meaning of HEAD in context of filter-branch

meaning of HEAD in context of filter-branch

[bill lam]

I tried to process some files that changed between each commit using
the command

git filter-branch --tree-filter 'git diff --name-only HEAD^.. | foo

however it seems that HEAD is fixed to mean the HEAD of the current
tip before starting git-filter-branch, by trying like this

$ git rev-list -1 HEAD^
2bf95faed2d51c338ea6fa93e7bb6cc9c1bc759b

git filter-branch --tree-filter 'git rev-list -1 HEAD^ >>/tmp/sha' -- --all
$ cat /tmp/sha
2bf95faed2d51c338ea6fa93e7bb6cc9c1bc759b
2bf95faed2d51c338ea6fa93e7bb6cc9c1bc759b
2bf95faed2d51c338ea6fa93e7bb6cc9c1bc759b
2bf95faed2d51c338ea6fa93e7bb6cc9c1bc759b


how to get the HEAD during filter-branch or other workaround?

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Re: meaning of HEAD in context of filter-branch

[Andreas Schwab]

bill lam <cbill.lam@gmail.com> writes:

> how to get the HEAD during filter-branch or other workaround?

>From git-filter-index(1):

   Filters
       The filters are applied in the order as listed below. The <command>
       argument is always evaluated in the shell context using the eval
       command (with the notable exception of the commit filter, for technical
       reasons). Prior to that, the $GIT_COMMIT environment variable will be
                                    ^^^^^^^^^^^
       set to contain the id of the commit being rewritten.

Andreas.

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Re: meaning of HEAD in context of filter-branch

[bill lam]

On Sun, 11 Oct 2009, Andreas Schwab wrote:
>        reasons). Prior to that, the $GIT_COMMIT environment variable will be
>                                     ^^^^^^^^^^^

Thanks. This is what I should use.

-- 
regards,
====================================================
GPG key 1024D/4434BAB3 2008-08-24
gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3