Using git, how do I ignore a file in one branch but have it committed in another branch?

This solution appears to work only for certain, patched versions of git. See a new answer pointing to workarounds and another answer and subsequent comments for a hint which versions may work.

I wrote a blog post on how to effectively use the excludesfile for different branches, like one for public github and one for heroku deployment.

Here’s the quick and dirty:

$ git branch public_viewing
$ cd .git/
$ touch info/exclude_from_public_viewing
$ echo "path/to/secret/file" > info/exclude_from_public_viewing 

then in the .git/config file add these lines:

[core]
excludesfile = +info/exclude


[branch "public_viewing"]
excludesfile = +info/exclude_from_public_viewing

Now all the global ignore stuff is in the info/exclude file and the branch specific is in the info/exclude_from_public_viewing

Hope that helps!

http://cogniton-mind.tumblr.com/post/1423976659/howto-gitignore-for-different-branches

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