linux-yocto/scripts/setlocalversion

#!/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

# 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 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
exit

fi

Check for mercurial and a mercurial repo.

if hgid=hg id 2>/dev/null; then tag=printf '%s' "$hgid" | cut -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
exit

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
exit

fi