Re: Individual file snapshots

[Mark Lodato <lodatom@gmail.com>]

On Fri, Feb 12, 2010 at 7:47 PM, Junio C Hamano <gitster@pobox.com> wrote:
> Mark Lodato <lodatom@gmail.com> writes:
>
>> The basic steps are:
>>
>> backup .git/index
>> git add -a
>> git write-tree
>> git commit-tree
>> restore .git/index
>
> Instead of doing that, you might want to consider
>
>        GIT_INDEX_FILE=...some-temporary-file...
>        export GIT_INDEX_FILE
>
> and run everything as if that is the index throughout your script.  That
> way, if your script ever failed in the middle, you won't have to worry
> about a broken index file.

In the actual script, I copied the index file back if any error
occured.  Still, your idea sounds better, so I just updated it to use
this variable instead.  I still remove the temporary file on error,
but if something goes wrong, at least the index won't be hosed.


On Sat, Feb 13, 2010 at 2:01 AM, Ron Garret <ron1@flownet.com> wrote:
> Moving the index around seems kinda hacky.  You probably want git-mktree.

git-mktree is way too complicated.  I would have to parse the index
and call git-mktree for each directory.  There is already a program to
do this: git-write-tree :)  Besides, using GIT_INDEX_FILE as suggested
by Junio allows me to leave the original index file intact.

--
Mark