Re: [Qemu-devel] Howto: instructing patchew about patch dependency

[Fam Zheng <famz@redhat.com>]

On Tue, 08/08 16:00, Laszlo Ersek wrote:
> On 08/08/17 04:02, Fam Zheng wrote:
> > Hi, QEMU patch submitters,
> > 
> > I've patched patchew so that if you add a line:
> > 
> > Based-on: $MESSAGE_ID
> > 
> > in your cover letter body, or in a reply to it (or reply to reply), patchew will
> > try to apply your series on top of the one $MESSAGE_ID refers to, assuming the
> > base series _was_ successfully applied by patchew earlier.
> > 
> > In the single patch case, you can put the line under the "---" mark in the
> > commit message (no need to let it enter git history).
> > 
> > For human readability, around the "Based-on:" line it may be better if the
> > subject is noted. E.g.:
> > 
> > Based-on: 20170804140942.19342-1-famz@redhat.com
> > ([PATCH for-2.10] vmdk: Fix error handling/reporting of vmdk_check)
> > 
> > Please don't join them in one line because it will confuse the parser, after all
> > following the message id text, there aren't many spaces left.
> 
> If the basis is a multi-patch series, should Based-on refer to the msgid
> of the last patch in that series, or its blurb? (I guess "refer to
> blurb" is more logical, but asking shouldn't hurt.)

My bad for not making it clear: patchew identifies patch series by cover letter
message id, so yes, "blurb" is right.

Fam