+
+ $gitbranch = 'none';
+ $gitversion = 'none';
+
+ # determine the real Git build number and branch
+ my $desc;
+ eval {$desc = `git --git-dir=$root/.git describe --long`};
+ if (!$@ && $desc) {
+ my ($v, $s, $b, $g) = $desc =~ /^([\d\.]+)(?:\.(\d+))?-(\d+)-g([0-9a-f]+)/;
+ $version = $v;
+ $subversion = $s || 0;
+ $build = $b || 0;
+ $gitversion = "$g\[r]";
+ }
+ if (!$@) {
+ my @branch;
+
+ eval {@branch = `git --git-dir=$root/.git branch`};
+ unless ($@) {
+ for (@branch) {
+ my ($star, $b) = split /\s+/;
+ if ($star eq '*') {
+ $gitbranch = $b;
+ last;
+ }
+ }
+ }
+ }
+