lib/Gruntmaster/Daemon/Format.pm

   1 package Gruntmaster::Daemon::Format;
   2
   3 use 5.014000;
   4 use strict;
   5 use warnings;
   6 use parent qw/Exporter/;
   7 no if $] > 5.017011, warnings => 'experimental::smartmatch';
   8
   9 use Expect::Simple;
  10 use File::Basename qw/fileparse/;
  11 use File::Slurp qw/read_file write_file/;
  12 use List::MoreUtils qw/natatime/;
  13 use Log::Log4perl qw/get_logger/;
  14 use POSIX qw/mkfifo/;
  15 use String::ShellQuote qw/shell_quote/;
  16 use Try::Tiny;
  17
  18 our $VERSION = '5999.000_004';
  19 our @EXPORT_OK = qw/prepare_files stopvms/;
  20
  21 ##################################################
  22
  23 our (%vm);
  24
  25 sub runvm {
  26         my ($name) = @_;
  27         return unless $ENV{GRUNTMASTER_VM};
  28         mkfifo "$name.in", 0600;
  29         mkfifo "$name.out", 0600;
  30         get_logger->trace("Starting VM $name");
  31         $vm{$name} = Expect::Simple->new({
  32                 Cmd => "$ENV{GRUNTMASTER_VM} $name",
  33                 Prompt => '# ',
  34                 DisconnectCmd => 'exit',
  35                 RawPty => 1,
  36                 Timeout => 10,
  37         });
  38 }
  39
  40 sub stopvms { %vm = () }
  41
  42 sub execlist {
  43         my ($vm, @args) = @_;
  44         my $er = "exec-result-$vm";
  45         if ($vm{$vm}) {
  46                 my $cmd = ">$er " . shell_quote 'gruntmaster-exec', @args;
  47                 get_logger->trace("Running in VM $vm: $cmd");
  48                 $vm{$vm}->send($cmd);
  49         } else {
  50                 my $ret = fork // die "Cannot fork\n";
  51                 if ($ret) {
  52                         waitpid $ret, 0;
  53                 } else {
  54                         open STDOUT, '>', $er or die "Cannot open $er\n";
  55                         exec 'gruntmaster-exec', @args;
  56                 }
  57         }
  58
  59         die "gruntmaster-exec died\n" if -z $er;
  60         my ($excode, $exmsg) = read_file $er;
  61         unlink $er;
  62         chomp ($excode, $exmsg); ## no critic (ProhibitParensWithBuiltins)
  63         get_logger->trace("Exec result: $excode $exmsg");
  64         die [$excode, $exmsg] if $excode > 0; ## no critic (RequireCarping)
  65 }
  66
  67 sub command_and_args{
  68         my ($format, $basename) = @_;
  69
  70         given($format) {
  71                 "./$basename" when [qw/C CPP GCCGO GOLANG HASKELL PASCAL/];
  72                 "./$basename.exe" when 'MONO';
  73                 java => $basename when 'JAVA';
  74                 perl => $basename when 'PERL';
  75                 python => $basename when 'PYTHON';
  76                 default { die "Don't know how to execute format $format\n" }
  77         }
  78 }
  79
  80 sub mkrun{
  81         my $format = shift;
  82         sub{
  83                 local *__ANON__ = 'mkrun_runner';
  84                 my ($name, %args) = @_;
  85                 get_logger->trace("Running $name...");
  86                 my $basename = fileparse $name, qr/[.][^.]*/s;
  87                 my @args;
  88                 push @args, '--timeout', $args{timeout} if $args{timeout};
  89                 push @args, '--mlimit',  $args{mlimit}  if $args{mlimit};
  90                 push @args, '--olimit',  $args{olimit}  if $args{olimit};
  91                 my @fds = exists $args{fds} ? @{$args{fds}} : ();
  92                 my $it = natatime 2, @fds;
  93                 while (my ($fd, $file) = $it->()) {
  94                         push @args, "--fd=$fd $file";
  95                 }
  96                 execlist $basename, @args, command_and_args($format, $basename);
  97         }
  98 }
  99
 100 sub prepare{
 101         my ($name, $format) = @_;
 102         get_logger->trace("Preparing file $name...");
 103
 104         try {
 105                 execlist prog => '--fd=1 >>errors', '--fd=2 >>errors', 'gruntmaster-compile', $format, $name;
 106         } catch {
 107                 die "Compile error\n"
 108         } finally {
 109                 $Gruntmaster::Daemon::errors .= read_file 'errors';
 110                 $Gruntmaster::Daemon::errors .= "\n";
 111                 unlink 'errors';
 112         };
 113 }
 114
 115 sub prepare_files{
 116         my $meta = shift;
 117         runvm $_ for keys %{$meta->{files}};
 118
 119         for my $file (values %{$meta->{files}}) {
 120                 my ($format, $name, $content) = @{$file}{qw/format name content/};
 121
 122                 $file->{run} = mkrun($format);
 123                 write_file $name, $content;
 124                 prepare $name, $format;
 125         }
 126 }
 127
 128 1;
 129 __END__
 130
 131 =encoding utf-8
 132
 133 =head1 NAME
 134
 135 Gruntmaster::Daemon::Format - Utility functions for handling source files
 136
 137 =head1 SYNOPSIS
 138
 139   use Gruntmaster::Daemon::Format qw/prepare_files/;
 140   prepare_files { files => {
 141     prog => {
 142       name => 'prog.pl',
 143       format => 'PERL',
 144       content => 'print "Hello, world!"'
 145     },
 146     ver => {
 147       name => 'ver.cpp',
 148       format => 'CPP',
 149       content => ...
 150     },
 151   }};
 152
 153 =head1 DESCRIPTION
 154
 155 Gruntmaster::Daemon::Format exports utility functions for handling source files.
 156
 157 =over
 158
 159 =item B<prepare_files> I<$meta>
 160
 161 Compiles all the source files in C<< $meta->{files} >>.
 162
 163 =back
 164
 165 =head1 AUTHOR
 166
 167 Marius Gavrilescu E<lt>marius@ieval.roE<gt>
 168
 169 =head1 COPYRIGHT AND LICENSE
 170
 171 Copyright (C) 2014 by Marius Gavrilescu
 172
 173 This library is free software: you can redistribute it and/or modify
 174 it under the terms of the GNU Affero General Public License as published by
 175 the Free Software Foundation, either version 3 of the License, or
 176 (at your option) any later version.
 177
 178
 179 =cut