binary-arch sequences are passed the "-a" option to ensure they only work
on architecture dependent packages.
-Each debhelper command will record when it's successfully run in
-debian/package.debhelper.log. (Which dh_clean deletes.) So dh can tell
-which commands have already been run, for which packages, and skip running
-those commands again.
-
-Each time dh is run, it examines the log, and finds the last logged command
-that is in the specified sequence. It then continues with the next command
-in the sequence. The B<--until>, B<--before>, B<--after>, and B<--remaining>
-options can override this behavior.
-
If debian/rules contains a target with a name like "override_I<dh_command>",
then when it would normally run I<dh_command>, dh will instead call that
target. The override target can then run the command with additional options,
override_dh_installdocs:
dh_installdocs README TODO
-Sometimes the automated dh_auto_configure and dh_auto_build can't guess
-what to do for a strange package. Here's how to avoid running either
-and instead run your own commands.
+Sometimes the automated L<dh_auto_configure(1)> and L<dh_auto_build(1)>
+can't guess what to do for a strange package. Here's how to avoid running
+either and instead run your own commands.
#!/usr/bin/make -f
%:
%:
dh $@ --with python-central
+If your package uses autotools and you want to freshen config.sub and
+config.guess with newer versions from the autotools-dev package
+at build time, you can use some commands provided in autotools-dev
+that automate it, like this.
+
+ #!/usr/bin/make -f
+ %:
+ dh $@ --with autotools_dev
+
Here is how to force use of perl's Module::Build build system,
which can be necessary if debhelper wrongly detects that the package
uses MakeMaker.
%:
dh $@ --sourcedirectory=src
-Finally, here is a way to prevent dh from running several commands
-that you don't want it to run, by defining empty override targets for each
-command.
+And here is an example of how to tell the dh_auto_* commands to build
+in a subdirectory, which will be removed on clean.
+
+ #!/usr/bin/make -f
+ %:
+ dh $@ --builddirectory=build
+
+If your package can be built in parallel, you can support parallel building
+as follows. Then I<dpkg-buildpackage -j> will work.
+
+ #!/usr/bin/make -f
+ %:
+ dh $@ --parallel
+
+Here is a way to prevent dh from running several commands that you don't
+want it to run, by defining empty override targets for each command.
#!/usr/bin/make -f
%:
# Commands not to run:
override_dh_auto_test override_dh_compress override_dh_fixperms:
+Sometimes, you may need to make an override target only run commands when a
+particular package is being built. This can be accomplished using
+L<dh_listpackages(1)> to test what is being built. For example:
+
+ #!/usr/bin/make -f
+ %:
+ dh $@
+
+ override_dh_fixperms:
+ dh_fixperms
+ ifneq (,$(findstring foo, $(shell dh_listpackages)))
+ chmod 4755 debian/foo/usr/bin/foo
+ endif
+
+Finally, remember that you are not limited to using override targets in the
+rules file when using dh. You can also explicitly define any of the regular
+rules file targets when it makes sense to do so. A common reason to do this
+is if your package needs different build-arch and build-indep targets. For
+example, a package with a long document build process can put it in
+build-indep to avoid build daemons redundantly building the documentation.
+
+ #!/usr/bin/make -f
+ %:
+ dh $@
+
+ build: build-arch build-indep ;
+ build-indep:
+ $(MAKE) docs
+ build-arch:
+ $(MAKE) bins
+
+=head1 INTERNALS
+
+If you're curious about dh's internals, here's how it works under the hood.
+
+Each debhelper command will record when it's successfully run in
+debian/package.debhelper.log. (Which dh_clean deletes.) So dh can tell
+which commands have already been run, for which packages, and skip running
+those commands again.
+
+Each time dh is run, it examines the log, and finds the last logged command
+that is in the specified sequence. It then continues with the next command
+in the sequence. The B<--until>, B<--before>, B<--after>, and B<--remaining>
+options can override this behavior.
+
+dh uses the DH_INTERNAL_OPTIONS environment variable to pass information
+through to debhelper commands that are run inside override targets. The
+contents (and indeed, existence) of this environment variable, as the name
+might suggest, is subject to change at any time.
+
=cut
# Stash this away before init modifies it.
my ($option,$value)=@_;
@{$dh{WITH}} = grep { $_ ne $value } @{$dh{WITH}};
},
- "l" => \$dh{LIST},
- "list" => \$dh{LIST},
+ "l" => \&list_addons,
+ "list" => \&list_addons,
},
- # Disable complaints about unknown options; they are passed on the
- # debhelper commands.
+ # Disable complaints about unknown options; they are passed on to
+ # the debhelper commands.
ignore_unknown_options => 1,
+ # Bundling does not work well since there are unknown options.
+ bundling => 0,
);
inhibit_log();
}
}
-if ($dh{LIST}) {
+sub list_addons {
my %addons;
for my $inc (@INC) {
}
}
-# Get the sequence of commands to run.
-if (! @ARGV) {
+my $sequence;
+if (! compat(7)) {
+ # From v8, the sequence is the very first parameter.
+ $sequence=shift @ARGV_orig;
+ if ($sequence=~/^-/) {
+ error "Unknown sequence $sequence (options should not come before the sequence)";
+ }
+}
+else {
+ # Before v8, the sequence could be at any position in the parameters,
+ # so was what was left after parsing.
+ $sequence=shift;
+ if (defined $sequence) {
+ @ARGV_orig=grep { $_ ne $sequence } @ARGV_orig;
+ }
+}
+if (! defined $sequence) {
error "specify a sequence to run";
}
-my $sequence=shift;
if ($sequence eq 'debian/rules' ||
$sequence =~ /^override_dh_/) {
- # make -B causes the rules file to be run as a target
- # and support completly empty override targets
- exit 0
-}
+ # make -B causes the rules file to be run as a target.
+ # Also support completly empty override targets.
+ exit 0;
+}
elsif (! exists $sequences{$sequence}) {
error "Unknown sequence $sequence (choose from: ".
join(" ", sort keys %sequences).")";
}
while (@ARGV_orig) {
my $opt=shift @ARGV_orig;
- next if $opt eq $sequence;
if ($opt =~ /^--?(after|until|before|with|without)$/) {
shift @ARGV_orig;
next;
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