git: hook for fast-forward switch on branch change?

Question

Is there a hook script available somewhere that would do a fast-forward merge on branch switch? I have a repository where there are multiple branches, and I have to work on several on them. After a git pull which obviously merges the currently checked out branch it often happens to me that I see the following message when switching branches:

> git checkout master 
Switched to branch 'master'
Your branch is behind 'origin/master' by 10 commits, and can be fast-forwarded.
>

I would like git to do that fast-forward merge for me automatically on branch change. I don't want it to unconditionally merge but only when a fast-forward is possible.

Thanks in advance for suggestions,
Rhonda

score 1 · Accepted Answer · edited May 23 '17 at 12:21

I would suggest an alias rather than a hook, in oder to combine:

git pull
with one of the scripts detailed in "How can I fast-forward a single git commit, programmatically?" (but adapted in order to fast-forward all the way)

The question "Using Git when I want my branches to be always updated" references the script "git-fetch-and-fast-forward-all-branches.sh", which can be of interest here.

git: hook for fast-forward switch on branch change?

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