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; 37