Show usage string for 'git get-tar-commit-id -h'
[gitweb.git] / git-svn.perl
index ad01e182df8abbeac7efa3db0d84d55ab1563e40..6a3b501d24ebaa50e297511ccf0b18e3bbd2bb16 100755 (executable)
@@ -5,7 +5,7 @@
 use strict;
 use vars qw/   $AUTHOR $VERSION
                $sha1 $sha1_short $_revision $_repository
-               $_q $_authors %users/;
+               $_q $_authors $_authors_prog %users/;
 $AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
 $VERSION = '@@GIT_VERSION@@';
 
 $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}) {
+       if (exists $ENV{GIT_SSH}) {
+               $ENV{SVN_SSH} = $ENV{GIT_SSH};
+               if ($^O eq 'msys') {
+                       $ENV{SVN_SSH} =~ s/\\/\\\\/g;
+               }
+       }
+}
 
 $Git::SVN::Log::TZ = $ENV{TZ};
 $ENV{TZ} = 'UTC';
@@ -31,6 +41,7 @@
 if ($SVN::Core::VERSION lt '1.1.0') {
        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';
@@ -39,6 +50,8 @@
 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;
@@ -47,7 +60,8 @@ 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_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__) {
@@ -61,38 +75,42 @@ BEGIN
 $sha1 = qr/[a-f\d]{40}/;
 $sha1_short = qr/[a-f\d]{4,40}/;
 my ($_stdin, $_help, $_edit,
-       $_message, $_file,
+       $_message, $_file, $_branch_dest,
        $_template, $_shared,
-       $_version, $_fetch_all, $_no_rebase,
+       $_version, $_fetch_all, $_no_rebase, $_fetch_parent,
        $_merge, $_strategy, $_dry_run, $_local,
        $_prefix, $_no_checkout, $_url, $_verbose,
        $_git_format, $_commit_url, $_tag);
 $Git::SVN::_follow_parent = 1;
+$_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 );
+                    'no-auth-cache' => \$Git::SVN::Prompt::_no_auth_cache,
+                    'ignore-paths=s' => \$SVN::Git::Fetcher::_ignore_regex );
 my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
                'authors-file|A=s' => \$_authors,
+               'authors-prog=s' => \$_authors_prog,
                'repack:i' => \$Git::SVN::_repack,
                'noMetadata' => \$Git::SVN::_no_metadata,
                'useSvmProps' => \$Git::SVN::_use_svm_props,
                'useSvnsyncProps' => \$Git::SVN::_use_svnsync_props,
                'log-window-size=i' => \$Git::SVN::Ra::_log_window_size,
                'no-checkout' => \$_no_checkout,
-               'quiet|q' => \$_q,
+               'quiet|q+' => \$_q,
                'repack-flags|repack-args|repack-opts=s' =>
                   \$Git::SVN::_repack_flags,
                'use-log-author' => \$Git::SVN::_use_log_author,
                'add-author-from' => \$Git::SVN::_add_author_from,
+               'localtime' => \$Git::SVN::_localtime,
                %remote_opts );
 
-my ($_trunk, $_tags, $_branches, $_stdlayout);
+my ($_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,
+                  '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,
+                  'minimize-url|m!' => \$Git::SVN::_minimize_url,
                  'no-metadata' => sub { $icv{noMetadata} = 1 },
                  'use-svm-props' => sub { $icv{useSvmProps} = 1 },
                  'use-svnsync-props' => sub { $icv{useSvnsyncProps} = 1 },
@@ -109,6 +127,7 @@ BEGIN
        fetch => [ \&cmd_fetch, "Download new revisions from SVN",
                        { 'revision|r=s' => \$_revision,
                          'fetch-all|all' => \$_fetch_all,
+                         'parent|p' => \$_fetch_parent,
                           %fc_opts } ],
        clone => [ \&cmd_clone, "Initialize and fetch revisions",
                        { 'revision|r=s' => \$_revision,
@@ -134,15 +153,17 @@ BEGIN
        branch => [ \&cmd_branch,
                    'Create a branch in the SVN repository',
                    { 'message|m=s' => \$_message,
+                     'destination|d=s' => \$_branch_dest,
                      'dry-run|n' => \$_dry_run,
                      'tag|t' => \$_tag } ],
        tag => [ sub { $_tag = 1; cmd_branch(@_) },
                 'Create a tag in the SVN repository',
                 { 'message|m=s' => \$_message,
+                  'destination|d=s' => \$_branch_dest,
                   'dry-run|n' => \$_dry_run } ],
        'set-tree' => [ \&cmd_set_tree,
                        "Set an SVN repository to a git tree-ish",
-                       { 'stdin|' => \$_stdin, %cmt_opts, %fc_opts, } ],
+                       { 'stdin' => \$_stdin, %cmt_opts, %fc_opts, } ],
        'create-ignore' => [ \&cmd_create_ignore,
                             'Create a .gitignore per svn:ignore',
                             { 'revision|r=i' => \$_revision
@@ -204,6 +225,14 @@ BEGIN
        'blame' => [ \&Git::SVN::Log::cmd_blame,
                    "Show what revision and author last modified each line of a file",
                    { 'git-format' => \$_git_format } ],
+       'reset' => [ \&cmd_reset,
+                    "Undo fetches back to the specified SVN revision",
+                    { 'revision|r=s' => \$_revision,
+                      'parent|p' => \$_fetch_parent } ],
+       'gc' => [ \&cmd_gc,
+                 "Compress unhandled.log files in .git/svn and remove " .
+                 "index files in .git/svn",
+               {} ],
 );
 
 my $cmd;
@@ -212,6 +241,9 @@ BEGIN
                $cmd = $ARGV[$i];
                splice @ARGV, $i, 1;
                last;
+       } elsif ($ARGV[$i] eq 'help') {
+               $cmd = $ARGV[$i+1];
+               usage(0);
        }
 };
 
@@ -258,6 +290,9 @@ BEGIN
 version() if $_version;
 usage(1) unless defined $cmd;
 load_authors() if $_authors;
+if (defined $_authors_prog) {
+       $_authors_prog = "'" . File::Spec->rel2abs($_authors_prog) . "'";
+}
 
 unless ($cmd =~ /^(?:clone|init|multi-init|commit-diff)$/) {
        Git::SVN::Migration::migration_check();
@@ -323,6 +358,7 @@ sub do_git_init_db {
                command_noisy(@init_db);
                $_repository = Git->repository(Repository => ".git");
        }
+       command_noisy('config', 'core.autocrlf', 'false');
        my $set;
        my $pfx = "svn-remote.$Git::SVN::default_repo_id";
        foreach my $i (keys %icv) {
@@ -331,6 +367,9 @@ sub do_git_init_db {
                command_noisy('config', "$pfx.$i", $icv{$i});
                $set = $i;
        }
+       my $ignore_regex = \$SVN::Git::Fetcher::_ignore_regex;
+       command_noisy('config', "$pfx.ignore-paths", $$ignore_regex)
+               if defined $$ignore_regex;
 }
 
 sub init_subdir {
@@ -344,7 +383,7 @@ sub init_subdir {
 sub cmd_clone {
        my ($url, $path) = @_;
        if (!defined $path &&
-           (defined $_trunk || defined $_branches || defined $_tags ||
+           (defined $_trunk || @_branches || @_tags ||
             defined $_stdlayout) &&
            $url !~ m#^[a-z\+]+://#) {
                $path = $url;
@@ -352,22 +391,28 @@ sub cmd_clone {
        $path = basename($url) if !defined $path || !length $path;
        cmd_init($url, $path);
        Git::SVN::fetch_all($Git::SVN::default_repo_id);
+       command_oneline('config', 'svn.authorsfile', $_authors) if $_authors;
 }
 
 sub cmd_init {
        if (defined $_stdlayout) {
                $_trunk = 'trunk' if (!defined $_trunk);
-               $_tags = 'tags' if (!defined $_tags);
-               $_branches = 'branches' if (!defined $_branches);
+               @_tags = 'tags' if (! @_tags);
+               @_branches = 'branches' if (! @_branches);
        }
-       if (defined $_trunk || defined $_branches || defined $_tags) {
+       if (defined $_trunk || @_branches || @_tags) {
                return cmd_multi_init(@_);
        }
        my $url = shift or die "SVN repository location required ",
                               "as a command-line argument\n";
+       $url = canonicalize_url($url);
        init_subdir(@_);
        do_git_init_db();
 
+       if ($Git::SVN::_minimize_url eq 'unset') {
+               $Git::SVN::_minimize_url = 0;
+       }
+
        Git::SVN->init($url);
 }
 
@@ -378,12 +423,21 @@ sub cmd_fetch {
        }
        my ($remote) = @_;
        if (@_ > 1) {
-               die "Usage: $0 fetch [--all] [svn-remote]\n";
+               die "Usage: $0 fetch [--all] [--parent] [svn-remote]\n";
        }
-       $remote ||= $Git::SVN::default_repo_id;
-       if ($_fetch_all) {
+       if ($_fetch_parent) {
+               my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
+               unless ($gs) {
+                       die "Unable to determine upstream SVN information from ",
+                           "working tree history\n";
+               }
+               # just fetch, don't checkout.
+               $_no_checkout = 'true';
+               $_fetch_all ? $gs->fetch_all : $gs->fetch;
+       } elsif ($_fetch_all) {
                cmd_multi_fetch();
        } else {
+               $remote ||= $Git::SVN::default_repo_id;
                Git::SVN::fetch_all($remote, Git::SVN::read_all_remotes());
        }
 }
@@ -430,13 +484,37 @@ sub cmd_dcommit {
                'Cannot dcommit with a dirty index.  Commit your changes first, '
                . "or stash them with `git stash'.\n";
        $head ||= 'HEAD';
+
+       my $old_head;
+       if ($head ne 'HEAD') {
+               $old_head = eval {
+                       command_oneline([qw/symbolic-ref -q HEAD/])
+               };
+               if ($old_head) {
+                       $old_head =~ s{^refs/heads/}{};
+               } else {
+                       $old_head = eval { command_oneline(qw/rev-parse HEAD/) };
+               }
+               command(['checkout', $head], STDERR => 0);
+       }
+
        my @refs;
-       my ($url, $rev, $uuid, $gs) = working_head_info($head, \@refs);
+       my ($url, $rev, $uuid, $gs) = working_head_info('HEAD', \@refs);
        unless ($gs) {
                die "Unable to determine upstream SVN information from ",
                    "$head history.\nPerhaps the repository is empty.";
        }
-       $url = defined $_commit_url ? $_commit_url : $gs->full_url;
+
+       if (defined $_commit_url) {
+               $url = $_commit_url;
+       } else {
+               $url = eval { command_oneline('config', '--get',
+                             "svn-remote.$gs->{repo_id}.commiturl") };
+               if (!$url) {
+                       $url = $gs->full_url
+               }
+       }
+
        my $last_rev = $_revision if defined $_revision;
        if ($url) {
                print "Committing to $url ...\n";
@@ -507,7 +585,7 @@ sub cmd_dcommit {
                        if (@diff) {
                                @refs = ();
                                my ($url_, $rev_, $uuid_, $gs_) =
-                                             working_head_info($head, \@refs);
+                                             working_head_info('HEAD', \@refs);
                                my ($linear_refs_, $parents_) =
                                              linearize_history($gs_, \@refs);
                                if (scalar(@$linear_refs) !=
@@ -525,8 +603,15 @@ sub cmd_dcommit {
                                          "\nBefore dcommitting";
                                }
                                if ($url_ ne $expect_url) {
-                                       fatal "URL mismatch after rebase: ",
-                                             "$url_ != $expect_url";
+                                       if ($url_ eq $gs->metadata_url) {
+                                               print
+                                                 "Accepting rewritten URL:",
+                                                 " $url_\n";
+                                       } else {
+                                               fatal
+                                                 "URL mismatch after rebase:",
+                                                 " $url_ != $expect_url";
+                                       }
                                }
                                if ($uuid_ ne $uuid) {
                                        fatal "uuid mismatch after rebase: ",
@@ -545,6 +630,22 @@ sub cmd_dcommit {
                        }
                }
        }
+
+       if ($old_head) {
+               my $new_head = command_oneline(qw/rev-parse HEAD/);
+               my $new_is_symbolic = eval {
+                       command_oneline(qw/symbolic-ref -q HEAD/);
+               };
+               if ($new_is_symbolic) {
+                       print "dcommitted the branch ", $head, "\n";
+               } else {
+                       print "dcommitted on a detached HEAD because you gave ",
+                             "a revision argument.\n",
+                             "The rewritten commit is: ", $new_head, "\n";
+               }
+               command(['checkout', $old_head], STDERR => 0);
+       }
+
        unlink $gs->{index};
 }
 
@@ -559,7 +660,46 @@ sub cmd_branch {
        my ($src, $rev, undef, $gs) = working_head_info($head);
 
        my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
-       my $glob = $remote->{ $_tag ? 'tags' : 'branches' };
+       my $allglobs = $remote->{ $_tag ? 'tags' : 'branches' };
+       my $glob;
+       if ($#{$allglobs} == 0) {
+               $glob = $allglobs->[0];
+       } else {
+               unless(defined $_branch_dest) {
+                       die "Multiple ",
+                           $_tag ? "tag" : "branch",
+                           " paths defined for Subversion repository.\n",
+                           "You must specify where you want to create the ",
+                           $_tag ? "tag" : "branch",
+                           " with the --destination argument.\n";
+               }
+               foreach my $g (@{$allglobs}) {
+                       # SVN::Git::Editor could probably be moved to Git.pm..
+                       my $re = SVN::Git::Editor::glob2pat($g->{path}->{left});
+                       if ($_branch_dest =~ /$re/) {
+                               $glob = $g;
+                               last;
+                       }
+               }
+               unless (defined $glob) {
+                       my $dest_re = qr/\b\Q$_branch_dest\E\b/;
+                       foreach my $g (@{$allglobs}) {
+                               $g->{path}->{left} =~ /$dest_re/ or next;
+                               if (defined $glob) {
+                                       die "Ambiguous destination: ",
+                                           $_branch_dest, "\nmatches both '",
+                                           $glob->{path}->{left}, "' and '",
+                                           $g->{path}->{left}, "'\n";
+                               }
+                               $glob = $g;
+                       }
+                       unless (defined $glob) {
+                               die "Unknown ",
+                                   $_tag ? "tag" : "branch",
+                                   " destination $_branch_dest\n";
+                       }
+               }
+       }
        my ($lft, $rgt) = @{ $glob->{path} }{qw/left right/};
        my $dst = join '/', $remote->{url}, $lft, $branch_name, ($rgt || ());
 
@@ -640,6 +780,7 @@ sub cmd_show_ignore {
                print STDOUT "\n# $path\n";
                my $s = $props->{'svn:ignore'} or return;
                $s =~ s/[\r\n]+/\n/g;
+               $s =~ s/^\n+//;
                chomp $s;
                $s =~ s#^#$path#gm;
                print STDOUT "$s\n";
@@ -668,11 +809,16 @@ sub cmd_create_ignore {
        $gs->prop_walk($gs->{path}, $r, sub {
                my ($gs, $path, $props) = @_;
                # $path is of the form /path/to/dir/
-               my $ignore = '.' . $path . '.gitignore';
+               $path = '.' . $path;
+               # SVN can have attributes on empty directories,
+               # which git won't track
+               mkpath([$path]) unless -d $path;
+               my $ignore = $path . '.gitignore';
                my $s = $props->{'svn:ignore'} or return;
                open(GITIGNORE, '>', $ignore)
                  or fatal("Failed to open `$ignore' for writing: $!");
                $s =~ s/[\r\n]+/\n/g;
+               $s =~ s/^\n+//;
                chomp $s;
                # Prefix all patterns so that the ignore doesn't apply
                # to sub-directories.
@@ -703,6 +849,12 @@ sub canonicalize_path {
        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.
@@ -762,22 +914,18 @@ sub cmd_proplist {
 
 sub cmd_multi_init {
        my $url = shift;
-       unless (defined $_trunk || defined $_branches || defined $_tags) {
+       unless (defined $_trunk || @_branches || @_tags) {
                usage(1);
        }
 
-       # there are currently some bugs that prevent multi-init/multi-fetch
-       # setups from working well without this.
-       $Git::SVN::_minimize_url = 1;
-
        $_prefix = '' unless defined $_prefix;
        if (defined $url) {
-               $url =~ s#/+$##;
+               $url = canonicalize_url($url);
                init_subdir(@_);
        }
        do_git_init_db();
        if (defined $_trunk) {
-               my $trunk_ref = $_prefix . 'trunk';
+               my $trunk_ref = 'refs/remotes/' . $_prefix . 'trunk';
                # try both old-style and new-style lookups:
                my $gs_trunk = eval { Git::SVN->new($trunk_ref) };
                unless ($gs_trunk) {
@@ -787,10 +935,14 @@ sub cmd_multi_init {
                                                   undef, $trunk_ref);
                }
        }
-       return unless defined $_branches || defined $_tags;
+       return unless @_branches || @_tags;
        my $ra = $url ? Git::SVN::Ra->new($url) : undef;
-       complete_url_ls_init($ra, $_branches, '--branches/-b', $_prefix);
-       complete_url_ls_init($ra, $_tags, '--tags/-t', $_prefix . 'tags/');
+       foreach my $path (@_branches) {
+               complete_url_ls_init($ra, $path, '--branches/-b', $_prefix);
+       }
+       foreach my $path (@_tags) {
+               complete_url_ls_init($ra, $path, '--tags/-t', $_prefix.'tags/');
+       }
 }
 
 sub cmd_multi_fetch {
@@ -911,7 +1063,8 @@ sub cmd_info {
        if ($@) {
                $result .= "Repository Root: (offline)\n";
        }
-       $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A";
+       $result .= "Repository UUID: $uuid\n" unless $diff_status eq "A" &&
+               ($SVN::Core::VERSION le '1.5.4' || $file_type ne "dir");
        $result .= "Revision: " . ($diff_status eq "A" ? 0 : $rev) . "\n";
 
        $result .= "Node Kind: " .
@@ -982,6 +1135,28 @@ sub cmd_info {
        print $result, "\n";
 }
 
+sub cmd_reset {
+       my $target = shift || $_revision or die "SVN revision required\n";
+       $target = $1 if $target =~ /^r(\d+)$/;
+       $target =~ /^\d+$/ or die "Numeric SVN revision expected\n";
+       my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
+       unless ($gs) {
+               die "Unable to determine upstream SVN information from ".
+                   "history\n";
+       }
+       my ($r, $c) = $gs->find_rev_before($target, not $_fetch_parent);
+       $gs->rev_map_set($r, $c, 'reset', $uuid);
+       print "r$r = $c ($gs->{ref_id})\n";
+}
+
+sub cmd_gc {
+       if (!$can_compress) {
+               warn "Compress::Zlib could not be found; unhandled.log " .
+                    "files will not be compressed.\n";
+       }
+       find({ wanted => \&gc_directory, no_chdir => 1}, "$ENV{GIT_DIR}/svn");
+}
+
 ########################### utility functions #########################
 
 sub rebase_cmd {
@@ -997,6 +1172,17 @@ sub post_fetch_checkout {
        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}};
+       my $fetch = $remote->{fetch};
+       if ($fetch) {
+               foreach my $p (keys %$fetch) {
+                       basename($fetch->{$p}) eq 'trunk' or next;
+                       $gs = Git::SVN->new($fetch->{$p}, $gs->{repo_id}, $p);
+                       last;
+               }
+       }
+
        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'));
@@ -1051,7 +1237,8 @@ sub complete_url_ls_init {
                    "wanted to set to: $gs->{url}\n";
        }
        command_oneline('config', $k, $gs->{url}) unless $orig_url;
-       my $remote_path = "$ra->{svn_path}/$repo_path";
+       my $remote_path = "$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 $remote_path !~ /\*/;
@@ -1060,6 +1247,7 @@ sub complete_url_ls_init {
                die "--prefix='$pfx' must have a trailing slash '/'\n";
        }
        command_noisy('config',
+                     '--add',
                      "svn-remote.$gs->{repo_id}.$n",
                      "$remote_path:refs/remotes/$pfx*" .
                        ('/*' x (($remote_path =~ tr/*/*/) - 1)) );
@@ -1139,16 +1327,27 @@ sub get_commit_entry {
        }
        rename $commit_editmsg, $commit_msg or croak $!;
        {
+               require Encode;
                # SVN requires messages to be UTF-8 when entering the repo
                local $/;
                open $log_fh, '<', $commit_msg or croak $!;
                binmode $log_fh;
                chomp($log_entry{log} = <$log_fh>);
 
-               if (my $enc = Git::config('i18n.commitencoding')) {
-                       require Encode;
-                       Encode::from_to($log_entry{log}, $enc, 'UTF-8');
+               my $enc = Git::config('i18n.commitencoding') || 'UTF-8';
+               my $msg = $log_entry{log};
+
+               eval { $msg = Encode::decode($enc, $msg, 1) };
+               if ($@) {
+                       die "Could not decode as $enc:\n", $msg,
+                           "\nPerhaps you need to set i18n.commitencoding\n";
                }
+
+               eval { $msg = Encode::encode('UTF-8', $msg, 1) };
+               die "Could not encode as UTF-8:\n$msg\n" if $@;
+
+               $log_entry{log} = $msg;
+
                close $log_fh or croak $!;
        }
        unlink $commit_msg;
@@ -1222,11 +1421,11 @@ sub read_repo_config {
 sub extract_metadata {
        my $id = shift or return (undef, undef, undef);
        my ($url, $rev, $uuid) = ($id =~ /^\s*git-svn-id:\s+(.*)\@(\d+)
-                                                       \s([a-f\d\-]+)$/x);
+                                                       \s([a-f\d\-]+)$/ix);
        if (!defined $rev || !$uuid || !$url) {
                # some of the original repositories I made had
                # identifiers like this:
-               ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/);
+               ($rev, $uuid) = ($id =~/^\s*git-svn-id:\s(\d+)\@([a-f\d\-]+)/i);
        }
        return ($url, $rev, $uuid);
 }
@@ -1236,6 +1435,40 @@ sub cmt_metadata {
                command(qw/cat-file commit/, shift)))[-1]);
 }
 
+sub cmt_sha2rev_batch {
+       my %s2r;
+       my ($pid, $in, $out, $ctx) = command_bidi_pipe(qw/cat-file --batch/);
+       my $list = shift;
+
+       foreach my $sha (@{$list}) {
+               my $first = 1;
+               my $size = 0;
+               print $out $sha, "\n";
+
+               while (my $line = <$in>) {
+                       if ($first && $line =~ /^[[:xdigit:]]{40}\smissing$/) {
+                               last;
+                       } elsif ($first &&
+                              $line =~ /^[[:xdigit:]]{40}\scommit\s(\d+)$/) {
+                               $first = 0;
+                               $size = $1;
+                               next;
+                       } elsif ($line =~ /^(git-svn-id: )/) {
+                               my (undef, $rev, undef) =
+                                                     extract_metadata($line);
+                               $s2r{$sha} = $rev;
+                       }
+
+                       $size -= length($line);
+                       last if ($size == 0);
+               }
+       }
+
+       command_close_bidi_pipe($pid, $in, $out, $ctx);
+
+       return \%s2r;
+}
+
 sub working_head_info {
        my ($head, $refs) = @_;
        my @args = ('log', '--no-color', '--first-parent', '--pretty=medium');
@@ -1356,6 +1589,25 @@ sub md5sum {
        return $md5->hexdigest();
 }
 
+sub gc_directory {
+       if ($can_compress && -f $_ && basename($_) eq "unhandled.log") {
+               my $out_filename = $_ . ".gz";
+               open my $in_fh, "<", $_ or die "Unable to open $_: $!\n";
+               binmode $in_fh;
+               my $gz = Compress::Zlib::gzopen($out_filename, "ab") or
+                               die "Unable to open $out_filename: $!\n";
+
+               my $res;
+               while ($res = sysread($in_fh, my $str, 1024)) {
+                       $gz->gzwrite($str) or
+                               die "Unable to write: ".$gz->gzerror()."!\n";
+               }
+               unlink $_ or die "unlink $File::Find::name: $!\n";
+       } elsif (-f $_ && basename($_) eq "index") {
+               unlink $_ or die "unlink $_: $!\n";
+       }
+}
+
 package Git::SVN;
 use strict;
 use warnings;
@@ -1364,7 +1616,7 @@ package Git::SVN;
 use vars qw/$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/;
+           $_use_log_author $_add_author_from $_localtime/;
 use Carp qw/croak/;
 use File::Path qw/mkpath/;
 use File::Copy qw/copy/;
@@ -1419,23 +1671,23 @@ sub resolve_local_globs {
        return unless defined $glob_spec;
        my $ref = $glob_spec->{ref};
        my $path = $glob_spec->{path};
-       foreach (command(qw#for-each-ref --format=%(refname) refs/remotes#)) {
-               next unless m#^refs/remotes/$ref->{regex}$#;
+       foreach (command(qw#for-each-ref --format=%(refname) refs/#)) {
+               next unless m#^$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 $refname) {
                                die "Refspec conflict:\n",
-                                   "existing: refs/remotes/$existing\n",
-                                   " globbed: refs/remotes/$refname\n";
+                                   "existing: $existing\n",
+                                   " globbed: $refname\n";
                        }
-                       my $u = (::cmt_metadata("refs/remotes/$refname"))[0];
+                       my $u = (::cmt_metadata("$refname"))[0];
                        $u =~ s!^\Q$url\E(/|$)!! or die
-                         "refs/remotes/$refname: '$url' not found in '$u'\n";
+                         "$refname: '$url' not found in '$u'\n";
                        if ($pathname ne $u) {
                                warn "W: Refspec glob conflict ",
-                                    "(ref: refs/remotes/$refname):\n",
+                                    "(ref: $refname):\n",
                                     "expected path: $pathname\n",
                                     "    real path: $u\n",
                                     "Continuing ahead with $u\n";
@@ -1476,12 +1728,14 @@ sub fetch_all {
        my $ra = Git::SVN::Ra->new($url);
        my $uuid = $ra->get_uuid;
        my $head = $ra->get_latest_revnum;
+       $ra->get_log("", $head, 0, 1, 0, 1, sub { $head = $_[1] });
        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};
+               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)) {
@@ -1511,32 +1765,35 @@ sub read_all_remotes {
        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 $svn_refspec = qr{\s*(.*?)\s*:\s*(.+?)\s*};
        foreach (grep { s/^svn-remote\.// } command(qw/config -l/)) {
-               if (m!^(.+)\.fetch=\s*(.*)\s*:\s*(.+)\s*$!) {
-                       my ($remote, $local_ref, $_remote_ref) = ($1, $2, $3);
-                       die("svn-remote.$remote: remote ref '$_remote_ref' "
-                           . "must start with 'refs/remotes/'\n")
-                               unless $_remote_ref =~ m{^refs/remotes/(.+)};
-                       my $remote_ref = $1;
-                       $local_ref =~ s{^/}{};
+               if (m!^(.+)\.fetch=$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/};
                        $r->{$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} = $2;
-               } elsif (m!^(.+)\.(branches|tags)=
-                          (.*):refs/remotes/(.+)\s*$/!x) {
-                       my ($p, $g) = ($3, $4);
-                       my $rs = $r->{$1}->{$2} = {
-                                         t => $2,
-                                         remote => $1,
-                                         path => Git::SVN::GlobSpec->new($p),
-                                         ref => Git::SVN::GlobSpec->new($g) };
+               } elsif (m!^(.+)\.(branches|tags)=$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/};
+                       my $rs = {
+                           t => $t,
+                           remote => $remote,
+                           path => Git::SVN::GlobSpec->new($local_ref),
+                           ref => Git::SVN::GlobSpec->new($remote_ref) };
                        if (length($rs->{ref}->{right}) != 0) {
                                die "The '*' glob character must be the last ",
-                                   "character of '$g'\n";
+                                   "character of '$remote_ref'\n";
                        }
+                       push @{ $r->{$remote}->{$t} }, $rs;
                }
        }
 
@@ -1644,14 +1901,15 @@ sub init_remote_config {
                }
        }
        my ($xrepo_id, $xpath) = find_ref($self->refname);
-       if (defined $xpath) {
+       if (!$no_write && defined $xpath) {
                die "svn-remote.$xrepo_id.fetch already set to track ",
-                   "$xpath:refs/remotes/", $self->refname, "\n";
+                   "$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);
@@ -1676,9 +1934,10 @@ sub find_by_url { # repos_root and, path are optional
                next if defined $repos_root && $repos_root ne $u;
 
                my $fetch = $remotes->{$repo_id}->{fetch} || {};
-               foreach (qw/branches tags/) {
-                       resolve_local_globs($u, $fetch,
-                                           $remotes->{$repo_id}->{$_});
+               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});
@@ -1690,6 +1949,7 @@ sub find_by_url { # repos_root and, path are optional
                        my $prefix = '';
                        if ($rwr) {
                                $z = $rwr;
+                               remove_username($z);
                        } elsif (defined $svm) {
                                $z = $svm->{source};
                                $prefix = $svm->{replace};
@@ -1719,7 +1979,7 @@ sub find_ref {
        my ($ref_id) = @_;
        foreach (command(qw/config -l/)) {
                next unless m!^svn-remote\.(.+)\.fetch=
-                             \s*(.*)\s*:\s*refs/remotes/(.+)\s*$!x;
+                             \s*(.*?)\s*:\s*(.+?)\s*$!x;
                my ($repo_id, $path, $ref) = ($1, $2, $3);
                if ($ref eq $ref_id) {
                        $path = '' if ($path =~ m#^\./?#);
@@ -1736,16 +1996,16 @@ sub new {
                if (!defined $repo_id) {
                        die "Could not find a \"svn-remote.*.fetch\" key ",
                            "in the repository configuration matching: ",
-                           "refs/remotes/$ref_id\n";
+                           "$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",
-                                           ":refs/remotes/$ref_id\$") or
+                                           ":$ref_id\$") or
                     die "Failed to read \"svn-remote.$repo_id.fetch\" ",
-                        "\":refs/remotes/$ref_id\$\" in config\n";
+                        "\":$ref_id\$\" in config\n";
                ($self->{path}, undef) = split(/\s*:\s*/, $fetch);
        }
        $self->{url} = command_oneline('config', '--get',
@@ -1756,7 +2016,7 @@ sub new {
 }
 
 sub refname {
-       my ($refname) = "refs/remotes/$_[0]->{ref_id}" ;
+       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:
@@ -1835,7 +2095,7 @@ sub _set_svm_vars {
 
                chomp($src, $uuid);
 
-               $uuid =~ m{^[0-9a-f\-]{30,}$}
+               $uuid =~ m{^[0-9a-f\-]{30,}$}i
                    or die "doesn't look right - svm:uuid is '$uuid'\n";
 
                # the '!' is used to mark the repos_root!/relative/path
@@ -1921,7 +2181,7 @@ sub svnsync {
                   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,})$}) or
+               ($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 => $uuid }
@@ -1939,7 +2199,7 @@ sub svnsync {
                   die "doesn't look right - svn:sync-from-url is '$url'\n";
 
        my $uuid = $rp->{'svn:sync-from-uuid'} or die $err . "uuid\n";
-       ($uuid) = ($uuid =~ m{^([0-9a-f\-]{30,})$}) or
+       ($uuid) = ($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}";
@@ -1955,7 +2215,7 @@ sub ra_uuid {
        unless ($self->{ra_uuid}) {
                my $key = "svn-remote.$self->{repo_id}.uuid";
                my $uuid = eval { tmp_config('--get', $key) };
-               if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/) {
+               if (!$@ && $uuid && $uuid =~ /^([a-f\d\-]{30,})$/i) {
                        $self->{ra_uuid} = $uuid;
                } else {
                        die "ra_uuid called without URL\n" unless $self->{url};
@@ -1998,16 +2258,6 @@ sub ra {
        $ra;
 }
 
-sub rel_path {
-       my ($self) = @_;
-       my $repos_root = $self->ra->{repos_root};
-       return $self->{path} if ($self->{url} eq $repos_root);
-       my $url = $self->{url} .
-                 (length $self->{path} ? "/$self->{path}" : $self->{path});
-       $url =~ s!^\Q$repos_root\E(?:/+|$)!!g;
-       $url;
-}
-
 # prop_walk(PATH, REV, SUB)
 # -------------------------
 # Recursively traverse PATH at revision REV and invoke SUB for each
@@ -2313,13 +2563,13 @@ sub do_git_commit {
 
        $self->{last_rev} = $log_entry->{revision};
        $self->{last_commit} = $commit;
-       print "r$log_entry->{revision}";
+       print "r$log_entry->{revision}" unless $::_q > 1;
        if (defined $log_entry->{svm_revision}) {
-                print " (\@$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";
+       print " = $commit ($self->{ref_id})\n" unless $::_q > 1;
        if (--$_gc_nr == 0) {
                $_gc_nr = $_gc_period;
                gc();
@@ -2356,15 +2606,14 @@ sub find_parent_branch {
        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 {
-                                  $paths =
-                                     Git::SVN::Ra::dup_changed_paths($_[0]) });
+               $self->ra->get_log([$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->rel_path;
+       my @b_path_components = split m#/#, $self->{path};
        my @a_path_components;
        my $i;
        while (@b_path_components) {
@@ -2382,26 +2631,13 @@ sub find_parent_branch {
        my $r = $i->{copyfrom_rev};
        my $repos_root = $self->ra->{repos_root};
        my $url = $self->ra->{url};
-       my $new_url = $repos_root . $branch_from;
+       my $new_url = $url . $branch_from;
        print STDERR  "Found possible branch point: ",
-                     "$new_url => ", $self->full_url, ", $r\n";
+                     "$new_url => ", $self->full_url, ", $r\n"
+                     unless $::_q > 1;
        $branch_from =~ s#^/##;
-       my $gs = Git::SVN->find_by_url($new_url, $repos_root, $branch_from);
-       unless ($gs) {
-               my $ref_id = $self->{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);
-               print STDERR "Initializing parent: $ref_id\n";
-               my ($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);
-       }
+       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, $head);
@@ -2419,16 +2655,19 @@ sub find_parent_branch {
                ($r0, $parent) = $gs->find_rev_before($r, 1);
        }
        if (defined $r0 && defined $parent) {
-               print STDERR "Found branch parent: ($self->{ref_id}) $parent\n";
+               print STDERR "Found branch parent: ($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";
+                       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);
+                       $ed = SVN::Git::Fetcher->new($self, $gs->{path});
                        $gs->ra->gs_do_switch($r0, $rev, $gs,
                                              $self->full_url, $ed)
                          or die "SVN connection failed somewhere...\n";
@@ -2437,18 +2676,20 @@ sub find_parent_branch {
                        print STDERR "Trees match:\n",
                                     "  $new_url\@$r0\n",
                                     "  ${\$self->full_url}\@$rev\n",
-                                    "Following parent with no changes\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";
+                       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";
+               print STDERR "Successfully followed parent\n" unless $::_q > 1;
                return $self->make_log_entry($rev, [$parent], $ed);
        }
        return undef;
@@ -2526,32 +2767,268 @@ sub get_untracked {
        \@out;
 }
 
+# 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$/x) or
+                                           (\d\d)\:(\d\d)\:(\d\d)\.\d*Z$/x) or
                                         croak "Unable to parse date: $date\n";
-       "+0000 $Y-$m-$d $H:$M:$S";
+       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 =
+                   POSIX::strftime('%Z', $S, $M, $H, $d, $m - 1, $Y - 1900);
+
+               # 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);
+               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);
+       }
+       $gs
+}
+
+sub call_authors_prog {
+       my ($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)';
-       } elsif (defined $::_authors && ! defined $::users{$author}) {
-               die "Author: $author not defined in $::_authors file\n";
+       }
+       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->rewrite_root || $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, $commit;
+                       }
+               }
+       }
+       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, $parent;
+               }
+       }
+}
+
+# note: this function should only be called if the various dirprops
+# have actually changed
+sub find_extra_svn_parents {
+       my ($self, $ed, $mergeinfo, $parents) = @_;
+       # aha!  svk:merge property changed...
+
+       # 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 @merged_commit_ranges;
+       my $url = $self->rewrite_root || $self->{url};
+       for my $merge ( @merges ) {
+               my ($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";
+                       next;
+               }
+               my @ranges = split ",", $revs;
+               my ($tip, $tip_commit);
+               # find the tip
+               for my $range ( @ranges ) {
+                       my ($bottom, $top) = split "-", $range;
+                       $top ||= $bottom;
+                       my $bottom_commit =
+                               $gs->rev_map_get($bottom, $self->ra_uuid) ||
+                               $gs->rev_map_get($bottom+1, $self->ra_uuid);
+                       my $top_commit =
+                               $gs->rev_map_get($top, $self->ra_uuid);
+
+                       unless ($top_commit and $bottom_commit) {
+                               warn "W:unknown path/rev in svn:mergeinfo "
+                                       ."dirprop: $source:$range\n";
+                               next;
+                       }
+
+                       push @merged_commit_ranges,
+                               "$bottom_commit..$top_commit";
+
+                       if ( !defined $tip or $top > $tip ) {
+                               $tip = $top;
+                               $tip_commit = $top_commit;
+                       }
+               }
+               unless (!$tip_commit or
+                               grep { $_ eq $tip_commit } @$parents ) {
+                       push @merge_tips, $tip_commit;
+               } else {
+                       push @merge_tips, undef;
+               }
+       }
+       for my $merge_tip ( @merge_tips ) {
+               my $spec = shift @merges;
+               next unless $merge_tip;
+               my @cmd = ('rev-list', "-1", $merge_tip,
+                          "--not", @$parents );
+               my ($msg_fh, $ctx) = command_output_pipe(@cmd);
+               my $new;
+               while ( <$msg_fh> ) {
+                       $new=1;last;
+               }
+               command_close_pipe($msg_fh, $ctx);
+               if ( $new ) {
+                       push @cmd, @merged_commit_ranges;
+                       my ($msg_fh, $ctx) = command_output_pipe(@cmd);
+                       my $unmerged;
+                       while ( <$msg_fh> ) {
+                               $unmerged=1;last;
+                       }
+                       command_close_pipe($msg_fh, $ctx);
+                       if ( $unmerged ) {
+                               warn "W:svn cherry-pick ignored ($spec)\n";
+                       } else {
+                               warn
+                                 "Found merge parent (svn:mergeinfo prop): ",
+                                 $merge_tip, "\n";
+                               push @$parents, $merge_tip;
+                       }
+               }
+       }
+}
+
 sub make_log_entry {
        my ($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,
+       my %log_entry = ( parents => \@parents, revision => $rev,
                          log => '');
 
        my $headrev;
@@ -2605,7 +3082,7 @@ sub make_log_entry {
                        die "Can't have both 'useSvmProps' and 'rewriteRoot' ",
                            "options set!\n";
                }
-               my ($uuid, $r) = $headrev =~ m{^([a-f\d\-]{30,}):(\d+)$};
+               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;
@@ -2823,6 +3300,14 @@ sub _rev_map_set {
          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) {
@@ -2839,6 +3324,7 @@ sub rev_map_set {
        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] };
@@ -2862,7 +3348,8 @@ sub rev_map_set {
 
        sysopen(my $fh, $db_lock, O_RDWR | O_CREAT)
             or croak "Couldn't open $db_lock: $!\n";
-       _rev_map_set($fh, $rev, $commit);
+       $update_ref eq 'reset' ? _rev_map_reset($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";
@@ -2870,7 +3357,9 @@ sub rev_map_set {
        close $fh or croak $!;
        if ($update_ref) {
                $_head = $self;
-               command_noisy('update-ref', '-m', "r$rev",
+               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: ",
@@ -2932,12 +3421,19 @@ sub rev_map_get {
        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) {
-               close $fh or croak "close: $fh";
                return undef;
        }
 
@@ -2948,18 +3444,16 @@ sub rev_map_get {
                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('NH40', $buf);
+               my ($r, $c) = unpack(rev_map_fmt, $buf);
 
                if ($r < $rev) {
                        $l = $i + 24;
                } elsif ($r > $rev) {
                        $u = $i - 24;
                } else { # $r == $rev
-                       close($fh) or croak "close: $!";
                        return $c eq ('0' x 40) ? undef : $c;
                }
        }
-       close($fh) or croak "close: $!";
        undef;
 }
 
@@ -2971,6 +3465,8 @@ 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);
@@ -3003,12 +3499,24 @@ sub _new {
                $repo_id = $Git::SVN::default_repo_id;
        }
        unless (defined $ref_id && length $ref_id) {
-               $_[2] = $ref_id = $Git::SVN::default_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 $path);
-       mkpath(["$ENV{GIT_DIR}/svn"]);
+       mkpath([$dir]);
        bless {
                ref_id => $ref_id, dir => $dir, index => "$dir/index",
                path => $path, config => "$ENV{GIT_DIR}/svn/config",
@@ -3194,13 +3702,20 @@ package SVN::Git::Fetcher;
 use Carp qw/croak/;
 use File::Temp qw/tempfile/;
 use IO::File qw//;
+use vars qw/$_ignore_regex/;
 
 # file baton members: path, mode_a, mode_b, pool, fh, blob, base
 sub new {
-       my ($class, $git_svn) = @_;
+       my ($class, $git_svn, $switch_path) = @_;
        my $self = SVN::Delta::Editor->new;
        bless $self, $class;
-       $self->{c} = $git_svn->{last_commit} if exists $git_svn->{last_commit};
+       if (exists $git_svn->{last_commit}) {
+               $self->{c} = $git_svn->{last_commit};
+               $self->{empty_symlinks} =
+                                 _mark_empty_symlinks($git_svn, $switch_path);
+       }
+       $self->{ignore_regex} = eval { command_oneline('config', '--get',
+                            "svn-remote.$git_svn->{repo_id}.ignore-paths") };
        $self->{empty} = {};
        $self->{dir_prop} = {};
        $self->{file_prop} = {};
@@ -3210,6 +3725,70 @@ sub new {
        $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;
@@ -3235,20 +3814,24 @@ sub git_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.
-       if (command('ls-tree', $self->{c}, '--', $gpath) =~ /^040000 tree/) {
+       my ($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/,
-                                                    $self->{c}, '--', $gpath);
+                                                    $tree);
                local $/ = "\0";
                while (<$ls>) {
                        chomp;
-                       $self->{gii}->remove($_);
-                       print "\tD\t$_\n" unless $::_q;
+                       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);
@@ -3262,26 +3845,40 @@ sub delete_entry {
 
 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);
-       my ($mode, $blob) = (command('ls-tree', $self->{c}, '--', $gpath)
-                            =~ /^(\d{6}) blob ([a-f\d]{40})\t/);
+       ($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, $cp_rev) = @_;
-       my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
-       delete $self->{empty}->{$dir};
-       { path => $path, mode_a => 100644, mode_b => 100644,
+       my $mode;
+
+       if (!$self->is_path_ignored($path)) {
+               my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
+               delete $self->{empty}->{$dir};
+               $mode = '100644';
+       }
+       { 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, $ctx) = command_output_pipe(qw/ls-tree
@@ -3299,11 +3896,13 @@ sub add_directory {
        my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
        delete $self->{empty}->{$dir};
        $self->{empty}->{$path} = 1;
+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;
@@ -3311,6 +3910,7 @@ sub change_dir_prop {
 
 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;
@@ -3318,6 +3918,7 @@ sub absent_directory {
 
 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;
@@ -3325,6 +3926,7 @@ sub absent_file {
 
 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;
@@ -3340,22 +3942,43 @@ sub change_file_prop {
 
 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}) {
-               print $base 'link ' if ($fb->{mode_a} == 120000);
-               my $size = $::_repository->cat_blob($fb->{blob}, $base);
+               my ($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);
-                       die "Checksum mismatch: $fb->{path} $fb->{blob}\n",
-                           "expected: $exp\n",
-                           "     got: $got\n" if ($got ne $exp);
+                       if ($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 $!;
@@ -3366,6 +3989,8 @@ sub apply_textdelta {
 
 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 = $fb->{fh}) {
@@ -3379,11 +4004,19 @@ sub close_file {
                }
                if ($fb->{mode_b} == 120000) {
                        sysseek($fh, 0, 0) or croak $!;
-                       sysread($fh, my $buf, 5) == 5 or croak $!;
+                       my $rd = sysread($fh, my $buf, 5);
 
-                       unless ($buf eq 'link ') {
+                       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";
+                                    " but is not a link\n";
                        } else {
                                my $tmp_fh = $::_repository->temp_acquire(
                                        'svn_hash');
@@ -3566,7 +4199,7 @@ sub repo_path {
 sub url_path {
        my ($self, $path) = @_;
        if ($self->{url} =~ m#^https?://#) {
-               $path =~ s/([^~a-zA-Z0-9_.-])/uc sprintf("%%%02x",ord($1))/eg;
+               $path =~ s!([^~a-zA-Z0-9_./-])!uc sprintf("%%%02x",ord($1))!eg;
        }
        $self->{url} . '/' . $self->repo_path($path);
 }
@@ -3883,7 +4516,8 @@ package Git::SVN::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/) {
+       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;
@@ -4019,10 +4653,51 @@ 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 $pool = SVN::Pool->new;
-       splice(@args, 3, 1) if ($SVN::Core::VERSION le '1.2.0');
+
+       # 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;
@@ -4096,10 +4771,12 @@ sub gs_do_switch {
 
        my $full_url = $self->{url};
        my $old_url = $full_url;
-       $full_url .= '/' . escape_uri_only($path) if length $path;
+       $full_url .= '/' . $path if length $path;
        my ($ra, $reparented);
 
-       if ($old_url =~ m#^svn(\+ssh)?://#) {
+       if ($old_url =~ m#^svn(\+ssh)?://# ||
+           ($full_url =~ m#^https?://# &&
+            escape_url($full_url) ne $full_url)) {
                $_[0] = undef;
                $self = undef;
                $RA = undef;
@@ -4170,6 +4847,7 @@ sub gs_fetch_loop_common {
        my ($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 $err;
@@ -4180,12 +4858,17 @@ sub gs_fetch_loop_common {
                };
                sub _cb {
                        my ($paths, $r, $author, $date, $log) = @_;
-                       [ dup_changed_paths($paths),
+                       [ $paths,
                          { author => $author, date => $date, log => $log } ];
                }
                $self->get_log([$longest_path], $min, $max, 0, 1, 1,
                               sub { $revs{$_[1]} = _cb(@_) });
-               if ($err && $max >= $head) {
+               if ($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,
@@ -4197,13 +4880,14 @@ sub gs_fetch_loop_common {
                                my $ok;
                                $self->get_log([$longest_path], $min, $hi,
                                               0, 1, 1, sub {
-                                              $ok ||= $_[1];
+                                              $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;
 
@@ -4341,7 +5025,11 @@ sub minimize_url {
        my $c = '';
        do {
                $url .= "/$c" if length $c;
-               eval { (ref $self)->new($url)->get_latest_revnum };
+               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));
        $url;
 }
@@ -4397,28 +5085,11 @@ sub skip_unknown_revs {
        die "Error from SVN, ($errno): ", $err->expanded_message,"\n";
 }
 
-# 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...
-sub dup_changed_paths {
-       my ($paths) = @_;
-       return undef unless $paths;
-       my %ret;
-       foreach my $p (keys %$paths) {
-               my $i = $paths->{$p};
-               my %s = map { $_ => $i->$_ }
-                             qw/copyfrom_path copyfrom_rev action/;
-               $ret{$p} = \%s;
-       }
-       \%ret;
-}
-
 package Git::SVN::Log;
 use strict;
 use warnings;
 use POSIX qw/strftime/;
+use Time::Local;
 use constant commit_log_separator => ('-' x 72) . "\n";
 use vars qw/$TZ $limit $color $pager $non_recursive $verbose $oneline
             %rusers $show_commit $incremental/;
@@ -4525,7 +5196,12 @@ sub run_pager {
 }
 
 sub format_svn_date {
-       return strftime("%Y-%m-%d %H:%M:%S %z (%a, %d %b %Y)", localtime(shift));
+       # 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 ];
+       my $gmoff = sprintf("%s%02d%02d", $sign, (gmtime(abs($t - $gm)))[2,1]);
+       return strftime("%Y-%m-%d %H:%M:%S $gmoff (%a, %d %b %Y)", localtime($t));
 }
 
 sub parse_git_date {
@@ -4767,11 +5443,22 @@ sub cmd_blame {
                                                  '--', $path);
                my ($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+/) {
-                               $sha1 = $1;
-                               (undef, $rev, undef) = ::cmt_metadata($1);
-                               $rev = '0' if (!$rev);
+                               $rev = $s2r->{$1};
+                               $rev = '0' if (!$rev)
                        }
                        elsif ($line =~ /^author (.*)/) {
                                $authors{$rev} = $1;
@@ -5002,7 +5689,7 @@ sub minimize_connections {
                        my $pfx = "svn-remote.$x->{old_repo_id}";
 
                        my $old_fetch = quotemeta("$x->{old_path}:".
-                                                 "refs/remotes/$x->{ref_id}");
+                                                 "$x->{ref_id}");
                        command_noisy(qw/config --unset/,
                                      "$pfx.fetch", '^'. $old_fetch . '$');
                        delete $r->{$x->{old_repo_id}}->
@@ -5071,7 +5758,7 @@ sub new {
        my ($class, $glob) = @_;
        my $re = $glob;
        $re =~ s!/+$!!g; # no need for trailing slashes
-       $re =~ m!^([^*]*)(\*(?:/\*)*)([^*]*)$!;
+       $re =~ m!^([^*]*)(\*(?:/\*)*)(.*)$!;
        my $temp = $re;
        my ($left, $right) = ($1, $3);
        $re = $2;