Root/scripts/setlocalversion

1#!/bin/sh
2#
3# This scripts adds local version information from the version
4# control systems git, mercurial (hg) and subversion (svn).
5#
6# If something goes wrong, send a mail the kernel build mailinglist
7# (see MAINTAINERS) and CC Nico Schottelius
8# <nico-linuxsetlocalversion -at- schottelius.org>.
9#
10#
11
12usage() {
13    echo "Usage: $0 [srctree]" >&2
14    exit 1
15}
16
17cd "${1:-.}" || usage
18
19# Check for git and a git repo.
20if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
21
22    # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore it,
23    # because this version is defined in the top level Makefile.
24    if [ -z "`git describe --exact-match 2>/dev/null`" ]; then
25
26        # If we are past a tagged commit (like "v2.6.30-rc5-302-g72357d5"),
27        # we pretty print it.
28        if atag="`git describe 2>/dev/null`"; then
29            echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
30
31        # If we don't have a tag at all we print -g{commitish}.
32        else
33            printf '%s%s' -g $head
34        fi
35    fi
36
37    # Is this git on svn?
38    if git config --get svn-remote.svn.url >/dev/null; then
39            printf -- '-svn%s' "`git svn find-rev $head`"
40    fi
41
42    # Update index only on r/w media
43    [ -w . ] && git update-index --refresh --unmerged > /dev/null
44
45    # Check for uncommitted changes
46    if git diff-index --name-only HEAD | grep -v "^scripts/package" \
47        | read dummy; then
48        printf '%s' -dirty
49    fi
50
51    # All done with git
52    exit
53fi
54
55# Check for mercurial and a mercurial repo.
56if hgid=`hg id 2>/dev/null`; then
57    tag=`printf '%s' "$hgid" | cut -d' ' -f2`
58
59    # Do we have an untagged version?
60    if [ -z "$tag" -o "$tag" = tip ]; then
61        id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
62        printf '%s%s' -hg "$id"
63    fi
64
65    # Are there uncommitted changes?
66    # These are represented by + after the changeset id.
67    case "$hgid" in
68        *+|*+\ *) printf '%s' -dirty ;;
69    esac
70
71    # All done with mercurial
72    exit
73fi
74
75# Check for svn and a svn repo.
76if rev=`svn info 2>/dev/null | grep '^Last Changed Rev'`; then
77    rev=`echo $rev | awk '{print $NF}'`
78    printf -- '-svn%s' "$rev"
79
80    # All done with svn
81    exit
82fi
83

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