linux/scripts/setlocalversion
Theodore Ts'o d882421f4e kbuild: change CONFIG_LOCALVERSION_AUTO to use a git-describe-ish format
Change the automatic local version to have the form -nnnnn-gSHA1SUMID,
where 'nnnnn' is the number of commits since the last tag (i.e.,
2.6.21-rc7).  This makes it much more likely that the package names created
for the kernel will look "newer" to a package manager.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-01-28 23:14:37 +01:00

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#!/bin/sh
# Print additional version information for non-release trees.
usage() {
echo "Usage: $0 [srctree]" >&2
exit 1
}
cd "${1:-.}" || usage
# Check for git and a git repo.
if head=`git rev-parse --verify HEAD 2>/dev/null`; then
# Do we have an untagged version?
if git name-rev --tags HEAD | grep -E '^HEAD[[:space:]]+(.*~[0-9]*|undefined)$' > /dev/null; then
git describe | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
fi
# Are there uncommitted changes?
if git diff-index HEAD | 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