diff options
Diffstat (limited to 'git-svn.perl')
| -rwxr-xr-x | git-svn.perl | 5033 |
1 files changed, 174 insertions, 4859 deletions
diff --git a/git-svn.perl b/git-svn.perl index ca038ec842..bd5266c86b 100755 --- a/git-svn.perl +++ b/git-svn.perl @@ -10,6 +10,52 @@ use vars qw/ $AUTHOR $VERSION $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) @@ -17,10 +63,7 @@ my $cmd_dir_prefix = eval { my $git_dir_user_set = 1 if defined $ENV{GIT_DIR}; $ENV{GIT_DIR} ||= '.git'; -$Git::SVN::default_repo_id = 'svn'; -$Git::SVN::default_ref_id = $ENV{GIT_SVN_ID} || 'git-svn'; $Git::SVN::Ra::_log_window_size = 100; -$Git::SVN::_minimize_url = 'unset'; if (! exists $ENV{SVN_SSH} && exists $ENV{GIT_SSH}) { $ENV{SVN_SSH} = $ENV{GIT_SSH}; @@ -35,48 +78,35 @@ $Git::SVN::Log::TZ = $ENV{TZ}; $ENV{TZ} = 'UTC'; $| = 1; # unbuffer STDOUT -sub fatal (@) { print STDERR "@_\n"; exit 1 } +# All SVN commands do it. Otherwise we may die on SIGPIPE when the remote +# repository decides to close the connection which we expect to be kept alive. +$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 ($SVN::Core::VERSION lt '1.1.0') { + if (::compare_svn_version('1.1.0') < 0) { fatal "Need SVN::Core 1.1.0 or better (got $SVN::Core::VERSION)"; } } -my $can_compress = eval { require Compress::Zlib; 1}; -push @Git::SVN::Ra::ISA, 'SVN::Ra'; -push @SVN::Git::Editor::ISA, 'SVN::Delta::Editor'; -push @SVN::Git::Fetcher::ISA, 'SVN::Delta::Editor'; -use Carp qw/croak/; -use Digest::MD5; -use IO::File qw//; -use File::Basename qw/dirname basename/; -use File::Path qw/mkpath/; -use File::Spec; -use File::Find; -use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/; -use IPC::Open3; -use Git; -use Memoize; # core since 5.8.0, Jul 2002 - -BEGIN { - # import functions from Git into our packages, en masse - no strict 'refs'; - foreach (qw/command command_oneline command_noisy command_output_pipe - command_input_pipe command_close_pipe - command_bidi_pipe command_close_bidi_pipe/) { - for my $package ( qw(SVN::Git::Editor SVN::Git::Fetcher - Git::SVN::Migration Git::SVN::Log Git::SVN), - __PACKAGE__) { - *{"${package}::$_"} = \&{"Git::$_"}; - } - } - Memoize::memoize 'Git::config'; - Memoize::memoize 'Git::config_bool'; -} - -my ($SVN); $sha1 = qr/[a-f\d]{40}/; $sha1_short = qr/[a-f\d]{4,40}/; @@ -84,16 +114,19 @@ my ($_stdin, $_help, $_edit, $_message, $_file, $_branch_dest, $_template, $_shared, $_version, $_fetch_all, $_no_rebase, $_fetch_parent, - $_merge, $_strategy, $_dry_run, $_local, + $_merge, $_strategy, $_preserve_merges, $_dry_run, $_local, $_prefix, $_no_checkout, $_url, $_verbose, - $_git_format, $_commit_url, $_tag, $_merge_info, $_interactive); -$Git::SVN::_follow_parent = 1; -$SVN::Git::Fetcher::_placeholder_filename = ".gitignore"; + $_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' => \$SVN::Git::Fetcher::_ignore_regex, + 'ignore-paths=s' => \$Git::SVN::Fetcher::_ignore_regex, 'ignore-refs=s' => \$Git::SVN::Ra::_ignore_refs_regex ); my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent, 'authors-file|A=s' => \$_authors, @@ -126,10 +159,10 @@ my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared, 'rewrite-uuid=s' => sub { $icv{rewriteUUID} = $_[1] }, %remote_opts ); my %cmt_opts = ( 'edit|e' => \$_edit, - 'rmdir' => \$SVN::Git::Editor::_rmdir, - 'find-copies-harder' => \$SVN::Git::Editor::_find_copies_harder, - 'l=i' => \$SVN::Git::Editor::_rename_limit, - 'copy-similarity|C=i'=> \$SVN::Git::Editor::_cp_similarity + '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 = ( @@ -141,9 +174,9 @@ my %cmd = ( clone => [ \&cmd_clone, "Initialize and fetch revisions", { 'revision|r=s' => \$_revision, 'preserve-empty-dirs' => - \$SVN::Git::Fetcher::_preserve_empty_dirs, + \$Git::SVN::Fetcher::_preserve_empty_dirs, 'placeholder-filename=s' => - \$SVN::Git::Fetcher::_placeholder_filename, + \$Git::SVN::Fetcher::_placeholder_filename, %fc_opts, %init_opts } ], init => [ \&cmd_init, "Initialize a repo for tracking" . " (requires URL argument)", @@ -233,6 +266,7 @@ my %cmd = ( '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', @@ -246,7 +280,7 @@ my %cmd = ( { 'url' => \$_url, } ], 'blame' => [ \&Git::SVN::Log::cmd_blame, "Show what revision and author last modified each line of a file", - { 'git-format' => \$_git_format } ], + { 'git-format' => \$Git::SVN::Log::_git_format } ], 'reset' => [ \&cmd_reset, "Undo fetches back to the specified SVN revision", { 'revision|r=s' => \$_revision, @@ -344,9 +378,9 @@ Git::SVN::init_vars(); eval { Git::SVN::verify_remotes_sanity(); $cmd{$cmd}->[0]->(@ARGV); + post_fetch_checkout(); }; fatal $@ if $@; -post_fetch_checkout(); exit 0; ####################### primary functions ###################### @@ -440,15 +474,15 @@ sub do_git_init_db { command_noisy('config', "$pfx.$i", $icv{$i}); $set = $i; } - my $ignore_paths_regex = \$SVN::Git::Fetcher::_ignore_regex; + my $ignore_paths_regex = \$Git::SVN::Fetcher::_ignore_regex; command_noisy('config', "$pfx.ignore-paths", $$ignore_paths_regex) if defined $$ignore_paths_regex; my $ignore_refs_regex = \$Git::SVN::Ra::_ignore_refs_regex; command_noisy('config', "$pfx.ignore-refs", $$ignore_refs_regex) if defined $$ignore_refs_regex; - if (defined $SVN::Git::Fetcher::_preserve_empty_dirs) { - my $fname = \$SVN::Git::Fetcher::_placeholder_filename; + 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); } @@ -752,6 +786,44 @@ sub populate_merge_info { 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/); @@ -879,6 +951,7 @@ sub cmd_dcommit { } 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}; @@ -918,38 +991,34 @@ sub cmd_dcommit { }, mergeinfo => $_merge_info, svn_path => ''); - if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) { + + 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; - # we always want to rebase against the current HEAD, - # not any head that was passed to us - my @diff = command('diff-tree', $d, - $gs->refname, '--'); - my @finish; - if (@diff) { - @finish = rebase_cmd(); - print STDERR "W: $d and ", $gs->refname, - " differ, using @finish:\n", - join("\n", @diff), "\n"; - } else { - print "No changes between current HEAD and ", - $gs->refname, - "\nResetting to the latest ", - $gs->refname, "\n"; - @finish = qw/reset --mixed/; - } - command_noisy(@finish, $gs->refname); + my @diff = dcommit_rebase(@$linear_refs == 0, $d, + $gs->refname, undef); - $rewritten_parent = command_oneline(qw/rev-parse HEAD/); + $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); @@ -994,6 +1063,7 @@ sub cmd_dcommit { } $parents = \%p; $linear_refs = \@l; + undef $last_rev; } } } @@ -1042,8 +1112,7 @@ sub cmd_branch { " with the --destination argument.\n"; } foreach my $g (@{$allglobs}) { - # SVN::Git::Editor could probably be moved to Git.pm.. - my $re = SVN::Git::Editor::glob2pat($g->{path}->{left}); + my $re = Git::SVN::Editor::glob2pat($g->{path}->{left}); if ($_branch_dest =~ /$re/) { $glob = $g; last; @@ -1171,7 +1240,7 @@ sub cmd_show_ignore { my ($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 { + $gs->prop_walk($gs->path, $r, sub { my ($gs, $path, $props) = @_; print STDOUT "\n# $path\n"; my $s = $props->{'svn:ignore'} or return; @@ -1187,7 +1256,7 @@ sub cmd_show_externals { my ($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 { + $gs->prop_walk($gs->path, $r, sub { my ($gs, $path, $props) = @_; print STDOUT "\n# $path\n"; my $s = $props->{'svn:externals'} or return; @@ -1202,7 +1271,7 @@ sub cmd_create_ignore { my ($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 { + $gs->prop_walk($gs->path, $r, sub { my ($gs, $path, $props) = @_; # $path is of the form /path/to/dir/ $path = '.' . $path; @@ -1232,31 +1301,6 @@ sub cmd_mkdirs { $gs->mkemptydirs($_revision); } -sub canonicalize_path { - my ($path) = @_; - my $dot_slash_added = 0; - if (substr($path, 0, 1) ne "/") { - $path = "./" . $path; - $dot_slash_added = 1; - } - # File::Spec->canonpath doesn't collapse x/../y into y (for a - # good reason), so let's do this manually. - $path =~ s#/+#/#g; - $path =~ s#/\.(?:/|$)#/#g; - $path =~ s#/[^/]+/\.\.##g; - $path =~ s#/$##g; - $path =~ s#^\./## if $dot_slash_added; - $path =~ s#^/##; - $path =~ s#^\.$##; - return $path; -} - -sub canonicalize_url { - my ($url) = @_; - $url =~ s#^([^:]+://[^/]*/)(.*)$#$1 . canonicalize_path($2)#e; - return $url; -} - # get_svnprops(PATH) # ------------------ # Helper for cmd_propget and cmd_proplist below. @@ -1270,7 +1314,7 @@ sub get_svnprops { $path = $cmd_dir_prefix . $path; fatal("No such file or directory: $path") unless -e $path; my $is_dir = -d $path ? 1 : 0; - $path = $gs->{path} . '/' . $path; + $path = join_paths($gs->path, $path); # canonicalize the path (otherwise libsvn will abort or fail to # find the file) @@ -1371,8 +1415,8 @@ sub cmd_commit_diff { fatal("Needed URL or usable git-svn --id in ", "the command-line\n", $usage); } - $url = $gs->{url}; - $svn_path = $gs->{path}; + $url = $gs->url; + $svn_path = $gs->path; } unless (defined $_revision) { fatal("-r|--revision is a required argument\n", $usage); @@ -1401,29 +1445,11 @@ sub cmd_commit_diff { tree_b => $tb, editor_cb => sub { print "Committed r$_[0]\n" }, svn_path => $svn_path ); - if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) { + if (!Git::SVN::Editor->new(\%ed_opts)->apply_diff) { print "No changes\n$ta == $tb\n"; } } -sub escape_uri_only { - my ($uri) = @_; - my @tmp; - foreach (split m{/}, $uri) { - s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg; - push @tmp, $_; - } - join('/', @tmp); -} - -sub escape_url { - my ($url) = @_; - if ($url =~ m#^([^:]+)://([^/]*)(.*)$#) { - my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3)); - $url = "$scheme://$domain$uri"; - } - $url; -} sub cmd_info { my $path = canonicalize_path(defined($_[0]) ? $_[0] : "."); @@ -1448,28 +1474,28 @@ sub cmd_info { # canonicalize_path() will return "" to make libsvn 1.5.x happy, $path = "." if $path eq ""; - my $full_url = $url . ($fullpath eq "" ? "" : "/$fullpath"); + my $full_url = canonicalize_url( add_path_to_url( $url, $fullpath ) ); if ($_url) { - print escape_url($full_url), "\n"; + print "$full_url\n"; return; } my $result = "Path: $path\n"; $result .= "Name: " . basename($path) . "\n" if $file_type ne "dir"; - $result .= "URL: " . escape_url($full_url) . "\n"; + $result .= "URL: $full_url\n"; eval { my $repos_root = $gs->repos_root; Git::SVN::remove_username($repos_root); - $result .= "Repository Root: " . escape_url($repos_root) . "\n"; + $result .= "Repository Root: " . canonicalize_url($repos_root) . "\n"; }; if ($@) { $result .= "Repository Root: (offline)\n"; } ::_req_svn(); $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A" && - ($SVN::Core::VERSION le '1.5.4' || $file_type ne "dir"); + (::compare_svn_version('1.5.4') <= 0 || $file_type ne "dir"); $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n"; $result .= "Node Kind: " . @@ -1556,7 +1582,7 @@ sub cmd_reset { } sub cmd_gc { - if (!$can_compress) { + if (!can_compress()) { warn "Compress::Zlib could not be found; unhandled.log " . "files will not be compressed.\n"; } @@ -1570,13 +1596,14 @@ sub rebase_cmd { 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; - return if verify_ref('refs/heads/master^0'); # look for "trunk" ref if it exists my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}}; @@ -1589,9 +1616,8 @@ sub post_fetch_checkout { } } - 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')); + 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"; @@ -1609,7 +1635,9 @@ sub post_fetch_checkout { sub complete_svn_url { my ($url, $path) = @_; - $path =~ s#/+$##; + $path = canonicalize_path($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 ", @@ -1626,7 +1654,7 @@ sub complete_url_ls_init { print STDERR "W: $switch not specified\n"; return; } - $repo_path =~ s#/+$##; + $repo_path = canonicalize_path($repo_path); if ($repo_path =~ m#^[a-z\+]+://#) { $ra = Git::SVN::Ra->new($repo_path); $repo_path = ''; @@ -1637,18 +1665,18 @@ sub complete_url_ls_init { "and a separate URL is not specified"); } } - my $url = $ra->{url}; + 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 $gs->{url})) { + if ($orig_url && ($orig_url ne $gs->url)) { die "$k already set: $orig_url\n", - "wanted to set to: $gs->{url}\n"; + "wanted to set to: $gs->url\n"; } - command_oneline('config', $k, $gs->{url}) unless $orig_url; - my $remote_path = "$gs->{path}/$repo_path"; + 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 =~ s#^/##g; $remote_path .= "/*" if $remote_path !~ /\*/; my ($n) = ($switch =~ /^--(\w+)/); @@ -1991,13 +2019,13 @@ sub md5sum { } elsif (!$ref) { $md5->add($arg) or croak $!; } else { - ::fatal "Can't provide MD5 hash for unknown ref type: '", $ref, "'"; + 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") { + if (can_compress() && -f $_ && basename($_) eq "unhandled.log") { my $out_filename = $_ . ".gz"; open my $in_fh, "<", $_ or die "Unable to open $_: $!\n"; binmode $in_fh; @@ -2015,4719 +2043,6 @@ sub gc_directory { } } -package Git::SVN; -use strict; -use warnings; -use Fcntl qw/:DEFAULT :seek/; -use constant rev_map_fmt => 'NH40'; -use vars qw/$default_repo_id $default_ref_id $_no_metadata $_follow_parent - $_repack $_repack_flags $_use_svm_props $_head - $_use_svnsync_props $no_reuse_existing $_minimize_url - $_use_log_author $_add_author_from $_localtime/; -use Carp qw/croak/; -use File::Path qw/mkpath/; -use File::Copy qw/copy/; -use IPC::Open3; -use Time::Local; -use Memoize; # core since 5.8.0, Jul 2002 -use Memoize::Storable; - -my ($_gc_nr, $_gc_period); - -# properties that we do not log: -my %SKIP_PROP; -BEGIN { - %SKIP_PROP = map { $_ => 1 } qw/svn:wc:ra_dav:version-url - svn:special svn:executable - svn:entry:committed-rev - svn:entry:last-author - svn:entry:uuid - svn:entry:committed-date/; - - # some options are read globally, but can be overridden locally - # per [svn-remote "..."] section. Command-line options will *NOT* - # override options set in an [svn-remote "..."] section - no strict 'refs'; - for my $option (qw/follow_parent no_metadata use_svm_props - use_svnsync_props/) { - my $key = $option; - $key =~ tr/_//d; - my $prop = "-$option"; - *$option = sub { - my ($self) = @_; - return $self->{$prop} if exists $self->{$prop}; - my $k = "svn-remote.$self->{repo_id}.$key"; - eval { command_oneline(qw/config --get/, $k) }; - if ($@) { - $self->{$prop} = ${"Git::SVN::_$option"}; - } else { - my $v = command_oneline(qw/config --bool/,$k); - $self->{$prop} = $v eq 'false' ? 0 : 1; - } - return $self->{$prop}; - } - } -} - - -my (%LOCKFILES, %INDEX_FILES); -END { - unlink keys %LOCKFILES if %LOCKFILES; - unlink keys %INDEX_FILES if %INDEX_FILES; -} - -sub resolve_local_globs { - my ($url, $fetch, $glob_spec) = @_; - return unless defined $glob_spec; - my $ref = $glob_spec->{ref}; - my $path = $glob_spec->{path}; - foreach (command(qw#for-each-ref --format=%(refname) refs/#)) { - next unless m#^$ref->{regex}$#; - my $p = $1; - my $pathname = desanitize_refname($path->full_path($p)); - my $refname = desanitize_refname($ref->full_path($p)); - if (my $existing = $fetch->{$pathname}) { - if ($existing ne $refname) { - die "Refspec conflict:\n", - "existing: $existing\n", - " globbed: $refname\n"; - } - my $u = (::cmt_metadata("$refname"))[0]; - $u =~ s!^\Q$url\E(/|$)!! or die - "$refname: '$url' not found in '$u'\n"; - if ($pathname ne $u) { - warn "W: Refspec glob conflict ", - "(ref: $refname):\n", - "expected path: $pathname\n", - " real path: $u\n", - "Continuing ahead with $u\n"; - next; - } - } else { - $fetch->{$pathname} = $refname; - } - } -} - -sub parse_revision_argument { - my ($base, $head) = @_; - if (!defined $::_revision || $::_revision eq 'BASE:HEAD') { - return ($base, $head); - } - return ($1, $2) if ($::_revision =~ /^(\d+):(\d+)$/); - return ($::_revision, $::_revision) if ($::_revision =~ /^\d+$/); - return ($head, $head) if ($::_revision eq 'HEAD'); - return ($base, $1) if ($::_revision =~ /^BASE:(\d+)$/); - return ($1, $head) if ($::_revision =~ /^(\d+):HEAD$/); - die "revision argument: $::_revision not understood by git-svn\n"; -} - -sub fetch_all { - my ($repo_id, $remotes) = @_; - if (ref $repo_id) { - my $gs = $repo_id; - $repo_id = undef; - $repo_id = $gs->{repo_id}; - } - $remotes ||= read_all_remotes(); - my $remote = $remotes->{$repo_id} or - die "[svn-remote \"$repo_id\"] unknown\n"; - my $fetch = $remote->{fetch}; - my $url = $remote->{url} or die "svn-remote.$repo_id.url not defined\n"; - my (@gs, @globs); - my $ra = Git::SVN::Ra->new($url); - my $uuid = $ra->get_uuid; - my $head = $ra->get_latest_revnum; - - # ignore errors, $head revision may not even exist anymore - eval { $ra->get_log("", $head, 0, 1, 0, 1, sub { $head = $_[1] }) }; - warn "W: $@\n" if $@; - - my $base = defined $fetch ? $head : 0; - - # read the max revs for wildcard expansion (branches/*, tags/*) - foreach my $t (qw/branches tags/) { - defined $remote->{$t} or next; - push @globs, @{$remote->{$t}}; - - my $max_rev = eval { tmp_config(qw/--int --get/, - "svn-remote.$repo_id.${t}-maxRev") }; - if (defined $max_rev && ($max_rev < $base)) { - $base = $max_rev; - } elsif (!defined $max_rev) { - $base = 0; - } - } - - if ($fetch) { - foreach my $p (sort keys %$fetch) { - my $gs = Git::SVN->new($fetch->{$p}, $repo_id, $p); - my $lr = $gs->rev_map_max; - if (defined $lr) { - $base = $lr if ($lr < $base); - } - push @gs, $gs; - } - } - - ($base, $head) = parse_revision_argument($base, $head); - $ra->gs_fetch_loop_common($base, $head, \@gs, \@globs); -} - -sub read_all_remotes { - my $r = {}; - my $use_svm_props = eval { command_oneline(qw/config --bool - svn.useSvmProps/) }; - $use_svm_props = $use_svm_props eq 'true' if $use_svm_props; - my $svn_refspec = qr{\s*(.*?)\s*:\s*(.+?)\s*}; - foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) { - if (m!^(.+)\.fetch=$svn_refspec$!) { - my ($remote, $local_ref, $remote_ref) = ($1, $2, $3); - die("svn-remote.$remote: remote ref '$remote_ref' " - . "must start with 'refs/'\n") - unless $remote_ref =~ m{^refs/}; - $local_ref = uri_decode($local_ref); - $r->{$remote}->{fetch}->{$local_ref} = $remote_ref; - $r->{$remote}->{svm} = {} if $use_svm_props; - } elsif (m!^(.+)\.usesvmprops=\s*(.*)\s*$!) { - $r->{$1}->{svm} = {}; - } elsif (m!^(.+)\.url=\s*(.*)\s*$!) { - $r->{$1}->{url} = $2; - } elsif (m!^(.+)\.pushurl=\s*(.*)\s*$!) { - $r->{$1}->{pushurl} = $2; - } elsif (m!^(.+)\.ignore-refs=\s*(.*)\s*$!) { - $r->{$1}->{ignore_refs_regex} = $2; - } elsif (m!^(.+)\.(branches|tags)=$svn_refspec$!) { - my ($remote, $t, $local_ref, $remote_ref) = - ($1, $2, $3, $4); - die("svn-remote.$remote: remote ref '$remote_ref' ($t) " - . "must start with 'refs/'\n") - unless $remote_ref =~ m{^refs/}; - $local_ref = uri_decode($local_ref); - my $rs = { - t => $t, - remote => $remote, - path => Git::SVN::GlobSpec->new($local_ref, 1), - ref => Git::SVN::GlobSpec->new($remote_ref, 0) }; - if (length($rs->{ref}->{right}) != 0) { - die "The '*' glob character must be the last ", - "character of '$remote_ref'\n"; - } - push @{ $r->{$remote}->{$t} }, $rs; - } - } - - map { - if (defined $r->{$_}->{svm}) { - my $svm; - eval { - my $section = "svn-remote.$_"; - $svm = { - source => tmp_config('--get', - "$section.svm-source"), - replace => tmp_config('--get', - "$section.svm-replace"), - } - }; - $r->{$_}->{svm} = $svm; - } - } keys %$r; - - foreach my $remote (keys %$r) { - foreach ( grep { defined $_ } - map { $r->{$remote}->{$_} } qw(branches tags) ) { - foreach my $rs ( @$_ ) { - $rs->{ignore_refs_regex} = - $r->{$remote}->{ignore_refs_regex}; - } - } - } - - $r; -} - -sub init_vars { - $_gc_nr = $_gc_period = 1000; - if (defined $_repack || defined $_repack_flags) { - warn "Repack options are obsolete; they have no effect.\n"; - } -} - -sub verify_remotes_sanity { - return unless -d $ENV{GIT_DIR}; - my %seen; - foreach (command(qw/config -l/)) { - if (m!^svn-remote\.(?:.+)\.fetch=.*:refs/remotes/(\S+)\s*$!) { - if ($seen{$1}) { - die "Remote ref refs/remote/$1 is tracked by", - "\n \"$_\"\nand\n \"$seen{$1}\"\n", - "Please resolve this ambiguity in ", - "your git configuration file before ", - "continuing\n"; - } - $seen{$1} = $_; - } - } -} - -sub find_existing_remote { - my ($url, $remotes) = @_; - return undef if $no_reuse_existing; - my $existing; - foreach my $repo_id (keys %$remotes) { - my $u = $remotes->{$repo_id}->{url} or next; - next if $u ne $url; - $existing = $repo_id; - last; - } - $existing; -} - -sub init_remote_config { - my ($self, $url, $no_write) = @_; - $url =~ s!/+$!!; # strip trailing slash - my $r = read_all_remotes(); - my $existing = find_existing_remote($url, $r); - if ($existing) { - unless ($no_write) { - print STDERR "Using existing ", - "[svn-remote \"$existing\"]\n"; - } - $self->{repo_id} = $existing; - } elsif ($_minimize_url) { - my $min_url = Git::SVN::Ra->new($url)->minimize_url; - $existing = find_existing_remote($min_url, $r); - if ($existing) { - unless ($no_write) { - print STDERR "Using existing ", - "[svn-remote \"$existing\"]\n"; - } - $self->{repo_id} = $existing; - } - if ($min_url ne $url) { - unless ($no_write) { - print STDERR "Using higher level of URL: ", - "$url => $min_url\n"; - } - my $old_path = $self->{path}; - $self->{path} = $url; - $self->{path} =~ s!^\Q$min_url\E(/|$)!!; - if (length $old_path) { - $self->{path} .= "/$old_path"; - } - $url = $min_url; - } - } - my $orig_url; - if (!$existing) { - # verify that we aren't overwriting anything: - $orig_url = eval { - command_oneline('config', '--get', - "svn-remote.$self->{repo_id}.url") - }; - if ($orig_url && ($orig_url ne $url)) { - die "svn-remote.$self->{repo_id}.url already set: ", - "$orig_url\nwanted to set to: $url\n"; - } - } - my ($xrepo_id, $xpath) = find_ref($self->refname); - if (!$no_write && defined $xpath) { - die "svn-remote.$xrepo_id.fetch already set to track ", - "$xpath:", $self->refname, "\n"; - } - unless ($no_write) { - command_noisy('config', - "svn-remote.$self->{repo_id}.url", $url); - $self->{path} =~ s{^/}{}; - $self->{path} =~ s{%([0-9A-F]{2})}{chr hex($1)}ieg; - command_noisy('config', '--add', - "svn-remote.$self->{repo_id}.fetch", - "$self->{path}:".$self->refname); - } - $self->{url} = $url; -} - -sub find_by_url { # repos_root and, path are optional - my ($class, $full_url, $repos_root, $path) = @_; - - return undef unless defined $full_url; - remove_username($full_url); - remove_username($repos_root) if defined $repos_root; - my $remotes = read_all_remotes(); - if (defined $full_url && defined $repos_root && !defined $path) { - $path = $full_url; - $path =~ s#^\Q$repos_root\E(?:/|$)##; - } - foreach my $repo_id (keys %$remotes) { - my $u = $remotes->{$repo_id}->{url} or next; - remove_username($u); - next if defined $repos_root && $repos_root ne $u; - - my $fetch = $remotes->{$repo_id}->{fetch} || {}; - foreach my $t (qw/branches tags/) { - foreach my $globspec (@{$remotes->{$repo_id}->{$t}}) { - resolve_local_globs($u, $fetch, $globspec); - } - } - my $p = $path; - my $rwr = rewrite_root({repo_id => $repo_id}); - my $svm = $remotes->{$repo_id}->{svm} - if defined $remotes->{$repo_id}->{svm}; - unless (defined $p) { - $p = $full_url; - my $z = $u; - my $prefix = ''; - if ($rwr) { - $z = $rwr; - remove_username($z); - } elsif (defined $svm) { - $z = $svm->{source}; - $prefix = $svm->{replace}; - $prefix =~ s#^\Q$u\E(?:/|$)##; - $prefix =~ s#/$##; - } - $p =~ s#^\Q$z\E(?:/|$)#$prefix# or next; - } - foreach my $f (keys %$fetch) { - next if $f ne $p; - return Git::SVN->new($fetch->{$f}, $repo_id, $f); - } - } - undef; -} - -sub init { - my ($class, $url, $path, $repo_id, $ref_id, $no_write) = @_; - my $self = _new($class, $repo_id, $ref_id, $path); - if (defined $url) { - $self->init_remote_config($url, $no_write); - } - $self; -} - -sub find_ref { - my ($ref_id) = @_; - foreach (command(qw/config -l/)) { - next unless m!^svn-remote\.(.+)\.fetch= - \s*(.*?)\s*:\s*(.+?)\s*$!x; - my ($repo_id, $path, $ref) = ($1, $2, $3); - if ($ref eq $ref_id) { - $path = '' if ($path =~ m#^\./?#); - return ($repo_id, $path); - } - } - (undef, undef, undef); -} - -sub new { - my ($class, $ref_id, $repo_id, $path) = @_; - if (defined $ref_id && !defined $repo_id && !defined $path) { - ($repo_id, $path) = find_ref($ref_id); - if (!defined $repo_id) { - die "Could not find a \"svn-remote.*.fetch\" key ", - "in the repository configuration matching: ", - "$ref_id\n"; - } - } - my $self = _new($class, $repo_id, $ref_id, $path); - if (!defined $self->{path} || !length $self->{path}) { - my $fetch = command_oneline('config', '--get', - "svn-remote.$repo_id.fetch", - ":$ref_id\$") or - die "Failed to read \"svn-remote.$repo_id.fetch\" ", - "\":$ref_id\$\" in config\n"; - ($self->{path}, undef) = split(/\s*:\s*/, $fetch); - } - $self->{path} =~ s{/+}{/}g; - $self->{path} =~ s{\A/}{}; - $self->{path} =~ s{/\z}{}; - $self->{url} = command_oneline('config', '--get', - "svn-remote.$repo_id.url") or - die "Failed to read \"svn-remote.$repo_id.url\" in config\n"; - $self->{pushurl} = eval { command_oneline('config', '--get', - "svn-remote.$repo_id.pushurl") }; - $self->rebuild; - $self; -} - -sub refname { - my ($refname) = $_[0]->{ref_id} ; - - # It cannot end with a slash /, we'll throw up on this because - # SVN can't have directories with a slash in their name, either: - if ($refname =~ m{/$}) { - die "ref: '$refname' ends with a trailing slash, this is ", - "not permitted by git nor Subversion\n"; - } - - # It cannot have ASCII control character space, tilde ~, caret ^, - # colon :, question-mark ?, asterisk *, space, or open bracket [ - # anywhere. - # - # Additionally, % must be escaped because it is used for escaping - # and we want our escaped refname to be reversible - $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg; - - # no slash-separated component can begin with a dot . - # /.* becomes /%2E* - $refname =~ s{/\.}{/%2E}g; - - # It cannot have two consecutive dots .. anywhere - # .. becomes %2E%2E - $refname =~ s{\.\.}{%2E%2E}g; - - # trailing dots and .lock are not allowed - # .$ becomes %2E and .lock becomes %2Elock - $refname =~ s{\.(?=$|lock$)}{%2E}; - - # the sequence @{ is used to access the reflog - # @{ becomes %40{ - $refname =~ s{\@\{}{%40\{}g; - - return $refname; -} - -sub desanitize_refname { - my ($refname) = @_; - $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg; - return $refname; -} - -sub svm_uuid { - my ($self) = @_; - return $self->{svm}->{uuid} if $self->svm; - $self->ra; - unless ($self->{svm}) { - die "SVM UUID not cached, and reading remotely failed\n"; - } - $self->{svm}->{uuid}; -} - -sub svm { - my ($self) = @_; - return $self->{svm} if $self->{svm}; - my $svm; - # see if we have it in our config, first: - eval { - my $section = "svn-remote.$self->{repo_id}"; - $svm = { - source => tmp_config('--get', "$section.svm-source"), - uuid => tmp_config('--get', "$section.svm-uuid"), - replace => tmp_config('--get', "$section.svm-replace"), - } - }; - if ($svm && $svm->{source} && $svm->{uuid} && $svm->{replace}) { - $self->{svm} = $svm; - } - $self->{svm}; -} - -sub _set_svm_vars { - my ($self, $ra) = @_; - return $ra if $self->svm; - - my @err = ( "useSvmProps set, but failed to read SVM properties\n", - "(svm:source, svm:uuid) ", - "from the following URLs:\n" ); - sub read_svm_props { - my ($self, $ra, $path, $r) = @_; - my $props = ($ra->get_dir($path, $r))[2]; - my $src = $props->{'svm:source'}; - my $uuid = $props->{'svm:uuid'}; - return undef if (!$src || !$uuid); - - chomp($src, $uuid); - - $uuid =~ m{^[0-9a-f\-]{30,}$}i - or die "doesn't look right - svm:uuid is '$uuid'\n"; - - # the '!' is used to mark the repos_root!/relative/path - $src =~ s{/?!/?}{/}; - $src =~ s{/+$}{}; # no trailing slashes please - # username is of no interest - $src =~ s{(^[a-z\+]*://)[^/@]*@}{$1}; - - my $replace = $ra->{url}; - $replace .= "/$path" if length $path; - - my $section = "svn-remote.$self->{repo_id}"; - tmp_config("$section.svm-source", $src); - tmp_config("$section.svm-replace", $replace); - tmp_config("$section.svm-uuid", $uuid); - $self->{svm} = { - source => $src, - uuid => $uuid, - replace => $replace - }; - } - - my $r = $ra->get_latest_revnum; - my $path = $self->{path}; - my %tried; - while (length $path) { - unless ($tried{"$self->{url}/$path"}) { - return $ra if $self->read_svm_props($ra, $path, $r); - $tried{"$self->{url}/$path"} = 1; - } - $path =~ s#/?[^/]+$##; - } - die "Path: '$path' should be ''\n" if $path ne ''; - return $ra if $self->read_svm_props($ra, $path, $r); - $tried{"$self->{url}/$path"} = 1; - - if ($ra->{repos_root} eq $self->{url}) { - die @err, (map { " $_\n" } keys %tried), "\n"; - } - - # nope, make sure we're connected to the repository root: - my $ok; - my @tried_b; - $path = $ra->{svn_path}; - $ra = Git::SVN::Ra->new($ra->{repos_root}); - while (length $path) { - unless ($tried{"$ra->{url}/$path"}) { - $ok = $self->read_svm_props($ra, $path, $r); - last if $ok; - $tried{"$ra->{url}/$path"} = 1; - } - $path =~ s#/?[^/]+$##; - } - die "Path: '$path' should be ''\n" if $path ne ''; - $ok ||= $self->read_svm_props($ra, $path, $r); - $tried{"$ra->{url}/$path"} = 1; - if (!$ok) { - die @err, (map { " $_\n" } keys %tried), "\n"; - } - Git::SVN::Ra->new($self->{url}); -} - -sub svnsync { - my ($self) = @_; - return $self->{svnsync} if $self->{svnsync}; - - if ($self->no_metadata) { - die "Can't have both 'noMetadata' and ", - "'useSvnsyncProps' options set!\n"; - } - if ($self->rewrite_root) { - die "Can't have both 'useSvnsyncProps' and 'rewriteRoot' ", - "options set!\n"; - } - if ($self->rewrite_uuid) { - die "Can't have both 'useSvnsyncProps' and 'rewriteUUID' ", - "options set!\n"; - } - - my $svnsync; - # see if we have it in our config, first: - eval { - my $section = "svn-remote.$self->{repo_id}"; - - my $url = tmp_config('--get', "$section.svnsync-url"); - ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or - die "doesn't look right - svn:sync-from-url is '$url'\n"; - - my $uuid = tmp_config('--get', "$section.svnsync-uuid"); - ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or - die "doesn't look right - svn:sync-from-uuid is '$uuid'\n"; - - $svnsync = { url => $url, uuid => $uuid } - }; - if ($svnsync && $svnsync->{url} && $svnsync->{uuid}) { - return $self->{svnsync} = $svnsync; - } - - my $err = "useSvnsyncProps set, but failed to read " . - "svnsync property: svn:sync-from-"; - my $rp = $self->ra->rev_proplist(0); - - my $url = $rp->{'svn:sync-from-url'} or die $err . "url\n"; - ($url) = ($url =~ m{^([a-z\+]+://\S+)$}) or - die "doesn't look right - svn:sync-from-url is '$url'\n"; - - my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n"; - ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}i) or - die "doesn't look right - svn:sync-from-uuid is '$uuid'\n"; - - my $section = "svn-remote.$self->{repo_id}"; - tmp_config('--add', "$section.svnsync-uuid", $uuid); - tmp_config('--add', "$section.svnsync-url", $url); - return $self->{svnsync} = { url => $url, uuid => $uuid }; -} - -# this allows us to memoize our SVN::Ra UUID locally and avoid a -# remote lookup (useful for 'git svn log'). -sub ra_uuid { - my ($self) = @_; - unless ($self->{ra_uuid}) { - my $key = "svn-remote.$self->{repo_id}.uuid"; - my $uuid = eval { tmp_config('--get', $key) }; - if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/i) { - $self->{ra_uuid} = $uuid; - } else { - die "ra_uuid called without URL\n" unless $self->{url}; - $self->{ra_uuid} = $self->ra->get_uuid; - tmp_config('--add', $key, $self->{ra_uuid}); - } - } - $self->{ra_uuid}; -} - -sub _set_repos_root { - my ($self, $repos_root) = @_; - my $k = "svn-remote.$self->{repo_id}.reposRoot"; - $repos_root ||= $self->ra->{repos_root}; - tmp_config($k, $repos_root); - $repos_root; -} - -sub repos_root { - my ($self) = @_; - my $k = "svn-remote.$self->{repo_id}.reposRoot"; - eval { tmp_config('--get', $k) } || $self->_set_repos_root; -} - -sub ra { - my ($self) = shift; - my $ra = Git::SVN::Ra->new($self->{url}); - $self->_set_repos_root($ra->{repos_root}); - if ($self->use_svm_props && !$self->{svm}) { - if ($self->no_metadata) { - die "Can't have both 'noMetadata' and ", - "'useSvmProps' options set!\n"; - } elsif ($self->use_svnsync_props) { - die "Can't have both 'useSvnsyncProps' and ", - "'useSvmProps' options set!\n"; - } - $ra = $self->_set_svm_vars($ra); - $self->{-want_revprops} = 1; - } - $ra; -} - -# prop_walk(PATH, REV, SUB) -# ------------------------- -# Recursively traverse PATH at revision REV and invoke SUB for each -# directory that contains a SVN property. SUB will be invoked as -# follows: &SUB(gs, path, props); where `gs' is this instance of -# Git::SVN, `path' the path to the directory where the properties -# `props' were found. The `path' will be relative to point of checkout, -# that is, if url://repo/trunk is the current Git branch, and that -# directory contains a sub-directory `d', SUB will be invoked with `/d/' -# as `path' (note the trailing `/'). -sub prop_walk { - my ($self, $path, $rev, $sub) = @_; - - $path =~ s#^/##; - my ($dirent, undef, $props) = $self->ra->get_dir($path, $rev); - $path =~ s#^/*#/#g; - my $p = $path; - # Strip the irrelevant part of the path. - $p =~ s#^/+\Q$self->{path}\E(/|$)#/#; - # Ensure the path is terminated by a `/'. - $p =~ s#/*$#/#; - - # The properties contain all the internal SVN stuff nobody - # (usually) cares about. - my $interesting_props = 0; - foreach (keys %{$props}) { - # If it doesn't start with `svn:', it must be a - # user-defined property. - ++$interesting_props and next if $_ !~ /^svn:/; - # FIXME: Fragile, if SVN adds new public properties, - # this needs to be updated. - ++$interesting_props if /^svn:(?:ignore|keywords|executable - |eol-style|mime-type - |externals|needs-lock)$/x; - } - &$sub($self, $p, $props) if $interesting_props; - - foreach (sort keys %$dirent) { - next if $dirent->{$_}->{kind} != $SVN::Node::dir; - $self->prop_walk($self->{path} . $p . $_, $rev, $sub); - } -} - -sub last_rev { ($_[0]->last_rev_commit)[0] } -sub last_commit { ($_[0]->last_rev_commit)[1] } - -# returns the newest SVN revision number and newest commit SHA1 -sub last_rev_commit { - my ($self) = @_; - if (defined $self->{last_rev} && defined $self->{last_commit}) { - return ($self->{last_rev}, $self->{last_commit}); - } - my $c = ::verify_ref($self->refname.'^0'); - if ($c && !$self->use_svm_props && !$self->no_metadata) { - my $rev = (::cmt_metadata($c))[1]; - if (defined $rev) { - ($self->{last_rev}, $self->{last_commit}) = ($rev, $c); - return ($rev, $c); - } - } - my $map_path = $self->map_path; - unless (-e $map_path) { - ($self->{last_rev}, $self->{last_commit}) = (undef, undef); - return (undef, undef); - } - my ($rev, $commit) = $self->rev_map_max(1); - ($self->{last_rev}, $self->{last_commit}) = ($rev, $commit); - return ($rev, $commit); -} - -sub get_fetch_range { - my ($self, $min, $max) = @_; - $max ||= $self->ra->get_latest_revnum; - $min ||= $self->rev_map_max; - (++$min, $max); -} - -sub tmp_config { - my (@args) = @_; - my $old_def_config = "$ENV{GIT_DIR}/svn/config"; - my $config = "$ENV{GIT_DIR}/svn/.metadata"; - if (! -f $config && -f $old_def_config) { - rename $old_def_config, $config or - die "Failed rename $old_def_config => $config: $!\n"; - } - my $old_config = $ENV{GIT_CONFIG}; - $ENV{GIT_CONFIG} = $config; - $@ = undef; - my @ret = eval { - unless (-f $config) { - mkfile($config); - open my $fh, '>', $config or - die "Can't open $config: $!\n"; - print $fh "; This file is used internally by ", - "git-svn\n" or die - "Couldn't write to $config: $!\n"; - print $fh "; You should not have to edit it\n" or - die "Couldn't write to $config: $!\n"; - close $fh or die "Couldn't close $config: $!\n"; - } - command('config', @args); - }; - my $err = $@; - if (defined $old_config) { - $ENV{GIT_CONFIG} = $old_config; - } else { - delete $ENV{GIT_CONFIG}; - } - die $err if $err; - wantarray ? @ret : $ret[0]; -} - -sub tmp_index_do { - my ($self, $sub) = @_; - my $old_index = $ENV{GIT_INDEX_FILE}; - $ENV{GIT_INDEX_FILE} = $self->{index}; - $@ = undef; - my @ret = eval { - my ($dir, $base) = ($self->{index} =~ m#^(.*?)/?([^/]+)$#); - mkpath([$dir]) unless -d $dir; - &$sub; - }; - my $err = $@; - if (defined $old_index) { - $ENV{GIT_INDEX_FILE} = $old_index; - } else { - delete $ENV{GIT_INDEX_FILE}; - } - die $err if $err; - wantarray ? @ret : $ret[0]; -} - -sub assert_index_clean { - my ($self, $treeish) = @_; - - $self->tmp_index_do(sub { - command_noisy('read-tree', $treeish) unless -e $self->{index}; - my $x = command_oneline('write-tree'); - my ($y) = (command(qw/cat-file commit/, $treeish) =~ - /^tree ($::sha1)/mo); - return if $y eq $x; - - warn "Index mismatch: $y != $x\nrereading $treeish\n"; - unlink $self->{index} or die "unlink $self->{index}: $!\n"; - command_noisy('read-tree', $treeish); - $x = command_oneline('write-tree'); - if ($y ne $x) { - ::fatal "trees ($treeish) $y != $x\n", - "Something is seriously wrong..."; - } - }); -} - -sub get_commit_parents { - my ($self, $log_entry) = @_; - my (%seen, @ret, @tmp); - # legacy support for 'set-tree'; this is only used by set_tree_cb: - if (my $ip = $self->{inject_parents}) { - if (my $commit = delete $ip->{$log_entry->{revision}}) { - push @tmp, $commit; - } - } - if (my $cur = ::verify_ref($self->refname.'^0')) { - push @tmp, $cur; - } - if (my $ipd = $self->{inject_parents_dcommit}) { - if (my $commit = delete $ipd->{$log_entry->{revision}}) { - push @tmp, @$commit; - } - } - push @tmp, $_ foreach (@{$log_entry->{parents}}, @tmp); - while (my $p = shift @tmp) { - next if $seen{$p}; - $seen{$p} = 1; - push @ret, $p; - } - @ret; -} - -sub rewrite_root { - my ($self) = @_; - return $self->{-rewrite_root} if exists $self->{-rewrite_root}; - my $k = "svn-remote.$self->{repo_id}.rewriteRoot"; - my $rwr = eval { command_oneline(qw/config --get/, $k) }; - if ($rwr) { - $rwr =~ s#/+$##; - if ($rwr !~ m#^[a-z\+]+://#) { - die "$rwr is not a valid URL (key: $k)\n"; - } - } - $self->{-rewrite_root} = $rwr; -} - -sub rewrite_uuid { - my ($self) = @_; - return $self->{-rewrite_uuid} if exists $self->{-rewrite_uuid}; - my $k = "svn-remote.$self->{repo_id}.rewriteUUID"; - my $rwid = eval { command_oneline(qw/config --get/, $k) }; - if ($rwid) { - $rwid =~ s#/+$##; - if ($rwid !~ m#^[a-f0-9]{8}-(?:[a-f0-9]{4}-){3}[a-f0-9]{12}$#) { - die "$rwid is not a valid UUID (key: $k)\n"; - } - } - $self->{-rewrite_uuid} = $rwid; -} - -sub metadata_url { - my ($self) = @_; - ($self->rewrite_root || $self->{url}) . - (length $self->{path} ? '/' . $self->{path} : ''); -} - -sub full_url { - my ($self) = @_; - $self->{url} . (length $self->{path} ? '/' . $self->{path} : ''); -} - -sub full_pushurl { - my ($self) = @_; - if ($self->{pushurl}) { - return $self->{pushurl} . (length $self->{path} ? '/' . - $self->{path} : ''); - } else { - return $self->full_url; - } -} - -sub set_commit_header_env { - my ($log_entry) = @_; - my %env; - foreach my $ned (qw/NAME EMAIL DATE/) { - foreach my $ac (qw/AUTHOR COMMITTER/) { - $env{"GIT_${ac}_${ned}"} = $ENV{"GIT_${ac}_${ned}"}; - } - } - - $ENV{GIT_AUTHOR_NAME} = $log_entry->{name}; - $ENV{GIT_AUTHOR_EMAIL} = $log_entry->{email}; - $ENV{GIT_AUTHOR_DATE} = $ENV{GIT_COMMITTER_DATE} = $log_entry->{date}; - - $ENV{GIT_COMMITTER_NAME} = (defined $log_entry->{commit_name}) - ? $log_entry->{commit_name} - : $log_entry->{name}; - $ENV{GIT_COMMITTER_EMAIL} = (defined $log_entry->{commit_email}) - ? $log_entry->{commit_email} - : $log_entry->{email}; - \%env; -} - -sub restore_commit_header_env { - my ($env) = @_; - foreach my $ned (qw/NAME EMAIL DATE/) { - foreach my $ac (qw/AUTHOR COMMITTER/) { - my $k = "GIT_${ac}_${ned}"; - if (defined $env->{$k}) { - $ENV{$k} = $env->{$k}; - } else { - delete $ENV{$k}; - } - } - } -} - -sub gc { - command_noisy('gc', '--auto'); -}; - -sub do_git_commit { - my ($self, $log_entry) = @_; - my $lr = $self->last_rev; - if (defined $lr && $lr >= $log_entry->{revision}) { - die "Last fetched revision of ", $self->refname, - " was r$lr, but we are about to fetch: ", - "r$log_entry->{revision}!\n"; - } - if (my $c = $self->rev_map_get($log_entry->{revision})) { - croak "$log_entry->{revision} = $c already exists! ", - "Why are we refetching it?\n"; - } - my $old_env = set_commit_header_env($log_entry); - my $tree = $log_entry->{tree}; - if (!defined $tree) { - $tree = $self->tmp_index_do(sub { - command_oneline('write-tree') }); - } - die "Tree is not a valid sha1: $tree\n" if $tree !~ /^$::sha1$/o; - - my @exec = ('git', 'commit-tree', $tree); - foreach ($self->get_commit_parents($log_entry)) { - push @exec, '-p', $_; - } - defined(my $pid = open3(my $msg_fh, my $out_fh, '>&STDERR', @exec)) - or croak $!; - binmode $msg_fh; - - # we always get UTF-8 from SVN, but we may want our commits in - # a different encoding. - if (my $enc = Git::config('i18n.commitencoding')) { - require Encode; - Encode::from_to($log_entry->{log}, 'UTF-8', $enc); - } - print $msg_fh $log_entry->{log} or croak $!; - restore_commit_header_env($old_env); - unless ($self->no_metadata) { - print $msg_fh "\ngit-svn-id: $log_entry->{metadata}\n" - or croak $!; - } - $msg_fh->flush == 0 or croak $!; - close $msg_fh or croak $!; - chomp(my $commit = do { local $/; <$out_fh> }); - close $out_fh or croak $!; - waitpid $pid, 0; - croak $? if $?; - if ($commit !~ /^$::sha1$/o) { - die "Failed to commit, invalid sha1: $commit\n"; - } - - $self->rev_map_set($log_entry->{revision}, $commit, 1); - - $self->{last_rev} = $log_entry->{revision}; - $self->{last_commit} = $commit; - print "r$log_entry->{revision}" unless $::_q > 1; - if (defined $log_entry->{svm_revision}) { - print " (\@$log_entry->{svm_revision})" unless $::_q > 1; - $self->rev_map_set($log_entry->{svm_revision}, $commit, - 0, $self->svm_uuid); - } - print " = $commit ($self->{ref_id})\n" unless $::_q > 1; - if (--$_gc_nr == 0) { - $_gc_nr = $_gc_period; - gc(); - } - return $commit; -} - -sub match_paths { - my ($self, $paths, $r) = @_; - return 1 if $self->{path} eq ''; - if (my $path = $paths->{"/$self->{path}"}) { - return ($path->{action} eq 'D') ? 0 : 1; - } - $self->{path_regex} ||= qr/^\/\Q$self->{path}\E\//; - if (grep /$self->{path_regex}/, keys %$paths) { - return 1; - } - my $c = ''; - foreach (split m#/#, $self->{path}) { - $c .= "/$_"; - next unless ($paths->{$c} && - ($paths->{$c}->{action} =~ /^[AR]$/)); - if ($self->ra->check_path($self->{path}, $r) == - $SVN::Node::dir) { - return 1; - } - } - return 0; -} - -sub find_parent_branch { - my ($self, $paths, $rev) = @_; - return undef unless $self->follow_parent; - unless (defined $paths) { - my $err_handler = $SVN::Error::handler; - $SVN::Error::handler = \&Git::SVN::Ra::skip_unknown_revs; - $self->ra->get_log([$self->{path}], $rev, $rev, 0, 1, 1, - sub { $paths = $_[0] }); - $SVN::Error::handler = $err_handler; - } - return undef unless defined $paths; - - # look for a parent from another branch: - my @b_path_components = split m#/#, $self->{path}; - my @a_path_components; - my $i; - while (@b_path_components) { - $i = $paths->{'/'.join('/', @b_path_components)}; - last if $i && defined $i->{copyfrom_path}; - unshift(@a_path_components, pop(@b_path_components)); - } - return undef unless defined $i && defined $i->{copyfrom_path}; - my $branch_from = $i->{copyfrom_path}; - if (@a_path_components) { - print STDERR "branch_from: $branch_from => "; - $branch_from .= '/'.join('/', @a_path_components); - print STDERR $branch_from, "\n"; - } - my $r = $i->{copyfrom_rev}; - my $repos_root = $self->ra->{repos_root}; - my $url = $self->ra->{url}; - my $new_url = $url . $branch_from; - print STDERR "Found possible branch point: ", - "$new_url => ", $self->full_url, ", $r\n" - unless $::_q > 1; - $branch_from =~ s#^/##; - my $gs = $self->other_gs($new_url, $url, - $branch_from, $r, $self->{ref_id}); - my ($r0, $parent) = $gs->find_rev_before($r, 1); - { - my ($base, $head); - if (!defined $r0 || !defined $parent) { - ($base, $head) = parse_revision_argument(0, $r); - } else { - if ($r0 < $r) { - $gs->ra->get_log([$gs->{path}], $r0 + 1, $r, 1, - 0, 1, sub { $base = $_[1] - 1 }); - } - } - if (defined $base && $base <= $r) { - $gs->fetch($base, $r); - } - ($r0, $parent) = $gs->find_rev_before($r, 1); - } - if (defined $r0 && defined $parent) { - print STDERR "Found branch parent: ($self->{ref_id}) $parent\n" - unless $::_q > 1; - my $ed; - if ($self->ra->can_do_switch) { - $self->assert_index_clean($parent); - print STDERR "Following parent with do_switch\n" - unless $::_q > 1; - # do_switch works with svn/trunk >= r22312, but that - # is not included with SVN 1.4.3 (the latest version - # at the moment), so we can't rely on it - $self->{last_rev} = $r0; - $self->{last_commit} = $parent; - $ed = SVN::Git::Fetcher->new($self, $gs->{path}); - $gs->ra->gs_do_switch($r0, $rev, $gs, - $self->full_url, $ed) - or die "SVN connection failed somewhere...\n"; - } elsif ($self->ra->trees_match($new_url, $r0, - $self->full_url, $rev)) { - print STDERR "Trees match:\n", - " $new_url\@$r0\n", - " ${\$self->full_url}\@$rev\n", - "Following parent with no changes\n" - unless $::_q > 1; - $self->tmp_index_do(sub { - command_noisy('read-tree', $parent); - }); - $self->{last_commit} = $parent; - } else { - print STDERR "Following parent with do_update\n" - unless $::_q > 1; - $ed = SVN::Git::Fetcher->new($self); - $self->ra->gs_do_update($rev, $rev, $self, $ed) - or die "SVN connection failed somewhere...\n"; - } - print STDERR "Successfully followed parent\n" unless $::_q > 1; - return $self->make_log_entry($rev, [$parent], $ed); - } - return undef; -} - -sub do_fetch { - my ($self, $paths, $rev) = @_; - my $ed; - my ($last_rev, @parents); - if (my $lc = $self->last_commit) { - # we can have a branch that was deleted, then re-added - # under the same name but copied from another path, in - # which case we'll have multiple parents (we don't - # want to break the original ref, nor lose copypath info): - if (my $log_entry = $self->find_parent_branch($paths, $rev)) { - push @{$log_entry->{parents}}, $lc; - return $log_entry; - } - $ed = SVN::Git::Fetcher->new($self); - $last_rev = $self->{last_rev}; - $ed->{c} = $lc; - @parents = ($lc); - } else { - $last_rev = $rev; - if (my $log_entry = $self->find_parent_branch($paths, $rev)) { - return $log_entry; - } - $ed = SVN::Git::Fetcher->new($self); - } - unless ($self->ra->gs_do_update($last_rev, $rev, $self, $ed)) { - die "SVN connection failed somewhere...\n"; - } - $self->make_log_entry($rev, \@parents, $ed); -} - -sub mkemptydirs { - my ($self, $r) = @_; - - sub scan { - my ($r, $empty_dirs, $line) = @_; - if (defined $r && $line =~ /^r(\d+)$/) { - return 0 if $1 > $r; - } elsif ($line =~ /^ \+empty_dir: (.+)$/) { - $empty_dirs->{$1} = 1; - } elsif ($line =~ /^ \-empty_dir: (.+)$/) { - my @d = grep {m[^\Q$1\E(/|$)]} (keys %$empty_dirs); - delete @$empty_dirs{@d}; - } - 1; # continue - }; - - my %empty_dirs = (); - my $gz_file = "$self->{dir}/unhandled.log.gz"; - if (-f $gz_file) { - if (!$can_compress) { - warn "Compress::Zlib could not be found; ", - "empty directories in $gz_file will not be read\n"; - } else { - my $gz = Compress::Zlib::gzopen($gz_file, "rb") or - die "Unable to open $gz_file: $!\n"; - my $line; - while ($gz->gzreadline($line) > 0) { - scan($r, \%empty_dirs, $line) or last; - } - $gz->gzclose; - } - } - - if (open my $fh, '<', "$self->{dir}/unhandled.log") { - binmode $fh or croak "binmode: $!"; - while (<$fh>) { - scan($r, \%empty_dirs, $_) or last; - } - close $fh; - } - - my $strip = qr/\A\Q$self->{path}\E(?:\/|$)/; - foreach my $d (sort keys %empty_dirs) { - $d = uri_decode($d); - $d =~ s/$strip//; - next unless length($d); - next if -d $d; - if (-e $d) { - warn "$d exists but is not a directory\n"; - } else { - print "creating empty directory: $d\n"; - mkpath([$d]); - } - } -} - -sub get_untracked { - my ($self, $ed) = @_; - my @out; - my $h = $ed->{empty}; - foreach (sort keys %$h) { - my $act = $h->{$_} ? '+empty_dir' : '-empty_dir'; - push @out, " $act: " . uri_encode($_); - warn "W: $act: $_\n"; - } - foreach my $t (qw/dir_prop file_prop/) { - $h = $ed->{$t} or next; - foreach my $path (sort keys %$h) { - my $ppath = $path eq '' ? '.' : $path; - foreach my $prop (sort keys %{$h->{$path}}) { - next if $SKIP_PROP{$prop}; - my $v = $h->{$path}->{$prop}; - my $t_ppath_prop = "$t: " . - uri_encode($ppath) . ' ' . - uri_encode($prop); - if (defined $v) { - push @out, " +$t_ppath_prop " . - uri_encode($v); - } else { - push @out, " -$t_ppath_prop"; - } - } - } - } - foreach my $t (qw/absent_file absent_directory/) { - $h = $ed->{$t} or next; - foreach my $parent (sort keys %$h) { - foreach my $path (sort @{$h->{$parent}}) { - push @out, " $t: " . - uri_encode("$parent/$path"); - warn "W: $t: $parent/$path ", - "Insufficient permissions?\n"; - } - } - } - \@out; -} - -sub get_tz { - # some systmes don't handle or mishandle %z, so be creative. - my $t = shift || time; - my $gm = timelocal(gmtime($t)); - my $sign = qw( + + - )[ $t <=> $gm ]; - return sprintf("%s%02d%02d", $sign, (gmtime(abs($t - $gm)))[2,1]); -} - -# parse_svn_date(DATE) -# -------------------- -# Given a date (in UTC) from Subversion, return a string in the format -# "<TZ Offset> <local date/time>" that Git will use. -# -# By default the parsed date will be in UTC; if $Git::SVN::_localtime -# is true we'll convert it to the local timezone instead. -sub parse_svn_date { - my $date = shift || return '+0000 1970-01-01 00:00:00'; - my ($Y,$m,$d,$H,$M,$S) = ($date =~ /^(\d{4})\-(\d\d)\-(\d\d)T - (\d\d)\:(\d\d)\:(\d\d)\.\d*Z$/x) or - croak "Unable to parse date: $date\n"; - my $parsed_date; # Set next. - - if ($Git::SVN::_localtime) { - # Translate the Subversion datetime to an epoch time. - # Begin by switching ourselves to $date's timezone, UTC. - my $old_env_TZ = $ENV{TZ}; - $ENV{TZ} = 'UTC'; - - my $epoch_in_UTC = - POSIX::strftime('%s', $S, $M, $H, $d, $m - 1, $Y - 1900); - - # Determine our local timezone (including DST) at the - # time of $epoch_in_UTC. $Git::SVN::Log::TZ stored the - # value of TZ, if any, at the time we were run. - if (defined $Git::SVN::Log::TZ) { - $ENV{TZ} = $Git::SVN::Log::TZ; - } else { - delete $ENV{TZ}; - } - - my $our_TZ = get_tz(); - - # This converts $epoch_in_UTC into our local timezone. - my ($sec, $min, $hour, $mday, $mon, $year, - $wday, $yday, $isdst) = localtime($epoch_in_UTC); - - $parsed_date = sprintf('%s %04d-%02d-%02d %02d:%02d:%02d', - $our_TZ, $year + 1900, $mon + 1, - $mday, $hour, $min, $sec); - - # Reset us to the timezone in effect when we entered - # this routine. - if (defined $old_env_TZ) { - $ENV{TZ} = $old_env_TZ; - } else { - delete $ENV{TZ}; - } - } else { - $parsed_date = "+0000 $Y-$m-$d $H:$M:$S"; - } - - return $parsed_date; -} - -sub other_gs { - my ($self, $new_url, $url, - $branch_from, $r, $old_ref_id) = @_; - my $gs = Git::SVN->find_by_url($new_url, $url, $branch_from); - unless ($gs) { - my $ref_id = $old_ref_id; - $ref_id =~ s/\@\d+-*$//; - $ref_id .= "\@$r"; - # just grow a tail if we're not unique enough :x - $ref_id .= '-' while find_ref($ref_id); - my ($u, $p, $repo_id) = ($new_url, '', $ref_id); - if ($u =~ s#^\Q$url\E(/|$)##) { - $p = $u; - $u = $url; - $repo_id = $self->{repo_id}; - } - while (1) { - # It is possible to tag two different subdirectories at - # the same revision. If the url for an existing ref - # does not match, we must either find a ref with a - # matching url or create a new ref by growing a tail. - $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1); - my (undef, $max_commit) = $gs->rev_map_max(1); - last if (!$max_commit); - my ($url) = ::cmt_metadata($max_commit); - last if ($url eq $gs->metadata_url); - $ref_id .= '-'; - } - print STDERR "Initializing parent: $ref_id\n" unless $::_q > 1; - } - $gs -} - -sub call_authors_prog { - my ($orig_author) = @_; - $orig_author = command_oneline('rev-parse', '--sq-quote', $orig_author); - my $author = `$::_authors_prog $orig_author`; - if ($? != 0) { - die "$::_authors_prog failed with exit code $?\n" - } - if ($author =~ /^\s*(.+?)\s*<(.*)>\s*$/) { - my ($name, $email) = ($1, $2); - $email = undef if length $2 == 0; - return [$name, $email]; - } else { - die "Author: $orig_author: $::_authors_prog returned " - . "invalid author format: $author\n"; - } -} - -sub check_author { - my ($author) = @_; - if (!defined $author || length $author == 0) { - $author = '(no author)'; - } - if (!defined $::users{$author}) { - if (defined $::_authors_prog) { - $::users{$author} = call_authors_prog($author); - } elsif (defined $::_authors) { - die "Author: $author not defined in $::_authors file\n"; - } - } - $author; -} - -sub find_extra_svk_parents { - my ($self, $ed, $tickets, $parents) = @_; - # aha! svk:merge property changed... - my @tickets = split "\n", $tickets; - my @known_parents; - for my $ticket ( @tickets ) { - my ($uuid, $path, $rev) = split /:/, $ticket; - if ( $uuid eq $self->ra_uuid ) { - my $url = $self->{url}; - my $repos_root = $url; - my $branch_from = $path; - $branch_from =~ s{^/}{}; - my $gs = $self->other_gs($repos_root."/".$branch_from, - $url, - $branch_from, - $rev, - $self->{ref_id}); - if ( my $commit = $gs->rev_map_get($rev, $uuid) ) { - # wahey! we found it, but it might be - # an old one (!) - push @known_parents, [ $rev, $commit ]; - } - } - } - # Ordering matters; highest-numbered commit merge tickets - # first, as they may account for later merge ticket additions - # or changes. - @known_parents = map {$_->[1]} sort {$b->[0] <=> $a->[0]} @known_parents; - for my $parent ( @known_parents ) { - my @cmd = ('rev-list', $parent, map { "^$_" } @$parents ); - my ($msg_fh, $ctx) = command_output_pipe(@cmd); - my $new; - while ( <$msg_fh> ) { - $new=1;last; - } - command_close_pipe($msg_fh, $ctx); - if ( $new ) { - print STDERR - "Found merge parent (svk:merge ticket): $parent\n"; - push @$parents, $parent; - } - } -} - -sub lookup_svn_merge { - my $uuid = shift; - my $url = shift; - my $merge = shift; - - my ($source, $revs) = split ":", $merge; - my $path = $source; - $path =~ s{^/}{}; - my $gs = Git::SVN->find_by_url($url.$source, $url, $path); - if ( !$gs ) { - warn "Couldn't find revmap for $url$source\n"; - return; - } - my @ranges = split ",", $revs; - my ($tip, $tip_commit); - my @merged_commit_ranges; - # find the tip - for my $range ( @ranges ) { - my ($bottom, $top) = split "-", $range; - $top ||= $bottom; - my $bottom_commit = $gs->find_rev_after( $bottom, 1, $top ); - my $top_commit = $gs->find_rev_before( $top, 1, $bottom ); - - unless ($top_commit and $bottom_commit) { - warn "W:unknown path/rev in svn:mergeinfo " - ."dirprop: $source:$range\n"; - next; - } - - if (scalar(command('rev-parse', "$bottom_commit^@"))) { - push @merged_commit_ranges, - "$bottom_commit^..$top_commit"; - } else { - push @merged_commit_ranges, "$top_commit"; - } - - if ( !defined $tip or $top > $tip ) { - $tip = $top; - $tip_commit = $top_commit; - } - } - return ($tip_commit, @merged_commit_ranges); -} - -sub _rev_list { - my ($msg_fh, $ctx) = command_output_pipe( - "rev-list", @_, - ); - my @rv; - while ( <$msg_fh> ) { - chomp; - push @rv, $_; - } - command_close_pipe($msg_fh, $ctx); - @rv; -} - -sub check_cherry_pick { - my $base = shift; - my $tip = shift; - my $parents = shift; - my @ranges = @_; - my %commits = map { $_ => 1 } - _rev_list("--no-merges", $tip, "--not", $base, @$parents, "--"); - for my $range ( @ranges ) { - delete @commits{_rev_list($range, "--")}; - } - for my $commit (keys %commits) { - if (has_no_changes($commit)) { - delete $commits{$commit}; - } - } - return (keys %commits); -} - -sub has_no_changes { - my $commit = shift; - - my @revs = split / /, command_oneline( - qw(rev-list --parents -1 -m), $commit); - - # Commits with no parents, e.g. the start of a partial branch, - # have changes by definition. - return 1 if (@revs < 2); - - # Commits with multiple parents, e.g a merge, have no changes - # by definition. - return 0 if (@revs > 2); - - return (command_oneline("rev-parse", "$commit^{tree}") eq - command_oneline("rev-parse", "$commit~1^{tree}")); -} - -# The GIT_DIR environment variable is not always set until after the command -# line arguments are processed, so we can't memoize in a BEGIN block. -{ - my $memoized = 0; - - sub memoize_svn_mergeinfo_functions { - return if $memoized; - $memoized = 1; - - my $cache_path = "$ENV{GIT_DIR}/svn/.caches/"; - mkpath([$cache_path]) unless -d $cache_path; - - tie my %lookup_svn_merge_cache => 'Memoize::Storable', - "$cache_path/lookup_svn_merge.db", 'nstore'; - memoize 'lookup_svn_merge', - SCALAR_CACHE => 'FAULT', - LIST_CACHE => ['HASH' => \%lookup_svn_merge_cache], - ; - - tie my %check_cherry_pick_cache => 'Memoize::Storable', - "$cache_path/check_cherry_pick.db", 'nstore'; - memoize 'check_cherry_pick', - SCALAR_CACHE => 'FAULT', - LIST_CACHE => ['HASH' => \%check_cherry_pick_cache], - ; - - tie my %has_no_changes_cache => 'Memoize::Storable', - "$cache_path/has_no_changes.db", 'nstore'; - memoize 'has_no_changes', - SCALAR_CACHE => ['HASH' => \%has_no_changes_cache], - LIST_CACHE => 'FAULT', - ; - } - - sub unmemoize_svn_mergeinfo_functions { - return if not $memoized; - $memoized = 0; - - Memoize::unmemoize 'lookup_svn_merge'; - Memoize::unmemoize 'check_cherry_pick'; - Memoize::unmemoize 'has_no_changes'; - } - - Memoize::memoize 'Git::SVN::repos_root'; -} - -END { - # Force cache writeout explicitly instead of waiting for - # global destruction to avoid segfault in Storable: - # http://rt.cpan.org/Public/Bug/Display.html?id=36087 - unmemoize_svn_mergeinfo_functions(); -} - -sub parents_exclude { - my $parents = shift; - my @commits = @_; - return unless @commits; - - my @excluded; - my $excluded; - do { - my @cmd = ('rev-list', "-1", @commits, "--not", @$parents ); - $excluded = command_oneline(@cmd); - if ( $excluded ) { - my @new; - my $found; - for my $commit ( @commits ) { - if ( $commit eq $excluded ) { - push @excluded, $commit; - $found++; - last; - } - else { - push @new, $commit; - } - } - die "saw commit '$excluded' in rev-list output, " - ."but we didn't ask for that commit (wanted: @commits --not @$parents)" - unless $found; - @commits = @new; - } - } - while ($excluded and @commits); - - return @excluded; -} - - -# note: this function should only be called if the various dirprops -# have actually changed -sub find_extra_svn_parents { - my ($self, $ed, $mergeinfo, $parents) = @_; - # aha! svk:merge property changed... - - memoize_svn_mergeinfo_functions(); - - # We first search for merged tips which are not in our - # history. Then, we figure out which git revisions are in - # that tip, but not this revision. If all of those revisions - # are now marked as merge, we can add the tip as a parent. - my @merges = split "\n", $mergeinfo; - my @merge_tips; - my $url = $self->{url}; - my $uuid = $self->ra_uuid; - my %ranges; - for my $merge ( @merges ) { - my ($tip_commit, @ranges) = - lookup_svn_merge( $uuid, $url, $merge ); - unless (!$tip_commit or - grep { $_ eq $tip_commit } @$parents ) { - push @merge_tips, $tip_commit; - $ranges{$tip_commit} = \@ranges; - } else { - push @merge_tips, undef; - } - } - - my %excluded = map { $_ => 1 } - parents_exclude($parents, grep { defined } @merge_tips); - - # check merge tips for new parents - my @new_parents; - for my $merge_tip ( @merge_tips ) { - my $spec = shift @merges; - next unless $merge_tip and $excluded{$merge_tip}; - - my $ranges = $ranges{$merge_tip}; - - # check out 'new' tips - my $merge_base; - eval { - $merge_base = command_oneline( - "merge-base", - @$parents, $merge_tip, - ); - }; - if ($@) { - die "An error occurred during merge-base" - unless $@->isa("Git::Error::Command"); - - warn "W: Cannot find common ancestor between ". - "@$parents and $merge_tip. Ignoring merge info.\n"; - next; - } - - # double check that there are no missing non-merge commits - my (@incomplete) = check_cherry_pick( - $merge_base, $merge_tip, - $parents, - @$ranges, - ); - - if ( @incomplete ) { - warn "W:svn cherry-pick ignored ($spec) - missing " - .@incomplete." commit(s) (eg $incomplete[0])\n"; - } else { - warn - "Found merge parent (svn:mergeinfo prop): ", - $merge_tip, "\n"; - push @new_parents, $merge_tip; - } - } - - # cater for merges which merge commits from multiple branches - if ( @new_parents > 1 ) { - for ( my $i = 0; $i <= $#new_parents; $i++ ) { - for ( my $j = 0; $j <= $#new_parents; $j++ ) { - next if $i == $j; - next unless $new_parents[$i]; - next unless $new_parents[$j]; - my $revs = command_oneline( - "rev-list", "-1", - "$new_parents[$i]..$new_parents[$j]", - ); - if ( !$revs ) { - undef($new_parents[$j]); - } - } - } - } - push @$parents, grep { defined } @new_parents; -} - -sub make_log_entry { - my ($self, $rev, $parents, $ed) = @_; - my $untracked = $self->get_untracked($ed); - - my @parents = @$parents; - my $ps = $ed->{path_strip} || ""; - for my $path ( grep { m/$ps/ } %{$ed->{dir_prop}} ) { - my $props = $ed->{dir_prop}{$path}; - if ( $props->{"svk:merge"} ) { - $self->find_extra_svk_parents - ($ed, $props->{"svk:merge"}, \@parents); - } - if ( $props->{"svn:mergeinfo"} ) { - $self->find_extra_svn_parents - ($ed, - $props->{"svn:mergeinfo"}, - \@parents); - } - } - - open my $un, '>>', "$self->{dir}/unhandled.log" or croak $!; - print $un "r$rev\n" or croak $!; - print $un $_, "\n" foreach @$untracked; - my %log_entry = ( parents => \@parents, revision => $rev, - log => ''); - - my $headrev; - my $logged = delete $self->{logged_rev_props}; - if (!$logged || $self->{-want_revprops}) { - my $rp = $self->ra->rev_proplist($rev); - foreach (sort keys %$rp) { - my $v = $rp->{$_}; - if (/^svn:(author|date|log)$/) { - $log_entry{$1} = $v; - } elsif ($_ eq 'svm:headrev') { - $headrev = $v; - } else { - print $un " rev_prop: ", uri_encode($_), ' ', - uri_encode($v), "\n"; - } - } - } else { - map { $log_entry{$_} = $logged->{$_} } keys %$logged; - } - close $un or croak $!; - - $log_entry{date} = parse_svn_date($log_entry{date}); - $log_entry{log} .= "\n"; - my $author = $log_entry{author} = check_author($log_entry{author}); - my ($name, $email) = defined $::users{$author} ? @{$::users{$author}} - : ($author, undef); - - my ($commit_name, $commit_email) = ($name, $email); - if ($_use_log_author) { - my $name_field; - if ($log_entry{log} =~ /From:\s+(.*\S)\s*\n/i) { - $name_field = $1; - } elsif ($log_entry{log} =~ /Signed-off-by:\s+(.*\S)\s*\n/i) { - $name_field = $1; - } - if (!defined $name_field) { - if (!defined $email) { - $email = $name; - } - } elsif ($name_field =~ /(.*?)\s+<(.*)>/) { - ($name, $email) = ($1, $2); - } elsif ($name_field =~ /(.*)@/) { - ($name, $email) = ($1, $name_field); - } else { - ($name, $email) = ($name_field, $name_field); - } - } - if (defined $headrev && $self->use_svm_props) { - if ($self->rewrite_root) { - die "Can't have both 'useSvmProps' and 'rewriteRoot' ", - "options set!\n"; - } - if ($self->rewrite_uuid) { - die "Can't have both 'useSvmProps' and 'rewriteUUID' ", - "options set!\n"; - } - my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$}i; - # we don't want "SVM: initializing mirror for junk" ... - return undef if $r == 0; - my $svm = $self->svm; - if ($uuid ne $svm->{uuid}) { - die "UUID mismatch on SVM path:\n", - "expected: $svm->{uuid}\n", - " got: $uuid\n"; - } - my $full_url = $self->full_url; - $full_url =~ s#^\Q$svm->{replace}\E(/|$)#$svm->{source}$1# or - die "Failed to replace '$svm->{replace}' with ", - "'$svm->{source}' in $full_url\n"; - # throw away username for storing in records - remove_username($full_url); - $log_entry{metadata} = "$full_url\@$r $uuid"; - $log_entry{svm_revision} = $r; - $email ||= "$author\@$uuid"; - $commit_email ||= "$author\@$uuid"; - } elsif ($self->use_svnsync_props) { - my $full_url = $self->svnsync->{url}; - $full_url .= "/$self->{path}" if length $self->{path}; - remove_username($full_url); - my $uuid = $self->svnsync->{uuid}; - $log_entry{metadata} = "$full_url\@$rev $uuid"; - $email ||= "$author\@$uuid"; - $commit_email ||= "$author\@$uuid"; - } else { - my $url = $self->metadata_url; - remove_username($url); - my $uuid = $self->rewrite_uuid || $self->ra->get_uuid; - $log_entry{metadata} = "$url\@$rev " . $uuid; - $email ||= "$author\@" . $uuid; - $commit_email ||= "$author\@" . $uuid; - } - $log_entry{name} = $name; - $log_entry{email} = $email; - $log_entry{commit_name} = $commit_name; - $log_entry{commit_email} = $commit_email; - \%log_entry; -} - -sub fetch { - my ($self, $min_rev, $max_rev, @parents) = @_; - my ($last_rev, $last_commit) = $self->last_rev_commit; - my ($base, $head) = $self->get_fetch_range($min_rev, $max_rev); - $self->ra->gs_fetch_loop_common($base, $head, [$self]); -} - -sub set_tree_cb { - my ($self, $log_entry, $tree, $rev, $date, $author) = @_; - $self->{inject_parents} = { $rev => $tree }; - $self->fetch(undef, undef); -} - -sub set_tree { - my ($self, $tree) = (shift, shift); - my $log_entry = ::get_commit_entry($tree); - unless ($self->{last_rev}) { - ::fatal("Must have an existing revision to commit"); - } - my %ed_opts = ( r => $self->{last_rev}, - log => $log_entry->{log}, - ra => $self->ra, - tree_a => $self->{last_commit}, - tree_b => $tree, - editor_cb => sub { - $self->set_tree_cb($log_entry, $tree, @_) }, - svn_path => $self->{path} ); - if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) { - print "No changes\nr$self->{last_rev} = $tree\n"; - } -} - -sub rebuild_from_rev_db { - my ($self, $path) = @_; - my $r = -1; - open my $fh, '<', $path or croak "open: $!"; - binmode $fh or croak "binmode: $!"; - while (<$fh>) { - length($_) == 41 or croak "inconsistent size in ($_) != 41"; - chomp($_); - ++$r; - next if $_ eq ('0' x 40); - $self->rev_map_set($r, $_); - print "r$r = $_\n"; - } - close $fh or croak "close: $!"; - unlink $path or croak "unlink: $!"; -} - -sub rebuild { - my ($self) = @_; - my $map_path = $self->map_path; - my $partial = (-e $map_path && ! -z $map_path); - return unless ::verify_ref($self->refname.'^0'); - if (!$partial && ($self->use_svm_props || $self->no_metadata)) { - my $rev_db = $self->rev_db_path; - $self->rebuild_from_rev_db($rev_db); - if ($self->use_svm_props) { - my $svm_rev_db = $self->rev_db_path($self->svm_uuid); - $self->rebuild_from_rev_db($svm_rev_db); - } - $self->unlink_rev_db_symlink; - return; - } - print "Rebuilding $map_path ...\n" if (!$partial); - my ($base_rev, $head) = ($partial ? $self->rev_map_max_norebuild(1) : - (undef, undef)); - my ($log, $ctx) = - command_output_pipe(qw/rev-list --pretty=raw --reverse/, - ($head ? "$head.." : "") . $self->refname, - '--'); - my $metadata_url = $self->metadata_url; - remove_username($metadata_url); - my $svn_uuid = $self->rewrite_uuid || $self->ra_uuid; - my $c; - while (<$log>) { - if ( m{^commit ($::sha1)$} ) { - $c = $1; - next; - } - next unless s{^\s*(git-svn-id:)}{$1}; - my ($url, $rev, $uuid) = ::extract_metadata($_); - remove_username($url); - - # ignore merges (from set-tree) - next if (!defined $rev || !$uuid); - - # if we merged or otherwise started elsewhere, this is - # how we break out of it - if (($uuid ne $svn_uuid) || - ($metadata_url && $url && ($url ne $metadata_url))) { - next; - } - if ($partial && $head) { - print "Partial-rebuilding $map_path ...\n"; - print "Currently at $base_rev = $head\n"; - $head = undef; - } - - $self->rev_map_set($rev, $c); - print "r$rev = $c\n"; - } - command_close_pipe($log, $ctx); - print "Done rebuilding $map_path\n" if (!$partial || !$head); - my $rev_db_path = $self->rev_db_path; - if (-f $self->rev_db_path) { - unlink $self->rev_db_path or croak "unlink: $!"; - } - $self->unlink_rev_db_symlink; -} - -# rev_map: -# Tie::File seems to be prone to offset errors if revisions get sparse, -# it's not that fast, either. Tie::File is also not in Perl 5.6. So -# one of my favorite modules is out :< Next up would be one of the DBM -# modules, but I'm not sure which is most portable... -# -# This is the replacement for the rev_db format, which was too big -# and inefficient for large repositories with a lot of sparse history -# (mainly tags) -# -# The format is this: -# - 24 bytes for every record, -# * 4 bytes for the integer representing an SVN revision number -# * 20 bytes representing the sha1 of a git commit -# - No empty padding records like the old format -# (except the last record, which can be overwritten) -# - new records are written append-only since SVN revision numbers -# increase monotonically -# - lookups on SVN revision number are done via a binary search -# - Piping the file to xxd -c24 is a good way of dumping it for -# viewing or editing (piped back through xxd -r), should the need -# ever arise. -# - The last record can be padding revision with an all-zero sha1 -# This is used to optimize fetch performance when using multiple -# "fetch" directives in .git/config -# -# These files are disposable unless noMetadata or useSvmProps is set - -sub _rev_map_set { - my ($fh, $rev, $commit) = @_; - - binmode $fh or croak "binmode: $!"; - my $size = (stat($fh))[7]; - ($size % 24) == 0 or croak "inconsistent size: $size"; - - my $wr_offset = 0; - if ($size > 0) { - sysseek($fh, -24, SEEK_END) or croak "seek: $!"; - my $read = sysread($fh, my $buf, 24) or croak "read: $!"; - $read == 24 or croak "read only $read bytes (!= 24)"; - my ($last_rev, $last_commit) = unpack(rev_map_fmt, $buf); - if ($last_commit eq ('0' x40)) { - if ($size >= 48) { - sysseek($fh, -48, SEEK_END) or croak "seek: $!"; - $read = sysread($fh, $buf, 24) or - croak "read: $!"; - $read == 24 or - croak "read only $read bytes (!= 24)"; - ($last_rev, $last_commit) = - unpack(rev_map_fmt, $buf); - if ($last_commit eq ('0' x40)) { - croak "inconsistent .rev_map\n"; - } - } - if ($last_rev >= $rev) { - croak "last_rev is higher!: $last_rev >= $rev"; - } - $wr_offset = -24; - } - } - sysseek($fh, $wr_offset, SEEK_END) or croak "seek: $!"; - syswrite($fh, pack(rev_map_fmt, $rev, $commit), 24) == 24 or - croak "write: $!"; -} - -sub _rev_map_reset { - my ($fh, $rev, $commit) = @_; - my $c = _rev_map_get($fh, $rev); - $c eq $commit or die "_rev_map_reset(@_) commit $c does not match!\n"; - my $offset = sysseek($fh, 0, SEEK_CUR) or croak "seek: $!"; - truncate $fh, $offset or croak "truncate: $!"; -} - -sub mkfile { - my ($path) = @_; - unless (-e $path) { - my ($dir, $base) = ($path =~ m#^(.*?)/?([^/]+)$#); - mkpath([$dir]) unless -d $dir; - open my $fh, '>>', $path or die "Couldn't create $path: $!\n"; - close $fh or die "Couldn't close (create) $path: $!\n"; - } -} - -sub rev_map_set { - my ($self, $rev, $commit, $update_ref, $uuid) = @_; - defined $commit or die "missing arg3\n"; - length $commit == 40 or die "arg3 must be a full SHA1 hexsum\n"; - my $db = $self->map_path($uuid); - my $db_lock = "$db.lock"; - my $sig; - $update_ref ||= 0; - if ($update_ref) { - $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} = - $SIG{USR1} = $SIG{USR2} = sub { $sig = $_[0] }; - } - mkfile($db); - - $LOCKFILES{$db_lock} = 1; - my $sync; - # both of these options make our .rev_db file very, very important - # and we can't afford to lose it because rebuild() won't work - if ($self->use_svm_props || $self->no_metadata) { - $sync = 1; - copy($db, $db_lock) or die "rev_map_set(@_): ", - "Failed to copy: ", - "$db => $db_lock ($!)\n"; - } else { - rename $db, $db_lock or die "rev_map_set(@_): ", - "Failed to rename: ", - "$db => $db_lock ($!)\n"; - } - - sysopen(my $fh, $db_lock, O_RDWR | O_CREAT) - or croak "Couldn't open $db_lock: $!\n"; - $update_ref eq 'reset' ? _rev_map_reset($fh, $rev, $commit) : - _rev_map_set($fh, $rev, $commit); - if ($sync) { - $fh->flush or die "Couldn't flush $db_lock: $!\n"; - $fh->sync or die "Couldn't sync $db_lock: $!\n"; - } - close $fh or croak $!; - if ($update_ref) { - $_head = $self; - my $note = ""; - $note = " ($update_ref)" if ($update_ref !~ /^\d*$/); - command_noisy('update-ref', '-m', "r$rev$note", - $self->refname, $commit); - } - rename $db_lock, $db or die "rev_map_set(@_): ", "Failed to rename: ", - "$db_lock => $db ($!)\n"; - delete $LOCKFILES{$db_lock}; - if ($update_ref) { - $SIG{INT} = $SIG{HUP} = $SIG{TERM} = $SIG{ALRM} = $SIG{PIPE} = - $SIG{USR1} = $SIG{USR2} = 'DEFAULT'; - kill $sig, $$ if defined $sig; - } -} - -# If want_commit, this will return an array of (rev, commit) where -# commit _must_ be a valid commit in the archive. -# Otherwise, it'll return the max revision (whether or not the -# commit is valid or just a 0x40 placeholder). -sub rev_map_max { - my ($self, $want_commit) = @_; - $self->rebuild; - my ($r, $c) = $self->rev_map_max_norebuild($want_commit); - $want_commit ? ($r, $c) : $r; -} - -sub rev_map_max_norebuild { - my ($self, $want_commit) = @_; - my $map_path = $self->map_path; - stat $map_path or return $want_commit ? (0, undef) : 0; - sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!"; - binmode $fh or croak "binmode: $!"; - my $size = (stat($fh))[7]; - ($size % 24) == 0 or croak "inconsistent size: $size"; - - if ($size == 0) { - close $fh or croak "close: $!"; - return $want_commit ? (0, undef) : 0; - } - - sysseek($fh, -24, SEEK_END) or croak "seek: $!"; - sysread($fh, my $buf, 24) == 24 or croak "read: $!"; - my ($r, $c) = unpack(rev_map_fmt, $buf); - if ($want_commit && $c eq ('0' x40)) { - if ($size < 48) { - return $want_commit ? (0, undef) : 0; - } - sysseek($fh, -48, SEEK_END) or croak "seek: $!"; - sysread($fh, $buf, 24) == 24 or croak "read: $!"; - ($r, $c) = unpack(rev_map_fmt, $buf); - if ($c eq ('0'x40)) { - croak "Penultimate record is all-zeroes in $map_path"; - } - } - close $fh or croak "close: $!"; - $want_commit ? ($r, $c) : $r; -} - -sub rev_map_get { - my ($self, $rev, $uuid) = @_; - my $map_path = $self->map_path($uuid); - return undef unless -e $map_path; - - sysopen(my $fh, $map_path, O_RDONLY) or croak "open: $!"; - my $c = _rev_map_get($fh, $rev); - close($fh) or croak "close: $!"; - $c -} - -sub _rev_map_get { - my ($fh, $rev) = @_; - - binmode $fh or croak "binmode: $!"; - my $size = (stat($fh))[7]; - ($size % 24) == 0 or croak "inconsistent size: $size"; - - if ($size == 0) { - return undef; - } - - my ($l, $u) = (0, $size - 24); - my ($r, $c, $buf); - - while ($l <= $u) { - my $i = int(($l/24 + $u/24) / 2) * 24; - sysseek($fh, $i, SEEK_SET) or croak "seek: $!"; - sysread($fh, my $buf, 24) == 24 or croak "read: $!"; - my ($r, $c) = unpack(rev_map_fmt, $buf); - - if ($r < $rev) { - $l = $i + 24; - } elsif ($r > $rev) { - $u = $i - 24; - } else { # $r == $rev - return $c eq ('0' x 40) ? undef : $c; - } - } - undef; -} - -# Finds the first svn revision that exists on (if $eq_ok is true) or -# before $rev for the current branch. It will not search any lower -# than $min_rev. Returns the git commit hash and svn revision number -# if found, else (undef, undef). -sub find_rev_before { - my ($self, $rev, $eq_ok, $min_rev) = @_; - --$rev unless $eq_ok; - $min_rev ||= 1; - my $max_rev = $self->rev_map_max; - $rev = $max_rev if ($rev > $max_rev); - while ($rev >= $min_rev) { - if (my $c = $self->rev_map_get($rev)) { - return ($rev, $c); - } - --$rev; - } - return (undef, undef); -} - -# Finds the first svn revision that exists on (if $eq_ok is true) or -# after $rev for the current branch. It will not search any higher -# than $max_rev. Returns the git commit hash and svn revision number -# if found, else (undef, undef). -sub find_rev_after { - my ($self, $rev, $eq_ok, $max_rev) = @_; - ++$rev unless $eq_ok; - $max_rev ||= $self->rev_map_max; - while ($rev <= $max_rev) { - if (my $c = $self->rev_map_get($rev)) { - return ($rev, $c); - } - ++$rev; - } - return (undef, undef); -} - -sub _new { - my ($class, $repo_id, $ref_id, $path) = @_; - unless (defined $repo_id && length $repo_id) { - $repo_id = $Git::SVN::default_repo_id; - } - unless (defined $ref_id && length $ref_id) { - $_prefix = '' unless defined($_prefix); - $_[2] = $ref_id = - "refs/remotes/$_prefix$Git::SVN::default_ref_id"; - } - $_[1] = $repo_id; - my $dir = "$ENV{GIT_DIR}/svn/$ref_id"; - - # Older repos imported by us used $GIT_DIR/svn/foo instead of - # $GIT_DIR/svn/refs/remotes/foo when tracking refs/remotes/foo - if ($ref_id =~ m{^refs/remotes/(.*)}) { - my $old_dir = "$ENV{GIT_DIR}/svn/$1"; - if (-d $old_dir && ! -d $dir) { - $dir = $old_dir; - } - } - - $_[3] = $path = '' unless (defined $path); - mkpath([$dir]); - bless { - ref_id => $ref_id, dir => $dir, index => "$dir/index", - path => $path, config => "$ENV{GIT_DIR}/svn/config", - map_root => "$dir/.rev_map", repo_id => $repo_id }, $class; -} - -# for read-only access of old .rev_db formats -sub unlink_rev_db_symlink { - my ($self) = @_; - my $link = $self->rev_db_path; - $link =~ s/\.[\w-]+$// or croak "missing UUID at the end of $link"; - if (-l $link) { - unlink $link or croak "unlink: $link failed!"; - } -} - -sub rev_db_path { - my ($self, $uuid) = @_; - my $db_path = $self->map_path($uuid); - $db_path =~ s{/\.rev_map\.}{/\.rev_db\.} - or croak "map_path: $db_path does not contain '/.rev_map.' !"; - $db_path; -} - -# the new replacement for .rev_db -sub map_path { - my ($self, $uuid) = @_; - $uuid ||= $self->ra_uuid; - "$self->{map_root}.$uuid"; -} - -sub uri_encode { - my ($f) = @_; - $f =~ s#([^a-zA-Z0-9\*!\:_\./\-])#uc sprintf("%%%02x",ord($1))#eg; - $f -} - -sub uri_decode { - my ($f) = @_; - $f =~ s#%([0-9a-fA-F]{2})#chr(hex($1))#eg; - $f -} - -sub remove_username { - $_[0] =~ s{^([^:]*://)[^@]+@}{$1}; -} - -package Git::SVN::Prompt; -use strict; -use warnings; -require SVN::Core; -use vars qw/$_no_auth_cache $_username/; - -sub simple { - my ($cred, $realm, $default_username, $may_save, $pool) = @_; - $may_save = undef if $_no_auth_cache; - $default_username = $_username if defined $_username; - if (defined $default_username && length $default_username) { - if (defined $realm && length $realm) { - print STDERR "Authentication realm: $realm\n"; - STDERR->flush; - } - $cred->username($default_username); - } else { - username($cred, $realm, $may_save, $pool); - } - $cred->password(_read_password("Password for '" . - $cred->username . "': ", $realm)); - $cred->may_save($may_save); - $SVN::_Core::SVN_NO_ERROR; -} - -sub ssl_server_trust { - my ($cred, $realm, $failures, $cert_info, $may_save, $pool) = @_; - $may_save = undef if $_no_auth_cache; - print STDERR "Error validating server certificate for '$realm':\n"; - { - no warnings 'once'; - # All variables SVN::Auth::SSL::* are used only once, - # so we're shutting up Perl warnings about this. - if ($failures & $SVN::Auth::SSL::UNKNOWNCA) { - print STDERR " - The certificate is not issued ", - "by a trusted authority. Use the\n", - " fingerprint to validate ", - "the certificate manually!\n"; - } - if ($failures & $SVN::Auth::SSL::CNMISMATCH) { - print STDERR " - The certificate hostname ", - "does not match.\n"; - } - if ($failures & $SVN::Auth::SSL::NOTYETVALID) { - print STDERR " - The certificate is not yet valid.\n"; - } - if ($failures & $SVN::Auth::SSL::EXPIRED) { - print STDERR " - The certificate has expired.\n"; - } - if ($failures & $SVN::Auth::SSL::OTHER) { - print STDERR " - The certificate has ", - "an unknown error.\n"; - } - } # no warnings 'once' - printf STDERR - "Certificate information:\n". - " - Hostname: %s\n". - " - Valid: from %s until %s\n". - " - Issuer: %s\n". - " - Fingerprint: %s\n", - map $cert_info->$_, qw(hostname valid_from valid_until - issuer_dname fingerprint); - my $choice; -prompt: - print STDERR $may_save ? - "(R)eject, accept (t)emporarily or accept (p)ermanently? " : - "(R)eject or accept (t)emporarily? "; - STDERR->flush; - $choice = lc(substr(<STDIN> || 'R', 0, 1)); - if ($choice =~ /^t$/i) { - $cred->may_save(undef); - } elsif ($choice =~ /^r$/i) { - return -1; - } elsif ($may_save && $choice =~ /^p$/i) { - $cred->may_save($may_save); - } else { - goto prompt; - } - $cred->accepted_failures($failures); - $SVN::_Core::SVN_NO_ERROR; -} - -sub ssl_client_cert { - my ($cred, $realm, $may_save, $pool) = @_; - $may_save = undef if $_no_auth_cache; - print STDERR "Client certificate filename: "; - STDERR->flush; - chomp(my $filename = <STDIN>); - $cred->cert_file($filename); - $cred->may_save($may_save); - $SVN::_Core::SVN_NO_ERROR; -} - -sub ssl_client_cert_pw { - my ($cred, $realm, $may_save, $pool) = @_; - $may_save = undef if $_no_auth_cache; - $cred->password(_read_password("Password: ", $realm)); - $cred->may_save($may_save); - $SVN::_Core::SVN_NO_ERROR; -} - -sub username { - my ($cred, $realm, $may_save, $pool) = @_; - $may_save = undef if $_no_auth_cache; - if (defined $realm && length $realm) { - print STDERR "Authentication realm: $realm\n"; - } - my $username; - if (defined $_username) { - $username = $_username; - } else { - print STDERR "Username: "; - STDERR->flush; - chomp($username = <STDIN>); - } - $cred->username($username); - $cred->may_save($may_save); - $SVN::_Core::SVN_NO_ERROR; -} - -sub _read_password { - my ($prompt, $realm) = @_; - my $password = ''; - if (exists $ENV{GIT_ASKPASS}) { - open(PH, "-|", $ENV{GIT_ASKPASS}, $prompt); - $password = <PH>; - $password =~ s/[\012\015]//; # \n\r - close(PH); - } else { - print STDERR $prompt; - STDERR->flush; - require Term::ReadKey; - Term::ReadKey::ReadMode('noecho'); - while (defined(my $key = Term::ReadKey::ReadKey(0))) { - last if $key =~ /[\012\015]/; # \n\r - $password .= $key; - } - Term::ReadKey::ReadMode('restore'); - print STDERR "\n"; - STDERR->flush; - } - $password; -} - -package SVN::Git::Fetcher; -use vars qw/@ISA $_ignore_regex $_preserve_empty_dirs $_placeholder_filename - @deleted_gpath %added_placeholder $repo_id/; -use strict; -use warnings; -use Carp qw/croak/; -use File::Basename qw/dirname/; -use IO::File qw//; - -# file baton members: path, mode_a, mode_b, pool, fh, blob, base -sub new { - my ($class, $git_svn, $switch_path) = @_; - my $self = SVN::Delta::Editor->new; - bless $self, $class; - if (exists $git_svn->{last_commit}) { - $self->{c} = $git_svn->{last_commit}; - $self->{empty_symlinks} = - _mark_empty_symlinks($git_svn, $switch_path); - } - - # some options are read globally, but can be overridden locally - # per [svn-remote "..."] section. Command-line options will *NOT* - # override options set in an [svn-remote "..."] section - $repo_id = $git_svn->{repo_id}; - my $k = "svn-remote.$repo_id.ignore-paths"; - my $v = eval { command_oneline('config', '--get', $k) }; - $self->{ignore_regex} = $v; - - $k = "svn-remote.$repo_id.preserve-empty-dirs"; - $v = eval { command_oneline('config', '--get', '--bool', $k) }; - if ($v && $v eq 'true') { - $_preserve_empty_dirs = 1; - $k = "svn-remote.$repo_id.placeholder-filename"; - $v = eval { command_oneline('config', '--get', $k) }; - $_placeholder_filename = $v; - } - - # Load the list of placeholder files added during previous invocations. - $k = "svn-remote.$repo_id.added-placeholder"; - $v = eval { command_oneline('config', '--get-all', $k) }; - if ($_preserve_empty_dirs && $v) { - # command() prints errors to stderr, so we only call it if - # command_oneline() succeeded. - my @v = command('config', '--get-all', $k); - $added_placeholder{ dirname($_) } = $_ foreach @v; - } - - $self->{empty} = {}; - $self->{dir_prop} = {}; - $self->{file_prop} = {}; - $self->{absent_dir} = {}; - $self->{absent_file} = {}; - $self->{gii} = $git_svn->tmp_index_do(sub { Git::IndexInfo->new }); - $self->{pathnameencoding} = Git::config('svn.pathnameencoding'); - $self; -} - -# this uses the Ra object, so it must be called before do_{switch,update}, -# not inside them (when the Git::SVN::Fetcher object is passed) to -# do_{switch,update} -sub _mark_empty_symlinks { - my ($git_svn, $switch_path) = @_; - my $bool = Git::config_bool('svn.brokenSymlinkWorkaround'); - return {} if (!defined($bool)) || (defined($bool) && ! $bool); - - my %ret; - my ($rev, $cmt) = $git_svn->last_rev_commit; - return {} unless ($rev && $cmt); - - # allow the warning to be printed for each revision we fetch to - # ensure the user sees it. The user can also disable the workaround - # on the repository even while git svn is running and the next - # revision fetched will skip this expensive function. - my $printed_warning; - chomp(my $empty_blob = `git hash-object -t blob --stdin < /dev/null`); - my ($ls, $ctx) = command_output_pipe(qw/ls-tree -r -z/, $cmt); - local $/ = "\0"; - my $pfx = defined($switch_path) ? $switch_path : $git_svn->{path}; - $pfx .= '/' if length($pfx); - while (<$ls>) { - chomp; - s/\A100644 blob $empty_blob\t//o or next; - unless ($printed_warning) { - print STDERR "Scanning for empty symlinks, ", - "this may take a while if you have ", - "many empty files\n", - "You may disable this with `", - "git config svn.brokenSymlinkWorkaround ", - "false'.\n", - "This may be done in a different ", - "terminal without restarting ", - "git svn\n"; - $printed_warning = 1; - } - my $path = $_; - my (undef, $props) = - $git_svn->ra->get_file($pfx.$path, $rev, undef); - if ($props->{'svn:special'}) { - $ret{$path} = 1; - } - } - command_close_pipe($ls, $ctx); - \%ret; -} - -# returns true if a given path is inside a ".git" directory -sub in_dot_git { - $_[0] =~ m{(?:^|/)\.git(?:/|$)}; -} - -# return value: 0 -- don't ignore, 1 -- ignore -sub is_path_ignored { - my ($self, $path) = @_; - return 1 if in_dot_git($path); - return 1 if defined($self->{ignore_regex}) && - $path =~ m!$self->{ignore_regex}!; - return 0 unless defined($_ignore_regex); - return 1 if $path =~ m!$_ignore_regex!o; - return 0; -} - -sub set_path_strip { - my ($self, $path) = @_; - $self->{path_strip} = qr/^\Q$path\E(\/|$)/ if length $path; -} - -sub open_root { - { path => '' }; -} - -sub open_directory { - my ($self, $path, $pb, $rev) = @_; - { path => $path }; -} - -sub git_path { - my ($self, $path) = @_; - if (my $enc = $self->{pathnameencoding}) { - require Encode; - Encode::from_to($path, 'UTF-8', $enc); - } - if ($self->{path_strip}) { - $path =~ s!$self->{path_strip}!! or - die "Failed to strip path '$path' ($self->{path_strip})\n"; - } - $path; -} - -sub delete_entry { - my ($self, $path, $rev, $pb) = @_; - return undef if $self->is_path_ignored($path); - - my $gpath = $self->git_path($path); - return undef if ($gpath eq ''); - - # remove entire directories. - my ($tree) = (command('ls-tree', '-z', $self->{c}, "./$gpath") - =~ /\A040000 tree ([a-f\d]{40})\t\Q$gpath\E\0/); - if ($tree) { - my ($ls, $ctx) = command_output_pipe(qw/ls-tree - -r --name-only -z/, - $tree); - local $/ = "\0"; - while (<$ls>) { - chomp; - my $rmpath = "$gpath/$_"; - $self->{gii}->remove($rmpath); - print "\tD\t$rmpath\n" unless $::_q; - } - print "\tD\t$gpath/\n" unless $::_q; - command_close_pipe($ls, $ctx); - } else { - $self->{gii}->remove($gpath); - print "\tD\t$gpath\n" unless $::_q; - } - # Don't add to @deleted_gpath if we're deleting a placeholder file. - push @deleted_gpath, $gpath unless $added_placeholder{dirname($path)}; - $self->{empty}->{$path} = 0; - undef; -} - -sub open_file { - my ($self, $path, $pb, $rev) = @_; - my ($mode, $blob); - - goto out if $self->is_path_ignored($path); - - my $gpath = $self->git_path($path); - ($mode, $blob) = (command('ls-tree', '-z', $self->{c}, "./$gpath") - =~ /\A(\d{6}) blob ([a-f\d]{40})\t\Q$gpath\E\0/); - unless (defined $mode && defined $blob) { - die "$path was not found in commit $self->{c} (r$rev)\n"; - } - if ($mode eq '100644' && $self->{empty_symlinks}->{$path}) { - $mode = '120000'; - } -out: - { path => $path, mode_a => $mode, mode_b => $mode, blob => $blob, - pool => SVN::Pool->new, action => 'M' }; -} - -sub add_file { - my ($self, $path, $pb, $cp_path, $cp_rev) = @_; - my $mode; - - if (!$self->is_path_ignored($path)) { - my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#); - delete $self->{empty}->{$dir}; - $mode = '100644'; - - if ($added_placeholder{$dir}) { - # Remove our placeholder file, if we created one. - delete_entry($self, $added_placeholder{$dir}) - unless $path eq $added_placeholder{$dir}; - delete $added_placeholder{$dir} - } - } - - { path => $path, mode_a => $mode, mode_b => $mode, - pool => SVN::Pool->new, action => 'A' }; -} - -sub add_directory { - my ($self, $path, $cp_path, $cp_rev) = @_; - goto out if $self->is_path_ignored($path); - my $gpath = $self->git_path($path); - if ($gpath eq '') { - my ($ls, $ctx) = command_output_pipe(qw/ls-tree - -r --name-only -z/, - $self->{c}); - local $/ = "\0"; - while (<$ls>) { - chomp; - $self->{gii}->remove($_); - print "\tD\t$_\n" unless $::_q; - push @deleted_gpath, $gpath; - } - command_close_pipe($ls, $ctx); - $self->{empty}->{$path} = 0; - } - my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#); - delete $self->{empty}->{$dir}; - $self->{empty}->{$path} = 1; - - if ($added_placeholder{$dir}) { - # Remove our placeholder file, if we created one. - delete_entry($self, $added_placeholder{$dir}); - delete $added_placeholder{$dir} - } - -out: - { path => $path }; -} - -sub change_dir_prop { - my ($self, $db, $prop, $value) = @_; - return undef if $self->is_path_ignored($db->{path}); - $self->{dir_prop}->{$db->{path}} ||= {}; - $self->{dir_prop}->{$db->{path}}->{$prop} = $value; - undef; -} - -sub absent_directory { - my ($self, $path, $pb) = @_; - return undef if $self->is_path_ignored($path); - $self->{absent_dir}->{$pb->{path}} ||= []; - push @{$self->{absent_dir}->{$pb->{path}}}, $path; - undef; -} - -sub absent_file { - my ($self, $path, $pb) = @_; - return undef if $self->is_path_ignored($path); - $self->{absent_file}->{$pb->{path}} ||= []; - push @{$self->{absent_file}->{$pb->{path}}}, $path; - undef; -} - -sub change_file_prop { - my ($self, $fb, $prop, $value) = @_; - return undef if $self->is_path_ignored($fb->{path}); - if ($prop eq 'svn:executable') { - if ($fb->{mode_b} != 120000) { - $fb->{mode_b} = defined $value ? 100755 : 100644; - } - } elsif ($prop eq 'svn:special') { - $fb->{mode_b} = defined $value ? 120000 : 100644; - } else { - $self->{file_prop}->{$fb->{path}} ||= {}; - $self->{file_prop}->{$fb->{path}}->{$prop} = $value; - } - undef; -} - -sub apply_textdelta { - my ($self, $fb, $exp) = @_; - return undef if $self->is_path_ignored($fb->{path}); - my $fh = $::_repository->temp_acquire('svn_delta'); - # $fh gets auto-closed() by SVN::TxDelta::apply(), - # (but $base does not,) so dup() it for reading in close_file - open my $dup, '<&', $fh or croak $!; - my $base = $::_repository->temp_acquire('git_blob'); - - if ($fb->{blob}) { - my ($base_is_link, $size); - - if ($fb->{mode_a} eq '120000' && - ! $self->{empty_symlinks}->{$fb->{path}}) { - print $base 'link ' or die "print $!\n"; - $base_is_link = 1; - } - retry: - $size = $::_repository->cat_blob($fb->{blob}, $base); - die "Failed to read object $fb->{blob}" if ($size < 0); - - if (defined $exp) { - seek $base, 0, 0 or croak $!; - my $got = ::md5sum($base); - if ($got ne $exp) { - my $err = "Checksum mismatch: ". - "$fb->{path} $fb->{blob}\n" . - "expected: $exp\n" . - " got: $got\n"; - if ($base_is_link) { - warn $err, - "Retrying... (possibly ", - "a bad symlink from SVN)\n"; - $::_repository->temp_reset($base); - $base_is_link = 0; - goto retry; - } - die $err; - } - } - } - seek $base, 0, 0 or croak $!; - $fb->{fh} = $fh; - $fb->{base} = $base; - [ SVN::TxDelta::apply($base, $dup, undef, $fb->{path}, $fb->{pool}) ]; -} - -sub close_file { - my ($self, $fb, $exp) = @_; - return undef if $self->is_path_ignored($fb->{path}); - - my $hash; - my $path = $self->git_path($fb->{path}); - if (my $fh = $fb->{fh}) { - if (defined $exp) { - seek($fh, 0, 0) or croak $!; - my $got = ::md5sum($fh); - if ($got ne $exp) { - die "Checksum mismatch: $path\n", - "expected: $exp\n got: $got\n"; - } - } - if ($fb->{mode_b} == 120000) { - sysseek($fh, 0, 0) or croak $!; - my $rd = sysread($fh, my $buf, 5); - - if (!defined $rd) { - croak "sysread: $!\n"; - } elsif ($rd == 0) { - warn "$path has mode 120000", - " but it points to nothing\n", - "converting to an empty file with mode", - " 100644\n"; - $fb->{mode_b} = '100644'; - } elsif ($buf ne 'link ') { - warn "$path has mode 120000", - " but is not a link\n"; - } else { - my $tmp_fh = $::_repository->temp_acquire( - 'svn_hash'); - my $res; - while ($res = sysread($fh, my $str, 1024)) { - my $out = syswrite($tmp_fh, $str, $res); - defined($out) && $out == $res - or croak("write ", - Git::temp_path($tmp_fh), - ": $!\n"); - } - defined $res or croak $!; - - ($fh, $tmp_fh) = ($tmp_fh, $fh); - Git::temp_release($tmp_fh, 1); - } - } - - $hash = $::_repository->hash_and_insert_object( - Git::temp_path($fh)); - $hash =~ /^[a-f\d]{40}$/ or die "not a sha1: $hash\n"; - - Git::temp_release($fb->{base}, 1); - Git::temp_release($fh, 1); - } else { - $hash = $fb->{blob} or die "no blob information\n"; - } - $fb->{pool}->clear; - $self->{gii}->update($fb->{mode_b}, $hash, $path) or croak $!; - print "\t$fb->{action}\t$path\n" if $fb->{action} && ! $::_q; - undef; -} - -sub abort_edit { - my $self = shift; - $self->{nr} = $self->{gii}->{nr}; - delete $self->{gii}; - $self->SUPER::abort_edit(@_); -} - -sub close_edit { - my $self = shift; - - if ($_preserve_empty_dirs) { - my @empty_dirs; - - # Any entry flagged as empty that also has an associated - # dir_prop represents a newly created empty directory. - foreach my $i (keys %{$self->{empty}}) { - push @empty_dirs, $i if exists $self->{dir_prop}->{$i}; - } - - # Search for directories that have become empty due subsequent - # file deletes. - push @empty_dirs, $self->find_empty_directories(); - - # Finally, add a placeholder file to each empty directory. - $self->add_placeholder_file($_) foreach (@empty_dirs); - - $self->stash_placeholder_list(); - } - - $self->{git_commit_ok} = 1; - $self->{nr} = $self->{gii}->{nr}; - delete $self->{gii}; - $self->SUPER::close_edit(@_); -} - -sub find_empty_directories { - my ($self) = @_; - my @empty_dirs; - my %dirs = map { dirname($_) => 1 } @deleted_gpath; - - foreach my $dir (sort keys %dirs) { - next if $dir eq "."; - - # If there have been any additions to this directory, there is - # no reason to check if it is empty. - my $skip_added = 0; - foreach my $t (qw/dir_prop file_prop/) { - foreach my $path (keys %{ $self->{$t} }) { - if (exists $self->{$t}->{dirname($path)}) { - $skip_added = 1; - last; - } - } - last if $skip_added; - } - next if $skip_added; - - # Use `git ls-tree` to get the filenames of this directory - # that existed prior to this particular commit. - my $ls = command('ls-tree', '-z', '--name-only', - $self->{c}, "$dir/"); - my %files = map { $_ => 1 } split(/\0/, $ls); - - # Remove the filenames that were deleted during this commit. - delete $files{$_} foreach (@deleted_gpath); - - # Report the directory if there are no filenames left. - push @empty_dirs, $dir unless (scalar %files); - } - @empty_dirs; -} - -sub add_placeholder_file { - my ($self, $dir) = @_; - my $path = "$dir/$_placeholder_filename"; - my $gpath = $self->git_path($path); - - my $fh = $::_repository->temp_acquire($gpath); - my $hash = $::_repository->hash_and_insert_object(Git::temp_path($fh)); - Git::temp_release($fh, 1); - $self->{gii}->update('100644', $hash, $gpath) or croak $!; - - # The directory should no longer be considered empty. - delete $self->{empty}->{$dir} if exists $self->{empty}->{$dir}; - - # Keep track of any placeholder files we create. - $added_placeholder{$dir} = $path; -} - -sub stash_placeholder_list { - my ($self) = @_; - my $k = "svn-remote.$repo_id.added-placeholder"; - my $v = eval { command_oneline('config', '--get-all', $k) }; - command_noisy('config', '--unset-all', $k) if $v; - foreach (values %added_placeholder) { - command_noisy('config', '--add', $k, $_); - } -} - -package SVN::Git::Editor; -use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/; -use strict; -use warnings; -use Carp qw/croak/; -use IO::File; - -sub new { - my ($class, $opts) = @_; - foreach (qw/svn_path r ra tree_a tree_b log editor_cb/) { - die "$_ required!\n" unless (defined $opts->{$_}); - } - - my $pool = SVN::Pool->new; - my $mods = generate_diff($opts->{tree_a}, $opts->{tree_b}); - my $types = check_diff_paths($opts->{ra}, $opts->{svn_path}, - $opts->{r}, $mods); - - # $opts->{ra} functions should not be used after this: - my @ce = $opts->{ra}->get_commit_editor($opts->{log}, - $opts->{editor_cb}, $pool); - my $self = SVN::Delta::Editor->new(@ce, $pool); - bless $self, $class; - foreach (qw/svn_path r tree_a tree_b/) { - $self->{$_} = $opts->{$_}; - } - $self->{url} = $opts->{ra}->{url}; - $self->{mods} = $mods; - $self->{types} = $types; - $self->{pool} = $pool; - $self->{bat} = { '' => $self->open_root($self->{r}, $self->{pool}) }; - $self->{rm} = { }; - $self->{path_prefix} = length $self->{svn_path} ? - "$self->{svn_path}/" : ''; - $self->{config} = $opts->{config}; - $self->{mergeinfo} = $opts->{mergeinfo}; - return $self; -} - -sub generate_diff { - my ($tree_a, $tree_b) = @_; - my @diff_tree = qw(diff-tree -z -r); - if ($_cp_similarity) { - push @diff_tree, "-C$_cp_similarity"; - } else { - push @diff_tree, '-C'; - } - push @diff_tree, '--find-copies-harder' if $_find_copies_harder; - push @diff_tree, "-l$_rename_limit" if defined $_rename_limit; - push @diff_tree, $tree_a, $tree_b; - my ($diff_fh, $ctx) = command_output_pipe(@diff_tree); - local $/ = "\0"; - my $state = 'meta'; - my @mods; - while (<$diff_fh>) { - chomp $_; # this gets rid of the trailing "\0" - if ($state eq 'meta' && /^:(\d{6})\s(\d{6})\s - ($::sha1)\s($::sha1)\s - ([MTCRAD])\d*$/xo) { - push @mods, { mode_a => $1, mode_b => $2, - sha1_a => $3, sha1_b => $4, - chg => $5 }; - if ($5 =~ /^(?:C|R)$/) { - $state = 'file_a'; - } else { - $state = 'file_b'; - } - } elsif ($state eq 'file_a') { - my $x = $mods[$#mods] or croak "Empty array\n"; - if ($x->{chg} !~ /^(?:C|R)$/) { - croak "Error parsing $_, $x->{chg}\n"; - } - $x->{file_a} = $_; - $state = 'file_b'; - } elsif ($state eq 'file_b') { - my $x = $mods[$#mods] or croak "Empty array\n"; - if (exists $x->{file_a} && $x->{chg} !~ /^(?:C|R)$/) { - croak "Error parsing $_, $x->{chg}\n"; - } - if (!exists $x->{file_a} && $x->{chg} =~ /^(?:C|R)$/) { - croak "Error parsing $_, $x->{chg}\n"; - } - $x->{file_b} = $_; - $state = 'meta'; - } else { - croak "Error parsing $_\n"; - } - } - command_close_pipe($diff_fh, $ctx); - \@mods; -} - -sub check_diff_paths { - my ($ra, $pfx, $rev, $mods) = @_; - my %types; - $pfx .= '/' if length $pfx; - - sub type_diff_paths { - my ($ra, $types, $path, $rev) = @_; - my @p = split m#/+#, $path; - my $c = shift @p; - unless (defined $types->{$c}) { - $types->{$c} = $ra->check_path($c, $rev); - } - while (@p) { - $c .= '/' . shift @p; - next if defined $types->{$c}; - $types->{$c} = $ra->check_path($c, $rev); - } - } - - foreach my $m (@$mods) { - foreach my $f (qw/file_a file_b/) { - next unless defined $m->{$f}; - my ($dir) = ($m->{$f} =~ m#^(.*?)/?(?:[^/]+)$#); - if (length $pfx.$dir && ! defined $types{$dir}) { - type_diff_paths($ra, \%types, $pfx.$dir, $rev); - } - } - } - \%types; -} - -sub split_path { - return ($_[0] =~ m#^(.*?)/?([^/]+)$#); -} - -sub repo_path { - my ($self, $path) = @_; - if (my $enc = $self->{pathnameencoding}) { - require Encode; - Encode::from_to($path, $enc, 'UTF-8'); - } - $self->{path_prefix}.(defined $path ? $path : ''); -} - -sub url_path { - my ($self, $path) = @_; - if ($self->{url} =~ m#^https?://#) { - $path =~ s!([^~a-zA-Z0-9_./-])!uc sprintf("%%%02x",ord($1))!eg; - } - $self->{url} . '/' . $self->repo_path($path); -} - -sub rmdirs { - my ($self) = @_; - my $rm = $self->{rm}; - delete $rm->{''}; # we never delete the url we're tracking - return unless %$rm; - - foreach (keys %$rm) { - my @d = split m#/#, $_; - my $c = shift @d; - $rm->{$c} = 1; - while (@d) { - $c .= '/' . shift @d; - $rm->{$c} = 1; - } - } - delete $rm->{$self->{svn_path}}; - delete $rm->{''}; # we never delete the url we're tracking - return unless %$rm; - - my ($fh, $ctx) = command_output_pipe(qw/ls-tree --name-only -r -z/, - $self->{tree_b}); - local $/ = "\0"; - while (<$fh>) { - chomp; - my @dn = split m#/#, $_; - while (pop @dn) { - delete $rm->{join '/', @dn}; - } - unless (%$rm) { - close $fh; - return; - } - } - command_close_pipe($fh, $ctx); - - my ($r, $p, $bat) = ($self->{r}, $self->{pool}, $self->{bat}); - foreach my $d (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$rm) { - $self->close_directory($bat->{$d}, $p); - my ($dn) = ($d =~ m#^(.*?)/?(?:[^/]+)$#); - print "\tD+\t$d/\n" unless $::_q; - $self->SUPER::delete_entry($d, $r, $bat->{$dn}, $p); - delete $bat->{$d}; - } -} - -sub open_or_add_dir { - my ($self, $full_path, $baton, $deletions) = @_; - my $t = $self->{types}->{$full_path}; - if (!defined $t) { - die "$full_path not known in r$self->{r} or we have a bug!\n"; - } - { - no warnings 'once'; - # SVN::Node::none and SVN::Node::file are used only once, - # so we're shutting up Perl's warnings about them. - if ($t == $SVN::Node::none || defined($deletions->{$full_path})) { - return $self->add_directory($full_path, $baton, - undef, -1, $self->{pool}); - } elsif ($t == $SVN::Node::dir) { - return $self->open_directory($full_path, $baton, - $self->{r}, $self->{pool}); - } # no warnings 'once' - print STDERR "$full_path already exists in repository at ", - "r$self->{r} and it is not a directory (", - ($t == $SVN::Node::file ? 'file' : 'unknown'),"/$t)\n"; - } # no warnings 'once' - exit 1; -} - -sub ensure_path { - my ($self, $path, $deletions) = @_; - my $bat = $self->{bat}; - my $repo_path = $self->repo_path($path); - return $bat->{''} unless (length $repo_path); - - my @p = split m#/+#, $repo_path; - my $c = shift @p; - $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{''}, $deletions); - while (@p) { - my $c0 = $c; - $c .= '/' . shift @p; - $bat->{$c} ||= $self->open_or_add_dir($c, $bat->{$c0}, $deletions); - } - return $bat->{$c}; -} - -# Subroutine to convert a globbing pattern to a regular expression. -# From perl cookbook. -sub glob2pat { - my $globstr = shift; - my %patmap = ('*' => '.*', '?' => '.', '[' => '[', ']' => ']'); - $globstr =~ s{(.)} { $patmap{$1} || "\Q$1" }ge; - return '^' . $globstr . '$'; -} - -sub check_autoprop { - my ($self, $pattern, $properties, $file, $fbat) = @_; - # Convert the globbing pattern to a regular expression. - my $regex = glob2pat($pattern); - # Check if the pattern matches the file name. - if($file =~ m/($regex)/) { - # Parse the list of properties to set. - my @props = split(/;/, $properties); - foreach my $prop (@props) { - # Parse 'name=value' syntax and set the property. - if ($prop =~ /([^=]+)=(.*)/) { - my ($n,$v) = ($1,$2); - for ($n, $v) { - s/^\s+//; s/\s+$//; - } - $self->change_file_prop($fbat, $n, $v); - } - } - } -} - -sub apply_autoprops { - my ($self, $file, $fbat) = @_; - my $conf_t = ${$self->{config}}{'config'}; - no warnings 'once'; - # Check [miscellany]/enable-auto-props in svn configuration. - if (SVN::_Core::svn_config_get_bool( - $conf_t, - $SVN::_Core::SVN_CONFIG_SECTION_MISCELLANY, - $SVN::_Core::SVN_CONFIG_OPTION_ENABLE_AUTO_PROPS, - 0)) { - # Auto-props are enabled. Enumerate them to look for matches. - my $callback = sub { - $self->check_autoprop($_[0], $_[1], $file, $fbat); - }; - SVN::_Core::svn_config_enumerate( - $conf_t, - $SVN::_Core::SVN_CONFIG_SECTION_AUTO_PROPS, - $callback); - } -} - -sub A { - my ($self, $m, $deletions) = @_; - my ($dir, $file) = split_path($m->{file_b}); - my $pbat = $self->ensure_path($dir, $deletions); - my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat, - undef, -1); - print "\tA\t$m->{file_b}\n" unless $::_q; - $self->apply_autoprops($file, $fbat); - $self->chg_file($fbat, $m); - $self->close_file($fbat,undef,$self->{pool}); -} - -sub C { - my ($self, $m, $deletions) = @_; - my ($dir, $file) = split_path($m->{file_b}); - my $pbat = $self->ensure_path($dir, $deletions); - my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat, - $self->url_path($m->{file_a}), $self->{r}); - print "\tC\t$m->{file_a} => $m->{file_b}\n" unless $::_q; - $self->chg_file($fbat, $m); - $self->close_file($fbat,undef,$self->{pool}); -} - -sub delete_entry { - my ($self, $path, $pbat) = @_; - my $rpath = $self->repo_path($path); - my ($dir, $file) = split_path($rpath); - $self->{rm}->{$dir} = 1; - $self->SUPER::delete_entry($rpath, $self->{r}, $pbat, $self->{pool}); -} - -sub R { - my ($self, $m, $deletions) = @_; - my ($dir, $file) = split_path($m->{file_b}); - my $pbat = $self->ensure_path($dir, $deletions); - my $fbat = $self->add_file($self->repo_path($m->{file_b}), $pbat, - $self->url_path($m->{file_a}), $self->{r}); - print "\tR\t$m->{file_a} => $m->{file_b}\n" unless $::_q; - $self->apply_autoprops($file, $fbat); - $self->chg_file($fbat, $m); - $self->close_file($fbat,undef,$self->{pool}); - - ($dir, $file) = split_path($m->{file_a}); - $pbat = $self->ensure_path($dir, $deletions); - $self->delete_entry($m->{file_a}, $pbat); -} - -sub M { - my ($self, $m, $deletions) = @_; - my ($dir, $file) = split_path($m->{file_b}); - my $pbat = $self->ensure_path($dir, $deletions); - my $fbat = $self->open_file($self->repo_path($m->{file_b}), - $pbat,$self->{r},$self->{pool}); - print "\t$m->{chg}\t$m->{file_b}\n" unless $::_q; - $self->chg_file($fbat, $m); - $self->close_file($fbat,undef,$self->{pool}); -} - -sub T { shift->M(@_) } - -sub change_file_prop { - my ($self, $fbat, $pname, $pval) = @_; - $self->SUPER::change_file_prop($fbat, $pname, $pval, $self->{pool}); -} - -sub change_dir_prop { - my ($self, $pbat, $pname, $pval) = @_; - $self->SUPER::change_dir_prop($pbat, $pname, $pval, $self->{pool}); -} - -sub _chg_file_get_blob ($$$$) { - my ($self, $fbat, $m, $which) = @_; - my $fh = $::_repository->temp_acquire("git_blob_$which"); - if ($m->{"mode_$which"} =~ /^120/) { - print $fh 'link ' or croak $!; - $self->change_file_prop($fbat,'svn:special','*'); - } elsif ($m->{mode_a} =~ /^120/ && $m->{"mode_$which"} !~ /^120/) { - $self->change_file_prop($fbat,'svn:special',undef); - } - my $blob = $m->{"sha1_$which"}; - return ($fh,) if ($blob =~ /^0{40}$/); - my $size = $::_repository->cat_blob($blob, $fh); - croak "Failed to read object $blob" if ($size < 0); - $fh->flush == 0 or croak $!; - seek $fh, 0, 0 or croak $!; - - my $exp = ::md5sum($fh); - seek $fh, 0, 0 or croak $!; - return ($fh, $exp); -} - -sub chg_file { - my ($self, $fbat, $m) = @_; - if ($m->{mode_b} =~ /755$/ && $m->{mode_a} !~ /755$/) { - $self->change_file_prop($fbat,'svn:executable','*'); - } elsif ($m->{mode_b} !~ /755$/ && $m->{mode_a} =~ /755$/) { - $self->change_file_prop($fbat,'svn:executable',undef); - } - my ($fh_a, $exp_a) = _chg_file_get_blob $self, $fbat, $m, 'a'; - my ($fh_b, $exp_b) = _chg_file_get_blob $self, $fbat, $m, 'b'; - my $pool = SVN::Pool->new; - my $atd = $self->apply_textdelta($fbat, $exp_a, $pool); - if (-s $fh_a) { - my $txstream = SVN::TxDelta::new ($fh_a, $fh_b, $pool); - my $res = SVN::TxDelta::send_txstream($txstream, @$atd, $pool); - if (defined $res) { - die "Unexpected result from send_txstream: $res\n", - "(SVN::Core::VERSION: $SVN::Core::VERSION)\n"; - } - } else { - my $got = SVN::TxDelta::send_stream($fh_b, @$atd, $pool); - die "Checksum mismatch\nexpected: $exp_b\ngot: $got\n" - if ($got ne $exp_b); - } - Git::temp_release($fh_b, 1); - Git::temp_release($fh_a, 1); - $pool->clear; -} - -sub D { - my ($self, $m, $deletions) = @_; - my ($dir, $file) = split_path($m->{file_b}); - my $pbat = $self->ensure_path($dir, $deletions); - print "\tD\t$m->{file_b}\n" unless $::_q; - $self->delete_entry($m->{file_b}, $pbat); -} - -sub close_edit { - my ($self) = @_; - my ($p,$bat) = ($self->{pool}, $self->{bat}); - foreach (sort { $b =~ tr#/#/# <=> $a =~ tr#/#/# } keys %$bat) { - next if $_ eq ''; - $self->close_directory($bat->{$_}, $p); - } - $self->close_directory($bat->{''}, $p); - $self->SUPER::close_edit($p); - $p->clear; -} - -sub abort_edit { - my ($self) = @_; - $self->SUPER::abort_edit($self->{pool}); -} - -sub DESTROY { - my $self = shift; - $self->SUPER::DESTROY(@_); - $self->{pool}->clear; -} - -# this drives the editor -sub apply_diff { - my ($self) = @_; - my $mods = $self->{mods}; - my %o = ( D => 0, C => 1, R => 2, A => 3, M => 4, T => 5 ); - my %deletions; - - foreach my $m (@$mods) { - if ($m->{chg} eq "D") { - $deletions{$m->{file_b}} = 1; - } - } - - foreach my $m (sort { $o{$a->{chg}} <=> $o{$b->{chg}} } @$mods) { - my $f = $m->{chg}; - if (defined $o{$f}) { - $self->$f($m, \%deletions); - } else { - fatal("Invalid change type: $f"); - } - } - - if (defined($self->{mergeinfo})) { - $self->change_dir_prop($self->{bat}{''}, "svn:mergeinfo", - $self->{mergeinfo}); - } - $self->rmdirs if $_rmdir; - if (@$mods == 0 && !defined($self->{mergeinfo})) { - $self->abort_edit; - } else { - $self->close_edit; - } - return scalar @$mods; -} - -package Git::SVN::Ra; -use vars qw/@ISA $config_dir $_ignore_refs_regex $_log_window_size/; -use strict; -use warnings; -my ($ra_invalid, $can_do_switch, %ignored_err, $RA); - -BEGIN { - # enforce temporary pool usage for some simple functions - no strict 'refs'; - for my $f (qw/rev_proplist get_latest_revnum get_uuid get_repos_root - get_file/) { - my $SUPER = "SUPER::$f"; - *$f = sub { - my $self = shift; - my $pool = SVN::Pool->new; - my @ret = $self->$SUPER(@_,$pool); - $pool->clear; - wantarray ? @ret : $ret[0]; - }; - } -} - -sub _auth_providers () { - [ - SVN::Client::get_simple_provider(), - SVN::Client::get_ssl_server_trust_file_provider(), - SVN::Client::get_simple_prompt_provider( - \&Git::SVN::Prompt::simple, 2), - SVN::Client::get_ssl_client_cert_file_provider(), - SVN::Client::get_ssl_client_cert_prompt_provider( - \&Git::SVN::Prompt::ssl_client_cert, 2), - SVN::Client::get_ssl_client_cert_pw_file_provider(), - SVN::Client::get_ssl_client_cert_pw_prompt_provider( - \&Git::SVN::Prompt::ssl_client_cert_pw, 2), - SVN::Client::get_username_provider(), - SVN::Client::get_ssl_server_trust_prompt_provider( - \&Git::SVN::Prompt::ssl_server_trust), - SVN::Client::get_username_prompt_provider( - \&Git::SVN::Prompt::username, 2) - ] -} - -sub escape_uri_only { - my ($uri) = @_; - my @tmp; - foreach (split m{/}, $uri) { - s/([^~\w.%+-]|%(?![a-fA-F0-9]{2}))/sprintf("%%%02X",ord($1))/eg; - push @tmp, $_; - } - join('/', @tmp); -} - -sub escape_url { - my ($url) = @_; - if ($url =~ m#^(https?)://([^/]+)(.*)$#) { - my ($scheme, $domain, $uri) = ($1, $2, escape_uri_only($3)); - $url = "$scheme://$domain$uri"; - } - $url; -} - -sub new { - my ($class, $url) = @_; - $url =~ s!/+$!!; - return $RA if ($RA && $RA->{url} eq $url); - - ::_req_svn(); - - SVN::_Core::svn_config_ensure($config_dir, undef); - my ($baton, $callbacks) = SVN::Core::auth_open_helper(_auth_providers); - my $config = SVN::Core::config_get_config($config_dir); - $RA = undef; - my $dont_store_passwords = 1; - my $conf_t = ${$config}{'config'}; - { - no warnings 'once'; - # The usage of $SVN::_Core::SVN_CONFIG_* variables - # produces warnings that variables are used only once. - # I had not found the better way to shut them up, so - # the warnings of type 'once' are disabled in this block. - if (SVN::_Core::svn_config_get_bool($conf_t, - $SVN::_Core::SVN_CONFIG_SECTION_AUTH, - $SVN::_Core::SVN_CONFIG_OPTION_STORE_PASSWORDS, - 1) == 0) { - SVN::_Core::svn_auth_set_parameter($baton, - $SVN::_Core::SVN_AUTH_PARAM_DONT_STORE_PASSWORDS, - bless (\$dont_store_passwords, "_p_void")); - } - if (SVN::_Core::svn_config_get_bool($conf_t, - $SVN::_Core::SVN_CONFIG_SECTION_AUTH, - $SVN::_Core::SVN_CONFIG_OPTION_STORE_AUTH_CREDS, - 1) == 0) { - $Git::SVN::Prompt::_no_auth_cache = 1; - } - } # no warnings 'once' - my $self = SVN::Ra->new(url => escape_url($url), auth => $baton, - config => $config, - pool => SVN::Pool->new, - auth_provider_callbacks => $callbacks); - $self->{url} = $url; - $self->{svn_path} = $url; - $self->{repos_root} = $self->get_repos_root; - $self->{svn_path} =~ s#^\Q$self->{repos_root}\E(/|$)##; - $self->{cache} = { check_path => { r => 0, data => {} }, - get_dir => { r => 0, data => {} } }; - $RA = bless $self, $class; -} - -sub check_path { - my ($self, $path, $r) = @_; - my $cache = $self->{cache}->{check_path}; - if ($r == $cache->{r} && exists $cache->{data}->{$path}) { - return $cache->{data}->{$path}; - } - my $pool = SVN::Pool->new; - my $t = $self->SUPER::check_path($path, $r, $pool); - $pool->clear; - if ($r != $cache->{r}) { - %{$cache->{data}} = (); - $cache->{r} = $r; - } - $cache->{data}->{$path} = $t; -} - -sub get_dir { - my ($self, $dir, $r) = @_; - my $cache = $self->{cache}->{get_dir}; - if ($r == $cache->{r}) { - if (my $x = $cache->{data}->{$dir}) { - return wantarray ? @$x : $x->[0]; - } - } - my $pool = SVN::Pool->new; - my ($d, undef, $props) = $self->SUPER::get_dir($dir, $r, $pool); - my %dirents = map { $_ => { kind => $d->{$_}->kind } } keys %$d; - $pool->clear; - if ($r != $cache->{r}) { - %{$cache->{data}} = (); - $cache->{r} = $r; - } - $cache->{data}->{$dir} = [ \%dirents, $r, $props ]; - wantarray ? (\%dirents, $r, $props) : \%dirents; -} - -sub DESTROY { - # do not call the real DESTROY since we store ourselves in $RA -} - -# get_log(paths, start, end, limit, -# discover_changed_paths, strict_node_history, receiver) -sub get_log { - my ($self, @args) = @_; - my $pool = SVN::Pool->new; - - # svn_log_changed_path_t objects passed to get_log are likely to be - # overwritten even if only the refs are copied to an external variable, - # so we should dup the structures in their entirety. Using an - # externally passed pool (instead of our temporary and quickly cleared - # pool in Git::SVN::Ra) does not help matters at all... - my $receiver = pop @args; - my $prefix = "/".$self->{svn_path}; - $prefix =~ s#/+($)##; - my $prefix_regex = qr#^\Q$prefix\E#; - push(@args, sub { - my ($paths) = $_[0]; - return &$receiver(@_) unless $paths; - $_[0] = (); - foreach my $p (keys %$paths) { - my $i = $paths->{$p}; - # Make path relative to our url, not repos_root - $p =~ s/$prefix_regex//; - my %s = map { $_ => $i->$_; } - qw/copyfrom_path copyfrom_rev action/; - if ($s{'copyfrom_path'}) { - $s{'copyfrom_path'} =~ s/$prefix_regex//; - } - $_[0]{$p} = \%s; - } - &$receiver(@_); - }); - - - # the limit parameter was not supported in SVN 1.1.x, so we - # drop it. Therefore, the receiver callback passed to it - # is made aware of this limitation by being wrapped if - # the limit passed to is being wrapped. - if ($SVN::Core::VERSION le '1.2.0') { - my $limit = splice(@args, 3, 1); - if ($limit > 0) { - my $receiver = pop @args; - push(@args, sub { &$receiver(@_) if (--$limit >= 0) }); - } - } - my $ret = $self->SUPER::get_log(@args, $pool); - $pool->clear; - $ret; -} - -sub trees_match { - my ($self, $url1, $rev1, $url2, $rev2) = @_; - my $ctx = SVN::Client->new(auth => _auth_providers); - my $out = IO::File->new_tmpfile; - - # older SVN (1.1.x) doesn't take $pool as the last parameter for - # $ctx->diff(), so we'll create a default one - my $pool = SVN::Pool->new_default_sub; - - $ra_invalid = 1; # this will open a new SVN::Ra connection to $url1 - $ctx->diff([], $url1, $rev1, $url2, $rev2, 1, 1, 0, $out, $out); - $out->flush; - my $ret = (($out->stat)[7] == 0); - close $out or croak $!; - - $ret; -} - -sub get_commit_editor { - my ($self, $log, $cb, $pool) = @_; - my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef, 0) : (); - $self->SUPER::get_commit_editor($log, $cb, @lock, $pool); -} - -sub gs_do_update { - my ($self, $rev_a, $rev_b, $gs, $editor) = @_; - my $new = ($rev_a == $rev_b); - my $path = $gs->{path}; - - if ($new && -e $gs->{index}) { - unlink $gs->{index} or die - "Couldn't unlink index: $gs->{index}: $!\n"; - } - my $pool = SVN::Pool->new; - $editor->set_path_strip($path); - my (@pc) = split m#/#, $path; - my $reporter = $self->do_update($rev_b, (@pc ? shift @pc : ''), - 1, $editor, $pool); - my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : (); - - # Since we can't rely on svn_ra_reparent being available, we'll - # just have to do some magic with set_path to make it so - # we only want a partial path. - my $sp = ''; - my $final = join('/', @pc); - while (@pc) { - $reporter->set_path($sp, $rev_b, 0, @lock, $pool); - $sp .= '/' if length $sp; - $sp .= shift @pc; - } - die "BUG: '$sp' != '$final'\n" if ($sp ne $final); - - $reporter->set_path($sp, $rev_a, $new, @lock, $pool); - - $reporter->finish_report($pool); - $pool->clear; - $editor->{git_commit_ok}; -} - -# this requires SVN 1.4.3 or later (do_switch didn't work before 1.4.3, and -# svn_ra_reparent didn't work before 1.4) -sub gs_do_switch { - my ($self, $rev_a, $rev_b, $gs, $url_b, $editor) = @_; - my $path = $gs->{path}; - my $pool = SVN::Pool->new; - - my $full_url = $self->{url}; - my $old_url = $full_url; - $full_url .= '/' . $path if length $path; - my ($ra, $reparented); - - if ($old_url =~ m#^svn(\+ssh)?://# || - ($full_url =~ m#^https?://# && - escape_url($full_url) ne $full_url)) { - $_[0] = undef; - $self = undef; - $RA = undef; - $ra = Git::SVN::Ra->new($full_url); - $ra_invalid = 1; - } elsif ($old_url ne $full_url) { - SVN::_Ra::svn_ra_reparent($self->{session}, $full_url, $pool); - $self->{url} = $full_url; - $reparented = 1; - } - - $ra ||= $self; - $url_b = escape_url($url_b); - my $reporter = $ra->do_switch($rev_b, '', 1, $url_b, $editor, $pool); - my @lock = $SVN::Core::VERSION ge '1.2.0' ? (undef) : (); - $reporter->set_path('', $rev_a, 0, @lock, $pool); - $reporter->finish_report($pool); - - if ($reparented) { - SVN::_Ra::svn_ra_reparent($self->{session}, $old_url, $pool); - $self->{url} = $old_url; - } - - $pool->clear; - $editor->{git_commit_ok}; -} - -sub longest_common_path { - my ($gsv, $globs) = @_; - my %common; - my $common_max = scalar @$gsv; - - foreach my $gs (@$gsv) { - my @tmp = split m#/#, $gs->{path}; - my $p = ''; - foreach (@tmp) { - $p .= length($p) ? "/$_" : $_; - $common{$p} ||= 0; - $common{$p}++; - } - } - $globs ||= []; - $common_max += scalar @$globs; - foreach my $glob (@$globs) { - my @tmp = split m#/#, $glob->{path}->{left}; - my $p = ''; - foreach (@tmp) { - $p .= length($p) ? "/$_" : $_; - $common{$p} ||= 0; - $common{$p}++; - } - } - - my $longest_path = ''; - foreach (sort {length $b <=> length $a} keys %common) { - if ($common{$_} == $common_max) { - $longest_path = $_; - last; - } - } - $longest_path; -} - -sub gs_fetch_loop_common { - my ($self, $base, $head, $gsv, $globs) = @_; - return if ($base > $head); - my $inc = $_log_window_size; - my ($min, $max) = ($base, $head < $base + $inc ? $head : $base + $inc); - my $longest_path = longest_common_path($gsv, $globs); - my $ra_url = $self->{url}; - my $find_trailing_edge; - while (1) { - my %revs; - my $err; - my $err_handler = $SVN::Error::handler; - $SVN::Error::handler = sub { - ($err) = @_; - skip_unknown_revs($err); - }; - sub _cb { - my ($paths, $r, $author, $date, $log) = @_; - [ $paths, - { author => $author, date => $date, log => $log } ]; - } - $self->get_log([$longest_path], $min, $max, 0, 1, 1, - sub { $revs{$_[1]} = _cb(@_) }); - if ($err) { - print "Checked through r$max\r"; - } else { - $find_trailing_edge = 1; - } - if ($err and $find_trailing_edge) { - print STDERR "Path '$longest_path' ", - "was probably deleted:\n", - $err->expanded_message, - "\nWill attempt to follow ", - "revisions r$min .. r$max ", - "committed before the deletion\n"; - my $hi = $max; - while (--$hi >= $min) { - my $ok; - $self->get_log([$longest_path], $min, $hi, - 0, 1, 1, sub { - $ok = $_[1]; - $revs{$_[1]} = _cb(@_) }); - if ($ok) { - print STDERR "r$min .. r$ok OK\n"; - last; - } - } - $find_trailing_edge = 0; - } - $SVN::Error::handler = $err_handler; - - my %exists = map { $_->{path} => $_ } @$gsv; - foreach my $r (sort {$a <=> $b} keys %revs) { - my ($paths, $logged) = @{$revs{$r}}; - - foreach my $gs ($self->match_globs(\%exists, $paths, - $globs, $r)) { - if ($gs->rev_map_max >= $r) { - next; - } - next unless $gs->match_paths($paths, $r); - $gs->{logged_rev_props} = $logged; - if (my $last_commit = $gs->last_commit) { - $gs->assert_index_clean($last_commit); - } - my $log_entry = $gs->do_fetch($paths, $r); - if ($log_entry) { - $gs->do_git_commit($log_entry); - } - $INDEX_FILES{$gs->{index}} = 1; - } - foreach my $g (@$globs) { - my $k = "svn-remote.$g->{remote}." . - "$g->{t}-maxRev"; - Git::SVN::tmp_config($k, $r); - } - if ($ra_invalid) { - $_[0] = undef; - $self = undef; - $RA = undef; - $self = Git::SVN::Ra->new($ra_url); - $ra_invalid = undef; - } - } - # pre-fill the .rev_db since it'll eventually get filled in - # with '0' x40 if something new gets committed - foreach my $gs (@$gsv) { - next if $gs->rev_map_max >= $max; - next if defined $gs->rev_map_get($max); - $gs->rev_map_set($max, 0 x40); - } - foreach my $g (@$globs) { - my $k = "svn-remote.$g->{remote}.$g->{t}-maxRev"; - Git::SVN::tmp_config($k, $max); - } - last if $max >= $head; - $min = $max + 1; - $max += $inc; - $max = $head if ($max > $head); - } - Git::SVN::gc(); -} - -sub get_dir_globbed { - my ($self, $left, $depth, $r) = @_; - - my @x = eval { $self->get_dir($left, $r) }; - return unless scalar @x == 3; - my $dirents = $x[0]; - my @finalents; - foreach my $de (keys %$dirents) { - next if $dirents->{$de}->{kind} != $SVN::Node::dir; - if ($depth > 1) { - my @args = ("$left/$de", $depth - 1, $r); - foreach my $dir ($self->get_dir_globbed(@args)) { - push @finalents, "$de/$dir"; - } - } else { - push @finalents, $de; - } - } - @finalents; -} - -# return value: 0 -- don't ignore, 1 -- ignore -sub is_ref_ignored { - my ($g, $p) = @_; - my $refname = $g->{ref}->full_path($p); - return 1 if defined($g->{ignore_refs_regex}) && - $refname =~ m!$g->{ignore_refs_regex}!; - return 0 unless defined($_ignore_refs_regex); - return 1 if $refname =~ m!$_ignore_refs_regex!o; - return 0; -} - -sub match_globs { - my ($self, $exists, $paths, $globs, $r) = @_; - - sub get_dir_check { - my ($self, $exists, $g, $r) = @_; - - my @dirs = $self->get_dir_globbed($g->{path}->{left}, - $g->{path}->{depth}, - $r); - - foreach my $de (@dirs) { - my $p = $g->{path}->full_path($de); - next if $exists->{$p}; - next if (length $g->{path}->{right} && - ($self->check_path($p, $r) != - $SVN::Node::dir)); - next unless $p =~ /$g->{path}->{regex}/; - $exists->{$p} = Git::SVN->init($self->{url}, $p, undef, - $g->{ref}->full_path($de), 1); - } - } - foreach my $g (@$globs) { - if (my $path = $paths->{"/$g->{path}->{left}"}) { - if ($path->{action} =~ /^[AR]$/) { - get_dir_check($self, $exists, $g, $r); - } - } - foreach (keys %$paths) { - if (/$g->{path}->{left_regex}/ && - !/$g->{path}->{regex}/) { - next if $paths->{$_}->{action} !~ /^[AR]$/; - get_dir_check($self, $exists, $g, $r); - } - next unless /$g->{path}->{regex}/; - my $p = $1; - my $pathname = $g->{path}->full_path($p); - next if is_ref_ignored($g, $p); - next if $exists->{$pathname}; - next if ($self->check_path($pathname, $r) != - $SVN::Node::dir); - $exists->{$pathname} = Git::SVN->init( - $self->{url}, $pathname, undef, - $g->{ref}->full_path($p), 1); - } - my $c = ''; - foreach (split m#/#, $g->{path}->{left}) { - $c .= "/$_"; - next unless ($paths->{$c} && - ($paths->{$c}->{action} =~ /^[AR]$/)); - get_dir_check($self, $exists, $g, $r); - } - } - values %$exists; -} - -sub minimize_url { - my ($self) = @_; - return $self->{url} if ($self->{url} eq $self->{repos_root}); - my $url = $self->{repos_root}; - my @components = split(m!/!, $self->{svn_path}); - my $c = ''; - do { - $url .= "/$c" if length $c; - eval { - my $ra = (ref $self)->new($url); - my $latest = $ra->get_latest_revnum; - $ra->get_log("", $latest, 0, 1, 0, 1, sub {}); - }; - } while ($@ && ($c = shift @components)); - $url; -} - -sub can_do_switch { - my $self = shift; - unless (defined $can_do_switch) { - my $pool = SVN::Pool->new; - my $rep = eval { - $self->do_switch(1, '', 0, $self->{url}, - SVN::Delta::Editor->new, $pool); - }; - if ($@) { - $can_do_switch = 0; - } else { - $rep->abort_report($pool); - $can_do_switch = 1; - } - $pool->clear; - } - $can_do_switch; -} - -sub skip_unknown_revs { - my ($err) = @_; - my $errno = $err->apr_err(); - # Maybe the branch we're tracking didn't - # exist when the repo started, so it's - # not an error if it doesn't, just continue - # - # Wonderfully consistent library, eh? - # 160013 - svn:// and file:// - # 175002 - http(s):// - # 175007 - http(s):// (this repo required authorization, too...) - # More codes may be discovered later... - if ($errno == 175007 || $errno == 175002 || $errno == 160013) { - my $err_key = $err->expanded_message; - # revision numbers change every time, filter them out - $err_key =~ s/\d+/\0/g; - $err_key = "$errno\0$err_key"; - unless ($ignored_err{$err_key}) { - warn "W: Ignoring error from SVN, path probably ", - "does not exist: ($errno): ", - $err->expanded_message,"\n"; - warn "W: Do not be alarmed at the above message ", - "git-svn is just searching aggressively for ", - "old history.\n", - "This may take a while on large repositories\n"; - $ignored_err{$err_key} = 1; - } - return; - } - die "Error from SVN, ($errno): ", $err->expanded_message,"\n"; -} - -package Git::SVN::Log; -use strict; -use warnings; -use POSIX qw/strftime/; -use constant commit_log_separator => ('-' x 72) . "\n"; -use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline - %rusers $show_commit $incremental/; -my $l_fmt; - -sub cmt_showable { - my ($c) = @_; - return 1 if defined $c->{r}; - - # big commit message got truncated by the 16k pretty buffer in rev-list - if ($c->{l} && $c->{l}->[-1] eq "...\n" && - $c->{a_raw} =~ /\@([a-f\d\-]+)>$/) { - @{$c->{l}} = (); - my @log = command(qw/cat-file commit/, $c->{c}); - - # shift off the headers - shift @log while ($log[0] ne ''); - shift @log; - - # TODO: make $c->{l} not have a trailing newline in the future - @{$c->{l}} = map { "$_\n" } grep !/^git-svn-id: /, @log; - - (undef, $c->{r}, undef) = ::extract_metadata( - (grep(/^git-svn-id: /, @log))[-1]); - } - return defined $c->{r}; -} - -sub log_use_color { - return $color || Git->repository->get_colorbool('color.diff'); -} - -sub git_svn_log_cmd { - my ($r_min, $r_max, @args) = @_; - my $head = 'HEAD'; - my (@files, @log_opts); - foreach my $x (@args) { - if ($x eq '--' || @files) { - push @files, $x; - } else { - if (::verify_ref("$x^0")) { - $head = $x; - } else { - push @log_opts, $x; - } - } - } - - my ($url, $rev, $uuid, $gs) = ::working_head_info($head); - $gs ||= Git::SVN->_new; - my @cmd = (qw/log --abbrev-commit --pretty=raw --default/, - $gs->refname); - push @cmd, '-r' unless $non_recursive; - push @cmd, qw/--raw --name-status/ if $verbose; - push @cmd, '--color' if log_use_color(); - push @cmd, @log_opts; - if (defined $r_max && $r_max == $r_min) { - push @cmd, '--max-count=1'; - if (my $c = $gs->rev_map_get($r_max)) { - push @cmd, $c; - } - } elsif (defined $r_max) { - if ($r_max < $r_min) { - ($r_min, $r_max) = ($r_max, $r_min); - } - my (undef, $c_max) = $gs->find_rev_before($r_max, 1, $r_min); - my (undef, $c_min) = $gs->find_rev_after($r_min, 1, $r_max); - # If there are no commits in the range, both $c_max and $c_min - # will be undefined. If there is at least 1 commit in the - # range, both will be defined. - return () if !defined $c_min || !defined $c_max; - if ($c_min eq $c_max) { - push @cmd, '--max-count=1', $c_min; - } else { - push @cmd, '--boundary', "$c_min..$c_max"; - } - } - return (@cmd, @files); -} - -# adapted from pager.c -sub config_pager { - if (! -t *STDOUT) { - $ENV{GIT_PAGER_IN_USE} = 'false'; - $pager = undef; - return; - } - chomp($pager = command_oneline(qw(var GIT_PAGER))); - if ($pager eq 'cat') { - $pager = undef; - } - $ENV{GIT_PAGER_IN_USE} = defined($pager); -} - -sub run_pager { - return unless defined $pager; - pipe my ($rfd, $wfd) or return; - defined(my $pid = fork) or ::fatal "Can't fork: $!"; - if (!$pid) { - open STDOUT, '>&', $wfd or - ::fatal "Can't redirect to stdout: $!"; - return; - } - open STDIN, '<&', $rfd or ::fatal "Can't redirect stdin: $!"; - $ENV{LESS} ||= 'FRSX'; - exec $pager or ::fatal "Can't run pager: $! ($pager)"; -} - -sub format_svn_date { - my $t = shift || time; - my $gmoff = Git::SVN::get_tz($t); - return strftime("%Y-%m-%d %H:%M:%S $gmoff (%a, %d %b %Y)", localtime($t)); -} - -sub parse_git_date { - my ($t, $tz) = @_; - # Date::Parse isn't in the standard Perl distro :( - if ($tz =~ s/^\+//) { - $t += tz_to_s_offset($tz); - } elsif ($tz =~ s/^\-//) { - $t -= tz_to_s_offset($tz); - } - return $t; -} - -sub set_local_timezone { - if (defined $TZ) { - $ENV{TZ} = $TZ; - } else { - delete $ENV{TZ}; - } -} - -sub tz_to_s_offset { - my ($tz) = @_; - $tz =~ s/(\d\d)$//; - return ($1 * 60) + ($tz * 3600); -} - -sub get_author_info { - my ($dest, $author, $t, $tz) = @_; - $author =~ s/(?:^\s*|\s*$)//g; - $dest->{a_raw} = $author; - my $au; - if ($::_authors) { - $au = $rusers{$author} || undef; - } - if (!$au) { - ($au) = ($author =~ /<([^>]+)\@[^>]+>$/); - } - $dest->{t} = $t; - $dest->{tz} = $tz; - $dest->{a} = $au; - $dest->{t_utc} = parse_git_date($t, $tz); -} - -sub process_commit { - my ($c, $r_min, $r_max, $defer) = @_; - if (defined $r_min && defined $r_max) { - if ($r_min == $c->{r} && $r_min == $r_max) { - show_commit($c); - return 0; - } - return 1 if $r_min == $r_max; - if ($r_min < $r_max) { - # we need to reverse the print order - return 0 if (defined $limit && --$limit < 0); - push @$defer, $c; - return 1; - } - if ($r_min != $r_max) { - return 1 if ($r_min < $c->{r}); - return 1 if ($r_max > $c->{r}); - } - } - return 0 if (defined $limit && --$limit < 0); - show_commit($c); - return 1; -} - -sub show_commit { - my $c = shift; - if ($oneline) { - my $x = "\n"; - if (my $l = $c->{l}) { - while ($l->[0] =~ /^\s*$/) { shift @$l } - $x = $l->[0]; - } - $l_fmt ||= 'A' . length($c->{r}); - print 'r',pack($l_fmt, $c->{r}),' | '; - print "$c->{c} | " if $show_commit; - print $x; - } else { - show_commit_normal($c); - } -} - -sub show_commit_changed_paths { - my ($c) = @_; - return unless $c->{changed}; - print "Changed paths:\n", @{$c->{changed}}; -} - -sub show_commit_normal { - my ($c) = @_; - print commit_log_separator, "r$c->{r} | "; - print "$c->{c} | " if $show_commit; - print "$c->{a} | ", format_svn_date($c->{t_utc}), ' | '; - my $nr_line = 0; - - if (my $l = $c->{l}) { - while ($l->[$#$l] eq "\n" && $#$l > 0 - && $l->[($#$l - 1)] eq "\n") { - pop @$l; - } - $nr_line = scalar @$l; - if (!$nr_line) { - print "1 line\n\n\n"; - } else { - if ($nr_line == 1) { - $nr_line = '1 line'; - } else { - $nr_line .= ' lines'; - } - print $nr_line, "\n"; - show_commit_changed_paths($c); - print "\n"; - print $_ foreach @$l; - } - } else { - print "1 line\n"; - show_commit_changed_paths($c); - print "\n"; - - } - foreach my $x (qw/raw stat diff/) { - if ($c->{$x}) { - print "\n"; - print $_ foreach @{$c->{$x}} - } - } -} - -sub cmd_show_log { - my (@args) = @_; - my ($r_min, $r_max); - my $r_last = -1; # prevent dupes - set_local_timezone(); - if (defined $::_revision) { - if ($::_revision =~ /^(\d+):(\d+)$/) { - ($r_min, $r_max) = ($1, $2); - } elsif ($::_revision =~ /^\d+$/) { - $r_min = $r_max = $::_revision; - } else { - ::fatal "-r$::_revision is not supported, use ", - "standard 'git log' arguments instead"; - } - } - - config_pager(); - @args = git_svn_log_cmd($r_min, $r_max, @args); - if (!@args) { - print commit_log_separator unless $incremental || $oneline; - return; - } - my $log = command_output_pipe(@args); - run_pager(); - my (@k, $c, $d, $stat); - my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/; - while (<$log>) { - if (/^${esc_color}commit (?:- )?($::sha1_short)/o) { - my $cmt = $1; - if ($c && cmt_showable($c) && $c->{r} != $r_last) { - $r_last = $c->{r}; - process_commit($c, $r_min, $r_max, \@k) or - goto out; - } - $d = undef; - $c = { c => $cmt }; - } elsif (/^${esc_color}author (.+) (\d+) ([\-\+]?\d+)$/o) { - get_author_info($c, $1, $2, $3); - } elsif (/^${esc_color}(?:tree|parent|committer) /o) { - # ignore - } elsif (/^${esc_color}:\d{6} \d{6} $::sha1_short/o) { - push @{$c->{raw}}, $_; - } elsif (/^${esc_color}[ACRMDT]\t/) { - # we could add $SVN->{svn_path} here, but that requires - # remote access at the moment (repo_path_split)... - s#^(${esc_color})([ACRMDT])\t#$1 $2 #o; - push @{$c->{changed}}, $_; - } elsif (/^${esc_color}diff /o) { - $d = 1; - push @{$c->{diff}}, $_; - } elsif ($d) { - push @{$c->{diff}}, $_; - } elsif (/^\ .+\ \|\s*\d+\ $esc_color[\+\-]* - $esc_color*[\+\-]*$esc_color$/x) { - $stat = 1; - push @{$c->{stat}}, $_; - } elsif ($stat && /^ \d+ files changed, \d+ insertions/) { - push @{$c->{stat}}, $_; - $stat = undef; - } elsif (/^${esc_color} (git-svn-id:.+)$/o) { - ($c->{url}, $c->{r}, undef) = ::extract_metadata($1); - } elsif (s/^${esc_color} //o) { - push @{$c->{l}}, $_; - } - } - if ($c && defined $c->{r} && $c->{r} != $r_last) { - $r_last = $c->{r}; - process_commit($c, $r_min, $r_max, \@k); - } - if (@k) { - ($r_min, $r_max) = ($r_max, $r_min); - process_commit($_, $r_min, $r_max) foreach reverse @k; - } -out: - close $log; - print commit_log_separator unless $incremental || $oneline; -} - -sub cmd_blame { - my $path = pop; - - config_pager(); - run_pager(); - - my ($fh, $ctx, $rev); - - if ($_git_format) { - ($fh, $ctx) = command_output_pipe('blame', @_, $path); - while (my $line = <$fh>) { - if ($line =~ /^\^?([[:xdigit:]]+)\s/) { - # Uncommitted edits show up as a rev ID of - # all zeros, which we can't look up with - # cmt_metadata - if ($1 !~ /^0+$/) { - (undef, $rev, undef) = - ::cmt_metadata($1); - $rev = '0' if (!$rev); - } else { - $rev = '0'; - } - $rev = sprintf('%-10s', $rev); - $line =~ s/^\^?[[:xdigit:]]+(\s)/$rev$1/; - } - print $line; - } - } else { - ($fh, $ctx) = command_output_pipe('blame', '-p', @_, 'HEAD', - '--', $path); - my ($sha1); - my %authors; - my @buffer; - my %dsha; #distinct sha keys - - while (my $line = <$fh>) { - push @buffer, $line; - if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) { - $dsha{$1} = 1; - } - } - - my $s2r = ::cmt_sha2rev_batch([keys %dsha]); - - foreach my $line (@buffer) { - if ($line =~ /^([[:xdigit:]]{40})\s\d+\s\d+/) { - $rev = $s2r->{$1}; - $rev = '0' if (!$rev) - } - elsif ($line =~ /^author (.*)/) { - $authors{$rev} = $1; - $authors{$rev} =~ s/\s/_/g; - } - elsif ($line =~ /^\t(.*)$/) { - printf("%6s %10s %s\n", $rev, $authors{$rev}, $1); - } - } - } - command_close_pipe($fh, $ctx); -} - -package Git::SVN::Migration; -# these version numbers do NOT correspond to actual version numbers -# of git nor git-svn. They are just relative. -# -# v0 layout: .git/$id/info/url, refs/heads/$id-HEAD -# -# v1 layout: .git/$id/info/url, refs/remotes/$id -# -# v2 layout: .git/svn/$id/info/url, refs/remotes/$id -# -# v3 layout: .git/svn/$id, refs/remotes/$id -# - info/url may remain for backwards compatibility -# - this is what we migrate up to this layout automatically, -# - this will be used by git svn init on single branches -# v3.1 layout (auto migrated): -# - .rev_db => .rev_db.$UUID, .rev_db will remain as a symlink -# for backwards compatibility -# -# v4 layout: .git/svn/$repo_id/$id, refs/remotes/$repo_id/$id -# - this is only created for newly multi-init-ed -# repositories. Similar in spirit to the -# --use-separate-remotes option in git-clone (now default) -# - we do not automatically migrate to this (following -# the example set by core git) -# -# v5 layout: .rev_db.$UUID => .rev_map.$UUID -# - newer, more-efficient format that uses 24-bytes per record -# with no filler space. -# - use xxd -c24 < .rev_map.$UUID to view and debug -# - This is a one-way migration, repositories updated to the -# new format will not be able to use old git-svn without -# rebuilding the .rev_db. Rebuilding the rev_db is not -# possible if noMetadata or useSvmProps are set; but should -# be no problem for users that use the (sensible) defaults. -use strict; -use warnings; -use Carp qw/croak/; -use File::Path qw/mkpath/; -use File::Basename qw/dirname basename/; -use vars qw/$_minimize/; - -sub migrate_from_v0 { - my $git_dir = $ENV{GIT_DIR}; - return undef unless -d $git_dir; - my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/); - my $migrated = 0; - while (<$fh>) { - chomp; - my ($id, $orig_ref) = ($_, $_); - next unless $id =~ s#^refs/heads/(.+)-HEAD$#$1#; - next unless -f "$git_dir/$id/info/url"; - my $new_ref = "refs/remotes/$id"; - if (::verify_ref("$new_ref^0")) { - print STDERR "W: $orig_ref is probably an old ", - "branch used by an ancient version of ", - "git-svn.\n", - "However, $new_ref also exists.\n", - "We will not be able ", - "to use this branch until this ", - "ambiguity is resolved.\n"; - next; - } - print STDERR "Migrating from v0 layout...\n" if !$migrated; - print STDERR "Renaming ref: $orig_ref => $new_ref\n"; - command_noisy('update-ref', $new_ref, $orig_ref); - command_noisy('update-ref', '-d', $orig_ref, $orig_ref); - $migrated++; - } - command_close_pipe($fh, $ctx); - print STDERR "Done migrating from v0 layout...\n" if $migrated; - $migrated; -} - -sub migrate_from_v1 { - my $git_dir = $ENV{GIT_DIR}; - my $migrated = 0; - return $migrated unless -d $git_dir; - my $svn_dir = "$git_dir/svn"; - - # just in case somebody used 'svn' as their $id at some point... - return $migrated if -d $svn_dir && ! -f "$svn_dir/info/url"; - - print STDERR "Migrating from a git-svn v1 layout...\n"; - mkpath([$svn_dir]); - print STDERR "Data from a previous version of git-svn exists, but\n\t", - "$svn_dir\n\t(required for this version ", - "($::VERSION) of git-svn) does not exist.\n"; - my ($fh, $ctx) = command_output_pipe(qw/rev-parse --symbolic --all/); - while (<$fh>) { - my $x = $_; - next unless $x =~ s#^refs/remotes/##; - chomp $x; - next unless -f "$git_dir/$x/info/url"; - my $u = eval { ::file_to_s("$git_dir/$x/info/url") }; - next unless $u; - my $dn = dirname("$git_dir/svn/$x"); - mkpath([$dn]) unless -d $dn; - if ($x eq 'svn') { # they used 'svn' as GIT_SVN_ID: - mkpath(["$git_dir/svn/svn"]); - print STDERR " - $git_dir/$x/info => ", - "$git_dir/svn/$x/info\n"; - rename "$git_dir/$x/info", "$git_dir/svn/$x/info" or - croak "$!: $x"; - # don't worry too much about these, they probably - # don't exist with repos this old (save for index, - # and we can easily regenerate that) - foreach my $f (qw/unhandled.log index .rev_db/) { - rename "$git_dir/$x/$f", "$git_dir/svn/$x/$f"; - } - } else { - print STDERR " - $git_dir/$x => $git_dir/svn/$x\n"; - rename "$git_dir/$x", "$git_dir/svn/$x" or - croak "$!: $x"; - } - $migrated++; - } - command_close_pipe($fh, $ctx); - print STDERR "Done migrating from a git-svn v1 layout\n"; - $migrated; -} - -sub read_old_urls { - my ($l_map, $pfx, $path) = @_; - my @dir; - foreach (<$path/*>) { - if (-r "$_/info/url") { - $pfx .= '/' if $pfx && $pfx !~ m!/$!; - my $ref_id = $pfx . basename $_; - my $url = ::file_to_s("$_/info/url"); - $l_map->{$ref_id} = $url; - } elsif (-d $_) { - push @dir, $_; - } - } - foreach (@dir) { - my $x = $_; - $x =~ s!^\Q$ENV{GIT_DIR}\E/svn/!!o; - read_old_urls($l_map, $x, $_); - } -} - -sub migrate_from_v2 { - my @cfg = command(qw/config -l/); - return if grep /^svn-remote\..+\.url=/, @cfg; - my %l_map; - read_old_urls(\%l_map, '', "$ENV{GIT_DIR}/svn"); - my $migrated = 0; - - foreach my $ref_id (sort keys %l_map) { - eval { Git::SVN->init($l_map{$ref_id}, '', undef, $ref_id) }; - if ($@) { - Git::SVN->init($l_map{$ref_id}, '', $ref_id, $ref_id); - } - $migrated++; - } - $migrated; -} - -sub minimize_connections { - my $r = Git::SVN::read_all_remotes(); - my $new_urls = {}; - my $root_repos = {}; - foreach my $repo_id (keys %$r) { - my $url = $r->{$repo_id}->{url} or next; - my $fetch = $r->{$repo_id}->{fetch} or next; - my $ra = Git::SVN::Ra->new($url); - - # skip existing cases where we already connect to the root - if (($ra->{url} eq $ra->{repos_root}) || - ($ra->{repos_root} eq $repo_id)) { - $root_repos->{$ra->{url}} = $repo_id; - next; - } - - my $root_ra = Git::SVN::Ra->new($ra->{repos_root}); - my $root_path = $ra->{url}; - $root_path =~ s#^\Q$ra->{repos_root}\E(/|$)##; - foreach my $path (keys %$fetch) { - my $ref_id = $fetch->{$path}; - my $gs = Git::SVN->new($ref_id, $repo_id, $path); - - # make sure we can read when connecting to - # a higher level of a repository - my ($last_rev, undef) = $gs->last_rev_commit; - if (!defined $last_rev) { - $last_rev = eval { - $root_ra->get_latest_revnum; - }; - next if $@; - } - my $new = $root_path; - $new .= length $path ? "/$path" : ''; - eval { - $root_ra->get_log([$new], $last_rev, $last_rev, - 0, 0, 1, sub { }); - }; - next if $@; - $new_urls->{$ra->{repos_root}}->{$new} = - { ref_id => $ref_id, - old_repo_id => $repo_id, - old_path => $path }; - } - } - - my @emptied; - foreach my $url (keys %$new_urls) { - # see if we can re-use an existing [svn-remote "repo_id"] - # instead of creating a(n ugly) new section: - my $repo_id = $root_repos->{$url} || $url; - - my $fetch = $new_urls->{$url}; - foreach my $path (keys %$fetch) { - my $x = $fetch->{$path}; - Git::SVN->init($url, $path, $repo_id, $x->{ref_id}); - my $pfx = "svn-remote.$x->{old_repo_id}"; - - my $old_fetch = quotemeta("$x->{old_path}:". - "$x->{ref_id}"); - command_noisy(qw/config --unset/, - "$pfx.fetch", '^'. $old_fetch . '$'); - delete $r->{$x->{old_repo_id}}-> - {fetch}->{$x->{old_path}}; - if (!keys %{$r->{$x->{old_repo_id}}->{fetch}}) { - command_noisy(qw/config --unset/, - "$pfx.url"); - push @emptied, $x->{old_repo_id} - } - } - } - if (@emptied) { - my $file = $ENV{GIT_CONFIG} || "$ENV{GIT_DIR}/config"; - print STDERR <<EOF; -The following [svn-remote] sections in your config file ($file) are empty -and can be safely removed: -EOF - print STDERR "[svn-remote \"$_\"]\n" foreach @emptied; - } -} - -sub migration_check { - migrate_from_v0(); - migrate_from_v1(); - migrate_from_v2(); - minimize_connections() if $_minimize; -} - -package Git::IndexInfo; -use strict; -use warnings; -use Git qw/command_input_pipe command_close_pipe/; - -sub new { - my ($class) = @_; - my ($gui, $ctx) = command_input_pipe(qw/update-index -z --index-info/); - bless { gui => $gui, ctx => $ctx, nr => 0}, $class; -} - -sub remove { - my ($self, $path) = @_; - if (print { $self->{gui} } '0 ', 0 x 40, "\t", $path, "\0") { - return ++$self->{nr}; - } - undef; -} - -sub update { - my ($self, $mode, $hash, $path) = @_; - if (print { $self->{gui} } $mode, ' ', $hash, "\t", $path, "\0") { - return ++$self->{nr}; - } - undef; -} - -sub DESTROY { - my ($self) = @_; - command_close_pipe($self->{gui}, $self->{ctx}); -} - -package Git::SVN::GlobSpec; -use strict; -use warnings; - -sub new { - my ($class, $glob, $pattern_ok) = @_; - my $re = $glob; - $re =~ s!/+$!!g; # no need for trailing slashes - my (@left, @right, @patterns); - my $state = "left"; - my $die_msg = "Only one set of wildcard directories " . - "(e.g. '*' or '*/*/*') is supported: '$glob'\n"; - for my $part (split(m|/|, $glob)) { - if ($part =~ /\*/ && $part ne "*") { - die "Invalid pattern in '$glob': $part\n"; - } elsif ($pattern_ok && $part =~ /[{}]/ && - $part !~ /^\{[^{}]+\}/) { - die "Invalid pattern in '$glob': $part\n"; - } - if ($part eq "*") { - die $die_msg if $state eq "right"; - $state = "pattern"; - push(@patterns, "[^/]*"); - } elsif ($pattern_ok && $part =~ /^\{(.*)\}$/) { - die $die_msg if $state eq "right"; - $state = "pattern"; - my $p = quotemeta($1); - $p =~ s/\\,/|/g; - push(@patterns, "(?:$p)"); - } else { - if ($state eq "left") { - push(@left, $part); - } else { - push(@right, $part); - $state = "right"; - } - } - } - my $depth = @patterns; - if ($depth == 0) { - die "One '*' is needed in glob: '$glob'\n"; - } - my $left = join('/', @left); - my $right = join('/', @right); - $re = join('/', @patterns); - $re = join('\/', - grep(length, quotemeta($left), "($re)", quotemeta($right))); - my $left_re = qr/^\/\Q$left\E(\/|$)/; - bless { left => $left, right => $right, left_regex => $left_re, - regex => qr/$re/, glob => $glob, depth => $depth }, $class; -} - -sub full_path { - my ($self, $path) = @_; - return (length $self->{left} ? "$self->{left}/" : '') . - $path . (length $self->{right} ? "/$self->{right}" : ''); -} - __END__ Data structures: |