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Rene Scharfe117a93d2006-01-04 20:42:03 +01001#!/bin/sh
Nico Schottelius33252572009-05-16 14:00:56 +02002#
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#
Ryan Andersonaaebf432005-07-31 04:57:49 -040011
Rene Scharfe117a93d2006-01-04 20:42:03 +010012usage() {
Michal Marekb003afe2010-07-15 10:36:37 +020013 echo "Usage: $0 [--save-scmversion] [srctree]" >&2
Rene Scharfe117a93d2006-01-04 20:42:03 +010014 exit 1
Ryan Andersonaaebf432005-07-31 04:57:49 -040015}
16
Michal Marek09155122010-06-17 15:14:58 +020017scm_only=false
18srctree=.
Michal Marekb003afe2010-07-15 10:36:37 +020019if test "$1" = "--save-scmversion"; then
Michal Marek09155122010-06-17 15:14:58 +020020 scm_only=true
21 shift
22fi
23if test $# -gt 0; then
24 srctree=$1
25 shift
26fi
27if test $# -gt 0 -o ! -d "$srctree"; then
28 usage
29fi
Ryan Andersonaaebf432005-07-31 04:57:49 -040030
Michal Marek09155122010-06-17 15:14:58 +020031scm_version()
32{
Michał Górny6dc0c2f2010-07-18 10:26:40 +020033 local short
34 short=false
Nico Schottelius33252572009-05-16 14:00:56 +020035
Michal Marek09155122010-06-17 15:14:58 +020036 cd "$srctree"
37 if test -e .scmversion; then
Michał Górny6dc0c2f2010-07-18 10:26:40 +020038 cat .scmversion
Michal Marek09155122010-06-17 15:14:58 +020039 return
40 fi
41 if test "$1" = "--short"; then
42 short=true
43 fi
Nico Schottelius33252572009-05-16 14:00:56 +020044
Michal Marek09155122010-06-17 15:14:58 +020045 # Check for git and a git repo.
46 if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
Nico Schottelius33252572009-05-16 14:00:56 +020047
Michal Marek09155122010-06-17 15:14:58 +020048 # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
49 # it, because this version is defined in the top level Makefile.
50 if [ -z "`git describe --exact-match 2>/dev/null`" ]; then
51
52 # If only the short version is requested, don't bother
53 # running further git commands
54 if $short; then
55 echo "+"
56 return
57 fi
58 # If we are past a tagged commit (like
59 # "v2.6.30-rc5-302-g72357d5"), we pretty print it.
60 if atag="`git describe 2>/dev/null`"; then
61 echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
62
63 # If we don't have a tag at all we print -g{commitish}.
64 else
65 printf '%s%s' -g $head
66 fi
Nico Schottelius33252572009-05-16 14:00:56 +020067 fi
Michal Marek09155122010-06-17 15:14:58 +020068
69 # Is this git on svn?
70 if git config --get svn-remote.svn.url >/dev/null; then
71 printf -- '-svn%s' "`git svn find-rev $head`"
72 fi
73
74 # Update index only on r/w media
75 [ -w . ] && git update-index --refresh --unmerged > /dev/null
76
77 # Check for uncommitted changes
78 if git diff-index --name-only HEAD | grep -v "^scripts/package" \
79 | read dummy; then
80 printf '%s' -dirty
81 fi
82
83 # All done with git
84 return
Rene Scharfe117a93d2006-01-04 20:42:03 +010085 fi
Ryan Andersonaaebf432005-07-31 04:57:49 -040086
Michal Marek09155122010-06-17 15:14:58 +020087 # Check for mercurial and a mercurial repo.
88 if hgid=`hg id 2>/dev/null`; then
Milton Miller55c640c2010-07-22 10:19:38 -050089 tag=`printf '%s' "$hgid" | cut -s -d' ' -f2`
Michal Marek09155122010-06-17 15:14:58 +020090
91 # Do we have an untagged version?
92 if [ -z "$tag" -o "$tag" = tip ]; then
93 id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
94 printf '%s%s' -hg "$id"
95 fi
96
97 # Are there uncommitted changes?
98 # These are represented by + after the changeset id.
99 case "$hgid" in
100 *+|*+\ *) printf '%s' -dirty ;;
101 esac
102
103 # All done with mercurial
104 return
Peter Korsgaardff80aa92008-12-02 21:58:06 +0100105 fi
106
Michal Marek09155122010-06-17 15:14:58 +0200107 # Check for svn and a svn repo.
108 if rev=`svn info 2>/dev/null | grep '^Last Changed Rev'`; then
109 rev=`echo $rev | awk '{print $NF}'`
110 printf -- '-svn%s' "$rev"
Nico Schotteliusa2bb90a2009-06-12 09:59:52 +0200111
Michal Marek09155122010-06-17 15:14:58 +0200112 # All done with svn
113 return
Rene Scharfe117a93d2006-01-04 20:42:03 +0100114 fi
Michal Marek09155122010-06-17 15:14:58 +0200115}
Aron Griffis3dce1742007-11-28 16:55:44 -0500116
Michal Marek09155122010-06-17 15:14:58 +0200117collect_files()
118{
119 local file res
120
121 for file; do
122 case "$file" in
123 *\~*)
124 continue
125 ;;
126 esac
127 if test -e "$file"; then
128 res="$res$(cat "$file")"
129 fi
130 done
131 echo "$res"
132}
133
134if $scm_only; then
Michal Marekb003afe2010-07-15 10:36:37 +0200135 if test ! -e .scmversion; then
136 res=$(scm_version)
137 echo "$res" >.scmversion
138 fi
Aron Griffis3dce1742007-11-28 16:55:44 -0500139 exit
140fi
141
Michal Marek09155122010-06-17 15:14:58 +0200142if test -e include/config/auto.conf; then
Michał Górny6dc0c2f2010-07-18 10:26:40 +0200143 . include/config/auto.conf
Michal Marek09155122010-06-17 15:14:58 +0200144else
145 echo "Error: kernelrelease not valid - run 'make prepare' to update it"
146 exit 1
147fi
Aron Griffis3dce1742007-11-28 16:55:44 -0500148
Michal Marek09155122010-06-17 15:14:58 +0200149# localversion* files in the build and source directory
150res="$(collect_files localversion*)"
151if test ! "$srctree" -ef .; then
152 res="$res$(collect_files "$srctree"/localversion*)"
153fi
154
155# CONFIG_LOCALVERSION and LOCALVERSION (if set)
156res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"
157
158# scm version string if not at a tagged commit
159if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
160 # full scm version string
161 res="$res$(scm_version)"
162else
163 # apped a plus sign if the repository is not in a clean tagged
164 # state and LOCALVERSION= is not specified
165 if test "${LOCALVERSION+set}" != "set"; then
166 scm=$(scm_version --short)
167 res="$res${scm:++}"
Aron Griffis3dce1742007-11-28 16:55:44 -0500168 fi
Rene Scharfe117a93d2006-01-04 20:42:03 +0100169fi
Bryan Wuba3d05f2008-02-03 14:13:26 +0800170
Michal Marek09155122010-06-17 15:14:58 +0200171echo "$res"