kbuild,setlocalversion: shorten the make time when using svn
[linux-2.6.git] / scripts / setlocalversion
old mode 100644 (file)
new mode 100755 (executable)
index 9a23825..f1c4b35
@@ -9,14 +9,57 @@ usage() {
 cd "${1:-.}" || usage
 
 # Check for git and a git repo.
-if head=`git rev-parse --verify HEAD 2>/dev/null`; then
+if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
        # Do we have an untagged version?
-       if  [ "`git name-rev --tags HEAD`" = "HEAD undefined" ]; then
-               printf '%s%s' -g `echo "$head" | cut -c1-8`
+       if git name-rev --tags HEAD | grep -E '^HEAD[[:space:]]+(.*~[0-9]*|undefined)$' > /dev/null; then
+               if tag=`git describe 2>/dev/null`; then
+                       echo $tag | awk -F- '{printf("-%05d-%s", $(NF-1),$(NF))}'
+               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
 
        # Are there uncommitted changes?
-       if git diff-files | read dummy; then
+       git update-index --refresh --unmerged > /dev/null
+       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