[Perl] install lib v1.0

#!/usr/bin/perl

# name: install_lib v1.0
# author: reistlin
# website: www.reistlin.com
# date: 2011.02.22

use strict;
use Data::Dumper;
use Time::Local;

# debug switch
my $debug = 0;


####################
# Configuration
####################

# download website
my $download = "http://www.reistlin.com/download/linux";
# home
my $home = $ENV{'HOME'};
# prefix
my $prefix = "$home/lib";
# pkgs
my $pkgs = "$home/pkgs";
# build
my $build = "$pkgs/build";
# core
my $core = "4";


####################
# Library Packages
####################

my %lib = (
	curl => "curl-7.20.1.tar.gz",
	freetype => "freetype-2.4.4.tar.gz",
	gd => "gd-2.0.35.tar.gz",
	gettext => "gettext-0.18.1.1.tar.gz",
	jpeg => "jpeg-8c.tar.gz",
	libevent => "libevent-1.4.14b-stable.tar.gz",
	libiconv => "libiconv-1.13.1.tar.gz",
	libmcrypt => "libmcrypt-2.5.7.tar.gz",
	libpng => "libpng-1.4.4.tar.gz",
	libxml2 => "libxml2-2.7.8.tar.gz",
	mhash => "mhash-0.9.9.9.tar.bz2",
	pcre => "pcre-8.10.tar.gz",
	zlib => "zlib-1.2.5.tar.gz"
);


####################
# Initialization
####################

if ( ! -e $prefix ) {
	system "mkdir -p $prefix";
}
if ( ! -e $pkgs ) {
        system "mkdir -p $pkgs";
}
if ( ! -e $build ) {
        system "mkdir -p $build";
}


####################
# Function
####################

sub install {
        my %hash = @_;
        while ( my ($key, $value) = each %hash ) {
                $value =~ m/^([a-zA-Z]+)(.+)(\.tar\.gz|\.tar\.bz2)$/;

		print "\n";
		print "*** INSTALL [$value] ***\n";
		print "\n";

		if ( ! -e "$pkgs/$value" ) {
			system "wget -P $pkgs $download/$value";
		} else {
			print "[INFO] [$value] already exists in the local\n";
		}

		if ( $3 eq "\.tar\.gz" ) {
			system "tar zxvf $pkgs/$value -C $build";
		} elsif ( $3 eq "\.tar\.bz2" ) {
			system "tar jxvf $pkgs/$value -C $build";
		} else {
			print "[ERROR] unknown compression file [$value]\n";
			next;
		}

		# change directory
		chdir "$build/$1$2/";

		system "./configure --prefix=$prefix/$1$2";
		system "make -j $core";
		system "make install";
		system "ln -s $prefix/$1$2 $prefix/$1";

		print "\n";
		print "*** END ***\n";
		print "\n";
        }
}

####################
# Main Program
####################

&install(%lib);