source: main/trunk/greenstone2/perllib/util.pm@ 29794

Last change on this file since 29794 was 29794, checked in by kjdon, 9 years ago

trying to get a proper unicode version of the filename. Need to convert to long windows filenames if on windows, decode any %XX url codes, need to change to composed form if on macs
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File size: 59.9 KB
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1###########################################################################
2#
3# util.pm -- various useful utilities
4# A component of the Greenstone digital library software
5# from the New Zealand Digital Library Project at the
6# University of Waikato, New Zealand.
7#
8# Copyright (C) 1999 New Zealand Digital Library Project
9#
10# This program is free software; you can redistribute it and/or modify
11# it under the terms of the GNU General Public License as published by
12# the Free Software Foundation; either version 2 of the License, or
13# (at your option) any later version.
14#
15# This program is distributed in the hope that it will be useful,
16# but WITHOUT ANY WARRANTY; without even the implied warranty of
17# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18# GNU General Public License for more details.
19#
20# You should have received a copy of the GNU General Public License
21# along with this program; if not, write to the Free Software
22# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23#
24###########################################################################
25
26package util;
27
28use strict;
29use FileUtils;
30
31use Encode;
32use File::Copy;
33use File::Basename;
34# Config for getting the perlpath in the recommended way, though it uses paths that are
35# hard-coded into the Config file that's generated upon configuring and compiling perl.
36# $^X works better in some cases to return the path to perl used to launch the script,
37# but if launched with plain "perl" (no full-path), that will be just what it returns.
38use Config;
39# New module for file related utility functions - intended as a
40# placeholder for an extension that allows a variety of different
41# filesystems (FTP, HTTP, SAMBA, WEBDav, HDFS etc)
42use FileUtils;
43
44if ($ENV{'GSDLOS'} =~ /^windows$/i) {
45 require Win32; # for working out Windows Long Filenames from Win 8.3 short filenames
46}
47
48# removes files (but not directories)
49sub rm {
50 warnings::warnif("deprecated", "util::rm() is deprecated, using FileUtils::removeFiles() instead");
51 return &FileUtils::removeFiles(@_);
52}
53
54# recursive removal
55sub filtered_rm_r {
56 warnings::warnif("deprecated", "util::filtered_rm_r() is deprecated, using FileUtils::removeFilesFiltered() instead");
57 return &FileUtils::removeFilesFiltered(@_);
58}
59
60# recursive removal
61sub rm_r {
62 warnings::warnif("deprecated", "util::rm_r() is deprecated, using FileUtils::removeFilesRecursive() instead");
63 return &FileUtils::removeFilesRecursive(@_);
64}
65
66# moves a file or a group of files
67sub mv {
68 warnings::warnif("deprecated", "util::mv() is deprecated, using FileUtils::moveFiles() instead");
69 return &FileUtils::moveFiles(@_);
70}
71
72# Move the contents of source directory into target directory
73# (as opposed to merely replacing target dir with the src dir)
74# This can overwrite any files with duplicate names in the target
75# but other files and folders in the target will continue to exist
76sub mv_dir_contents {
77 warnings::warnif("deprecated", "util::mv_dir_contents() is deprecated, using FileUtils::moveDirectoryContents() instead");
78 return &FileUtils::moveDirectoryContents(@_);
79}
80
81# copies a file or a group of files
82sub cp {
83 warnings::warnif("deprecated", "util::cp() is deprecated, using FileUtils::copyFiles() instead");
84 return &FileUtils::copyFiles(@_);
85}
86
87# recursively copies a file or group of files
88# syntax: cp_r (sourcefiles, destination directory)
89# destination must be a directory - to copy one file to
90# another use cp instead
91sub cp_r {
92 warnings::warnif("deprecated", "util::cp_r() is deprecated, using FileUtils::copyFilesrecursive() instead");
93 return &FileUtils::copyFilesRecursive(@_);
94}
95
96# recursively copies a file or group of files
97# syntax: cp_r (sourcefiles, destination directory)
98# destination must be a directory - to copy one file to
99# another use cp instead
100sub cp_r_nosvn {
101 warnings::warnif("deprecated", "util::cp_r_nosvn() is deprecated, using FileUtils::copyFilesRecursiveNoSVN() instead");
102 return &FileUtils::copyFilesRecursiveNoSVN(@_);
103}
104
105# copies a directory and its contents, excluding subdirectories, into a new directory
106sub cp_r_toplevel {
107 warnings::warnif("deprecated", "util::cp_r_toplevel() is deprecated, using FileUtils::recursiveCopyTopLevel() instead");
108 return &FileUtils::recursiveCopyTopLevel(@_);
109}
110
111sub mk_dir {
112 warnings::warnif("deprecated", "util::mk_dir() is deprecated, using FileUtils::makeDirectory() instead");
113 return &FileUtils::makeDirectory(@_);
114}
115
116# in case anyone cares - I did some testing (using perls Benchmark module)
117# on this subroutine against File::Path::mkpath (). mk_all_dir() is apparently
118# slightly faster (surprisingly) - Stefan.
119sub mk_all_dir {
120 warnings::warnif("deprecated", "util::mk_all_dir() is deprecated, using FileUtils::makeAllDirectories() instead");
121 return &FileUtils::makeAllDirectories(@_);
122}
123
124# make hard link to file if supported by OS, otherwise copy the file
125sub hard_link {
126 warnings::warnif("deprecated", "util::hard_link() is deprecated, using FileUtils::hardLink() instead");
127 return &FileUtils::hardLink(@_);
128}
129
130# make soft link to file if supported by OS, otherwise copy file
131sub soft_link {
132 warnings::warnif("deprecated", "util::soft_link() is deprecated, using FileUtils::softLink() instead");
133 return &FileUtils::softLink(@_);
134}
135
136# Primarily for filenames generated by processing
137# content of HTML files (which are mapped to UTF-8 internally)
138#
139# To turn this into an octet string that really exists on the file
140# system:
141# 1. don't need to do anything special for Unix-based systems
142# (as underlying file system is byte-code)
143# 2. need to map to short DOS filenames for Windows
144
145sub utf8_to_real_filename
146{
147 my ($utf8_filename) = @_;
148
149 my $real_filename;
150
151 if (($ENV{'GSDLOS'} =~ m/^windows$/i) && ($^O ne "cygwin")) {
152 require Win32;
153
154 print STDERR "***** utf8 filename = $utf8_filename\n\n\n";
155
156 my $unicode_filename = decode("utf8",$utf8_filename);
157 $real_filename = Win32::GetShortPathName($unicode_filename);
158 }
159 else {
160 $real_filename = $utf8_filename;
161 }
162
163 return $real_filename;
164}
165
166sub raw_filename_to_unicode
167{
168 my ($directory, $raw_file) = @_;
169
170 my $unicode_filename = &util::get_dirsep_tail(&util::upgrade_if_dos_filename(&FileUtils::filenameConcatenate($directory, $raw_file), 1));
171 $unicode_filename = &Encode::decode("utf8", $unicode_filename);
172 #$unicode_filename = &Encode::decode(locale => $unicode_filename);
173
174 #Does the filenaem have url encoded chars in it?
175 if (&unicode::is_url_encoded($unicode_filename)) {
176 $unicode_filename = &unicode::url_decode($unicode_filename);
177 }
178 print STDERR "after url decoding: $unicode_filename\n";
179 # Normalise the filename to canonical composition - on mac, filenames use decopmposed form for accented chars
180 if ($ENV{'GSDLOS'} =~ m/^darwin$/i) {
181 $unicode_filename = normalize('C', $unicode_filename); # Composed form 'C'
182 }
183 return $unicode_filename;
184
185}
186sub fd_exists {
187 warnings::warnif("deprecated", "util::fd_exists() is deprecated, using FileUtils::fileTest() instead");
188 return &FileUtils::fileTest(@_);
189}
190
191sub file_exists {
192 warnings::warnif("deprecated", "util::file_exists() is deprecated, using FileUtils::fileExists() instead");
193 return &FileUtils::fileExists(@_);
194}
195
196sub dir_exists {
197 warnings::warnif("deprecated", "util::dir_exists() is deprecated, using FileUtils::directoryExists() instead");
198 return &FileUtils::directoryExists(@_);
199}
200
201# updates a copy of a directory in some other part of the filesystem
202# verbosity settings are: 0=low, 1=normal, 2=high
203# both $fromdir and $todir should be absolute paths
204sub cachedir {
205 warnings::warnif("deprecated", "util::cachedir() is deprecated, using FileUtils::synchronizeDirectories() instead");
206 return &FileUtils::synchronizeDirectories(@_);
207}
208
209# this function returns -1 if either file is not found
210# assumes that $file1 and $file2 are absolute file names or
211# in the current directory
212# $file2 is allowed to be newer than $file1
213sub differentfiles {
214 warnings::warnif("deprecated", "util::differentfiles() is deprecated, using FileUtils::differentFiles() instead");
215 return &FileUtils::differentFiles(@_);
216}
217
218
219sub get_tmp_filename
220{
221 my $file_ext = shift(@_) || undef;
222
223 my $opt_dot_file_ext = "";
224 if (defined $file_ext) {
225 if ($file_ext !~ m/\./) {
226 # no dot, so needs one added in at start
227 $opt_dot_file_ext = ".$file_ext"
228 }
229 else {
230 # allow for "extensions" such as _metadata.txt to be handled
231 # gracefully
232 $opt_dot_file_ext = $file_ext;
233 }
234 }
235
236 my $tmpdir = &FileUtils::filenameConcatenate($ENV{'GSDLHOME'}, "tmp");
237 &FileUtils::makeAllDirectories ($tmpdir) unless -e $tmpdir;
238
239 my $count = 1000;
240 my $rand = int(rand $count);
241 my $full_tmp_filename = &FileUtils::filenameConcatenate($tmpdir, "F$rand$opt_dot_file_ext");
242
243 while (-e $full_tmp_filename) {
244 $rand = int(rand $count);
245 $full_tmp_filename = &FileUtils::filenameConcatenate($tmpdir, "F$rand$opt_dot_file_ext");
246 $count++;
247 }
248
249 return $full_tmp_filename;
250}
251
252# These 2 are "static" variables used by the get_timestamped_tmp_folder() subroutine below and
253# belong with that function. They help ensure the timestamped tmp folders generated are unique.
254my $previous_timestamp = undef;
255my $previous_timestamp_f = 0; # frequency
256
257sub get_timestamped_tmp_folder
258{
259
260 my $tmp_dirname;
261 if(defined $ENV{'GSDLCOLLECTDIR'}) {
262 $tmp_dirname = $ENV{'GSDLCOLLECTDIR'};
263 } elsif(defined $ENV{'GSDLHOME'}) {
264 $tmp_dirname = $ENV{'GSDLHOME'};
265 } else {
266 return undef;
267 }
268
269 $tmp_dirname = &FileUtils::filenameConcatenate($tmp_dirname, "tmp");
270 &FileUtils::makeDirectory($tmp_dirname) if (!-e $tmp_dirname);
271
272 # add the timestamp into the path otherwise we can run into problems
273 # if documents have the same name
274 my $timestamp = time;
275
276 if (!defined $previous_timestamp || ($timestamp > $previous_timestamp)) {
277 $previous_timestamp_f = 0;
278 $previous_timestamp = $timestamp;
279 } else {
280 $previous_timestamp_f++;
281 }
282
283 my $time_tmp_dirname = &FileUtils::filenameConcatenate($tmp_dirname, $timestamp);
284 $tmp_dirname = $time_tmp_dirname;
285 my $i = $previous_timestamp_f;
286
287 if($previous_timestamp_f > 0) {
288 $tmp_dirname = $time_tmp_dirname."_".$i;
289 $i++;
290 }
291 while (-e $tmp_dirname) {
292 $tmp_dirname = $time_tmp_dirname."_".$i;
293 $i++;
294 }
295 &FileUtils::makeDirectory($tmp_dirname);
296
297 return $tmp_dirname;
298}
299
300sub get_timestamped_tmp_filename_in_collection
301{
302
303 my ($input_filename, $output_ext) = @_;
304 # derive tmp filename from input filename
305 my ($tailname, $dirname, $suffix)
306 = &File::Basename::fileparse($input_filename, "\\.[^\\.]+\$");
307
308 # softlink to collection tmp dir
309 my $tmp_dirname = &util::get_timestamped_tmp_folder();
310 $tmp_dirname = $dirname unless defined $tmp_dirname;
311
312 # following two steps copied from ConvertBinaryFile
313 # do we need them?? can't use them as is, as they use plugin methods.
314
315 #$tailname = $self->SUPER::filepath_to_utf8($tailname) unless &unicode::check_is_utf8($tailname);
316
317 # URLEncode this since htmls with images where the html filename is utf8 don't seem
318 # to work on Windows (IE or Firefox), as browsers are looking for filesystem-encoded
319 # files on the filesystem.
320 #$tailname = &util::rename_file($tailname, $self->{'file_rename_method'}, "without_suffix");
321 if (defined $output_ext) {
322 $output_ext = ".$output_ext"; # add the dot
323 } else {
324 $output_ext = $suffix;
325 }
326 $output_ext= lc($output_ext);
327 my $tmp_filename = &FileUtils::filenameConcatenate($tmp_dirname, "$tailname$output_ext");
328
329 return $tmp_filename;
330}
331
332sub get_toplevel_tmp_dir
333{
334 return &FileUtils::filenameConcatenate($ENV{'GSDLHOME'}, "tmp");
335}
336
337
338sub get_collectlevel_tmp_dir
339{
340 my $tmp_dirname = &FileUtils::filenameConcatenate($ENV{'GSDLCOLLECTDIR'}, "tmp");
341 &FileUtils::makeDirectory($tmp_dirname) if (!-e $tmp_dirname);
342
343 return $tmp_dirname;
344}
345
346
347sub filename_to_regex {
348 my $filename = shift (@_);
349
350 # need to make single backslashes double so that regex works
351 $filename =~ s/\\/\\\\/g; # if ($ENV{'GSDLOS'} =~ /^windows$/i);
352
353 # note that the first part of a substitution is a regex, so RE chars need to be escaped,
354 # the second part of a substitution is not a regex, so for e.g. full-stop can be specified literally
355 $filename =~ s/\./\\./g; # in case there are extensions/other full stops, escape them
356 $filename =~ s@\(@\\(@g; # escape brackets
357 $filename =~ s@\)@\\)@g; # escape brackets
358 $filename =~ s@\[@\\[@g; # escape brackets
359 $filename =~ s@\]@\\]@g; # escape brackets
360
361 return $filename;
362}
363
364sub unregex_filename {
365 my $filename = shift (@_);
366
367 # need to put doubled backslashes for regex back to single
368 $filename =~ s/\\\./\./g; # remove RE syntax for .
369 $filename =~ s@\\\(@(@g; # remove RE syntax for ( => "\(" turns into "("
370 $filename =~ s@\\\)@)@g; # remove RE syntax for ) => "\)" turns into ")"
371 $filename =~ s@\\\[@[@g; # remove RE syntax for [ => "\[" turns into "["
372 $filename =~ s@\\\]@]@g; # remove RE syntax for ] => "\]" turns into "]"
373
374 # \\ goes to \
375 # This is the last step in reverse mirroring the order of steps in filename_to_regex()
376 $filename =~ s/\\\\/\\/g; # remove RE syntax for \
377 return $filename;
378}
379
380sub filename_cat {
381 # I've disabled this warning for now, as every Greenstone perl
382 # script seems to make use of this function and so you drown in a
383 # sea of deprecated warnings [jmt12]
384# warnings::warnif("deprecated", "util::filename_cat() is deprecated, using FileUtils::filenameConcatenate() instead");
385 return &FileUtils::filenameConcatenate(@_);
386}
387
388
389sub _pathname_cat {
390 my $join_char = shift(@_);
391 my $first_path = shift(@_);
392 my (@pathnames) = @_;
393
394 # If first_path is not null or empty, then add it back into the list
395 if (defined $first_path && $first_path =~ /\S/) {
396 unshift(@pathnames, $first_path);
397 }
398
399 my $pathname = join($join_char, @pathnames);
400
401 # remove duplicate slashes
402 if ($join_char eq ";") {
403 $pathname =~ s/[\\\/]+/\\/g;
404 if ($^O eq "cygwin") {
405 # Once we've collapsed muliple (potentialy > 2) slashes
406 # For cygwin, actually want things double-backslahed
407 $pathname =~ s/\\/\\\\/g;
408 }
409
410 } else {
411 $pathname =~ s/[\/]+/\//g;
412 # DB: want a pathname abc\de.html to remain like this
413 }
414
415 return $pathname;
416}
417
418
419sub pathname_cat {
420 my (@pathnames) = @_;
421
422 my $join_char;
423 if (($ENV{'GSDLOS'} =~ /^windows$/i) && ($^O ne "cygwin")) {
424 $join_char = ";";
425 } else {
426 $join_char = ":";
427 }
428 return _pathname_cat($join_char,@pathnames);
429}
430
431
432sub javapathname_cat {
433 my (@pathnames) = @_;
434
435 my $join_char;
436
437 # Unlike pathname_cat() above, not interested if running in a Cygwin environment
438 # This is because the java we run is actually a native Windows executable
439
440 if (($ENV{'GSDLOS'} =~ /^windows$/i)) {
441 $join_char = ";";
442 } else {
443 $join_char = ":";
444 }
445 return _pathname_cat($join_char,@pathnames);
446}
447
448
449sub makeFilenameJavaCygwinCompatible
450{
451 my ($java_filename) = @_;
452
453 if ($^O eq "cygwin") {
454 # To be used with a Java program, but under Cygwin
455 # Because the java binary that is native to Windows, need to
456 # convert the Cygwin paths (i.e. Unix style) to be Windows
457 # compatible
458
459 $java_filename = `cygpath -wp "$java_filename"`;
460 chomp($java_filename);
461 $java_filename =~ s%\\%\\\\%g;
462 }
463
464 return $java_filename;
465}
466
467sub tidy_up_oid {
468 my ($OID) = @_;
469 if ($OID =~ /[\.\/\\]/) {
470 print STDERR "Warning, identifier $OID contains periods or slashes(.\\\/), replacing them with _\n";
471 $OID =~ s/[\.\\\/]/_/g; #remove any periods
472 }
473 if ($OID =~ /^\s.*\s$/) {
474 print STDERR "Warning, identifier $OID starts or ends with whitespace. Removing it\n";
475 # remove starting and trailing whitespace
476 $OID =~ s/^\s+//;
477 $OID =~ s/\s+$//;
478 }
479 if ($OID =~ /^[\d]*$/) {
480 print STDERR "Warning, identifier $OID contains only digits. Prepending 'D'.\n";
481 $OID = "D" . $OID;
482 }
483
484 return $OID;
485}
486
487sub envvar_prepend {
488 my ($var,$val) = @_;
489
490 # 64 bit linux can't handle ";" as path separator, so make sure to set this to the right one for the OS
491## my $pathsep = (defined $ENV{'GSDLOS'} && $ENV{'GSDLOS'} !~ m/windows/) ? ":" : ";";
492
493 # Rewritten above to make ":" the default (Windows is the special
494 # case, anything else 'unusual' such as Solaris etc is Unix)
495 my $pathsep = (defined $ENV{'GSDLOS'} && (($ENV{'GSDLOS'} =~ m/windows/) && ($^O ne "cygwin"))) ? ";" : ":";
496
497 # do not prepend any value/path that's already in the environment variable
498
499 my $escaped_val = &filename_to_regex($val); # escape any backslashes and brackets for upcoming regex
500 if (!defined($ENV{$var})) {
501 $ENV{$var} = "$val";
502 }
503 elsif($ENV{$var} !~ m/$escaped_val/) {
504 $ENV{$var} = "$val".$pathsep.$ENV{$var};
505 }
506}
507
508sub envvar_append {
509 my ($var,$val) = @_;
510
511 # 64 bit linux can't handle ";" as path separator, so make sure to set this to the right one for the OS
512 my $pathsep = (defined $ENV{'GSDLOS'} && $ENV{'GSDLOS'} !~ m/windows/) ? ":" : ";";
513
514 # do not append any value/path that's already in the environment variable
515
516 my $escaped_val = &filename_to_regex($val); # escape any backslashes and brackets for upcoming regex
517 if (!defined($ENV{$var})) {
518 $ENV{$var} = "$val";
519 }
520 elsif($ENV{$var} !~ m/$escaped_val/) {
521 $ENV{$var} = $ENV{$var}.$pathsep."$val";
522 }
523}
524
525
526
527# splits a filename into a prefix and a tail extension using the tail_re, or
528# if that fails, splits on the file_extension . (dot)
529sub get_prefix_and_tail_by_regex {
530
531 my ($filename,$tail_re) = @_;
532
533 my ($file_prefix,$file_ext) = ($filename =~ m/^(.*?)($tail_re)$/);
534 if ((!defined $file_prefix) || (!defined $file_ext)) {
535 ($file_prefix,$file_ext) = ($filename =~ m/^(.*)(\..*?)$/);
536 }
537
538 return ($file_prefix,$file_ext);
539}
540
541# get full path and file only path from a base_dir (which may be empty) and
542# file (which may contain directories)
543sub get_full_filenames {
544 my ($base_dir, $file) = @_;
545
546# my ($cpackage,$cfilename,$cline,$csubr,$chas_args,$cwantarray) = caller(0);
547# my ($lcfilename) = ($cfilename =~ m/([^\\\/]*)$/);
548# print STDERR "** Calling method: $lcfilename:$cline $cpackage->$csubr\n";
549
550
551 my $filename_full_path = $file;
552 # add on directory if present
553 $filename_full_path = &FileUtils::filenameConcatenate($base_dir, $file) if $base_dir =~ /\S/;
554
555 my $filename_no_path = $file;
556
557 # remove directory if present
558 $filename_no_path =~ s/^.*[\/\\]//;
559 return ($filename_full_path, $filename_no_path);
560}
561
562# returns the path of a file without the filename -- ie. the directory the file is in
563sub filename_head {
564 my $filename = shift(@_);
565
566 if (($ENV{'GSDLOS'} =~ /^windows$/i) && ($^O ne "cygwin")) {
567 $filename =~ s/[^\\\\]*$//;
568 }
569 else {
570 $filename =~ s/[^\\\/]*$//;
571 }
572
573 return $filename;
574}
575
576
577
578# returns 1 if filename1 and filename2 point to the same
579# file or directory
580sub filenames_equal {
581 my ($filename1, $filename2) = @_;
582
583 # use filename_cat to clean up trailing slashes and
584 # multiple slashes
585 $filename1 = &FileUtils::filenameConcatenate($filename1);
586 $filename2 = &FileUtils::filenameConcatenate($filename2);
587
588 # filenames not case sensitive on windows
589 if ($ENV{'GSDLOS'} =~ /^windows$/i) {
590 $filename1 =~ tr/[A-Z]/[a-z]/;
591 $filename2 =~ tr/[A-Z]/[a-z]/;
592 }
593 return 1 if $filename1 eq $filename2;
594 return 0;
595}
596
597# If filename is relative to within_dir, returns the relative path of filename to that directory
598# with slashes in the filename returned as they were in the original (absolute) filename.
599sub filename_within_directory
600{
601 my ($filename,$within_dir) = @_;
602
603 if ($within_dir !~ m/[\/\\]$/) {
604 my $dirsep = &util::get_dirsep();
605 $within_dir .= $dirsep;
606 }
607
608 $within_dir = &filename_to_regex($within_dir); # escape DOS style file separator and brackets
609 if ($filename =~ m/^$within_dir(.*)$/) {
610 $filename = $1;
611 }
612
613 return $filename;
614}
615
616# If filename is relative to within_dir, returns the relative path of filename to that directory in URL format.
617# Filename and within_dir can be any type of slashes, but will be compared as URLs (i.e. unix-style slashes).
618# The subpath returned will also be a URL type filename.
619sub filename_within_directory_url_format
620{
621 my ($filename,$within_dir) = @_;
622
623 # convert parameters only to / slashes if Windows
624
625 my $filename_urlformat = &filepath_to_url_format($filename);
626 my $within_dir_urlformat = &filepath_to_url_format($within_dir);
627
628 #if ($within_dir_urlformat !~ m/\/$/) {
629 # make sure directory ends with a slash
630 #$within_dir_urlformat .= "/";
631 #}
632
633 my $within_dir_urlformat_re = &filename_to_regex($within_dir_urlformat); # escape any special RE characters, such as brackets
634
635 #print STDERR "@@@@@ $filename_urlformat =~ $within_dir_urlformat_re\n";
636
637 # dir prefix may or may not end with a slash (this is discarded when extracting the sub-filepath)
638 if ($filename_urlformat =~ m/^$within_dir_urlformat_re(?:\/)*(.*)$/) {
639 $filename_urlformat = $1;
640 }
641
642 return $filename_urlformat;
643}
644
645# Convert parameter to use / slashes if Windows (if on Linux leave any \ as is,
646# since on Linux it doesn't represent a file separator but an escape char).
647sub filepath_to_url_format
648{
649 my ($filepath) = @_;
650 if (($ENV{'GSDLOS'} =~ /^windows$/i) && ($^O ne "cygwin")) {
651 # Only need to worry about Windows, as Unix style directories already in url-format
652 # Convert Windows style \ => /
653 $filepath =~ s@\\@/@g;
654 }
655 return $filepath;
656}
657
658# regex filepaths on windows may include \\ as path separator. Convert \\ to /
659sub filepath_regex_to_url_format
660{
661 my ($filepath) = @_;
662 if (($ENV{'GSDLOS'} =~ /^windows$/i) && ($^O ne "cygwin")) {
663 # Only need to worry about Windows, as Unix style directories already in url-format
664 # Convert Windows style \\ => /
665 $filepath =~ s@\\\\@/@g;
666 }
667 return $filepath;
668
669}
670
671# Like File::Basename::fileparse, but expects filepath in url format (ie only / slash for dirsep)
672# and ignores trailing /
673# returns (file, dirs) dirs will be empty if no subdirs
674sub url_fileparse
675{
676 my ($filepath) = @_;
677 # remove trailing /
678 $filepath =~ s@/$@@;
679 if ($filepath !~ m@/@) {
680 return ($filepath, "");
681 }
682 my ($dirs, $file) = $filepath =~ m@(.+/)([^/]+)@;
683 return ($file, $dirs);
684
685}
686
687
688sub filename_within_collection
689{
690 my ($filename) = @_;
691
692 my $collect_dir = $ENV{'GSDLCOLLECTDIR'};
693
694 if (defined $collect_dir) {
695
696 # if from within GSDLCOLLECTDIR, then remove directory prefix
697 # so source_filename is realative to it. This is done to aid
698 # portability, i.e. the collection can be moved to somewhere
699 # else on the file system and the archives directory will still
700 # work. This is needed, for example in the applet version of
701 # GLI where GSDLHOME/collect on the server will be different to
702 # the collect directory of the remove user. Of course,
703 # GSDLCOLLECTDIR subsequently needs to be put back on to turn
704 # it back into a full pathname.
705
706 $filename = filename_within_directory($filename,$collect_dir);
707 }
708
709 return $filename;
710}
711
712sub prettyprint_file
713{
714 my ($base_dir,$file,$gli) = @_;
715
716 my $filename_full_path = &FileUtils::filenameConcatenate($base_dir,$file);
717
718 if (($ENV{'GSDLOS'} =~ m/^windows$/i) && ($^O ne "cygwin")) {
719 require Win32;
720
721 # For some reason base_dir in the form c:/a/b/c
722 # This leads to confusion later on, so turn it back into
723 # the more usual Windows form
724 $base_dir =~ s/\//\\/g;
725 my $long_base_dir = Win32::GetLongPathName($base_dir);
726 my $long_full_path = Win32::GetLongPathName($filename_full_path);
727
728 $file = filename_within_directory($long_full_path,$long_base_dir);
729 $file = encode("utf8",$file) if ($gli);
730 }
731
732 return $file;
733}
734
735
736sub upgrade_if_dos_filename
737{
738 my ($filename_full_path,$and_encode) = @_;
739
740 if (($ENV{'GSDLOS'} =~ m/^windows$/i) && ($^O ne "cygwin")) {
741 # Ensure any DOS-like filename, such as test~1.txt, has been upgraded
742 # to its long (Windows) version
743 my $long_filename = Win32::GetLongPathName($filename_full_path);
744 if (defined $long_filename) {
745 $filename_full_path = $long_filename;
746 }
747 # Make sure initial drive letter is lower-case (to fit in with rest of Greenstone)
748 $filename_full_path =~ s/^(.):/\u$1:/;
749 if ((defined $and_encode) && ($and_encode)) {
750 $filename_full_path = encode("utf8",$filename_full_path);
751 }
752 }
753
754 return $filename_full_path;
755}
756
757
758sub downgrade_if_dos_filename
759{
760 my ($filename_full_path) = @_;
761
762 if (($ENV{'GSDLOS'} =~ m/^windows$/i) && ($^O ne "cygwin")) {
763 require Win32;
764
765 # Ensure the given long Windows filename is in a form that can
766 # be opened by Perl => convert it to a short DOS-like filename
767
768 my $short_filename = Win32::GetShortPathName($filename_full_path);
769 if (defined $short_filename) {
770 $filename_full_path = $short_filename;
771 }
772 # Make sure initial drive letter is lower-case (to fit in
773 # with rest of Greenstone)
774 $filename_full_path =~ s/^(.):/\u$1:/;
775 }
776
777 return $filename_full_path;
778}
779
780sub block_filename
781{
782 my ($block_hash,$filename) = @_;
783
784 if (($ENV{'GSDLOS'} =~ m/^windows$/) && ($^O ne "cygwin")) {
785
786 # lower case the entire thing, eg for cover.jpg when its actually cover.JPG
787 my $lower_filename = lc($filename);
788 $block_hash->{'file_blocks'}->{$lower_filename} = 1;
789# my $lower_drive = $filename;
790# $lower_drive =~ s/^([A-Z]):/\l$1:/i;
791
792# my $upper_drive = $filename;
793# $upper_drive =~ s/^([A-Z]):/\u$1:/i;
794#
795# $block_hash->{'file_blocks'}->{$lower_drive} = 1;
796# $block_hash->{'file_blocks'}->{$upper_drive} = 1;
797 }
798 else {
799 $block_hash->{'file_blocks'}->{$filename} = 1;
800 }
801}
802
803
804sub filename_is_absolute
805{
806 warnings::warnif("deprecated", "util::filename_is_absolute() is deprecated, using FileUtils::isFilenameAbsolute() instead");
807 return &FileUtils::isFilenameAbsolute(@_);
808}
809
810
811## @method make_absolute()
812#
813# Ensure the given file path is absolute in respect to the given base path.
814#
815# @param $base_dir A string denoting the base path the given dir must be
816# absolute to.
817# @param $dir The directory to be made absolute as a string. Note that the
818# dir may already be absolute, in which case it will remain
819# unchanged.
820# @return The now absolute form of the directory as a string.
821#
822# @author John Thompson, DL Consulting Ltd.
823# @copy 2006 DL Consulting Ltd.
824#
825#used in buildcol.pl, doesn't work for all cases --kjdon
826sub make_absolute {
827
828 my ($base_dir, $dir) = @_;
829### print STDERR "dir = $dir\n";
830 $dir =~ s/[\\\/]+/\//g;
831 $dir = $base_dir . "/$dir" unless ($dir =~ m|^(\w:)?/|);
832 $dir =~ s|^/tmp_mnt||;
833 1 while($dir =~ s|/[^/]*/\.\./|/|g);
834 $dir =~ s|/[.][.]?/|/|g;
835 $dir =~ tr|/|/|s;
836### print STDERR "dir = $dir\n";
837
838 return $dir;
839}
840## make_absolute() ##
841
842sub get_dirsep {
843
844 if (($ENV{'GSDLOS'} =~ /^windows$/i) && ($^O ne "cygwin")) {
845 return "\\";
846 } else {
847 return "\/";
848 }
849}
850
851sub get_os_dirsep {
852
853 if (($ENV{'GSDLOS'} =~ /^windows$/i) && ($^O ne "cygwin")) {
854 return "\\\\";
855 } else {
856 return "\\\/";
857 }
858}
859
860sub get_re_dirsep {
861
862 return "\\\\|\\\/";
863}
864
865
866sub get_dirsep_tail {
867 my ($filename) = @_;
868
869 # returns last part of directory or filename
870 # On unix e.g. a/b.d => b.d
871 # a/b/c => c
872
873 my $dirsep = get_re_dirsep();
874 my @dirs = split (/$dirsep/, $filename);
875 my $tail = pop @dirs;
876
877 # - caused problems under windows
878 #my ($tail) = ($filename =~ m/^(?:.*?$dirsep)?(.*?)$/);
879
880 return $tail;
881}
882
883
884# if this is running on windows we want binaries to end in
885# .exe, otherwise they don't have to end in any extension
886sub get_os_exe {
887 return ".exe" if (($ENV{'GSDLOS'} =~ /^windows$/i) && ($^O ne "cygwin"));
888 return "";
889}
890
891
892# test to see whether this is a big or little endian machine
893sub is_little_endian
894{
895 # To determine the name of the operating system, the variable $^O is a cheap alternative to pulling it out of the Config module;
896 # If it is a Macintosh machine (i.e. the Darwin operating system), regardless if it's running on the IBM power-pc cpu or the x86 Intel-based chip with a power-pc emulator running on top of it, it's big-endian
897 # Otherwise, it's little endian
898
899 #return 0 if $^O =~ /^darwin$/i;
900 #return 0 if $ENV{'GSDLOS'} =~ /^darwin$/i;
901
902 # Going back to stating exactly whether the machine is little endian
903 # or big endian, without any special case for Macs. Since for rata it comes
904 # back with little endian and for shuttle with bigendian.
905 return (ord(substr(pack("s",1), 0, 1)) == 1);
906}
907
908
909# will return the collection name if successful, "" otherwise
910sub use_collection {
911 my ($collection, $collectdir) = @_;
912
913 if (!defined $collectdir || $collectdir eq "") {
914 $collectdir = &FileUtils::filenameConcatenate($ENV{'GSDLHOME'}, "collect");
915 }
916
917 if (!defined $ENV{'GREENSTONEHOME'}) { # for GS3, would have been defined in use_site_collection, to GSDL3HOME
918 $ENV{'GREENSTONEHOME'} = $ENV{'GSDLHOME'};
919 }
920
921 # get and check the collection
922 if (!defined($collection) || $collection eq "") {
923 if (defined $ENV{'GSDLCOLLECTION'}) {
924 $collection = $ENV{'GSDLCOLLECTION'};
925 } else {
926 print STDOUT "No collection specified\n";
927 return "";
928 }
929 }
930
931 if ($collection eq "modelcol") {
932 print STDOUT "You can't use modelcol.\n";
933 return "";
934 }
935
936 # make sure the environment variables GSDLCOLLECTION and GSDLCOLLECTDIR
937 # are defined
938 $ENV{'GSDLCOLLECTION'} = $collection;
939 $ENV{'GSDLCOLLECTHOME'} = $collectdir;
940 $ENV{'GSDLCOLLECTDIR'} = &FileUtils::filenameConcatenate($collectdir, $collection);
941
942 # make sure this collection exists
943 if (!-e $ENV{'GSDLCOLLECTDIR'}) {
944 print STDOUT "Invalid collection ($collection).\n";
945 return "";
946 }
947
948 # everything is ready to go
949 return $collection;
950}
951
952sub get_current_collection_name {
953 return $ENV{'GSDLCOLLECTION'};
954}
955
956
957# will return the collection name if successful, "" otherwise.
958# Like use_collection (above) but for greenstone 3 (taking account of site level)
959
960sub use_site_collection {
961 my ($site, $collection, $collectdir) = @_;
962
963 if (!defined $collectdir || $collectdir eq "") {
964 die "GSDL3HOME not set.\n" unless defined $ENV{'GSDL3HOME'};
965 $collectdir = &FileUtils::filenameConcatenate($ENV{'GSDL3HOME'}, "sites", $site, "collect");
966 }
967
968 if (defined $ENV{'GSDL3HOME'}) {
969 $ENV{'GREENSTONEHOME'} = $ENV{'GSDL3HOME'};
970 $ENV{'SITEHOME'} = &FileUtils::filenameConcatenate($ENV{'GREENSTONEHOME'}, "sites", $site);
971 } elsif (defined $ENV{'GSDL3SRCHOME'}) {
972 $ENV{'GREENSTONEHOME'} = &FileUtils::filenameConcatenate($ENV{'GSDL3SRCHOME'}, "web");
973 $ENV{'SITEHOME'} = &FileUtils::filenameConcatenate($ENV{'GREENSTONEHOME'}, "sites", $site);
974 } else {
975 print STDERR "*** util::use_site_collection(). Warning: Neither GSDL3HOME nor GSDL3SRCHOME set.\n";
976 }
977
978 # collectdir explicitly set by this point (using $site variable if required).
979 # Can call "old" gsdl2 use_collection now.
980
981 return use_collection($collection,$collectdir);
982}
983
984
985
986sub locate_config_file
987{
988 my ($file) = @_;
989
990 my $locations = locate_config_files($file);
991
992 return shift @$locations; # returns undef if 'locations' is empty
993}
994
995
996sub locate_config_files
997{
998 my ($file) = @_;
999
1000 my @locations = ();
1001
1002 if (-e $file) {
1003 # Clearly specified (most likely full filename)
1004 # No need to hunt in 'etc' directories, return value unchanged
1005 push(@locations,$file);
1006 }
1007 else {
1008 # Check for collection specific one before looking in global GSDL 'etc'
1009 if (defined $ENV{'GSDLCOLLECTDIR'} && $ENV{'GSDLCOLLECTDIR'} ne "") {
1010 my $test_collect_etc_filename
1011 = &FileUtils::filenameConcatenate($ENV{'GSDLCOLLECTDIR'},"etc", $file);
1012
1013 if (-e $test_collect_etc_filename) {
1014 push(@locations,$test_collect_etc_filename);
1015 }
1016 }
1017 my $test_main_etc_filename
1018 = &FileUtils::filenameConcatenate($ENV{'GSDLHOME'},"etc", $file);
1019 if (-e $test_main_etc_filename) {
1020 push(@locations,$test_main_etc_filename);
1021 }
1022 }
1023
1024 return \@locations;
1025}
1026
1027
1028sub hyperlink_text
1029{
1030 my ($text) = @_;
1031
1032 $text =~ s/(http:\/\/[^\s]+)/<a href=\"$1\">$1<\/a>/mg;
1033 $text =~ s/(^|\s+)(www\.(\w|\.)+)/<a href=\"http:\/\/$2\">$2<\/a>/mg;
1034
1035 return $text;
1036}
1037
1038
1039# A method to check if a directory is empty (note that an empty directory still has non-zero size!!!)
1040# Code is from http://episteme.arstechnica.com/eve/forums/a/tpc/f/6330927813/m/436007700831
1041sub is_dir_empty {
1042 warnings::warnif("deprecated", "util::is_dir_empty() is deprecated, using FileUtils::isDirectoryEmpty() instead");
1043 return &FileUtils::isDirectoryEmpty(@_);
1044}
1045
1046# Returns the given filename converted using either URL encoding or base64
1047# encoding, as specified by $rename_method. If the given filename has no suffix
1048# (if it is just the tailname), then $no_suffix should be some defined value.
1049# rename_method can be url, none, base64
1050sub rename_file {
1051 my ($filename, $rename_method, $no_suffix) = @_;
1052
1053 if(!$filename) { # undefined or empty string
1054 return $filename;
1055 }
1056
1057 if (!$rename_method) {
1058 print STDERR "WARNING: no file renaming method specified. Defaulting to using URL encoding...\n";
1059 # Debugging information
1060 # my ($cpackage,$cfilename,$cline,$csubr,$chas_args,$cwantarray) = caller(1);
1061 # print STDERR "Called from method: $cfilename:$cline $cpackage->$csubr\n";
1062 $rename_method = "url";
1063 } elsif($rename_method eq "none") {
1064 return $filename; # would have already been renamed
1065 }
1066
1067 # No longer replace spaces with underscores, since underscores mess with incremental rebuild
1068 ### Replace spaces with underscore. Do this first else it can go wrong below when getting tailname
1069 ###$filename =~ s/ /_/g;
1070
1071 my ($tailname,$dirname,$suffix);
1072 if($no_suffix) { # given a tailname, no suffix
1073 ($tailname,$dirname) = File::Basename::fileparse($filename);
1074 }
1075 else {
1076 ($tailname,$dirname,$suffix) = File::Basename::fileparse($filename, "\\.(?:[^\\.]+?)\$");
1077 }
1078 if (!$suffix) {
1079 $suffix = "";
1080 }
1081 # This breaks GLI matching extracted metadata to files in Enrich panel, as
1082 # original is eg .JPG while gsdlsourcefilename ends up .jpg
1083 # Not sure why it was done in first place...
1084 #else {
1085 #$suffix = lc($suffix);
1086 #}
1087
1088 if ($rename_method eq "url") {
1089 $tailname = &unicode::url_encode($tailname);
1090 }
1091 elsif ($rename_method eq "base64") {
1092 $tailname = &unicode::base64_encode($tailname);
1093 $tailname =~ s/\s*//sg; # for some reason it adds spaces not just at end but also in middle
1094 }
1095
1096 $filename = "$tailname$suffix";
1097 $filename = "$dirname$filename" if ($dirname ne "./" && $dirname ne ".\\");
1098
1099 return $filename;
1100}
1101
1102
1103# BACKWARDS COMPATIBILITY: Just in case there are old .ldb/.bdb files
1104sub rename_ldb_or_bdb_file {
1105 my ($filename_no_ext) = @_;
1106
1107 my $new_filename = "$filename_no_ext.gdb";
1108 return if (-f $new_filename); # if the file has the right extension, don't need to do anything
1109 # try ldb
1110 my $old_filename = "$filename_no_ext.ldb";
1111
1112 if (-f $old_filename) {
1113 print STDERR "Renaming $old_filename to $new_filename\n";
1114 rename ($old_filename, $new_filename)
1115 || print STDERR "Rename failed: $!\n";
1116 return;
1117 }
1118 # try bdb
1119 $old_filename = "$filename_no_ext.bdb";
1120 if (-f $old_filename) {
1121 print STDERR "Renaming $old_filename to $new_filename\n";
1122 rename ($old_filename, $new_filename)
1123 || print STDERR "Rename failed: $!\n";
1124 return;
1125 }
1126}
1127
1128sub os_dir() {
1129
1130 my $gsdlarch = "";
1131 if(defined $ENV{'GSDLARCH'}) {
1132 $gsdlarch = $ENV{'GSDLARCH'};
1133 }
1134 return $ENV{'GSDLOS'}.$gsdlarch;
1135}
1136
1137# returns 1 if this (GS server) is a GS3 installation, returns 0 if it's GS2.
1138sub is_gs3() {
1139 if($ENV{'GSDL3SRCHOME'}) {
1140 return 1;
1141 } else {
1142 return 0;
1143 }
1144}
1145
1146# Returns the greenstone URL prefix extracted from the appropriate GS2/GS3 config file.
1147# By default, /greenstone3 for GS3 or /greenstone for GS2.
1148sub get_greenstone_url_prefix() {
1149 # if already set on a previous occasion, just return that
1150 # (Don't want to keep repeating this: cost of re-opening and scanning files.)
1151 return $ENV{'GREENSTONE_URL_PREFIX'} if($ENV{'GREENSTONE_URL_PREFIX'});
1152
1153 my ($configfile, $urlprefix, $defaultUrlprefix);
1154 my @propertynames = ();
1155
1156 if($ENV{'GSDL3SRCHOME'}) {
1157 $defaultUrlprefix = "/greenstone3";
1158 $configfile = &FileUtils::filenameConcatenate($ENV{'GSDL3SRCHOME'}, "packages", "tomcat", "conf", "Catalina", "localhost", "greenstone3.xml");
1159 push(@propertynames, qw/path\s*\=/);
1160 } else {
1161 $defaultUrlprefix = "/greenstone";
1162 $configfile = &FileUtils::filenameConcatenate($ENV{'GSDLHOME'}, "cgi-bin", &os_dir(), "gsdlsite.cfg");
1163 push(@propertynames, (qw/\nhttpprefix/, qw/\ngwcgi/)); # inspect one property then the other
1164 }
1165
1166 $urlprefix = &extract_propvalue_from_file($configfile, \@propertynames);
1167
1168 if(!$urlprefix) { # no values found for URL prefix, use default values
1169 $urlprefix = $defaultUrlprefix;
1170 } else {
1171 #gwcgi can contain more than the wanted prefix, we split on / to get the first "directory" level
1172 $urlprefix =~ s/^\///; # remove the starting slash
1173 my @dirs = split(/(\\|\/)/, $urlprefix);
1174 $urlprefix = shift(@dirs);
1175
1176 if($urlprefix !~ m/^\//) { # in all cases: ensure the required forward slash is at the front
1177 $urlprefix = "/$urlprefix";
1178 }
1179 }
1180
1181 # set for the future
1182 $ENV{'GREENSTONE_URL_PREFIX'} = $urlprefix;
1183# print STDERR "*** in get_greenstone_url_prefix(): $urlprefix\n\n";
1184 return $urlprefix;
1185}
1186
1187
1188
1189#
1190# The following comaes from activate.pl
1191#
1192# Designed to work with a server included with GS.
1193# - For GS3, we ask ant for the library URL.
1194# - For GS2, we derive the URL from the llssite.cfg file.
1195
1196sub get_full_greenstone_url_prefix
1197{
1198 # if already set on a previous occasion, just return that
1199 # (Don't want to keep repeating this: cost of re-opening and scanning files.)
1200 return $ENV{'GREENSTONE_URL_PREFIX'} if($ENV{'GREENSTONE_URL_PREFIX'});
1201
1202 my $gs_mode = ($ENV{'GSDL3SRCHOME'}) ? "gs3" : "gs2";
1203
1204 my $url = undef;
1205
1206 if($gs_mode eq "gs2") {
1207 my $llssite_cfg = &FileUtils::filenameConcatenate($ENV{'GSDLHOME'}, "llssite.cfg");
1208
1209 if(-f $llssite_cfg) {
1210 # check llssite.cfg for line with url property
1211 # for server.exe also need to use portnumber and enterlib properties
1212
1213 # Read in the entire contents of the file in one hit
1214 if (!open (FIN, $llssite_cfg)) {
1215 print STDERR "util::get_library_URL() failed to open $llssite_cfg ($!)\n";
1216 return undef;
1217 }
1218
1219 my $contents;
1220 sysread(FIN, $contents, -s FIN);
1221 close(FIN);
1222
1223 my @lines = split(/[\n\r]+/, $contents); # split on carriage-returns and/or linefeeds
1224 my $enterlib = "";
1225 my $portnumber = ""; # will remain empty (implicit port 80) unless it's specifically been assigned
1226
1227 foreach my $line (@lines) {
1228 if($line =~ m/^url=(.*)$/) {
1229 $url = $1;
1230 } elsif($line =~ m/^enterlib=(.*)$/) {
1231 $enterlib = $1;
1232 } elsif($line =~ m/^portnumber=(.*)$/) {
1233 $portnumber = $1;
1234 }
1235 }
1236
1237 if(!$url) {
1238 return undef;
1239 }
1240 elsif($url eq "URL_pending") { # library is not running
1241 # do not process url=URL_pending in the file, since for server.exe
1242 # this just means the Enter Library button hasn't been pressed yet
1243 $url = undef;
1244 }
1245 else {
1246 # In the case of server.exe, need to do extra work to get the proper URL
1247 # But first, need to know whether we're indeed dealing with server.exe:
1248
1249 # compare the URL's domain to the full URL
1250 # E.g. for http://localhost:8383/greenstone3/cgi-bin, the domain is localhost:8383
1251 my $uri = URI->new( $url );
1252 my $host = $uri->host;
1253 #print STDERR "@@@@@ host: $host\n";
1254 if($url =~ m/http:\/\/$host(\/)?$/) {
1255 #if($url !~ m/http:\/\/$host:$portnumber(\/)?/ || $url =~ m/http:\/\/$host(\/)?$/) {
1256 # (if the URL does not contain the portnumber, OR if the port is implicitly 80 and)
1257 # If the domain with http:// prefix is completely the same as the URL, assume server.exe
1258 # then the actual URL is the result of suffixing the port and enterlib properties in llssite.cfg
1259 $url = $url.":".$portnumber.$enterlib;
1260 } # else, apache web server
1261
1262 }
1263 }
1264 } elsif($gs_mode eq "gs3") {
1265 # Either check build.properties for tomcat.server, tomcat.port and app.name (and default servlet name).
1266 # app.name is stored in app.path by build.xml. Need to move app.name in build.properties from build.xml
1267
1268 # Or, run the new target get-default-servlet-url
1269 # the output can look like:
1270 #
1271 # Buildfile: build.xml
1272 # [echo] os.name: Windows Vista
1273 #
1274 # get-default-servlet-url:
1275 # [echo] http://localhost:8383/greenstone3/library
1276 # BUILD SUCCESSFUL
1277 # Total time: 0 seconds
1278
1279 #my $output = qx/ant get-default-servlet-url/; # backtick operator, to get STDOUT (else 2>&1)
1280 # - see http://stackoverflow.com/questions/799968/whats-the-difference-between-perls-backticks-system-and-exec
1281
1282 # The get-default-servlet-url ant target can be run from anywhere by specifying the
1283 # location of GS3's ant build.xml buildfile. Activate.pl can be run from anywhere for GS3
1284 # GSDL3SRCHOME will be set for GS3 by gs3-setup.sh, a step that would have been necessary
1285 # to run the activate.pl script in the first place
1286
1287 my $full_build_xml = &FileUtils::javaFilenameConcatenate($ENV{'GSDL3SRCHOME'},"build.xml");
1288
1289 my $perl_command = "ant -buildfile \"$full_build_xml\" get-default-servlet-url";
1290
1291 if (open(PIN, "$perl_command |")) {
1292 while (defined (my $perl_output_line = <PIN>)) {
1293
1294 if($perl_output_line =~ m@http:\/\/(\S*)@) { # grab all the non-whitespace chars
1295 $url="http://".$1;
1296 }
1297 }
1298 close(PIN);
1299 } else {
1300 print STDERR "util::get_library_URL() failed to run $perl_command to work out library URL for $gs_mode\n";
1301 }
1302 }
1303
1304 # either the url is still undef or it is now set
1305 #print STDERR "\n@@@@@ final URL:|$url|\n" if $url;
1306 #print STDERR "\n@@@@@ URL still undef\n" if !$url;
1307
1308 $ENV{'FULL_GREENSTONE_URL_PREFIX'} = $url;
1309
1310 return $url;
1311}
1312
1313
1314# Given a config file (xml or java properties file) and a list/array of regular expressions
1315# that represent property names to match on, this function will return the value for the 1st
1316# matching property name. If the return value is undefined, no matching property was found.
1317sub extract_propvalue_from_file() {
1318 my ($configfile, $propertynames) = @_;
1319
1320 my $value;
1321 unless(open(FIN, "<$configfile")) {
1322 print STDERR "extract_propvalue_from_file(): Unable to open $configfile. $!\n";
1323 return $value; # not initialised
1324 }
1325
1326 # Read the entire file at once, as one single line, then close it
1327 my $filecontents;
1328 {
1329 local $/ = undef;
1330 $filecontents = <FIN>;
1331 }
1332 close(FIN);
1333
1334 foreach my $regex (@$propertynames) {
1335 ($value) = $filecontents=~ m/$regex\s*(\S*)/s; # read value of the property given by regex up to the 1st space
1336 if($value) {
1337 $value =~ s/^\"//; # remove any startquotes
1338 $value =~ s/\".*$//; # remove the 1st endquotes (if any) followed by any xml
1339 last; # found value for a matching property, break from loop
1340 }
1341 }
1342
1343 return $value;
1344}
1345
1346# Subroutine that sources setup.bash, given GSDLHOME and GSDLOS and
1347# given that perllib is in @INC in order to invoke this subroutine.
1348# Call as follows -- after setting up INC to include perllib and
1349# after setting up GSDLHOME and GSDLOS:
1350#
1351# require util;
1352# &util::setup_greenstone_env($ENV{'GSDLHOME'}, $ENV{'GSDLOS'});
1353#
1354sub setup_greenstone_env() {
1355 my ($GSDLHOME, $GSDLOS) = @_;
1356
1357 #my %env_map = ();
1358 # Get the localised ENV settings of running a localised source setup.bash
1359 # and put it into the ENV here. Need to clear GSDLHOME before running setup
1360 #my $perl_command = "(cd $GSDLHOME; export GSDLHOME=; . ./setup.bash > /dev/null; env)";
1361 my $perl_command = "(cd $GSDLHOME; /bin/bash -c \"export GSDLHOME=; source setup.bash > /dev/null; env\")";
1362 if (($GSDLOS =~ m/windows/i) && ($^O ne "cygwin")) {
1363 #$perl_command = "cmd /C \"cd $GSDLHOME&& set GSDLHOME=&& setup.bat > nul&& set\"";
1364 $perl_command = "(cd $GSDLHOME&& set GSDLHOME=&& setup.bat > nul&& set)";
1365 }
1366 if (!open(PIN, "$perl_command |")) {
1367 print STDERR ("Unable to execute command: $perl_command. $!\n");
1368 }
1369
1370 my $lastkey;
1371 while (defined (my $perl_output_line = <PIN>)) {
1372 my($key,$value) = ($perl_output_line =~ m/^([^=]*)[=](.*)$/);
1373 if(defined $key) {
1374 #$env_map{$key}=$value;
1375 $ENV{$key}=$value;
1376 $lastkey = $key;
1377 } elsif($lastkey && $perl_output_line !~ m/^\s*$/) {
1378 # there was no equals sign in $perl_output_line, so this
1379 # $perl_output_line may be a spillover from the previous
1380 $ENV{$lastkey} = $ENV{$lastkey}."\n".$perl_output_line;
1381 }
1382 }
1383 close (PIN);
1384
1385 # If any keys in $ENV don't occur in Greenstone's localised env
1386 # (stored in $env_map), delete those entries from $ENV
1387 #foreach $key (keys %ENV) {
1388 # if(!defined $env_map{$key}) {
1389 # print STDOUT "**** DELETING ENV KEY: $key\tVALUE: $ENV{$key}\n";
1390 # delete $ENV{$key}; # del $ENV(key, value) pair
1391 # }
1392 #}
1393 #undef %env_map;
1394}
1395
1396sub get_perl_exec() {
1397 my $perl_exec = $^X; # may return just "perl"
1398
1399 if($ENV{'PERLPATH'}) {
1400 # OR: # $perl_exec = &FileUtils::filenameConcatenate($ENV{'PERLPATH'},"perl");
1401 if (($ENV{'GSDLOS'} =~ m/windows/) && ($^O ne "cygwin")) {
1402 $perl_exec = "$ENV{'PERLPATH'}\\Perl.exe";
1403 } else {
1404 $perl_exec = "$ENV{'PERLPATH'}/perl";
1405 }
1406 } else { # no PERLPATH, use Config{perlpath} else $^X: special variables
1407 # containing the full path to the current perl executable we're using
1408 $perl_exec = $Config{perlpath}; # configured path for perl
1409 if (!-e $perl_exec) { # may not point to location on this machine
1410 $perl_exec = $^X; # may return just "perl"
1411 if($perl_exec =~ m/^perl/i) { # warn if just perl or Perl.exe
1412 print STDERR "**** WARNING: Perl exec found contains no path: $perl_exec";
1413 }
1414 }
1415 }
1416
1417 return $perl_exec;
1418}
1419
1420# returns the path to the java command in the JRE included with GS (if any),
1421# quoted to safeguard any spaces in this path, otherwise a simple java
1422# command is returned which assumes and will try for a system java.
1423sub get_java_command {
1424 my $java = "java";
1425 if(defined $ENV{'GSDLHOME'}) { # should be, as this script would be launched from the cmd line
1426 # after running setup.bat or from GLI which also runs setup.bat
1427 my $java_bin = &FileUtils::filenameConcatenate($ENV{'GSDLHOME'},"packages","jre","bin");
1428 if(-d $java_bin) {
1429 $java = &FileUtils::filenameConcatenate($java_bin,"java");
1430 $java = "\"".$java."\""; # quoted to preserve spaces in path
1431 }
1432 }
1433 return $java;
1434}
1435
1436
1437# Given the qualified collection name (colgroup/collection),
1438# returns the collection and colgroup parts
1439sub get_collection_parts {
1440 # http://perldoc.perl.org/File/Basename.html
1441 # my($filename, $directories, $suffix) = fileparse($path);
1442 # "$directories contains everything up to and including the last directory separator in the $path
1443 # including the volume (if applicable). The remainder of the $path is the $filename."
1444 #my ($collection, $colgroup) = &File::Basename::fileparse($qualified_collection);
1445
1446 my $qualified_collection = shift(@_);
1447
1448 # Since activate.pl can be launched from the command-line, including by a user,
1449 # best not to assume colgroup uses URL-style slashes as would be the case with GLI
1450 # Also allow for the accidental inclusion of multiple slashes
1451 my ($colgroup, $collection) = split(/[\/\\]+/, $qualified_collection); #split('/', $qualified_collection);
1452
1453 if(!defined $collection) {
1454 $collection = $colgroup;
1455 $colgroup = "";
1456 }
1457 return ($collection, $colgroup);
1458}
1459
1460# work out the "collectdir/collection" location
1461sub resolve_collection_dir {
1462 my ($collect_dir, $qualified_collection, $site) = @_; #, $gs_mode
1463
1464 if (defined $ENV{'GSDLCOLLECTDIR'}) { # a predefined collection dir exists
1465 return $ENV{'GSDLCOLLECTDIR'};
1466 }
1467
1468 my ($colgroup, $collection) = &util::get_collection_parts($qualified_collection);
1469
1470 if (!defined $collect_dir || !$collect_dir) { # if undefined or empty string
1471 $collect_dir = &util::get_working_collect_dir($site);
1472 }
1473
1474 return &FileUtils::filenameConcatenate($collect_dir,$colgroup,$collection);
1475}
1476
1477# work out the full path to "collect" of this greenstone 2/3 installation
1478sub get_working_collect_dir {
1479 my ($site) = @_;
1480
1481 if (defined $ENV{'GSDLCOLLECTHOME'}) { # a predefined collect dir exists
1482 return $ENV{'GSDLCOLLECTHOME'};
1483 }
1484
1485 if (defined $site && $site) { # site non-empty, so get default collect dir for GS3
1486
1487 if (defined $ENV{'GSDL3HOME'}) {
1488 return &FileUtils::filenameConcatenate($ENV{'GSDL3HOME'},"sites",$site,"collect"); # web folder
1489 }
1490 elsif (defined $ENV{'GSDL3SRCHOME'}) {
1491 return &FileUtils::filenameConcatenate($ENV{'GSDL3SRCHOME'},"web","sites",$site,"collect");
1492 }
1493 }
1494
1495 elsif (defined $ENV{'SITEHOME'}) {
1496 return &FileUtils::filenameConcatenate($ENV{'SITEHOME'},"collect");
1497 }
1498
1499 else { # get default collect dir for GS2
1500 return &FileUtils::filenameConcatenate($ENV{'GSDLHOME'},"collect");
1501 }
1502}
1503
1504sub is_abs_path_any_os {
1505 my ($path) = @_;
1506
1507 # We can have filenames in our DBs that were produced on other OS, so this method exists
1508 # to help identify absolute paths in such cases.
1509
1510 return 1 if($path =~ m@^/@); # full paths begin with forward slash on linux/mac
1511 return 1 if($path =~ m@^([a-zA-Z]\:|\\)@); # full paths begin with drive letter colon for Win or \ for volume, http://stackoverflow.com/questions/13011013/get-only-volume-name-from-filepath
1512
1513 return 0;
1514}
1515
1516
1517# This subroutine is for improving portability of Greenstone collections from one OS to another,
1518# to be used to convert absolute paths going into db files into paths with placeholders instead.
1519# This sub works with util::get_common_gs_paths and takes a path to a greenstone file and, if it's
1520# an absolute path, then it will replace the longest matching greenstone-path prefix of the given
1521# path with a placeholder to match.
1522# The Greenstone-path prefixes that can be matched are the following common Greenstone paths:
1523# the path to the current (specific) collection, the path to the general GS collect directory,
1524# the path to the site directory if GS3, else the path to the GSDLHOME/GSDL3HOME folder.
1525# The longest matching prefix will be replaced with the equivalent placeholder:
1526# @THISCOLLECTPATH@, else @COLLECTHOME@, else @SITEHOME@, else @GSDLHOME@.
1527sub abspath_to_placeholders {
1528 my $path = shift(@_); # path to convert from absolute to one with placeholders
1529 my $opt_long_or_short_winfilenames = shift(@_) || "short"; # whether we want to force use of long file names even on windows, default uses short
1530
1531 return $path unless is_abs_path_any_os($path); # path is relative
1532
1533 if ($opt_long_or_short_winfilenames eq "long") {
1534 $path = &util::upgrade_if_dos_filename($path); # will only do something on windows
1535 }
1536
1537 # now we know we're dealing with absolute paths and have to replace gs prefixes with placeholders
1538 my @gs_paths = ($ENV{'GSDLCOLLECTDIR'}, $ENV{'GSDLCOLLECTHOME'}, $ENV{'SITEHOME'}, $ENV{'GREENSTONEHOME'}); # list in this order: from longest to shortest path
1539
1540 my %placeholder_map = ($ENV{'GREENSTONEHOME'} => '@GSDLHOME@', # can't use double-quotes around at-sign, else perl tries to evaluate it as referring to an array
1541 $ENV{'GSDLCOLLECTHOME'} => '@COLLECTHOME@',
1542 $ENV{'GSDLCOLLECTDIR'} => '@THISCOLLECTPATH@'
1543 );
1544 $placeholder_map{$ENV{'SITEHOME'}} = '@SITEHOME@' if defined $ENV{'SITEHOME'};
1545
1546 $path = &util::_abspath_to_placeholders($path, \@gs_paths, \%placeholder_map);
1547
1548 if ($ENV{'GSDLOS'} =~ /^windows$/i && $opt_long_or_short_winfilenames eq "short") {
1549 # for windows need to look for matches on short file names too
1550 # matched paths are again to be replaced with the usual placeholders
1551
1552 my $gsdlcollectdir = &util::downgrade_if_dos_filename($ENV{'GSDLCOLLECTDIR'});
1553 my $gsdlcollecthome = &util::downgrade_if_dos_filename($ENV{'GSDLCOLLECTHOME'});
1554 my $sitehome = (defined $ENV{'SITEHOME'}) ? &util::downgrade_if_dos_filename($ENV{'SITEHOME'}) : undef;
1555 my $greenstonehome = &util::downgrade_if_dos_filename($ENV{'GREENSTONEHOME'});
1556
1557 @gs_paths = ($gsdlcollectdir, $gsdlcollecthome, $sitehome, $greenstonehome); # order matters
1558
1559 %placeholder_map = ($greenstonehome => '@GSDLHOME@', # can't use double-quotes around at-sign, else perl tries to evaluate it as referring to an array
1560 $gsdlcollecthome => '@COLLECTHOME@',
1561 $gsdlcollectdir => '@THISCOLLECTPATH@'
1562 );
1563 $placeholder_map{$sitehome} = '@SITEHOME@' if defined $sitehome;
1564
1565 $path = &util::_abspath_to_placeholders($path, \@gs_paths, \%placeholder_map);
1566 }
1567
1568 return $path;
1569}
1570
1571sub _abspath_to_placeholders {
1572 my ($path, $gs_paths_ref, $placeholder_map_ref) = @_;
1573
1574 # The sequence of elements in @gs_paths matters
1575 # Need to loop starting from the *longest* matching path (the path to the specific collection)
1576 # to the shortest matching path (the path to gsdlhome/gsdl3home folder):
1577
1578 foreach my $gs_path (@$gs_paths_ref) {
1579 next if(!defined $gs_path); # site undefined for GS2
1580
1581 my $re_path = &util::filename_to_regex($gs_path); # escape for regex
1582
1583 if($path =~ m/^$re_path/i) { # case sensitive or not for OS?
1584
1585 my $placeholder = $placeholder_map_ref->{$gs_path}; # get the placeholder to replace the matched path with
1586
1587 $path =~ s/^$re_path/$placeholder/; #case sensitive or not?
1588 #$path =~ s/^[\\\/]//; # remove gs_path's trailing separator left behind at the start of the path
1589 # lowercase file extension, This is needed when shortfilenames are used, as case affects alphetical ordering, which affects diffcol
1590 $path =~ s/\.([A-Z]+)$/".".lc($1)/e;
1591 last; # done
1592 }
1593 }
1594
1595 return $path;
1596}
1597
1598# Function that does the reverse of the util::abspath_to_placeholders subroutine
1599# Once again, call this with the values returned from util::get_common_gs_paths
1600sub placeholders_to_abspath {
1601 my $path = shift(@_); # path that can contain placeholders to convert to resolved absolute path
1602 my $opt_long_or_short_winfilenames = shift(@_) || "short"; # whether we want to force use of long file names even on windows, default uses short
1603
1604 return $path if($path !~ m/@/); # path contains no placeholders
1605
1606 # replace placeholders with gs prefixes
1607 my @placeholders = ('@THISCOLLECTPATH@', '@COLLECTHOME@', '@SITEHOME@', '@GSDLHOME@'); # order of paths not crucial in this case,
1608 # but listed here from longest to shortest once placeholders are have been resolved
1609
1610 # can't use double-quotes around at-sign, else perl tries to evaluate it as referring to an array
1611 my %placeholder_to_gspath_map;
1612 if ($ENV{'GSDLOS'} =~ /^windows$/i && $opt_long_or_short_winfilenames eq "short") {
1613 # always replace placeholders with short file names of the absolute paths on windows?
1614 %placeholder_to_gspath_map = ('@GSDLHOME@' => &util::downgrade_if_dos_filename($ENV{'GREENSTONEHOME'}),
1615 '@COLLECTHOME@' => &util::downgrade_if_dos_filename($ENV{'GSDLCOLLECTHOME'}),
1616 '@THISCOLLECTPATH@' => &util::downgrade_if_dos_filename($ENV{'GSDLCOLLECTDIR'})
1617 );
1618 $placeholder_to_gspath_map{'@SITEHOME@'} = &util::downgrade_if_dos_filename($ENV{'SITEHOME'}) if defined $ENV{'SITEHOME'};
1619 } else {
1620 %placeholder_to_gspath_map = ('@GSDLHOME@' => $ENV{'GREENSTONEHOME'},
1621 '@SITEHOME@' => $ENV{'SITEHOME'}, # can be undef
1622 '@COLLECTHOME@' => $ENV{'GSDLCOLLECTHOME'},
1623 '@THISCOLLECTPATH@' => $ENV{'GSDLCOLLECTDIR'}
1624 ); # $placeholder_to_gspath_map{'@SITEHOME@'} = $ENV{'SITEHOME'} if defined $ENV{'SITEHOME'};
1625 }
1626
1627 foreach my $placeholder (@placeholders) {
1628 my $gs_path = $placeholder_to_gspath_map{$placeholder};
1629
1630 next if(!defined $gs_path); # sitehome for GS2 is undefined
1631
1632 if($path =~ m/^$placeholder/) {
1633 $path =~ s/^$placeholder/$gs_path/;
1634 last; # done
1635 }
1636 }
1637
1638 return $path;
1639}
1640
1641# Used by pdfpstoimg.pl and PDFBoxConverter to create a .item file from
1642# a directory containing sequentially numbered images.
1643sub create_itemfile
1644{
1645 my ($output_dir, $convert_basename, $convert_to) = @_;
1646 my $page_num = "";
1647
1648 opendir(DIR, $output_dir) || die "can't opendir $output_dir: $!";
1649 my @dir_files = grep {-f "$output_dir/$_"} readdir(DIR);
1650 closedir DIR;
1651
1652 # Sort files in the directory by page_num
1653 sub page_number {
1654 my ($dir) = @_;
1655 my ($pagenum) =($dir =~ m/^.*?[-\.]?(\d+)(\.(jpg|gif|png))?$/i);
1656# my ($pagenum) =($dir =~ m/(\d+)(\.(jpg|gif|png))?$/i); # this works but is not as safe/strict about input filepatterns as the above
1657
1658 $pagenum = 1 unless defined $pagenum;
1659 return $pagenum;
1660 }
1661
1662 # sort the files in the directory in the order of page_num rather than lexically.
1663 @dir_files = sort { page_number($a) <=> page_number($b) } @dir_files;
1664
1665 # work out if the numbering of the now sorted image files starts at 0 or not
1666 # by checking the number of the first _image_ file (skipping item files)
1667 my $starts_at_0 = 0;
1668 my $firstfile = ($dir_files[0] !~ /\.item$/i) ? $dir_files[0] : $dir_files[1];
1669 if(page_number($firstfile) == 0) { # 00 will evaluate to 0 too in this condition
1670 $starts_at_0 = 1;
1671 }
1672
1673 my $item_file = &FileUtils::filenameConcatenate($output_dir, $convert_basename.".item");
1674 my $item_fh;
1675 &FileUtils::openFileHandle($item_file, 'w', \$item_fh);
1676 print $item_fh "<PagedDocument>\n";
1677
1678 foreach my $file (@dir_files){
1679 if ($file !~ /\.item/i){
1680 $page_num = page_number($file);
1681 $page_num++ if $starts_at_0; # image numbers start at 0, so add 1
1682 print $item_fh " <Page pagenum=\"$page_num\" imgfile=\"$file\" txtfile=\"\"/>\n";
1683 }
1684 }
1685
1686 print $item_fh "</PagedDocument>\n";
1687 &FileUtils::closeFileHandle($item_file, \$item_fh);
1688 return $item_file;
1689}
1690
1691# Sets the gnomelib_env. Based on the logic in wvware.pl which can perhaps be replaced with a call to this function in future
1692sub set_gnomelib_env
1693{
1694 ## SET THE ENVIRONMENT AS DONE IN SETUP.BASH/BAT OF GNOME-LIB
1695 # Though this is only needed for darwin Lion at this point (and android, though that is untested)
1696
1697 my $libext = "so";
1698 if ($ENV{'GSDLOS'} =~ m/^windows$/i) {
1699 return;
1700 } elsif ($ENV{'GSDLOS'} =~ m/^darwin$/i) {
1701 $libext = "dylib";
1702 }
1703
1704 if (!defined $ENV{'GEXTGNOME'}) {
1705 ##print STDERR "@@@ Setting GEXTGNOME env\n";
1706
1707 my $gnome_dir = &FileUtils::filenameConcatenate($ENV{'GSDLHOME'},"ext","gnome-lib-minimal");
1708
1709 if(! -d $gnome_dir) {
1710 $gnome_dir = &FileUtils::filenameConcatenate($ENV{'GSDLHOME'},"ext","gnome-lib");
1711
1712 if(! -d $gnome_dir) {
1713 $gnome_dir = "";
1714 }
1715 }
1716
1717 # now set other the related env vars,
1718 # IF we've found the gnome-lib dir installed in the ext folder
1719
1720 if ($gnome_dir ne "" && -f &FileUtils::filenameConcatenate($gnome_dir, $ENV{'GSDLOS'}, "lib", "libiconv.$libext")) {
1721 $ENV{'GEXTGNOME'} = $gnome_dir;
1722 $ENV{'GEXTGNOME_INSTALLED'}=&FileUtils::filenameConcatenate($ENV{'GEXTGNOME'}, $ENV{'GSDLOS'});
1723
1724 my $gnomelib_bin = &FileUtils::filenameConcatenate($ENV{'GEXTGNOME_INSTALLED'}, "bin");
1725 if(-d $gnomelib_bin) { # no bin subfolder in GS binary's cutdown gnome-lib-minimal folder
1726 &util::envvar_prepend("PATH", $gnomelib_bin);
1727 }
1728
1729 # util's prepend will create LD/DYLD_LIB_PATH if it doesn't exist yet
1730 my $gextlib = &FileUtils::filenameConcatenate($ENV{'GEXTGNOME_INSTALLED'}, "lib");
1731
1732 if($ENV{'GSDLOS'} eq "linux") {
1733 &util::envvar_prepend("LD_LIBRARY_PATH", $gextlib);
1734 }
1735 elsif ($ENV{'GSDLOS'} eq "darwin") {
1736 #&util::envvar_prepend("DYLD_LIBRARY_PATH", $gextlib);
1737 &util::envvar_prepend("DYLD_FALLBACK_LIBRARY_PATH", $gextlib);
1738 }
1739 }
1740
1741 # Above largely mimics the setup.bash of the gnome-lib-minimal.
1742 # Not doing the devel-srcpack that gnome-lib-minimal's setup.bash used to set
1743 # Not exporting GSDLEXTS variable either
1744 }
1745
1746# print STDERR "@@@@@ GEXTGNOME: ".$ENV{'GEXTGNOME'}."\n\tINSTALL".$ENV{'GEXTGNOME_INSTALLED'}."\n";
1747# print STDERR "\tPATH".$ENV{'PATH'}."\n";
1748# print STDERR "\tLD_LIB_PATH".$ENV{'LD_LIBRARY_PATH'}."\n" if $ENV{'LD_LIBRARY_PATH};
1749# print STDERR "\tDYLD_FALLBACK_LIB_PATH".$ENV{'DYLD_FALLBACK_LIBRARY_PATH'}."\n" if $ENV{'DYLD_FALLBACK_LIBRARY_PATH};
1750
1751 # if no GEXTGNOME, maybe users didn't need gnome-lib to run gnomelib/libiconv dependent binaries like hashfile, suffix, wget
1752 # (wvware is launched in a gnomelib env from its own script, but could possibly go through this script in future)
1753}
1754
1755
1756
1757## @function augmentINC()
1758#
1759# Prepend a path (if it exists) onto INC but only if it isn't already in INC
1760# @param $new_path The path to add
1761# @author jmt12
1762#
1763sub augmentINC
1764{
1765 my ($new_path) = @_;
1766 my $did_add_path = 0;
1767 # might need to be replaced with FileUtils::directoryExists() call eventually
1768 if (-d $new_path)
1769 {
1770 my $did_find_path = 0;
1771 foreach my $existing_path (@INC)
1772 {
1773 if ($existing_path eq $new_path)
1774 {
1775 $did_find_path = 1;
1776 last;
1777 }
1778 }
1779 if (!$did_find_path)
1780 {
1781 unshift(@INC, $new_path);
1782 $did_add_path = 1;
1783 }
1784 }
1785 return $did_add_path;
1786}
1787## augmentINC()
1788
1789
17901;
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