Undoing Changes: git revert

Undoing Changes: git revert

Git revert creates a new commit that undoes the changes introduced by a specified commit. Unlike reset, revert is safe for shared repositories because it adds to history rather than rewriting it.

Reverting a Commit

git revert abc1234

Replace abc1234 with the commit hash you want to undo. Git will create a new commit with the opposite changes, effectively cancelling out the original commit's effect. Your history shows both the original commit and the revert commit.

Reverting Without Opening an Editor

git revert abc1234 --no-edit

This automatically uses the default revert message without opening your text editor.

Reverting a Range of Commits

git revert HEAD~3..HEAD

This reverts the last three commits. Each gets its own revert commit unless you use --no-commit to stage them all and commit once.

Reverting a Merge Commit

Merge commits have two parents, so you must specify which parent represents the mainline:

git revert -m 1 merge-commit-hash

The -m 1 flag tells Git that parent 1 (the branch you merged into) is the mainline.

When to Use Revert

Use revert on any commit that has been pushed to a shared repository. It is the safest way to undo mistakes in public history because it never overwrites existing commits.