r556: * Depend on po-debconf, and I hope I can drop the debconf-utils dep soon.

[debhelper.git] / dh_installdebconf

diff --git a/dh_installdebconf b/dh_installdebconf
index 03ac235775669b5566c21e3db8deae0d6b216f63..be6fcabfa582b9fe83157158b6b33ab0388b85ce 100755 (executable)
--- a/dh_installdebconf
+++ b/dh_installdebconf
@@ -1,30 +1,134 @@
 #!/usr/bin/perl -w
-#
-# Integration with debconf.
 
+=head1 NAME
+
+dh_installdebconf - install files used by debconf in package build directories
+
+=cut
+
+use strict;
 use Debian::Debhelper::Dh_Lib;
+
+=head1 SYNOPSIS
+
+B<dh_installdebconf> [S<I<debhelper options>>] [B<-n>] [S<B<--> I<params>>]
+
+=head1 DESCRIPTION
+
+dh_installdebconf is a debhelper program that is responsible for installing
+files used by the debconf package into package build directories.
+
+It also automatically generates the postrm commands needed to
+interface with debconf. See L<dh_installdeb(1)> for an explanation of how
+that works.
+
+Files named debian/package.config and debian/package.templates are
+installed into the DEBIAN directory in the package build directory.
+
+Note that if you use debconf, your package probably needs to depend on it
+(it will be added to ${misc:Depends} by this program).
+
+=head1 LOCALIZED TEMPLATE FILES
+
+Debconf also supports localized template files, and this program has some
+support to aid is working with them. It is best to keep the translations in
+.po files under debian/po, and merge them only at build time. See 
+L<po2debconf(1)> and L<debconf-getlang(1)> for details.
+
+This program will look to see if you have a debian/po directory and if so will
+automatically call L<po2debconf(1)> to generate a merged templates file. Or 
+if you have debian/templates.ll files, it will use the older 
+L<debconf-mergetemplate(1)> program to merge those together.
+
+Note that if your package has a debian/po directory it should build-depend on po-debconf.
+
+For example, if you have a German translation,
+strings from debian/po/de.po are merged with debian/package.templates.
+
+=head1 OPTIONS
+
+=over 4
+
+=item B<-n>, B<--noscripts>
+
+Do not modify postrm script.
+
+=item B<--> I<params>
+
+Pass the params to po2debconf, if it is run or debconf-mergetemplate, if it
+is run.
+
+=back
+
+=cut
+
 init();
 
-foreach $PACKAGE (@{$dh{DOPACKAGES}}) {
-       $TMP=tmpdir($PACKAGE);
-       $config=pkgfile($PACKAGE,"config");
-       $templates=pkgfile($PACKAGE,"templates");
+my @extraparams;
+if (defined($dh{U_PARAMS})) {
+       @extraparams=@{$dh{U_PARAMS}};
+}
+
+foreach my $package (@{$dh{DOPACKAGES}}) {
+       my $tmp=tmpdir($package);
+       my $config=pkgfile($package,"config");
+       my $templates=pkgfile($package,"templates");
 
-       if (! -d "$TMP/DEBIAN") {
-               doit("install","-o","root","-g","root","-d","$TMP/DEBIAN");
+       if (! -d "$tmp/DEBIAN") {
+               doit("install","-o",0,"-g",0,"-d","$tmp/DEBIAN");
        }
 
        if ($config ne '') {
-               doit("install", "-o", "root", "-g", "root", "-m", 755, "-p",
-                    $config, "$TMP/DEBIAN/config");
+               doit("install", "-o", 0, "-g", 0, "-m", 755, "-p",
+                    $config, "$tmp/DEBIAN/config");
        }
        
        if ($templates ne '') {
-               doit("install", "-o", "root", "-g", "root", "-m", 644, "-p",
-                    $templates, "$TMP/DEBIAN/templates");
+               # Are there old-style translated templates?
+               my @trans=(glob("$templates.??"), glob("$templates.??_??"));
+
+               # Look for po directory.
+               if (-d "debian/po") {
+                       if (@trans) {
+                               warning "ignoring debian/templates.ll files in favour of debian/po directory";
+                       }
+                       else {
+                               complex_doit("po2debconf @extraparams $templates > $tmp/DEBIAN/templates");
+                       }
+               }
+               elsif (@trans) {
+                       complex_doit("debconf-mergetemplate --drop-old-templates @extraparams @trans $templates > $tmp/DEBIAN/templates");
+                       chmod 0644, "$tmp/DEBIAN/templates";
+                       chown 0, 0, "$tmp/DEBIAN/templates";
+               }
+               else {
+                       doit("install", "-o", 0, "-g", 0, "-m", 644, "-p",
+                            $templates, "$tmp/DEBIAN/templates");
+               }
        }
 
-       if (($config ne ''|| $templates ne '') && ! $dh{NOSCRIPTS}) {
-               autoscript($PACKAGE,"postrm","postrm-debconf");
+       if ($config ne '' || $templates ne '') {
+               # I'm going with debconf 0.5 because it was the first
+               # "modern" one.
+               addsubstvar($package, "misc:Depends", "debconf", ">= 0.5");
+       }
+       else {
+               addsubstvar($package, "misc:Depends", "debconf", ">= 0.5", 1); # remove
+       }
+       
+       if (($config ne '' || $templates ne '') && ! $dh{NOSCRIPTS}) {
+               autoscript($package,"postrm","postrm-debconf");
        }
 }
+
+=head1 SEE ALSO
+
+L<debhelper(1)>
+
+This program is a part of debhelper.
+
+=head1 AUTHOR
+
+Joey Hess <joeyh@debian.org>
+
+=cut