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Fix for [perl #28963]: find2perl was sometimes generating
[perl5.git] / x2p / find2perl.PL
CommitLineData
4633a7c4
LW
1#!/usr/local/bin/perl
2
3use Config;
4use File::Basename qw(&basename &dirname);
8a5546a1 5use Cwd;
4633a7c4
LW
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
PP
17chdir dirname($0);
18$file = basename($0, '.PL');
774d564b 19$file .= '.com' if $^O eq 'VMS';
4633a7c4
LW
20
21open OUT,">$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 $Config{...} to use Configure variables.
27
28print OUT <<"!GROK!THIS!";
5f05dabc
PP
29$Config{startperl}
30 eval 'exec $Config{perlpath} -S \$0 \${1+"\$@"}'
7b8d334a 31 if \$running_under_some_shell;
ed6d8ea1
JH
32(my \$perlpath = <<'/../') =~ s/\\s*\\z//;
33$Config{perlpath}
34/../
4633a7c4
LW
35!GROK!THIS!
36
37# In the following, perl variables are not expanded during extraction.
38
39print OUT <<'!NO!SUBS!';
431613dd
GS
40use strict;
41use vars qw/$statdone/;
2305df61 42use File::Spec::Functions 'curdir';
431613dd 43my $startperl = "#! $perlpath -w";
7b8d334a 44
431613dd 45#
93a17b20
LW
46# Modified September 26, 1993 to provide proper handling of years after 1999
47# Tom Link <tml+@pitt.edu>
48# University of Pittsburgh
431613dd 49#
7b8d334a
GS
50# Modified April 7, 1998 with nasty hacks to implement the troublesome -follow
51# Billy Constantine <wdconsta@cs.adelaide.edu.au> <billy@smug.adelaide.edu.au>
52# University of Adelaide, Adelaide, South Australia
431613dd
GS
53#
54# Modified 1999-06-10, 1999-07-07 to migrate to cleaner perl5 usage
55# Ken Pizzini <ken@halcyon.com>
3d1e7443
GS
56#
57# Modified 2000-01-28 to use the 'follow' option of File::Find
fe14fcc3 58
572330a4
PN
59sub tab ();
60sub n ($$);
61sub fileglob_to_re ($);
62sub quote ($);
63
431613dd 64my @roots = ();
fe14fcc3
LW
65while ($ARGV[0] =~ /^[^-!(]/) {
66 push(@roots, shift);
67}
2305df61 68@roots = (curdir()) unless @roots;
572330a4 69for (@roots) { $_ = quote($_) }
431613dd
GS
70my $roots = join(', ', @roots);
71
72my $find = "find";
73my $indent_depth = 1;
74my $stat = 'lstat';
75my $decl = '';
76my $flushall = '';
77my $initfile = '';
78my $initnewer = '';
79my $out = '';
572330a4 80my $declaresubs = "sub wanted;\n";
431613dd 81my %init = ();
3d1e7443 82my ($follow_in_effect,$Skip_And) = (0,0);
9c4673c1 83my $print_needed = 1;
fe14fcc3
LW
84
85while (@ARGV) {
86 $_ = shift;
87 s/^-// || /^[()!]/ || die "Unrecognized switch: $_\n";
88 if ($_ eq '(') {
572330a4 89 $out .= tab . "(\n";
431613dd
GS
90 $indent_depth++;
91 next;
92 } elsif ($_ eq ')') {
93 --$indent_depth;
572330a4 94 $out .= tab . ")";
431613dd 95 } elsif ($_ eq 'follow') {
3d1e7443 96 $follow_in_effect= 1;
431613dd 97 $stat = 'stat';
3d1e7443 98 $Skip_And= 1;
431613dd 99 } elsif ($_ eq '!') {
572330a4 100 $out .= tab . "!";
431613dd
GS
101 next;
102 } elsif ($_ eq 'name') {
572330a4 103 $out .= tab . '/' . fileglob_to_re(shift) . "/s";
431613dd
GS
104 } elsif ($_ eq 'perm') {
105 my $onum = shift;
106 $onum =~ /^-?[0-7]+$/
107 || die "Malformed -perm argument: $onum\n";
572330a4 108 $out .= tab;
431613dd
GS
109 if ($onum =~ s/^-//) {
110 $onum = sprintf("0%o", oct($onum) & 07777);
111 $out .= "((\$mode & $onum) == $onum)";
112 } else {
113 $onum =~ s/^0*/0/;
114 $out .= "((\$mode & 0777) == $onum)";
115 }
116 } elsif ($_ eq 'type') {
117 (my $filetest = shift) =~ tr/s/S/;
572330a4 118 $out .= tab . "-$filetest _";
431613dd 119 } elsif ($_ eq 'print') {
572330a4 120 $out .= tab . 'print("$name\n")';
9c4673c1 121 $print_needed = 0;
431613dd 122 } elsif ($_ eq 'print0') {
572330a4 123 $out .= tab . 'print("$name\0")';
9c4673c1 124 $print_needed = 0;
431613dd
GS
125 } elsif ($_ eq 'fstype') {
126 my $type = shift;
572330a4 127 $out .= tab;
431613dd
GS
128 if ($type eq 'nfs') {
129 $out .= '($dev < 0)';
130 } else {
131 $out .= '($dev >= 0)'; #XXX
132 }
133 } elsif ($_ eq 'user') {
134 my $uname = shift;
572330a4 135 $out .= tab . "(\$uid == \$uid{'$uname'})";
431613dd
GS
136 $init{user} = 1;
137 } elsif ($_ eq 'group') {
138 my $gname = shift;
572330a4 139 $out .= tab . "(\$gid == \$gid{'$gname'})";
431613dd
GS
140 $init{group} = 1;
141 } elsif ($_ eq 'nouser') {
572330a4 142 $out .= tab . '!exists $uid{$uid}';
431613dd
GS
143 $init{user} = 1;
144 } elsif ($_ eq 'nogroup') {
572330a4 145 $out .= tab . '!exists $gid{$gid}';
431613dd
GS
146 $init{group} = 1;
147 } elsif ($_ eq 'links') {
572330a4 148 $out .= tab . n('$nlink', shift);
431613dd 149 } elsif ($_ eq 'inum') {
572330a4 150 $out .= tab . n('$ino', shift);
431613dd
GS
151 } elsif ($_ eq 'size') {
152 $_ = shift;
153 my $n = 'int(((-s _) + 511) / 512)';
c7b9dd21 154 if (s/c\z//) {
431613dd 155 $n = 'int(-s _)';
c7b9dd21 156 } elsif (s/k\z//) {
431613dd
GS
157 $n = 'int(((-s _) + 1023) / 1024)';
158 }
572330a4 159 $out .= tab . n($n, $_);
431613dd 160 } elsif ($_ eq 'atime') {
572330a4 161 $out .= tab . n('int(-A _)', shift);
431613dd 162 } elsif ($_ eq 'mtime') {
572330a4 163 $out .= tab . n('int(-M _)', shift);
431613dd 164 } elsif ($_ eq 'ctime') {
572330a4 165 $out .= tab . n('int(-C _)', shift);
431613dd
GS
166 } elsif ($_ eq 'exec') {
167 my @cmd = ();
168 while (@ARGV && $ARGV[0] ne ';')
169 { push(@cmd, shift) }
170 shift;
572330a4 171 $out .= tab;
431613dd
GS
172 if ($cmd[0] =~m#^(?:(?:/usr)?/bin/)?rm$#
173 && $cmd[$#cmd] eq '{}'
174 && (@cmd == 2 || (@cmd == 3 && $cmd[1] eq '-f'))) {
175 if (@cmd == 2) {
176 $out .= '(unlink($_) || warn "$name: $!\n")';
177 } elsif (!@ARGV) {
178 $out .= 'unlink($_)';
179 } else {
180 $out .= '(unlink($_) || 1)';
181 }
182 } else {
183 for (@cmd)
184 { s/'/\\'/g }
572330a4
PN
185 { local $" = "','"; $out .= "doexec(0, '@cmd')"; }
186 $declaresubs .= "sub doexec (\$\@);\n";
431613dd
GS
187 $init{doexec} = 1;
188 }
9c4673c1 189 $print_needed = 0;
431613dd
GS
190 } elsif ($_ eq 'ok') {
191 my @cmd = ();
192 while (@ARGV && $ARGV[0] ne ';')
193 { push(@cmd, shift) }
194 shift;
572330a4 195 $out .= tab;
431613dd
GS
196 for (@cmd)
197 { s/'/\\'/g }
b739a87e 198 { local $" = "','"; $out .= "doexec(1, '@cmd')"; }
572330a4 199 $declaresubs .= "sub doexec (\$\@);\n";
431613dd 200 $init{doexec} = 1;
9c4673c1 201 $print_needed = 0;
431613dd 202 } elsif ($_ eq 'prune') {
572330a4 203 $out .= tab . '($File::Find::prune = 1)';
431613dd 204 } elsif ($_ eq 'xdev') {
572330a4 205 $out .= tab . '!($File::Find::prune |= ($dev != $File::Find::topdev))'
431613dd
GS
206;
207 } elsif ($_ eq 'newer') {
208 my $file = shift;
209 my $newername = 'AGE_OF' . $file;
210 $newername =~ s/\W/_/g;
211 $newername = '$' . $newername;
572330a4
PN
212 $out .= tab . "(-M _ < $newername)";
213 $initnewer .= "my $newername = -M " . quote($file) . ";\n";
431613dd
GS
214 } elsif ($_ eq 'eval') {
215 my $prog = shift;
216 $prog =~ s/'/\\'/g;
572330a4 217 $out .= tab . "eval {$prog}";
a9a4ee8b 218 $print_needed = 0;
431613dd
GS
219 } elsif ($_ eq 'depth') {
220 $find = 'finddepth';
221 next;
222 } elsif ($_ eq 'ls') {
572330a4
PN
223 $out .= tab . "ls";
224 $declaresubs .= "sub ls ();\n";
431613dd 225 $init{ls} = 1;
9c4673c1 226 $print_needed = 0;
431613dd
GS
227 } elsif ($_ eq 'tar') {
228 die "-tar must have a filename argument\n" unless @ARGV;
229 my $file = shift;
230 my $fh = 'FH' . $file;
231 $fh =~ s/\W/_/g;
572330a4
PN
232 $out .= tab . "tar(*$fh, \$name)";
233 $flushall .= "tflushall;\n";
234 $declaresubs .= "sub tar;\nsub tflushall ();\n";
235 $initfile .= "open($fh, " . quote('> ' . $file) .
431613dd
GS
236 qq{) || die "Can't open $fh: \$!\\n";\n};
237 $init{tar} = 1;
c7b9dd21 238 } elsif (/^(n?)cpio\z/) {
431613dd
GS
239 die "-$_ must have a filename argument\n" unless @ARGV;
240 my $file = shift;
241 my $fh = 'FH' . $file;
242 $fh =~ s/\W/_/g;
572330a4 243 $out .= tab . "cpio(*$fh, \$name, '$1')";
431613dd 244 $find = 'finddepth';
572330a4
PN
245 $flushall .= "cflushall;\n";
246 $declaresubs .= "sub cpio;\nsub cflushall ();\n";
247 $initfile .= "open($fh, " . quote('> ' . $file) .
431613dd
GS
248 qq{) || die "Can't open $fh: \$!\\n";\n};
249 $init{cpio} = 1;
250 } else {
251 die "Unrecognized switch: -$_\n";
fe14fcc3 252 }
431613dd 253
fe14fcc3 254 if (@ARGV) {
431613dd 255 if ($ARGV[0] eq '-o') {
572330a4 256 { local($statdone) = 1; $out .= "\n" . tab . "||\n"; }
431613dd
GS
257 $statdone = 0 if $indent_depth == 1 && exists $init{delayedstat};
258 $init{saw_or} = 1;
259 shift;
260 } else {
3d1e7443 261 $out .= " &&" unless $Skip_And || $ARGV[0] eq ')';
431613dd
GS
262 $out .= "\n";
263 shift if $ARGV[0] eq '-a';
264 }
fe14fcc3
LW
265 }
266}
267
9c4673c1 268if ($print_needed) {
178eb895
RGS
269 my $t = tab;
270 if ($t !~ /&&\s*$/) { $t .= '&& ' }
271 $out .= "\n" . $t . 'print("$name\n")';
9c4673c1
SR
272}
273
431613dd 274
fe14fcc3 275print <<"END";
4633a7c4 276$startperl
5f05dabc 277 eval 'exec $perlpath -S \$0 \${1+"\$@"}'
431613dd
GS
278 if 0; #\$running_under_some_shell
279
280use strict;
281use File::Find ();
282
283# Set the variable \$File::Find::dont_use_nlink if you're using AFS,
284# since AFS cheats.
285
286# for the convenience of &wanted calls, including -eval statements:
287use vars qw/*name *dir *prune/;
288*name = *File::Find::name;
289*dir = *File::Find::dir;
290*prune = *File::Find::prune;
8adcabd8 291
572330a4 292$declaresubs
fe14fcc3 293
572330a4 294END
431613dd 295
7cc8f688 296if (exists $init{doexec}) {
297 print <<'END';
298use Cwd ();
299my $cwd = Cwd::cwd();
300
301END
302}
303
431613dd 304if (exists $init{ls}) {
fe14fcc3 305 print <<'END';
431613dd
GS
306my @rwx = qw(--- --x -w- -wx r-- r-x rw- rwx);
307my @moname = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);
fe14fcc3
LW
308
309END
310}
311
431613dd
GS
312if (exists $init{user} || exists $init{ls} || exists $init{tar}) {
313 print "my (%uid, %user);\n";
314 print "while (my (\$name, \$pw, \$uid) = getpwent) {\n";
315 print ' $uid{$name} = $uid{$uid} = $uid;', "\n"
316 if exists $init{user};
317 print ' $user{$uid} = $name unless exists $user{$uid};', "\n"
318 if exists $init{ls} || exists $init{tar};
fe14fcc3
LW
319 print "}\n\n";
320}
321
431613dd
GS
322if (exists $init{group} || exists $init{ls} || exists $init{tar}) {
323 print "my (%gid, %group);\n";
324 print "while (my (\$name, \$pw, \$gid) = getgrent) {\n";
325 print ' $gid{$name} = $gid{$gid} = $gid;', "\n"
326 if exists $init{group};
327 print ' $group{$gid} = $name unless exists $group{$gid};', "\n"
328 if exists $init{ls} || exists $init{tar};
fe14fcc3
LW
329 print "}\n\n";
330}
331
431613dd
GS
332print $initnewer, "\n" if $initnewer ne '';
333print $initfile, "\n" if $initfile ne '';
334$flushall .= "exit;\n";
335if (exists $init{declarestat}) {
336 $out = <<'END' . $out;
337 my ($dev,$ino,$mode,$nlink,$uid,$gid);
fe14fcc3 338
431613dd
GS
339END
340}
fe14fcc3 341
3d1e7443
GS
342if ( $follow_in_effect ) {
343$out =~ s/lstat\(\$_\)/lstat(_)/;
fe14fcc3 344print <<"END";
7b8d334a 345$decl
431613dd 346# Traverse desired filesystems
3d1e7443 347File::Find::$find( {wanted => \\&wanted, follow => 1}, $roots);
fe14fcc3 348$flushall
431613dd 349
fe14fcc3
LW
350sub wanted {
351$out;
352}
353
354END
3d1e7443
GS
355} else {
356print <<"END";
357$decl
358# Traverse desired filesystems
359File::Find::$find({wanted => \\&wanted}, $roots);
360$flushall
fe14fcc3 361
3d1e7443
GS
362sub wanted {
363$out;
364}
365
366END
367}
431613dd
GS
368
369if (exists $init{doexec}) {
fe14fcc3 370 print <<'END';
431613dd 371
572330a4 372sub doexec ($@) {
431613dd 373 my $ok = shift;
572330a4
PN
374 my @command = @_; # copy so we don't try to s/// aliases to constants
375 for my $word (@command)
431613dd 376 { $word =~ s#{}#$name#g }
fe14fcc3 377 if ($ok) {
431613dd
GS
378 my $old = select(STDOUT);
379 $| = 1;
572330a4 380 print "@command";
431613dd
GS
381 select($old);
382 return 0 unless <STDIN> =~ /^y/;
383 }
384 chdir $cwd; #sigh
572330a4 385 system @command;
431613dd 386 chdir $File::Find::dir;
fe14fcc3
LW
387 return !$?;
388}
389
390END
391}
392
431613dd
GS
393if (exists $init{ls}) {
394 print <<'INTRO', <<"SUB", <<'END';
fe14fcc3 395
431613dd
GS
396sub sizemm {
397 my $rdev = shift;
398 sprintf("%3d, %3d", ($rdev >> 8) & 0xff, $rdev & 0xff);
399}
fe14fcc3 400
572330a4 401sub ls () {
431613dd
GS
402 my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
403INTRO
404 \$atime,\$mtime,\$ctime,\$blksize,\$blocks) = $stat(_);
405SUB
406 my $pname = $name;
407
408 $blocks
409 or $blocks = int(($size + 1023) / 1024);
410
411 my $perms = $rwx[$mode & 7];
412 $mode >>= 3;
413 $perms = $rwx[$mode & 7] . $perms;
414 $mode >>= 3;
415 $perms = $rwx[$mode & 7] . $perms;
416 substr($perms, 2, 1) =~ tr/-x/Ss/ if -u _;
417 substr($perms, 5, 1) =~ tr/-x/Ss/ if -g _;
418 substr($perms, 8, 1) =~ tr/-x/Tt/ if -k _;
419 if (-f _) { $perms = '-' . $perms; }
420 elsif (-d _) { $perms = 'd' . $perms; }
421 elsif (-l _) { $perms = 'l' . $perms; $pname .= ' -> ' . readlink($_); }
422 elsif (-c _) { $perms = 'c' . $perms; $size = sizemm($rdev); }
423 elsif (-b _) { $perms = 'b' . $perms; $size = sizemm($rdev); }
424 elsif (-p _) { $perms = 'p' . $perms; }
425 elsif (-S _) { $perms = 's' . $perms; }
426 else { $perms = '?' . $perms; }
427
428 my $user = $user{$uid} || $uid;
429 my $group = $group{$gid} || $gid;
430
431 my ($sec,$min,$hour,$mday,$mon,$timeyear) = localtime($mtime);
fe14fcc3 432 if (-M _ > 365.25 / 2) {
431613dd
GS
433 $timeyear += 1900;
434 } else {
435 $timeyear = sprintf("%02d:%02d", $hour, $min);
436 }
437
438 printf "%5lu %4ld %-10s %3d %-8s %-8s %8s %s %2d %5s %s\n",
439 $ino,
440 $blocks,
441 $perms,
442 $nlink,
443 $user,
444 $group,
445 $size,
446 $moname[$mon],
447 $mday,
448 $timeyear,
449 $pname;
fe14fcc3
LW
450 1;
451}
452
431613dd
GS
453END
454}
455
456
457if (exists $init{cpio} || exists $init{tar}) {
458print <<'END';
459
460my %blocks = ();
461
462sub flush {
463 my ($fh, $varref, $blksz) = @_;
464
465 while (length($$varref) >= $blksz) {
466 no strict qw/refs/;
467 syswrite($fh, $$varref, $blksz);
468 substr($$varref, 0, $blksz) = '';
469 ++$blocks{$fh};
470 }
fe14fcc3
LW
471}
472
473END
474}
475
fe14fcc3 476
431613dd
GS
477if (exists $init{cpio}) {
478 print <<'INTRO', <<"SUB", <<'END';
479
480my %cpout = ();
481my %nc = ();
fe14fcc3 482
431613dd
GS
483sub cpio {
484 my ($fh, $fname, $nc) = @_;
485 my $text = '';
486 my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
487 $atime,$mtime,$ctime,$blksize,$blocks);
488 local (*IN);
489
490 if ( ! defined $fname ) {
491 $fname = 'TRAILER!!!';
492 ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
493 $atime,$mtime,$ctime,$blksize,$blocks) = (0) x 13;
494 } else {
495 ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
496INTRO
497 \$atime,\$mtime,\$ctime,\$blksize,\$blocks) = $stat(_);
498SUB
499 if (-f _) {
500 open(IN, "./$_\0") || do {
501 warn "Couldn't open $fname: $!\n";
502 return;
503 }
504 } else {
505 $text = readlink($_);
506 $size = 0 unless defined $text;
507 }
508 }
509
510 $fname =~ s#^\./##;
fe14fcc3
LW
511 $nc{$fh} = $nc;
512 if ($nc eq 'n') {
431613dd
GS
513 $cpout{$fh} .=
514 sprintf("%06o%06o%06o%06o%06o%06o%06o%06o%011lo%06o%011lo%s\0",
515 070707,
516 $dev & 0777777,
517 $ino & 0777777,
518 $mode & 0777777,
519 $uid & 0777777,
520 $gid & 0777777,
521 $nlink & 0777777,
522 $rdev & 0177777,
523 $mtime,
524 length($fname)+1,
525 $size,
526 $fname);
527 } else {
528 $cpout{$fh} .= "\0" if length($cpout{$fh}) & 1;
529 $cpout{$fh} .= pack("SSSSSSSSLSLa*",
530 070707, $dev, $ino, $mode, $uid, $gid, $nlink, $rdev, $mtime,
531 length($fname)+1, $size,
532 $fname . (length($fname) & 1 ? "\0" : "\0\0"));
fe14fcc3 533 }
fe14fcc3 534
431613dd
GS
535 if ($text ne '') {
536 $cpout{$fh} .= $text;
537 } elsif ($size) {
538 my $l;
539 flush($fh, \$cpout{$fh}, 5120)
540 while ($l = length($cpout{$fh})) >= 5120;
541 while (sysread(IN, $cpout{$fh}, 5120 - $l, $l)) {
542 flush($fh, \$cpout{$fh}, 5120);
543 $l = length($cpout{$fh});
544 }
545 close IN;
fe14fcc3
LW
546 }
547}
548
572330a4 549sub cflushall () {
431613dd 550 for my $fh (keys %cpout) {
572330a4 551 cpio($fh, undef, $nc{$fh});
431613dd
GS
552 $cpout{$fh} .= "0" x (5120 - length($cpout{$fh}));
553 flush($fh, \$cpout{$fh}, 5120);
554 print $blocks{$fh} * 10, " blocks\n";
fe14fcc3
LW
555 }
556}
557
558END
559}
560
431613dd
GS
561if (exists $init{tar}) {
562 print <<'INTRO', <<"SUB", <<'END';
563
564my %tarout = ();
565my %linkseen = ();
566
fe14fcc3 567sub tar {
431613dd
GS
568 my ($fh, $fname) = @_;
569 my $prefix = '';
570 my $typeflag = '0';
571 my $linkname;
572 my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
573INTRO
574 \$atime,\$mtime,\$ctime,\$blksize,\$blocks) = $stat(_);
575SUB
576 local (*IN);
fe14fcc3 577
431613dd
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578 if ($nlink > 1) {
579 if ($linkname = $linkseen{$fh, $dev, $ino}) {
580 if (length($linkname) > 100) {
581 warn "$0: omitting file with linkname ",
582 "too long for tar output: $linkname\n";
583 return;
584 }
585 $typeflag = '1';
586 $size = 0;
587 } else {
588 $linkseen{$fh, $dev, $ino} = $fname;
589 }
590 }
591 if ($typeflag eq '0') {
592 if (-f _) {
593 open(IN, "./$_\0") || do {
594 warn "Couldn't open $fname: $!\n";
595 return;
596 }
597 } else {
598 $linkname = readlink($_);
599 if (defined $linkname) { $typeflag = '2' }
600 elsif (-c _) { $typeflag = '3' }
601 elsif (-b _) { $typeflag = '4' }
602 elsif (-d _) { $typeflag = '5' }
603 elsif (-p _) { $typeflag = '6' }
604 }
605 }
606
607 if (length($fname) > 100) {
608 ($prefix, $fname) = ($fname =~ m#\A(.*?)/(.{,100})\Z(?!\n)#);
609 if (!defined($fname) || length($prefix) > 155) {
610 warn "$0: omitting file with name too long for tar output: ",
611 $fname, "\n";
612 return;
613 }
614 }
615
616 $size = 0 if $typeflag ne '0';
617 my $header = pack("a100a8a8a8a12a12a8a1a100a6a2a32a32a8a8a155",
618 $fname,
619 sprintf("%7o ", $mode & 0777),
620 sprintf("%7o ", $uid & 0777777),
621 sprintf("%7o ", $gid & 0777777),
622 sprintf("%11o ", $size),
623 sprintf("%11o ", $mtime),
624 ' 'x8,
625 $typeflag,
626 defined $linkname ? $linkname : '',
627 "ustar\0",
628 "00",
629 $user{$uid},
630 $group{$gid},
631 ($rdev >> 8) & 0xff,
632 $rdev & 0xff,
633 $prefix,
634 );
635 substr($header, 148, 8) = sprintf("%7o ", unpack("%16C*", $header));
636 my $l = length($header) % 512;
fe14fcc3
LW
637 $tarout{$fh} .= $header;
638 $tarout{$fh} .= "\0" x (512 - $l) if $l;
fe14fcc3 639
431613dd
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640 if ($size) {
641 flush($fh, \$tarout{$fh}, 10240)
642 while ($l = length($tarout{$fh})) >= 10240;
643 while (sysread(IN, $tarout{$fh}, 10240 - $l, $l)) {
644 my $slop = length($tarout{$fh}) % 512;
645 $tarout{$fh} .= "\0" x (512 - $slop) if $slop;
646 flush($fh, \$tarout{$fh}, 10240);
647 $l = length($tarout{$fh});
648 }
649 close IN;
fe14fcc3
LW
650 }
651}
652
572330a4 653sub tflushall () {
431613dd
GS
654 my $len;
655 for my $fh (keys %tarout) {
656 $len = 10240 - length($tarout{$fh});
657 $len += 10240 if $len < 1024;
658 $tarout{$fh} .= "\0" x $len;
659 flush($fh, \$tarout{$fh}, 10240);
fe14fcc3
LW
660 }
661}
662
663END
664}
665
666exit;
667
668############################################################################
669
572330a4 670sub tab () {
431613dd 671 my $tabstring;
fe14fcc3 672
431613dd 673 $tabstring = "\t" x ($indent_depth/2) . ' ' x ($indent_depth%2 * 4);
1c3d792e 674 if (!$statdone) {
431613dd
GS
675 if ($_ =~ /^(?:name|print|prune|exec|ok|\(|\))/) {
676 $init{delayedstat} = 1;
677 } else {
678 my $statcall = '(($dev,$ino,$mode,$nlink,$uid,$gid) = '
679 . $stat . '($_))';
680 if (exists $init{saw_or}) {
681 $tabstring .= "(\$nlink || $statcall) &&\n" . $tabstring;
682 } else {
683 $tabstring .= "$statcall &&\n" . $tabstring;
684 }
685 $statdone = 1;
686 $init{declarestat} = 1;
687 }
fe14fcc3
LW
688 }
689 $tabstring =~ s/^\s+/ / if $out =~ /!$/;
690 $tabstring;
691}
692
572330a4 693sub fileglob_to_re ($) {
431613dd 694 my $x = shift;
50097298 695 $x =~ s#([./^\$()+])#\\$1#g;
431613dd 696 $x =~ s#([?*])#.$1#g;
c7b9dd21 697 "^$x\\z";
fe14fcc3
LW
698}
699
572330a4 700sub n ($$) {
431613dd 701 my ($pre, $n) = @_;
1c3d792e
LW
702 $n =~ s/^-/< / || $n =~ s/^\+/> / || $n =~ s/^/== /;
703 $n =~ s/ 0*(\d)/ $1/;
431613dd 704 "($pre $n)";
fe14fcc3
LW
705}
706
572330a4 707sub quote ($) {
431613dd 708 my $string = shift;
2305df61 709 $string =~ s/\\/\\\\/g;
431613dd 710 $string =~ s/'/\\'/g;
fe14fcc3
LW
711 "'$string'";
712}
431613dd
GS
713
714__END__
715
716=head1 NAME
717
718find2perl - translate find command lines to Perl code
719
720=head1 SYNOPSIS
721
722 find2perl [paths] [predicates] | perl
723
724=head1 DESCRIPTION
725
726find2perl is a little translator to convert find command lines to
727equivalent Perl code. The resulting code is typically faster than
728running find itself.
729
730"paths" are a set of paths where find2perl will start its searches and
731"predicates" are taken from the following list.
732
733=over 4
734
735=item C<! PREDICATE>
736
737Negate the sense of the following predicate. The C<!> must be passed as
738a distinct argument, so it may need to be surrounded by whitespace and/or
739quoted from interpretation by the shell using a backslash (just as with
740using C<find(1)>).
741
742=item C<( PREDICATES )>
743
744Group the given PREDICATES. The parentheses must be passed as distinct
745arguments, so they may need to be surrounded by whitespace and/or
746quoted from interpretation by the shell using a backslash (just as with
747using C<find(1)>).
748
749=item C<PREDICATE1 PREDICATE2>
750
751True if _both_ PREDICATE1 and PREDICATE2 are true; PREDICATE2 is not
752evaluated if PREDICATE1 is false.
753
754=item C<PREDICATE1 -o PREDICATE2>
755
756True if either one of PREDICATE1 or PREDICATE2 is true; PREDICATE2 is
757not evaluated if PREDICATE1 is true.
758
759=item C<-follow>
760
3d1e7443
GS
761Follow (dereference) symlinks. The checking of file attributes depends
762on the position of the C<-follow> option. If it precedes the file
763check option, an C<stat> is done which means the file check applies to the
764file the symbolic link is pointing to. If C<-follow> option follows the
765file check option, this now applies to the symbolic link itself, i.e.
766an C<lstat> is done.
431613dd
GS
767
768=item C<-depth>
769
770Change directory traversal algorithm from breadth-first to depth-first.
771
772=item C<-prune>
773
774Do not descend into the directory currently matched.
775
776=item C<-xdev>
777
778Do not traverse mount points (prunes search at mount-point directories).
779
780=item C<-name GLOB>
781
782File name matches specified GLOB wildcard pattern. GLOB may need to be
783quoted to avoid interpretation by the shell (just as with using
784C<find(1)>).
785
786=item C<-perm PERM>
787
788Low-order 9 bits of permission match octal value PERM.
789
790=item C<-perm -PERM>
791
792The bits specified in PERM are all set in file's permissions.
793
794=item C<-type X>
795
796The file's type matches perl's C<-X> operator.
797
798=item C<-fstype TYPE>
799
800Filesystem of current path is of type TYPE (only NFS/non-NFS distinction
801is implemented).
802
803=item C<-user USER>
804
805True if USER is owner of file.
806
807=item C<-group GROUP>
808
809True if file's group is GROUP.
810
811=item C<-nouser>
812
813True if file's owner is not in password database.
814
815=item C<-nogroup>
816
817True if file's group is not in group database.
818
819=item C<-inum INUM>
820
821True file's inode number is INUM.
822
823=item C<-links N>
824
825True if (hard) link count of file matches N (see below).
826
827=item C<-size N>
828
829True if file's size matches N (see below) N is normally counted in
830512-byte blocks, but a suffix of "c" specifies that size should be
831counted in characters (bytes) and a suffix of "k" specifes that
832size should be counted in 1024-byte blocks.
833
834=item C<-atime N>
835
836True if last-access time of file matches N (measured in days) (see
837below).
838
839=item C<-ctime N>
840
841True if last-changed time of file's inode matches N (measured in days,
842see below).
843
844=item C<-mtime N>
845
846True if last-modified time of file matches N (measured in days, see below).
847
848=item C<-newer FILE>
849
850True if last-modified time of file matches N.
851
852=item C<-print>
853
9c4673c1
SR
854Print out path of file (always true). If none of C<-exec>, C<-ls>,
855C<-print0>, or C<-ok> is specified, then C<-print> will be added
856implicitly.
431613dd
GS
857
858=item C<-print0>
859
860Like -print, but terminates with \0 instead of \n.
861
862=item C<-exec OPTIONS ;>
863
fb8eeed8 864exec() the arguments in OPTIONS in a subprocess; any occurrence of {} in
431613dd
GS
865OPTIONS will first be substituted with the path of the current
866file. Note that the command "rm" has been special-cased to use perl's
867unlink() function instead (as an optimization). The C<;> must be passed as
868a distinct argument, so it may need to be surrounded by whitespace and/or
869quoted from interpretation by the shell using a backslash (just as with
870using C<find(1)>).
871
872=item C<-ok OPTIONS ;>
873
874Like -exec, but first prompts user; if user's response does not begin
875with a y, skip the exec. The C<;> must be passed as
876a distinct argument, so it may need to be surrounded by whitespace and/or
877quoted from interpretation by the shell using a backslash (just as with
878using C<find(1)>).
879
928e06a6 880=item C<-eval EXPR>
431613dd 881
928e06a6 882Has the perl script eval() the EXPR.
431613dd
GS
883
884=item C<-ls>
885
886Simulates C<-exec ls -dils {} ;>
887
888=item C<-tar FILE>
889
890Adds current output to tar-format FILE.
891
892=item C<-cpio FILE>
893
894Adds current output to old-style cpio-format FILE.
895
896=item C<-ncpio FILE>
897
898Adds current output to "new"-style cpio-format FILE.
899
900=back
901
902Predicates which take a numeric argument N can come in three forms:
903
904 * N is prefixed with a +: match values greater than N
905 * N is prefixed with a -: match values less than N
906 * N is not prefixed with either + or -: match only values equal to N
907
431613dd
GS
908=head1 SEE ALSO
909
910find
911
912=cut
fe14fcc3 913!NO!SUBS!
4633a7c4
LW
914
915close OUT or die "Can't close $file: $!";
916chmod 0755, $file or die "Can't reset permissions for $file: $!\n";
917exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':';
8a5546a1 918chdir $origdir;