=head1 SYNOPSIS
-B<dh> sequence [B<--until> I<cmd>] [B<--before> I<cmd>] [B<--after> I<cmd>] [B<--remaining>] [B<--with> I<addon>] [S<I<debhelper options>>]
+B<dh> sequence [B<--with> I<addon>[,I<addon>,...]] [B<--list>] [B<--until> I<cmd>] [B<--before> I<cmd>] [B<--after> I<cmd>] [B<--remaining>] [S<I<debhelper options>>]
=head1 DESCRIPTION
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 gets to that command in the sequence, dh will run that
+target from the rules file, rather than running the actual command. The
+override target can then run the command with additional options, or run
+entirely different commands instead. (Note that to use this feature,
+you should Build-Depend on debhelper 7.0.50 or above.)
+
=head1 OPTIONS
=over 4
+=item B<--with> I<addon>[,I<addon>,...]
+
+Add the debhelper commands specified by the given addon to appropriate places
+in the sequence of commands that is run. This option can be repeated more
+than once, or multiple addons can be listed, separated by commas.
+This is used when there is a third-party package that provides
+debhelper commands. See the PROGRAMMING file for documentation about
+the sequence addon interface.
+
+=item B<--without> I<addon>
+
+The inverse of --with, disables using the given addon.
+
+=item B<--list>, B<-l>
+
+List all available addons.
+
=item B<--until> I<cmd>
Run commands in the sequence until and including I<cmd>, then stop.
Run all commands in the sequence that have yet to be run.
-=item B<--with> I<addon>
-
-Add the debhelper commands specified by the given addon to appropriate places
-in the sequence of commands that is run. This option can be repeated more
-than once, and is used when there is a third-party package that provides
-debhelper commands. See "SEQUENCE ADDONS" below for documentation about what
-such packages should do to be supported by --with.
-
=back
All other options passed to dh are passed on to each command it runs. This
ambiguity. If there are multiple substring matches, the last one in the
sequence will be used.
-=head1 SEQUENCE ADDONS
-
-When B<--with> I<addon> is used, dh loads the perl module
-Debian::Debhelper::Sequence::I<addon>. Two functions are provided to let
-the module add its commands to sequences:
-
-=over 4
-
-=item Debian::Debhelper::Dh_Lib::insert_before(existing_command, new_command)
-
-Insert I<new_command> in sequences before I<existing_command>.
-
-=item Debian::Debhelper::Dh_Lib::insert_after(existing_command, new_command)
-
-Insert I<new_command> in sequences after I<existing_command>.
-
-=item Debian::Debhelper::Dh_Lib::remove_command(existing_command)
-
-Remove I<existing_command> from the list of commands to run.
-
-=back
-
=cut
sub command_pos {
%:
dh $@
-This is a simple rules file that is a good starting place for customisation.
-(It's also available in F</usr/share/doc/debhelper/examples/rules.simple>
-
+Often you'll want to pass an option to a specific debhelper command. The
+easy way to do with is by adding an override target for that command.
+
#!/usr/bin/make -f
+ %:
+ dh $@
- build: build-stamp
- build-stamp:
- dh build
- touch build-stamp
+ override_dh_strip:
+ dh_strip -Xfoo
+
+ override_dh_installdocs:
+ dh_installdocs README TODO
- clean:
- dh clean
+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.
- install: build install-stamp
- install-stamp:
- dh install
- touch install-stamp
+ #!/usr/bin/make -f
+ %:
+ dh $@
- binary-arch: install
- dh binary-arch
+ override_dh_auto_configure:
+ ./mondoconfig
- binary-indep: install
- dh binary-indep
+ override_dh_auto_build:
+ make universe-explode-in-delight
- binary: binary-arch binary-indep
+Another common case is wanting to do something manually before or
+after a particular debhelper command is run.
-Often you'll want to pass an option to ./configure. This uses dh to run all
-commands before L<dh_auto_configure(1)>, then runs that command by hand,
-and then finishes up by running the rest of the sequence. You could also
-run ./configure by hand, instead of bothering with using dh_auto_configure.
-And if necessary, you can add commands to run automake, etc here too.
+ #!/usr/bin/make -f
+ %:
+ dh $@
- build: build-stamp
- build-stamp:
- dh build --before configure
- dh_auto_configure -- --kitchen-sink=yes
- dh build --after configure
- touch build-stamp
+ override_dh_fixperms:
+ dh_fixperms
+ chmod 4755 debian/foo/usr/bin/foo
-Here's how to skip two automated steps in a row (configure and build), and
-instead run the commands by hand.
+If your package is a python package, dh will use dh_pysupport by
+default. This is how to use dh_pycentral instead.
- build: build-stamp
- build-stamp:
- dh build --before configure
- ./mondoconfig
- make universe-explode-in-delight
- dh build --after build
- touch build-stamp
+ #!/usr/bin/make -f
+ %:
+ dh --with python-central $@
-Another common case is wanting to run some code manually after a particular
-debhelper command is run.
+To patch your package using quilt, you can tell dh to use quilt's dh
+sequence addons like this:
+
+ #!/usr/bin/make -f
+ %:
+ dh --with quilt $@
- install: build install-stamp
- install-stamp:
- dh install --until dh_fixperms
- # dh_fixperms has run, now override it for one program
- chmod 4755 debian/foo/usr/bin/foo
- # and continue
- dh install --after dh_fixperms
- touch install-stamp
-
-It's also fine to run debhelper commands early. Just make sure that at
-least dh_prep is run from the sequence first, and be sure to use the
-B<--remaining> option to ensure that commands that normally come before
-those in the sequence are still run.
-
- install: build install-stamp
- install-stamp:
- dh install --until dh_prep
- dh_installdocs README TODO
- dh_installchangelogs Changes
- dh install --remaining
- touch install-stamp
+Here is an example of overriding where the dh_auto_* commands find
+the package's source, for a package where the source is located in a
+subdirectory. It also forces use of perl's Module::Build build system,
+which can be necessary if debhelper wrongly detects that the package
+uses MakeMaker.
- binary-arch: install
- dh_strip -X foo
- dh binary-arch --remaining
+ #!/usr/bin/make -f
+ %:
+ dh --sourcedirectory=src --buildsystem=perl_build $@
=cut
# Stash this away before init modifies it.
my @ARGV_orig=@ARGV;
+# python-support is enabled by default, at least for now
+# (and comes first so python-central loads later and can disable it).
+unshift @ARGV, "--with=python-support";
+
+# Disable complaints about unknown options for both dh and the commands
+# it runs. This is done because dh accepts and passes on options that may
+# be specific to only some debhelper commands.
+$ENV{DH_IGNORE_UNKNOWN_OPTIONS}=1;
+
init(options => {
"until=s" => \$dh{UNTIL},
"after=s" => \$dh{AFTER},
"remaining" => \$dh{REMAINING},
"with=s" => sub {
my ($option,$value)=@_;
- push @{$dh{WITH}},$value;
+ push @{$dh{WITH}},split(",", $value);
},
+ "without=s" => sub {
+ my ($option,$value)=@_;
+ @{$dh{WITH}} = grep { $_ ne $value } @{$dh{WITH}};
+ },
+ "l" => \$dh{LIST},
+ "list" => \$dh{LIST},
});
inhibit_log();
+# If make is using a jobserver, but it is not available
+# to this process, clean out MAKEFLAGS. This avoids
+# ugly warnings when calling make.
+if (is_make_jobserver_unavailable()) {
+ clean_jobserver_makeflags();
+}
+
# Definitions of sequences.
my %sequences;
$sequences{build} = [qw{
dh_installcatalogs
dh_installcron
dh_installdebconf
- dh_installcatalogs
dh_installemacsen
dh_installifupdown
dh_installinfo
dh_installudev
dh_installwm
dh_installxfonts
+ dh_bugfiles
dh_lintian
- dh_desktop
dh_gconf
dh_icons
dh_perl
- dh_scrollkeeper
dh_usrlocal
dh_link
}, @b];
$sequences{'binary-arch'} = [@{$sequences{binary}}];
-# --with python-support is enabled by default, at least for now
-unshift @{$dh{WITH}}, "python-support";
+# Additional command options
+my %command_opts;
# sequence addon interface
sub _insert {
}
}
+sub add_command {
+ my $command=shift;
+ my $sequence=shift;
+ unshift @{$sequences{$sequence}}, $command;
+}
+sub add_command_options {
+ my $command=shift;
+ push @{$command_opts{$command}}, @_;
+}
+sub remove_command_options {
+ my $command=shift;
+ if (@_) {
+ # Remove only specified options
+ if (my $opts = $command_opts{$command}) {
+ foreach my $opt (@_) {
+ $opts = [ grep { $_ ne $opt } @$opts ];
+ }
+ $command_opts{$command} = $opts;
+ }
+ }
+ else {
+ # Clear all additional options
+ delete $command_opts{$command};
+ }
+}
+
+if ($dh{LIST}) {
+ my %addons;
+
+ for my $inc (@INC) {
+ eval q{use File::Spec};
+ my $path = File::Spec->catdir($inc, "Debian/Debhelper/Sequence");
+ if (-d $path) {
+ for my $module_path (glob "$path/*.pm") {
+ my $name = basename($module_path);
+ $name =~ s/\.pm$//;
+ $name =~ s/_/-/g;
+ $addons{$name} = 1;
+ }
+ }
+ }
+
+ for my $name (sort keys %addons) {
+ print "$name\n";
+ }
+
+ exit 0;
+}
+
foreach my $addon (@{$dh{WITH}}) {
my $mod="Debian::Debhelper::Sequence::$addon";
$mod=~s/-/_/g;
eval "use $mod";
if ($@) {
- error("--with $addon not supported or failed to load module $mod");
+ error("unable to load addon $addon: $@");
}
}
error "specify a sequence to run";
}
my $sequence=shift;
-if (! exists $sequences{$sequence}) {
+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
+}
+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)$/) {
+ if ($opt =~ /^--?(after|until|before|with|without)$/) {
shift @ARGV_orig;
next;
}
- elsif ($opt =~ /^--?(no-act|remaining|(after|until|before|with)=)/) {
+ elsif ($opt =~ /^--?(no-act|remaining|(after|until|before|with|without)=)/) {
next;
}
push @options, $opt;
my %logged;
my %startpoint;
foreach my $package (@packages) {
- my @log=loadlog($package);
+ my @log=load_log($package, \%logged);
if ($dh{AFTER}) {
# Run commands in the sequence that come after the
# specified command.
# no commands remain to run after it, communicating to
# future dh instances that the specified command should not
# be run again.
- writelog($package, $sequence[$startpoint{$package}-1]);
+ write_log($sequence[$startpoint{$package}-1], $package);
}
elsif ($dh{REMAINING}) {
# Start at the beginning so all remaining commands will get
# Command already done for all packages.
next;
}
- elsif (! @exclude) {
- # Run command for all packages.
- run($sequence[$i], @options);
- }
- else {
- # Run command for only a subset of packages.
- run($sequence[$i], @options,
- map { "-N$_" } @exclude);
- }
+
+ run($sequence[$i], \@packages, \@exclude, @options);
}
sub run {
my $command=shift;
+ my @packages=@{shift()};
+ my @exclude=@{shift()};
my @options=@_;
+ # If some packages are excluded, add flags
+ # to prevent them from being acted on.
+ push @options, map { "-N$_" } @exclude;
+
+ # Check for override targets in debian/rules and
+ # run them instead of running the command directly.
+ my $override_command;
+ if (rules_explicit_target("override_".$command)) {
+ $override_command=$command;
+ # This passes the options through to commands called
+ # inside the target.
+ $ENV{DH_INTERNAL_OPTIONS}=join("\x1e", @options);
+ $command="debian/rules";
+ @options="override_".$override_command;
+ }
+ else {
+ # Pass additional command options if any
+ unshift @options, @{$command_opts{$command}} if exists $command_opts{$command};
+ }
+
# 3 space indent lines the command being run up under the
# sequence name after "dh ".
print " ".escape_shell($command, @options)."\n";
elsif ($ret) {
exit 1;
}
+
+ if (defined $override_command) {
+ delete $ENV{DH_INTERNAL_OPTIONS};
+ # Need to handle logging for overriden commands here,
+ # because the actual debhelper command may not have
+ # been run by the rules file target.
+ # (But avoid logging for dh_clean since it removes
+ # the log earlier.)
+ if ($override_command ne 'dh_clean') {
+ my %packages=map { $_ => 1 } @packages;
+ map { delete $packages{$_} } @exclude;
+ write_log($override_command, keys %packages);
+ }
+ }
}
}
-sub loadlog {
- my $package=shift;
- my $ext=pkgext($package);
+{
+my %targets;
+my $rules_parsed;
+
+sub rules_explicit_target {
+ # Checks if a specified target exists as an explicit target
+ # in debian/rules.
+ my $target=shift;
- my @log;
- open(LOG, "<", "debian/${ext}debhelper.log") || return;
- while (<LOG>) {
- chomp;
- push @log, $_;
- $logged{$package}{$_}=1;
+ if (! $rules_parsed) {
+ my $processing_targets = 0;
+ my $not_a_target = 0;
+ open(MAKE, "LC_ALL=C make -Rrnpsf debian/rules debhelper-fail-me 2>/dev/null |");
+ while (<MAKE>) {
+ if ($processing_targets) {
+ if (/^# Not a target:/) {
+ $not_a_target = 1;
+ }
+ else {
+ if (!$not_a_target && /^([^#:]+)::?/) {
+ # Target is defined.
+ # NOTE: if it is a depenency
+ # of .PHONY it will be
+ # defined too but that's ok.
+ $targets{$1} = 1;
+ }
+ # "Not a target:" is always followed by
+ # a target name, so resetting this one
+ # here is safe.
+ $not_a_target = 0;
+ }
+ } elsif (/^# Files$/) {
+ $processing_targets = 1;
+ }
+ }
+ close MAKE;
+ $rules_parsed = 1;
}
- close LOG;
- return @log;
+
+ return exists $targets{$target};
}
-
-sub writelog {
- my $package=shift;
- my $cmd=shift;
- my $ext=pkgext($package);
-
- open(LOG, ">>", "debian/${ext}debhelper.log") || error("failed to write to log");
- print LOG $cmd."\n";
- close LOG;
+
}
=head1 SEE ALSO
projects / debhelper.git / blobdiff