buildrootschalter/support/scripts/setlocalversion
Peter Korsgaard 33699aac06 setlocalversion: sync with Linux kernel version (2.6.34)
Brings a number of fixes, and most importantly no longer tries to figure
out if the tree contains uncommitted changes when using svn, as that can
be very slow.

This only syncs with setlocalversion as of 2.6.34 as later kernel versions
aren't directly compatible with our use cases since 09155120c (kbuild:
Clean up and speed up the localversion logic).

We still have one delta from the kernel version (setlocalversion: fix i18n
issue with svn), as that has only later been fixed in the kernel version.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2013-09-04 11:58:12 +02:00

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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
# 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=`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