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