#!/usr/bin/perl -w
# NAME: zip2nsis.pl
# AIM: Take output form WinZip command line tool, and convert to NSIS include script
# 06/06/2012 - Initial cut
use strict;
use warnings;
use File::Basename;  # split path ($name,$dir,$ext) = fileparse($file [, qr/\.[^.]*/] )
use Cwd;
my $os = $^O;
my $perl_dir = '/home/geoff/bin';
my $PATH_SEP = '/';
my $temp_dir = '/tmp';
if ($os =~ /win/i) {
    $perl_dir = 'C:\GTools\perl';
    $temp_dir = $perl_dir;
    $PATH_SEP = "\\";
}
unshift(@INC, $perl_dir);
require 'lib_utils.pl' or die "Unable to load 'lib_utils.pl' Check paths in \@INC...\n";
# log file stuff
our ($LF);
my $pgmname = $0;
if ($pgmname =~ /(\\|\/)/) {
    my @tmpsp = split(/(\\|\/)/,$pgmname);
    $pgmname = $tmpsp[-1];
}
my $outfile = $temp_dir.$PATH_SEP."temp.$pgmname.txt";
open_log($outfile);

# user variables
my $VERS = "0.0.1 2012-06-06";
my $load_log = 0;
my $in_file = '';
my $verbosity = 0;
my $out_file = '';

my $debug_on = 0;
my $def_file = 'C:\FG\16\build-install\fgdata-list.txt';

### program variables
my @warnings = ();
my $cwd = cwd();

sub VERB1() { return $verbosity >= 1; }
sub VERB2() { return $verbosity >= 2; }
sub VERB5() { return $verbosity >= 5; }
sub VERB9() { return $verbosity >= 9; }

sub show_warnings($) {
    my ($val) = @_;
    if (@warnings) {
        prt( "\nGot ".scalar @warnings." WARNINGS...\n" );
        foreach my $itm (@warnings) {
           prt("$itm\n");
        }
        prt("\n");
    } else {
        prt( "\nNo warnings issued.\n\n" ) if (VERB9());
    }
}

sub pgm_exit($$) {
    my ($val,$msg) = @_;
    if (length($msg)) {
        $msg .= "\n" if (!($msg =~ /\n$/));
        prt($msg);
    }
    show_warnings($val);
    close_log($outfile,$load_log);
    exit($val);
}


sub prtw($) {
   my ($tx) = shift;
   $tx =~ s/\n$//;
   prt("$tx\n");
   push(@warnings,$tx);
}

sub process_in_file($) {
    my ($inf) = @_;
    if (! open INF, "<$inf") {
        pgm_exit(1,"ERROR: Unable to open file [$inf]\n"); 
    }
    my @lines = <INF>;
    close INF;
    my $lncnt = scalar @lines;
    prt("Processing $lncnt lines, from [$inf]...\n");
    my ($line,$inc,$lnn,$sz,$cnt,@arr,$ra);
    my ($name,$dir);
    $lnn = 0;
    $cnt = 0;
    @arr = ();
    my %hash = ();
    foreach $line (@lines) {
        chomp $line;
        $lnn++;
        if ($line =~ /\s*(\d+)\s+\d+\s*\d+\%\s+\d{2}\/\d{2}\/\d{4}\s+\d{2}:\d{2}\s+(.+)$/) {
            #prt("$lnn: $line\n");
            $sz = $1;
            $inc = $2;
            if ($sz > 0) {
                $cnt++;
                #prt("$lnn:$cnt: $inc\n");
                push(@arr,$inc);
                ($name,$dir) = fileparse($inc);
                $hash{$dir} = [] if (!defined $hash{$dir});
                $ra = $hash{$dir};
                push(@{$ra},$name);
            }
        }
    }
    $cnt = 0;
    foreach $line (sort @arr) {
        $cnt++;
        prt("$cnt: $line\n");
    }
    $cnt = 0;
    prt("\nNow as NSIS script...\n");
    #  SetOutPath $INSTDIR\fgdata
    #  File ${FGData}\*
    my $script = '';
    foreach $dir (sort keys %hash) {
        $ra = $hash{$dir};
        $dir =~ s/\\$//;
        $dir = '' if ($dir eq '.');
        $script .= "  SetOutPath \$INSTDIR\\fgdata";
        $script .= "\\$dir" if (length($dir));
        $script .= "\n";
        foreach $line (sort @{$ra}) {
            $cnt++;
            prt("$cnt: $dir\\$line\n");
            $script .= "  File \${FGData}\\";
            $script .= "$dir\\" if (length($dir));
            $script .= "$line\n";
        }
    }
    if (length($out_file)) {
        write2file("# NSIS Script\n$script\n# ============\n",$out_file);
        prt("Script written to [$out_file]\n");
    } else {
        prt("# NSIS Script\n$script\n# ============\n");
        prt("No OUPUT file given. Use -o Out-File\n");
    }

}

#########################################
### MAIN ###
parse_args(@ARGV);
process_in_file($in_file);
pgm_exit(0,"");
########################################

sub give_help {
    prt("$pgmname: version $VERS\n");
    prt("Usage: $pgmname [options] zip-list-in-file\n");
    prt("Options:\n");
    prt(" --help  (-h or -?) = This help, and exit 0.\n");
    prt(" --verb[n]     (-v) = Bump [or set] verbosity. def=$verbosity\n");
    prt(" --load        (-l) = Load LOG at end. ($outfile)\n");
    prt(" --out <file>  (-o) = Write NSIS script output to this file.\n");
}

sub need_arg {
    my ($arg,@av) = @_;
    pgm_exit(1,"ERROR: [$arg] must have a following argument!\n") if (!@av);
}

sub parse_args {
    my (@av) = @_;
    my ($arg,$sarg);
    while (@av) {
        $arg = $av[0];
        if ($arg =~ /^-/) {
            $sarg = substr($arg,1);
            $sarg = substr($sarg,1) while ($sarg =~ /^-/);
            if (($sarg =~ /^h/i)||($sarg eq '?')) {
                give_help();
                pgm_exit(0,"Help exit(0)");
            } elsif ($sarg =~ /^v/) {
                if ($sarg =~ /^v.*(\d+)$/) {
                    $verbosity = $1;
                } else {
                    while ($sarg =~ /^v/) {
                        $verbosity++;
                        $sarg = substr($sarg,1);
                    }
                }
                prt("Verbosity = $verbosity\n") if (VERB1());
            } elsif ($sarg =~ /^l/) {
                $load_log = 1;
                prt("Set to load log at end.\n") if (VERB1());
            } elsif ($sarg =~ /^o/) {
                need_arg(@av);
                shift @av;
                $sarg = $av[0];
                $out_file = $sarg;
                prt("Set out file to [$out_file].\n") if (VERB1());
            } else {
                pgm_exit(1,"ERROR: Invalid argument [$arg]! Try -?\n");
            }
        } else {
            $in_file = $arg;
            prt("Set input to [$in_file]\n") if (VERB1());
        }
        shift @av;
    }

    if ((length($in_file) ==  0) && $debug_on) {
        $in_file = $def_file;
        prt("Set DEFAULT input to [$in_file]\n");
        #$load_log = 1;
        $out_file = $temp_dir.$PATH_SEP."tempNSIS.txt";
    }
    if (length($in_file) ==  0) {
        pgm_exit(1,"ERROR: No input files found in command!\n");
    }
    if (! -f $in_file) {
        pgm_exit(1,"ERROR: Unable to find in file [$in_file]! Check name, location...\n");
    }
}

# eof - template.pl