Created
June 26, 2012 06:14
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Git alias to amend a specific commit earlier in the tree
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| amend-commit = "!f() { START=`(git symbolic-ref -q HEAD || git rev-parse HEAD) | cut -d"/" -f 3`; git checkout -q $1 && git commit --amend && git rebase --onto HEAD $1 $START; }; f" |
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Written following a brief discussion in #git on freenode (based on a suggestion by constant and suggested implementation by frogonwheels). This alias makes amending earlier commit messages easier, but is a bit dangerous as if there are branches based on the earlier commit other than that which is currently checked out, they will need to be rebased manually onto the new, amended commit.
Works even if you're in a detached HEAD state, but as above, any branches will need to be manually rebased.