Squash Commits with Git

# switch to master branchgit checkout master# ensure our master is up to dategit pull remoteRepoName master

With the master branch up to date, we'll use git rebase to consolidate:

git rebase -i master

That command will show a list of each commit, as such:

pick fb554f5 This is commit 1pick 2bd1903 This is commit 2pick d987ebf This is commit 3# Rebase 9cbc329..d987ebf onto 9cbc329## Commands:#  p, pick = use commit#  r, reword = use commit, but edit the commit message#  e, edit = use commit, but stop for amending#  s, squash = use commit, but meld into previous commit#  f, fixup = like "squash", but discard this commit's log message#  x, exec = run command (the rest of the line) using shell## If you remove a line here THAT COMMIT WILL BE LOST.# However, if you remove everything, the rebase will be aborted.#

Edit the summary shown to you by the rebase command, leaving the commit you want to be the main commit as "pick" and changing all subsequent "pick" commands as "squash":

pick fb554f5 This is commit 1squash 2bd1903 This is commit 2squash d987ebf This is commit 3# Rebase 9cbc329..d987ebf onto 9cbc329## Commands:#  p, pick = use commit#  r, reword = use commit, but edit the commit message#  e, edit = use commit, but stop for amending#  s, squash = use commit, but meld into previous commit#  f, fixup = like "squash", but discard this commit's log message#  x, exec = run command (the rest of the line) using shell## If you remove a line here THAT COMMIT WILL BE LOST.# However, if you remove everything, the rebase will be aborted.#

Write/quit past the editor twice (the second screen would allow you to change the commit message, though I like to keep it the same). At this point, your commits are squashed into one. Run the following command to force a push of the new, consolidated commit:

git push -f

This forced push updates the source repository and our commits have become one. If you had already submitted a pull request at GitHub, the pull request would now show only one commit! With one consolidated commit, code review becomes much, much easier!