From: Junio C Hamano <junkio@cox.net>
Date: Wed, 14 Dec 2005 08:37:10 GMT
Subject: Re: new file leaked onto release branch
Message-ID: <7v3bkw2hxl.fsf@assigned-by-dhcp.cox.net>
In-Reply-To: <200512140257.03975.len.brown@intel.com>

Len Brown <len.brown@intel.com> writes:

> Somehow a new file leaked from my "acpica" branch onto my "release" branch
> without me pulling "acpica" into "release".

I'll take a look at your "broken" branch later today (but will
go to bed first ;-), so please leave it around.

> I package up a tar-file for the remote machines with
> git-tar-tree $BRANCH $REPO | gzip -1 > $TARFILE
> But I still need to generate a patch containing all the local
> changes that I haven't checked into git yet.

Let me understand what you have correctly:

    You have the latest commit, changes needed to be tested in
    working tree, and index is somewhere in-between, because of
    "git-update-index --add" you did for patch generation; but
    ideally you would want to keep HEAD and index in sync.

And you need a way to do the above tar-tree + patch equivanent
to move what you have in your working tree to other machines for
pre-commit testing.  Some random thoughts on ways to do it.

(1) NFS with "make O=dir/to/store/output/files/"?

(2) Do you have git on other build boxes?  Perhaps

    mainbox$ edit on "acpica" branch
    mainbox$ git checkout -b build-test ;# branch from it
    mainbox$ git add some files
    mainbox$ git commit -a -m "Build test $(date)" ;# take all

    mainbox$ ssh i386box
    i386box$ git pull mainbox:/home/lnx/.git build-test
    Fast forward.
    i386box$ make ;# happy

    mainbox$ git checkout acpica ; git pull . build-test ;# fast forward

(3) Tarball approach, but taking the local modifications along
    as well:

    mainbox$ git update-index all-changed-paths-not-just-add
    mainbox$ git-tar-tree $(git-write-tree) $REPO | gzip >$TARFILE
    mainbox$ git reset ;# unregisters all mods since HEAD from index
    mainbox$ scp $TARFILE i386box:/home/lnx/

I suspect the last one is the least disruptive to your existing
workflow.