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]" >&2 15 exit 1 16} 17 18scm_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 31 32scm_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 "$1" = "--short"; then 43 short=true 44 fi 45 46 # Check for git and a git repo. 47 if test -z "$(git rev-parse --show-cdup 2>/dev/null)" && 48 head=`git rev-parse --verify --short HEAD 2>/dev/null`; then 49 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. 52 if [ -z "`git describe --exact-match 2>/dev/null`" ]; then 53 54 # If only the short version is requested, don't bother 55 # running further git commands 56 if $short; then 57 echo "+" 58 return 59 fi 60 # If we are past a tagged commit (like 61 # "v2.6.30-rc5-302-g72357d5"), we pretty print it. 62 if atag="`git describe 2>/dev/null`"; then 63 echo "$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 73 printf -- '-svn%s' "`git svn find-rev $head`" 74 fi 75 76 # Check for uncommitted changes 77 if git status -uno --porcelain | grep -qv '^.. scripts/package'; then 78 printf '%s' -dirty 79 fi 80 81 # All done with git 82 return 83 fi 84 85 # Check for mercurial and a mercurial repo. 86 if test -d .hg && hgid=`hg id 2>/dev/null`; then 87 # Do we have an tagged version? If so, latesttagdistance == 1 88 if [ "`hg log -r . --template '{latesttagdistance}'`" == "1" ]; then 89 id=`hg log -r . --template '{latesttag}'` 90 printf '%s%s' -hg "$id" 91 else 92 tag=`printf '%s' "$hgid" | cut -d' ' -f2` 93 if [ -z "$tag" -o "$tag" = tip ]; then 94 id=`printf '%s' "$hgid" | sed 's/[+ ].*//'` 95 printf '%s%s' -hg "$id" 96 fi 97 fi 98 99 # Are there uncommitted changes? 100 # These are represented by + after the changeset id. 101 case "$hgid" in 102 *+|*+\ *) printf '%s' -dirty ;; 103 esac 104 105 # All done with mercurial 106 return 107 fi 108 109 # Check for svn and a svn repo. 110 if rev=`LANG= LC_ALL= LC_MESSAGES=C svn info 2>/dev/null | grep '^Last Changed Rev'`; then 111 rev=`echo $rev | awk '{print $NF}'` 112 printf -- '-svn%s' "$rev" 113 114 # All done with svn 115 return 116 fi 117} 118 119collect_files() 120{ 121 local file res 122 123 for file; do 124 case "$file" in 125 *\~*) 126 continue 127 ;; 128 esac 129 if test -e "$file"; then 130 res="$res$(cat "$file")" 131 fi 132 done 133 echo "$res" 134} 135 136if $scm_only; then 137 if test ! -e .scmversion; then 138 res=$(scm_version) 139 echo "$res" >.scmversion 140 fi 141 exit 142fi 143 144if test -e include/config/auto.conf; then 145 . include/config/auto.conf 146else 147 echo "Error: kernelrelease not valid - run 'make prepare' to update it" >&2 148 exit 1 149fi 150 151# localversion* files in the build and source directory 152res="$(collect_files localversion*)" 153if test ! "$srctree" -ef .; then 154 res="$res$(collect_files "$srctree"/localversion*)" 155fi 156 157# CONFIG_LOCALVERSION and LOCALVERSION (if set) 158res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}" 159 160# scm version string if not at a tagged commit 161if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then 162 # full scm version string 163 res="$res$(scm_version)" 164else 165 # append a plus sign if the repository is not in a clean 166 # annotated or signed tagged state (as git describe only 167 # looks at signed or annotated tags - git tag -a/-s) and 168 # LOCALVERSION= is not specified 169 if test "${LOCALVERSION+set}" != "set"; then 170 scm=$(scm_version --short) 171 res="$res${scm:++}" 172 fi 173fi 174 175echo "$res" 176