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#
#  Version 3.x, Copyright (C) 2004-2013, Marcus Holland-Moritz.
#  Version 2.x, Copyright (C) 2001, Paul Marquess.
#  Version 1.x, Copyright (C) 1999, Kenneth Albanowski.
#
#  This program is free software; you can redistribute it and/or
#  modify it under the same terms as Perl itself.
#
################################################################################

use strict;
use File::Path;
use File::Copy;
use Getopt::Long;
use Pod::Usage;

require './devel/devtools.pl';
require './parts/ppptools.pl';

our %opt = (
  check   => 1,
  debug   => 0,
  verbose => 0,
  yes     => 0,
);

GetOptions(\%opt, qw( check! verbose yes install=s blead=s blead-version=s
                      debug=i debug-start=s skip-devels)) or die pod2usage();

identify();

unless (-e 'parts/embed.fnc' and -e 'parts/apidoc.fnc') {
  print "\nOooops, $0 must be run from the Devel::PPPort root directory.\n";
  quit_now();
}

if (! $opt{'yes'}) {
    ask_or_quit("Are you SURE you have:\n1) updated parts/embed.fnc to"
              . "latest blead?\n2) run devel/mkapidoc.pl to update"
              . " parts/apidoc.fnc?\n3) run devel/mkppport_fnc.pl to"
              . "update parts/ppport.fnc?\n");
}

my $files_glob_pattern = '[12345789]*';
my %files = map { ($_ => [glob "parts/$_/$files_glob_pattern"]) } qw( base todo );

my(@notwr, @wr);
for my $f (map @$_, values %files) {
  push @{-w $f ? \@wr : \@notwr}, $f;
}

if (@notwr) {
  if (@wr) {
    print "\nThe following files are not writable:\n\n";
    print "    $_\n" for @notwr;
    print "\nAre you sure you have checked out these files?\n";
  }
  else {
    print "\nAll baseline / todo file are not writable.\n";
    ask_or_quit("Do you want to try to check out these files?");
    unless (runtool("wco", "-l", "-t", "locked by $0", @notwr)) {
      print "\nSomething went wrong while checking out the files.\n";
      quit_now();
    }
  }
}

# Check that there is only one entry in the whole system for each item
my @embeds = parse_embed(qw(parts/embed.fnc parts/apidoc.fnc parts/ppport.fnc));
my %seen;
for my $entry (@embeds) {
    my $Mflag = defined $entry->{flags}{M};
    $seen{"$entry->{name}/$entry->{cond}/$Mflag"}++;
}
my %bads = grep { $seen{$_} > 1 } keys %seen;
if (keys %bads) {
    print "The following items have multiple entries in the parts/*.fnc files.\n",
          " Regenerate apidoc.fnc, then ppport.fnc and try again.  If this\n",
          " doesn't work, choose the best version for each symbol and delete\n",
          " the others: ",
        join "\n", keys %bads, "\n";
    quit_now();
}

if (-e 'ppport.h') {
    my $blead = $opt{blead};
    $blead = get_and_sort_perls(\%opt)->[0]->{path} unless $blead;

    # Get list of things we provide
    my %provided = map { /^(\w+)/ ? ( $1 => 1 ) : () }
                                            `$blead ppport.h --list-provided`;

    # Get the list of macros that are hard to test.
    my @unorthodox = map { exists $_->{flags}{u} ? $_->{name} : () } @embeds;

    # Keep on that list only the things we provide
    @unorthodox = grep { exists $provided{$_} } @unorthodox;

    # And get the list of known hard things.
    my $hard_ref = &known_but_hard_to_test_for;

    # If we provide something, it better be on the known things list
    my @bad = grep { ! exists $hard_ref->{$_} } @unorthodox;
    undef @bad;
    if (@bad) {
        print "The following items need to be manually added to the list in",
            " parts/ppptools.pl: known_but_hard_to_test_for(): ",
            join ", ", @bad, "\n";
        quit_now();
    }
}

# If starting in the middle, don't zap what we've already done
if (! $opt{'debug-start'}) {
    for my $dir (qw( base todo )) {
        my $cur_file_count = @{$files{$dir}};
        next unless $cur_file_count > 0;  # Don't remove if nothing to back up
        my $cur = "parts/$dir";
        my $old = "$cur-old";
        if (-e $old) {
            my @temp = glob "parts/$dir/$files_glob_pattern";