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Wolfgang Denk881a87e2006-02-21 17:33:04 +01001#!/bin/sh
Rasmus Villemoes2ed1b242020-08-25 17:28:39 +02002# SPDX-License-Identifier: GPL-2.0
Kyle Moffetta7b39182011-12-16 11:14:40 +00003#
4# This scripts adds local version information from the version
5# control systems git, mercurial (hg) and subversion (svn).
6#
Masahiro Yamadaa6f47d22014-08-22 19:42:28 +09007# If something goes wrong, send a mail the kernel build mailinglist
8# (see MAINTAINERS) and CC Nico Schottelius
9# <nico-linuxsetlocalversion -at- schottelius.org>.
10#
Kyle Moffetta7b39182011-12-16 11:14:40 +000011#
Wolfgang Denk881a87e2006-02-21 17:33:04 +010012
13usage() {
Kyle Moffetta7b39182011-12-16 11:14:40 +000014 echo "Usage: $0 [--save-scmversion] [srctree]" >&2
Wolfgang Denk881a87e2006-02-21 17:33:04 +010015 exit 1
16}
17
Kyle Moffetta7b39182011-12-16 11:14:40 +000018scm_only=false
19srctree=.
20if test "$1" = "--save-scmversion"; then
21 scm_only=true
22 shift
23fi
24if test $# -gt 0; then
25 srctree=$1
26 shift
27fi
28if test $# -gt 0 -o ! -d "$srctree"; then
29 usage
30fi
Wolfgang Denk881a87e2006-02-21 17:33:04 +010031
Kyle Moffetta7b39182011-12-16 11:14:40 +000032scm_version()
33{
34 local short
35 short=false
36
37 cd "$srctree"
38 if test -e .scmversion; then
39 cat .scmversion
40 return
41 fi
42 if test "$1" = "--short"; then
43 short=true
Wolfgang Denk881a87e2006-02-21 17:33:04 +010044 fi
45
Kyle Moffetta7b39182011-12-16 11:14:40 +000046 # Check for git and a git repo.
Masahiro Yamadaa6f47d22014-08-22 19:42:28 +090047 if test -z "$(git rev-parse --show-cdup 2>/dev/null)" &&
Rasmus Villemoes2ed1b242020-08-25 17:28:39 +020048 head=$(git rev-parse --verify --short HEAD 2>/dev/null); then
Kyle Moffetta7b39182011-12-16 11:14:40 +000049
50 # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore
51 # it, because this version is defined in the top level Makefile.
Rasmus Villemoes2ed1b242020-08-25 17:28:39 +020052 if [ -z "$(git describe --exact-match 2>/dev/null)" ]; then
Kyle Moffetta7b39182011-12-16 11:14:40 +000053
54 # If only the short version is requested, don't bother
55 # running further git commands
56 if $short; then
57 echo "+"
58 return
59 fi
60 # If we are past a tagged commit (like
61 # "v2.6.30-rc5-302-g72357d5"), we pretty print it.
Rasmus Villemoes2ed1b242020-08-25 17:28:39 +020062 if atag="$(git describe 2>/dev/null)"; then
Kyle Moffetta7b39182011-12-16 11:14:40 +000063 echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
64
65 # If we don't have a tag at all we print -g{commitish}.
66 else
67 printf '%s%s' -g $head
68 fi
69 fi
70
71 # Is this git on svn?
72 if git config --get svn-remote.svn.url >/dev/null; then
Rasmus Villemoes2ed1b242020-08-25 17:28:39 +020073 printf -- '-svn%s' "$(git svn find-rev $head)"
Kyle Moffetta7b39182011-12-16 11:14:40 +000074 fi
75
Rasmus Villemoes2ed1b242020-08-25 17:28:39 +020076 # Check for uncommitted changes.
77 # First, with git-status, but --no-optional-locks is only
78 # supported in git >= 2.14, so fall back to git-diff-index if
79 # it fails. Note that git-diff-index does not refresh the
80 # index, so it may give misleading results. See
81 # git-update-index(1), git-diff-index(1), and git-status(1).
82 if {
83 git --no-optional-locks status -uno --porcelain 2>/dev/null ||
84 git diff-index --name-only HEAD
85 } | grep -qvE '^(.. )?scripts/package'; then
Kyle Moffetta7b39182011-12-16 11:14:40 +000086 printf '%s' -dirty
87 fi
88
89 # All done with git
90 return
Wolfgang Denk881a87e2006-02-21 17:33:04 +010091 fi
Mike Frysinger92bad202008-04-08 14:00:57 -040092
Kyle Moffetta7b39182011-12-16 11:14:40 +000093 # Check for mercurial and a mercurial repo.
Rasmus Villemoes2ed1b242020-08-25 17:28:39 +020094 if test -d .hg && hgid=$(hg id 2>/dev/null); then
Kyle Moffetta7b39182011-12-16 11:14:40 +000095 # Do we have an tagged version? If so, latesttagdistance == 1
Rasmus Villemoes2ed1b242020-08-25 17:28:39 +020096 if [ "$(hg log -r . --template '{latesttagdistance}')" = "1" ]; then
97 id=$(hg log -r . --template '{latesttag}')
Kyle Moffetta7b39182011-12-16 11:14:40 +000098 printf '%s%s' -hg "$id"
99 else
Rasmus Villemoes2ed1b242020-08-25 17:28:39 +0200100 tag=$(printf '%s' "$hgid" | cut -d' ' -f2)
Kyle Moffetta7b39182011-12-16 11:14:40 +0000101 if [ -z "$tag" -o "$tag" = tip ]; then
Rasmus Villemoes2ed1b242020-08-25 17:28:39 +0200102 id=$(printf '%s' "$hgid" | sed 's/[+ ].*//')
Kyle Moffetta7b39182011-12-16 11:14:40 +0000103 printf '%s%s' -hg "$id"
104 fi
105 fi
106
107 # Are there uncommitted changes?
108 # These are represented by + after the changeset id.
109 case "$hgid" in
110 *+|*+\ *) printf '%s' -dirty ;;
111 esac
112
113 # All done with mercurial
114 return
115 fi
116
117 # Check for svn and a svn repo.
Rasmus Villemoes2ed1b242020-08-25 17:28:39 +0200118 if rev=$(LANG= LC_ALL= LC_MESSAGES=C svn info 2>/dev/null | grep '^Last Changed Rev'); then
119 rev=$(echo $rev | awk '{print $NF}')
Kyle Moffetta7b39182011-12-16 11:14:40 +0000120 printf -- '-svn%s' "$rev"
121
122 # All done with svn
123 return
124 fi
125}
126
127collect_files()
128{
Rasmus Villemoes2ed1b242020-08-25 17:28:39 +0200129 local file res=
Kyle Moffetta7b39182011-12-16 11:14:40 +0000130
131 for file; do
132 case "$file" in
133 *\~*)
134 continue
135 ;;
136 esac
137 if test -e "$file"; then
138 res="$res$(cat "$file")"
139 fi
140 done
141 echo "$res"
142}
143
144if $scm_only; then
145 if test ! -e .scmversion; then
146 res=$(scm_version)
147 echo "$res" >.scmversion
148 fi
149 exit
150fi
151
Masahiro Yamadaa6f47d22014-08-22 19:42:28 +0900152if test -e include/config/auto.conf; then
Philipp Tomsich81630a32017-08-08 15:26:12 +0200153 # We are interested only in CONFIG_LOCALVERSION and
Rasmus Villemoes2ed1b242020-08-25 17:28:39 +0200154 # CONFIG_LOCALVERSION_AUTO, so extract these in a safe
155 # way (i.e. w/o sourcing auto.conf)
Philipp Tomsich81630a32017-08-08 15:26:12 +0200156 CONFIG_LOCALVERSION=`cat include/config/auto.conf | awk -F '=' '/^CONFIG_LOCALVERSION=/ {print $2}'`
157 CONFIG_LOCALVERSION_AUTO=`cat include/config/auto.conf | awk -F '=' '/^CONFIG_LOCALVERSION_AUTO=/ {print $2}'`
Masahiro Yamadaa6f47d22014-08-22 19:42:28 +0900158else
Rasmus Villemoes2ed1b242020-08-25 17:28:39 +0200159 echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2
Masahiro Yamadaa6f47d22014-08-22 19:42:28 +0900160 exit 1
161fi
Kyle Moffetta7b39182011-12-16 11:14:40 +0000162
163# localversion* files in the build and source directory
164res="$(collect_files localversion*)"
165if test ! "$srctree" -ef .; then
166 res="$res$(collect_files "$srctree"/localversion*)"
167fi
168
169# CONFIG_LOCALVERSION and LOCALVERSION (if set)
170res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}"
171
172# scm version string if not at a tagged commit
173if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then
174 # full scm version string
175 res="$res$(scm_version)"
176else
177 # append a plus sign if the repository is not in a clean
178 # annotated or signed tagged state (as git describe only
179 # looks at signed or annotated tags - git tag -a/-s) and
180 # LOCALVERSION= is not specified
181 if test "${LOCALVERSION+set}" != "set"; then
182 scm=$(scm_version --short)
183 res="$res${scm:++}"
Mike Frysinger92bad202008-04-08 14:00:57 -0400184 fi
Wolfgang Denk881a87e2006-02-21 17:33:04 +0100185fi
Mike Frysinger92bad202008-04-08 14:00:57 -0400186
Kyle Moffetta7b39182011-12-16 11:14:40 +0000187echo "$res"