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Note that, starting git1.7.9.6 (and git1.7.10+), git merge itself will always trigger the editor, for you to add details to a merge.
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git merge $tag" to merge an annotated tag always opens the editor during an interactive edit session. v1.7.10 series introduced an environment variable GIT_MERGE_AUTOEDIT to help older scripts decline this behaviour, but the maintenance track should also support it.
It also introduces an environment variable GIT_MERGE_AUTOEDIT to help older scripts decline this behavior.
See "Anticipating Git 1.7.10":
Recently in a discussion on the Git mailing list, Linus admitted (and I agreed) that this was one of the design mistakes we made early in the history of Git.
And in 1.7.10 and later, the git merge command that is run in an interactive session (i.e. both its standard input and its standard output connected to a terminal) will open an editor before creating a commit to record the merge result, to give the user a chance to explain the merge, just like the git commit command the user runs after resolving a conflicted merge already does.
Linus said:
But I don't really care deeply how it actually works - my main issue is that git makes it way too easy to have bad merge messages.
I think part of that is an even simpler idiocy: we never even fire up the editor by default for a "git merge", but we do for a "git commit".
That was a design mistake, and it means that if you want to actually add a note to a merge, you have to do extra work. S