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git-svn: Allow certain refs to be ignored

Implement a new --ignore-refs option which specifies a regex of refs
to ignore while importing svn history.

This is a useful supplement to the --ignore-paths option, as that
option only operates on the contents of branches and tags, not the
branches and tags themselves.

Signed-off-by: Michael Olson <mwolson@gnu.org>
Acked-by: Eric Wong <normalperson@yhbt.net>
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1 parent afd7f1e commit cdb51a13c3cf4830d499d1138160eacdd2b8aa46 @mwolson mwolson committed with Eric Wong Oct 10, 2011
Showing with 33 additions and 5 deletions.
  1. +33 −5 git-svn.perl
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@@ -94,7 +94,8 @@ BEGIN
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,
- 'ignore-paths=s' => \$SVN::Git::Fetcher::_ignore_regex );
+ 'ignore-paths=s' => \$SVN::Git::Fetcher::_ignore_regex,
+ 'ignore-refs=s' => \$Git::SVN::Ra::_ignore_refs_regex );
my %fc_opts = ( 'follow-parent|follow!' => \$Git::SVN::_follow_parent,
'authors-file|A=s' => \$_authors,
'authors-prog=s' => \$_authors_prog,
@@ -440,9 +441,12 @@ 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;
+ my $ignore_paths_regex = \$SVN::Git::Fetcher::_ignore_regex;
+ command_noisy('config', "$pfx.ignore-paths", $$ignore_paths_regex)
+ if defined $$ignore_paths_regex;
+ my $ignore_refs_regex = \$Git::SVN::Ra::_ignore_refs_regex;
+ command_noisy('config', "$pfx.ignore-refs", $$ignore_refs_regex)
+ if defined $$ignore_refs_regex;
if (defined $SVN::Git::Fetcher::_preserve_empty_dirs) {
my $fname = \$SVN::Git::Fetcher::_placeholder_filename;
@@ -2192,6 +2196,8 @@ sub read_all_remotes {
$r->{$1}->{url} = $2;
} elsif (m!^(.+)\.pushurl=\s*(.*)\s*$!) {
$r->{$1}->{pushurl} = $2;
+ } elsif (m!^(.+)\.ignore-refs=\s*(.*)\s*$!) {
+ $r->{$1}->{ignore_refs_regex} = $2;
} elsif (m!^(.+)\.(branches|tags)=$svn_refspec$!) {
my ($remote, $t, $local_ref, $remote_ref) =
($1, $2, $3, $4);
@@ -2228,6 +2234,16 @@ sub read_all_remotes {
}
} keys %$r;
+ foreach my $remote (keys %$r) {
+ foreach ( grep { defined $_ }
+ map { $r->{$remote}->{$_} } qw(branches tags) ) {
+ foreach my $rs ( @$_ ) {
+ $rs->{ignore_refs_regex} =
+ $r->{$remote}->{ignore_refs_regex};
+ }
+ }
+ }
+
$r;
}
@@ -5383,7 +5399,7 @@ sub apply_diff {
}
package Git::SVN::Ra;
-use vars qw/@ISA $config_dir $_log_window_size/;
+use vars qw/@ISA $config_dir $_ignore_refs_regex $_log_window_size/;
use strict;
use warnings;
my ($ra_invalid, $can_do_switch, %ignored_err, $RA);
@@ -5841,6 +5857,17 @@ sub get_dir_globbed {
@finalents;
}
+# return value: 0 -- don't ignore, 1 -- ignore
+sub is_ref_ignored {
+ my ($g, $p) = @_;
+ my $refname = $g->{ref}->full_path($p);
+ return 1 if defined($g->{ignore_refs_regex}) &&
+ $refname =~ m!$g->{ignore_refs_regex}!;
+ return 0 unless defined($_ignore_refs_regex);
+ return 1 if $refname =~ m!$_ignore_refs_regex!o;
+ return 0;
+}
+
sub match_globs {
my ($self, $exists, $paths, $globs, $r) = @_;
@@ -5877,6 +5904,7 @@ sub match_globs {
next unless /$g->{path}->{regex}/;
my $p = $1;
my $pathname = $g->{path}->full_path($p);
+ next if is_ref_ignored($g, $p);
next if $exists->{$pathname};
next if ($self->check_path($pathname, $r) !=
$SVN::Node::dir);

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