Le Fri, Jan 30, 2009 at 09:00:46AM -0800, Russ Allbery a écrit :
>
> What this is saying is that substvars will be expanded by those three
> programs when generating the *.dsc, the *.changes, and the binary control
> files. However, while build dependency information is copied into the
> *.dsc file, my understanding is that it's not read from that file for
> package builds. Build dependency information is read directly from
> debian/control and hence cannot get the benefit of any pre-processing of
> debian/control. See dpkg-source(1) under the description of the -c
> option.
Hi Russ,
I am not sure I understand. From reading the man page of dpkg-source, it seems
to me that:
- The 'control' file is used to generate the .dsc file.
- The location of the 'control' file is debian/control by default, but this
can be changed with the -c option.
I have not found evidence in the documentation nor in the source that the
building of the .dsc file is a two-step process as you describe.
aqwa『~』$ grep -A1 -B1 dsc /usr/bin/dpkg-source
# Write the .dsc
my $dscname = $srcpkg->get_basename(1) . ".dsc";
info(_g("building %s in %s"), $sourcepackage, $dscname);
$substvars->parse($varlistfile) if $varlistfile && -e $varlistfile;
$srcpkg->write_dsc(filename => $dscname,
remove => \%remove,
--
unless (scalar(@ARGV)) {
usageerr(_g("-x needs at least one argument, the .dsc"));
}
--
}
my $dsc = shift(@ARGV);
if (-d $dsc) {
usageerr(_g("-x needs the .dsc file as first argument, not a
directory"));
}
--
# Create the object that does everything
my $srcpkg = Dpkg::Source::Package->new(filename => $dsc,
options => \%options);
--
} else {
warning(_g("extracting unsigned source package (%s)"), $dsc);
}
--
Commands:
-x <filename>.dsc [<output-dir>]
extract source package.
--
-T<varlistfile> read variables here, not debian/substvars.
-D<field>=<value> override or add a .dsc field and value.
-U<field> remove a field.
I still do not understand what makes it "nonsense" to use substvars for the
generation of the .dsc and .changes file.
Have a nice day,
--
Charles Plessy
Tsurumi, Kanagawa, Japan
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