#!/usr/bin/perl -w
# NAME: listlibs.pl
# AIM: Given an input directory, list the *.lib found. Do not duplicate if 'name.lib' and 'named.lib'
# 09/05/2020 - Review
# 29/08/2012 - Add -R <dir> to show list relative to this directory
# 04/11/2011 - Add -F FULL, and -f full - CWD
# 25/10/2011 - Add option to include *.pdb
# 14/09/2011 geoff mclane http://geoffair.net/mperl
use strict;
use warnings;
use File::Basename;  # split path ($name,$dir,$ext) = fileparse($file [, qr/\.[^.]*/] )
use File::Spec; # File::Spec->rel2abs($rel); # get ABSOLUTE PATH form
use File::stat; # to get the file date and size
use Cwd;
my $perl_dir = 'C:\GTools\perl';
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 = $perl_dir."\\temp.$pgmname.txt";
open_log($outfile);

# user variables
my $VERS = "0.0.2 2020-05-09";
###my $VERS = "0.0.1 2011-09-14";
my $load_log = 0;
my $verbosity = 0;
my $recursive = 0;
my $full_path = 0;
my $show_debug = 0;
my $show_debug_only = 0;
my $add_pdb = 0;
my $out_file = '';
my $show_short_form = 1;
my $rel_dir = '';

my $debug_on = 0;
my $def_rel = 'C:\FG\16';
my $def_file = $def_rel.'\3rdParty\lib';
###my $def_file = 'C:\Projects\OSG\OSG-3.0.1\lib';
my $def_out = $perl_dir."\\templist.txt";

### program variables
my @warnings = ();
my $cwd = cwd();
my $os = $^O;
my $in_file = '';
my @file_list = ();

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" );
    }
}

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 is_my_type($) {
    my $fil = shift;
    my ($name,$dir,$ext) = fileparse($fil, qr/\.[^.]*/ );
    return 1 if ($ext =~ /^\.lib$/i);
    return 1 if ($ext =~ /^\.pdb$/i);
    return 0;
}

sub process_in_dir($$);

sub get_short_form($$) {
    my ($fil1,$fil2) = @_;
    my $len1 = length($fil1);
    my $len2 = length($fil2);
    if ($len1 > $len2) {
        my ($ch1,$ch2,$i);
        for ($i = 0; $i < $len2; $i++) {
            $ch1 = substr($fil1,$i,1);
            $ch2 = substr($fil2,$i,1);
            last if ($ch1 ne $ch2);
        }
        $fil1 = substr($fil1,$i);
        $fil1 =~ s/^(\\|\/)//;
        #prt("Lengths fil1=$len1 and fil2=$len2 - return $fil1\n");
    } else {
        ##prt("Lengths fil1=$len1 and fil2=$len2\n");
    }
    return $fil1;
}

sub sub_base_dir($) {
    my $fil1 = shift;
    my $fil2 = $in_file;
    return get_short_form($fil1,$fil2);
}

sub sub_current_directory($) {
    my $fil1 = shift;
    my $fil2 = path_u2d($cwd);
    return get_short_form($fil1,$fil2);
}

sub sub_rel_directory($$) {
    my ($fil1,$fil2) = @_;
    return get_short_form($fil1,$fil2);
}

sub list_files($) {
    my $ra = shift; # = \@file_list
    my $cnt = scalar @{$ra};
    prt("Found $cnt files of type...\n");
    my %names = ();
    my @new_list = ();
    my @dbg_list = ();
    my ($nm,$dr,$ex,$ff,$nm2,$i,$sf,$sz,$sb,$total,$nn,$gtot,$dout);
    foreach $ff (@{$ra}) {
        ($nm,$dr,$ex) = fileparse($ff, qr/\.[^.]*/ );
        # $names{$nm} = 1;
        $names{$nm} = 1 if ($ex =~ /^\.lib$/i);  # add the LIB names
    }
    foreach $ff (@{$ra}) {
        ($nm,$dr,$ex) = fileparse($ff, qr/\.[^.]*/ );
        $sf = sub_base_dir($ff);
        if ($ex =~ /^\.pdb$/) {
            push(@dbg_list,[$sf,$ff]) if (defined $names{$nm}); # add DEBUG only if 'name' exists
            next;
        } elsif ($nm =~ /_d$/i) {
            $nm2 = $nm;
            $nm2 =~ s/_d$//i;
            if (defined $names{$nm2}) {
                push(@dbg_list,[$sf,$ff]);
                next;
            }
        } elsif ($nm =~ /d$/i) {
            $nm2 = $nm;
            $nm2 =~ s/d$//i;
            if (defined $names{$nm2}) {
                push(@dbg_list,[$sf,$ff]);
                next;
            }
        }
        prt("$sf\n") if (VERB9());
        push(@new_list,[$sf,$ff]);
    }

    my $ncnt = scalar @new_list;
    my $dcnt = scalar @dbg_list;
    my $msg = '';
    my $out = (length($out_file)) ? 0 : 1;
    prt("Release List $ncnt libraries, $dcnt debug form...\n");
    $total = 0;
    if (!$show_debug_only) {
        for ($i = 0; $i < $ncnt; $i++) {
            $sf = $new_list[$i][0];
            $ff = $new_list[$i][1];
            $sz = 0;
            if ($sb = stat($ff)) {
                $sz = $sb->size;
            }
            $total += $sz;
            if ($show_short_form) {
                if (length($rel_dir)) {
                    $ff = sub_rel_directory($ff,$rel_dir);
                } else {
                    $ff = sub_current_directory($ff);
                }
            }
            if ($full_path) {
                prt("$ff\n") if ($out);
                $msg .= "$ff\n";
            } else {
                prt("$sf\n") if ($out);
                $msg .= "$sf\n";
            }
        }
        $gtot = $total;
        if ($total > 100000) {
            $nn = util_bytes2ks($total);
            $nn .= " (".get_nn($total)." bytes)";
        } else {
            $nn = get_nn($total).' bytes';
        }
        prt("Done Release list $ncnt libraries... total $nn...\n") if ($ncnt);
    }
    if ($dcnt && $show_debug) {
        prt("Debug List - up to $dcnt libraries...\n");
        $total = 0;
        $dout = 0;
        for ($i = 0; $i < $dcnt; $i++) {
            $sf = $dbg_list[$i][0];
            $ff = $dbg_list[$i][1];
            if (!$add_pdb) {
                next if ($sf =~ /\.pdb$/i);
            }
            $dout++;
            $sz = 0;
            if ($sb = stat($ff)) {
                $sz = $sb->size;
            }
            $total += $sz;
            if ($show_short_form) {
                if (length($rel_dir)) {
                    $ff = sub_rel_directory($ff,$rel_dir);
                } else {
                    $ff = sub_current_directory($ff);
                }
            }
            if ($full_path) {
                prt("$ff\n") if ($out);
                $msg .= "$ff\n";
            } else {
                prt("$sf\n") if ($out);
                $msg .= "$sf\n";
            }
        }
        $gtot += $total;
        if ($total > 100000) {
            $nn = util_bytes2ks($total);
            $nn .= " (".get_nn($total)." bytes)";
        } else {
            $nn = get_nn($total).' bytes';
        }
        prt("Done Debug list $dout libraries... total $nn...\n");
        if ($gtot > 100000) {
            $nn = util_bytes2ks($gtot);
            $nn .= " (".get_nn($gtot)." bytes)";
        } else {
            $nn = get_nn($gtot).' bytes';
        }
        prt("Grand total $nn\n");
    }
    if (length($out_file)) {
        write2file($msg,$out_file);
        prt("Written list to [$out_file]\n");
    }
}


sub process_in_dir($$) {
    my ($dir,$lev) = @_;
    my $lib = '';
    if (opendir(DIR,$dir)) {
        my @files = readdir(DIR);
        closedir(DIR);
        my $cnt = scalar @files;
        prt("Found $cnt items in [$dir]\n") if (VERB5());
        my ($file,$ff);
        my @dirs = ();
        $dir .= "\\" if ( !($dir =~ /(\\|\/)$/) );
        foreach $file (@files) {
            next if (($file eq '.')||($file eq '..'));
            $ff = $dir.$file;
            if (-f $ff) {
                prt("$file\n") if (VERB9());
                push(@file_list,$ff) if (is_my_type($file));
            } elsif (-d $ff) {
                if ($recursive) {
                    push(@dirs,$ff);
                } else {
                    if ($file =~ /^lib$/i) {
                        $lib = $ff;
                    } else {
                        push(@dirs,$ff);
                    }
                }
            } else {
                # quietly ignore
            }
        }
        if (length($lib)) {
            process_in_dir($lib,$lev+1);
        }
        if ($recursive && @dirs) {
            foreach $ff (@dirs) {
                process_in_dir($ff,$lev+1);
            }
        }
        if ($lev == 0) {
            list_files(\@file_list);
        }
    } else {
        prt("ERROR: Unable to open directory [$dir]!\n");
    }
}


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);
    $lnn = 0;
    foreach $line (@lines) {
        chomp $line;
        $lnn++;
        if ($line =~ /\s*#\s*include\s+(.+)$/) {
            $inc = $1;
            prt("$lnn: $inc\n");
        }
    }
}

#########################################
### MAIN ###
parse_args(@ARGV);
###prt( "$pgmname: in [$cwd]: Hello, World...\n" );
process_in_dir($in_file,0);
pgm_exit(0,"");
########################################
sub give_help {
    prt("$pgmname: version $VERS\n");
    prt("Usage: $pgmname [options] in-file\n");
    prt("Options:\n");
    prt(" --help  (-h or -?) = This help, and exit 0.\n");
    prt(" --debug       (-d) = Also show DEBUG list.\n");
    prt(" --DEBUG       (-D) = Only output the DEBUG list of libraries.\n");
    prt(" --Full        (-F) = Show FULL qualified path.\n");
    prt(" --full        (-f) = Show full path minus CWD, REL directory if given.\n");
    prt(" --loadlog     (-l) = Load LOG file at end.\n");
    prt(" --out <file>  (-o) = Write list to output file.\n");
    prt(" --pdb         (-p) = Include program database files (*.pdb). Implies -d debug list.\n");
    prt(" --recursive   (-r) = Recursively process sub-directories.\n");
    prt(" --REL <dir>   (-R) = Show list releative to this directory.\n");
    prt(" --verb[n]     (-v) = Bump [or set] verbosity. def=$verbosity\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 =~ /^d/) {
                $show_debug = 1;
                prt("Set to show DEBUG libraries also.\n") if (VERB1());
            } elsif ($sarg =~ /^D/) {
                $show_debug = 1;
                $show_debug_only = 1;
                prt("Set to show DEBUG libraries only.\n") if (VERB1());
            } elsif ($sarg =~ /^F/) {
                $full_path = 1;
                $show_short_form = 0;
                prt("Set to show FULL PATH.\n") if (VERB1());
            } elsif ($sarg =~ /^f/) {
                $full_path = 1;
                prt("Set to show full PATH excluding CWD.\n") if (VERB1());
            } elsif ($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 to output list file to $out_file.\n") if (VERB1());
            } elsif ($sarg =~ /^p/) {
                $show_debug = 1;
                $add_pdb = 1;
                prt("Set to show DEBUG libraries and *.pdb also.\n") if (VERB1());
            } elsif ($sarg =~ /^R/) {
                need_arg(@av);
                shift @av;
                $sarg = $av[0];
                $rel_dir = path_u2d($sarg);
                prt("Set to show relative to this directory $rel_dir.\n") if (VERB1());
            } elsif ($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 =~ /^r/) {
                $recursive = 1;
                prt("Set resursive into sub-directories.\n") if (VERB1());
            } else {
                pgm_exit(1,"ERROR: Invalid argument [$arg]! Try -?\n");
            }
        } else {
            $in_file = File::Spec->rel2abs($arg);
            prt("Set input to [$in_file]\n") if (VERB1());
        }
        shift @av;
    }

    if ((length($in_file) ==  0) && $debug_on) {
        $in_file = $def_file;
        ###$recursive = 1;
        $rel_dir = $def_rel;
        ###$show_short_form = 0;
        $full_path = 1;
        $out_file = $def_out;
        $show_debug = 1;
        $show_debug_only = 1;

    }
    if (length($in_file) ==  0) {
        pgm_exit(1,"ERROR: No input directory found in command!\n");
    }
    if (! -d $in_file) {
        pgm_exit(1,"ERROR: Unable to find in directory [$in_file]! Check name, location...\n");
    }
    if ($full_path) {
       $in_file = File::Spec->rel2abs($in_file);
    }
}

# eof - template.pl