git-squash

Squash multiple commits into a single commit.

Merge all commits from a specific branch into the current branch as a single commit

$ git squash [source_branch]

Squash all commits starting with a specific commit on the current branch

$ git squash [commit]

Squash the n latest commits and commit with a message

$ git squash HEAD~[n] "[message]"

Squash the n latest commits and commit concatenating all individual messages

$ git squash --squash-msg HEAD~[n]