Re: [Qemu-devel] [PATCH] scripts: let checkpatch.pl process an entire GIT branch

[Paolo Bonzini]

On 12/09/2017 18:22, Daniel P. Berrange wrote:
> On Tue, Sep 12, 2017 at 06:14:57PM +0200, Paolo Bonzini wrote:
>> On 12/09/2017 18:12, Daniel P. Berrange wrote:
>>> On Tue, Sep 12, 2017 at 05:52:18PM +0200, Paolo Bonzini wrote:
>>>> On 12/09/2017 12:46, Daniel P. Berrange wrote:
>>>>> Currently before submitting a series, devs should run checkpatch.pl
>>>>> across each patch to be submitted. This can be automated using a
>>>>> command such as:
>>>>>
>>>>>   git rebase -i master -x 'git show | ./scripts/checkpatch.pl -'
>>>>>
>>>>> This is rather long winded to type, so this patch introduces a new
>>>>> flag '--branch' to checkpatch.pl which instructs it to check every
>>>>> patch on the current GIT branch.
>>>>
>>>> Great idea, though I'm not sure about having a default.  And to keep it
>>>> easy to invoke, having a sole argument that ends with ".." might DWIM
>>>> and enable --branch too...
>>>
>>> I think it is beneficial to have a default, as I figure the majority
>>> of contributors are working on a branch that's rebased against master..
>>> Half as many characters to type in the common case :-)
>>
>> With the DWIM option "--branch" and "master.." are exactly the same
>> length. :)
> 
> Oh hang on. I think I misunderstood what you suggested. I thought you
> meant  'checkpatch.pl --branch master..', but IIUC you actually mean
> 'checkpatch.pl master..' with no flag. That would work with me.

Yes, basically if length(argv) == 1 and argv[0] ends with ".." then
enable branch.  The default for --branch with no ARGV could be
"origin/master.."---or it could ask git-config for the upstream tracking
branch but maybe that's too much to ask.

Paolo