#-*- perl -*-
# Copyright (C) 2000 R Development Core Team
#
# 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, 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.
#
# A copy of the GNU General Public License is available via WWW at
# http://www.gnu.org/copyleft/gpl.html.	 You can also obtain it by
# writing to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA  02111-1307  USA.

# Send any bug reports to R-bugs@lists.r-project.org

use Cwd;
use File::Basename;
use File::Path;
use Getopt::Long;
use R::Dcf;
use R::Utils;


my $revision = ' $Revision: 1.4.2.1 $ ';
my $version;
my $name;
$revision =~ / ([\d\.]*) /;
$version = $1;
($name = $0) =~ s|.*/||;


my @knownoptions = ("help|h", "version|v", "debug|d", "library|l:s",
		    "clean|c", "docs:s",
		    "use-zip", "use-zip-data", "use-zip-help");
			
GetOptions (@knownoptions) || usage();
R_version($name, $version) if $opt_version;
usage() if $opt_help;

my $R_HOME = $ENV{'R_HOME'} ||
    die "Error: Environment variable R_HOME not found\n";

my $startdir = getcwd();
if($opt_library){
    chdir($opt_library) ||
	die "Error: cannot change to directory \`$opt_library'\n";
    $library = getcwd();
    chdir($startdir);
} else {
    $library = $R_HOME . "/library";
}

my $helpflags = "HELP=YES WINHELP=CHM";
if($opt_docs) {
    $helpflags = "HELP=NO"  if $opt_docs == "no";
    $helpflags = "HELP=YES WINHELP=NO"  if $opt_docs == "normal";
    $helpflags = "HELP=YES WINHELP=CHM"  if $opt_docs == "chm";
    $helpflags = "HELP=YES WINHELP=BOTH"  if $opt_docs == "winhlp";
    $helpflags = "HELP=YES WINHELP=BOTH"  if $opt_docs == "all";
}

## this is the main loop over all packages to be installed
my $pkg;
foreach $pkg (@ARGV){
    $pkg =~ s/\/$//;
    my $pkgname = basename($pkg);

    chdir($pkg)||
	die "Error: cannot change to directory \`$pkg'\n";;
    chdir("..");
    my $pkgdir = getcwd();
    chdir($startdir);


    my $pkgoutdir="$library/$pkgname";
    rmtree($pkgoutdir) if (-d $pkgoutdir);

    my $makecmd = "pkg";
    if(-r "$pkg/DESCRIPTION"){
	$description = new R::Dcf("$pkg/DESCRIPTION");
    }
    if($description->{"Contains"}){
	print "\nLooks like \`${pkg}' is a package bundle\n";
	$makecmd = "bundle"
    }
    print "\n";
    if(system("make -C $R_HOME/src/gnuwin32 PKGDIR=$pkgdir RLIB=$library $helpflags $makecmd-$pkgname")){
	printf "Installation of $pkgname failed\n";
    } else {
	if($opt_use_zip || $opt_use_zip_data) {
	    system("make -C $R_HOME/src/gnuwin32 PKGDIR=$pkgdir RLIB=$library zipdata-$pkgname") if -d "$library/$pkgname/data";
	}
	if($opt_use_zip || $opt_use_zip_help) {
	    system("make -C $R_HOME/src/gnuwin32 PKGDIR=$pkgdir RLIB=$library ziponly-$pkgname")
	}
    }

    system("make -C $R_HOME/src/gnuwin32 PKGDIR=$pkgdir RLIB=$library pkgclean-$pkgname") if ($opt_clean && $makecmd == "pkg");

    if($opt_clean && $makecmd == "bundle") {
	my @bundlepkgs = split(/\s+/, $description->{"Contains"});
	foreach $ppkg (@bundlepkgs){
	       system("make -C $R_HOME/src/gnuwin32 PKGDIR=$pkgdir/$pkg RLIB=$library pkgclean-$ppkg") 
	}

    }
    print("\n");
}

if(!(-d "$library/R.css")) {
    system("cp $R_HOME/doc/html/R.css $library/R.css");
}


sub usage {
    print STDERR <<END;
Usage: Rcmd $name [options] pkgs

Install the add-on packages specified by pkgs into the default R library
tree (${R_HOME}/library) or the tree specified via \`--library'.  The
elements of pkgs can be relative or absolute paths to directories with
the package (bundle) sources, or to gzipped package \`tar' archives.

Options:
  -c, --clean		remove all files created during installation
  -d, --debug		[x] turn on shell and build-help debugging
  -h, --help		print short help message and exit
  -l, --library=LIB	install packages to library tree LIB
      --docs=TYPE	type(s) of documentation to build and install
      --use-zip-data	collect data files in zip archive
      --use-zip-help	collect help and examples into zip archives
      --use-zip		combine \`--use-zip-data' and \`--use-zip-help'
  -v, --version		print version info and exit

TYPE can be "none" or "normal" or "chm" (the default) or "winhlp" or "all"

Report bugs to <R-bugs\@lists.r-project.org>.
END
    exit 0;
}