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 = '0.009018'; # 0.009.017
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 $ENV{PERL5OPT} = '-MApp::FatPacker::Trace='.$trace_opts;
122 my @args = @{$opts{args}||[]};
125 # user specified output target, JFDI
129 # no output target specified, slurp
130 open my $out_fh, "$^X @args |";
131 return do { local $/; <$out_fh> };
135 sub script_command_packlists_for {
136 my ($self, $args) = @_;
137 foreach my $pl ($self->packlists_containing($args)) {
142 sub packlists_containing {
143 my ($self, $targets) = @_;
144 my @targets = @$targets;
145 foreach my $t (@targets) {
148 my @search = grep -d $_, map catdir($_, 'auto'), @INC;
153 return unless /[\\\/]\.packlist$/ && -f $_;
154 $pack_rev{$_} = $File::Find::name for lines_of $File::Find::name;
157 my %found; @found{map +($pack_rev{Cwd::abs_path($INC{$_})}||()), @targets} = ();
161 sub script_command_tree {
162 my ($self, $args) = @_;
163 my $base = catdir(cwd,'fatlib');
164 $self->packlists_to_tree($base, $args);
167 sub packlists_to_tree {
168 my ($self, $where, $packlists) = @_;
171 foreach my $pl (@$packlists) {
172 my ($vol, $dirs, $file) = splitpath $pl;
173 my @dir_parts = splitdir $dirs;
175 PART: foreach my $p (0 .. $#dir_parts) {
176 if ($dir_parts[$p] eq 'auto') {
177 # $p-2 since it's <wanted path>/$Config{archname}/auto
178 $pack_base = catpath $vol, catdir @dir_parts[0..$p-2];
182 die "Couldn't figure out base path of packlist ${pl}" unless $pack_base;
183 foreach my $source (lines_of $pl) {
184 # there is presumably a better way to do "is this under this base?"
185 # but if so, it's not obvious to me in File::Spec
186 next unless substr($source,0,length $pack_base) eq $pack_base;
187 my $target = rel2abs( abs2rel($source, $pack_base), $where );
188 my $target_dir = catpath((splitpath $target)[0,1]);
190 copy $source => $target;
195 sub script_command_file {
196 my ($self, $args) = @_;
197 my $file = shift @$args;
198 print $self->fatpack_file($file);
202 my ($self, $file) = @_;
206 if ( defined $file and -r $file ) {
207 ($shebang, $script) = $self->load_main_script($file);
210 my @dirs = $self->collect_dirs();
212 $self->collect_files($_, \%files) for @dirs;
214 return join "\n", $shebang, $self->fatpack_code(\%files), $script;
217 # This method can be overload in sub classes
218 # For example to skip POD
220 my ($self, $file) = @_;
222 local (@ARGV, $/) = ($file);
232 return grep -d, map rel2abs($_, $cwd), ('lib','fatlib');
236 my ($self, $dir, $files) = @_;
239 !/\.pm$/ 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;
240 $files->{File::Spec::Unix->abs2rel($File::Find::name,$dir)} =
241 $self->load_file($File::Find::name);
245 sub load_main_script {
246 my ($self, $file) = @_;
247 open my $fh, "<", $file or die("Can't read $file: $!");
249 my $script = join "", <$fh>;
251 unless ( index($shebang, '#!') == 0 ) {
252 $script = $shebang . $script;
255 return ($shebang, $script);
259 return stripspace <<' END_START';
260 # This chunk of stuff was generated by App::FatPacker. To find the original
261 # file's code, look for the end of this BEGIN block or the string 'FATPACK'
268 return stripspace <<' END_END';
269 s/^ //mg for values %fatpacked;
274 if (my $fat = $fatpacked{$_[1]}) {
276 return 0 unless length $fat;
277 $fat =~ s/^([^\n]*\n?)//;
288 my $class = "${\\%fatpacked}";
289 unshift @INC, bless \%fatpacked, $class;
290 *{"${class}::files"} = sub { keys %{$_[0]} };
291 *{"${class}::INC"} = sub {
292 if (my $fat = $_[0]{$_[1]}) {
293 open my $fh, '<', \$fat
294 or die "FatPacker error loading $_[1] (could be a perl installation issue?)";
302 } # END OF FATPACK CODE
307 my ($self, $files) = @_;
309 (my $stub = $_) =~ s/\.pm$//;
310 my $name = uc join '_', split '/', $stub;
311 my $data = $files->{$_}; $data =~ s/^/ /mg; $data =~ s/(?<!\n)\z/\n/;
312 '$fatpacked{'.perlstring($_).qq!} = '#line '.(1+__LINE__).' "'.__FILE__."\\"\\n".<<'${name}';\n!
313 .qq!${data}${name}\n!;
316 return join "\n", $self->fatpack_start, @segments, $self->fatpack_end;
323 App::FatPacker - pack your dependencies onto your script file
327 $ fatpack pack myscript.pl >myscript.packed.pl
329 Or, with more step-by-step control:
331 $ fatpack trace myscript.pl
332 $ fatpack packlists-for `cat fatpacker.trace` >packlists
333 $ fatpack tree `cat packlists`
334 $ fatpack file myscript.pl >myscript.packed.pl
336 See the documentation for the L<fatpack> script itself for more information.
338 The programmatic API for this code is not yet fully decided, hence the 0.9
339 release version. Expect that to be cleaned up for 1.0.
343 L<article for Perl Advent 2012|http://www.perladvent.org/2012/2012-12-14.html>
347 Your current best avenue is to come annoy annoy mst on #toolchain on
348 irc.perl.org. There should be a non-IRC means of support by 1.0.
352 Matt S. Trout (mst) <mst@shadowcat.co.uk>
356 miyagawa - Tatsuhiko Miyagawa (cpan:MIYAGAWA) <miyagawa@bulknews.net>
358 tokuhirom - MATSUNO★Tokuhiro (cpan:TOKUHIROM) <tokuhirom@gmail.com>
360 dg - David Leadbeater (cpan:DGL) <dgl@dgl.cx>
362 gugod - 劉康民 (cpan:GUGOD) <gugod@cpan.org>
364 t0m - Tomas Doran (cpan:BOBTFISH) <bobtfish@bobtfish.net>
366 sawyer - Sawyer X (cpan:XSAWYERX) <xsawyerx@cpan.org>
368 ether - Karen Etheridge (cpan:ETHER) <ether@cpan.org>
370 Mithaldu - Christian Walde (cpan:MITHALDU) <walde.christian@googlemail.com>
372 dolmen - Olivier Mengué (cpan:DOLMEN) <dolmen@cpan.org>
374 Many more people are probably owed thanks for ideas. Yet
375 another doc nit to fix.
379 Copyright (c) 2010 the App::FatPacker L</AUTHOR> and L</CONTRIBUTORS>
384 This library is free software and may be distributed under the same terms