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Re: Enabling -ffile-prefix-map by default



On 27/09/20 at 18:37 +0200, Lucas Nussbaum wrote:
> Hi,
> 
> On 07/09/20 at 20:42 -0700, Vagrant Cascadian wrote:
> > On 2020-08-31, Lucas Nussbaum wrote:
> > > On 31/08/20 at 09:35 -0700, Vagrant Cascadian wrote:
> > >> On 2020-08-31, Lucas Nussbaum wrote:
> > >> > On 30/08/20 at 19:15 -0700, Vagrant Cascadian wrote:
> > >> >> I'm looking into proposing to enable dpkg's
> > >> >> DEB_BUILD_OPTIONS=reproducible=+fixfilepath by default
> > >> ...
> > >> >> It would be nice to try an archive-wide rebuild with +fixfilepath
> > >> >> enabled and on failure,
> > >> >
> > >> > Could you provide a dpkg package in a private repo (or in experimental)
> > >> > with that enabled by default? And ideally a script similar to
> > >> > https://salsa.debian.org/lucas/collab-qa-tools/-/blob/master/modes/gcc10
> > >> > to install that package?
> > >> 
> > >> I could build and upload an updated dpkg somewhere...
> > >> 
> > >> I see that modes/clang10 mangles some files directly, and while this
> > >> makes me cringe a bit, what about instead adding a
> > >> modes/dpkg-fixfilepath doing something like:
> > >> 
> > >>   sed -i -e 's,fixfilepath => 0,fixfilepath => 1,g' /usr/share/perl5/Dpkg/Vendor/Debian.pm
> > >> 
> > >> Is this an acceptible way forward?
> > >
> > > Ah, yes, totally!
> > 
> > Proposed merge request adding a script that does just that:
> > 
> >   https://salsa.debian.org/lucas/collab-qa-tools/-/merge_requests/9
> 
> In http://qa-logs.debian.net/2020/09/26.fixfilepath/ you can find:
> 
> 00cmp.fixfilepath.only-fails-with-fixfilepath.txt: that's the list of
> packages that fail with fixfilepath, but don't fail without it.
> 
> 00res.fixfilepath.txt: the full list of built packages
> 00cmp.fixfilepath.txt: the differences with a normal build
> 
> ... and the logs for the packages listed in the first file.
> 
> Let me know if you need something else.

00res.fixfilepath.only-failures.txt: that's the list of failures in
00cmp.fixfilepath.only-fails-with-fixfilepath.txt, with an indication of
the failure. (to avoid going through the logs)

Lucas

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