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-rwxr-xr-xdh_installwm140
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diff --git a/dh_installwm b/dh_installwm
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+#!/usr/bin/perl
+
+=head1 NAME
+
+dh_installwm - register a window manager
+
+=cut
+
+use strict;
+use warnings;
+use Debian::Debhelper::Dh_Lib;
+
+our $VERSION = DH_BUILTIN_VERSION;
+
+=head1 SYNOPSIS
+
+B<dh_installwm> [S<I<debhelper options>>] [B<-n>] [B<--priority=>I<n>] [S<I<wm> ...>]
+
+=head1 DESCRIPTION
+
+B<dh_installwm> is a debhelper program that is responsible for
+generating the F<postinst> and F<prerm> commands that register a window manager
+with L<update-alternatives(8)>. The window manager's man page is also
+registered as a slave symlink (in v6 mode and up). It must be installed in
+F<usr/share/man/man1/> in the package build directory prior to calling
+B<dh_installwm>. In compat 9 and earlier, the manpage was optional.
+
+=head1 FILES
+
+=over 4
+
+=item debian/I<package>.wm
+
+List window manager programs to register.
+
+Supports substitution variables in compat 13 and later as
+documented in L<debhelper(7)>.
+
+=back
+
+=head1 OPTIONS
+
+=over 4
+
+=item B<--priority=>I<n>
+
+Set the priority of the window manager. Default is 20, which is too low for
+most window managers; see the Debian Policy document for instructions on
+calculating the correct value.
+
+=item B<-n>, B<--no-scripts>
+
+Do not modify F<postinst>/F<prerm> scripts. Turns this command into a no-op.
+
+=item B<-A>, B<--all>
+
+Modify scripts for window managers specified by command line
+parameters in ALL packages acted on, not just the first.
+
+=item I<wm> ...
+
+Window manager programs to register.
+
+=back
+
+=head1 NOTES
+
+Note that this command is not idempotent. L<dh_prep(1)> should be called
+between invocations of this command. Otherwise, it may cause multiple
+instances of the same text to be added to maintainer scripts.
+
+=cut
+
+init(options => {
+ "priority=s" => \$dh{PRIORITY},
+});
+
+if (! defined $dh{PRIORITY}) {
+ $dh{PRIORITY}=20;
+}
+
+if (@ARGV) {
+ # This is here for backwards compatibility. If the filename doesn't
+ # include a path, assume it's in /usr/bin.
+ if ($ARGV[0] !~ m:/:) {
+ $ARGV[0]="/usr/bin/$ARGV[0]";
+ }
+}
+
+my $nodocs = is_build_profile_active('nodoc') || get_buildoption('nodoc') ? 1 : 0;
+
+# PROMISE: DH NOOP WITHOUT wm cli-options()
+
+foreach my $package (@{$dh{DOPACKAGES}}) {
+ my $tmp=tmpdir($package);
+ my $file=pkgfile($package,"wm");
+
+ my @wm;
+ if ($file) {
+ @wm=filearray($file, '.');
+ }
+
+ if (($package eq $dh{FIRSTPACKAGE} || $dh{PARAMS_ALL}) && @ARGV) {
+ push @wm, @ARGV;
+ }
+
+ if (! $dh{NOSCRIPTS}) {
+WM: foreach my $wm (@wm) {
+ autoscript($package,"prerm","prerm-wm", { 'WM' => $wm });
+
+ my $wmman;
+ foreach my $ext (".1", ".1x") {
+ $wmman="/usr/share/man/man1/".basename($wm).$ext;
+ if (-e "$tmp$wmman" || -e "$tmp$wmman.gz") {
+ autoscript($package,"postinst","postinst-wm", { 'WM' => $wm, 'WMMAN' => "${wmman}.gz" , 'PRIORITY' => $dh{PRIORITY} });
+ next WM;
+ }
+ }
+ if (not compat(9) and not $nodocs) {
+ error("no manpage found (creating an x-window-manager alternative requires a slave symlink for the manpage)");
+ } else {
+ warning("no manpage found (creating an x-window-manager alternative requires a slave symlink for the manpage)");
+ }
+ # Reaching this code means a broken package will be produced.
+ autoscript($package,"postinst","postinst-wm-noman", { 'WM' => $wm, 'PRIORITY' => $dh{PRIORITY} });
+ }
+ }
+}
+
+=head1 SEE ALSO
+
+L<debhelper(7)>
+
+This program is a part of debhelper.
+
+=head1 AUTHOR
+
+Joey Hess <joeyh@debian.org>
+
+=cut