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- #!/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: $0 [srctree]" >&2
- exit 1
- }
- cd "${1:-.}" || usage
- # Check for git and a git repo.
- if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
- atag="`git describe 2>/dev/null`"
- # Show -g<commit> if we have no tag, or just the tag
- # otherwise.
- if [ -z "${atag}" ] ; then
- printf "%s%s" -g ${head}
- else
- printf ${atag}
- fi
- # Is this git on svn?
- if git config --get svn-remote.svn.url >/dev/null; then
- printf -- '-svn%s' "`git svn find-rev $head`"
- fi
- # Update index only on r/w media
- [ -w . ] && git update-index --refresh --unmerged > /dev/null
- # Check for uncommitted changes
- if git diff-index --name-only HEAD | grep -v "^scripts/package" \
- | read dummy; then
- printf '%s' -dirty
- fi
- # All done with git
- exit
- fi
- # Check for mercurial and a mercurial repo.
- # In the git case, 'git describe' will show the latest tag, and unless we are
- # exactly on that tag, the number of commits since then, and last commit id.
- # Mimic something similar in the Mercurial case.
- if hgid=`HGRCPATH= hg id --id --tags 2>/dev/null`; then
- tag=`printf '%s' "$hgid" | cut -d' ' -f2 --only-delimited`
- # Do we have an untagged version?
- if [ -z "$tag" -o "$tag" = tip ]; then
- # current revision is not tagged, determine latest tag
- latesttag=`HGRCPATH= hg log -r. -T '{latesttag}' 2>/dev/null`
- # In case there is more than one tag on the latest tagged commit,
- # 'latesttag' will separate them by colon (:). We'll retain this.
- # In case there is no tag at all, 'null' will be returned.
- if [ "$latesttag" = "null" ]; then
- latesttag=''
- fi
- # add the commit id
- id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
- printf '%s%s%s' "${latesttag}" -hg "$id"
- else
- # current revision is tagged, just print the tag
- printf ${tag}
- fi
- # Are there uncommitted changes?
- # These are represented by + after the changeset id.
- case "$hgid" in
- *+|*+\ *) printf '%s' -dirty ;;
- esac
- # All done with mercurial
- exit
- fi
- # Check for svn and a svn repo.
- if rev=`LC_ALL=C svn info 2>/dev/null | grep '^Last Changed Rev'`; then
- rev=`echo $rev | awk '{print $NF}'`
- printf -- '-svn%s' "$rev"
- # All done with svn
- exit
- fi
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