Commit | Line | Data |
b5cc15f7 |
1 | use strict; |
2 | use warnings; |
3 | |
4 | package local::lib; |
5 | |
c1441fb6 |
6 | use 5.008001; # probably works with earlier versions but I'm not supporting them |
7 | # (patches would, of course, be welcome) |
b5cc15f7 |
8 | |
9 | use File::Spec (); |
10 | use File::Path (); |
b5cc15f7 |
11 | use Config; |
12 | |
0d588482 |
13 | our $VERSION = '1.008018'; # 1.8.18 |
1f8043c8 |
14 | |
15f79556 |
15 | our @KNOWN_FLAGS = qw(--self-contained --deactivate --deactivate-all); |
16 | |
17 | sub DEACTIVATE_ONE () { 1 } |
18 | sub DEACTIVATE_ALL () { 2 } |
b5cc15f7 |
19 | |
3939a7ae |
20 | sub INTERPOLATE_ENV () { 1 } |
21 | sub LITERAL_ENV () { 0 } |
22 | |
b5cc15f7 |
23 | sub import { |
0fb70b9a |
24 | my ($class, @args) = @_; |
25 | |
e4892f2b |
26 | # Remember what PERL5LIB was when we started |
ea0824e7 |
27 | my $perl5lib = $ENV{PERL5LIB} || ''; |
e4892f2b |
28 | |
b9c94c15 |
29 | my %arg_store; |
30 | for my $arg (@args) { |
31 | # check for lethal dash first to stop processing before causing problems |
5eff9c24 |
32 | # the fancy dash is U+2212 or \xE2\x88\x92 |
33 | if ($arg =~ /\xE2\x88\x92/ or $arg =~ /−/) { |
d4dbe584 |
34 | die <<'DEATH'; |
35 | WHOA THERE! It looks like you've got some fancy dashes in your commandline! |
36 | These are *not* the traditional -- dashes that software recognizes. You |
37 | probably got these by copy-pasting from the perldoc for this module as |
38 | rendered by a UTF8-capable formatter. This most typically happens on an OS X |
39 | terminal, but can happen elsewhere too. Please try again after replacing the |
40 | dashes with normal minus signs. |
41 | DEATH |
b9c94c15 |
42 | } |
43 | elsif(grep { $arg eq $_ } @KNOWN_FLAGS) { |
44 | (my $flag = $arg) =~ s/--//; |
45 | $arg_store{$flag} = 1; |
46 | } |
47 | elsif($arg =~ /^--/) { |
48 | die "Unknown import argument: $arg"; |
49 | } |
50 | else { |
51 | # assume that what's left is a path |
52 | $arg_store{path} = $arg; |
53 | } |
d4dbe584 |
54 | } |
b9c94c15 |
55 | |
b10fc4d4 |
56 | if($arg_store{'self-contained'}) { |
1f8043c8 |
57 | die "FATAL: The local::lib --self-contained flag has never worked reliably and the original author, Mark Stosberg, was unable or unwilling to maintain it. As such, this flag has been removed from the local::lib codebase in order to prevent misunderstandings and potentially broken builds. The local::lib authors recommend that you look at the lib::core::only module shipped with this distribution in order to create a more robust environment that is equivalent to what --self-contained provided (although quite possibly not what you originally thought it provided due to the poor quality of the documentation, for which we apologise).\n"; |
0fb70b9a |
58 | } |
b9c94c15 |
59 | |
15f79556 |
60 | my $deactivating = 0; |
61 | if ($arg_store{deactivate}) { |
62 | $deactivating = DEACTIVATE_ONE; |
63 | } |
64 | if ($arg_store{'deactivate-all'}) { |
65 | $deactivating = DEACTIVATE_ALL; |
66 | } |
67 | |
b9c94c15 |
68 | $arg_store{path} = $class->resolve_path($arg_store{path}); |
15f79556 |
69 | $class->setup_local_lib_for($arg_store{path}, $deactivating); |
0fb70b9a |
70 | |
6e5079df |
71 | for (@INC) { # Untaint @INC |
72 | next if ref; # Skip entry if it is an ARRAY, CODE, blessed, etc. |
73 | m/(.*)/ and $_ = $1; |
74 | } |
b5cc15f7 |
75 | } |
76 | |
5b94dce5 |
77 | sub pipeline; |
b5cc15f7 |
78 | |
5b94dce5 |
79 | sub pipeline { |
b5cc15f7 |
80 | my @methods = @_; |
81 | my $last = pop(@methods); |
82 | if (@methods) { |
83 | \sub { |
84 | my ($obj, @args) = @_; |
5b94dce5 |
85 | $obj->${pipeline @methods}( |
b5cc15f7 |
86 | $obj->$last(@args) |
87 | ); |
88 | }; |
89 | } else { |
90 | \sub { |
91 | shift->$last(@_); |
92 | }; |
93 | } |
94 | } |
95 | |
275c9dae |
96 | =begin testing |
97 | |
98 | #:: test pipeline |
b5cc15f7 |
99 | |
100 | package local::lib; |
101 | |
102 | { package Foo; sub foo { -$_[1] } sub bar { $_[1]+2 } sub baz { $_[1]+3 } } |
8522f4d5 |
103 | my $foo = bless({}, 'Foo'); |
4c375968 |
104 | Test::More::ok($foo->${pipeline qw(foo bar baz)}(10) == -15); |
b5cc15f7 |
105 | |
275c9dae |
106 | =end testing |
107 | |
b5cc15f7 |
108 | =cut |
109 | |
a9489cb0 |
110 | sub _uniq { |
111 | my %seen; |
112 | grep { ! $seen{$_}++ } @_; |
113 | } |
114 | |
b5cc15f7 |
115 | sub resolve_path { |
116 | my ($class, $path) = @_; |
5b94dce5 |
117 | $class->${pipeline qw( |
b5cc15f7 |
118 | resolve_relative_path |
119 | resolve_home_path |
120 | resolve_empty_path |
121 | )}($path); |
122 | } |
123 | |
124 | sub resolve_empty_path { |
125 | my ($class, $path) = @_; |
126 | if (defined $path) { |
127 | $path; |
128 | } else { |
129 | '~/perl5'; |
130 | } |
131 | } |
132 | |
275c9dae |
133 | =begin testing |
134 | |
135 | #:: test classmethod setup |
b5cc15f7 |
136 | |
137 | my $c = 'local::lib'; |
138 | |
275c9dae |
139 | =end testing |
140 | |
141 | =begin testing |
b5cc15f7 |
142 | |
275c9dae |
143 | #:: test classmethod |
b5cc15f7 |
144 | |
145 | is($c->resolve_empty_path, '~/perl5'); |
146 | is($c->resolve_empty_path('foo'), 'foo'); |
147 | |
275c9dae |
148 | =end testing |
149 | |
b5cc15f7 |
150 | =cut |
151 | |
152 | sub resolve_home_path { |
153 | my ($class, $path) = @_; |
154 | return $path unless ($path =~ /^~/); |
155 | my ($user) = ($path =~ /^~([^\/]+)/); # can assume ^~ so undef for 'us' |
156 | my $tried_file_homedir; |
157 | my $homedir = do { |
8c6c886f |
158 | if (eval { require File::HomeDir } && $File::HomeDir::VERSION >= 0.65) { |
b5cc15f7 |
159 | $tried_file_homedir = 1; |
160 | if (defined $user) { |
161 | File::HomeDir->users_home($user); |
162 | } else { |
dc8ddd06 |
163 | File::HomeDir->my_home; |
b5cc15f7 |
164 | } |
165 | } else { |
166 | if (defined $user) { |
167 | (getpwnam $user)[7]; |
168 | } else { |
169 | if (defined $ENV{HOME}) { |
170 | $ENV{HOME}; |
171 | } else { |
172 | (getpwuid $<)[7]; |
173 | } |
174 | } |
175 | } |
176 | }; |
177 | unless (defined $homedir) { |
cd3eb741 |
178 | require Carp; |
b5cc15f7 |
179 | Carp::croak( |
180 | "Couldn't resolve homedir for " |
181 | .(defined $user ? $user : 'current user') |
182 | .($tried_file_homedir ? '' : ' - consider installing File::HomeDir') |
183 | ); |
184 | } |
185 | $path =~ s/^~[^\/]*/$homedir/; |
186 | $path; |
187 | } |
188 | |
189 | sub resolve_relative_path { |
190 | my ($class, $path) = @_; |
53699c99 |
191 | $path = File::Spec->rel2abs($path); |
b5cc15f7 |
192 | } |
193 | |
275c9dae |
194 | =begin testing |
195 | |
196 | #:: test classmethod |
b5cc15f7 |
197 | |
198 | local *File::Spec::rel2abs = sub { shift; 'FOO'.shift; }; |
199 | is($c->resolve_relative_path('bar'),'FOObar'); |
200 | |
275c9dae |
201 | =end testing |
202 | |
b5cc15f7 |
203 | =cut |
204 | |
205 | sub setup_local_lib_for { |
4c718913 |
206 | my ($class, $path, $deactivating) = @_; |
3939a7ae |
207 | |
208 | my $interpolate = LITERAL_ENV; |
209 | my @active_lls = $class->active_paths; |
210 | |
c1ed5f4b |
211 | $class->ensure_dir_structure_for($path); |
212 | |
213 | # On Win32 directories often contain spaces. But some parts of the CPAN |
214 | # toolchain don't like that. To avoid this, GetShortPathName() gives us |
215 | # an alternate representation that has none. |
216 | # This only works if the directory already exists. |
217 | $path = Win32::GetShortPathName($path) if $^O eq 'MSWin32'; |
82efaec7 |
218 | |
3939a7ae |
219 | if (! $deactivating) { |
220 | if (@active_lls && $active_lls[-1] eq $path) { |
221 | exit 0 if $0 eq '-'; |
222 | return; # Asked to add what's already at the top of the stack |
223 | } elsif (grep { $_ eq $path} @active_lls) { |
224 | # Asked to add a dir that's lower in the stack -- so we remove it from |
225 | # where it is, and then add it back at the top. |
226 | $class->setup_env_hash_for($path, DEACTIVATE_ONE); |
227 | # Which means we can no longer output "PERL5LIB=...:$PERL5LIB" stuff |
228 | # anymore because we're taking something *out*. |
229 | $interpolate = INTERPOLATE_ENV; |
230 | } |
231 | } |
232 | |
b5cc15f7 |
233 | if ($0 eq '-') { |
3939a7ae |
234 | $class->print_environment_vars_for($path, $deactivating, $interpolate); |
b5cc15f7 |
235 | exit 0; |
236 | } else { |
4c718913 |
237 | $class->setup_env_hash_for($path, $deactivating); |
cdd450c5 |
238 | my $arch_dir = $Config{archname}; |
239 | @INC = _uniq( |
c50d554b |
240 | ( |
241 | # Inject $path/$archname for each path in PERL5LIB |
242 | map { ( File::Spec->catdir($_, $arch_dir), $_ ) } |
243 | split($Config{path_sep}, $ENV{PERL5LIB}) |
244 | ), |
245 | @INC |
cdd450c5 |
246 | ); |
b5cc15f7 |
247 | } |
248 | } |
249 | |
b5cc15f7 |
250 | sub install_base_bin_path { |
251 | my ($class, $path) = @_; |
252 | File::Spec->catdir($path, 'bin'); |
253 | } |
254 | |
255 | sub install_base_perl_path { |
256 | my ($class, $path) = @_; |
257 | File::Spec->catdir($path, 'lib', 'perl5'); |
258 | } |
259 | |
260 | sub install_base_arch_path { |
261 | my ($class, $path) = @_; |
262 | File::Spec->catdir($class->install_base_perl_path($path), $Config{archname}); |
263 | } |
264 | |
265 | sub ensure_dir_structure_for { |
266 | my ($class, $path) = @_; |
267 | unless (-d $path) { |
268 | warn "Attempting to create directory ${path}\n"; |
269 | } |
270 | File::Path::mkpath($path); |
c1ed5f4b |
271 | return |
b5cc15f7 |
272 | } |
273 | |
c4e3c83b |
274 | sub guess_shelltype { |
0353dbc0 |
275 | my $shellbin = 'sh'; |
276 | if(defined $ENV{'SHELL'}) { |
277 | my @shell_bin_path_parts = File::Spec->splitpath($ENV{'SHELL'}); |
278 | $shellbin = $shell_bin_path_parts[-1]; |
279 | } |
1bc71e56 |
280 | my $shelltype = do { |
281 | local $_ = $shellbin; |
b42496e0 |
282 | if(/csh/) { |
1bc71e56 |
283 | 'csh' |
b42496e0 |
284 | } else { |
1bc71e56 |
285 | 'bourne' |
286 | } |
287 | }; |
288 | |
f58534b1 |
289 | # Both Win32 and Cygwin have $ENV{COMSPEC} set. |
290 | if (defined $ENV{'COMSPEC'} && $^O ne 'cygwin') { |
53699c99 |
291 | my @shell_bin_path_parts = File::Spec->splitpath($ENV{'COMSPEC'}); |
292 | $shellbin = $shell_bin_path_parts[-1]; |
293 | $shelltype = do { |
294 | local $_ = $shellbin; |
295 | if(/command\.com/) { |
296 | 'win32' |
297 | } elsif(/cmd\.exe/) { |
298 | 'win32' |
299 | } elsif(/4nt\.exe/) { |
300 | 'win32' |
301 | } else { |
302 | $shelltype |
303 | } |
304 | }; |
305 | } |
c4e3c83b |
306 | return $shelltype; |
307 | } |
308 | |
309 | sub print_environment_vars_for { |
3939a7ae |
310 | my ($class, $path, $deactivating, $interpolate) = @_; |
311 | print $class->environment_vars_string_for($path, $deactivating, $interpolate); |
8cc924b8 |
312 | } |
313 | |
314 | sub environment_vars_string_for { |
3939a7ae |
315 | my ($class, $path, $deactivating, $interpolate) = @_; |
316 | my @envs = $class->build_environment_vars_for($path, $deactivating, $interpolate); |
c4e3c83b |
317 | my $out = ''; |
318 | |
319 | # rather basic csh detection, goes on the assumption that something won't |
320 | # call itself csh unless it really is. also, default to bourne in the |
321 | # pathological situation where a user doesn't have $ENV{SHELL} defined. |
322 | # note also that shells with funny names, like zoid, are assumed to be |
323 | # bourne. |
324 | |
325 | my $shelltype = $class->guess_shelltype; |
53699c99 |
326 | |
b5cc15f7 |
327 | while (@envs) { |
328 | my ($name, $value) = (shift(@envs), shift(@envs)); |
4c718913 |
329 | $value =~ s/(\\")/\\$1/g if defined $value; |
1bc71e56 |
330 | $out .= $class->${\"build_${shelltype}_env_declaration"}($name, $value); |
b5cc15f7 |
331 | } |
8cc924b8 |
332 | return $out; |
b5cc15f7 |
333 | } |
334 | |
1bc71e56 |
335 | # simple routines that take two arguments: an %ENV key and a value. return |
336 | # strings that are suitable for passing directly to the relevant shell to set |
337 | # said key to said value. |
338 | sub build_bourne_env_declaration { |
339 | my $class = shift; |
340 | my($name, $value) = @_; |
4c718913 |
341 | return defined($value) ? qq{export ${name}="${value}";\n} : qq{unset ${name};\n}; |
1bc71e56 |
342 | } |
343 | |
344 | sub build_csh_env_declaration { |
345 | my $class = shift; |
346 | my($name, $value) = @_; |
4c718913 |
347 | return defined($value) ? qq{setenv ${name} "${value}"\n} : qq{unsetenv ${name}\n}; |
1bc71e56 |
348 | } |
349 | |
53699c99 |
350 | sub build_win32_env_declaration { |
351 | my $class = shift; |
352 | my($name, $value) = @_; |
4c718913 |
353 | return defined($value) ? qq{set ${name}=${value}\n} : qq{set ${name}=\n}; |
53699c99 |
354 | } |
355 | |
b5cc15f7 |
356 | sub setup_env_hash_for { |
4c718913 |
357 | my ($class, $path, $deactivating) = @_; |
358 | my %envs = $class->build_environment_vars_for($path, $deactivating, INTERPOLATE_ENV); |
b5cc15f7 |
359 | @ENV{keys %envs} = values %envs; |
360 | } |
361 | |
362 | sub build_environment_vars_for { |
4c718913 |
363 | my ($class, $path, $deactivating, $interpolate) = @_; |
364 | |
15f79556 |
365 | if ($deactivating == DEACTIVATE_ONE) { |
4c718913 |
366 | return $class->build_deactivate_environment_vars_for($path, $interpolate); |
15f79556 |
367 | } elsif ($deactivating == DEACTIVATE_ALL) { |
368 | return $class->build_deact_all_environment_vars_for($path, $interpolate); |
4c718913 |
369 | } else { |
370 | return $class->build_activate_environment_vars_for($path, $interpolate); |
371 | } |
372 | } |
373 | |
1bf7d892 |
374 | # Build an environment value for a variable like PATH from a list of paths. |
375 | # References to existing variables are given as references to the variable name. |
376 | # Duplicates are removed. |
377 | # |
378 | # options: |
379 | # - interpolate: INTERPOLATE_ENV/LITERAL_ENV |
380 | # - exists: paths are included only if they exist (default: interpolate == INTERPOLATE_ENV) |
381 | # - filter: function to apply to each path do decide if it must be included |
382 | # - empty: the value to return in the case of empty value |
f878d9c1 |
383 | my %ENV_LIST_VALUE_DEFAULTS = ( |
1bf7d892 |
384 | interpolate => INTERPOLATE_ENV, |
385 | exists => undef, |
386 | filter => sub { 1 }, |
387 | empty => undef, |
388 | ); |
48eb676f |
389 | sub _env_list_value { |
1bf7d892 |
390 | my $options = shift; |
391 | die(sprintf "unknown option '$_' at %s line %u\n", (caller)[1..2]) |
f878d9c1 |
392 | for grep { !exists $ENV_LIST_VALUE_DEFAULTS{$_} } keys %$options; |
393 | my %options = (%ENV_LIST_VALUE_DEFAULTS, %{ $options }); |
1bf7d892 |
394 | $options{exists} = $options{interpolate} == INTERPOLATE_ENV |
395 | unless defined $options{exists}; |
396 | |
397 | my %seen; |
398 | |
399 | my $value = join($Config{path_sep}, map { |
400 | ref $_ ? ($^O eq 'MSWin32' ? "%${$_}%" : "\$${$_}") : $_ |
401 | } grep { |
402 | ref $_ || (defined $_ |
403 | && length($_) > 0 |
404 | && !$seen{$_}++ |
405 | && $options{filter}->($_) |
406 | && (!$options{exists} || -e $_)) |
407 | } map { |
408 | if (ref $_ eq 'SCALAR' && $options{interpolate} == INTERPOLATE_ENV) { |
373b3c18 |
409 | defined $ENV{${$_}} ? (split /\Q$Config{path_sep}/, $ENV{${$_}}) : () |
1bf7d892 |
410 | } else { |
411 | $_ |
412 | } |
413 | } @_); |
414 | return length($value) ? $value : $options{empty}; |
415 | } |
416 | |
4c718913 |
417 | sub build_activate_environment_vars_for { |
b5cc15f7 |
418 | my ($class, $path, $interpolate) = @_; |
419 | return ( |
1bf7d892 |
420 | PERL_LOCAL_LIB_ROOT => |
421 | _env_list_value( |
422 | { interpolate => $interpolate, exists => 0, empty => '' }, |
423 | \'PERL_LOCAL_LIB_ROOT', |
424 | $path, |
393c618d |
425 | ), |
e322149f |
426 | PERL_MB_OPT => "--install_base ${path}", |
b5cc15f7 |
427 | PERL_MM_OPT => "INSTALL_BASE=${path}", |
1bf7d892 |
428 | PERL5LIB => |
429 | _env_list_value( |
430 | { interpolate => $interpolate, exists => 0, empty => '' }, |
1bf7d892 |
431 | $class->install_base_perl_path($path), |
432 | \'PERL5LIB', |
433 | ), |
434 | PATH => _env_list_value( |
435 | { interpolate => $interpolate, exists => 0, empty => '' }, |
c50d554b |
436 | $class->install_base_bin_path($path), |
1bf7d892 |
437 | \'PATH', |
438 | ), |
b5cc15f7 |
439 | ) |
440 | } |
441 | |
29500601 |
442 | sub active_paths { |
443 | my ($class) = @_; |
444 | |
445 | return () unless defined $ENV{PERL_LOCAL_LIB_ROOT}; |
24351831 |
446 | |
447 | return grep { |
448 | # screen out entries that aren't actually reflected in @INC |
449 | my $active_ll = $class->install_base_perl_path($_); |
450 | grep { $_ eq $active_ll } @INC |
451 | } |
452 | grep { $_ ne '' } |
453 | split /\Q$Config{path_sep}\E/, $ENV{PERL_LOCAL_LIB_ROOT}; |
29500601 |
454 | } |
455 | |
4c718913 |
456 | sub build_deactivate_environment_vars_for { |
457 | my ($class, $path, $interpolate) = @_; |
458 | |
29500601 |
459 | my @active_lls = $class->active_paths; |
4c718913 |
460 | |
461 | if (!grep { $_ eq $path } @active_lls) { |
462 | warn "Tried to deactivate inactive local::lib '$path'\n"; |
463 | return (); |
464 | } |
465 | |
1bf7d892 |
466 | my $perl_path = $class->install_base_perl_path($path); |
467 | my $arch_path = $class->install_base_arch_path($path); |
468 | my $bin_path = $class->install_base_bin_path($path); |
469 | |
4c718913 |
470 | |
471 | my %env = ( |
1bf7d892 |
472 | PERL_LOCAL_LIB_ROOT => _env_list_value( |
473 | { |
474 | exists => 0, |
475 | }, |
476 | grep { $_ ne $path } @active_lls |
4c718913 |
477 | ), |
1bf7d892 |
478 | PERL5LIB => _env_list_value( |
479 | { |
480 | exists => 0, |
481 | filter => sub { |
482 | $_ ne $perl_path && $_ ne $arch_path |
483 | }, |
484 | }, |
485 | \'PERL5LIB', |
4c718913 |
486 | ), |
1bf7d892 |
487 | PATH => _env_list_value( |
488 | { |
489 | exists => 0, |
490 | filter => sub { $_ ne $bin_path }, |
491 | }, |
492 | \'PATH', |
4c718913 |
493 | ), |
494 | ); |
495 | |
496 | # If removing ourselves from the "top of the stack", set install paths to |
497 | # correspond with the new top of stack. |
498 | if ($active_lls[-1] eq $path) { |
63c6ddda |
499 | my $new_top = $active_lls[-2]; |
500 | $env{PERL_MB_OPT} = defined($new_top) ? "--install_base ${new_top}" : undef; |
501 | $env{PERL_MM_OPT} = defined($new_top) ? "INSTALL_BASE=${new_top}" : undef; |
4c718913 |
502 | } |
503 | |
504 | return %env; |
505 | } |
506 | |
15f79556 |
507 | sub build_deact_all_environment_vars_for { |
508 | my ($class, $path, $interpolate) = @_; |
509 | |
29500601 |
510 | my @active_lls = $class->active_paths; |
15f79556 |
511 | |
1bf7d892 |
512 | my %perl_paths = map { ( |
513 | $class->install_base_perl_path($_) => 1, |
514 | $class->install_base_arch_path($_) => 1 |
515 | ) } @active_lls; |
516 | my %bin_paths = map { ( |
517 | $class->install_base_bin_path($_) => 1, |
518 | ) } @active_lls; |
15f79556 |
519 | |
520 | my %env = ( |
521 | PERL_LOCAL_LIB_ROOT => undef, |
522 | PERL_MM_OPT => undef, |
523 | PERL_MB_OPT => undef, |
1bf7d892 |
524 | PERL5LIB => _env_list_value( |
525 | { |
526 | exists => 0, |
527 | filter => sub { |
528 | ! scalar grep { exists $perl_paths{$_} } $_[0] |
529 | }, |
530 | }, |
531 | \'PERL5LIB' |
532 | ), |
533 | PATH => _env_list_value( |
534 | { |
535 | exists => 0, |
536 | filter => sub { |
537 | ! scalar grep { exists $bin_paths{$_} } $_[0] |
538 | }, |
539 | }, |
540 | \'PATH' |
15f79556 |
541 | ), |
15f79556 |
542 | ); |
543 | |
544 | return %env; |
545 | } |
546 | |
275c9dae |
547 | =begin testing |
548 | |
549 | #:: test classmethod |
b5cc15f7 |
550 | |
551 | File::Path::rmtree('t/var/splat'); |
552 | |
4c375968 |
553 | $c->ensure_dir_structure_for('t/var/splat'); |
b5cc15f7 |
554 | |
555 | ok(-d 't/var/splat'); |
556 | |
275c9dae |
557 | =end testing |
558 | |
898f36cf |
559 | =encoding utf8 |
560 | |
b5cc15f7 |
561 | =head1 NAME |
562 | |
563 | local::lib - create and use a local lib/ for perl modules with PERL5LIB |
564 | |
565 | =head1 SYNOPSIS |
566 | |
567 | In code - |
568 | |
569 | use local::lib; # sets up a local lib at ~/perl5 |
570 | |
571 | use local::lib '~/foo'; # same, but ~/foo |
572 | |
1bc71e56 |
573 | # Or... |
574 | use FindBin; |
575 | use local::lib "$FindBin::Bin/../support"; # app-local support library |
576 | |
b5cc15f7 |
577 | From the shell - |
578 | |
359329d3 |
579 | # Install LWP and its missing dependencies to the '~/perl5' directory |
580 | perl -MCPAN -Mlocal::lib -e 'CPAN::install(LWP)' |
0fb70b9a |
581 | |
0fb70b9a |
582 | # Just print out useful shell commands |
b5cc15f7 |
583 | $ perl -Mlocal::lib |
e322149f |
584 | export PERL_MB_OPT='--install_base /home/username/perl5' |
c4e3c83b |
585 | export PERL_MM_OPT='INSTALL_BASE=/home/username/perl5' |
586 | export PERL5LIB='/home/username/perl5/lib/perl5/i386-linux:/home/username/perl5/lib/perl5' |
587 | export PATH="/home/username/perl5/bin:$PATH" |
b5cc15f7 |
588 | |
322b0a0d |
589 | =head2 The bootstrapping technique |
bc30e1d5 |
590 | |
730f5dda |
591 | A typical way to install local::lib is using what is known as the |
592 | "bootstrapping" technique. You would do this if your system administrator |
593 | hasn't already installed local::lib. In this case, you'll need to install |
8522f4d5 |
594 | local::lib in your home directory. |
898f36cf |
595 | |
0ad9f83d |
596 | Even if you do have administrative privileges, you will still want to set up your |
898f36cf |
597 | environment variables, as discussed in step 4. Without this, you would still |
598 | install the modules into the system CPAN installation and also your Perl scripts |
599 | will not use the lib/ path you bootstrapped with local::lib. |
600 | |
04f8efde |
601 | By default local::lib installs itself and the CPAN modules into ~/perl5. |
602 | |
898f36cf |
603 | Windows users must also see L</Differences when using this module under Win32>. |
715c31a0 |
604 | |
730f5dda |
605 | 1. Download and unpack the local::lib tarball from CPAN (search for "Download" |
606 | on the CPAN page about local::lib). Do this as an ordinary user, not as root |
607 | or administrator. Unpack the file in your home directory or in any other |
608 | convenient location. |
715c31a0 |
609 | |
730f5dda |
610 | 2. Run this: |
715c31a0 |
611 | |
730f5dda |
612 | perl Makefile.PL --bootstrap |
715c31a0 |
613 | |
730f5dda |
614 | If the system asks you whether it should automatically configure as much |
615 | as possible, you would typically answer yes. |
616 | |
04f8efde |
617 | In order to install local::lib into a directory other than the default, you need |
618 | to specify the name of the directory when you call bootstrap, as follows: |
898f36cf |
619 | |
620 | perl Makefile.PL --bootstrap=~/foo |
621 | |
622 | 3. Run this: (local::lib assumes you have make installed on your system) |
730f5dda |
623 | |
624 | make test && make install |
625 | |
8522f4d5 |
626 | 4. Now we need to setup the appropriate environment variables, so that Perl |
898f36cf |
627 | starts using our newly generated lib/ directory. If you are using bash or |
628 | any other Bourne shells, you can add this to your shell startup script this |
629 | way: |
730f5dda |
630 | |
631 | echo 'eval $(perl -I$HOME/perl5/lib/perl5 -Mlocal::lib)' >>~/.bashrc |
632 | |
633 | If you are using C shell, you can do this as follows: |
634 | |
635 | /bin/csh |
636 | echo $SHELL |
618272fe |
637 | /bin/csh |
730f5dda |
638 | perl -I$HOME/perl5/lib/perl5 -Mlocal::lib >> ~/.cshrc |
dc8ddd06 |
639 | |
8522f4d5 |
640 | If you passed to bootstrap a directory other than default, you also need to give that as |
898f36cf |
641 | import parameter to the call of the local::lib module like this way: |
8b1e8e69 |
642 | |
730f5dda |
643 | echo 'eval $(perl -I$HOME/foo/lib/perl5 -Mlocal::lib=$HOME/foo)' >>~/.bashrc |
618272fe |
644 | |
aab64481 |
645 | After writing your shell configuration file, be sure to re-read it to get the |
8522f4d5 |
646 | changed settings into your current shell's environment. Bourne shells use |
898f36cf |
647 | C<. ~/.bashrc> for this, whereas C shells use C<source ~/.cshrc>. |
aab64481 |
648 | |
b9c94c15 |
649 | If you're on a slower machine, or are operating under draconian disk space |
650 | limitations, you can disable the automatic generation of manpages from POD when |
651 | installing modules by using the C<--no-manpages> argument when bootstrapping: |
652 | |
730f5dda |
653 | perl Makefile.PL --bootstrap --no-manpages |
b9c94c15 |
654 | |
8522f4d5 |
655 | To avoid doing several bootstrap for several Perl module environments on the |
656 | same account, for example if you use it for several different deployed |
657 | applications independently, you can use one bootstrapped local::lib |
898f36cf |
658 | installation to install modules in different directories directly this way: |
977a9ca3 |
659 | |
730f5dda |
660 | cd ~/mydir1 |
661 | perl -Mlocal::lib=./ |
662 | eval $(perl -Mlocal::lib=./) ### To set the environment for this shell alone |
898f36cf |
663 | printenv ### You will see that ~/mydir1 is in the PERL5LIB |
730f5dda |
664 | perl -MCPAN -e install ... ### whatever modules you want |
665 | cd ../mydir2 |
666 | ... REPEAT ... |
667 | |
480534a8 |
668 | If you are working with several C<local::lib> environments, you may want to |
669 | remove some of them from the current environment without disturbing the others. |
670 | You can deactivate one environment like this (using bourne sh): |
671 | |
672 | eval $(perl -Mlocal::lib=--deactivate,~/path) |
673 | |
674 | which will generate and run the commands needed to remove C<~/path> from your |
675 | various search paths. Whichever environment was B<activated most recently> will |
676 | remain the target for module installations. That is, if you activate |
677 | C<~/path_A> and then you activate C<~/path_B>, new modules you install will go |
678 | in C<~/path_B>. If you deactivate C<~/path_B> then modules will be installed |
679 | into C<~/pathA> -- but if you deactivate C<~/path_A> then they will still be |
680 | installed in C<~/pathB> because pathB was activated later. |
681 | |
682 | You can also ask C<local::lib> to clean itself completely out of the current |
683 | shell's environment with the C<--deactivate-all> option. |
730f5dda |
684 | For multiple environments for multiple apps you may need to include a modified |
685 | version of the C<< use FindBin >> instructions in the "In code" sample above. |
686 | If you did something like the above, you have a set of Perl modules at C<< |
687 | ~/mydir1/lib >>. If you have a script at C<< ~/mydir1/scripts/myscript.pl >>, |
688 | you need to tell it where to find the modules you installed for it at C<< |
689 | ~/mydir1/lib >>. |
977a9ca3 |
690 | |
691 | In C<< ~/mydir1/scripts/myscript.pl >>: |
692 | |
730f5dda |
693 | use strict; |
694 | use warnings; |
695 | use local::lib "$FindBin::Bin/.."; ### points to ~/mydir1 and local::lib finds lib |
696 | use lib "$FindBin::Bin/../lib"; ### points to ~/mydir1/lib |
977a9ca3 |
697 | |
698 | Put this before any BEGIN { ... } blocks that require the modules you installed. |
699 | |
53699c99 |
700 | =head2 Differences when using this module under Win32 |
701 | |
76f30678 |
702 | To set up the proper environment variables for your current session of |
703 | C<CMD.exe>, you can use this: |
704 | |
730f5dda |
705 | C:\>perl -Mlocal::lib |
e322149f |
706 | set PERL_MB_OPT=--install_base C:\DOCUME~1\ADMINI~1\perl5 |
730f5dda |
707 | set PERL_MM_OPT=INSTALL_BASE=C:\DOCUME~1\ADMINI~1\perl5 |
708 | set PERL5LIB=C:\DOCUME~1\ADMINI~1\perl5\lib\perl5;C:\DOCUME~1\ADMINI~1\perl5\lib\perl5\MSWin32-x86-multi-thread |
709 | set PATH=C:\DOCUME~1\ADMINI~1\perl5\bin;%PATH% |
8522f4d5 |
710 | |
898f36cf |
711 | ### To set the environment for this shell alone |
d4ccf2ea |
712 | C:\>perl -Mlocal::lib > %TEMP%\tmp.bat && %TEMP%\tmp.bat && del %TEMP%\tmp.bat |
730f5dda |
713 | ### instead of $(perl -Mlocal::lib=./) |
53699c99 |
714 | |
715 | If you want the environment entries to persist, you'll need to add then to the |
76f30678 |
716 | Control Panel's System applet yourself or use L<App::local::lib::Win32Helper>. |
53699c99 |
717 | |
718 | The "~" is translated to the user's profile directory (the directory named for |
719 | the user under "Documents and Settings" (Windows XP or earlier) or "Users" |
9bc0788f |
720 | (Windows Vista or later)) unless $ENV{HOME} exists. After that, the home |
53699c99 |
721 | directory is translated to a short name (which means the directory must exist) |
722 | and the subdirectories are created. |
723 | |
730f5dda |
724 | =head1 RATIONALE |
725 | |
726 | The version of a Perl package on your machine is not always the version you |
727 | need. Obviously, the best thing to do would be to update to the version you |
728 | need. However, you might be in a situation where you're prevented from doing |
729 | this. Perhaps you don't have system administrator privileges; or perhaps you |
730 | are using a package management system such as Debian, and nobody has yet gotten |
731 | around to packaging up the version you need. |
732 | |
733 | local::lib solves this problem by allowing you to create your own directory of |
734 | Perl packages downloaded from CPAN (in a multi-user system, this would typically |
735 | be within your own home directory). The existing system Perl installation is |
736 | not affected; you simply invoke Perl with special options so that Perl uses the |
737 | packages in your own local package directory rather than the system packages. |
738 | local::lib arranges things so that your locally installed version of the Perl |
739 | packages takes precedence over the system installation. |
740 | |
741 | If you are using a package management system (such as Debian), you don't need to |
742 | worry about Debian and CPAN stepping on each other's toes. Your local version |
743 | of the packages will be written to an entirely separate directory from those |
8522f4d5 |
744 | installed by Debian. |
730f5dda |
745 | |
618272fe |
746 | =head1 DESCRIPTION |
747 | |
748 | This module provides a quick, convenient way of bootstrapping a user-local Perl |
749 | module library located within the user's home directory. It also constructs and |
750 | prints out for the user the list of environment variables using the syntax |
751 | appropriate for the user's current shell (as specified by the C<SHELL> |
730f5dda |
752 | environment variable), suitable for directly adding to one's shell |
753 | configuration file. |
754 | |
755 | More generally, local::lib allows for the bootstrapping and usage of a |
756 | directory containing Perl modules outside of Perl's C<@INC>. This makes it |
757 | easier to ship an application with an app-specific copy of a Perl module, or |
758 | collection of modules. Useful in cases like when an upstream maintainer hasn't |
759 | applied a patch to a module of theirs that you need for your application. |
1bc71e56 |
760 | |
761 | On import, local::lib sets the following environment variables to appropriate |
762 | values: |
763 | |
764 | =over 4 |
765 | |
e322149f |
766 | =item PERL_MB_OPT |
1bc71e56 |
767 | |
768 | =item PERL_MM_OPT |
769 | |
770 | =item PERL5LIB |
771 | |
772 | =item PATH |
773 | |
774 | PATH is appended to, rather than clobbered. |
775 | |
776 | =back |
777 | |
778 | These values are then available for reference by any code after import. |
779 | |
b0c48f8e |
780 | =head1 CREATING A SELF-CONTAINED SET OF MODULES |
781 | |
a949ebcd |
782 | See L<lib::core::only> for one way to do this - but note that |
d8b1a404 |
783 | there are a number of caveats, and the best approach is always to perform a |
784 | build against a clean perl (i.e. site and vendor as close to empty as possible). |
b0c48f8e |
785 | |
480534a8 |
786 | =head1 OPTIONS |
787 | |
788 | Options are values that can be passed to the C<local::lib> import besides the |
789 | directory to use. They are specified as C<use local::lib '--option'[, path];> |
790 | or C<perl -Mlocal::lib=--option[,path]>. |
791 | |
792 | =head2 --deactivate |
793 | |
794 | Remove the chosen path (or the default path) from the module search paths if it |
795 | was added by C<local::lib>, instead of adding it. |
796 | |
797 | =head2 --deactivate-all |
798 | |
799 | Remove all directories that were added to search paths by C<local::lib> from the |
800 | search paths. |
801 | |
480e6e85 |
802 | =head1 METHODS |
803 | |
a949ebcd |
804 | =head2 ensure_dir_structure_for |
480e6e85 |
805 | |
806 | =over 4 |
807 | |
a949ebcd |
808 | =item Arguments: $path |
809 | |
810 | =item Return value: None |
480e6e85 |
811 | |
812 | =back |
813 | |
814 | Attempts to create the given path, and all required parent directories. Throws |
815 | an exception on failure. |
816 | |
817 | =head2 print_environment_vars_for |
818 | |
819 | =over 4 |
820 | |
a949ebcd |
821 | =item Arguments: $path |
822 | |
823 | =item Return value: None |
480e6e85 |
824 | |
825 | =back |
826 | |
827 | Prints to standard output the variables listed above, properly set to use the |
828 | given path as the base directory. |
829 | |
a949ebcd |
830 | =head2 build_environment_vars_for |
831 | |
832 | =over 4 |
833 | |
834 | =item Arguments: $path, $interpolate |
835 | |
836 | =item Return value: \%environment_vars |
837 | |
838 | =back |
839 | |
291b5a3a |
840 | Returns a hash with the variables listed above, properly set to use the |
841 | given path as the base directory. |
842 | |
480e6e85 |
843 | =head2 setup_env_hash_for |
844 | |
845 | =over 4 |
846 | |
a949ebcd |
847 | =item Arguments: $path |
848 | |
849 | =item Return value: None |
480e6e85 |
850 | |
851 | =back |
852 | |
853 | Constructs the C<%ENV> keys for the given path, by calling |
a949ebcd |
854 | L</build_environment_vars_for>. |
480e6e85 |
855 | |
5a63c13e |
856 | =head2 active_paths |
857 | |
858 | =over 4 |
859 | |
860 | =item Arguments: None |
861 | |
862 | =item Return value: @paths |
863 | |
864 | =back |
865 | |
866 | Returns a list of active C<local::lib> paths, according to the |
24351831 |
867 | C<PERL_LOCAL_LIB_ROOT> environment variable and verified against |
868 | what is really in C<@INC>. |
5a63c13e |
869 | |
480e6e85 |
870 | =head2 install_base_perl_path |
871 | |
872 | =over 4 |
873 | |
a949ebcd |
874 | =item Arguments: $path |
875 | |
876 | =item Return value: $install_base_perl_path |
480e6e85 |
877 | |
878 | =back |
879 | |
880 | Returns a path describing where to install the Perl modules for this local |
881 | library installation. Appends the directories C<lib> and C<perl5> to the given |
882 | path. |
883 | |
884 | =head2 install_base_arch_path |
885 | |
886 | =over 4 |
887 | |
a949ebcd |
888 | =item Arguments: $path |
889 | |
890 | =item Return value: $install_base_arch_path |
480e6e85 |
891 | |
892 | =back |
893 | |
894 | Returns a path describing where to install the architecture-specific Perl |
895 | modules for this local library installation. Based on the |
896 | L</install_base_perl_path> method's return value, and appends the value of |
897 | C<$Config{archname}>. |
898 | |
899 | =head2 install_base_bin_path |
900 | |
901 | =over 4 |
902 | |
a949ebcd |
903 | =item Arguments: $path |
904 | |
905 | =item Return value: $install_base_bin_path |
480e6e85 |
906 | |
907 | =back |
908 | |
909 | Returns a path describing where to install the executable programs for this |
910 | local library installation. Based on the L</install_base_perl_path> method's |
911 | return value, and appends the directory C<bin>. |
912 | |
480e6e85 |
913 | =head2 resolve_empty_path |
914 | |
915 | =over 4 |
916 | |
a949ebcd |
917 | =item Arguments: $path |
918 | |
919 | =item Return value: $base_path |
480e6e85 |
920 | |
921 | =back |
922 | |
923 | Builds and returns the base path into which to set up the local module |
924 | installation. Defaults to C<~/perl5>. |
925 | |
926 | =head2 resolve_home_path |
927 | |
928 | =over 4 |
929 | |
a949ebcd |
930 | =item Arguments: $path |
931 | |
932 | =item Return value: $home_path |
480e6e85 |
933 | |
934 | =back |
935 | |
936 | Attempts to find the user's home directory. If installed, uses C<File::HomeDir> |
937 | for this purpose. If no definite answer is available, throws an exception. |
938 | |
939 | =head2 resolve_relative_path |
940 | |
941 | =over 4 |
942 | |
a949ebcd |
943 | =item Arguments: $path |
944 | |
945 | =item Return value: $absolute_path |
480e6e85 |
946 | |
947 | =back |
948 | |
949 | Translates the given path into an absolute path. |
950 | |
951 | =head2 resolve_path |
952 | |
953 | =over 4 |
954 | |
a949ebcd |
955 | =item Arguments: $path |
956 | |
957 | =item Return value: $absolute_path |
480e6e85 |
958 | |
959 | =back |
960 | |
961 | Calls the following in a pipeline, passing the result from the previous to the |
962 | next, in an attempt to find where to configure the environment for a local |
963 | library installation: L</resolve_empty_path>, L</resolve_home_path>, |
964 | L</resolve_relative_path>. Passes the given path argument to |
965 | L</resolve_empty_path> which then returns a result that is passed to |
966 | L</resolve_home_path>, which then has its result passed to |
967 | L</resolve_relative_path>. The result of this final call is returned from |
968 | L</resolve_path>. |
969 | |
0fb70b9a |
970 | =head1 A WARNING ABOUT UNINST=1 |
971 | |
972 | Be careful about using local::lib in combination with "make install UNINST=1". |
973 | The idea of this feature is that will uninstall an old version of a module |
974 | before installing a new one. However it lacks a safety check that the old |
975 | version and the new version will go in the same directory. Used in combination |
976 | with local::lib, you can potentially delete a globally accessible version of a |
381738d7 |
977 | module while installing the new version in a local place. Only combine "make |
0fb70b9a |
978 | install UNINST=1" and local::lib if you understand these possible consequences. |
979 | |
dc8ddd06 |
980 | =head1 LIMITATIONS |
981 | |
788ea146 |
982 | =over 4 |
983 | |
984 | =item * The perl toolchain is unable to handle directory names with spaces in it, |
469251c5 |
985 | so you can't put your local::lib bootstrap into a directory with spaces. What |
a8e981cf |
986 | you can do is moving your local::lib to a directory with spaces B<after> you |
987 | installed all modules inside your local::lib bootstrap. But be aware that you |
469251c5 |
988 | can't update or install CPAN modules after the move. |
47e70ca1 |
989 | |
788ea146 |
990 | =item * Rather basic shell detection. Right now anything with csh in its name is |
618272fe |
991 | assumed to be a C shell or something compatible, and everything else is assumed |
53699c99 |
992 | to be Bourne, except on Win32 systems. If the C<SHELL> environment variable is |
993 | not set, a Bourne-compatible shell is assumed. |
dc8ddd06 |
994 | |
788ea146 |
995 | =item * Bootstrap is a hack and will use CPAN.pm for ExtUtils::MakeMaker even if you |
dc8ddd06 |
996 | have CPANPLUS installed. |
997 | |
788ea146 |
998 | =item * Kills any existing PERL5LIB, PERL_MM_OPT or PERL_MB_OPT. |
dc8ddd06 |
999 | |
788ea146 |
1000 | =item * Should probably auto-fixup CPAN config if not already done. |
1001 | |
1002 | =back |
e423efce |
1003 | |
dc8ddd06 |
1004 | Patches very much welcome for any of the above. |
bc30e1d5 |
1005 | |
788ea146 |
1006 | =over 4 |
1007 | |
1008 | =item * On Win32 systems, does not have a way to write the created environment variables |
53699c99 |
1009 | to the registry, so that they can persist through a reboot. |
1010 | |
788ea146 |
1011 | =back |
1012 | |
9a021b2b |
1013 | =head1 TROUBLESHOOTING |
1014 | |
1015 | If you've configured local::lib to install CPAN modules somewhere in to your |
1016 | home directory, and at some point later you try to install a module with C<cpan |
1017 | -i Foo::Bar>, but it fails with an error like: C<Warning: You do not have |
1018 | permissions to install into /usr/lib64/perl5/site_perl/5.8.8/x86_64-linux at |
1019 | /usr/lib64/perl5/5.8.8/Foo/Bar.pm> and buried within the install log is an |
1020 | error saying C<'INSTALL_BASE' is not a known MakeMaker parameter name>, then |
1021 | you've somehow lost your updated ExtUtils::MakeMaker module. |
1022 | |
1023 | To remedy this situation, rerun the bootstrapping procedure documented above. |
1024 | |
1025 | Then, run C<rm -r ~/.cpan/build/Foo-Bar*> |
1026 | |
1027 | Finally, re-run C<cpan -i Foo::Bar> and it should install without problems. |
1028 | |
618272fe |
1029 | =head1 ENVIRONMENT |
1030 | |
1031 | =over 4 |
1032 | |
1033 | =item SHELL |
1034 | |
53699c99 |
1035 | =item COMSPEC |
1036 | |
618272fe |
1037 | local::lib looks at the user's C<SHELL> environment variable when printing out |
1038 | commands to add to the shell configuration file. |
1039 | |
53699c99 |
1040 | On Win32 systems, C<COMSPEC> is also examined. |
1041 | |
618272fe |
1042 | =back |
1043 | |
163f162c |
1044 | =head1 SEE ALSO |
1045 | |
1046 | =over 4 |
1047 | |
1048 | =item * L<Perl Advent article, 2011|http://perladvent.org/2011/2011-12-01.html> |
1049 | |
1050 | =back |
1051 | |
cc19e8d4 |
1052 | =head1 SUPPORT |
1053 | |
1054 | IRC: |
1055 | |
1056 | Join #local-lib on irc.perl.org. |
1057 | |
b5cc15f7 |
1058 | =head1 AUTHOR |
1059 | |
1060 | Matt S Trout <mst@shadowcat.co.uk> http://www.shadowcat.co.uk/ |
1061 | |
d6b71a2d |
1062 | auto_install fixes kindly sponsored by http://www.takkle.com/ |
1063 | |
b5c1154d |
1064 | =head1 CONTRIBUTORS |
1065 | |
1066 | Patches to correctly output commands for csh style shells, as well as some |
1067 | documentation additions, contributed by Christopher Nehren <apeiron@cpan.org>. |
1068 | |
cc19e8d4 |
1069 | Doc patches for a custom local::lib directory, more cleanups in the english |
a949ebcd |
1070 | documentation and a L<german documentation|POD2::DE::local::lib> contributed by Torsten Raudssus |
8b1e8e69 |
1071 | <torsten@raudssus.de>. |
1072 | |
be160790 |
1073 | Hans Dieter Pearcey <hdp@cpan.org> sent in some additional tests for ensuring |
9a021b2b |
1074 | things will install properly, submitted a fix for the bug causing problems with |
1075 | writing Makefiles during bootstrapping, contributed an example program, and |
1076 | submitted yet another fix to ensure that local::lib can install and bootstrap |
1077 | properly. Many, many thanks! |
1078 | |
1079 | pattern of Freenode IRC contributed the beginnings of the Troubleshooting |
1080 | section. Many thanks! |
be160790 |
1081 | |
53699c99 |
1082 | Patch to add Win32 support contributed by Curtis Jewell <csjewell@cpan.org>. |
1083 | |
03b91976 |
1084 | Warnings for missing PATH/PERL5LIB (as when not running interactively) silenced |
1085 | by a patch from Marco Emilio Poleggi. |
1086 | |
1f8043c8 |
1087 | Mark Stosberg <mark@summersault.com> provided the code for the now deleted |
1088 | '--self-contained' option. |
1089 | |
76f30678 |
1090 | Documentation patches to make win32 usage clearer by |
1091 | David Mertens <dcmertens.perl@gmail.com> (run4flat). |
1092 | |
a949ebcd |
1093 | Brazilian L<portuguese translation|POD2::PT_BR::local::lib> and minor doc patches contributed by Breno |
ccf362c0 |
1094 | G. de Oliveira <garu@cpan.org>. |
1095 | |
a0b3d98a |
1096 | Improvements to stacking multiple local::lib dirs and removing them from the |
1097 | environment later on contributed by Andrew Rodland <arodland@cpan.org>. |
1098 | |
cd3eb741 |
1099 | Patch for Carp version mismatch contributed by Hakim Cassimally <osfameron@cpan.org>. |
1100 | |
7c0db165 |
1101 | =head1 COPYRIGHT |
1102 | |
cc19e8d4 |
1103 | Copyright (c) 2007 - 2010 the local::lib L</AUTHOR> and L</CONTRIBUTORS> as |
7c0db165 |
1104 | listed above. |
1105 | |
b5cc15f7 |
1106 | =head1 LICENSE |
1107 | |
7c0db165 |
1108 | This library is free software and may be distributed under the same terms |
1109 | as perl itself. |
b5cc15f7 |
1110 | |
1111 | =cut |
1112 | |
1113 | 1; |