cvsimport: move over to using git-for-each-ref to read refs.

cvsimport opens all of the files in $GIT_DIR/refs/heads and reads
out the sha1's in order to work out what time the last commit on
that branch was made (in CVS) thus allowing incremental updates.
However, this takes no account of hierachical refs naming producing
the following error for each directory in $GIT_DIR/refs:

  Use of uninitialized value in chomp at /usr/bin/git-cvsimport line 503.
  Use of uninitialized value in concatenation (.) or string at
					/usr/bin/git-cvsimport line 505.
  usage: git-cat-file [-t|-s|-e|-p|<type>] <sha1>

Take advantage of the new packed refs work to use the new
for-each-ref iterator to get this information.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Andy Whitcroft 2006-09-20 17:37:04 +01:00 committed by Junio C Hamano
parent 9f613ddd21
commit 1f24c58724

View File

@ -495,22 +495,17 @@ unless(-d $git_dir) {
$tip_at_start = `git-rev-parse --verify HEAD`;
# Get the last import timestamps
opendir(D,"$git_dir/refs/heads");
while(defined(my $head = readdir(D))) {
next if $head =~ /^\./;
open(F,"$git_dir/refs/heads/$head")
or die "Bad head branch: $head: $!\n";
chomp(my $ftag = <F>);
close(F);
open(F,"git-cat-file commit $ftag |");
while(<F>) {
next unless /^author\s.*\s(\d+)\s[-+]\d{4}$/;
my $fmt = '($ref, $author) = (%(refname), %(author));';
open(H, "git-for-each-ref --perl --format='$fmt' refs/heads |") or
die "Cannot run git-for-each-ref: $!\n";
while(defined(my $entry = <H>)) {
my ($ref, $author);
eval($entry) || die "cannot eval refs list: $@";
my ($head) = ($ref =~ m|^refs/heads/(.*)|);
$author =~ /^.*\s(\d+)\s[-+]\d{4}$/;
$branch_date{$head} = $1;
last;
}
close(F);
}
closedir(D);
close(H);
}
-d $git_dir