note about undocumented caller() return value (from M.J.T. Guy);
[p5sagit/p5-mst-13.2.git] / x2p / find2perl.PL
CommitLineData
4633a7c4 1#!/usr/local/bin/perl
2
3use Config;
4use File::Basename qw(&basename &dirname);
8a5546a1 5use Cwd;
4633a7c4 6
7# List explicitly here the variables you want Configure to
8# generate. Metaconfig only looks for shell variables, so you
9# have to mention them as if they were shell variables, not
10# %Config entries. Thus you write
11# $startperl
12# to ensure Configure will look for $Config{startperl}.
13
14# This forces PL files to create target in same directory as PL file.
15# This is so that make depend always knows where to find PL derivatives.
8a5546a1 16$origdir = cwd;
44a8e56a 17chdir dirname($0);
18$file = basename($0, '.PL');
774d564b 19$file .= '.com' if $^O eq 'VMS';
4633a7c4 20
21open OUT,">$file" or die "Can't create $file: $!";
22
23print "Extracting $file (with variable substitutions)\n";
24
25# In this section, perl variables will be expanded during extraction.
26# You can use $Config{...} to use Configure variables.
27
28print OUT <<"!GROK!THIS!";
5f05dabc 29$Config{startperl}
30 eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}'
7b8d334a 31 if \$running_under_some_shell;
431613dd 32my \$perlpath = "$Config{perlpath}";
4633a7c4 33!GROK!THIS!
34
35# In the following, perl variables are not expanded during extraction.
36
37print OUT <<'!NO!SUBS!';
431613dd 38use strict;
39use vars qw/$statdone/;
40my $startperl = "#! $perlpath -w";
7b8d334a 41
431613dd 42#
93a17b20 43# Modified September 26, 1993 to provide proper handling of years after 1999
44# Tom Link <tml+@pitt.edu>
45# University of Pittsburgh
431613dd 46#
7b8d334a 47# Modified April 7, 1998 with nasty hacks to implement the troublesome -follow
48# Billy Constantine <wdconsta@cs.adelaide.edu.au> <billy@smug.adelaide.edu.au>
49# University of Adelaide, Adelaide, South Australia
431613dd 50#
51# Modified 1999-06-10, 1999-07-07 to migrate to cleaner perl5 usage
52# Ken Pizzini <ken@halcyon.com>
3d1e7443 53#
54# Modified 2000-01-28 to use the 'follow' option of File::Find
fe14fcc3 55
431613dd 56my @roots = ();
fe14fcc3 57while ($ARGV[0] =~ /^[^-!(]/) {
58 push(@roots, shift);
59}
60@roots = ('.') unless @roots;
431613dd 61for (@roots) { $_ = &quote($_) }
62my $roots = join(', ', @roots);
63
64my $find = "find";
65my $indent_depth = 1;
66my $stat = 'lstat';
67my $decl = '';
68my $flushall = '';
69my $initfile = '';
70my $initnewer = '';
71my $out = '';
72my %init = ();
3d1e7443 73my ($follow_in_effect,$Skip_And) = (0,0);
fe14fcc3 74
75while (@ARGV) {
76 $_ = shift;
77 s/^-// || /^[()!]/ || die "Unrecognized switch: $_\n";
78 if ($_ eq '(') {
431613dd 79 $out .= &tab . "(\n";
80 $indent_depth++;
81 next;
82 } elsif ($_ eq ')') {
83 --$indent_depth;
84 $out .= &tab . ")";
85 } elsif ($_ eq 'follow') {
3d1e7443 86 $follow_in_effect= 1;
431613dd 87 $stat = 'stat';
3d1e7443 88 $Skip_And= 1;
431613dd 89 } elsif ($_ eq '!') {
90 $out .= &tab . "!";
91 next;
92 } elsif ($_ eq 'name') {
c7b9dd21 93 $out .= &tab . '/' . &fileglob_to_re(shift) . "/s";
431613dd 94 } elsif ($_ eq 'perm') {
95 my $onum = shift;
96 $onum =~ /^-?[0-7]+$/
97 || die "Malformed -perm argument: $onum\n";
98 $out .= &tab;
99 if ($onum =~ s/^-//) {
100 $onum = sprintf("0%o", oct($onum) & 07777);
101 $out .= "((\$mode & $onum) == $onum)";
102 } else {
103 $onum =~ s/^0*/0/;
104 $out .= "((\$mode & 0777) == $onum)";
105 }
106 } elsif ($_ eq 'type') {
107 (my $filetest = shift) =~ tr/s/S/;
108 $out .= &tab . "-$filetest _";
109 } elsif ($_ eq 'print') {
110 $out .= &tab . 'print("$name\n")';
111 } elsif ($_ eq 'print0') {
112 $out .= &tab . 'print("$name\0")';
113 } elsif ($_ eq 'fstype') {
114 my $type = shift;
115 $out .= &tab;
116 if ($type eq 'nfs') {
117 $out .= '($dev < 0)';
118 } else {
119 $out .= '($dev >= 0)'; #XXX
120 }
121 } elsif ($_ eq 'user') {
122 my $uname = shift;
123 $out .= &tab . "(\$uid == \$uid{'$uname'})";
124 $init{user} = 1;
125 } elsif ($_ eq 'group') {
126 my $gname = shift;
127 $out .= &tab . "(\$gid == \$gid{'$gname'})";
128 $init{group} = 1;
129 } elsif ($_ eq 'nouser') {
130 $out .= &tab . '!exists $uid{$uid}';
131 $init{user} = 1;
132 } elsif ($_ eq 'nogroup') {
133 $out .= &tab . '!exists $gid{$gid}';
134 $init{group} = 1;
135 } elsif ($_ eq 'links') {
136 $out .= &tab . &n('$nlink', shift);
137 } elsif ($_ eq 'inum') {
138 $out .= &tab . &n('$ino', shift);
139 } elsif ($_ eq 'size') {
140 $_ = shift;
141 my $n = 'int(((-s _) + 511) / 512)';
c7b9dd21 142 if (s/c\z//) {
431613dd 143 $n = 'int(-s _)';
c7b9dd21 144 } elsif (s/k\z//) {
431613dd 145 $n = 'int(((-s _) + 1023) / 1024)';
146 }
147 $out .= &tab . &n($n, $_);
148 } elsif ($_ eq 'atime') {
149 $out .= &tab . &n('int(-A _)', shift);
150 } elsif ($_ eq 'mtime') {
151 $out .= &tab . &n('int(-M _)', shift);
152 } elsif ($_ eq 'ctime') {
153 $out .= &tab . &n('int(-C _)', shift);
154 } elsif ($_ eq 'exec') {
155 my @cmd = ();
156 while (@ARGV && $ARGV[0] ne ';')
157 { push(@cmd, shift) }
158 shift;
159 $out .= &tab;
160 if ($cmd[0] =~m#^(?:(?:/usr)?/bin/)?rm$#
161 && $cmd[$#cmd] eq '{}'
162 && (@cmd == 2 || (@cmd == 3 && $cmd[1] eq '-f'))) {
163 if (@cmd == 2) {
164 $out .= '(unlink($_) || warn "$name: $!\n")';
165 } elsif (!@ARGV) {
166 $out .= 'unlink($_)';
167 } else {
168 $out .= '(unlink($_) || 1)';
169 }
170 } else {
171 for (@cmd)
172 { s/'/\\'/g }
173 { local $" = "','"; $out .= "&doexec(0, '@cmd')"; }
174 $init{doexec} = 1;
175 }
176 } elsif ($_ eq 'ok') {
177 my @cmd = ();
178 while (@ARGV && $ARGV[0] ne ';')
179 { push(@cmd, shift) }
180 shift;
181 $out .= &tab;
182 for (@cmd)
183 { s/'/\\'/g }
184 { local $" = "','"; $out .= "&doexec(0, '@cmd')"; }
185 $init{doexec} = 1;
186 } elsif ($_ eq 'prune') {
187 $out .= &tab . '($File::Find::prune = 1)';
188 } elsif ($_ eq 'xdev') {
189 $out .= &tab . '!($File::Find::prune |= ($dev != $File::Find::topdev))'
190;
191 } elsif ($_ eq 'newer') {
192 my $file = shift;
193 my $newername = 'AGE_OF' . $file;
194 $newername =~ s/\W/_/g;
195 $newername = '$' . $newername;
196 $out .= &tab . "(-M _ < $newername)";
197 $initnewer .= "my $newername = -M " . &quote($file) . ";\n";
198 } elsif ($_ eq 'eval') {
199 my $prog = shift;
200 $prog =~ s/'/\\'/g;
201 $out .= &tab . "eval {$prog}";
202 } elsif ($_ eq 'depth') {
203 $find = 'finddepth';
204 next;
205 } elsif ($_ eq 'ls') {
206 $out .= &tab . "&ls";
207 $init{ls} = 1;
208 } elsif ($_ eq 'tar') {
209 die "-tar must have a filename argument\n" unless @ARGV;
210 my $file = shift;
211 my $fh = 'FH' . $file;
212 $fh =~ s/\W/_/g;
213 $out .= &tab . "&tar(*$fh, \$name)";
214 $flushall .= "&tflushall;\n";
215 $initfile .= "open($fh, " . &quote('> ' . $file) .
216 qq{) || die "Can't open $fh: \$!\\n";\n};
217 $init{tar} = 1;
c7b9dd21 218 } elsif (/^(n?)cpio\z/) {
431613dd 219 die "-$_ must have a filename argument\n" unless @ARGV;
220 my $file = shift;
221 my $fh = 'FH' . $file;
222 $fh =~ s/\W/_/g;
223 $out .= &tab . "&cpio(*$fh, \$name, '$1')";
224 $find = 'finddepth';
225 $flushall .= "&cflushall;\n";
226 $initfile .= "open($fh, " . &quote('> ' . $file) .
227 qq{) || die "Can't open $fh: \$!\\n";\n};
228 $init{cpio} = 1;
229 } else {
230 die "Unrecognized switch: -$_\n";
fe14fcc3 231 }
431613dd 232
fe14fcc3 233 if (@ARGV) {
431613dd 234 if ($ARGV[0] eq '-o') {
235 { local($statdone) = 1; $out .= "\n" . &tab . "||\n"; }
236 $statdone = 0 if $indent_depth == 1 && exists $init{delayedstat};
237 $init{saw_or} = 1;
238 shift;
239 } else {
3d1e7443 240 $out .= " &&" unless $Skip_And || $ARGV[0] eq ')';
431613dd 241 $out .= "\n";
242 shift if $ARGV[0] eq '-a';
243 }
fe14fcc3 244 }
245}
246
431613dd 247
fe14fcc3 248print <<"END";
4633a7c4 249$startperl
5f05dabc 250 eval 'exec $perlpath -S \$0 \${1+"\$@"}'
431613dd 251 if 0; #\$running_under_some_shell
252
253use strict;
254use File::Find ();
255
256# Set the variable \$File::Find::dont_use_nlink if you're using AFS,
257# since AFS cheats.
258
259# for the convenience of &wanted calls, including -eval statements:
260use vars qw/*name *dir *prune/;
261*name = *File::Find::name;
262*dir = *File::Find::dir;
263*prune = *File::Find::prune;
8adcabd8 264
fe14fcc3 265END
266
431613dd 267
268if (exists $init{ls}) {
fe14fcc3 269 print <<'END';
431613dd 270my @rwx = qw(--- --x -w- -wx r-- r-x rw- rwx);
271my @moname = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
fe14fcc3 272
273END
274}
275
431613dd 276if (exists $init{user} || exists $init{ls} || exists $init{tar}) {
277 print "my (%uid, %user);\n";
278 print "while (my (\$name, \$pw, \$uid) = getpwent) {\n";
279 print ' $uid{$name} = $uid{$uid} = $uid;', "\n"
280 if exists $init{user};
281 print ' $user{$uid} = $name unless exists $user{$uid};', "\n"
282 if exists $init{ls} || exists $init{tar};
fe14fcc3 283 print "}\n\n";
284}
285
431613dd 286if (exists $init{group} || exists $init{ls} || exists $init{tar}) {
287 print "my (%gid, %group);\n";
288 print "while (my (\$name, \$pw, \$gid) = getgrent) {\n";
289 print ' $gid{$name} = $gid{$gid} = $gid;', "\n"
290 if exists $init{group};
291 print ' $group{$gid} = $name unless exists $group{$gid};', "\n"
292 if exists $init{ls} || exists $init{tar};
fe14fcc3 293 print "}\n\n";
294}
295
431613dd 296print $initnewer, "\n" if $initnewer ne '';
297print $initfile, "\n" if $initfile ne '';
298$flushall .= "exit;\n";
299if (exists $init{declarestat}) {
300 $out = <<'END' . $out;
301 my ($dev,$ino,$mode,$nlink,$uid,$gid);
fe14fcc3 302
431613dd 303END
304}
fe14fcc3 305
3d1e7443 306if ( $follow_in_effect ) {
307$out =~ s/lstat\(\$_\)/lstat(_)/;
fe14fcc3 308print <<"END";
7b8d334a 309$decl
431613dd 310# Traverse desired filesystems
3d1e7443 311File::Find::$find( {wanted => \\&wanted, follow => 1}, $roots);
fe14fcc3 312$flushall
431613dd 313
fe14fcc3 314sub wanted {
315$out;
316}
317
318END
3d1e7443 319} else {
320print <<"END";
321$decl
322# Traverse desired filesystems
323File::Find::$find({wanted => \\&wanted}, $roots);
324$flushall
fe14fcc3 325
3d1e7443 326sub wanted {
327$out;
328}
329
330END
331}
431613dd 332
333if (exists $init{doexec}) {
fe14fcc3 334 print <<'END';
431613dd 335
336BEGIN {
337 require Cwd;
338 my $cwd = Cwd::cwd();
339}
340
341sub doexec {
342 my $ok = shift;
343 for my $word (@_)
344 { $word =~ s#{}#$name#g }
fe14fcc3 345 if ($ok) {
431613dd 346 my $old = select(STDOUT);
347 $| = 1;
348 print "@_";
349 select($old);
350 return 0 unless <STDIN> =~ /^y/;
351 }
352 chdir $cwd; #sigh
353 system @_;
354 chdir $File::Find::dir;
fe14fcc3 355 return !$?;
356}
357
358END
359}
360
431613dd 361if (exists $init{ls}) {
362 print <<'INTRO', <<"SUB", <<'END';
fe14fcc3 363
431613dd 364sub sizemm {
365 my $rdev = shift;
366 sprintf("%3d, %3d", ($rdev >> 8) & 0xff, $rdev & 0xff);
367}
fe14fcc3 368
431613dd 369sub ls {
370 my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
371INTRO
372 \$atime,\$mtime,\$ctime,\$blksize,\$blocks) = $stat(_);
373SUB
374 my $pname = $name;
375
376 $blocks
377 or $blocks = int(($size + 1023) / 1024);
378
379 my $perms = $rwx[$mode & 7];
380 $mode >>= 3;
381 $perms = $rwx[$mode & 7] . $perms;
382 $mode >>= 3;
383 $perms = $rwx[$mode & 7] . $perms;
384 substr($perms, 2, 1) =~ tr/-x/Ss/ if -u _;
385 substr($perms, 5, 1) =~ tr/-x/Ss/ if -g _;
386 substr($perms, 8, 1) =~ tr/-x/Tt/ if -k _;
387 if (-f _) { $perms = '-' . $perms; }
388 elsif (-d _) { $perms = 'd' . $perms; }
389 elsif (-l _) { $perms = 'l' . $perms; $pname .= ' -> ' . readlink($_); }
390 elsif (-c _) { $perms = 'c' . $perms; $size = sizemm($rdev); }
391 elsif (-b _) { $perms = 'b' . $perms; $size = sizemm($rdev); }
392 elsif (-p _) { $perms = 'p' . $perms; }
393 elsif (-S _) { $perms = 's' . $perms; }
394 else { $perms = '?' . $perms; }
395
396 my $user = $user{$uid} || $uid;
397 my $group = $group{$gid} || $gid;
398
399 my ($sec,$min,$hour,$mday,$mon,$timeyear) = localtime($mtime);
fe14fcc3 400 if (-M _ > 365.25 / 2) {
431613dd 401 $timeyear += 1900;
402 } else {
403 $timeyear = sprintf("%02d:%02d", $hour, $min);
404 }
405
406 printf "%5lu %4ld %-10s %3d %-8s %-8s %8s %s %2d %5s %s\n",
407 $ino,
408 $blocks,
409 $perms,
410 $nlink,
411 $user,
412 $group,
413 $size,
414 $moname[$mon],
415 $mday,
416 $timeyear,
417 $pname;
fe14fcc3 418 1;
419}
420
431613dd 421END
422}
423
424
425if (exists $init{cpio} || exists $init{tar}) {
426print <<'END';
427
428my %blocks = ();
429
430sub flush {
431 my ($fh, $varref, $blksz) = @_;
432
433 while (length($$varref) >= $blksz) {
434 no strict qw/refs/;
435 syswrite($fh, $$varref, $blksz);
436 substr($$varref, 0, $blksz) = '';
437 ++$blocks{$fh};
438 }
fe14fcc3 439}
440
441END
442}
443
fe14fcc3 444
431613dd 445if (exists $init{cpio}) {
446 print <<'INTRO', <<"SUB", <<'END';
447
448my %cpout = ();
449my %nc = ();
fe14fcc3 450
431613dd 451sub cpio {
452 my ($fh, $fname, $nc) = @_;
453 my $text = '';
454 my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
455 $atime,$mtime,$ctime,$blksize,$blocks);
456 local (*IN);
457
458 if ( ! defined $fname ) {
459 $fname = 'TRAILER!!!';
460 ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
461 $atime,$mtime,$ctime,$blksize,$blocks) = (0) x 13;
462 } else {
463 ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
464INTRO
465 \$atime,\$mtime,\$ctime,\$blksize,\$blocks) = $stat(_);
466SUB
467 if (-f _) {
468 open(IN, "./$_\0") || do {
469 warn "Couldn't open $fname: $!\n";
470 return;
471 }
472 } else {
473 $text = readlink($_);
474 $size = 0 unless defined $text;
475 }
476 }
477
478 $fname =~ s#^\./##;
fe14fcc3 479 $nc{$fh} = $nc;
480 if ($nc eq 'n') {
431613dd 481 $cpout{$fh} .=
482 sprintf("%06o%06o%06o%06o%06o%06o%06o%06o%011lo%06o%011lo%s\0",
483 070707,
484 $dev & 0777777,
485 $ino & 0777777,
486 $mode & 0777777,
487 $uid & 0777777,
488 $gid & 0777777,
489 $nlink & 0777777,
490 $rdev & 0177777,
491 $mtime,
492 length($fname)+1,
493 $size,
494 $fname);
495 } else {
496 $cpout{$fh} .= "\0" if length($cpout{$fh}) & 1;
497 $cpout{$fh} .= pack("SSSSSSSSLSLa*",
498 070707, $dev, $ino, $mode, $uid, $gid, $nlink, $rdev, $mtime,
499 length($fname)+1, $size,
500 $fname . (length($fname) & 1 ? "\0" : "\0\0"));
fe14fcc3 501 }
fe14fcc3 502
431613dd 503 if ($text ne '') {
504 $cpout{$fh} .= $text;
505 } elsif ($size) {
506 my $l;
507 flush($fh, \$cpout{$fh}, 5120)
508 while ($l = length($cpout{$fh})) >= 5120;
509 while (sysread(IN, $cpout{$fh}, 5120 - $l, $l)) {
510 flush($fh, \$cpout{$fh}, 5120);
511 $l = length($cpout{$fh});
512 }
513 close IN;
fe14fcc3 514 }
515}
516
431613dd 517sub cflushall {
518 for my $fh (keys %cpout) {
519 &cpio($fh, undef, $nc{$fh});
520 $cpout{$fh} .= "0" x (5120 - length($cpout{$fh}));
521 flush($fh, \$cpout{$fh}, 5120);
522 print $blocks{$fh} * 10, " blocks\n";
fe14fcc3 523 }
524}
525
526END
527}
528
431613dd 529if (exists $init{tar}) {
530 print <<'INTRO', <<"SUB", <<'END';
531
532my %tarout = ();
533my %linkseen = ();
534
fe14fcc3 535sub tar {
431613dd 536 my ($fh, $fname) = @_;
537 my $prefix = '';
538 my $typeflag = '0';
539 my $linkname;
540 my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
541INTRO
542 \$atime,\$mtime,\$ctime,\$blksize,\$blocks) = $stat(_);
543SUB
544 local (*IN);
fe14fcc3 545
431613dd 546 if ($nlink > 1) {
547 if ($linkname = $linkseen{$fh, $dev, $ino}) {
548 if (length($linkname) > 100) {
549 warn "$0: omitting file with linkname ",
550 "too long for tar output: $linkname\n";
551 return;
552 }
553 $typeflag = '1';
554 $size = 0;
555 } else {
556 $linkseen{$fh, $dev, $ino} = $fname;
557 }
558 }
559 if ($typeflag eq '0') {
560 if (-f _) {
561 open(IN, "./$_\0") || do {
562 warn "Couldn't open $fname: $!\n";
563 return;
564 }
565 } else {
566 $linkname = readlink($_);
567 if (defined $linkname) { $typeflag = '2' }
568 elsif (-c _) { $typeflag = '3' }
569 elsif (-b _) { $typeflag = '4' }
570 elsif (-d _) { $typeflag = '5' }
571 elsif (-p _) { $typeflag = '6' }
572 }
573 }
574
575 if (length($fname) > 100) {
576 ($prefix, $fname) = ($fname =~ m#\A(.*?)/(.{,100})\Z(?!\n)#);
577 if (!defined($fname) || length($prefix) > 155) {
578 warn "$0: omitting file with name too long for tar output: ",
579 $fname, "\n";
580 return;
581 }
582 }
583
584 $size = 0 if $typeflag ne '0';
585 my $header = pack("a100a8a8a8a12a12a8a1a100a6a2a32a32a8a8a155",
586 $fname,
587 sprintf("%7o ", $mode & 0777),
588 sprintf("%7o ", $uid & 0777777),
589 sprintf("%7o ", $gid & 0777777),
590 sprintf("%11o ", $size),
591 sprintf("%11o ", $mtime),
592 ' 'x8,
593 $typeflag,
594 defined $linkname ? $linkname : '',
595 "ustar\0",
596 "00",
597 $user{$uid},
598 $group{$gid},
599 ($rdev >> 8) & 0xff,
600 $rdev & 0xff,
601 $prefix,
602 );
603 substr($header, 148, 8) = sprintf("%7o ", unpack("%16C*", $header));
604 my $l = length($header) % 512;
fe14fcc3 605 $tarout{$fh} .= $header;
606 $tarout{$fh} .= "\0" x (512 - $l) if $l;
fe14fcc3 607
431613dd 608 if ($size) {
609 flush($fh, \$tarout{$fh}, 10240)
610 while ($l = length($tarout{$fh})) >= 10240;
611 while (sysread(IN, $tarout{$fh}, 10240 - $l, $l)) {
612 my $slop = length($tarout{$fh}) % 512;
613 $tarout{$fh} .= "\0" x (512 - $slop) if $slop;
614 flush($fh, \$tarout{$fh}, 10240);
615 $l = length($tarout{$fh});
616 }
617 close IN;
fe14fcc3 618 }
619}
620
621sub tflushall {
431613dd 622 my $len;
623 for my $fh (keys %tarout) {
624 $len = 10240 - length($tarout{$fh});
625 $len += 10240 if $len < 1024;
626 $tarout{$fh} .= "\0" x $len;
627 flush($fh, \$tarout{$fh}, 10240);
fe14fcc3 628 }
629}
630
631END
632}
633
634exit;
635
636############################################################################
637
638sub tab {
431613dd 639 my $tabstring;
fe14fcc3 640
431613dd 641 $tabstring = "\t" x ($indent_depth/2) . ' ' x ($indent_depth%2 * 4);
1c3d792e 642 if (!$statdone) {
431613dd 643 if ($_ =~ /^(?:name|print|prune|exec|ok|\(|\))/) {
644 $init{delayedstat} = 1;
645 } else {
646 my $statcall = '(($dev,$ino,$mode,$nlink,$uid,$gid) = '
647 . $stat . '($_))';
648 if (exists $init{saw_or}) {
649 $tabstring .= "(\$nlink || $statcall) &&\n" . $tabstring;
650 } else {
651 $tabstring .= "$statcall &&\n" . $tabstring;
652 }
653 $statdone = 1;
654 $init{declarestat} = 1;
655 }
fe14fcc3 656 }
657 $tabstring =~ s/^\s+/ / if $out =~ /!$/;
658 $tabstring;
659}
660
661sub fileglob_to_re {
431613dd 662 my $x = shift;
663 $x =~ s#([./^\$()])#\\$1#g;
664 $x =~ s#([?*])#.$1#g;
c7b9dd21 665 "^$x\\z";
fe14fcc3 666}
667
668sub n {
431613dd 669 my ($pre, $n) = @_;
1c3d792e 670 $n =~ s/^-/< / || $n =~ s/^\+/> / || $n =~ s/^/== /;
671 $n =~ s/ 0*(\d)/ $1/;
431613dd 672 "($pre $n)";
fe14fcc3 673}
674
675sub quote {
431613dd 676 my $string = shift;
677 $string =~ s/'/\\'/g;
fe14fcc3 678 "'$string'";
679}
431613dd 680
681__END__
682
683=head1 NAME
684
685find2perl - translate find command lines to Perl code
686
687=head1 SYNOPSIS
688
689 find2perl [paths] [predicates] | perl
690
691=head1 DESCRIPTION
692
693find2perl is a little translator to convert find command lines to
694equivalent Perl code. The resulting code is typically faster than
695running find itself.
696
697"paths" are a set of paths where find2perl will start its searches and
698"predicates" are taken from the following list.
699
700=over 4
701
702=item C<! PREDICATE>
703
704Negate the sense of the following predicate. The C<!> must be passed as
705a distinct argument, so it may need to be surrounded by whitespace and/or
706quoted from interpretation by the shell using a backslash (just as with
707using C<find(1)>).
708
709=item C<( PREDICATES )>
710
711Group the given PREDICATES. The parentheses must be passed as distinct
712arguments, so they may need to be surrounded by whitespace and/or
713quoted from interpretation by the shell using a backslash (just as with
714using C<find(1)>).
715
716=item C<PREDICATE1 PREDICATE2>
717
718True if _both_ PREDICATE1 and PREDICATE2 are true; PREDICATE2 is not
719evaluated if PREDICATE1 is false.
720
721=item C<PREDICATE1 -o PREDICATE2>
722
723True if either one of PREDICATE1 or PREDICATE2 is true; PREDICATE2 is
724not evaluated if PREDICATE1 is true.
725
726=item C<-follow>
727
3d1e7443 728Follow (dereference) symlinks. The checking of file attributes depends
729on the position of the C<-follow> option. If it precedes the file
730check option, an C<stat> is done which means the file check applies to the
731file the symbolic link is pointing to. If C<-follow> option follows the
732file check option, this now applies to the symbolic link itself, i.e.
733an C<lstat> is done.
431613dd 734
735=item C<-depth>
736
737Change directory traversal algorithm from breadth-first to depth-first.
738
739=item C<-prune>
740
741Do not descend into the directory currently matched.
742
743=item C<-xdev>
744
745Do not traverse mount points (prunes search at mount-point directories).
746
747=item C<-name GLOB>
748
749File name matches specified GLOB wildcard pattern. GLOB may need to be
750quoted to avoid interpretation by the shell (just as with using
751C<find(1)>).
752
753=item C<-perm PERM>
754
755Low-order 9 bits of permission match octal value PERM.
756
757=item C<-perm -PERM>
758
759The bits specified in PERM are all set in file's permissions.
760
761=item C<-type X>
762
763The file's type matches perl's C<-X> operator.
764
765=item C<-fstype TYPE>
766
767Filesystem of current path is of type TYPE (only NFS/non-NFS distinction
768is implemented).
769
770=item C<-user USER>
771
772True if USER is owner of file.
773
774=item C<-group GROUP>
775
776True if file's group is GROUP.
777
778=item C<-nouser>
779
780True if file's owner is not in password database.
781
782=item C<-nogroup>
783
784True if file's group is not in group database.
785
786=item C<-inum INUM>
787
788True file's inode number is INUM.
789
790=item C<-links N>
791
792True if (hard) link count of file matches N (see below).
793
794=item C<-size N>
795
796True if file's size matches N (see below) N is normally counted in
797512-byte blocks, but a suffix of "c" specifies that size should be
798counted in characters (bytes) and a suffix of "k" specifes that
799size should be counted in 1024-byte blocks.
800
801=item C<-atime N>
802
803True if last-access time of file matches N (measured in days) (see
804below).
805
806=item C<-ctime N>
807
808True if last-changed time of file's inode matches N (measured in days,
809see below).
810
811=item C<-mtime N>
812
813True if last-modified time of file matches N (measured in days, see below).
814
815=item C<-newer FILE>
816
817True if last-modified time of file matches N.
818
819=item C<-print>
820
821Print out path of file (always true).
822
823=item C<-print0>
824
825Like -print, but terminates with \0 instead of \n.
826
827=item C<-exec OPTIONS ;>
828
829exec() the arguments in OPTIONS in a subprocess; any occurence of {} in
830OPTIONS will first be substituted with the path of the current
831file. Note that the command "rm" has been special-cased to use perl's
832unlink() function instead (as an optimization). The C<;> must be passed as
833a distinct argument, so it may need to be surrounded by whitespace and/or
834quoted from interpretation by the shell using a backslash (just as with
835using C<find(1)>).
836
837=item C<-ok OPTIONS ;>
838
839Like -exec, but first prompts user; if user's response does not begin
840with a y, skip the exec. The C<;> must be passed as
841a distinct argument, so it may need to be surrounded by whitespace and/or
842quoted from interpretation by the shell using a backslash (just as with
843using C<find(1)>).
844
928e06a6 845=item C<-eval EXPR>
431613dd 846
928e06a6 847Has the perl script eval() the EXPR.
431613dd 848
849=item C<-ls>
850
851Simulates C<-exec ls -dils {} ;>
852
853=item C<-tar FILE>
854
855Adds current output to tar-format FILE.
856
857=item C<-cpio FILE>
858
859Adds current output to old-style cpio-format FILE.
860
861=item C<-ncpio FILE>
862
863Adds current output to "new"-style cpio-format FILE.
864
865=back
866
867Predicates which take a numeric argument N can come in three forms:
868
869 * N is prefixed with a +: match values greater than N
870 * N is prefixed with a -: match values less than N
871 * N is not prefixed with either + or -: match only values equal to N
872
431613dd 873=head1 SEE ALSO
874
875find
876
877=cut
fe14fcc3 878!NO!SUBS!
4633a7c4 879
880close OUT or die "Can't close $file: $!";
881chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
882exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';
8a5546a1 883chdir $origdir;