Re: linux-next: build problem with nfs tree (Was: Re:[mmotm][PATCH] fix ia64 build error)

[Stephen Rothwell]

Hi Andrew,

On Fri, 16 Jan 2009 13:49:30 +1100 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:
>
> On Thu, 15 Jan 2009 17:59:17 -0800 Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
> >
> > I do most of my gitting across a DSL connection.  It makes GUIs
> > painful.
> 
> Yeah, I will think on it ...

With the help of Paul Mackerras, I have come up with the shell script
below.  You run it with the commit id, the tag of the tree you care
about (e.g. next-20080115)(it defaults to the current top of tree) and
the name of the branch the represents Linus' tree (default to
origin/master).  It will spit out the (or a) tree that contains the
commit you asked about.

-------------------------------------------------------------------------
#!/bin/bash

commit=$1
[ "$commit" ] || {
	echo "$0: <commit id> [<top tag> [<linus branch>]]" 1>&2
	exit 1
}

top=$2
[ "$top" ] || top=HEAD

linus=$3
[ "$linus" ] || linus=origin/master

base=$(git merge-base "$linus" "$top")

git log --first-parent --pretty='format:%H %P' "$base".."$top" |
while read m p1 p2
do
	[ "$p2" ] || continue
	git rev-list $base..$p2 | grep -q "$commit" || continue
	branch=$(git show $m | sed -n "s/[ 	]*Merge .* '\([^']*\)'/\1/p")
	tree=${branch%%/*}
	[ "$tree" = "quilt" ] && tree=${branch##*/}
	echo "$tree"
	break
done

exit 0
----------------------------------------------------------------------------
-- 
Cheers,
Stephen Rothwell                    sfr@xxxxxxxxxxxxxxxx
http://www.canb.auug.org.au/~sfr/
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