make the sample pre-commit hook script reject names with newlines, too

diff --git a/git-svn.perl b/git-svn.perl
index 34884b8fce37008ca05369dbd365573c7112ca21..757de82161e05b9d12c489efeff05c7fec341fe4 100755 (executable)
--- a/git-svn.perl
+++ b/git-svn.perl
@@ -1,6 +1,7 @@
 #!/usr/bin/env perl
 # Copyright (C) 2006, Eric Wong <normalperson@yhbt.net>
 # License: GPL v2 or later
+use 5.008;
 use warnings;
 use strict;
 use vars qw/   $AUTHOR $VERSION
@@ -1513,7 +1514,8 @@ sub cmt_sha2rev_batch {
 
 sub working_head_info {
        my ($head, $refs) = @_;
-       my @args = ('log', '--no-color', '--first-parent', '--pretty=medium');
+       my @args = qw/log --no-color --no-decorate --first-parent
+                     --pretty=medium/;
        my ($fh, $ctx) = command_output_pipe(@args, $head);
        my $hash;
        my %max;
@@ -2959,18 +2961,29 @@ sub other_gs {
        my $gs = Git::SVN->find_by_url($new_url, $url, $branch_from);
        unless ($gs) {
                my $ref_id = $old_ref_id;
-               $ref_id =~ s/\@\d+$//;
+               $ref_id =~ s/\@\d+-*$//;
                $ref_id .= "\@$r";
                # just grow a tail if we're not unique enough :x
                $ref_id .= '-' while find_ref($ref_id);
-               print STDERR "Initializing parent: $ref_id\n" unless $::_q > 1;
                my ($u, $p, $repo_id) = ($new_url, '', $ref_id);
                if ($u =~ s#^\Q$url\E(/|$)##) {
                        $p = $u;
                        $u = $url;
                        $repo_id = $self->{repo_id};
                }
-               $gs = Git::SVN->init($u, $p, $repo_id, $ref_id, 1);
+               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->full_url);
+                       $ref_id .= '-';
+               }
+               print STDERR "Initializing parent: $ref_id\n" unless $::_q > 1;
        }
        $gs
 }
@@ -3107,9 +3120,10 @@ sub _rev_list {
 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);
+               _rev_list("--no-merges", $tip, "--not", $base, @$parents);
        for my $range ( @ranges ) {
                delete @commits{_rev_list($range)};
        }
@@ -3285,6 +3299,7 @@ sub find_extra_svn_parents {
                # double check that there are no missing non-merge commits
                my (@incomplete) = check_cherry_pick(
                        $merge_base, $merge_tip,
+                       $parents,
                        @$ranges,
                       );