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-rw-r--r--lib/gitversion.pl47
1 files changed, 47 insertions, 0 deletions
diff --git a/lib/gitversion.pl b/lib/gitversion.pl
new file mode 100644
index 0000000..dd25c89
--- /dev/null
+++ b/lib/gitversion.pl
@@ -0,0 +1,47 @@
+#!/usr/bin/perl -w
+use strict;
+
+my $dir = shift;
+chdir $dir || die "$dir: $!\n";
+
+my $gitdesc = `git describe --always --first-parent --tags --dirty --match 'frr-*' || echo -- \"0-gUNKNOWN\"`;
+chomp $gitdesc;
+my $gitsuffix = ($gitdesc =~ /-g([0-9a-fA-F]+(-dirty)?)$/) ? "-g$1" : "-gUNKNOWN";
+
+printf STDERR "git suffix: %s\n", $gitsuffix;
+printf "#define GIT_SUFFIX \"%s\"\n", $gitsuffix;
+
+my $gitcommit = `git log -1 --format=\"%H\" || echo DEADBEEF`;
+chomp $gitcommit;
+open(BRANCHES, "git branch -a -v --abbrev=40|") || die "git branch: $!\n";
+my @names = ();
+while (<BRANCHES>) {
+ chomp $_;
+ if (/\s+(.*?)\s+$gitcommit/) {
+ my $branch = $1;
+ if ($branch =~ /^remotes\/(.*?)(\/.*)$/) {
+ my $path = $2;
+ my $url = `git config --get "remote.$1.url"`;
+ chomp $url;
+ $url =~ s/^(git:|https?:|git@)\/\/github\.com/github/i;
+ $url =~ s/^(ssh|git):\/\/git\.sv\.gnu\.org\/srv\/git\//savannah:/i;
+ $url =~ s/^(ssh|git):\/\/git\.savannah\.nongnu\.org\//savannah:/i;
+
+ push @names, $url.$path;
+ } else {
+ push @names, 'local:'.$branch;
+ }
+ }
+}
+
+printf STDERR "git branches: %s\n", join(", ", @names);
+
+my $cr = "\\r\\n\\";
+printf <<EOF, $gitdesc, join($cr."\n\\t", @names);
+#define GIT_INFO "$cr
+This is a git build of %s$cr
+Associated branch(es):$cr
+\\t%s$cr
+"
+EOF
+