setlocalversion (2fc2991175bf77395e6b15fe6b2304d3bf72da40) setlocalversion (117a93db1dcd6ed61336b27e4e2938f791c1841b)
1#!/usr/bin/perl
2# Copyright 2004 - Ryan Anderson <ryan@michonline.com> GPL v2
1#!/bin/sh
2# Print additional version information for non-release trees.
3
3
4use strict;
5use warnings;
6use Digest::MD5;
7require 5.006;
8
9if (@ARGV != 1) {
10 print <<EOT;
11Usage: setlocalversion <srctree>
12EOT
13 exit(1);
4usage() {
5 echo "Usage: $0 [srctree]" >&2
6 exit 1
14}
15
7}
8
16my ($srctree) = @ARGV;
17chdir($srctree);
9cd "${1:-.}" || usage
18
10
19my @LOCALVERSIONS = ();
11# Check for git and a git repo.
12if head=`git rev-parse --verify HEAD 2>/dev/null`; then
13 # Do we have an untagged version?
14 if [ "`git name-rev --tags HEAD`" = "HEAD undefined" ]; then
15 printf '%s%s' -g `echo "$head" | cut -c1-8`
16 fi
20
17
21# We are going to use the following commands to try and determine if this
22# repository is at a Version boundary (i.e, 2.6.10 vs 2.6.10 + some patches) We
23# currently assume that all meaningful version boundaries are marked by a tag.
24# We don't care what the tag is, just that something exists.
25
26# Git/Cogito store the top-of-tree "commit" in .git/HEAD
27# A list of known tags sits in .git/refs/tags/
28#
29# The simple trick here is to just compare the two of these, and if we get a
30# match, return nothing, otherwise, return a subset of the SHA-1 hash in
31# .git/HEAD
32
33sub do_git_checks {
34 open(H,"<.git/HEAD") or return;
35 my $head = <H>;
36 chomp $head;
37 close(H);
38
39 opendir(D,".git/refs/tags") or return;
40 foreach my $tagfile (grep !/^\.{1,2}$/, readdir(D)) {
41 open(F,"<.git/refs/tags/" . $tagfile) or return;
42 my $tag = <F>;
43 chomp $tag;
44 close(F);
45 return if ($tag eq $head);
46 }
47 closedir(D);
48
49 push @LOCALVERSIONS, "g" . substr($head,0,8);
50}
51
52if ( -d ".git") {
53 do_git_checks();
54}
55
56printf "-%s\n", join("-",@LOCALVERSIONS) if (scalar @LOCALVERSIONS > 0);
18 # Are there uncommitted changes?
19 if git diff-files | read dummy; then
20 printf '%s' -git_dirty
21 fi
22fi