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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); |
13 | use File::Path qw(make_path remove_tree); |
14 | use B qw(perlstring); |
15 | |
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16 | our $VERSION = '0.009003'; # 0.9.3 |
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17 | |
18 | $VERSION = eval $VERSION; |
19 | |
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20 | my $option_parser = Getopt::Long::Parser->new( |
21 | config => [ qw(require_order pass_through bundling no_auto_abbrev) ] |
22 | ); |
23 | |
24 | sub call_parser { |
25 | local *ARGV = [ @{$_[0]} ]; |
26 | $option_parser->getoptions(@{$_[1]}); |
27 | [ @ARGV ]; |
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 { |
41 | $_[1] eq '-run_script' |
42 | and return shift->new->run_script; |
43 | } |
44 | |
45 | sub new { bless({}, $_[0]) } |
46 | |
47 | sub run_script { |
48 | my ($self, $args) = @_; |
49 | my @args = $args ? @$args : @ARGV; |
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50 | (my $cmd = shift @args || 'help') =~ s/-/_/g; |
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51 | if (my $meth = $self->can("script_command_${cmd}")) { |
52 | $self->$meth(\@args); |
53 | } else { |
54 | die "No such command ${cmd}"; |
55 | } |
56 | } |
57 | |
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58 | sub script_command_help { |
59 | print "Try `perldoc fatpack` for how to use me\n"; |
60 | } |
61 | |
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62 | sub script_command_trace { |
63 | my ($self, $args) = @_; |
64 | |
65 | $args = call_parser $args => [ |
66 | 'to=s' => \my $file, |
67 | 'to-stderr' => \my $to_stderr, |
68 | ]; |
69 | |
70 | die "Can't use to and to-stderr on same call" if $file && $to_stderr; |
71 | |
72 | (my $use_file = $file) ||= 'fatpacker.trace'; |
73 | if (!$to_stderr and -e $use_file) { |
74 | unlink $use_file or die "Couldn't remove old trace file: $!"; |
75 | } |
76 | my $arg = do { |
77 | if ($file) { |
78 | "=>>${file}" |
79 | } elsif ($to_stderr) { |
80 | "=>&STDERR" |
81 | } else { |
82 | "" |
83 | } |
84 | }; |
85 | { |
86 | local $ENV{PERL5OPT} = '-MApp::FatPacker::Trace'.$arg; |
87 | system $^X, @$args; |
88 | } |
89 | } |
90 | |
91 | sub script_command_packlists_for { |
92 | my ($self, $args) = @_; |
93 | foreach my $pl ($self->packlists_containing($args)) { |
94 | print "${pl}\n"; |
95 | } |
96 | } |
97 | |
98 | sub packlists_containing { |
99 | my ($self, $targets) = @_; |
100 | my @targets = @$targets; |
101 | require $_ for @targets; |
102 | my @search = grep -d $_, map catdir($_, 'auto'), @INC; |
103 | my %pack_rev; |
104 | my $cwd = cwd; |
105 | find(sub { |
106 | return unless $_ eq '.packlist' && -f $_; |
107 | $pack_rev{$_} = $File::Find::name for lines_of $File::Find::name; |
108 | }, @search); |
109 | chdir($cwd) or die "Couldn't chdir back to ${cwd} after find: $!"; |
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110 | my %found; @found{map +($pack_rev{$INC{$_}}||()), @targets} = (); |
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111 | sort keys %found; |
112 | } |
113 | |
114 | sub script_command_tree { |
115 | my ($self, $args) = @_; |
116 | my $base = catdir(cwd,'fatlib'); |
117 | $self->packlists_to_tree($base, $args); |
118 | } |
119 | |
120 | sub packlists_to_tree { |
121 | my ($self, $where, $packlists) = @_; |
122 | remove_tree $where; |
123 | make_path $where; |
124 | foreach my $pl (@$packlists) { |
125 | my ($vol, $dirs, $file) = splitpath $pl; |
126 | my @dir_parts = splitdir $dirs; |
127 | my $pack_base; |
128 | PART: foreach my $p (0 .. $#dir_parts) { |
129 | if ($dir_parts[$p] eq 'auto') { |
130 | # $p-2 since it's <wanted path>/$Config{archname}/auto |
131 | $pack_base = catpath $vol, catdir @dir_parts[0..$p-2]; |
132 | last PART; |
133 | } |
134 | } |
135 | die "Couldn't figure out base path of packlist ${pl}" unless $pack_base; |
136 | foreach my $source (lines_of $pl) { |
137 | # there is presumably a better way to do "is this under this base?" |
138 | # but if so, it's not obvious to me in File::Spec |
139 | next unless substr($source,0,length $pack_base) eq $pack_base; |
140 | my $target = rel2abs( abs2rel($source, $pack_base), $where ); |
141 | my $target_dir = catpath((splitpath $target)[0,1]); |
142 | make_path $target_dir; |
143 | copy $source => $target; |
144 | } |
145 | } |
146 | } |
147 | |
148 | sub script_command_file { |
149 | my ($self, $args) = @_; |
150 | my $file = shift @$args; |
151 | my $cwd = cwd; |
152 | my @dirs = map rel2abs($_, $cwd), ('lib','fatlib'); |
153 | my %files; |
154 | foreach my $dir (@dirs) { |
155 | find(sub { |
156 | return unless -f $_; |
157 | !/\.pm$/ 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; |
158 | $files{abs2rel($File::Find::name,$dir)} = do { |
159 | local (@ARGV, $/) = ($File::Find::name); <> |
160 | }; |
161 | }, $dir); |
162 | } |
163 | my $start = stripspace <<' END_START'; |
164 | # This chunk of stuff was generated by App::FatPacker. To find the original |
165 | # file's code, look for the end of this BEGIN block or the string 'FATPACK' |
166 | BEGIN { |
167 | my %fatpacked; |
168 | END_START |
169 | my $end = stripspace <<' END_END'; |
170 | s/^ //mg for values %fatpacked; |
171 | |
172 | unshift @INC, sub { |
173 | if (my $fat = $fatpacked{$_[1]}) { |
174 | open my $fh, '<', \$fat; |
175 | return $fh; |
176 | } |
177 | return |
178 | }; |
179 | |
180 | } # END OF FATPACK CODE |
181 | END_END |
182 | my @segments = map { |
183 | (my $stub = $_) =~ s/\.pm$//; |
184 | my $name = uc join '_', split '/', $stub; |
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185 | my $data = $files{$_}; $data =~ s/^/ /mg; $data =~ s/(?<!\n)\z/\n/; |
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186 | '$fatpacked{'.perlstring($_).qq!} = <<'${name}';\n! |
187 | .qq!${data}${name}\n!; |
188 | } sort keys %files; |
189 | print join "\n", $start, @segments, $end; |
190 | } |
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191 | |
192 | =head1 NAME |
193 | |
194 | App::FatPacker - pack your dependencies onto your script file |
195 | |
196 | =head1 SYNOPSIS |
197 | |
198 | $ fatpack trace myscript.pl |
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199 | $ fatpack packlists-for `cat fatpacker.trace` >packlists |
200 | $ fatpack tree `cat packlists` |
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201 | $ (fatpack file; cat myscript.pl) >myscript.packed.pl |
202 | |
203 | See the documentation for the L<fatpack> script itself for more information. |
204 | |
205 | The programmatic API for this code is not yet fully decided, hence the 0.9.1 |
206 | release version. Expect that to be cleaned up for 1.0. |
207 | |
208 | =head1 SUPPORT |
209 | |
210 | Your current best avenue is to come annoy annoy mst on #toolchain on |
211 | irc.perl.org. There should be a non-IRC means of support by 1.0. |
212 | |
213 | =head1 AUTHOR |
214 | |
215 | Matt S. Trout (mst) <mst@shadowcat.co.uk> |
216 | |
217 | =head2 CONTRIBUTORS |
218 | |
219 | None as yet, though I probably owe lots of people thanks for ideas. Yet |
220 | another doc nit to fix. |
221 | |
222 | =head1 COPYRIGHT |
223 | |
224 | Copyright (c) 2010 the App::FatPacker L</AUTHOR> and L</CONTRIBUTORS> |
225 | as listed above. |
226 | |
227 | =head1 LICENSE |
228 | |
229 | This library is free software and may be distributed under the same terms |
230 | as perl itself. |
231 | |
232 | =cut |
233 | |
48af1939 |
234 | 1; |