Prevent extraneous empty lines in compiler output
[gruntmaster-daemon.git] / lib / Gruntmaster / Daemon / Format.pm
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1package Gruntmaster::Daemon::Format;
2
3use 5.014000;
4use strict;
5use warnings;
6use parent qw/Exporter/;
9577371b 7no if $] > 5.017011, warnings => 'experimental::smartmatch';
ddceb393 8
fdb99417 9use Expect::Simple;
ddceb393 10use File::Basename qw/fileparse/;
c40a2dd0 11use File::Slurp qw/read_file write_file/;
ddceb393 12use List::MoreUtils qw/natatime/;
f5e29130 13use Log::Log4perl qw/get_logger/;
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14use POSIX qw/mkfifo/;
15use String::ShellQuote qw/shell_quote/;
c40a2dd0 16use Try::Tiny;
ddceb393 17
99d37110 18our $VERSION = '5999.000_004';
fdb99417 19our @EXPORT_OK = qw/prepare_files stopvms/;
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20
21##################################################
22
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23our (%vm);
24
25sub runvm {
26 my ($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} $name",
33 Prompt => '# ',
34 DisconnectCmd => 'exit',
35 RawPty => 1,
36 Timeout => 10,
37 });
38}
39
40sub stopvms { %vm = () }
41
c40a2dd0 42sub execlist {
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43 my ($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);
c40a2dd0 49 } else {
99d37110 50 my $ret = fork // die "Cannot fork\n";
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51 if ($ret) {
52 waitpid $ret, 0;
53 } else {
99d37110 54 open STDOUT, '>', $er or die "Cannot open $er\n";
e61f1a82 55 get_logger->trace("Running: gruntmaster-exec @args");
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56 exec 'gruntmaster-exec', @args;
57 }
c40a2dd0 58 }
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59
60 die "gruntmaster-exec died\n" if -z $er;
61 my ($excode, $exmsg) = read_file $er;
62 unlink $er;
99d37110 63 chomp ($excode, $exmsg); ## no critic (ProhibitParensWithBuiltins)
fdb99417 64 get_logger->trace("Exec result: $excode $exmsg");
99d37110 65 die [$excode, $exmsg] if $excode > 0; ## no critic (RequireCarping)
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66}
67
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68sub mkrun{
69 my $format = shift;
70 sub{
d16a999c 71 local *__ANON__ = 'mkrun_runner';
ddceb393 72 my ($name, %args) = @_;
d16a999c 73 get_logger->trace("Running $name...");
99d37110 74 my $basename = fileparse $name, qr/[.][^.]*/s;
4e08f696 75 my @args = ('--nobody');
16724726 76 push @args, '--no-close' if $ENV{TEST_VERBOSE};
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77 push @args, '--timeout', $args{timeout} if $args{timeout};
78 push @args, '--mlimit', $args{mlimit} if $args{mlimit};
79 push @args, '--olimit', $args{olimit} if $args{olimit};
80 my @fds = exists $args{fds} ? @{$args{fds}} : ();
81 my $it = natatime 2, @fds;
82 while (my ($fd, $file) = $it->()) {
83 push @args, "--fd=$fd $file";
ddceb393 84 }
77ba721e 85 execlist $basename, @args, '--', "./$basename", @{$args{args}}
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86 }
87}
88
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89sub prepare{
90 my ($name, $format) = @_;
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91 get_logger->trace("Preparing file $name...");
92
c40a2dd0 93 try {
fdb99417 94 execlist prog => '--fd=1 >>errors', '--fd=2 >>errors', 'gruntmaster-compile', $format, $name;
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95 } catch {
96 die "Compile error\n"
97 } finally {
98 $Gruntmaster::Daemon::errors .= read_file 'errors';
837911b3 99 $Gruntmaster::Daemon::errors .= "\n" if -s 'errors';
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100 unlink 'errors';
101 };
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102}
103
104sub prepare_files{
105 my $meta = shift;
fdb99417 106 runvm $_ for keys %{$meta->{files}};
ad77b7d3 107
759d3ca5 108 for my $file (values %{$meta->{files}}) {
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109 my ($format, $name, $content) = @{$file}{qw/format name content/};
110
111 $file->{run} = mkrun($format);
112 write_file $name, $content;
113 prepare $name, $format;
114 }
115}
116
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1171;
118__END__
119
120=encoding utf-8
121
122=head1 NAME
123
124Gruntmaster::Daemon::Format - Utility functions for handling source files
125
126=head1 SYNOPSIS
127
128 use Gruntmaster::Daemon::Format qw/prepare_files/;
129 prepare_files { files => {
130 prog => {
131 name => 'prog.pl',
132 format => 'PERL',
133 content => 'print "Hello, world!"'
134 },
135 ver => {
136 name => 'ver.cpp',
137 format => 'CPP',
138 content => ...
139 },
140 }};
141
142=head1 DESCRIPTION
143
144Gruntmaster::Daemon::Format exports utility functions for handling source files.
145
146=over
147
148=item B<prepare_files> I<$meta>
149
150Compiles all the source files in C<< $meta->{files} >>.
151
152=back
153
154=head1 AUTHOR
155
156Marius Gavrilescu E<lt>marius@ieval.roE<gt>
157
158=head1 COPYRIGHT AND LICENSE
159
160Copyright (C) 2014 by Marius Gavrilescu
161
162This library is free software: you can redistribute it and/or modify
163it under the terms of the GNU Affero General Public License as published by
164the Free Software Foundation, either version 3 of the License, or
165(at your option) any later version.
166
167
168=cut
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