Export matches_pack_name() and fix its return value
[gitweb.git] / git-svn.perl
index 03d5e2d979c48159643256634861162d34a470ce..d3c8cd0b8e3cfb97c6deb2453097c6f2e16e3bcf 100755 (executable)
@@ -77,11 +77,12 @@ BEGIN
                   \$Git::SVN::_repack_flags,
                %remote_opts );
 
-my ($_trunk, $_tags, $_branches);
+my ($_trunk, $_tags, $_branches, $_stdlayout);
 my %icv;
 my %init_opts = ( 'template=s' => \$_template, 'shared:s' => \$_shared,
                   'trunk|T=s' => \$_trunk, 'tags|t=s' => \$_tags,
                   'branches|b=s' => \$_branches, 'prefix=s' => \$_prefix,
+                  'stdlayout|s' => \$_stdlayout,
                   'minimize-url|m' => \$Git::SVN::_minimize_url,
                  'no-metadata' => sub { $icv{noMetadata} = 1 },
                  'use-svm-props' => sub { $icv{useSvmProps} = 1 },
@@ -292,7 +293,8 @@ sub init_subdir {
 sub cmd_clone {
        my ($url, $path) = @_;
        if (!defined $path &&
-           (defined $_trunk || defined $_branches || defined $_tags) &&
+           (defined $_trunk || defined $_branches || defined $_tags ||
+            defined $_stdlayout) &&
            $url !~ m#^[a-z\+]+://#) {
                $path = $url;
        }
@@ -302,6 +304,11 @@ sub cmd_clone {
 }
 
 sub cmd_init {
+       if (defined $_stdlayout) {
+               $_trunk = 'trunk' if (!defined $_trunk);
+               $_tags = 'tags' if (!defined $_tags);
+               $_branches = 'branches' if (!defined $_branches);
+       }
        if (defined $_trunk || defined $_branches || defined $_tags) {
                return cmd_multi_init(@_);
        }
@@ -370,20 +377,20 @@ sub cmd_dcommit {
        $head ||= 'HEAD';
        my @refs;
        my ($url, $rev, $uuid, $gs) = working_head_info($head, \@refs);
+       print "Committing to $url ...\n";
        unless ($gs) {
                die "Unable to determine upstream SVN information from ",
                    "$head history\n";
        }
-       my $c = $refs[-1];
        my $last_rev;
-       foreach my $d (@refs) {
-               if (!verify_ref("$d~1")) {
-                       fatal "Commit $d\n",
-                             "has no parent commit, and therefore ",
-                             "nothing to diff against.\n",
-                             "You should be working from a repository ",
-                             "originally created by git-svn\n";
-               }
+       my ($linear_refs, $parents) = linearize_history($gs, \@refs);
+       if ($_no_rebase && scalar(@$linear_refs) > 1) {
+               warn "Attempting to commit more than one change while ",
+                    "--no-rebase is enabled.\n",
+                    "If these changes depend on each other, re-running ",
+                    "without --no-rebase will be required."
+       }
+       foreach my $d (@$linear_refs) {
                unless (defined $last_rev) {
                        (undef, $last_rev, undef) = cmt_metadata("$d~1");
                        unless (defined $last_rev) {
@@ -394,6 +401,7 @@ sub cmd_dcommit {
                if ($_dry_run) {
                        print "diff-tree $d~1 $d\n";
                } else {
+                       my $cmt_rev;
                        my %ed_opts = ( r => $last_rev,
                                        log => get_commit_entry($d)->{log},
                                        ra => Git::SVN::Ra->new($gs->full_url),
@@ -401,39 +409,39 @@ sub cmd_dcommit {
                                        tree_b => $d,
                                        editor_cb => sub {
                                               print "Committed r$_[0]\n";
-                                              $last_rev = $_[0]; },
+                                              $cmt_rev = $_[0];
+                                       },
                                        svn_path => '');
                        if (!SVN::Git::Editor->new(\%ed_opts)->apply_diff) {
                                print "No changes\n$d~1 == $d\n";
+                       } elsif ($parents->{$d} && @{$parents->{$d}}) {
+                               $gs->{inject_parents_dcommit}->{$cmt_rev} =
+                                                              $parents->{$d};
                        }
+                       $_fetch_all ? $gs->fetch_all : $gs->fetch;
+                       next if $_no_rebase;
+
+                       # we always want to rebase against the current HEAD,
+                       # not any head that was passed to us
+                       my @diff = command('diff-tree', 'HEAD',
+                                          $gs->refname, '--');
+                       my @finish;
+                       if (@diff) {
+                               @finish = rebase_cmd();
+                               print STDERR "W: HEAD and ", $gs->refname,
+                                            " differ, using @finish:\n",
+                                            "@diff";
+                       } else {
+                               print "No changes between current HEAD and ",
+                                     $gs->refname,
+                                     "\nResetting to the latest ",
+                                     $gs->refname, "\n";
+                               @finish = qw/reset --mixed/;
+                       }
+                       command_noisy(@finish, $gs->refname);
+                       $last_rev = $cmt_rev;
                }
        }
-       return if $_dry_run;
-       unless ($gs) {
-               warn "Could not determine fetch information for $url\n",
-                    "Will not attempt to fetch and rebase commits.\n",
-                    "This probably means you have useSvmProps and should\n",
-                    "now resync your SVN::Mirror repository.\n";
-               return;
-       }
-       $_fetch_all ? $gs->fetch_all : $gs->fetch;
-       unless ($_no_rebase) {
-               # we always want to rebase against the current HEAD, not any
-               # head that was passed to us
-               my @diff = command('diff-tree', 'HEAD', $gs->refname, '--');
-               my @finish;
-               if (@diff) {
-                       @finish = rebase_cmd();
-                       print STDERR "W: HEAD and ", $gs->refname, " differ, ",
-                                    "using @finish:\n", "@diff";
-               } 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);
-       }
 }
 
 sub cmd_find_rev {
@@ -744,7 +752,7 @@ sub load_authors {
        my $log = $cmd eq 'log';
        while (<$authors>) {
                chomp;
-               next unless /^(\S+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
+               next unless /^(.+?|\(no author\))\s*=\s*(.+?)\s*<(.+)>\s*$/;
                my ($user, $name, $email) = ($1, $2, $3);
                if ($log) {
                        $Git::SVN::Log::rusers{"$name <$email>"} = $user;
@@ -803,7 +811,7 @@ sub cmt_metadata {
 
 sub working_head_info {
        my ($head, $refs) = @_;
-       my ($fh, $ctx) = command_output_pipe('log', $head);
+       my ($fh, $ctx) = command_output_pipe('log', '--no-color', $head);
        my $hash;
        my %max;
        while (<$fh>) {
@@ -831,6 +839,59 @@ sub working_head_info {
        (undef, undef, undef, undef);
 }
 
+sub read_commit_parents {
+       my ($parents, $c) = @_;
+       my ($fh, $ctx) = command_output_pipe(qw/cat-file commit/, $c);
+       while (<$fh>) {
+               chomp;
+               last if '';
+               /^parent ($sha1)/ or next;
+               push @{$parents->{$c}}, $1;
+       }
+       close $fh; # break the pipe
+}
+
+sub linearize_history {
+       my ($gs, $refs) = @_;
+       my %parents;
+       foreach my $c (@$refs) {
+               read_commit_parents(\%parents, $c);
+       }
+
+       my @linear_refs;
+       my %skip = ();
+       my $last_svn_commit = $gs->last_commit;
+       foreach my $c (reverse @$refs) {
+               next if $c eq $last_svn_commit;
+               last if $skip{$c};
+
+               unshift @linear_refs, $c;
+               $skip{$c} = 1;
+
+               # we only want the first parent to diff against for linear
+               # history, we save the rest to inject when we finalize the
+               # svn commit
+               my $fp_a = verify_ref("$c~1");
+               my $fp_b = shift @{$parents{$c}} if $parents{$c};
+               if (!$fp_a || !$fp_b) {
+                       die "Commit $c\n",
+                           "has no parent commit, and therefore ",
+                           "nothing to diff against.\n",
+                           "You should be working from a repository ",
+                           "originally created by git-svn\n";
+               }
+               if ($fp_a ne $fp_b) {
+                       die "$c~1 = $fp_a, however parsing commit $c ",
+                           "revealed that:\n$c~1 = $fp_b\nBUG!\n";
+               }
+
+               foreach my $p (@{$parents{$c}}) {
+                       $skip{$p} = 1;
+               }
+       }
+       (\@linear_refs, \%parents);
+}
+
 package Git::SVN;
 use strict;
 use warnings;
@@ -889,8 +950,8 @@ sub resolve_local_globs {
        foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) {
                next unless m#^refs/remotes/$ref->{regex}$#;
                my $p = $1;
-               my $pathname = $path->full_path($p);
-               my $refname = $ref->full_path($p);
+               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",
@@ -977,7 +1038,9 @@ sub read_all_remotes {
        my $r = {};
        foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
                if (m!^(.+)\.fetch=\s*(.*)\s*:\s*refs/remotes/(.+)\s*$!) {
-                       $r->{$1}->{fetch}->{$2} = $3;
+                       my ($remote, $local_ref, $remote_ref) = ($1, $2, $3);
+                       $local_ref =~ s{^/}{};
+                       $r->{$remote}->{fetch}->{$local_ref} = $remote_ref;
                } elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
                        $r->{$1}->{url} = $2;
                } elsif (m!^(.+)\.(branches|tags)=
@@ -1097,6 +1160,7 @@ sub init_remote_config {
        unless ($no_write) {
                command_noisy('config',
                              "svn-remote.$self->{repo_id}.url", $url);
+               $self->{path} =~ s{^/}{};
                command_noisy('config', '--add',
                              "svn-remote.$self->{repo_id}.fetch",
                              "$self->{path}:".$self->refname);
@@ -1187,7 +1251,40 @@ sub new {
        $self;
 }
 
-sub refname { "refs/remotes/$_[0]->{ref_id}" }
+sub refname {
+       my ($refname) = "refs/remotes/$_[0]->{ref_id}" ;
+
+       # It cannot end with a slash /, we'll throw up on this because
+       # SVN can't have directories with a slash in their name, either:
+       if ($refname =~ m{/$}) {
+               die "ref: '$refname' ends with a trailing slash, this is ",
+                   "not permitted by git nor Subversion\n";
+       }
+
+       # It cannot have ASCII control character space, tilde ~, caret ^,
+       # colon :, question-mark ?, asterisk *, space, or open bracket [
+       # anywhere.
+       #
+       # Additionally, % must be escaped because it is used for escaping
+       # and we want our escaped refname to be reversible
+       $refname =~ s{([ \%~\^:\?\*\[\t])}{uc sprintf('%%%02x',ord($1))}eg;
+
+       # no slash-separated component can begin with a dot .
+       # /.* becomes /%2E*
+       $refname =~ s{/\.}{/%2E}g;
+
+       # It cannot have two consecutive dots .. anywhere
+       # .. becomes %2E%2E
+       $refname =~ s{\.\.}{%2E%2E}g;
+
+       return $refname;
+}
+
+sub desanitize_refname {
+       my ($refname) = @_;
+       $refname =~ s{%(?:([0-9A-F]{2}))}{chr hex($1)}eg;
+       return $refname;
+}
 
 sub svm_uuid {
        my ($self) = @_;
@@ -1551,6 +1648,11 @@ sub get_commit_parents {
        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};
@@ -1974,7 +2076,7 @@ sub rebuild {
                return;
        }
        print "Rebuilding $db_path ...\n";
-       my ($log, $ctx) = command_output_pipe("log", $self->refname);
+       my ($log, $ctx) = command_output_pipe("log", '--no-color', $self->refname);
        my $latest;
        my $full_url = $self->full_url;
        remove_username($full_url);
@@ -2667,6 +2769,9 @@ sub repo_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);
 }
 
@@ -2948,6 +3053,7 @@ sub new {
              \&Git::SVN::Prompt::username, 2),
          ]);
        my $config = SVN::Core::config_get_config($config_dir);
+       $RA = undef;
        my $self = SVN::Ra->new(url => $url, auth => $baton,
                              config => $config,
                              pool => SVN::Pool->new,
@@ -3407,11 +3513,17 @@ sub log_use_color {
 sub git_svn_log_cmd {
        my ($r_min, $r_max, @args) = @_;
        my $head = 'HEAD';
+       my (@files, @log_opts);
        foreach my $x (@args) {
-               last if $x eq '--';
-               next unless ::verify_ref("$x^0");
-               $head = $x;
-               last;
+               if ($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);
@@ -3421,13 +3533,13 @@ sub git_svn_log_cmd {
        push @cmd, '-r' unless $non_recursive;
        push @cmd, qw/--raw --name-status/ if $verbose;
        push @cmd, '--color' if log_use_color();
-       return @cmd unless defined $r_max;
-       if ($r_max == $r_min) {
+       push @cmd, @log_opts;
+       if (defined $r_max && $r_max == $r_min) {
                push @cmd, '--max-count=1';
                if (my $c = $gs->rev_db_get($r_max)) {
                        push @cmd, $c;
                }
-       } else {
+       } elsif (defined $r_max) {
                my ($c_min, $c_max);
                $c_max = $gs->rev_db_get($r_max);
                $c_min = $gs->rev_db_get($r_min);
@@ -3443,7 +3555,7 @@ sub git_svn_log_cmd {
                        push @cmd, $c_min;
                }
        }
-       return @cmd;
+       return (@cmd, @files);
 }
 
 # adapted from pager.c
@@ -3608,7 +3720,7 @@ sub cmd_show_log {
        }
 
        config_pager();
-       @args = (git_svn_log_cmd($r_min, $r_max, @args), @args);
+       @args = git_svn_log_cmd($r_min, $r_max, @args);
        my $log = command_output_pipe(@args);
        run_pager();
        my (@k, $c, $d, $stat);