#!/bin/sh # # This scripts adds local version information from the version # control systems git, mercurial (hg) and subversion (svn). # # If something goes wrong, send a mail the kernel build mailinglist # (see MAINTAINERS) and CC Nico Schottelius # <nico-linuxsetlocalversion -at- schottelius.org>. # # usage() { echo "Usage: $0 [--save-scmversion] [srctree]" >&2 exit 1 } scm_only=false srctree=. if test "$1" = "--save-scmversion"; then scm_only=true shift fi if test $# -gt 0; then srctree=$1 shift fi if test $# -gt 0 -o ! -d "$srctree"; then usage fi scm_version() { local short short=false cd "$srctree" if test -e .scmversion; then cat .scmversion return fi if test "$1" = "--short"; then short=true fi # Check for git and a git repo. if test -d .git && head=`git rev-parse --verify --short HEAD 2>/dev/null`; then # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore # it, because this version is defined in the top level Makefile. if [ -z "`git describe --exact-match 2>/dev/null`" ]; then # If only the short version is requested, don't bother # running further git commands if $short; then echo "+" return fi # If we are past a tagged commit (like # "v2.6.30-rc5-302-g72357d5"), we pretty print it. if atag="`git describe 2>/dev/null`"; then echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}' # If we don't have a tag at all we print -g{commitish}. else printf '%s%s' -g $head fi fi # Is this git on svn? if git config --get svn-remote.svn.url >/dev/null; then printf -- '-svn%s' "`git svn find-rev $head`" fi # Update index only on r/w media [ -w . ] && git update-index --refresh --unmerged > /dev/null # Check for uncommitted changes if git diff-index --name-only HEAD | grep -v "^scripts/package" \ | read dummy; then printf '%s' -dirty fi # All done with git return fi # Check for mercurial and a mercurial repo. if test -d .hg && hgid=`hg id 2>/dev/null`; then tag=`printf '%s' "$hgid" | cut -s -d' ' -f2` # Do we have an untagged version? if [ -z "$tag" -o "$tag" = tip ]; then id=`printf '%s' "$hgid" | sed 's/[+ ].*//'` printf '%s%s' -hg "$id" fi # Are there uncommitted changes? # These are represented by + after the changeset id. case "$hgid" in *+|*+\ *) printf '%s' -dirty ;; esac # All done with mercurial return fi # Check for svn and a svn repo. if rev=`svn info 2>/dev/null | grep '^Last Changed Rev'`; then rev=`echo $rev | awk '{print $NF}'` printf -- '-svn%s' "$rev" # All done with svn return fi } collect_files() { local file res for file; do case "$file" in *\~*) continue ;; esac if test -e "$file"; then res="$res$(cat "$file")" fi done echo "$res" } if $scm_only; then if test ! -e .scmversion; then res=$(scm_version) echo "$res" >.scmversion fi exit fi if test -e include/config/auto.conf; then . include/config/auto.conf else echo "Error: kernelrelease not valid - run 'make prepare' to update it" exit 1 fi # localversion* files in the build and source directory res="$(collect_files localversion*)" if test ! "$srctree" -ef .; then res="$res$(collect_files "$srctree"/localversion*)" fi # CONFIG_LOCALVERSION and LOCALVERSION (if set) res="${res}${CONFIG_LOCALVERSION}${LOCALVERSION}" # scm version string if not at a tagged commit if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then # full scm version string res="$res$(scm_version)" else # apped a plus sign if the repository is not in a clean tagged # state and LOCALVERSION= is not specified if test "${LOCALVERSION+set}" != "set"; then scm=$(scm_version --short) res="$res${scm:++}" fi fi echo "$res"