Reset file mode (chmod) changes when making a Git commit

Sometimes you copy files into your GitHub repository on top of existing files (for example, syncing some code from an external source).

This can cause the file mod / chmod to differ, for example some files are 0644 in the repo and 0755 from the folder you copy. Git picks up on this which can cause a lot of confusing diffs to sift through.

With this one-liner you can remove all the chmod file changes before making a commit:

git diff -p -R --no-ext-diff --no-color \
    | grep -E "^(diff|(old|new) mode)" --color=never  \
    | git apply

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