On Wed, Mar 09, 2005 at 06:25:56PM -0800, Linus Torvalds wrote: > On Thu, 10 Mar 2005, Benjamin Herrenschmidt wrote: > > > > BTW, Linus: Any chance you ever change something to version or > > extraversion in bk just after a release ? I know I already ask and it > > degenerated into a flamefest, and I don't know if that is specifically > > the case now, but I keep getting report of people saying "I have a bug > > in 2.6.xx" while in fact, they have some kind of bk clone of sometime > > after 2.6.xx... > > The answer is the same: I'd still like to have somebody (preferably Sam) > who is comfortable with all the build scripts get a revision-control- > specific version at build-time, so that BK users would get the top-of-tree > key value, and other people could get some CVS revision or something.
I've got something that fixes up the version by adding -BK and then 8 hex characters from the md5 hash of the top of tree changeset key. I was starting to work on stuffing that same value into a /proc file so that you can figure out what the tree looked like, but at the moment, you at least get a semi-random string appended to the version. I resent the patch yesterday, but I'll put it here, too: > I have this dim memory that Sam might even have had some early trials, but > maybe thats just wishful thinking.. Sam? I think that was my patch - Sam was going to look at it, but I suspect it got lost in more interesting things. :) (I sent a better described version to Andrew yesterday, if you want to grab that description and use it instead.) Signed-Off-By: Ryan Anderson <[EMAIL PROTECTED]> diff -Nru a/Makefile b/Makefile --- a/Makefile 2005-03-09 02:51:15 -05:00 +++ b/Makefile 2005-03-09 02:51:15 -05:00 @@ -550,6 +550,24 @@ #export INSTALL_PATH=/boot +# If CONFIG_LOCALVERSION_AUTO is set, we automatically perform some tests +# and try to determine if the current source tree is a release tree, of any sort, +# or if is a pure development tree. +# A 'release tree' is any tree with a BitKeeper TAG associated with it. +# The primary goal of this is to make it safe for a native BitKeeper user to +# build a release tree (i.e, 2.6.9) and also to continue developing against the +# current Linus tree, without having the Linus tree overwrite the 2.6.9 tree +# when installed. +# +# (In the future, CVS and SVN support will be added as well.) + +ifeq ($(CONFIG_LOCALVERSION_AUTO),y) + ifeq ($(shell ls -d $(srctree)/BitKeeper 2>/dev/null),$(srctree)/BitKeeper) + localversion-bk := $(shell $(srctree)/scripts/setlocalversion.sh $(srctree) $(objtree)) + LOCALVERSION := $(LOCALVERSION)$(localversion-bk) + endif +endif + # # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory # relocations required by build roots. This is not defined in the diff -Nru a/init/Kconfig b/init/Kconfig --- a/init/Kconfig 2005-03-09 02:51:15 -05:00 +++ b/init/Kconfig 2005-03-09 02:51:15 -05:00 @@ -69,6 +69,18 @@ object and source tree, in that order. Your total string can be a maximum of 64 characters. +config LOCALVERSION_AUTO + bool "Automatically append version information to the version string" + default y + help + This will try to automatically determine if the current tree is a + release tree by looking for BitKeeper tags that belong to the + current top of tree revision. + A string of the format -BKxxxxxxxx will be added to the + localversion. The string generated by this will be appended + after any matching localversion* files, and after the + value set in CONFIG_LOCALVERSION + config SWAP bool "Support for paging of anonymous memory (swap)" depends on MMU diff -Nru a/scripts/setlocalversion b/scripts/setlocalversion --- /dev/null Wed Dec 31 16:00:00 196900 +++ b/scripts/setlocalversion 2005-03-09 02:51:15 -05:00 @@ -0,0 +1,62 @@ +#!/usr/bin/perl +# Copyright 2004 - Ryan Anderson <[EMAIL PROTECTED]> GPL v2 + +use strict; +use warnings; +use Digest::MD5; +require 5.006; + +if (@ARGV != 2) { + print <<EOT; +Usage: setlocalversion <srctree> <objtree> +EOT + exit(1); +} + +my $debug = 0; + +my ($srctree,$objtree) = @ARGV; + +my @LOCALVERSIONS = (); + +# BitKeeper Version Checks + +# We are going to use the following commands to try and determine if +# this repository is at a Version boundary (i.e, 2.6.10 vs 2.6.10 + some patches) +# We currently assume that all meaningful version boundaries are marked by a tag. +# We don't care what the tag is, just that something exists. + [EMAIL PROTECTED] ~/dev/linux/local$ T=`bk changes -r+ -k` [EMAIL PROTECTED] ~/dev/linux/local$ bk prs -h -d':TAG:\n' -r$T + +sub do_bk_checks { + chdir($srctree); + my $changeset = `bk changes -r+ -k`; + chomp $changeset; + my $tag = `bk prs -h -d':TAG:' -r'$changeset'`; + + printf("ChangeSet Key = '%s'\nTAG = '%s'\n", $changeset, $tag) if ($debug > 0); + + if (length($tag) == 0) { + # We do not have a tag at the Top of Tree, so we need to generate a localversion file + # We'll use the given $changeset as input into this. + my $localversion = Digest::MD5::md5_hex($changeset); + $localversion = substr($localversion,0,8); + + printf("localversion = '%s'\n",$localversion) if ($debug > 0); + + push @LOCALVERSIONS, "BK" . $localversion; + + } +} + + +if ( -d "BitKeeper" ) { + my $bk = `which bk`; + chomp $bk; + if (length($bk) != 0) { + do_bk_checks(); + } +} + +printf "-%s\n", join("-",@LOCALVERSIONS) if (scalar @LOCALVERSIONS > 0); diff -Nru a/scripts/setlocalversion.sh b/scripts/setlocalversion.sh --- /dev/null Wed Dec 31 16:00:00 196900 +++ b/scripts/setlocalversion.sh 2005-03-09 02:51:15 -05:00 @@ -0,0 +1,26 @@ +#!/bin/sh + +BK=`which bk` +MD5SUM=`which md5sum` + +srctree=$1 +objtree=$2 + +if [ "$BK" == "" ]; +then + echo "scripts/setlocalversion.sh: Failed to find BK, not appending a -BK* version" >&2 + exit 0 +fi + +if [ "$MD5SUM" == "" ]; +then + echo "scripts/setlocalversion.sh: Couldn't find md5sum, trying Perl version instead." >&2 + exec perl scripts/setlocalversion $srctree $objtree +fi + +cd $srctree +changeset=`$BK changes -r+ -k` +tag=`$BK prs -h -d':TAG:' -r'$changeset'` +if [ "$tag" == "" ]; then + echo -n $changeset | md5sum | awk '{printf "-BK%s",substr($1,1,8)}' +fi -- Ryan Anderson sometimes Pug Majere - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/