File: makemanpage.in

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#!@PERL@ -w
# makemanpage - generate man page from --help output using help2man
#
# Copyright (C) 2007 Olly Betts
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

use strict;

# Parse command line parameters
if ($#ARGV != 2) {
  print "usage: makemanpage <binary> <source> <manpage>\n";
  exit 1;
}

my ($binary, $src, $manpage) = @ARGV;

my $desc;
open SRC, "<$src" or die "$src: $!\n";
while (<SRC>) {
    if (/^(?:PROG_DESC=|\s*#\s*define\s+PROG_DESC\s+)"(.*?)"/) {
	$desc = $1;
	last;
    }
}
close SRC;
unless (defined $desc) {
    die "$src: Failed to find PROG_DESC\n";
}

my $r = system("@HELP2MAN@", "-o", $manpage."T", "--no-info",
	       "-S", "@PACKAGE_STRING@", "-n", $desc, $binary);
if ($r) {
    unlink $manpage."T";
    die "@HELP2MAN@: $!\n";
}
rename $manpage."T", $manpage;