1 package App::FatPacker;
4 use warnings FATAL => 'all';
8 use File::Find qw(find);
9 use File::Spec::Functions qw(
10 catdir splitpath splitdir catpath rel2abs abs2rel
13 use File::Copy qw(copy);
14 use File::Path qw(mkpath rmtree);
17 our $VERSION = '0.010004'; # 0.10.4
19 $VERSION = eval $VERSION;
23 my ($args, $options) = @_;
25 local *ARGV = [ @{$args} ];
26 $self->{option_parser}->getoptions(@$options);
32 map +(chomp,$_)[1], do { local @ARGV = ($_[0]); <> };
37 $text =~ /^(\s+)/ && $text =~ s/^$1//mg;
42 $_[1] && $_[1] eq '-run_script'
43 and return shift->new->run_script;
48 option_parser => Getopt::Long::Parser->new(
49 config => [ qw(require_order pass_through bundling no_auto_abbrev) ]
55 my ($self, $args) = @_;
56 my @args = $args ? @$args : @ARGV;
57 (my $cmd = shift @args || 'help') =~ s/-/_/g;
59 if (my $meth = $self->can("script_command_${cmd}")) {
62 die "No such command ${cmd}";
66 sub script_command_help {
67 print "Try `perldoc fatpack` for how to use me\n";
70 sub script_command_pack {
71 my ($self, $args) = @_;
73 my @modules = split /\r?\n/, $self->trace(args => $args);
74 my @packlists = $self->packlists_containing(\@modules);
76 my $base = catdir(cwd, 'fatlib');
77 $self->packlists_to_tree($base, \@packlists);
79 my $file = shift @$args;
80 print $self->fatpack_file($file);
83 sub script_command_trace {
84 my ($self, $args) = @_;
86 $args = $self->call_parser($args => [
88 'to-stderr' => \my $to_stderr,
89 'use=s' => \my @additional_use
92 die "Can't use to and to-stderr on same call" if $file && $to_stderr;
94 $file ||= 'fatpacker.trace';
96 if (!$to_stderr and -e $file) {
97 unlink $file or die "Couldn't remove old trace file: $!";
108 use => \@additional_use,
115 my ($self, %opts) = @_;
117 my $output = $opts{output};
118 my $trace_opts = join ',', $output||'>&STDOUT', @{$opts{use}||[]};
120 local $ENV{PERL5OPT} = join ' ',
121 ($ENV{PERL5OPT}||()), '-MApp::FatPacker::Trace='.$trace_opts;
123 my @args = @{$opts{args}||[]};
126 # user specified output target, JFDI
130 # no output target specified, slurp
131 open my $out_fh, "$^X @args |";
132 return do { local $/; <$out_fh> };
136 sub script_command_packlists_for {
137 my ($self, $args) = @_;
138 foreach my $pl ($self->packlists_containing($args)) {
143 sub packlists_containing {
144 my ($self, $targets) = @_;
145 my @targets = @$targets;
147 local @INC = ('lib', @INC);
148 foreach my $t (@targets) {
152 my @search = grep -d $_, map catdir($_, 'auto'), @INC;
157 return unless /[\\\/]\.packlist$/ && -f $_;
158 $pack_rev{$_} = $File::Find::name for lines_of $File::Find::name;
161 my %found; @found{map +($pack_rev{Cwd::abs_path($INC{$_})}||()), @targets} = ();
165 sub script_command_tree {
166 my ($self, $args) = @_;
167 my $base = catdir(cwd,'fatlib');
168 $self->packlists_to_tree($base, $args);
171 sub packlists_to_tree {
172 my ($self, $where, $packlists) = @_;
175 foreach my $pl (@$packlists) {
176 my ($vol, $dirs, $file) = splitpath $pl;
177 my @dir_parts = splitdir $dirs;
179 PART: foreach my $p (0 .. $#dir_parts) {
180 if ($dir_parts[$p] eq 'auto') {
181 # $p-2 since it's <wanted path>/$Config{archname}/auto
182 $pack_base = catpath $vol, catdir @dir_parts[0..$p-2];
186 die "Couldn't figure out base path of packlist ${pl}" unless $pack_base;
187 foreach my $source (lines_of $pl) {
188 # there is presumably a better way to do "is this under this base?"
189 # but if so, it's not obvious to me in File::Spec
190 next unless substr($source,0,length $pack_base) eq $pack_base;
191 my $target = rel2abs( abs2rel($source, $pack_base), $where );
192 my $target_dir = catpath((splitpath $target)[0,1]);
194 copy $source => $target;
199 sub script_command_file {
200 my ($self, $args) = @_;
201 my $file = shift @$args;
202 print $self->fatpack_file($file);
206 my ($self, $file) = @_;
210 if ( defined $file and -r $file ) {
211 ($shebang, $script) = $self->load_main_script($file);
214 my @dirs = $self->collect_dirs();
216 $self->collect_files($_, \%files) for @dirs;
218 return join "\n", $shebang, $self->fatpack_code(\%files), $script;
221 # This method can be overload in sub classes
222 # For example to skip POD
224 my ($self, $file) = @_;
226 local (@ARGV, $/) = ($file);
236 return grep -d, map rel2abs($_, $cwd), ('lib','fatlib');
240 my ($self, $dir, $files) = @_;
243 !/\.pm$/ and warn "File ${File::Find::name} isn't a .pm file - can't pack this -- if you hoped we were going to, things may not be what you expected later\n" and return;
244 $files->{File::Spec::Unix->abs2rel($File::Find::name,$dir)} =
245 $self->load_file($File::Find::name);
249 sub load_main_script {
250 my ($self, $file) = @_;
251 open my $fh, "<", $file or die("Can't read $file: $!");
253 my $script = join "", <$fh>;
255 unless ( index($shebang, '#!') == 0 ) {
256 $script = $shebang . $script;
259 return ($shebang, $script);
263 return stripspace <<' END_START';
264 # This chunk of stuff was generated by App::FatPacker. To find the original
265 # file's code, look for the end of this BEGIN block or the string 'FATPACK'
272 return stripspace <<' END_END';
273 s/^ //mg for values %fatpacked;
275 my $class = 'FatPacked::'.(0+\%fatpacked);
277 *{"${class}::files"} = sub { keys %{$_[0]} };
280 *{"${class}::INC"} = sub {
281 if (my $fat = $_[0]{$_[1]}) {
283 my $last = length $fat;
285 return 0 if $pos == $last;
286 my $next = (1 + index $fat, "\n", $pos) || $last;
287 $_ .= substr $fat, $pos, $next - $pos;
296 *{"${class}::INC"} = sub {
297 if (my $fat = $_[0]{$_[1]}) {
298 open my $fh, '<', \$fat
299 or die "FatPacker error loading $_[1] (could be a perl installation issue?)";
306 unshift @INC, bless \%fatpacked, $class;
307 } # END OF FATPACK CODE
312 my ($self, $files) = @_;
314 (my $stub = $_) =~ s/\.pm$//;
315 my $name = uc join '_', split '/', $stub;
316 my $data = $files->{$_}; $data =~ s/^/ /mg; $data =~ s/(?<!\n)\z/\n/;
317 '$fatpacked{'.perlstring($_).qq!} = '#line '.(1+__LINE__).' "'.__FILE__."\\"\\n".<<'${name}';\n!
318 .qq!${data}${name}\n!;
321 return join "\n", $self->fatpack_start, @segments, $self->fatpack_end;
328 App::FatPacker - pack your dependencies onto your script file
332 $ fatpack pack myscript.pl >myscript.packed.pl
334 Or, with more step-by-step control:
336 $ fatpack trace myscript.pl
337 $ fatpack packlists-for `cat fatpacker.trace` >packlists
338 $ fatpack tree `cat packlists`
339 $ fatpack file myscript.pl >myscript.packed.pl
341 See the documentation for the L<fatpack> script itself for more information.
343 The programmatic API for this code is not yet fully decided, hence the 0.x
344 release version. Expect that to be cleaned up for 1.0.
348 L<article for Perl Advent 2012|http://www.perladvent.org/2012/2012-12-14.html>
352 Your current best avenue is to come annoy mst on #toolchain on
353 irc.perl.org. There should be a non-IRC means of support by 1.0.
357 Matt S. Trout (mst) <mst@shadowcat.co.uk>
361 miyagawa - Tatsuhiko Miyagawa (cpan:MIYAGAWA) <miyagawa@bulknews.net>
363 tokuhirom - MATSUNO★Tokuhiro (cpan:TOKUHIROM) <tokuhirom@gmail.com>
365 dg - David Leadbeater (cpan:DGL) <dgl@dgl.cx>
367 gugod - 劉康民 (cpan:GUGOD) <gugod@cpan.org>
369 t0m - Tomas Doran (cpan:BOBTFISH) <bobtfish@bobtfish.net>
371 sawyer - Sawyer X (cpan:XSAWYERX) <xsawyerx@cpan.org>
373 ether - Karen Etheridge (cpan:ETHER) <ether@cpan.org>
375 Mithaldu - Christian Walde (cpan:MITHALDU) <walde.christian@googlemail.com>
377 dolmen - Olivier Mengué (cpan:DOLMEN) <dolmen@cpan.org>
379 djerius - Diab Jerius (cpan:DJERIUS) <djerius@cpan.org>
381 haarg - Graham Knop (cpan:HAARG> <haarg@haarg.org>
383 Many more people are probably owed thanks for ideas. Yet
384 another doc nit to fix.
388 Copyright (c) 2010 the App::FatPacker L</AUTHOR> and L</CONTRIBUTORS>
393 This library is free software and may be distributed under the same terms