How can I restore only the modified files on a git checkout?

Say I have a directory containing hundreds of files. I modify several of them, but afterwards I realize my changes are bad. If I do:

git checkout whole_folder

Then everything gets checked out again, and I have to recompile everything. Is there a way to make checkout affect only modified files, or do I need to run che开发者_Python百科ckout on each file separately?

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Try this:

$ git checkout `git ls-files -m`

-m lists only the modified files.

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But

git checkout -- $(git ls-files -m)

also checksout the deleted files.

If you want to checkout only the modified files this work for me:

git checkout -- $(git status -uno | grep --colour=never '#' | awk '{ print $2 $3 }' | grep --colour=never ^modified: | cut -c10-)

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What you're doing is correct, but you might want to add a disambiguating -- just in case you have a directory name that's the same as a branch name, i.e.:

git checkout -- whole_folder

git will only update the timestamps on files that it actually needs to change, so if your dependency-based build tool is using mtimes correctly, the minimal safe number of files should be rebuilt. If you're seeing different behaviour, that would be a bug.