On 08/20/2014 02:02 PM, Andreas Färber wrote:
Hi Javier,
Am 20.08.2014 17:39, schrieb Javier Martinez Canillas:
As you already know when you apply a patch with git am, everything
that is between a line with 3 dashes line (---) and the actual diff is
omitted since that is where the generated diffstat is placed by git
format-patch.
We usually rely on that behavior to put there the history of a patch
or any information that we think that is useful for reviewers but is
not suitable to end in the commit message. Now that means that you
have to generate the patch and then manually edit it to add the
history there.
But since git am omits any text between the first "---" and the diff,
it means that you can add a "---" on your actual commit message and
anything that follows will be discarded by git am, that way you can
maintain your history on your commit message which is way less tedious
than manually editing patches.
So the second "---" from Tuomas patch is actually the one generated by
git format-patch but that gets discarded by git am just like any other
text so it causes no harm when other apply the patches.
If this not the correct workflow and you have a better way to manage
this, I would love to know about it.
One drawback of having --- in the commit message is that you can't
cherry-pick but really need to use git-am for it to be stripped.
You can, you just have to either:
* Pass -e to git cherry-pick so you get to edit the patch description,
* Run "git commit --amend" right afterwards,
... and then delete everything starting at ---.
I do this reasonably often on my own patches; I send them to the list,
get them reviewed, and then cherry-pick them into the Tegra maintainer
tree rather than saving them from the email client and running git am.
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