git-archive for files changed in revision range

[Graham Cox <graham@grahamcox.co.uk>]

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Hiya,

We have a small project that is being managed in a Git repository (MSysGit to 
be exact) - mostly for backups and so on. The project is a mod for the 
computer game Civilization 4. (Actually a mod of a mod, but still...)  As 
such, to release the mod to other people to actually use the only thing that 
needs to be released is all of the files that have actually been changed. (The 
actual git repository contains ~700MB of files, the vast majority of which 
haven't changed since the initial import and so don't need to be downloaded by 
people).

I've managed to make it produce an archive that contains only the files that 
have changed by using a combination of git-archive and git-whatchanged, along 
with grep and sed, but it's kinda unwieldly. Is there a better way of doing 
this?

The command line I used was something like (This is mostly from memory):
git-archive --format=zip . `git-whatchanged <start>..HEAD --pretty=oneline 
  | grep '^:' | sed 's/^.*\t//'` > release.zip

To produce a zip containing all of the modified and added files for the 
revision range <start>..HEAD.

-- 
Graham Cox


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