);
+ push @fnums, $start;
+ }
+
+ my @sorted = @arr [ sort {
+ $fnums[$a] <=> $fnums[$b]
+ } 0..$#arr ];
+
+ my @return = ();
+ my $last = -1;
+ my $first = -1;
+ for my $element (@sorted) {
+ my ($start, $end) = split_merge_info_range($element);
+
+ if ($last == -1) {
+ $first = $start;
+ $last = $end;
+ next;
+ }
+ if ($start <= $last+1) {
+ if ($end > $last) {
+ $last = $end;
+ }
+ next;
+ }
+ if ($first == $last) {
+ push @return, "$first";
+ } else {
+ push @return, "$first-$last";
+ }
+ $first = $start;
+ $last = $end;
+ }
+
+ if ($first != -1) {
+ if ($first == $last) {
+ push @return, "$first";
+ } else {
+ push @return, "$first-$last";
+ }
+ }
+
+ return join(',', @return);
+}
+
+sub merge_revs_into_hash {
+ my ($hash, $minfo) = @_;
+ my @lines = split(' ', $minfo);
+
+ for my $line (@lines) {
+ my ($branchpath, $revs) = split(/:/, $line);
+
+ if (exists($hash->{$branchpath})) {
+ # Merge the two revision sets
+ my $combined = "$hash->{$branchpath},$revs";
+ $hash->{$branchpath} = combine_ranges($combined);
+ } else {
+ # Just do range combining for consolidation
+ $hash->{$branchpath} = combine_ranges($revs);
+ }
+ }
+}
+
+sub merge_merge_info {
+ my ($mergeinfo_one, $mergeinfo_two, $ignore_branch) = @_;
+ my %result_hash = ();
+
+ merge_revs_into_hash(\%result_hash, $mergeinfo_one);
+ merge_revs_into_hash(\%result_hash, $mergeinfo_two);
+
+ delete $result_hash{$ignore_branch} if $ignore_branch;
+
+ my $result = '';
+ # Sort below is for consistency's sake
+ for my $branchname (sort keys(%result_hash)) {
+ my $revlist = $result_hash{$branchname};
+ $result .= "$branchname:$revlist\n"
+ }
+ return $result;
+}
+
+sub populate_merge_info {
+ my ($d, $gs, $uuid, $linear_refs, $rewritten_parent) = @_;
+
+ my %parentshash;
+ read_commit_parents(\%parentshash, $d);
+ my @parents = @{$parentshash{$d}};
+ if ($#parents > 0) {
+ # Merge commit
+ my $all_parents_ok = 1;
+ my $aggregate_mergeinfo = '';
+ my $rooturl = $gs->repos_root;
+ my ($target_branch) = $gs->full_pushurl =~ /^\Q$rooturl\E(.*)/;
+
+ if (defined($rewritten_parent)) {
+ # Replace first parent with newly-rewritten version
+ shift @parents;
+ unshift @parents, $rewritten_parent;
+ }
+
+ foreach my $parent (@parents) {
+ my ($branchurl, $svnrev, $paruuid) =
+ cmt_metadata($parent);
+
+ unless (defined($svnrev)) {
+ # Should have been caught be preflight check
+ fatal "merge commit $d has ancestor $parent, but that change "
+ ."does not have git-svn metadata!";
+ }
+ unless ($branchurl =~ /^\Q$rooturl\E(.*)/) {
+ fatal "commit $parent git-svn metadata changed mid-run!";
+ }
+ my $branchpath = $1;
+
+ my $ra = Git::SVN::Ra->new($branchurl);
+ my (undef, undef, $props) =
+ $ra->get_dir(canonicalize_path("."), $svnrev);
+ my $par_mergeinfo = $props->{'svn:mergeinfo'};
+ unless (defined $par_mergeinfo) {
+ $par_mergeinfo = '';
+ }
+ # Merge previous mergeinfo values
+ $aggregate_mergeinfo =
+ merge_merge_info($aggregate_mergeinfo,
+ $par_mergeinfo,
+ $target_branch);
+
+ next if $parent eq $parents[0]; # Skip first parent
+ # Add new changes being placed in tree by merge
+ my @cmd = (qw/rev-list --reverse/,
+ $parent, qw/--not/);
+ foreach my $par (@parents) {
+ unless ($par eq $parent) {
+ push @cmd, $par;
+ }
+ }
+ my @revsin = ();
+ my ($revlist, $ctx) = command_output_pipe(@cmd);
+ while (<$revlist>) {
+ my $irev = $_;
+ chomp $irev;
+ my (undef, $csvnrev, undef) =
+ cmt_metadata($irev);
+ unless (defined $csvnrev) {
+ # A child is missing SVN annotations...
+ # this might be OK, or might not be.
+ warn "W:child $irev is merged into revision "
+ ."$d but does not have git-svn metadata. "
+ ."This means git-svn cannot determine the "
+ ."svn revision numbers to place into the "
+ ."svn:mergeinfo property. You must ensure "
+ ."a branch is entirely committed to "
+ ."SVN before merging it in order for "
+ ."svn:mergeinfo population to function "
+ ."properly";
+ }
+ push @revsin, $csvnrev;
+ }
+ command_close_pipe($revlist, $ctx);
+
+ last unless $all_parents_ok;
+
+ # We now have a list of all SVN revnos which are
+ # merged by this particular parent. Integrate them.
+ next if $#revsin == -1;
+ my $newmergeinfo = "$branchpath:" . join(',', @revsin);
+ $aggregate_mergeinfo =
+ merge_merge_info($aggregate_mergeinfo,
+ $newmergeinfo,
+ $target_branch);
+ }
+ if ($all_parents_ok and $aggregate_mergeinfo) {
+ return $aggregate_mergeinfo;
+ }
+ }
+
+ return undef;
+}
+
+sub dcommit_rebase {
+ my ($is_last, $current, $fetched_ref, $svn_error) = @_;
+ my @diff;
+
+ if ($svn_error) {
+ print STDERR "\nERROR from SVN:\n",
+ $svn_error->expanded_message, "\n";
+ }
+ unless ($_no_rebase) {
+ # we always want to rebase against the current HEAD,
+ # not any head that was passed to us
+ @diff = command('diff-tree', $current,
+ $fetched_ref, '--');
+ my @finish;
+ if (@diff) {
+ @finish = rebase_cmd();
+ print STDERR "W: $current and ", $fetched_ref,
+ " differ, using @finish:\n",
+ join("\n", @diff), "\n";
+ } elsif ($is_last) {
+ print "No changes between ", $current, " and ",
+ $fetched_ref,
+ "\nResetting to the latest ",
+ $fetched_ref, "\n";
+ @finish = qw/reset --mixed/;
+ }
+ command_noisy(@finish, $fetched_ref) if @finish;
+ }
+ if ($svn_error) {
+ die "ERROR: Not all changes have been committed into SVN"
+ .($_no_rebase ? ".\n" : ", however the committed\n"
+ ."ones (if any) seem to be successfully integrated "
+ ."into the working tree.\n")
+ ."Please see the above messages for details.\n";
+ }
+ return @diff;
+}
+
+sub cmd_dcommit {
+ my $head = shift;
+ command_noisy(qw/update-index --refresh/);
+ git_cmd_try { command_oneline(qw/diff-index --quiet HEAD --/) }
+ 'Cannot dcommit with a dirty index. Commit your changes first, '
+ . "or stash them with `git stash'.\n";
+ $head ||= 'HEAD';
+
+ my $old_head;
+ if ($head ne 'HEAD') {
+ $old_head = eval {
+ command_oneline([qw/symbolic-ref -q HEAD/])
+ };
+ if ($old_head) {
+ $old_head =~ s{^refs/heads/}{};
+ } else {
+ $old_head = eval { command_oneline(qw/rev-parse HEAD/) };
+ }
+ command(['checkout', $head], STDERR => 0);
+ }
+
+ my @refs;
+ my ($url, $rev, $uuid, $gs) = working_head_info('HEAD', \@refs);
+ unless ($gs) {
+ die "Unable to determine upstream SVN information from ",
+ "$head history.\nPerhaps the repository is empty.";
+ }
+
+ if (defined $_commit_url) {
+ $url = $_commit_url;
+ } else {
+ $url = eval { command_oneline('config', '--get',
+ "svn-remote.$gs->{repo_id}.commiturl") };
+ if (!$url) {
+ $url = $gs->full_pushurl
+ }
+ }
+
+ my $last_rev = $_revision if defined $_revision;
+ if ($url) {
+ print "Committing to $url ...\n";
+ }
+ my ($linear_refs, $parents) = linearize_history($gs, \@refs);
+ if ($_no_rebase && scalar(@$linear_refs) > 1) {
+ warn "Attempting to commit more than one change while ",
+ "--no-rebase is enabled.\n",
+ "If these changes depend on each other, re-running ",
+ "without --no-rebase may be required."
+ }
+
+ if (defined $_interactive){
+ my $ask_default = "y";
+ foreach my $d (@$linear_refs){
+ my ($fh, $ctx) = command_output_pipe(qw(show --summary), "$d");
+ while (<$fh>){
+ print $_;
+ }
+ command_close_pipe($fh, $ctx);
+ $_ = ask("Commit this patch to SVN? ([y]es (default)|[n]o|[q]uit|[a]ll): ",
+ valid_re => qr/^(?:yes|y|no|n|quit|q|all|a)/i,
+ default => $ask_default);
+ die "Commit this patch reply required" unless defined $_;
+ if (/^[nq]/i) {
+ exit(0);
+ } elsif (/^a/i) {
+ last;
+ }
+ }
+ }
+
+ my $expect_url = $url;
+
+ my $push_merge_info = eval {
+ command_oneline(qw/config --get svn.pushmergeinfo/)
+ };
+ if (not defined($push_merge_info)
+ or $push_merge_info eq "false"
+ or $push_merge_info eq "no"
+ or $push_merge_info eq "never") {
+ $push_merge_info = 0;
+ }
+
+ unless (defined($_merge_info) || ! $push_merge_info) {
+ # Preflight check of changes to ensure no issues with mergeinfo
+ # This includes check for uncommitted-to-SVN parents
+ # (other than the first parent, which we will handle),
+ # information from different SVN repos, and paths
+ # which are not underneath this repository root.
+ my $rooturl = $gs->repos_root;
+ foreach my $d (@$linear_refs) {
+ my %parentshash;
+ read_commit_parents(\%parentshash, $d);
+ my @realparents = @{$parentshash{$d}};
+ if ($#realparents > 0) {
+ # Merge commit
+ shift @realparents; # Remove/ignore first parent
+ foreach my $parent (@realparents) {
+ my ($branchurl, $svnrev, $paruuid) = cmt_metadata($parent);
+ unless (defined $paruuid) {
+ # A parent is missing SVN annotations...
+ # abort the whole operation.
+ fatal "$parent is merged into revision $d, "
+ ."but does not have git-svn metadata. "
+ ."Either dcommit the branch or use a "
+ ."local cherry-pick, FF merge, or rebase "
+ ."instead of an explicit merge commit.";
+ }
+
+ unless ($paruuid eq $uuid) {
+ # Parent has SVN metadata from different repository
+ fatal "merge parent $parent for change $d has "
+ ."git-svn uuid $paruuid, while current change "
+ ."has uuid $uuid!";
+ }
+
+ unless ($branchurl =~ /^\Q$rooturl\E(.*)/) {
+ # This branch is very strange indeed.
+ fatal "merge parent $parent for $d is on branch "
+ ."$branchurl, which is not under the "
+ ."git-svn root $rooturl!";
+ }
+ }
+ }
+ }
+ }
+
+ my $rewritten_parent;
+ my $current_head = command_oneline(qw/rev-parse HEAD/);
+ Git::SVN::remove_username($expect_url);
+ if (defined($_merge_info)) {
+ $_merge_info =~ tr{ }{\n};
+ }
+ while (1) {
+ my $d = shift @$linear_refs or last;
+ unless (defined $last_rev) {
+ (undef, $last_rev, undef) = cmt_metadata("$d~1");
+ unless (defined $last_rev) {
+ fatal "Unable to extract revision information ",
+ "from commit $d~1";
+ }
+ }
+ if ($_dry_run) {
+ print "diff-tree $d~1 $d\n";
+ } else {
+ my $cmt_rev;
+
+ unless (defined($_merge_info) || ! $push_merge_info) {
+ $_merge_info = populate_merge_info($d, $gs,
+ $uuid,
+ $linear_refs,
+ $rewritten_parent);
+ }
+
+ my %ed_opts = ( r => $last_rev,
+ log => get_commit_entry($d)->{log},
+ ra => Git::SVN::Ra->new($url),
+ config => SVN::Core::config_get_config(
+ $Git::SVN::Ra::config_dir
+ ),
+ tree_a => "$d~1",
+ tree_b => $d,
+ editor_cb => sub {
+ print "Committed r$_[0]\n";
+ $cmt_rev = $_[0];
+ },
+ mergeinfo => $_merge_info,
+ svn_path => '');
+
+ my $err_handler = $SVN::Error::handler;
+ $SVN::Error::handler = sub {
+ my $err = shift;
+ dcommit_rebase(1, $current_head, $gs->refname,
+ $err);
+ };
+
+ if (!Git::SVN::Editor->new(\%ed_opts)->apply_diff) {
+ print "No changes\n$d~1 == $d\n";
+ } elsif ($parents->{$d} && @{$parents->{$d}}) {
+ $gs->{inject_parents_dcommit}->{$cmt_rev} =
+ $parents->{$d};
+ }
+ $_fetch_all ? $gs->fetch_all : $gs->fetch;
+ $SVN::Error::handler = $err_handler;
+ $last_rev = $cmt_rev;
+ next if $_no_rebase;
+
+ my @diff = dcommit_rebase(@$linear_refs == 0, $d,
+ $gs->refname, undef);
+
+ $rewritten_parent = command_oneline(qw/rev-parse/,
+ $gs->refname);
+
+ if (@diff) {
+ $current_head = command_oneline(qw/rev-parse
+ HEAD/);
+ @refs = ();
+ my ($url_, $rev_, $uuid_, $gs_) =
+ working_head_info('HEAD', \@refs);
+ my ($linear_refs_, $parents_) =
+ linearize_history($gs_, \@refs);
+ if (scalar(@$linear_refs) !=
+ scalar(@$linear_refs_)) {
+ fatal "# of revisions changed ",
+ "\nbefore:\n",
+ join("\n", @$linear_refs),
+ "\n\nafter:\n",
+ join("\n", @$linear_refs_), "\n",
+ 'If you are attempting to commit ',
+ "merges, try running:\n\t",
+ 'git rebase --interactive',
+ '--preserve-merges ',
+ $gs->refname,
+ "\nBefore dcommitting";
+ }
+ if ($url_ ne $expect_url) {
+ if ($url_ eq $gs->metadata_url) {
+ print
+ "Accepting rewritten URL:",
+ " $url_\n";
+ } else {
+ fatal
+ "URL mismatch after rebase:",
+ " $url_ != $expect_url";
+ }
+ }
+ if ($uuid_ ne $uuid) {
+ fatal "uuid mismatch after rebase: ",
+ "$uuid_ != $uuid";
+ }
+ # remap parents
+ my (%p, @l, $i);
+ for ($i = 0; $i < scalar @$linear_refs; $i++) {
+ my $new = $linear_refs_->[$i] or next;
+ $p{$new} =
+ $parents->{$linear_refs->[$i]};
+ push @l, $new;
+ }
+ $parents = \%p;
+ $linear_refs = \@l;
+ undef $last_rev;
+ }
+ }
+ }
+
+ if ($old_head) {
+ my $new_head = command_oneline(qw/rev-parse HEAD/);
+ my $new_is_symbolic = eval {
+ command_oneline(qw/symbolic-ref -q HEAD/);
+ };
+ if ($new_is_symbolic) {
+ print "dcommitted the branch ", $head, "\n";
+ } else {
+ print "dcommitted on a detached HEAD because you gave ",
+ "a revision argument.\n",
+ "The rewritten commit is: ", $new_head, "\n";
+ }
+ command(['checkout', $old_head], STDERR => 0);
+ }
+
+ unlink $gs->{index};
+}
+
+sub cmd_branch {
+ my ($branch_name, $head) = @_;
+
+ unless (defined $branch_name && length $branch_name) {
+ die(($_tag ? "tag" : "branch") . " name required\n");
+ }
+ $head ||= 'HEAD';
+
+ my (undef, $rev, undef, $gs) = working_head_info($head);
+ my $src = $gs->full_pushurl;
+
+ my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
+ my $allglobs = $remote->{ $_tag ? 'tags' : 'branches' };
+ my $glob;
+ if ($#{$allglobs} == 0) {
+ $glob = $allglobs->[0];
+ } else {
+ unless(defined $_branch_dest) {
+ die "Multiple ",
+ $_tag ? "tag" : "branch",
+ " paths defined for Subversion repository.\n",
+ "You must specify where you want to create the ",
+ $_tag ? "tag" : "branch",
+ " with the --destination argument.\n";
+ }
+ foreach my $g (@{$allglobs}) {
+ my $re = Git::SVN::Editor::glob2pat($g->{path}->{left});
+ if ($_branch_dest =~ /$re/) {
+ $glob = $g;
+ last;
+ }
+ }
+ unless (defined $glob) {
+ my $dest_re = qr/\b\Q$_branch_dest\E\b/;
+ foreach my $g (@{$allglobs}) {
+ $g->{path}->{left} =~ /$dest_re/ or next;
+ if (defined $glob) {
+ die "Ambiguous destination: ",
+ $_branch_dest, "\nmatches both '",
+ $glob->{path}->{left}, "' and '",
+ $g->{path}->{left}, "'\n";
+ }
+ $glob = $g;
+ }
+ unless (defined $glob) {
+ die "Unknown ",
+ $_tag ? "tag" : "branch",
+ " destination $_branch_dest\n";
+ }
+ }
+ }
+ my ($lft, $rgt) = @{ $glob->{path} }{qw/left right/};
+ my $url;
+ if (defined $_commit_url) {
+ $url = $_commit_url;
+ } else {
+ $url = eval { command_oneline('config', '--get',
+ "svn-remote.$gs->{repo_id}.commiturl") };
+ if (!$url) {
+ $url = $remote->{pushurl} || $remote->{url};
+ }
+ }
+ my $dst = join '/', $url, $lft, $branch_name, ($rgt || ());
+
+ if ($dst =~ /^https:/ && $src =~ /^http:/) {
+ $src=~s/^http:/https:/;
+ }
+
+ ::_req_svn();
+
+ my $ctx = SVN::Client->new(
+ auth => Git::SVN::Ra::_auth_providers(),
+ log_msg => sub {
+ ${ $_[0] } = defined $_message
+ ? $_message
+ : 'Create ' . ($_tag ? 'tag ' : 'branch ' )
+ . $branch_name;
+ },
+ );
+
+ eval {
+ $ctx->ls($dst, 'HEAD', 0);
+ } and die "branch ${branch_name} already exists\n";
+
+ if ($_parents) {
+ mk_parent_dirs($ctx, $dst);
+ }
+
+ print "Copying ${src} at r${rev} to ${dst}...\n";
+ $ctx->copy($src, $rev, $dst)
+ unless $_dry_run;
+
+ $gs->fetch_all;
+}
+
+sub mk_parent_dirs {
+ my ($ctx, $parent) = @_;
+ $parent =~ s{/[^/]*$}{};
+
+ if (!eval{$ctx->ls($parent, 'HEAD', 0)}) {
+ mk_parent_dirs($ctx, $parent);
+ print "Creating parent folder ${parent} ...\n";
+ $ctx->mkdir($parent) unless $_dry_run;
+ }
+}
+
+sub cmd_find_rev {
+ my $revision_or_hash = shift or die "SVN or git revision required ",
+ "as a command-line argument\n";
+ my $result;
+ if ($revision_or_hash =~ /^r\d+$/) {
+ my $head = shift;
+ $head ||= 'HEAD';
+ my @refs;
+ my (undef, undef, $uuid, $gs) = working_head_info($head, \@refs);
+ unless ($gs) {
+ die "Unable to determine upstream SVN information from ",
+ "$head history\n";
+ }
+ my $desired_revision = substr($revision_or_hash, 1);
+ if ($_before) {
+ $result = $gs->find_rev_before($desired_revision, 1);
+ } elsif ($_after) {
+ $result = $gs->find_rev_after($desired_revision, 1);
+ } else {
+ $result = $gs->rev_map_get($desired_revision, $uuid);
+ }
+ } else {
+ my (undef, $rev, undef) = cmt_metadata($revision_or_hash);
+ $result = $rev;
+ }
+ print "$result\n" if $result;
+}
+
+sub auto_create_empty_directories {
+ my ($gs) = @_;
+ my $var = eval { command_oneline('config', '--get', '--bool',
+ "svn-remote.$gs->{repo_id}.automkdirs") };
+ # By default, create empty directories by consulting the unhandled log,
+ # but allow setting it to 'false' to skip it.
+ return !($var && $var eq 'false');
+}
+
+sub cmd_rebase {
+ command_noisy(qw/update-index --refresh/);
+ my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
+ unless ($gs) {
+ die "Unable to determine upstream SVN information from ",
+ "working tree history\n";
+ }
+ if ($_dry_run) {
+ print "Remote Branch: " . $gs->refname . "\n";
+ print "SVN URL: " . $url . "\n";
+ return;
+ }
+ if (command(qw/diff-index HEAD --/)) {
+ print STDERR "Cannot rebase with uncommitted changes:\n";
+ command_noisy('status');
+ exit 1;
+ }
+ unless ($_local) {
+ # rebase will checkout for us, so no need to do it explicitly
+ $_no_checkout = 'true';
+ $_fetch_all ? $gs->fetch_all : $gs->fetch;
+ }
+ command_noisy(rebase_cmd(), $gs->refname);
+ if (auto_create_empty_directories($gs)) {
+ $gs->mkemptydirs;
+ }
+}
+
+sub cmd_show_ignore {
+ my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
+ $gs ||= Git::SVN->new;
+ my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
+ $gs->prop_walk($gs->path, $r, sub {
+ my ($gs, $path, $props) = @_;
+ print STDOUT "\n# $path\n";
+ my $s = $props->{'svn:ignore'} or return;
+ $s =~ s/[\r\n]+/\n/g;
+ $s =~ s/^\n+//;
+ chomp $s;
+ $s =~ s#^#$path#gm;
+ print STDOUT "$s\n";
+ });
+}
+
+sub cmd_show_externals {
+ my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
+ $gs ||= Git::SVN->new;
+ my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
+ $gs->prop_walk($gs->path, $r, sub {
+ my ($gs, $path, $props) = @_;
+ print STDOUT "\n# $path\n";
+ my $s = $props->{'svn:externals'} or return;
+ $s =~ s/[\r\n]+/\n/g;
+ chomp $s;
+ $s =~ s#^#$path#gm;
+ print STDOUT "$s\n";
+ });
+}
+
+sub cmd_create_ignore {
+ my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
+ $gs ||= Git::SVN->new;
+ my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
+ $gs->prop_walk($gs->path, $r, sub {
+ my ($gs, $path, $props) = @_;
+ # $path is of the form /path/to/dir/
+ $path = '.' . $path;
+ # SVN can have attributes on empty directories,
+ # which git won't track
+ mkpath([$path]) unless -d $path;
+ my $ignore = $path . '.gitignore';
+ my $s = $props->{'svn:ignore'} or return;
+ open(GITIGNORE, '>', $ignore)
+ or fatal("Failed to open `$ignore' for writing: $!");
+ $s =~ s/[\r\n]+/\n/g;
+ $s =~ s/^\n+//;
+ chomp $s;
+ # Prefix all patterns so that the ignore doesn't apply
+ # to sub-directories.
+ $s =~ s#^#/#gm;
+ print GITIGNORE "$s\n";
+ close(GITIGNORE)
+ or fatal("Failed to close `$ignore': $!");
+ command_noisy('add', '-f', $ignore);
+ });
+}
+
+sub cmd_mkdirs {
+ my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
+ $gs ||= Git::SVN->new;
+ $gs->mkemptydirs($_revision);
+}
+
+# get_svnprops(PATH)
+# ------------------
+# Helper for cmd_propget and cmd_proplist below.
+sub get_svnprops {
+ my $path = shift;
+ my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
+ $gs ||= Git::SVN->new;
+
+ # prefix THE PATH by the sub-directory from which the user
+ # invoked us.
+ $path = $cmd_dir_prefix . $path;
+ fatal("No such file or directory: $path") unless -e $path;
+ my $is_dir = -d $path ? 1 : 0;
+ $path = join_paths($gs->path, $path);
+
+ # canonicalize the path (otherwise libsvn will abort or fail to
+ # find the file)
+ $path = canonicalize_path($path);
+
+ my $r = (defined $_revision ? $_revision : $gs->ra->get_latest_revnum);
+ my $props;
+ if ($is_dir) {
+ (undef, undef, $props) = $gs->ra->get_dir($path, $r);
+ }
+ else {
+ (undef, $props) = $gs->ra->get_file($path, $r, undef);
+ }
+ return $props;
+}
+
+# cmd_propget (PROP, PATH)
+# ------------------------
+# Print the SVN property PROP for PATH.
+sub cmd_propget {
+ my ($prop, $path) = @_;
+ $path = '.' if not defined $path;
+ usage(1) if not defined $prop;
+ my $props = get_svnprops($path);
+ if (not defined $props->{$prop}) {
+ fatal("`$path' does not have a `$prop' SVN property.");
+ }
+ print $props->{$prop} . "\n";
+}
+
+# cmd_proplist (PATH)
+# -------------------
+# Print the list of SVN properties for PATH.
+sub cmd_proplist {
+ my $path = shift;
+ $path = '.' if not defined $path;
+ my $props = get_svnprops($path);
+ print "Properties on '$path':\n";
+ foreach (sort keys %{$props}) {
+ print " $_\n";
+ }
+}
+
+sub cmd_multi_init {
+ my $url = shift;
+ unless (defined $_trunk || @_branches || @_tags) {
+ usage(1);
+ }
+
+ unless (defined $_prefix) {
+ $_prefix = '';
+ warn <<EOF
+WARNING: --prefix is not given, defaulting to empty prefix.
+ This is probably not what you want! In order to stay compatible
+ with regular remote-tracking refs, provide a prefix like
+ --prefix=origin/ (remember the trailing slash), which will cause
+ the SVN-tracking refs to be placed at refs/remotes/origin/*.
+NOTE: In Git v2.0, the default prefix will change from empty to 'origin/'.
+EOF
+ }
+ if (defined $url) {
+ $url = canonicalize_url($url);
+ init_subdir(@_);
+ }
+ do_git_init_db();
+ if (defined $_trunk) {
+ $_trunk =~ s#^/+##;
+ my $trunk_ref = 'refs/remotes/' . $_prefix . 'trunk';
+ # try both old-style and new-style lookups:
+ my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
+ unless ($gs_trunk) {
+ my ($trunk_url, $trunk_path) =
+ complete_svn_url($url, $_trunk);
+ $gs_trunk = Git::SVN->init($trunk_url, $trunk_path,
+ undef, $trunk_ref);
+ }
+ }
+ return unless @_branches || @_tags;
+ my $ra = $url ? Git::SVN::Ra->new($url) : undef;
+ foreach my $path (@_branches) {
+ complete_url_ls_init($ra, $path, '--branches/-b', $_prefix);
+ }
+ foreach my $path (@_tags) {
+ complete_url_ls_init($ra, $path, '--tags/-t', $_prefix.'tags/');
+ }
+}
+
+sub cmd_multi_fetch {
+ $Git::SVN::no_reuse_existing = undef;
+ my $remotes = Git::SVN::read_all_remotes();
+ foreach my $repo_id (sort keys %$remotes) {
+ if ($remotes->{$repo_id}->{url}) {
+ Git::SVN::fetch_all($repo_id, $remotes);
+ }
+ }
+}
+
+# this command is special because it requires no metadata
+sub cmd_commit_diff {
+ my ($ta, $tb, $url) = @_;
+ my $usage = "usage: $0 commit-diff -r<revision> ".
+ "<tree-ish> <tree-ish> [<URL>]";
+ fatal($usage) if (!defined $ta || !defined $tb);
+ my $svn_path = '';
+ if (!defined $url) {
+ my $gs = eval { Git::SVN->new };
+ if (!$gs) {
+ fatal("Needed URL or usable git-svn --id in ",
+ "the command-line\n", $usage);
+ }
+ $url = $gs->url;
+ $svn_path = $gs->path;
+ }
+ unless (defined $_revision) {
+ fatal("-r|--revision is a required argument\n", $usage);
+ }
+ if (defined $_message && defined $_file) {
+ fatal("Both --message/-m and --file/-F specified ",
+ "for the commit message.\n",
+ "I have no idea what you mean");
+ }
+ if (defined $_file) {
+ $_message = file_to_s($_file);
+ } else {
+ $_message ||= get_commit_entry($tb)->{log};
+ }
+ my $ra ||= Git::SVN::Ra->new($url);
+ my $r = $_revision;
+ if ($r eq 'HEAD') {
+ $r = $ra->get_latest_revnum;
+ } elsif ($r !~ /^\d+$/) {
+ die "revision argument: $r not understood by git-svn\n";
+ }
+ my %ed_opts = ( r => $r,
+ log => $_message,
+ ra => $ra,
+ tree_a => $ta,
+ tree_b => $tb,
+ editor_cb => sub { print "Committed r$_[0]\n" },
+ svn_path => $svn_path );
+ if (!Git::SVN::Editor->new(\%ed_opts)->apply_diff) {
+ print "No changes\n$ta == $tb\n";
+ }
+}
+
+
+sub cmd_info {
+ my $path = canonicalize_path(defined($_[0]) ? $_[0] : ".");
+ my $fullpath = canonicalize_path($cmd_dir_prefix . $path);
+ if (exists $_[1]) {
+ die "Too many arguments specified\n";
+ }
+
+ my ($file_type, $diff_status) = find_file_type_and_diff_status($path);
+
+ if (!$file_type && !$diff_status) {
+ print STDERR "svn: '$path' is not under version control\n";
+ exit 1;
+ }
+
+ my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
+ unless ($gs) {
+ die "Unable to determine upstream SVN information from ",
+ "working tree history\n";
+ }
+
+ # canonicalize_path() will return "" to make libsvn 1.5.x happy,
+ $path = "." if $path eq "";
+
+ my $full_url = canonicalize_url( add_path_to_url( $url, $fullpath ) );
+
+ if ($_url) {
+ print "$full_url\n";
+ return;
+ }
+
+ my $result = "Path: $path\n";
+ $result .= "Name: " . basename($path) . "\n" if $file_type ne "dir";
+ $result .= "URL: $full_url\n";
+
+ eval {
+ my $repos_root = $gs->repos_root;
+ Git::SVN::remove_username($repos_root);
+ $result .= "Repository Root: " . canonicalize_url($repos_root) . "\n";
+ };
+ if ($@) {
+ $result .= "Repository Root: (offline)\n";
+ }
+ ::_req_svn();
+ $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A" &&
+ (::compare_svn_version('1.5.4') <= 0 || $file_type ne "dir");
+ $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n";
+
+ $result .= "Node Kind: " .
+ ($file_type eq "dir" ? "directory" : "file") . "\n";
+
+ my $schedule = $diff_status eq "A"
+ ? "add"
+ : ($diff_status eq "D" ? "delete" : "normal");
+ $result .= "Schedule: $schedule\n";
+
+ if ($diff_status eq "A") {
+ print $result, "\n";
+ return;
+ }
+
+ my ($lc_author, $lc_rev, $lc_date_utc);
+ my @args = Git::SVN::Log::git_svn_log_cmd($rev, $rev, "--", $fullpath);
+ my $log = command_output_pipe(@args);
+ my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
+ while (<$log>) {
+ if (/^${esc_color}author (.+) <[^>]+> (\d+) ([\-\+]?\d+)$/o) {
+ $lc_author = $1;
+ $lc_date_utc = Git::SVN::Log::parse_git_date($2, $3);
+ } elsif (/^${esc_color} (git-svn-id:.+)$/o) {
+ (undef, $lc_rev, undef) = ::extract_metadata($1);
+ }
+ }
+ close $log;
+
+ Git::SVN::Log::set_local_timezone();
+
+ $result .= "Last Changed Author: $lc_author\n";
+ $result .= "Last Changed Rev: $lc_rev\n";
+ $result .= "Last Changed Date: " .
+ Git::SVN::Log::format_svn_date($lc_date_utc) . "\n";
+
+ if ($file_type ne "dir") {
+ my $text_last_updated_date =
+ ($diff_status eq "D" ? $lc_date_utc : (stat $path)[9]);
+ $result .=
+ "Text Last Updated: " .
+ Git::SVN::Log::format_svn_date($text_last_updated_date) .
+ "\n";
+ my $checksum;
+ if ($diff_status eq "D") {
+ my ($fh, $ctx) =
+ command_output_pipe(qw(cat-file blob), "HEAD:$path");
+ if ($file_type eq "link") {
+ my $file_name = <$fh>;
+ $checksum = md5sum("link $file_name");
+ } else {
+ $checksum = md5sum($fh);
+ }
+ command_close_pipe($fh, $ctx);
+ } elsif ($file_type eq "link") {
+ my $file_name =
+ command(qw(cat-file blob), "HEAD:$path");
+ $checksum =
+ md5sum("link " . $file_name);
+ } else {
+ open FILE, "<", $path or die $!;
+ $checksum = md5sum(\*FILE);
+ close FILE or die $!;
+ }
+ $result .= "Checksum: " . $checksum . "\n";
+ }
+
+ print $result, "\n";
+}
+
+sub cmd_reset {
+ my $target = shift || $_revision or die "SVN revision required\n";
+ $target = $1 if $target =~ /^r(\d+)$/;
+ $target =~ /^\d+$/ or die "Numeric SVN revision expected\n";
+ my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
+ unless ($gs) {
+ die "Unable to determine upstream SVN information from ".
+ "history\n";
+ }
+ my ($r, $c) = $gs->find_rev_before($target, not $_fetch_parent);
+ die "Cannot find SVN revision $target\n" unless defined($c);
+ $gs->rev_map_set($r, $c, 'reset', $uuid);
+ print "r$r = $c ($gs->{ref_id})\n";
+}
+
+sub cmd_gc {
+ if (!can_compress()) {
+ warn "Compress::Zlib could not be found; unhandled.log " .
+ "files will not be compressed.\n";
+ }
+ find({ wanted => \&gc_directory, no_chdir => 1}, "$ENV{GIT_DIR}/svn");
+}
+
+########################### utility functions #########################
+
+sub rebase_cmd {
+ my @cmd = qw/rebase/;
+ push @cmd, '-v' if $_verbose;
+ push @cmd, qw/--merge/ if $_merge;
+ push @cmd, "--strategy=$_strategy" if $_strategy;
+ push @cmd, "--preserve-merges" if $_preserve_merges;
+ @cmd;
+}
+
+sub post_fetch_checkout {
+ return if $_no_checkout;
+ return if verify_ref('HEAD^0');
+ my $gs = $Git::SVN::_head or return;
+
+ # look for "trunk" ref if it exists
+ my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
+ my $fetch = $remote->{fetch};
+ if ($fetch) {
+ foreach my $p (keys %$fetch) {
+ basename($fetch->{$p}) eq 'trunk' or next;
+ $gs = Git::SVN->new($fetch->{$p}, $gs->{repo_id}, $p);
+ last;
+ }
+ }
+
+ command_noisy(qw(update-ref HEAD), $gs->refname);
+ return unless verify_ref('HEAD^0');
+
+ return if $ENV{GIT_DIR} !~ m#^(?:.*/)?\.git$#;
+ my $index = $ENV{GIT_INDEX_FILE} || "$ENV{GIT_DIR}/index";
+ return if -f $index;
+
+ return if command_oneline(qw/rev-parse --is-inside-work-tree/) eq 'false';
+ return if command_oneline(qw/rev-parse --is-inside-git-dir/) eq 'true';
+ command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
+ print STDERR "Checked out HEAD:\n ",
+ $gs->full_url, " r", $gs->last_rev, "\n";
+ if (auto_create_empty_directories($gs)) {
+ $gs->mkemptydirs($gs->last_rev);
+ }
+}
+
+sub complete_svn_url {
+ my ($url, $path) = @_;
+ $path = canonicalize_path($path);
+
+ # If the path is not a URL...
+ if ($path !~ m#^[a-z\+]+://#) {
+ if (!defined $url || $url !~ m#^[a-z\+]+://#) {
+ fatal("E: '$path' is not a complete URL ",
+ "and a separate URL is not specified");
+ }
+ return ($url, $path);
+ }
+ return ($path, '');
+}
+
+sub complete_url_ls_init {
+ my ($ra, $repo_path, $switch, $pfx) = @_;
+ unless ($repo_path) {
+ print STDERR "W: $switch not specified\n";
+ return;
+ }
+ $repo_path = canonicalize_path($repo_path);
+ if ($repo_path =~ m#^[a-z\+]+://#) {
+ $ra = Git::SVN::Ra->new($repo_path);
+ $repo_path = '';
+ } else {
+ $repo_path =~ s#^/+##;
+ unless ($ra) {
+ fatal("E: '$repo_path' is not a complete URL ",
+ "and a separate URL is not specified");
+ }
+ }
+ my $url = $ra->url;
+ my $gs = Git::SVN->init($url, undef, undef, undef, 1);
+ my $k = "svn-remote.$gs->{repo_id}.url";
+ my $orig_url = eval { command_oneline(qw/config --get/, $k) };
+ if ($orig_url && ($orig_url ne $gs->url)) {
+ die "$k already set: $orig_url\n",
+ "wanted to set to: $gs->url\n";
+ }
+ command_oneline('config', $k, $gs->url) unless $orig_url;
+
+ my $remote_path = join_paths( $gs->path, $repo_path );
+ $remote_path =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg;
+ $remote_path =~ s#^/##g;
+ $remote_path .= "/*" if $remote_path !~ /\*/;
+ my ($n) = ($switch =~ /^--(\w+)/);
+ if (length $pfx && $pfx !~ m#/$#) {
+ die "--prefix='$pfx' must have a trailing slash '/'\n";
+ }
+ command_noisy('config',
+ '--add',
+ "svn-remote.$gs->{repo_id}.$n",
+ "$remote_path:refs/remotes/$pfx*" .
+ ('/*' x (($remote_path =~ tr/*/*/) - 1)) );
+}
+
+sub verify_ref {
+ my ($ref) = @_;
+ eval { command_oneline([ 'rev-parse', '--verify', $ref ],
+ { STDERR => 0 }); };
+}
+
+sub get_tree_from_treeish {
+ my ($treeish) = @_;
+ # $treeish can be a symbolic ref, too:
+ my $type = command_oneline(qw/cat-file -t/, $treeish);
+ my $expected;
+ while ($type eq 'tag') {
+ ($treeish, $type) = command(qw/cat-file tag/, $treeish);
+ }
+ if ($type eq 'commit') {
+ $expected = (grep /^tree /, command(qw/cat-file commit/,
+ $treeish))[0];
+ ($expected) = ($expected =~ /^tree ($sha1)$/o);
+ die "Unable to get tree from $treeish\n" unless $expected;
+ } elsif ($type eq 'tree') {
+ $expected = $treeish;
+ } else {
+ die "$treeish is a $type, expected tree, tag or commit\n";
+ }
+ return $expected;
+}
+
+sub get_commit_entry {
+ my ($treeish) = shift;
+ my %log_entry = ( log => '', tree => get_tree_from_treeish($treeish) );
+ my $commit_editmsg = "$ENV{GIT_DIR}/COMMIT_EDITMSG";
+ my $commit_msg = "$ENV{GIT_DIR}/COMMIT_MSG";
+ open my $log_fh, '>', $commit_editmsg or croak $!;
+
+ my $type = command_oneline(qw/cat-file -t/, $treeish);
+ if ($type eq 'commit' || $type eq 'tag') {
+ my ($msg_fh, $ctx) = command_output_pipe('cat-file',
+ $type, $treeish);
+ my $in_msg = 0;
+ my $author;
+ my $saw_from = 0;
+ my $msgbuf = "";
+ while (<$msg_fh>) {
+ if (!$in_msg) {
+ $in_msg = 1 if (/^$/);
+ $author = $1 if (/^author (.*>)/);
+ } elsif (/^git-svn-id: /) {
+ # skip this for now, we regenerate the
+ # correct one on re-fetch anyways
+ # TODO: set *:merge properties or like...
+ } else {
+ if (/^From:/ || /^Signed-off-by:/) {
+ $saw_from = 1;
+ }
+ $msgbuf .= $_;
+ }
+ }
+ $msgbuf =~ s/\s+$//s;
+ if ($Git::SVN::_add_author_from && defined($author)
+ && !$saw_from) {
+ $msgbuf .= "\n\nFrom: $author";
+ }
+ print $log_fh $msgbuf or croak $!;
+ command_close_pipe($msg_fh, $ctx);
+ }
+ close $log_fh or croak $!;
+
+ if ($_edit || ($type eq 'tree')) {
+ chomp(my $editor = command_oneline(qw(var GIT_EDITOR)));
+ system('sh', '-c', $editor.' "$@"', $editor, $commit_editmsg);
+ }
+ rename $commit_editmsg, $commit_msg or croak $!;
+ {
+ require Encode;
+ # SVN requires messages to be UTF-8 when entering the repo
+ local $/;
+ open $log_fh, '<', $commit_msg or croak $!;
+ binmode $log_fh;
+ chomp($log_entry{log} = <$log_fh>);
+
+ my $enc = Git::config('i18n.commitencoding') || 'UTF-8';
+ my $msg = $log_entry{log};
+
+ eval { $msg = Encode::decode($enc, $msg, 1) };
+ if ($@) {
+ die "Could not decode as $enc:\n", $msg,
+ "\nPerhaps you need to set i18n.commitencoding\n";
+ }
+
+ eval { $msg = Encode::encode('UTF-8', $msg, 1) };
+ die "Could not encode as UTF-8:\n$msg\n" if $@;
+
+ $log_entry{log} = $msg;
+
+ close $log_fh or croak $!;
+ }
+ unlink $commit_msg;
+ \%log_entry;
+}
+
+sub s_to_file {
+ my ($str, $file, $mode) = @_;
+ open my $fd,'>',$file or croak $!;
+ print $fd $str,"\n" or croak $!;
+ close $fd or croak $!;
+ chmod ($mode &~ umask, $file) if (defined $mode);
+}
+
+sub file_to_s {
+ my $file = shift;
+ open my $fd,'<',$file or croak "$!: file: $file\n";
+ local $/;
+ my $ret = <$fd>;
+ close $fd or croak $!;
+ $ret =~ s/\s*$//s;
+ return $ret;
+}
+
+# '<svn username> = real-name <email address>' mapping based on git-svnimport:
+sub load_authors {
+ open my $authors, '<', $_authors or die "Can't open $_authors $!\n";
+ my $log = $cmd eq 'log';
+ while (<$authors>) {
+ chomp;
+ next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
+ my ($user, $name, $email) = ($1, $2, $3);
+ if ($log) {
+ $Git::SVN::Log::rusers{"$name <$email>"} = $user;
+ } else {
+ $users{$user} = [$name, $email];
+ }
+ }
+ close $authors or croak $!;
+}
+
+# convert GetOpt::Long specs for use by git-config
+sub read_git_config {
+ my $opts = shift;
+ my @config_only;
+ foreach my $o (keys %$opts) {
+ # if we have mixedCase and a long option-only, then
+ # it's a config-only variable that we don't need for
+ # the command-line.
+ push @config_only, $o if ($o =~ /[A-Z]/ && $o =~ /^[a-z]+$/i);
+ my $v = $opts->{$o};
+ my ($key) = ($o =~ /^([a-zA-Z\-]+)/);
+ $key =~ s/-//g;
+ my $arg = 'git config';
+ $arg .= ' --int' if ($o =~ /[:=]i$/);
+ $arg .= ' --bool' if ($o !~ /[:=][sfi]$/);
+ if (ref $v eq 'ARRAY') {
+ chomp(my @tmp = `$arg --get-all svn.$key`);
+ @$v = @tmp if @tmp;
+ } else {
+ chomp(my $tmp = `$arg --get svn.$key`);
+ if ($tmp && !($arg =~ / --bool/ && $tmp eq 'false')) {
+ $$v = $tmp;
+ }
+ }
+ }
+ delete @$opts{@config_only} if @config_only;
+}
+
+sub extract_metadata {
+ my $id = shift or return (undef, undef, undef);
+ my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)
+ \s([a-f\d\-]+)$/ix);
+ if (!defined $rev || !$uuid || !$url) {
+ # some of the original repositories I made had
+ # identifiers like this:
+ ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/i);
+ }
+ return ($url, $rev, $uuid);
+}
+
+sub cmt_metadata {
+ return extract_metadata((grep(/^git-svn-id: /,
+ command(qw/cat-file commit/, shift)))[-1]);
+}
+
+sub cmt_sha2rev_batch {
+ my %s2r;
+ my ($pid, $in, $out, $ctx) = command_bidi_pipe(qw/cat-file --batch/);
+ my $list = shift;
+
+ foreach my $sha (@{$list}) {
+ my $first = 1;
+ my $size = 0;
+ print $out $sha, "\n";
+
+ while (my $line = <$in>) {
+ if ($first && $line =~ /^[[:xdigit:]]{40}\smissing$/) {
+ last;
+ } elsif ($first &&
+ $line =~ /^[[:xdigit:]]{40}\scommit\s(\d+)$/) {
+ $first = 0;
+ $size = $1;
+ next;
+ } elsif ($line =~ /^(git-svn-id: )/) {
+ my (undef, $rev, undef) =
+ extract_metadata($line);
+ $s2r{$sha} = $rev;
+ }
+
+ $size -= length($line);
+ last if ($size == 0);
+ }
+ }
+
+ command_close_bidi_pipe($pid, $in, $out, $ctx);
+
+ return \%s2r;
+}
+
+sub working_head_info {
+ my ($head, $refs) = @_;
+ my @args = qw/rev-list --first-parent --pretty=medium/;
+ my ($fh, $ctx) = command_output_pipe(@args, $head, "--");
+ my $hash;
+ my %max;
+ while (<$fh>) {
+ if ( m{^commit ($::sha1)$} ) {
+ unshift @$refs, $hash if $hash and $refs;
+ $hash = $1;
+ next;
+ }
+ next unless s{^\s*(git-svn-id:)}{$1};
+ my ($url, $rev, $uuid) = extract_metadata($_);
+ if (defined $url && defined $rev) {
+ next if $max{$url} and $max{$url} < $rev;
+ if (my $gs = Git::SVN->find_by_url($url)) {
+ my $c = $gs->rev_map_get($rev, $uuid);
+ if ($c && $c eq $hash) {
+ close $fh; # break the pipe
+ return ($url, $rev, $uuid, $gs);
+ } else {
+ $max{$url} ||= $gs->rev_map_max;
+ }
+ }
+ }
+ }
+ command_close_pipe($fh, $ctx);
+ (undef, undef, undef, undef);
+}
+
+sub read_commit_parents {
+ my ($parents, $c) = @_;
+ chomp(my $p = command_oneline(qw/rev-list --parents -1/, $c));
+ $p =~ s/^($c)\s*// or die "rev-list --parents -1 $c failed!\n";
+ @{$parents->{$c}} = split(/ /, $p);
+}
+
+sub linearize_history {
+ my ($gs, $refs) = @_;
+ my %parents;
+ foreach my $c (@$refs) {
+ read_commit_parents(\%parents, $c);
+ }
+
+ my @linear_refs;
+ my %skip = ();
+ my $last_svn_commit = $gs->last_commit;
+ foreach my $c (reverse @$refs) {
+ next if $c eq $last_svn_commit;
+ last if $skip{$c};
+
+ unshift @linear_refs, $c;
+ $skip{$c} = 1;
+
+ # we only want the first parent to diff against for linear
+ # history, we save the rest to inject when we finalize the
+ # svn commit
+ my $fp_a = verify_ref("$c~1");
+ my $fp_b = shift @{$parents{$c}} if $parents{$c};
+ if (!$fp_a || !$fp_b) {
+ die "Commit $c\n",
+ "has no parent commit, and therefore ",
+ "nothing to diff against.\n",
+ "You should be working from a repository ",
+ "originally created by git-svn\n";
+ }
+ if ($fp_a ne $fp_b) {
+ die "$c~1 = $fp_a, however parsing commit $c ",
+ "revealed that:\n$c~1 = $fp_b\nBUG!\n";
+ }
+
+ foreach my $p (@{$parents{$c}}) {
+ $skip{$p} = 1;
+ }
+ }
+ (\@linear_refs, \%parents);
+}
+
+sub find_file_type_and_diff_status {
+ my ($path) = @_;
+ return ('dir', '') if $path eq '';
+
+ my $diff_output =
+ command_oneline(qw(diff --cached --name-status --), $path) || "";
+ my $diff_status = (split(' ', $diff_output))[0] || "";
+
+ my $ls_tree = command_oneline(qw(ls-tree HEAD), $path) || "";
+
+ return (undef, undef) if !$diff_status && !$ls_tree;
+
+ if ($diff_status eq "A") {
+ return ("link", $diff_status) if -l $path;
+ return ("dir", $diff_status) if -d $path;
+ return ("file", $diff_status);
+ }
+
+ my $mode = (split(' ', $ls_tree))[0] || "";
+
+ return ("link", $diff_status) if $mode eq "120000";
+ return ("dir", $diff_status) if $mode eq "040000";
+ return ("file", $diff_status);
+}
+
+sub md5sum {
+ my $arg = shift;
+ my $ref = ref $arg;
+ my $md5 = Digest::MD5->new();
+ if ($ref eq 'GLOB' || $ref eq 'IO::File' || $ref eq 'File::Temp') {
+ $md5->addfile($arg) or croak $!;
+ } elsif ($ref eq 'SCALAR') {
+ $md5->add($$arg) or croak $!;
+ } elsif (!$ref) {
+ $md5->add($arg) or croak $!;
+ } else {
+ fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'";
+ }
+ return $md5->hexdigest();
+}
+
+sub gc_directory {
+ if (can_compress() && -f $_ && basename($_) eq "unhandled.log") {
+ my $out_filename = $_ . ".gz";
+ open my $in_fh, "<", $_ or die "Unable to open $_: $!\n";
+ binmode $in_fh;
+ my $gz = Compress::Zlib::gzopen($out_filename, "ab") or
+ die "Unable to open $out_filename: $!\n";
+
+ my $res;
+ while ($res = sysread($in_fh, my $str, 1024)) {
+ $gz->gzwrite($str) or
+ die "Unable to write: ".$gz->gzerror()."!\n";
+ }
+ unlink $_ or die "unlink $File::Find::name: $!\n";
+ } elsif (-f $_ && basename($_) eq "index") {
+ unlink $_ or die "unlink $_: $!\n";
+ }
+}
+
+__END__
+
+Data structures:
+
+
+$remotes = { # returned by read_all_remotes()
+ 'svn' => {
+ # svn-remote.svn.url=https://svn.musicpd.org
+ url => 'https://svn.musicpd.org',
+ # svn-remote.svn.fetch=mpd/trunk:trunk
+ fetch => {
+ 'mpd/trunk' => 'trunk',
+ },
+ # svn-remote.svn.tags=mpd/tags/*:tags/*
+ tags => {
+ path => {
+ left => 'mpd/tags',
+ right => '',
+ regex => qr!mpd/tags/([^/]+)$!,
+ glob => 'tags/*',
+ },
+ ref => {
+ left => 'tags',
+ right => '',
+ regex => qr!tags/([^/]+)$!,
+ glob => 'tags/*',
+ },
+ }
+ }
+};
+
+$log_entry hashref as returned by libsvn_log_entry()
+{
+ log => 'whitespace-formatted log entry
+', # trailing newline is preserved
+ revision => '8', # integer
+ date => '2004-02-24T17:01:44.108345Z', # commit date
+ author => 'committer name'
+};
+
+
+# this is generated by generate_diff();
+@mods = array of diff-index line hashes, each element represents one line
+ of diff-index output
+
+diff-index line ($m hash)
+{
+ mode_a => first column of diff-index output, no leading ':',
+ mode_b => second column of diff-index output,
+ sha1_b => sha1sum of the final blob,
+ chg => change type [MCRADT],
+ file_a => original file name of a file (iff chg is 'C' or 'R')
+ file_b => new/current file name of a file (any chg)
+}
+;
+
+# retval of read_url_paths{,_all}();
+$l_map = {
+ # repository root url
+ 'https://svn.musicpd.org' => {
+ # repository path # GIT_SVN_ID
+ 'mpd/trunk' => 'trunk',
+ 'mpd/tags/0.11.5' => 'tags/0.11.5',
+ },
+}
+
+Notes:
+ I don't trust the each() function on unless I created %hash myself
+ because the internal iterator may not have started at base.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 07:44:52 +0000