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Annotation of embedaddon/rsync/support/git-set-file-times, revision 1.1.1.1

1.1       misho       1: #!/usr/bin/perl -w
                      2: use strict;
                      3: 
                      4: # Sets mtime and atime of files to the latest commit time in git.
                      5: #
                      6: # This is useful after the first clone of the rsync repository BEFORE you
                      7: # do any building.  It is also safe if you have done a "make distclean".
                      8: 
                      9: my %ls;
                     10: my $commit_time;
                     11: my $prefix = @ARGV && $ARGV[0] =~ s/^--prefix=// ? shift : '';
                     12: 
                     13: $/ = "\0";
                     14: open FH, 'git ls-files -z|' or die $!;
                     15: while (<FH>) {
                     16:     chomp;
                     17:     $ls{$_} = $_;
                     18: }
                     19: close FH;
                     20: 
                     21: $/ = "\n";
                     22: open FH, "git log -r --name-only --no-color --pretty=raw -z @ARGV |" or die $!;
                     23: while (<FH>) {
                     24:     chomp;
                     25:     if (/^committer .*? (\d+) (?:[\-\+]\d+)$/) {
                     26:        $commit_time = $1;
                     27:     } elsif (s/\0\0commit [a-f0-9]{40}$// or s/\0$//) {
                     28:        my @files = delete @ls{split(/\0/, $_)};
                     29:        @files = grep { defined $_ } @files;
                     30:        next unless @files;
                     31:        map { s/^/$prefix/ } @files;
                     32:        utime $commit_time, $commit_time, @files;
                     33:     }
                     34:     last unless %ls;
                     35: }
                     36: close FH;