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# It was originally copied from the Linux kernel v3.2.0-rc4 and modified 7# to support the U-Boot build-system. 8# 9 10usage() { 11 echo "Usage: $0 [--save-scmversion] [srctree]" >&2 12 exit 1 13} 14 15scm_only=false 16srctree=. 17if test "$1" = "--save-scmversion"; then 18 scm_only=true 19 shift 20fi 21if test $# -gt 0; then 22 srctree=$1 23 shift 24fi 25if test $# -gt 0 -o ! -d "$srctree"; then 26 usage 27fi 28 29scm_version() 30{ 31 local short 32 short=false 33 34 cd "$srctree" 35 if test -e .scmversion; then 36 cat .scmversion 37 return 38 fi 39 if test "$1" = "--short"; then 40 short=true 41 fi 42 43 # Check for git and a git repo. 44 if test -e .git && head=`git rev-parse --verify --short HEAD 2>/dev/null`; then 45 46 # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore 47 # it, because this version is defined in the top level Makefile. 48 if [ -z "`git describe --exact-match 2>/dev/null`" ]; then 49 50 # If only the short version is requested, don't bother 51 # running further git commands 52 if $short; then 53 echo "+" 54 return 55 fi 56 # If we are past a tagged commit (like 57 # "v2.6.30-rc5-302-g72357d5"), we pretty print it. 58 if atag="`git describe 2>/dev/null`"; then 59 echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}' 60 61 # If we don't have a tag at all we print -g{commitish}. 62 else 63 printf '%s%s' -g $head 64 fi 65 fi 66 67 # Is this git on svn? 68 if git config --get svn-remote.svn.url >/dev/null; then 69 printf -- '-svn%s' "`git svn find-rev $head`" 70 fi 71 72 # Update index only on r/w media 73 [ -w . ] && git update-index --refresh --unmerged > /dev/null 74 75 # Check for uncommitted changes 76 if git diff-index --name-only HEAD | grep -v "^scripts/package" \ 77 | read dummy; then 78 printf '%s' -dirty 79 fi 80 81 # All done with git 82 return 83 fi 84 85 # Check for mercurial and a mercurial repo. 86 if test -d .hg && hgid=`hg id 2>/dev/null`; then 87 # Do we have an tagged version? If so, latesttagdistance == 1 88 if [ "`hg log -r . --template '{latesttagdistance}'`" == "1" ]; then 89 id=`hg log -r . --template '{latesttag}'` 90 printf '%s%s' -hg "$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=`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 "$res" >.scmversion 140 fi 141 exit 142fi 143 144#if test -e include/config/auto.conf; then 145# . include/config/auto.conf 146#else 147# echo "Error: kernelrelease not valid - run 'make prepare' to update it" 148# exit 1 149#fi 150CONFIG_LOCALVERSION= 151CONFIG_LOCALVERSION_AUTO=y 152 153# localversion* files in the build and source directory 154res="$(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