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1 | package App::FatPacker; |
2 | |
3 | use strict; |
4 | use warnings FATAL => 'all'; |
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5 | use 5.008001; |
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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); |
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14 | use B qw(perlstring); |
15 | |
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16 | our $VERSION = '0.009006'; # 0.9.6 |
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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; |
22 | my ( $args, $options ) = @_; |
23 | |
24 | local *ARGV = [ @{$args} ]; |
25 | $self->{'option_parser'}->getoptions( @{$options} ); |
26 | |
27 | return [ @ARGV ]; |
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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 | |
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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 | |
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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 | |
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 |
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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 | $file ||= 'fatpacker.trace'; |
81 | if (!$to_stderr and -e $file) { |
82 | unlink $file or die "Couldn't remove old trace file: $!"; |
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83 | } |
84 | my $arg = do { |
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85 | if ($to_stderr) { |
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86 | "=>&STDERR" |
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87 | } elsif ($file) { |
88 | "=>>${file}" |
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89 | } |
90 | }; |
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91 | |
92 | if(@additional_use) { |
93 | $arg .= "," . join ",", @additional_use; |
94 | } |
95 | |
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96 | { |
97 | local $ENV{PERL5OPT} = '-MApp::FatPacker::Trace'.$arg; |
98 | system $^X, @$args; |
99 | } |
100 | } |
101 | |
102 | sub script_command_packlists_for { |
103 | my ($self, $args) = @_; |
104 | foreach my $pl ($self->packlists_containing($args)) { |
105 | print "${pl}\n"; |
106 | } |
107 | } |
108 | |
109 | sub packlists_containing { |
110 | my ($self, $targets) = @_; |
111 | my @targets = @$targets; |
112 | require $_ for @targets; |
113 | my @search = grep -d $_, map catdir($_, 'auto'), @INC; |
114 | my %pack_rev; |
115 | my $cwd = cwd; |
116 | find(sub { |
117 | return unless $_ eq '.packlist' && -f $_; |
118 | $pack_rev{$_} = $File::Find::name for lines_of $File::Find::name; |
119 | }, @search); |
120 | chdir($cwd) or die "Couldn't chdir back to ${cwd} after find: $!"; |
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121 | my %found; @found{map +($pack_rev{$INC{$_}}||()), @targets} = (); |
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122 | sort keys %found; |
123 | } |
124 | |
125 | sub script_command_tree { |
126 | my ($self, $args) = @_; |
127 | my $base = catdir(cwd,'fatlib'); |
128 | $self->packlists_to_tree($base, $args); |
129 | } |
130 | |
131 | sub packlists_to_tree { |
132 | my ($self, $where, $packlists) = @_; |
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133 | rmtree $where; |
134 | mkpath $where; |
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135 | foreach my $pl (@$packlists) { |
136 | my ($vol, $dirs, $file) = splitpath $pl; |
137 | my @dir_parts = splitdir $dirs; |
138 | my $pack_base; |
139 | PART: foreach my $p (0 .. $#dir_parts) { |
140 | if ($dir_parts[$p] eq 'auto') { |
141 | # $p-2 since it's <wanted path>/$Config{archname}/auto |
142 | $pack_base = catpath $vol, catdir @dir_parts[0..$p-2]; |
143 | last PART; |
144 | } |
145 | } |
146 | die "Couldn't figure out base path of packlist ${pl}" unless $pack_base; |
147 | foreach my $source (lines_of $pl) { |
148 | # there is presumably a better way to do "is this under this base?" |
149 | # but if so, it's not obvious to me in File::Spec |
150 | next unless substr($source,0,length $pack_base) eq $pack_base; |
151 | my $target = rel2abs( abs2rel($source, $pack_base), $where ); |
152 | my $target_dir = catpath((splitpath $target)[0,1]); |
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153 | mkpath $target_dir; |
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154 | copy $source => $target; |
155 | } |
156 | } |
157 | } |
158 | |
159 | sub script_command_file { |
160 | my ($self, $args) = @_; |
161 | my $file = shift @$args; |
162 | my $cwd = cwd; |
163 | my @dirs = map rel2abs($_, $cwd), ('lib','fatlib'); |
164 | my %files; |
165 | foreach my $dir (@dirs) { |
166 | find(sub { |
167 | return unless -f $_; |
168 | !/\.pm$/ 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; |
169 | $files{abs2rel($File::Find::name,$dir)} = do { |
170 | local (@ARGV, $/) = ($File::Find::name); <> |
171 | }; |
172 | }, $dir); |
173 | } |
174 | my $start = stripspace <<' END_START'; |
175 | # This chunk of stuff was generated by App::FatPacker. To find the original |
176 | # file's code, look for the end of this BEGIN block or the string 'FATPACK' |
177 | BEGIN { |
178 | my %fatpacked; |
179 | END_START |
180 | my $end = stripspace <<' END_END'; |
181 | s/^ //mg for values %fatpacked; |
182 | |
183 | unshift @INC, sub { |
184 | if (my $fat = $fatpacked{$_[1]}) { |
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185 | open my $fh, '<', \$fat |
186 | or die "FatPacker error loading $_[1] (could be a perl installation issue?)"; |
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187 | return $fh; |
188 | } |
189 | return |
190 | }; |
191 | |
192 | } # END OF FATPACK CODE |
193 | END_END |
194 | my @segments = map { |
195 | (my $stub = $_) =~ s/\.pm$//; |
196 | my $name = uc join '_', split '/', $stub; |
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197 | my $data = $files{$_}; $data =~ s/^/ /mg; $data =~ s/(?<!\n)\z/\n/; |
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198 | '$fatpacked{'.perlstring($_).qq!} = <<'${name}';\n! |
199 | .qq!${data}${name}\n!; |
200 | } sort keys %files; |
201 | print join "\n", $start, @segments, $end; |
202 | } |
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203 | |
204 | =head1 NAME |
205 | |
206 | App::FatPacker - pack your dependencies onto your script file |
207 | |
208 | =head1 SYNOPSIS |
209 | |
210 | $ fatpack trace myscript.pl |
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211 | $ fatpack packlists-for `cat fatpacker.trace` >packlists |
212 | $ fatpack tree `cat packlists` |
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213 | $ (fatpack file; cat myscript.pl) >myscript.packed.pl |
214 | |
215 | See the documentation for the L<fatpack> script itself for more information. |
216 | |
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217 | The programmatic API for this code is not yet fully decided, hence the 0.9 |
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218 | release version. Expect that to be cleaned up for 1.0. |
219 | |
220 | =head1 SUPPORT |
221 | |
222 | Your current best avenue is to come annoy annoy mst on #toolchain on |
223 | irc.perl.org. There should be a non-IRC means of support by 1.0. |
224 | |
225 | =head1 AUTHOR |
226 | |
227 | Matt S. Trout (mst) <mst@shadowcat.co.uk> |
228 | |
229 | =head2 CONTRIBUTORS |
230 | |
231 | None as yet, though I probably owe lots of people thanks for ideas. Yet |
232 | another doc nit to fix. |
233 | |
234 | =head1 COPYRIGHT |
235 | |
236 | Copyright (c) 2010 the App::FatPacker L</AUTHOR> and L</CONTRIBUTORS> |
237 | as listed above. |
238 | |
239 | =head1 LICENSE |
240 | |
241 | This library is free software and may be distributed under the same terms |
242 | as perl itself. |
243 | |
244 | =cut |
245 | |
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246 | 1; |
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247 | |