use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
use IPC::Open3;
use Git;
+use Memoize; # core since 5.8.0, Jul 2002
BEGIN {
# import functions from Git into our packages, en masse
*{"${package}::$_"} = \&{"Git::$_"};
}
}
+ Memoize::memoize 'Git::config';
+ Memoize::memoize 'Git::config_bool';
}
my ($SVN);
$_prefix, $_no_checkout, $_url, $_verbose,
$_git_format, $_commit_url, $_tag, $_merge_info);
$Git::SVN::_follow_parent = 1;
+$SVN::Git::Fetcher::_placeholder_filename = ".gitignore";
$_q ||= 0;
my %remote_opts = ( 'username=s' => \$Git::SVN::Prompt::_username,
'config-dir=s' => \$Git::SVN::Ra::config_dir,
%fc_opts } ],
clone => [ \&cmd_clone, "Initialize and fetch revisions",
{ 'revision|r=s' => \$_revision,
+ 'preserve-empty-dirs' =>
+ \$SVN::Git::Fetcher::_preserve_empty_dirs,
+ 'placeholder-filename=s' =>
+ \$SVN::Git::Fetcher::_placeholder_filename,
%fc_opts, %init_opts } ],
init => [ \&cmd_init, "Initialize a repo for tracking" .
" (requires URL argument)",
my $ignore_regex = \$SVN::Git::Fetcher::_ignore_regex;
command_noisy('config', "$pfx.ignore-paths", $$ignore_regex)
if defined $$ignore_regex;
+
+ if (defined $SVN::Git::Fetcher::_preserve_empty_dirs) {
+ my $fname = \$SVN::Git::Fetcher::_placeholder_filename;
+ command_noisy('config', "$pfx.preserve-empty-dirs", 'true');
+ command_noisy('config', "$pfx.placeholder-filename", $$fname);
+ }
}
sub init_subdir {
$url = eval { command_oneline('config', '--get',
"svn-remote.$gs->{repo_id}.commiturl") };
if (!$url) {
- $url = $gs->full_url
+ $url = $gs->full_pushurl
}
}
}
my $expect_url = $url;
Git::SVN::remove_username($expect_url);
+ if (defined($_merge_info)) {
+ $_merge_info =~ tr{ }{\n};
+ }
while (1) {
my $d = shift @$linear_refs or last;
unless (defined $last_rev) {
$head ||= 'HEAD';
my (undef, $rev, undef, $gs) = working_head_info($head);
- my $src = $gs->full_url;
+ my $src = $gs->full_pushurl;
my $remote = Git::SVN::read_all_remotes()->{$gs->{repo_id}};
my $allglobs = $remote->{ $_tag ? 'tags' : 'branches' };
$url = eval { command_oneline('config', '--get',
"svn-remote.$gs->{repo_id}.commiturl") };
if (!$url) {
- $url = $remote->{url};
+ $url = $remote->{pushurl} || $remote->{url};
}
}
my $dst = join '/', $url, $lft, $branch_name, ($rgt || ());
print "$result\n" if $result;
}
+sub auto_create_empty_directories {
+ my ($gs) = @_;
+ my $var = eval { command_oneline('config', '--get', '--bool',
+ "svn-remote.$gs->{repo_id}.automkdirs") };
+ # By default, create empty directories by consulting the unhandled log,
+ # but allow setting it to 'false' to skip it.
+ return !($var && $var eq 'false');
+}
+
sub cmd_rebase {
command_noisy(qw/update-index --refresh/);
my ($url, $rev, $uuid, $gs) = working_head_info('HEAD');
$_fetch_all ? $gs->fetch_all : $gs->fetch;
}
command_noisy(rebase_cmd(), $gs->refname);
- $gs->mkemptydirs;
+ if (auto_create_empty_directories($gs)) {
+ $gs->mkemptydirs;
+ }
}
sub cmd_show_ignore {
command_noisy(qw/read-tree -m -u -v HEAD HEAD/);
print STDERR "Checked out HEAD:\n ",
$gs->full_url, " r", $gs->last_rev, "\n";
- $gs->mkemptydirs($gs->last_rev);
+ if (auto_create_empty_directories($gs)) {
+ $gs->mkemptydirs($gs->last_rev);
+ }
}
sub complete_svn_url {
$r->{$1}->{svm} = {};
} elsif (m!^(.+)\.url=\s*(.*)\s*$!) {
$r->{$1}->{url} = $2;
+ } elsif (m!^(.+)\.pushurl=\s*(.*)\s*$!) {
+ $r->{$1}->{pushurl} = $2;
} elsif (m!^(.+)\.(branches|tags)=$svn_refspec$!) {
my ($remote, $t, $local_ref, $remote_ref) =
($1, $2, $3, $4);
$self->{url} = command_oneline('config', '--get',
"svn-remote.$repo_id.url") or
die "Failed to read \"svn-remote.$repo_id.url\" in config\n";
+ $self->{pushurl} = eval { command_oneline('config', '--get',
+ "svn-remote.$repo_id.pushurl") };
$self->rebuild;
$self;
}
$self->{url} . (length $self->{path} ? '/' . $self->{path} : '');
}
+sub full_pushurl {
+ my ($self) = @_;
+ if ($self->{pushurl}) {
+ return $self->{pushurl} . (length $self->{path} ? '/' .
+ $self->{path} : '');
+ } else {
+ return $self->full_url;
+ }
+}
sub set_commit_header_env {
my ($log_entry) = @_;
my (undef, $max_commit) = $gs->rev_map_max(1);
last if (!$max_commit);
my ($url) = ::cmt_metadata($max_commit);
- last if ($url eq $gs->full_url);
+ last if ($url eq $gs->metadata_url);
$ref_id .= '-';
}
print STDERR "Initializing parent: $ref_id\n" unless $::_q > 1;
next;
}
- push @merged_commit_ranges,
- "$bottom_commit^..$top_commit";
+ if (scalar(command('rev-parse', "$bottom_commit^@"))) {
+ push @merged_commit_ranges,
+ "$bottom_commit^..$top_commit";
+ } else {
+ push @merged_commit_ranges, "$top_commit";
+ }
if ( !defined $tip or $top > $tip ) {
$tip = $top;
my $parents = shift;
my @ranges = @_;
my %commits = map { $_ => 1 }
- _rev_list("--no-merges", $tip, "--not", $base, @$parents);
+ _rev_list("--no-merges", $tip, "--not", $base, @$parents, "--");
for my $range ( @ranges ) {
- delete @commits{_rev_list($range)};
+ delete @commits{_rev_list($range, "--")};
}
for my $commit (keys %commits) {
if (has_no_changes($commit)) {
Memoize::unmemoize 'check_cherry_pick';
Memoize::unmemoize 'has_no_changes';
}
+
+ Memoize::memoize 'Git::SVN::repos_root';
}
END {
}
package SVN::Git::Fetcher;
-use vars qw/@ISA/;
+use vars qw/@ISA $_ignore_regex $_preserve_empty_dirs $_placeholder_filename
+ @deleted_gpath %added_placeholder $repo_id/;
use strict;
use warnings;
use Carp qw/croak/;
+use File::Basename qw/dirname/;
use IO::File qw//;
-use vars qw/$_ignore_regex/;
# file baton members: path, mode_a, mode_b, pool, fh, blob, base
sub new {
$self->{empty_symlinks} =
_mark_empty_symlinks($git_svn, $switch_path);
}
- $self->{ignore_regex} = eval { command_oneline('config', '--get',
- "svn-remote.$git_svn->{repo_id}.ignore-paths") };
+
+ # some options are read globally, but can be overridden locally
+ # per [svn-remote "..."] section. Command-line options will *NOT*
+ # override options set in an [svn-remote "..."] section
+ $repo_id = $git_svn->{repo_id};
+ my $k = "svn-remote.$repo_id.ignore-paths";
+ my $v = eval { command_oneline('config', '--get', $k) };
+ $self->{ignore_regex} = $v;
+
+ $k = "svn-remote.$repo_id.preserve-empty-dirs";
+ $v = eval { command_oneline('config', '--get', '--bool', $k) };
+ if ($v && $v eq 'true') {
+ $_preserve_empty_dirs = 1;
+ $k = "svn-remote.$repo_id.placeholder-filename";
+ $v = eval { command_oneline('config', '--get', $k) };
+ $_placeholder_filename = $v;
+ }
+
+ # Load the list of placeholder files added during previous invocations.
+ $k = "svn-remote.$repo_id.added-placeholder";
+ $v = eval { command_oneline('config', '--get-all', $k) };
+ if ($_preserve_empty_dirs && $v) {
+ # command() prints errors to stderr, so we only call it if
+ # command_oneline() succeeded.
+ my @v = command('config', '--get-all', $k);
+ $added_placeholder{ dirname($_) } = $_ foreach @v;
+ }
+
$self->{empty} = {};
$self->{dir_prop} = {};
$self->{file_prop} = {};
$self->{gii}->remove($gpath);
print "\tD\t$gpath\n" unless $::_q;
}
+ # Don't add to @deleted_gpath if we're deleting a placeholder file.
+ push @deleted_gpath, $gpath unless $added_placeholder{dirname($path)};
$self->{empty}->{$path} = 0;
undef;
}
my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
delete $self->{empty}->{$dir};
$mode = '100644';
+
+ if ($added_placeholder{$dir}) {
+ # Remove our placeholder file, if we created one.
+ delete_entry($self, $added_placeholder{$dir})
+ unless $path eq $added_placeholder{$dir};
+ delete $added_placeholder{$dir}
+ }
}
+
{ path => $path, mode_a => $mode, mode_b => $mode,
pool => SVN::Pool->new, action => 'A' };
}
chomp;
$self->{gii}->remove($_);
print "\tD\t$_\n" unless $::_q;
+ push @deleted_gpath, $gpath;
}
command_close_pipe($ls, $ctx);
$self->{empty}->{$path} = 0;
my ($dir, $file) = ($path =~ m#^(.*?)/?([^/]+)$#);
delete $self->{empty}->{$dir};
$self->{empty}->{$path} = 1;
+
+ if ($added_placeholder{$dir}) {
+ # Remove our placeholder file, if we created one.
+ delete_entry($self, $added_placeholder{$dir});
+ delete $added_placeholder{$dir}
+ }
+
out:
{ path => $path };
}
sub close_edit {
my $self = shift;
+
+ if ($_preserve_empty_dirs) {
+ my @empty_dirs;
+
+ # Any entry flagged as empty that also has an associated
+ # dir_prop represents a newly created empty directory.
+ foreach my $i (keys %{$self->{empty}}) {
+ push @empty_dirs, $i if exists $self->{dir_prop}->{$i};
+ }
+
+ # Search for directories that have become empty due subsequent
+ # file deletes.
+ push @empty_dirs, $self->find_empty_directories();
+
+ # Finally, add a placeholder file to each empty directory.
+ $self->add_placeholder_file($_) foreach (@empty_dirs);
+
+ $self->stash_placeholder_list();
+ }
+
$self->{git_commit_ok} = 1;
$self->{nr} = $self->{gii}->{nr};
delete $self->{gii};
$self->SUPER::close_edit(@_);
}
+sub find_empty_directories {
+ my ($self) = @_;
+ my @empty_dirs;
+ my %dirs = map { dirname($_) => 1 } @deleted_gpath;
+
+ foreach my $dir (sort keys %dirs) {
+ next if $dir eq ".";
+
+ # If there have been any additions to this directory, there is
+ # no reason to check if it is empty.
+ my $skip_added = 0;
+ foreach my $t (qw/dir_prop file_prop/) {
+ foreach my $path (keys %{ $self->{$t} }) {
+ if (exists $self->{$t}->{dirname($path)}) {
+ $skip_added = 1;
+ last;
+ }
+ }
+ last if $skip_added;
+ }
+ next if $skip_added;
+
+ # Use `git ls-tree` to get the filenames of this directory
+ # that existed prior to this particular commit.
+ my $ls = command('ls-tree', '-z', '--name-only',
+ $self->{c}, "$dir/");
+ my %files = map { $_ => 1 } split(/\0/, $ls);
+
+ # Remove the filenames that were deleted during this commit.
+ delete $files{$_} foreach (@deleted_gpath);
+
+ # Report the directory if there are no filenames left.
+ push @empty_dirs, $dir unless (scalar %files);
+ }
+ @empty_dirs;
+}
+
+sub add_placeholder_file {
+ my ($self, $dir) = @_;
+ my $path = "$dir/$_placeholder_filename";
+ my $gpath = $self->git_path($path);
+
+ my $fh = $::_repository->temp_acquire($gpath);
+ my $hash = $::_repository->hash_and_insert_object(Git::temp_path($fh));
+ Git::temp_release($fh, 1);
+ $self->{gii}->update('100644', $hash, $gpath) or croak $!;
+
+ # The directory should no longer be considered empty.
+ delete $self->{empty}->{$dir} if exists $self->{empty}->{$dir};
+
+ # Keep track of any placeholder files we create.
+ $added_placeholder{$dir} = $path;
+}
+
+sub stash_placeholder_list {
+ my ($self) = @_;
+ my $k = "svn-remote.$repo_id.added-placeholder";
+ my $v = eval { command_oneline('config', '--get-all', $k) };
+ command_noisy('config', '--unset-all', $k) if $v;
+ foreach (values %added_placeholder) {
+ command_noisy('config', '--add', $k, $_);
+ }
+}
+
package SVN::Git::Editor;
use vars qw/@ISA $_rmdir $_cp_similarity $_find_copies_harder $_rename_limit/;
use strict;
my (@k, $c, $d, $stat);
my $esc_color = qr/(?:\033\[(?:(?:\d+;)*\d*)?m)*/;
while (<$log>) {
- if (/^${esc_color}commit -?($::sha1_short)/o) {
+ if (/^${esc_color}commit (?:- )?($::sha1_short)/o) {
my $cmt = $1;
if ($c && cmt_showable($c) && $c->{r} != $r_last) {
$r_last = $c->{r};