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273c3903 MM |
1 | #!/usr/bin/perl |
2 | ||
3 | # GNU Stow - manage the installation of multiple software packages | |
4 | # Copyright (C) 1993, 1994, 1995, 1996 by Bob Glickstein | |
5 | # Copyright (C) 2000,2001 Guillaume Morin | |
6 | # | |
7 | # This program is free software; you can redistribute it and/or modify | |
8 | # it under the terms of the GNU General Public License as published by | |
9 | # the Free Software Foundation; either version 2 of the License, or | |
10 | # (at your option) any later version. | |
11 | # | |
12 | # This program is distributed in the hope that it will be useful, but | |
13 | # WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | # General Public License for more details. | |
16 | # | |
17 | # You should have received a copy of the GNU General Public License | |
18 | # along with this program; if not, write to the Free Software | |
19 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | # | |
21 | # $Id: stow.in,v 1.8 2002/01/05 11:27:01 gmorin Exp $ | |
22 | # $Source: /cvsroot/stow/stow/stow.in,v $ | |
23 | # $Date: 2002/01/05 11:27:01 $ | |
24 | # $Author: gmorin $ | |
25 | ||
26 | # Add ".dontfold" support. A ".dontfold" file inside a package prevents its | |
27 | # containing directory from being folded even if no other package contributes | |
28 | # to that directory. Note that the ancestor directories up to the package root | |
29 | # should have ".dontfold" files too or they might get folded. One must ensure | |
30 | # that each directory in the target gets a ".dontfold" from at most one package, | |
31 | # or stow will report conflicts. | |
32 | # - Matt 2009-10-19 | |
33 | ||
34 | # Add support for poststow scripts. - Matt 2009-10-20 | |
35 | ||
36 | require 5.005; | |
37 | use POSIX; | |
38 | use File::Basename; | |
39 | ||
40 | $ProgramName = $0; | |
41 | $ProgramName =~ s,.*/,,; | |
42 | ||
43 | $Version = '1.3.3'; | |
44 | ||
45 | $Conflicts = 0; | |
46 | $Delete = 0; | |
47 | $NotReally = 0; | |
48 | $Verbose = 0; | |
49 | $ReportHelp = 0; | |
50 | $Stow = undef; | |
51 | $Target = undef; | |
52 | $Restow = 0; | |
53 | $PoststowOnly = 0; | |
54 | ||
55 | ||
56 | # FIXME: use Getopt::Long | |
57 | while (@ARGV && ($_ = $ARGV[0]) && /^-/) { | |
58 | $opt = $'; | |
59 | shift; | |
60 | last if /^--$/; | |
61 | ||
62 | if ($opt =~ /^-/) { | |
63 | $opt = $'; | |
64 | if ($opt =~ /^no?$/i) { | |
65 | $NotReally = 1; | |
66 | } elsif ($opt =~ /^c(o(n(f(l(i(c(ts?)?)?)?)?)?)?)?$/i) { | |
67 | $Conflicts = 1; | |
68 | $NotReally = 1; | |
69 | } elsif ($opt =~ /^dir?/i) { | |
70 | $remainder = $'; | |
71 | if ($remainder =~ /^=/) { | |
72 | $Stow = $'; # the stuff after the = | |
73 | } else { | |
74 | $Stow = shift; | |
75 | } | |
76 | } elsif ($opt =~ /^t(a(r(g(et?)?)?)?)?/i) { | |
77 | $remainder = $'; | |
78 | if ($remainder =~ /^=/) { | |
79 | $Target = $'; # the stuff after the = | |
80 | } else { | |
81 | $Target = shift; | |
82 | } | |
83 | } elsif ($opt =~ /^verb(o(se?)?)?/i) { | |
84 | $remainder = $'; | |
85 | if ($remainder =~ /^=(\d+)/) { | |
86 | $Verbose = $1; | |
87 | } else { | |
88 | ++$Verbose; | |
89 | } | |
90 | } elsif ($opt =~ /^de(l(e(te?)?)?)?$/i) { | |
91 | $Delete = 1; | |
92 | } elsif ($opt =~ /^r(e(s(t(ow?)?)?)?)?$/i) { | |
93 | $Restow = 1; | |
94 | } elsif ($opt =~ /^p(o(s(t(s(t(o(w(-(o(n(ly?)?)?)?)?)?)?)?)?)?)?)?$/i) { | |
95 | $PoststowOnly = 1; | |
96 | } elsif ($opt =~ /^vers(i(on?)?)?$/i) { | |
97 | &version(); | |
98 | } else { | |
99 | &usage(($opt =~ /^h(e(lp?)?)?$/) ? undef : | |
100 | "unknown or ambiguous option: $opt"); | |
101 | } | |
102 | } else { | |
103 | @opts = split(//, $opt); | |
104 | while ($_ = shift(@opts)) { | |
105 | if ($_ eq 'n') { | |
106 | $NotReally = 1; | |
107 | } elsif ($_ eq 'c') { | |
108 | $Conflicts = 1; | |
109 | $NotReally = 1; | |
110 | } elsif ($_ eq 'd') { | |
111 | $Stow = (join('', @opts) || shift); | |
112 | @opts = (); | |
113 | } elsif ($_ eq 't') { | |
114 | $Target = (join('', @opts) || shift); | |
115 | @opts = (); | |
116 | } elsif ($_ eq 'v') { | |
117 | ++$Verbose; | |
118 | } elsif ($_ eq 'D') { | |
119 | $Delete = 1; | |
120 | } elsif ($_ eq 'R') { | |
121 | $Restow = 1; | |
122 | } elsif ($_ eq 'V') { | |
123 | &version(); | |
124 | } else { | |
125 | &usage(($_ eq 'h') ? undef : "unknown option: $_"); | |
126 | } | |
127 | } | |
128 | } | |
129 | } | |
130 | ||
131 | if ($PoststowOnly) { | |
132 | &usage("--poststow-only should be used by itself") if @ARGV; | |
133 | } else { | |
134 | &usage("No packages named") unless @ARGV; | |
135 | } | |
136 | ||
137 | # Changing dirs helps a lot when soft links are used | |
138 | $current_dir = &getcwd; | |
139 | if ($Stow) { | |
140 | chdir($Stow) || die "Cannot chdir to target tree $Stow ($!)\n"; | |
141 | } | |
142 | ||
143 | # This prevents problems if $Target was supplied as a relative path | |
144 | $Stow = &getcwd; | |
145 | ||
146 | chdir($current_dir) || die "Your directory does not seem to exist anymore ($!)\n"; | |
147 | ||
148 | unless ($Target) { | |
149 | if (basename($Stow) eq 'stow') { | |
150 | $Target = &parent($Stow); | |
151 | } else { | |
152 | die "Not using the parent of the stow directory as the target because the basename of\n" | |
153 | . "the stow directory is not \`stow'. This is a safety feature in case you\n" | |
154 | . "mistakenly run this program in the target directory, to avoid trashing its\n" | |
155 | . "parent. If you are sure you have the right stow directory, specify the target\n" | |
156 | . "with the --target option to bypass this check.\n"; | |
157 | } | |
158 | } | |
159 | ||
160 | chdir($Target) || die "Cannot chdir to target tree $Target ($!)\n"; | |
161 | $Target = &getcwd; | |
162 | ||
163 | foreach $package (@ARGV) { | |
164 | $package =~ s,/+$,,; # delete trailing slashes | |
165 | if ($package =~ m,/,) { | |
166 | die "$ProgramName: slashes not permitted in package names\n"; | |
167 | } | |
168 | } | |
169 | ||
170 | if (!$PoststowOnly && ($Delete || $Restow)) { | |
171 | @Collections = @ARGV; | |
172 | &Unstow('', &RelativePath($Target, $Stow)); | |
173 | } | |
174 | ||
175 | if (!$PoststowOnly && (!$Delete || $Restow)) { | |
176 | foreach $Collection (@ARGV) { | |
177 | warn "Stowing package $Collection...\n" if $Verbose; | |
178 | &StowContents($Collection, &RelativePath($Target, $Stow)); | |
179 | } | |
180 | } | |
181 | ||
182 | if (!$NotReally) { | |
183 | &RunPoststowScripts(); | |
184 | } | |
185 | ||
186 | sub CommonParent { | |
187 | local($dir1, $dir2) = @_; | |
188 | local($result, $x); | |
189 | local(@d1) = split(/\/+/, $dir1); | |
190 | local(@d2) = split(/\/+/, $dir2); | |
191 | ||
192 | while (@d1 && @d2 && (($x = shift(@d1)) eq shift(@d2))) { | |
193 | $result .= "$x/"; | |
194 | } | |
195 | chop($result); | |
196 | $result; | |
197 | } | |
198 | ||
199 | # Find the relative patch between | |
200 | # two paths given as arguments. | |
201 | ||
202 | sub RelativePath { | |
203 | local($a, $b) = @_; | |
204 | local($c) = &CommonParent($a, $b); | |
205 | local(@a) = split(/\/+/, $a); | |
206 | local(@b) = split(/\/+/, $b); | |
207 | local(@c) = split(/\/+/, $c); | |
208 | ||
209 | # if $c == "/something", scalar(@c) >= 2 | |
210 | # but if $c == "/", scalar(@c) == 0 | |
211 | # but we want 1 | |
212 | my $length = scalar(@c) ? scalar(@c) : 1; | |
213 | splice(@a, 0, $length); | |
214 | splice(@b, 0, $length); | |
215 | ||
216 | unshift(@b, (('..') x (@a + 0))); | |
217 | &JoinPaths(@b); | |
218 | } | |
219 | ||
220 | # Basically concatenates the paths given | |
221 | # as arguments | |
222 | ||
223 | sub JoinPaths { | |
224 | local(@paths, @parts); | |
225 | local ($x, $y); | |
226 | local($result) = ''; | |
227 | ||
228 | $result = '/' if ($_[0] =~ /^\//); | |
229 | foreach $x (@_) { | |
230 | @parts = split(/\/+/, $x); | |
231 | foreach $y (@parts) { | |
232 | push(@paths, $y) if ($y ne ""); | |
233 | } | |
234 | } | |
235 | $result .= join('/', @paths); | |
236 | } | |
237 | ||
238 | sub Unstow { | |
239 | local($targetdir, $stow) = @_; | |
240 | local(@contents); | |
241 | local($content); | |
242 | local($linktarget, $stowmember, $collection); | |
243 | local(@stowmember); | |
244 | local($pure, $othercollection) = (1, ''); | |
245 | local($subpure, $subother); | |
246 | local($empty) = (1); | |
247 | local(@puresubdirs); | |
248 | ||
249 | return (0, '') if (&JoinPaths($Target, $targetdir) eq $Stow); | |
250 | return (0, '') if (-e &JoinPaths($Target, $targetdir, '.stow')); | |
251 | warn sprintf("Unstowing in %s\n", &JoinPaths($Target, $targetdir)) | |
252 | if ($Verbose > 1); | |
253 | if (!opendir(DIR, &JoinPaths($Target, $targetdir))) { | |
254 | warn "Warning: $ProgramName: Cannot read directory \"$dir\" ($!). Stow might leave some links. If you think, it does. Rerun Stow with appropriate rights.\n"; | |
255 | } | |
256 | @contents = readdir(DIR); | |
257 | closedir(DIR); | |
258 | foreach $content (@contents) { | |
259 | next if (($content eq '.') || ($content eq '..')); | |
260 | $empty = 0; | |
261 | if (-l &JoinPaths($Target, $targetdir, $content)) { | |
262 | ($linktarget = readlink(&JoinPaths($Target, | |
263 | $targetdir, | |
264 | $content))) | |
265 | || die sprintf("%s: Cannot read link %s (%s)\n", | |
266 | $ProgramName, | |
267 | &JoinPaths($Target, $targetdir, $content), | |
268 | $!); | |
269 | if ($stowmember = &FindStowMember(&JoinPaths($Target, | |
270 | $targetdir), | |
271 | $linktarget)) { | |
272 | @stowmember = split(/\/+/, $stowmember); | |
273 | $collection = shift(@stowmember); | |
274 | if (grep(($collection eq $_), @Collections)) { | |
275 | &DoUnlink(&JoinPaths($Target, $targetdir, $content)); | |
276 | } elsif ($pure) { | |
277 | if ($content eq '.dontfold') { | |
278 | $pure = 0; | |
279 | } elsif ($othercollection) { | |
280 | $pure = 0 if ($collection ne $othercollection); | |
281 | } else { | |
282 | $othercollection = $collection; | |
283 | } | |
284 | } | |
285 | } else { | |
286 | $pure = 0; | |
287 | } | |
288 | } elsif (-d &JoinPaths($Target, $targetdir, $content)) { | |
289 | ($subpure, $subother) = &Unstow(&JoinPaths($targetdir, $content), | |
290 | &JoinPaths('..', $stow)); | |
291 | if ($subpure) { | |
292 | push(@puresubdirs, "$content/$subother"); | |
293 | } | |
294 | if ($pure) { | |
295 | if ($subpure) { | |
296 | if ($othercollection) { | |
297 | if ($subother) { | |
298 | if ($othercollection ne $subother) { | |
299 | $pure = 0; | |
300 | } | |
301 | } | |
302 | } elsif ($subother) { | |
303 | $othercollection = $subother; | |
304 | } | |
305 | } else { | |
306 | $pure = 0; | |
307 | } | |
308 | } | |
309 | } else { | |
310 | $pure = 0; | |
311 | } | |
312 | } | |
313 | # This directory was an initially empty directory therefore | |
314 | # We do not remove it. | |
315 | $pure = 0 if $empty; | |
316 | if ((!$pure || !$targetdir) && @puresubdirs) { | |
317 | &CoalesceTrees($targetdir, $stow, @puresubdirs); | |
318 | } | |
319 | ($pure, $othercollection); | |
320 | } | |
321 | ||
322 | sub CoalesceTrees { | |
323 | local($parent, $stow, @trees) = @_; | |
324 | local($tree, $collection, $x); | |
325 | ||
326 | foreach $x (@trees) { | |
327 | ($tree, $collection) = ($x =~ /^(.*)\/(.*)/); | |
328 | &EmptyTree(&JoinPaths($Target, $parent, $tree)); | |
329 | &DoRmdir(&JoinPaths($Target, $parent, $tree)); | |
330 | if ($collection) { | |
331 | &DoLink(&JoinPaths($stow, $collection, $parent, $tree), | |
332 | &JoinPaths($Target, $parent, $tree)); | |
333 | } | |
334 | } | |
335 | } | |
336 | ||
337 | sub EmptyTree { | |
338 | local($dir) = @_; | |
339 | local(@contents); | |
340 | local($content); | |
341 | ||
342 | opendir(DIR, $dir) | |
343 | || die "$ProgramName: Cannot read directory \"$dir\" ($!)\n"; | |
344 | @contents = readdir(DIR); | |
345 | closedir(DIR); | |
346 | foreach $content (@contents) { | |
347 | next if (($content eq '.') || ($content eq '..')); | |
348 | if (-l &JoinPaths($dir, $content)) { | |
349 | &DoUnlink(&JoinPaths($dir, $content)); | |
350 | } elsif (-d &JoinPaths($dir, $content)) { | |
351 | &EmptyTree(&JoinPaths($dir, $content)); | |
352 | &DoRmdir(&JoinPaths($dir, $content)); | |
353 | } else { | |
354 | &DoUnlink(&JoinPaths($dir, $content)); | |
355 | } | |
356 | } | |
357 | } | |
358 | ||
359 | sub StowContents { | |
360 | local($dir, $stow) = @_; | |
361 | local(@contents); | |
362 | local($content); | |
363 | ||
364 | warn "Stowing contents of $dir\n" if ($Verbose > 1); | |
365 | opendir(DIR, &JoinPaths($Stow, $dir)) | |
366 | || die "$ProgramName: Cannot read directory \"$dir\" ($!)\n"; | |
367 | @contents = readdir(DIR); | |
368 | closedir(DIR); | |
369 | foreach $content (@contents) { | |
370 | next if (($content eq '.') || ($content eq '..')); | |
371 | if (-d &JoinPaths($Stow, $dir, $content)) { | |
372 | &StowDir(&JoinPaths($dir, $content), $stow); | |
373 | } else { | |
374 | &StowNondir(&JoinPaths($dir, $content), $stow); | |
375 | } | |
376 | } | |
377 | } | |
378 | ||
379 | sub StowDir { | |
380 | local($dir, $stow) = @_; | |
381 | local(@dir) = split(/\/+/, $dir); | |
382 | local($collection) = shift(@dir); | |
383 | local($subdir) = join('/', @dir); | |
384 | local($linktarget, $stowsubdir); | |
385 | ||
386 | warn "Stowing directory $dir\n" if ($Verbose > 1); | |
387 | if (-l &JoinPaths($Target, $subdir)) { | |
388 | ($linktarget = readlink(&JoinPaths($Target, $subdir))) | |
389 | || die sprintf("%s: Could not read link %s (%s)\n", | |
390 | $ProgramName, | |
391 | &JoinPaths($Target, $subdir), | |
392 | $!); | |
393 | ($stowsubdir = | |
394 | &FindStowMember(sprintf('%s/%s', $Target, | |
395 | join('/', @dir[0..($#dir - 1)])), | |
396 | $linktarget)) | |
397 | || (&Conflict($dir, $subdir), return); | |
398 | if (-e &JoinPaths($Stow, $stowsubdir)) { | |
399 | if ($stowsubdir eq $dir) { | |
400 | warn sprintf("%s already points to %s\n", | |
401 | &JoinPaths($Target, $subdir), | |
402 | &JoinPaths($Stow, $dir)) | |
403 | if ($Verbose > 2); | |
404 | return; | |
405 | } | |
406 | if (-d &JoinPaths($Stow, $stowsubdir)) { | |
407 | &DoUnlink(&JoinPaths($Target, $subdir)); | |
408 | &DoMkdir(&JoinPaths($Target, $subdir)); | |
409 | &StowContents($stowsubdir, &JoinPaths('..', $stow)); | |
410 | &StowContents($dir, &JoinPaths('..', $stow)); | |
411 | } else { | |
412 | (&Conflict($dir, $subdir), return); | |
413 | } | |
414 | } else { | |
415 | &DoUnlink(&JoinPaths($Target, $subdir)); | |
416 | &StowNewDir($dir, $stow); | |
417 | } | |
418 | } elsif (-e &JoinPaths($Target, $subdir)) { | |
419 | if (-d &JoinPaths($Target, $subdir)) { | |
420 | &StowContents($dir, &JoinPaths('..', $stow)); | |
421 | } else { | |
422 | &Conflict($dir, $subdir); | |
423 | } | |
424 | } else { | |
425 | &StowNewDir($dir, $stow); | |
426 | } | |
427 | } | |
428 | ||
429 | sub StowNewDir { | |
430 | local($dir, $stow) = @_; | |
431 | if (-e &JoinPaths($Stow, $dir, '.dontfold')) { | |
432 | &DoMkdir(&JoinPaths($Target, $subdir)); | |
433 | &StowContents($dir, &JoinPaths('..', $stow)); | |
434 | } else { | |
435 | &DoLink(&JoinPaths($stow, $dir), | |
436 | &JoinPaths($Target, $subdir)); | |
437 | } | |
438 | } | |
439 | ||
440 | sub StowNondir { | |
441 | local($file, $stow) = @_; | |
442 | local(@file) = split(/\/+/, $file); | |
443 | local($collection) = shift(@file); | |
444 | local($subfile) = join('/', @file); | |
445 | local($linktarget, $stowsubfile); | |
446 | ||
447 | if (-l &JoinPaths($Target, $subfile)) { | |
448 | ($linktarget = readlink(&JoinPaths($Target, $subfile))) | |
449 | || die sprintf("%s: Could not read link %s (%s)\n", | |
450 | $ProgramName, | |
451 | &JoinPaths($Target, $subfile), | |
452 | $!); | |
453 | ($stowsubfile = | |
454 | &FindStowMember(sprintf('%s/%s', $Target, | |
455 | join('/', @file[0..($#file - 1)])), | |
456 | $linktarget)) | |
457 | || (&Conflict($file, $subfile), return); | |
458 | if (-e &JoinPaths($Stow, $stowsubfile)) { | |
459 | (&Conflict($file, $subfile), return) | |
460 | unless ($stowsubfile eq $file); | |
461 | warn sprintf("%s already points to %s\n", | |
462 | &JoinPaths($Target, $subfile), | |
463 | &JoinPaths($Stow, $file)) | |
464 | if ($Verbose > 2); | |
465 | } else { | |
466 | &DoUnlink(&JoinPaths($Target, $subfile)); | |
467 | &DoLink(&JoinPaths($stow, $file), | |
468 | &JoinPaths($Target, $subfile)); | |
469 | } | |
470 | } elsif (-e &JoinPaths($Target, $subfile)) { | |
471 | &Conflict($file, $subfile); | |
472 | } else { | |
473 | &DoLink(&JoinPaths($stow, $file), | |
474 | &JoinPaths($Target, $subfile)); | |
475 | } | |
476 | } | |
477 | ||
478 | sub DoUnlink { | |
479 | local($file) = @_; | |
480 | ||
481 | warn "UNLINK $file\n" if $Verbose; | |
482 | (unlink($file) || die "$ProgramName: Could not unlink $file ($!)\n") | |
483 | unless $NotReally; | |
484 | } | |
485 | ||
486 | sub DoRmdir { | |
487 | local($dir) = @_; | |
488 | ||
489 | warn "RMDIR $dir\n" if $Verbose; | |
490 | (rmdir($dir) || die "$ProgramName: Could not rmdir $dir ($!)\n") | |
491 | unless $NotReally; | |
492 | } | |
493 | ||
494 | sub DoLink { | |
495 | local($target, $name) = @_; | |
496 | ||
497 | warn "LINK $name to $target\n" if $Verbose; | |
498 | (symlink($target, $name) || | |
499 | die "$ProgramName: Could not symlink $name to $target ($!)\n") | |
500 | unless $NotReally; | |
501 | } | |
502 | ||
503 | sub DoMkdir { | |
504 | local($dir) = @_; | |
505 | ||
506 | warn "MKDIR $dir\n" if $Verbose; | |
507 | (mkdir($dir, 0777) | |
508 | || die "$ProgramName: Could not make directory $dir ($!)\n") | |
509 | unless $NotReally; | |
510 | } | |
511 | ||
512 | sub Conflict { | |
513 | local($a, $b) = @_; | |
514 | ||
515 | if ($Conflicts) { | |
516 | warn sprintf("CONFLICT: %s vs. %s\n", &JoinPaths($Stow, $a), | |
517 | &JoinPaths($Target, $b)); | |
518 | } else { | |
519 | die sprintf("%s: CONFLICT: %s vs. %s\n", | |
520 | $ProgramName, | |
521 | &JoinPaths($Stow, $a), | |
522 | &JoinPaths($Target, $b)); | |
523 | } | |
524 | } | |
525 | ||
526 | sub FindStowMember { | |
527 | local($start, $path) = @_; | |
528 | local(@x) = split(/\/+/, $start); | |
529 | local(@path) = split(/\/+/, $path); | |
530 | local($x); | |
531 | local(@d) = split(/\/+/, $Stow); | |
532 | ||
533 | while (@path) { | |
534 | $x = shift(@path); | |
535 | if ($x eq '..') { | |
536 | pop(@x); | |
537 | return '' unless @x; | |
538 | } elsif ($x) { | |
539 | push(@x, $x); | |
540 | } | |
541 | } | |
542 | while (@x && @d) { | |
543 | if (($x = shift(@x)) ne shift(@d)) { | |
544 | return ''; | |
545 | } | |
546 | } | |
547 | return '' if @d; | |
548 | join('/', @x); | |
549 | } | |
550 | ||
551 | sub RunPoststowScripts { | |
552 | local(@scripts); | |
553 | local($script); | |
554 | local($psd) = &JoinPaths($Target, 'poststow.d'); | |
555 | ||
556 | if (opendir(PSD, $psd)) { | |
557 | # good | |
558 | } elsif ($! eq 'No such file or directory') { | |
559 | # it doesn't exist, skip this step | |
560 | warn "Poststow script directory does not exist\n" if $Verbose; | |
561 | return; | |
562 | } else { | |
563 | die "$ProgramName: Cannot read poststow script directory ($!)\n"; | |
564 | } | |
565 | warn "Running poststow scripts...\n" if $Verbose; | |
566 | @scripts = readdir(PSD); # XXX Should we define the order? | |
567 | closedir(PSD); | |
568 | foreach $script (@scripts) { | |
569 | next if ($script =~ m/^\./); # catches '.', '..', '.dontfold', and maybe others | |
570 | warn "Running poststow script '$script'...\n" if $Verbose; | |
571 | system(&JoinPaths($psd, $script), $Target) == 0 or | |
572 | warn "Poststow script '$script' failed\n"; | |
573 | } | |
574 | } | |
575 | ||
576 | sub parent { | |
577 | local($path) = join('/', @_); | |
578 | local(@elts) = split(/\/+/, $path); | |
579 | pop(@elts); | |
580 | join('/', @elts); | |
581 | } | |
582 | ||
583 | sub usage { | |
584 | local($msg) = shift; | |
585 | ||
586 | if ($msg) { | |
587 | print "$ProgramName: $msg\n"; | |
588 | } | |
589 | print "$ProgramName (GNU Stow) version $Version\n\n"; | |
590 | print "Usage: $ProgramName [OPTION ...] PACKAGE ...\n"; | |
591 | print <<EOT; | |
592 | -n, --no Do not actually make changes | |
593 | -c, --conflicts Scan for conflicts, implies -n | |
594 | -d DIR, --dir=DIR Set stow dir to DIR (default is current dir) | |
595 | -t DIR, --target=DIR Set target to DIR (default is parent of stow dir) | |
596 | -v, --verbose[=N] Increase verboseness (levels are 0,1,2,3; | |
597 | -v or --verbose adds 1; --verbose=N sets level) | |
598 | -D, --delete Unstow instead of stow | |
599 | -R, --restow Restow (like stow -D followed by stow) | |
600 | --poststow-only Run poststow scripts without (un)stowing any packages | |
601 | -V, --version Show Stow version number | |
602 | -h, --help Show this help | |
603 | EOT | |
604 | exit($msg ? 1 : 0); | |
605 | } | |
606 | ||
607 | sub version { | |
608 | print "$ProgramName (GNU Stow) version $Version\n"; | |
609 | exit(0); | |
610 | } | |
611 | ||
612 | # Local variables: | |
613 | # mode: perl | |
614 | # End: |