LXR linux/scripts/setlocalversion

   1#!/bin/sh
   2#
   3# This scripts adds local version information from the version
   4# control systems git, mercurial (hg) and subversion (svn).
   5#
   6# If something goes wrong, send a mail the kernel build mailinglist
   7# (see MAINTAINERS) and CC Nico Schottelius
   8# <nico-linuxsetlocalversion -at- schottelius.org>.
   9#
  10#
  11
  12usage() {
  13        echo "Usage: $0 [srctree]" >&2
  14        exit 1
  15}
  16
  17cd "${1:-.}" || usage
  18
  19# Check for git and a git repo.
  20if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
  21
  22        # If we are at a tagged commit (like "v2.6.30-rc6"), we ignore it,
  23        # because this version is defined in the top level Makefile.
  24        if [ -z "`git describe --exact-match 2>/dev/null`" ]; then
  25
  26                # If we are past a tagged commit (like "v2.6.30-rc5-302-g72357d5"),
  27                # we pretty print it.
  28                if atag="`git describe 2>/dev/null`"; then
  29                        echo "$atag" | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
  30
  31                # If we don't have a tag at all we print -g{commitish}.
  32                else
  33                        printf '%s%s' -g $head
  34                fi
  35        fi
  36
  37        # Is this git on svn?
  38        if git config --get svn-remote.svn.url >/dev/null; then
  39                printf -- '-svn%s' "`git svn find-rev $head`"
  40        fi
  41
  42        # Update index only on r/w media
  43        [ -w . ] && git update-index --refresh --unmerged > /dev/null
  44
  45        # Check for uncommitted changes
  46        if git diff-index --name-only HEAD | grep -v "^scripts/package" \
  47            | read dummy; then
  48                printf '%s' -dirty
  49        fi
  50
  51        # All done with git
  52        exit
  53fi
  54
  55# Check for mercurial and a mercurial repo.
  56if hgid=`hg id 2>/dev/null`; then
  57        tag=`printf '%s' "$hgid" | cut -d' ' -f2`
  58
  59        # Do we have an untagged version?
  60        if [ -z "$tag" -o "$tag" = tip ]; then
  61                id=`printf '%s' "$hgid" | sed 's/[+ ].*//'`
  62                printf '%s%s' -hg "$id"
  63        fi
  64
  65        # Are there uncommitted changes?
  66        # These are represented by + after the changeset id.
  67        case "$hgid" in
  68                *+|*+\ *) printf '%s' -dirty ;;
  69        esac
  70
  71        # All done with mercurial
  72        exit
  73fi
  74
  75# Check for svn and a svn repo.
  76if rev=`svn info 2>/dev/null | grep '^Last Changed Rev'`; then
  77        rev=`echo $rev | awk '{print $NF}'`
  78        printf -- '-svn%s' "$rev"
  79
  80        # All done with svn
  81        exit
  82fi
  83