Merge branch 'tr/void-diff-setup-done'
[gitweb.git] / git-svn.perl
index 9269d80a6d9a300e27571ae8560f76849ba5f700..0d77ffb0b92b9e94454aeb94b434d9f86acd8a13 100755 (executable)
 $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::Utils qw(fatal can_compress);
+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 {
@@ -65,39 +108,6 @@ sub _req_svn {
        }
 }
 
-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 Git::SVN::Editor qw//;
-use Git::SVN::Fetcher qw//;
-use Git::SVN::Ra qw//;
-use Git::SVN::Prompt qw//;
-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 $package ( qw(Git::SVN::Migration Git::SVN::Log),
-                       __PACKAGE__) {
-                       *{"${package}::$_"} = \&{"Git::$_"};
-               }
-       }
-       Memoize::memoize 'Git::config';
-       Memoize::memoize 'Git::config_bool';
-}
-
-my ($SVN);
-
 $sha1 = qr/[a-f\d]{40}/;
 $sha1_short = qr/[a-f\d]{4,40}/;
 my ($_stdin, $_help, $_edit,
@@ -106,7 +116,7 @@ BEGIN
        $_version, $_fetch_all, $_no_rebase, $_fetch_parent,
        $_merge, $_strategy, $_preserve_merges, $_dry_run, $_local,
        $_prefix, $_no_checkout, $_url, $_verbose,
-       $_git_format, $_commit_url, $_tag, $_merge_info, $_interactive);
+       $_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 || '' }
@@ -270,7 +280,7 @@ BEGIN
                    { '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,
@@ -776,6 +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/);
@@ -903,6 +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};
@@ -942,6 +991,14 @@ sub cmd_dcommit {
                                        },
                                        mergeinfo => $_merge_info,
                                        svn_path => '');
+
+                       my $err_handler = $SVN::Error::handler;
+                       $SVN::Error::handler = sub {
+                               my $err = shift;
+                               dcommit_rebase(1, $current_head, $gs->refname,
+                                       $err);
+                       };
+
                        if (!Git::SVN::Editor->new(\%ed_opts)->apply_diff) {
                                print "No changes\n$d~1 == $d\n";
                        } elsif ($parents->{$d} && @{$parents->{$d}}) {
@@ -949,31 +1006,19 @@ sub cmd_dcommit {
                                                               $parents->{$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);
@@ -1018,6 +1063,7 @@ sub cmd_dcommit {
                                }
                                $parents = \%p;
                                $linear_refs = \@l;
+                               undef $last_rev;
                        }
                }
        }
@@ -1194,7 +1240,7 @@ sub cmd_show_ignore {
        my ($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 = $props->{'svn:ignore'} or return;
@@ -1210,7 +1256,7 @@ sub cmd_show_externals {
        my ($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 = $props->{'svn:externals'} or return;
@@ -1225,7 +1271,7 @@ sub cmd_create_ignore {
        my ($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;
@@ -1255,31 +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.
@@ -1293,7 +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)
@@ -1394,8 +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);
@@ -1429,24 +1450,6 @@ sub cmd_commit_diff {
        }
 }
 
-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] : ".");
@@ -1471,21 +1474,21 @@ 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";
@@ -1632,7 +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 ",
@@ -1649,7 +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 = '';
@@ -1660,18 +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+)/);
@@ -2038,730 +2043,6 @@ sub gc_directory {
        }
 }
 
-
-package Git::SVN::Log;
-use strict;
-use warnings;
-use Git::SVN::Utils qw(fatal);
-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: