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 $head`" 72 fi 73 74 # Update index only on r/w media 75 [ -w . ] && git update-index --refresh --unmerged > /dev/null 76 77 # Check for uncommitted changes 78 if git diff-index --name-only HEAD | grep -v "^scripts/package" \ 79 | read dummy; then 80 printf '%s' -dirty 81 fi 82 83 # All done with git 84 return 85 fi 86 87 # Check for mercurial and a mercurial repo. 88 if test -d .hg && hgid=`hg id 2>/dev/null`; then 89 # Do we have an tagged version? If so, latesttagdistance == 1 90 if [ "`hg log -r . --template '{latesttagdistance}'`" == "1" ]; then 91 id=`hg log -r . --template '{latesttag}'` 92 printf '%s%s' -hg "$id" 93 else 94 tag=`printf '%s' "$hgid" | cut -d' ' -f2` 95 if [ -z "$tag" -o "$tag" = tip ]; then 96 id=`printf '%s' "$hgid" | sed 's/[+ ].*//'` 97 printf '%s%s' -hg "$id" 98 fi 99 fi 100 101 # Are there uncommitted changes? 102 # These are represented by + after the changeset id. 103 case "$hgid" in 104 *+|*+\ *) printf '%s' -dirty ;; 105 esac 106 107 # All done with mercurial 108 return 109 fi 110 111 # Check for svn and a svn repo. 112 if rev=`svn info 2>/dev/null | grep '^Last Changed Rev'`; then 113 rev=`echo $rev | awk '{print $NF}'` 114 printf -- '-svn%s' "$rev" 115 116 # All done with svn 117 return 118 fi 119} 120 121collect_files() 122{ 123 local file res 124 125 for file; do 126 case "$file" in 127 *\~*) 128 continue 129 ;; 130 esac 131 if test -e "$file"; then 132 res="$res$(cat "$file")" 133 fi 134 done 135 echo "$res" 136} 137 138if $scm_only; then 139 if test ! -e .scmversion; then 140 res=$(scm_version) 141 echo "$res" >.scmversion 142 fi 143 exit 144fi 145 146if test -e include/config/auto.conf; then 147 . include/config/auto.conf 148else 149 echo "Error: kernelrelease not valid - run 'make prepare' to update it" 150 exit 1 151fi 152 153# localversion* files in the build and source directory 154res="$(collect_files localversion*)" 155if test ! "$srctree" -ef .; then 156 res="$res$(collect_files "$srctree"/localversion*)" 157fi 158 159# CONFIG_LOCALVERSION and LOCALVERSION (if set) 160res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}" 161 162# scm version string if not at a tagged commit 163if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then 164 # full scm version string 165 res="$res$(scm_version)" 166else 167 # append a plus sign if the repository is not in a clean 168 # annotated or signed tagged state (as git describe only 169 # looks at signed or annotated tags - git tag -a/-s) and 170 # LOCALVERSION= is not specified 171 if test "${LOCALVERSION+set}" != "set"; then 172 scm=$(scm_version --short) 173 res="$res${scm:++}" 174 fi 175fi 176 177echo "$res" 178