X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=scripts%2Fsetlocalversion;h=46989b88d7345d233ce5d734e2ed9845784df4d0;hb=8de016e2bd8ebce9b3728462085bef51179841a6;hp=7c805c8fccd26b7a839079ba9e5268046cb392e9;hpb=aaebf4332018980fef4e601d1b5a6e52dd9e9ae4;p=safe%2Fjmp%2Flinux-2.6

diff --git a/scripts/setlocalversion b/scripts/setlocalversion
old mode 100644
new mode 100755
index 7c805c8..46989b8
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -1,56 +1,82 @@
-#!/usr/bin/perl
-# Copyright 2004 - Ryan Anderson <ryan@michonline.com>  GPL v2
-
-use strict;
-use warnings;
-use Digest::MD5;
-require 5.006;
-
-if (@ARGV != 1) {
-	print <<EOT;
-Usage: setlocalversion <srctree>
-EOT
-	exit(1);
+#!/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
 }
 
-my ($srctree) = @ARGV;
-chdir($srctree);
+cd "${1:-.}" || usage
 
-my @LOCALVERSIONS = ();
+# Check for git and a git repo.
+if head=`git rev-parse --verify --short HEAD 2>/dev/null`; then
 
-# We are going to use the following commands to try and determine if this
-# repository is at a Version boundary (i.e, 2.6.10 vs 2.6.10 + some patches) We
-# currently assume that all meaningful version boundaries are marked by a tag.
-# We don't care what the tag is, just that something exists.
+	# 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
 
-# Git/Cogito store the top-of-tree "commit" in .git/HEAD
-# A list of known tags sits in .git/refs/tags/
-#
-# The simple trick here is to just compare the two of these, and if we get a
-# match, return nothing, otherwise, return a subset of the SHA-1 hash in
-# .git/HEAD
-
-sub do_git_checks {
-	open(H,"<.git/HEAD") or return;
-	my $head = <H>;
-	chomp $head;
-	close(H);
-
-	opendir(D,".git/refs/tags") or return;
-	foreach my $tagfile (grep !/^\.{1,2}$/, readdir(D)) {
-		open(F,"<.git/refs/tags/" . $tagfile) or return;
-		my $tag = <F>;
-		chomp $tag;
-		close(F);
-		return if ($tag eq $head);
-	}
-	closedir(D);
-
-	push @LOCALVERSIONS, "g" . substr($head,0,8);
-}
+		# 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 ( -d ".git") {
-	do_git_checks();
-}
+		# 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"
 
-printf "-%s\n", join("-",@LOCALVERSIONS) if (scalar @LOCALVERSIONS > 0);
+	# All done with svn
+	exit
+fi