[LLVMdev] [cfe-dev] Commit message policy?

Mehdi Amini mehdi.amini at apple.com
Fri Mar 6 13:49:28 PST 2015

> On Mar 6, 2015, at 1:36 PM, Davide Italiano <davide at freebsd.org> wrote:
> On Fri, Mar 6, 2015 at 1:12 PM, Renato Golin <renato.golin at linaro.org> wrote:
>> On 6 March 2015 at 20:59, Reid Kleckner <rnk at google.com> wrote:
>>> I think the only guideline we should have is that the first line should be
>>> written as though it is an email subject, because it gets used for that. If
>>> you write a long first line, then you get a long subject, and it looks
>>> silly. If people want to embarrass themselves with strangely formatted
>>> email, they it's on them. We don't need a specific hard or soft number.
>> Not many people care about the email subject already, that's why they
>> keep using ridiculously long first lines.
>> IMO, "suggesting" to write short first lines is the same as not doing
>> anything. Either we add a cap (say, 80 chars), or we don't do
>> anything.
>> Chandler's other suggestion, tough, is interesting: to write up a bit
>> about what a *good* message would be, so the people that were really
>> interested, could do it "right" (tm).
> Another guideline I would like to propose for commit messages is that
> of attaching to the commit a link to the code review, if any.  

I believe it is documented here: http://llvm.org/docs/Phabricator.html#committing-a-change


> For big
> changes, this allows easily to reconstruct the history of the commit,
> together with other informations (e.g. the reviewers). A potential
> downside of it is that links might be not valid anymore after a while,
> but I still think the advantages overcome the problems.
> FWIW, I already try to include this info when I commit, so if it's not
> OK or people have concerns about it, I would like to have this
> explictly stated.
> --
> Davide
> "There are no solved problems; there are only problems that are more
> or less solved" -- Henri Poincare
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