* Jérémy Bobbio <lu...@debian.org> [141228 22:06]:
> Joey Hess:
> > Jérémy Bobbio wrote:
> > > Joey Hess:
> > > > My other idea is to make dh_fixmtimes set something that a later command
> > > > (eg, dh_builddeb) could use and warn if it was not run.
> > >
> > > Maybe it should be integrated to dh_builddeb, then?
> >
> > I don't think it belongs in dh_builddeb directly.
>
> Unfortunately, while trying to understand why r-cran-gbm was not
> building reproducibly [1], I noticed that there might be a compelling
> reason to merge dh_fixmtimes in dh_builddeb.
>
> When DH_ALWAYS_EXCLUDE is specified, dh_builddeb might delete files.
> When this happens, parent directories get their mtime updated, reverting
> dh_fixmtimes work.
>
> So the ideal moment to set deterministic mtimes is after that pass.
> Which means integrating the find+xargs+touch in dh_builddeb…
May I suggest to just duplicate the DH_ALWAYS_EXCLUDE handling in
dh_fixmtimes for the time being?
If they are already removed then dh_builddeb should not do any new harm
and this way you keep more control over dh_fixmtimes so there is less
chances debhelper will ship outdated code.
Those two can then still later be merged if that still looks sensible
then.
Bernhard R. Link
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