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[perl5.git] / lib / Module / Build / Platform / Windows.pm
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bb4e9162
YST
1package Module::Build::Platform::Windows;
2
3use strict;
4
5use Config;
6use File::Basename;
7use File::Spec;
8use IO::File;
9
10use Module::Build::Base;
11
12use vars qw(@ISA);
13@ISA = qw(Module::Build::Base);
14
15
16sub manpage_separator {
17 return '.';
18}
19
dc8021d3 20sub have_forkpipe { 0 }
a314697d 21
bb4e9162
YST
22sub ACTION_realclean {
23 my ($self) = @_;
24
25 $self->SUPER::ACTION_realclean();
26
27 my $basename = basename($0);
28 $basename =~ s/(?:\.bat)?$//i;
29
30 if ( $basename eq $self->build_script ) {
31 if ( $self->build_bat ) {
32 my $full_progname = $0;
33 $full_progname =~ s/(?:\.bat)?$/.bat/i;
34
35 # Vodoo required to have a batch file delete itself without error;
36 # Syntax differs between 9x & NT: the later requires a null arg (???)
37 require Win32;
38 my $null_arg = (Win32::IsWinNT()) ? '""' : '';
39 my $cmd = qq(start $null_arg /min "\%comspec\%" /c del "$full_progname");
40
41 my $fh = IO::File->new(">> $basename.bat")
42 or die "Can't create $basename.bat: $!";
43 print $fh $cmd;
44 close $fh ;
45 } else {
46 $self->delete_filetree($self->build_script . '.bat');
47 }
48 }
49}
50
51sub make_executable {
52 my $self = shift;
53
54 $self->SUPER::make_executable(@_);
55
56 foreach my $script (@_) {
57 my %opts = ();
58 if ( $script eq $self->build_script ) {
59 $opts{ntargs} = q(-x -S %0 --build_bat %*);
60 $opts{otherargs} = q(-x -S "%0" --build_bat %1 %2 %3 %4 %5 %6 %7 %8 %9);
61 }
62
63 my $out = eval {$self->pl2bat(in => $script, update => 1, %opts)};
64 if ( $@ ) {
65 $self->log_warn("WARNING: Unable to convert file '$script' to an executable script:\n$@");
66 } else {
67 $self->SUPER::make_executable($out);
68 }
69 }
70}
71
72# This routine was copied almost verbatim from the 'pl2bat' utility
73# distributed with perl. It requires too much vodoo with shell quoting
74# differences and shortcomings between the various flavors of Windows
75# to reliably shell out
76sub pl2bat {
77 my $self = shift;
78 my %opts = @_;
79
80 # NOTE: %0 is already enclosed in doublequotes by cmd.exe, as appropriate
81 $opts{ntargs} = '-x -S %0 %*' unless exists $opts{ntargs};
82 $opts{otherargs} = '-x -S "%0" %1 %2 %3 %4 %5 %6 %7 %8 %9' unless exists $opts{otherargs};
83
84 $opts{stripsuffix} = '/\\.plx?/' unless exists $opts{stripsuffix};
85 $opts{stripsuffix} = ($opts{stripsuffix} =~ m{^/([^/]*[^/\$]|)\$?/?$} ? $1 : "\Q$opts{stripsuffix}\E");
86
87 unless (exists $opts{out}) {
88 $opts{out} = $opts{in};
89 $opts{out} =~ s/$opts{stripsuffix}$//oi;
90 $opts{out} .= '.bat' unless $opts{in} =~ /\.bat$/i or $opts{in} =~ /^-$/;
91 }
92
93 my $head = <<EOT;
94 \@rem = '--*-Perl-*--
95 \@echo off
96 if "%OS%" == "Windows_NT" goto WinNT
97 perl $opts{otherargs}
98 goto endofperl
99 :WinNT
100 perl $opts{ntargs}
101 if NOT "%COMSPEC%" == "%SystemRoot%\\system32\\cmd.exe" goto endofperl
102 if %errorlevel% == 9009 echo You do not have Perl in your PATH.
103 if errorlevel 1 goto script_failed_so_exit_with_non_zero_val 2>nul
104 goto endofperl
105 \@rem ';
106EOT
107
108 $head =~ s/^\s+//gm;
109 my $headlines = 2 + ($head =~ tr/\n/\n/);
110 my $tail = "\n__END__\n:endofperl\n";
111
112 my $linedone = 0;
113 my $taildone = 0;
114 my $linenum = 0;
115 my $skiplines = 0;
116
117 my $start = $Config{startperl};
118 $start = "#!perl" unless $start =~ /^#!.*perl/;
119
120 my $in = IO::File->new("< $opts{in}") or die "Can't open $opts{in}: $!";
121 my @file = <$in>;
122 $in->close;
123
124 foreach my $line ( @file ) {
125 $linenum++;
126 if ( $line =~ /^:endofperl\b/ ) {
127 if (!exists $opts{update}) {
128 warn "$opts{in} has already been converted to a batch file!\n";
129 return;
130 }
131 $taildone++;
132 }
133 if ( not $linedone and $line =~ /^#!.*perl/ ) {
134 if (exists $opts{update}) {
135 $skiplines = $linenum - 1;
136 $line .= "#line ".(1+$headlines)."\n";
137 } else {
138 $line .= "#line ".($linenum+$headlines)."\n";
139 }
140 $linedone++;
141 }
142 if ( $line =~ /^#\s*line\b/ and $linenum == 2 + $skiplines ) {
143 $line = "";
144 }
145 }
146
147 my $out = IO::File->new("> $opts{out}") or die "Can't open $opts{out}: $!";
148 print $out $head;
149 print $out $start, ( $opts{usewarnings} ? " -w" : "" ),
150 "\n#line ", ($headlines+1), "\n" unless $linedone;
151 print $out @file[$skiplines..$#file];
152 print $out $tail unless $taildone;
153 $out->close;
154
155 return $opts{out};
156}
157
158
159sub split_like_shell {
160 # As it turns out, Windows command-parsing is very different from
161 # Unix command-parsing. Double-quotes mean different things,
162 # backslashes don't necessarily mean escapes, and so on. So we
163 # can't use Text::ParseWords::shellwords() to break a command string
164 # into words. The algorithm below was bashed out by Randy and Ken
165 # (mostly Randy), and there are a lot of regression tests, so we
166 # should feel free to adjust if desired.
167
168 (my $self, local $_) = @_;
169
170 return @$_ if defined() && UNIVERSAL::isa($_, 'ARRAY');
171
172 my @argv;
173 return @argv unless defined() && length();
174
175 my $arg = '';
176 my( $i, $quote_mode ) = ( 0, 0 );
177
178 while ( $i < length() ) {
179
180 my $ch = substr( $_, $i , 1 );
181 my $next_ch = substr( $_, $i+1, 1 );
182
183 if ( $ch eq '\\' && $next_ch eq '"' ) {
184 $arg .= '"';
185 $i++;
186 } elsif ( $ch eq '\\' && $next_ch eq '\\' ) {
187 $arg .= '\\';
188 $i++;
189 } elsif ( $ch eq '"' && $next_ch eq '"' && $quote_mode ) {
190 $quote_mode = !$quote_mode;
191 $arg .= '"';
192 $i++;
193 } elsif ( $ch eq '"' && $next_ch eq '"' && !$quote_mode &&
194 ( $i + 2 == length() ||
195 substr( $_, $i + 2, 1 ) eq ' ' )
196 ) { # for cases like: a"" => [ 'a' ]
197 push( @argv, $arg );
198 $arg = '';
199 $i += 2;
200 } elsif ( $ch eq '"' ) {
201 $quote_mode = !$quote_mode;
202 } elsif ( $ch eq ' ' && !$quote_mode ) {
203 push( @argv, $arg ) if $arg;
204 $arg = '';
205 ++$i while substr( $_, $i + 1, 1 ) eq ' ';
206 } else {
207 $arg .= $ch;
208 }
209
210 $i++;
211 }
212
213 push( @argv, $arg ) if defined( $arg ) && length( $arg );
214 return @argv;
215}
216
2171;
218
219__END__
220
221=head1 NAME
222
223Module::Build::Platform::Windows - Builder class for Windows platforms
224
225=head1 DESCRIPTION
226
227The sole purpose of this module is to inherit from
228C<Module::Build::Base> and override a few methods. Please see
229L<Module::Build> for the docs.
230
231=head1 AUTHOR
232
233Ken Williams <ken@cpan.org>, Randy W. Sims <RandyS@ThePierianSpring.org>
234
235=head1 SEE ALSO
236
237perl(1), Module::Build(3)
238
239=cut