On Sun, Feb 02, 2014 at 03:04:59PM -0800, David Aguilar wrote:
> I think you're looking for "git merge-base".
> If you do `git merge-base HEAD origin/master`
> and its result is equal to `git rev-parse HEAD`
> then you know that master is an ancestor of origin/master
> and can be trivially fast-forwarded to origin/master.

In newer versions of git (1.8.0+), you can use "git merge-base
--is-ancestor" for this instead.  The commit message for 5907cda implies
that it is more efficient than the old way.

brian m. carlson / brian with sandals: Houston, Texas, US
+1 832 623 2791 | http://www.crustytoothpaste.net/~bmc | My opinion only
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