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48af1939 |
1 | package App::FatPacker; |
2 | |
3 | use strict; |
4 | use warnings FATAL => 'all'; |
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5 | use 5.008001; |
48af1939 |
6 | use Getopt::Long; |
7 | use Cwd qw(cwd); |
8 | use File::Find qw(find); |
9 | use File::Spec::Functions qw( |
10 | catdir splitpath splitdir catpath rel2abs abs2rel |
11 | ); |
12 | use File::Copy qw(copy); |
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13 | use File::Path qw(mkpath rmtree); |
48af1939 |
14 | use B qw(perlstring); |
15 | |
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16 | our $VERSION = '0.009007'; # 0.9.7 |
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17 | |
18 | $VERSION = eval $VERSION; |
19 | |
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20 | sub call_parser { |
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21 | my $self = shift; |
69667cc8 |
22 | my ($args, $options) = @_; |
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23 | |
24 | local *ARGV = [ @{$args} ]; |
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25 | $self->{option_parser}->getoptions(@$options); |
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26 | |
27 | return [ @ARGV ]; |
48af1939 |
28 | } |
29 | |
30 | sub lines_of { |
31 | map +(chomp,$_)[1], do { local @ARGV = ($_[0]); <> }; |
32 | } |
33 | |
34 | sub stripspace { |
35 | my ($text) = @_; |
36 | $text =~ /^(\s+)/ && $text =~ s/^$1//mg; |
37 | $text; |
38 | } |
39 | |
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40 | sub import { |
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41 | $_[1] && $_[1] eq '-run_script' |
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42 | and return shift->new->run_script; |
43 | } |
44 | |
24d68aa2 |
45 | sub new { |
46 | bless { |
47 | option_parser => Getopt::Long::Parser->new( |
48 | config => [ qw(require_order pass_through bundling no_auto_abbrev) ] |
49 | ), |
50 | }, $_[0]; |
51 | } |
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52 | |
53 | sub run_script { |
54 | my ($self, $args) = @_; |
55 | my @args = $args ? @$args : @ARGV; |
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56 | (my $cmd = shift @args || 'help') =~ s/-/_/g; |
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57 | |
48af1939 |
58 | if (my $meth = $self->can("script_command_${cmd}")) { |
59 | $self->$meth(\@args); |
60 | } else { |
61 | die "No such command ${cmd}"; |
62 | } |
63 | } |
64 | |
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65 | sub script_command_help { |
66 | print "Try `perldoc fatpack` for how to use me\n"; |
67 | } |
68 | |
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69 | sub script_command_trace { |
70 | my ($self, $args) = @_; |
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71 | |
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72 | $args = $self->call_parser($args => [ |
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73 | 'to=s' => \my $file, |
74 | 'to-stderr' => \my $to_stderr, |
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75 | 'use=s' => \my @additional_use |
69667cc8 |
76 | ]); |
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77 | |
78 | die "Can't use to and to-stderr on same call" if $file && $to_stderr; |
79 | |
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80 | $file ||= 'fatpacker.trace'; |
69667cc8 |
81 | |
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82 | if (!$to_stderr and -e $file) { |
83 | unlink $file or die "Couldn't remove old trace file: $!"; |
48af1939 |
84 | } |
85 | my $arg = do { |
3fdf85ca |
86 | if ($to_stderr) { |
276a30c9 |
87 | "=&STDERR" |
3fdf85ca |
88 | } elsif ($file) { |
276a30c9 |
89 | ">>${file}" |
48af1939 |
90 | } |
91 | }; |
3fdf85ca |
92 | |
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93 | $self->trace( |
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94 | use => \@additional_use, |
95 | args => $args, |
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96 | output => $arg, |
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97 | ); |
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98 | } |
99 | |
100 | sub trace { |
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101 | my ($self, %opts) = @_; |
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102 | |
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103 | my $capture; |
104 | |
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105 | my $output = $opts{output} || do { |
106 | $capture++; '>&STDOUT' |
107 | }; |
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108 | |
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109 | my $trace_opts = join ',', $output||'>&STDOUT', @{$opts{use}||[]}; |
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110 | |
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111 | local $ENV{PERL5OPT} = '-MApp::FatPacker::Trace='.$trace_opts; |
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112 | |
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113 | my @args = @{$opts{args}||[]}; |
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114 | |
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115 | if ($output) { |
116 | # user specified output target, JFDI |
117 | system $^X, @args; |
118 | return; |
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119 | } else { |
69667cc8 |
120 | # no output target specified, slurp |
121 | open my $out_fh, '-|', $^X, @args; |
122 | return do { local $/; <$out_fh> }; |
123 | } |
48af1939 |
124 | } |
125 | |
126 | sub script_command_packlists_for { |
127 | my ($self, $args) = @_; |
128 | foreach my $pl ($self->packlists_containing($args)) { |
129 | print "${pl}\n"; |
130 | } |
131 | } |
132 | |
133 | sub packlists_containing { |
134 | my ($self, $targets) = @_; |
135 | my @targets = @$targets; |
a976705b |
136 | foreach my $t (@targets) { |
137 | require $t; |
138 | } |
48af1939 |
139 | my @search = grep -d $_, map catdir($_, 'auto'), @INC; |
140 | my %pack_rev; |
141 | my $cwd = cwd; |
142 | find(sub { |
143 | return unless $_ eq '.packlist' && -f $_; |
144 | $pack_rev{$_} = $File::Find::name for lines_of $File::Find::name; |
145 | }, @search); |
146 | chdir($cwd) or die "Couldn't chdir back to ${cwd} after find: $!"; |
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147 | my %found; @found{map +($pack_rev{$INC{$_}}||()), @targets} = (); |
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148 | sort keys %found; |
149 | } |
150 | |
151 | sub script_command_tree { |
152 | my ($self, $args) = @_; |
153 | my $base = catdir(cwd,'fatlib'); |
154 | $self->packlists_to_tree($base, $args); |
155 | } |
156 | |
157 | sub packlists_to_tree { |
158 | my ($self, $where, $packlists) = @_; |
4d5603b7 |
159 | rmtree $where; |
160 | mkpath $where; |
48af1939 |
161 | foreach my $pl (@$packlists) { |
162 | my ($vol, $dirs, $file) = splitpath $pl; |
163 | my @dir_parts = splitdir $dirs; |
164 | my $pack_base; |
165 | PART: foreach my $p (0 .. $#dir_parts) { |
166 | if ($dir_parts[$p] eq 'auto') { |
167 | # $p-2 since it's <wanted path>/$Config{archname}/auto |
168 | $pack_base = catpath $vol, catdir @dir_parts[0..$p-2]; |
169 | last PART; |
170 | } |
171 | } |
172 | die "Couldn't figure out base path of packlist ${pl}" unless $pack_base; |
173 | foreach my $source (lines_of $pl) { |
174 | # there is presumably a better way to do "is this under this base?" |
175 | # but if so, it's not obvious to me in File::Spec |
176 | next unless substr($source,0,length $pack_base) eq $pack_base; |
177 | my $target = rel2abs( abs2rel($source, $pack_base), $where ); |
178 | my $target_dir = catpath((splitpath $target)[0,1]); |
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179 | mkpath $target_dir; |
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180 | copy $source => $target; |
181 | } |
182 | } |
183 | } |
184 | |
185 | sub script_command_file { |
186 | my ($self, $args) = @_; |
187 | my $file = shift @$args; |
188 | my $cwd = cwd; |
189 | my @dirs = map rel2abs($_, $cwd), ('lib','fatlib'); |
190 | my %files; |
191 | foreach my $dir (@dirs) { |
192 | find(sub { |
193 | return unless -f $_; |
194 | !/\.pm$/ and warn "File ${File::Find::name} isn't a .pm file - can't pack this and if you hoped we were going to things may not be what you expected later\n" and return; |
195 | $files{abs2rel($File::Find::name,$dir)} = do { |
196 | local (@ARGV, $/) = ($File::Find::name); <> |
197 | }; |
198 | }, $dir); |
199 | } |
200 | my $start = stripspace <<' END_START'; |
201 | # This chunk of stuff was generated by App::FatPacker. To find the original |
202 | # file's code, look for the end of this BEGIN block or the string 'FATPACK' |
203 | BEGIN { |
204 | my %fatpacked; |
205 | END_START |
206 | my $end = stripspace <<' END_END'; |
207 | s/^ //mg for values %fatpacked; |
208 | |
209 | unshift @INC, sub { |
210 | if (my $fat = $fatpacked{$_[1]}) { |
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211 | open my $fh, '<', \$fat |
212 | or die "FatPacker error loading $_[1] (could be a perl installation issue?)"; |
48af1939 |
213 | return $fh; |
214 | } |
215 | return |
216 | }; |
217 | |
218 | } # END OF FATPACK CODE |
219 | END_END |
220 | my @segments = map { |
221 | (my $stub = $_) =~ s/\.pm$//; |
222 | my $name = uc join '_', split '/', $stub; |
cc5db92a |
223 | my $data = $files{$_}; $data =~ s/^/ /mg; $data =~ s/(?<!\n)\z/\n/; |
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224 | '$fatpacked{'.perlstring($_).qq!} = <<'${name}';\n! |
225 | .qq!${data}${name}\n!; |
226 | } sort keys %files; |
227 | print join "\n", $start, @segments, $end; |
228 | } |
f5a54fa1 |
229 | |
230 | =head1 NAME |
231 | |
232 | App::FatPacker - pack your dependencies onto your script file |
233 | |
234 | =head1 SYNOPSIS |
235 | |
236 | $ fatpack trace myscript.pl |
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237 | $ fatpack packlists-for `cat fatpacker.trace` >packlists |
238 | $ fatpack tree `cat packlists` |
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239 | $ (fatpack file; cat myscript.pl) >myscript.packed.pl |
240 | |
241 | See the documentation for the L<fatpack> script itself for more information. |
242 | |
3fdf85ca |
243 | The programmatic API for this code is not yet fully decided, hence the 0.9 |
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244 | release version. Expect that to be cleaned up for 1.0. |
245 | |
246 | =head1 SUPPORT |
247 | |
248 | Your current best avenue is to come annoy annoy mst on #toolchain on |
249 | irc.perl.org. There should be a non-IRC means of support by 1.0. |
250 | |
251 | =head1 AUTHOR |
252 | |
253 | Matt S. Trout (mst) <mst@shadowcat.co.uk> |
254 | |
255 | =head2 CONTRIBUTORS |
256 | |
257 | None as yet, though I probably owe lots of people thanks for ideas. Yet |
258 | another doc nit to fix. |
259 | |
260 | =head1 COPYRIGHT |
261 | |
262 | Copyright (c) 2010 the App::FatPacker L</AUTHOR> and L</CONTRIBUTORS> |
263 | as listed above. |
264 | |
265 | =head1 LICENSE |
266 | |
267 | This library is free software and may be distributed under the same terms |
268 | as perl itself. |
269 | |
270 | =cut |
271 | |
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272 | 1; |
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273 | |