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 [--save-scmversion] [srctree]" >&2 14 exit 1 15} 16 17scm_only=false 18srctree=. 19if test "$1" = "--save-scmversion"; then 20 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 30 31scm_version() 32{ 33 local short 34 short=false 35 36 cd "$srctree" 37 if test -e .scmversion; then 38 cat .scmversion 39 return 40 fi 41 if test "$1" = "--short"; then 42 short=true 43 fi 44 45 # Check for git and a git repo. 46 if test -d .git && head=`git rev-parse --verify --short HEAD 2>/dev/null`; then 47 48 # 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 67 fi 68 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 $head`" 72 fi 73 74 # Update index only on r/w media 75 [ -w . ] && git update-index --refresh --unmerged > /dev/null 76 77 # Check for uncommitted changes 78 if git diff-index --name-only HEAD | grep -v "^scripts/package" \ 79 | read dummy; then 80 printf '%s' -dirty 81 fi 82 83 # All done with git 84 return 85 fi 86 87 # Check for mercurial and a mercurial repo. 88 if test -d .hg && hgid=`hg id 2>/dev/null`; then 89 tag=`printf '%s' "$hgid" | cut -s -d' ' -f2` 90 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 105 fi 106 107 # 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" 111 112 # All done with svn 113 return 114 fi 115} 116 117collect_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 $scm_only; then 135 if test ! -e .scmversion; then 136 res=$(scm_version) 137 echo "$res" >.scmversion 138 fi 139 exit 140fi 141 142if test -e include/config/auto.conf; then 143 . include/config/auto.conf 144else 145 echo "Error: kernelrelease not valid - run 'make prepare' to update it" 146 exit 1 147fi 148 149# localversion* files in the build and source directory 150res="$(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 # append a plus sign if the repository is not in a clean 164 # annotated or signed tagged state (as git describe only 165 # looks at signed or annotated tags - git tag -a/-s) and 166 # LOCALVERSION= is not specified 167 if test "${LOCALVERSION+set}" != "set"; then 168 scm=$(scm_version --short) 169 res="$res${scm:++}" 170 fi 171fi 172 173echo "$res" 174