Blame devel/scanprov

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#!/usr/bin/perl -w
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################################################################################
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#
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#  scanprov -- scan Perl headers for provided macros
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#
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################################################################################
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#
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#  Version 3.x, Copyright (C) 2004-2013, Marcus Holland-Moritz.
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#  Version 2.x, Copyright (C) 2001, Paul Marquess.
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#  Version 1.x, Copyright (C) 1999, Kenneth Albanowski.
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#
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#  This program is free software; you can redistribute it and/or
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#  modify it under the same terms as Perl itself.
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#
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################################################################################
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use strict;
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use Getopt::Long;
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require './parts/ppptools.pl';
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our %opt = (
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  mode    => 'check',
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  install => '/tmp/perl/install/default',
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  blead   => 'bleadperl',
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);
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GetOptions(\%opt, qw( install=s mode=s blead=s )) or die;
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my $write = $opt{mode} eq 'write';
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my %embed = map { ( $_->{name} => 1 ) }
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            parse_embed(qw(parts/embed.fnc parts/apidoc.fnc parts/ppport.fnc ));
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my @provided = grep { !exists $embed{$_} }
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               map { /^(\w+)/ ? $1 : () }
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               `$^X ppport.h --list-provided`;
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my @perls = sort { $b->{version} <=> $a->{version} }
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            map { { version => `$_ -e 'printf "%.6f", \$]'`, path => $_ } }
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            ($opt{blead}, glob "$opt{install}/*/bin/perl5.*");
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for (1 .. $#perls) {
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  $perls[$_]{todo} = $perls[$_-1]{version};
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}
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shift @perls;
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my %v;
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for my $p (@perls) {
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  print "checking perl $p->{version}...\n";
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  my $archlib = `$p->{path} -MConfig -l -e 'print \$Config{archlib}'`;
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  chomp $archlib;
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  local @ARGV = glob "$archlib/CORE/*.h";
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  my %sym;
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  while (<>) { $sym{$_}++ for /(\w+)/g; }
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  @provided = map { $sym{$_} or $v{$p->{todo}}{$_}++; $sym{$_} ? $_ : () } @provided;
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}
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my $out = 'parts/base';
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my $todo = parse_todo($out);
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for my $v (keys %v) {
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  my @new = sort grep { !exists $todo->{$_} } keys %{$v{$v}};
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  @new or next;
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  my $file = $v;
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  $file =~ s/\.//g;
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  $file = "$out/$file";
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  -e $file or die "non-existent: $file\n";
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  print "-- $file --\n";
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  $write and (open F, ">>$file" or die "$file: $!\n");
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  for (@new) {
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    print "adding $_\n";
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    $write and printf F "%-30s # added by $0\n", $_;
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  }
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  $write and close F;
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}