1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3# 4# This scripts adds local version information from the version 5# control systems git, mercurial (hg) and subversion (svn). 6# 7# 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# 11# 12 13usage() { 14 echo "Usage: $0 [--save-scmversion] [srctree] [branch] [kmi-generation]" >&2 15 exit 1 16} 17 18scm_only=false 19srctree=. 20android_release= 21kmi_generation= 22if test "$1" = "--save-scmversion"; then 23 scm_only=true 24 shift 25fi 26if test $# -gt 0; then 27 srctree=$1 28 shift 29fi 30if test $# -gt 0; then 31 # Extract the Android release version. If there is no match, then return 255 32 # and clear the var $android_release 33 android_release=`echo "$1" | sed -e '/android[0-9]\{2,\}/!{q255}; \ 34 s/^\(android[0-9]\{2,\}\)-.*/\1/'` 35 if test $? -ne 0; then 36 android_release= 37 fi 38 shift 39 40 if test $# -gt 0; then 41 kmi_generation=$1 42 [ $(expr $kmi_generation : '^[0-9]\+$') -eq 0 ] && usage 43 shift 44 fi 45fi 46if test $# -gt 0 -o ! -d "$srctree"; then 47 usage 48fi 49 50scm_version() 51{ 52 local short 53 short=false 54 55 cd "$srctree" 56 if test -e .scmversion; then 57 cat .scmversion 58 return 59 fi 60 if test "$1" = "--short"; then 61 short=true 62 fi 63 64 # Check for git and a git repo. 65 if test -z "$(git rev-parse --show-cdup 2>/dev/null)" && 66 head=$(git rev-parse --verify HEAD 2>/dev/null); then 67 68 if [ -n "$android_release" ] && [ -n "$kmi_generation" ]; then 69 printf '%s' "-$android_release-$kmi_generation" 70 elif [ -n "$android_release" ]; then 71 printf '%s' "-$android_release" 72 fi 73 74 # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore 75 # it, because this version is defined in the top level Makefile. 76 if [ -z "`git describe --exact-match 2>/dev/null`" ]; then 77 78 # If only the short version is requested, don't bother 79 # running further git commands 80 if $short; then 81 echo "+" 82 return 83 fi 84 # If we are past a tagged commit (like 85 # "v2.6.30-rc5-302-g72357d5"), we pretty print it. 86 # 87 # Ensure the abbreviated sha1 has exactly 12 88 # hex characters, to make the output 89 # independent of git version, local 90 # core.abbrev settings and/or total number of 91 # objects in the current repository - passing 92 # --abbrev=12 ensures a minimum of 12, and the 93 # awk substr() then picks the 'g' and first 12 94 # hex chars. 95 if atag="$(git describe --abbrev=12 2>/dev/null)"; then 96 echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),substr($(NF),0,13))}' 97 98 # If we don't have a tag at all we print -g{commitish}, 99 # again using exactly 12 hex chars. 100 else 101 head="$(echo $head | cut -c1-12)" 102 printf '%s%s' -g $head 103 fi 104 fi 105 106 # Is this git on svn? 107 if git config --get svn-remote.svn.url >/dev/null; then 108 printf -- '-svn%s' "`git svn find-rev $head`" 109 fi 110 111 # Check for uncommitted changes. 112 # First, with git-status, but --no-optional-locks is only 113 # supported in git >= 2.14, so fall back to git-diff-index if 114 # it fails. Note that git-diff-index does not refresh the 115 # index, so it may give misleading results. See 116 # git-update-index(1), git-diff-index(1), and git-status(1). 117 if { 118 git --no-optional-locks status -uno --porcelain 2>/dev/null || 119 git diff-index --name-only HEAD 120 } | grep -qvE '^(.. )?scripts/package'; then 121 printf '%s' -dirty 122 fi 123 124 # All done with git 125 return 126 fi 127 128 # Check for mercurial and a mercurial repo. 129 if test -d .hg && hgid=`hg id 2>/dev/null`; then 130 # Do we have an tagged version? If so, latesttagdistance == 1 131 if [ "`hg log -r . --template '{latesttagdistance}'`" = "1" ]; then 132 id=`hg log -r . --template '{latesttag}'` 133 printf '%s%s' -hg "$id" 134 else 135 tag=`printf '%s' "$hgid" | cut -d' ' -f2` 136 if [ -z "$tag" -o "$tag" = tip ]; then 137 id=`printf '%s' "$hgid" | sed 's/[+ ].*//'` 138 printf '%s%s' -hg "$id" 139 fi 140 fi 141 142 # Are there uncommitted changes? 143 # These are represented by + after the changeset id. 144 case "$hgid" in 145 *+|*+\ *) printf '%s' -dirty ;; 146 esac 147 148 # All done with mercurial 149 return 150 fi 151 152 # Check for svn and a svn repo. 153 if rev=`LANG= LC_ALL= LC_MESSAGES=C svn info 2>/dev/null | grep '^Last Changed Rev'`; then 154 rev=`echo $rev | awk '{print $NF}'` 155 printf -- '-svn%s' "$rev" 156 157 # All done with svn 158 return 159 fi 160} 161 162collect_files() 163{ 164 local file res= 165 166 for file; do 167 case "$file" in 168 *\~*) 169 continue 170 ;; 171 esac 172 if test -e "$file"; then 173 res="$res$(cat "$file")" 174 fi 175 done 176 echo "$res" 177} 178 179if $scm_only; then 180 if test ! -e .scmversion; then 181 res=$(scm_version) 182 echo "$res" >.scmversion 183 fi 184 exit 185fi 186 187if test -e include/config/auto.conf; then 188 . include/config/auto.conf 189else 190 echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2 191 exit 1 192fi 193 194# localversion* files in the build and source directory 195res="$(collect_files localversion*)" 196if test ! "$srctree" -ef .; then 197 res="$res$(collect_files "$srctree"/localversion*)" 198fi 199 200# CONFIG_LOCALVERSION and LOCALVERSION (if set) 201res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}" 202 203# scm version string if not at a tagged commit 204if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then 205 # full scm version string 206 res="$res$(scm_version)" 207else 208 # append a plus sign if the repository is not in a clean 209 # annotated or signed tagged state (as git describe only 210 # looks at signed or annotated tags - git tag -a/-s) and 211 # LOCALVERSION= is not specified 212 if test "${LOCALVERSION+set}" != "set"; then 213 scm=$(scm_version --short) 214 res="$res${scm:++}" 215 fi 216fi 217 218echo "$res" 219