diff options
author | Larry Wall <lwall@scalpel.netlabs.com> | 1995-11-21 10:01:00 +1200 |
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committer | Larry <lwall@scalpel.netlabs.com> | 1995-11-21 10:01:00 +1200 |
commit | 4633a7c4bad06b471d9310620b7fe8ddd158cccd (patch) | |
tree | 37ebeb26a64f123784fd8fac6243b124767243b0 /x2p/find2perl.PL | |
parent | 8e07c86ebc651fe92eb7e3b25f801f57cfb8dd6f (diff) | |
download | perl-4633a7c4bad06b471d9310620b7fe8ddd158cccd.tar.gz |
5.002 beta 1
If you're adventurous, have a look at
ftp://ftp.sems.com/pub/outgoing/perl5.0/perl5.002beta1.tar.gz
Many thanks to Andy for doing the integration.
Obviously, if you consult the bugs database, you'll note there are
still plenty of buglets that need fixing, and several enhancements that
I've intended to put in still haven't made it in (Hi, Tim and Ilya).
But I think it'll be pretty stable. And you can start to fiddle around
with prototypes (which are, of course, still totally undocumented).
Packrats, don't worry too much about readvertising this widely.
Nowadays we're on a T1 here, so our bandwidth is okay.
Have the appropriate amount of jollity.
Larry
Diffstat (limited to 'x2p/find2perl.PL')
-rw-r--r-- | x2p/find2perl.PL | 607 |
1 files changed, 607 insertions, 0 deletions
diff --git a/x2p/find2perl.PL b/x2p/find2perl.PL new file mode 100644 index 0000000000..785ffa63ca --- /dev/null +++ b/x2p/find2perl.PL @@ -0,0 +1,607 @@ +#!/usr/local/bin/perl + +use Config; +use File::Basename qw(&basename &dirname); + +# List explicitly here the variables you want Configure to +# generate. Metaconfig only looks for shell variables, so you +# have to mention them as if they were shell variables, not +# %Config entries. Thus you write +# $startperl +# to ensure Configure will look for $Config{startperl}. + +# This forces PL files to create target in same directory as PL file. +# This is so that make depend always knows where to find PL derivatives. +chdir(dirname($0)); +($file = basename($0)) =~ s/\.PL$//; +$file =~ s/\.pl$// + if ($Config{'osname'} eq 'VMS' or + $Config{'osname'} eq 'OS2'); # "case-forgiving" + +open OUT,">$file" or die "Can't create $file: $!"; + +print "Extracting $file (with variable substitutions)\n"; + +# In this section, perl variables will be expanded during extraction. +# You can use $Config{...} to use Configure variables. + +print OUT <<"!GROK!THIS!"; +$Config{'startperl'} + eval 'exec perl -S \$0 "\$@"' + if 0; +\$startperl = $Config{startperl}; +!GROK!THIS! + +# In the following, perl variables are not expanded during extraction. + +print OUT <<'!NO!SUBS!'; +# +# Modified September 26, 1993 to provide proper handling of years after 1999 +# Tom Link <tml+@pitt.edu> +# University of Pittsburgh + +while ($ARGV[0] =~ /^[^-!(]/) { + push(@roots, shift); +} +@roots = ('.') unless @roots; +for (@roots) { $_ = "e($_); } +$roots = join(',', @roots); + +$indent = 1; + +while (@ARGV) { + $_ = shift; + s/^-// || /^[()!]/ || die "Unrecognized switch: $_\n"; + if ($_ eq '(') { + $out .= &tab . "(\n"; + $indent++; + next; + } + elsif ($_ eq ')') { + $indent--; + $out .= &tab . ")"; + } + elsif ($_ eq '!') { + $out .= &tab . "!"; + next; + } + elsif ($_ eq 'name') { + $out .= &tab; + $pat = &fileglob_to_re(shift); + $out .= '/' . $pat . "/"; + } + elsif ($_ eq 'perm') { + $onum = shift; + die "Malformed -perm argument: $onum\n" unless $onum =~ /^-?[0-7]+$/; + if ($onum =~ s/^-//) { + $onum = '0' . sprintf("%o", oct($onum) & 017777); # s/b 07777 ? + $out .= &tab . "((\$mode & $onum) == $onum)"; + } + else { + $onum = '0' . $onum unless $onum =~ /^0/; + $out .= &tab . "((\$mode & 0777) == $onum)"; + } + } + elsif ($_ eq 'type') { + ($filetest = shift) =~ tr/s/S/; + $out .= &tab . "-$filetest _"; + } + elsif ($_ eq 'print') { + $out .= &tab . 'print("$name\n")'; + } + elsif ($_ eq 'print0') { + $out .= &tab . 'print("$name\0")'; + } + elsif ($_ eq 'fstype') { + $out .= &tab; + $type = shift; + if ($type eq 'nfs') + { $out .= '($dev < 0)'; } + else + { $out .= '($dev >= 0)'; } + } + elsif ($_ eq 'user') { + $uname = shift; + $out .= &tab . "(\$uid == \$uid{'$uname'})"; + $inituser++; + } + elsif ($_ eq 'group') { + $gname = shift; + $out .= &tab . "(\$gid == \$gid{'$gname'})"; + $initgroup++; + } + elsif ($_ eq 'nouser') { + $out .= &tab . '!defined $uid{$uid}'; + $inituser++; + } + elsif ($_ eq 'nogroup') { + $out .= &tab . '!defined $gid{$gid}'; + $initgroup++; + } + elsif ($_ eq 'links') { + $out .= &tab . '($nlink ' . &n(shift); + } + elsif ($_ eq 'inum') { + $out .= &tab . '($ino ' . &n(shift); + } + elsif ($_ eq 'size') { + $out .= &tab . '(int(((-s _) + 511) / 512) ' . &n(shift); + } + elsif ($_ eq 'atime') { + $out .= &tab . '(int(-A _) ' . &n(shift); + } + elsif ($_ eq 'mtime') { + $out .= &tab . '(int(-M _) ' . &n(shift); + } + elsif ($_ eq 'ctime') { + $out .= &tab . '(int(-C _) ' . &n(shift); + } + elsif ($_ eq 'exec') { + for (@cmd = (); @ARGV && $ARGV[0] ne ';'; push(@cmd,shift)) { } + shift; + $_ = "@cmd"; + if (m#^(/bin/)?rm -f {}$#) { + if (!@ARGV) { + $out .= &tab . 'unlink($_)'; + } + else { + $out .= &tab . '(unlink($_) || 1)'; + } + } + elsif (m#^(/bin/)?rm {}$#) { + $out .= &tab . '(unlink($_) || warn "$name: $!\n")'; + } + else { + for (@cmd) { s/'/\\'/g; } + $" = "','"; + $out .= &tab . "&exec(0, '@cmd')"; + $" = ' '; + $initexec++; + } + } + elsif ($_ eq 'ok') { + for (@cmd = (); @ARGV && $ARGV[0] ne ';'; push(@cmd,shift)) { } + shift; + for (@cmd) { s/'/\\'/g; } + $" = "','"; + $out .= &tab . "&exec(1, '@cmd')"; + $" = ' '; + $initexec++; + } + elsif ($_ eq 'prune') { + $out .= &tab . '($prune = 1)'; + } + elsif ($_ eq 'xdev') { + $out .= &tab . '!($prune |= ($dev != $topdev))'; + } + elsif ($_ eq 'newer') { + $out .= &tab; + $file = shift; + $newername = 'AGE_OF' . $file; + $newername =~ s/[^\w]/_/g; + $newername = '$' . $newername; + $out .= "(-M _ < $newername)"; + $initnewer .= "$newername = -M " . "e($file) . ";\n"; + } + elsif ($_ eq 'eval') { + $prog = "e(shift); + $out .= &tab . "eval $prog"; + } + elsif ($_ eq 'depth') { + $depth++; + next; + } + elsif ($_ eq 'ls') { + $out .= &tab . "&ls"; + $initls++; + } + elsif ($_ eq 'tar') { + $out .= &tab; + die "-tar must have a filename argument\n" unless @ARGV; + $file = shift; + $fh = 'FH' . $file; + $fh =~ s/[^\w]/_/g; + $out .= "&tar($fh)"; + $file = '>' . $file; + $initfile .= "open($fh, " . "e($file) . + qq{) || die "Can't open $fh: \$!\\n";\n}; + $inittar++; + $flushall = "\n&tflushall;\n"; + } + elsif (/^n?cpio$/) { + $depth++; + $out .= &tab; + die "-$_ must have a filename argument\n" unless @ARGV; + $file = shift; + $fh = 'FH' . $file; + $fh =~ s/[^\w]/_/g; + $out .= "&cpio('" . substr($_,0,1) . "', $fh)"; + $file = '>' . $file; + $initfile .= "open($fh, " . "e($file) . + qq{) || die "Can't open $fh: \$!\\n";\n}; + $initcpio++; + $flushall = "\n&flushall;\n"; + } + else { + die "Unrecognized switch: -$_\n"; + } + if (@ARGV) { + if ($ARGV[0] eq '-o') { + { local($statdone) = 1; $out .= "\n" . &tab . "||\n"; } + $statdone = 0 if $indent == 1 && $delayedstat; + $saw_or++; + shift; + } + else { + $out .= " &&" unless $ARGV[0] eq ')'; + $out .= "\n"; + shift if $ARGV[0] eq '-a'; + } + } +} + +print <<"END"; +$startperl + +eval 'exec perl -S \$0 \${1+"\$@"}' + if \$running_under_some_shell; + +END + +if ($initls) { + print <<'END'; +@rwx = ('---','--x','-w-','-wx','r--','r-x','rw-','rwx'); +@moname = (Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep,Oct,Nov,Dec); + +END +} + +if ($inituser || $initls) { + print 'while (($name, $pw, $uid) = getpwent) {', "\n"; + print ' $uid{$name} = $uid{$uid} = $uid;', "\n" if $inituser; + print ' $user{$uid} = $name unless $user{$uid};', "\n" if $initls; + print "}\n\n"; +} + +if ($initgroup || $initls) { + print 'while (($name, $pw, $gid) = getgrent) {', "\n"; + print ' $gid{$name} = $gid{$gid} = $gid;', "\n" if $initgroup; + print ' $group{$gid} = $name unless $group{$gid};', "\n" if $initls; + print "}\n\n"; +} + +print $initnewer, "\n" if $initnewer; + +print $initfile, "\n" if $initfile; + +$find = $depth ? "finddepth" : "find"; +print <<"END"; +require "$find.pl"; + +# Traverse desired filesystems + +&$find($roots); +$flushall +exit; + +sub wanted { +$out; +} + +END + +if ($initexec) { + print <<'END'; +sub exec { + local($ok, @cmd) = @_; + foreach $word (@cmd) { + $word =~ s#{}#$name#g; + } + if ($ok) { + local($old) = select(STDOUT); + $| = 1; + print "@cmd"; + select($old); + return 0 unless <STDIN> =~ /^y/; + } + chdir $cwd; # sigh + system @cmd; + chdir $dir; + return !$?; +} + +END +} + +if ($initls) { + print <<'END'; +sub ls { + ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$sizemm, + $atime,$mtime,$ctime,$blksize,$blocks) = lstat(_); + + $pname = $name; + + if (defined $blocks) { + $blocks = int(($blocks + 1) / 2); + } + else { + $blocks = int(($size + 1023) / 1024); + } + + if (-f _) { $perms = '-'; } + elsif (-d _) { $perms = 'd'; } + elsif (-c _) { $perms = 'c'; $sizemm = &sizemm; } + elsif (-b _) { $perms = 'b'; $sizemm = &sizemm; } + elsif (-p _) { $perms = 'p'; } + elsif (-S _) { $perms = 's'; } + else { $perms = 'l'; $pname .= ' -> ' . readlink($_); } + + $tmpmode = $mode; + $tmp = $rwx[$tmpmode & 7]; + $tmpmode >>= 3; + $tmp = $rwx[$tmpmode & 7] . $tmp; + $tmpmode >>= 3; + $tmp = $rwx[$tmpmode & 7] . $tmp; + substr($tmp,2,1) =~ tr/-x/Ss/ if -u _; + substr($tmp,5,1) =~ tr/-x/Ss/ if -g _; + substr($tmp,8,1) =~ tr/-x/Tt/ if -k _; + $perms .= $tmp; + + $user = $user{$uid} || $uid; + $group = $group{$gid} || $gid; + + ($sec,$min,$hour,$mday,$mon,$year) = localtime($mtime); + $moname = $moname[$mon]; + if (-M _ > 365.25 / 2) { + $timeyear = $year + 1900; + } + else { + $timeyear = sprintf("%02d:%02d", $hour, $min); + } + + printf "%5lu %4ld %-10s %2d %-8s %-8s %8s %s %2d %5s %s\n", + $ino, + $blocks, + $perms, + $nlink, + $user, + $group, + $sizemm, + $moname, + $mday, + $timeyear, + $pname; + 1; +} + +sub sizemm { + sprintf("%3d, %3d", ($rdev >> 8) & 255, $rdev & 255); +} + +END +} + +if ($initcpio) { +print <<'END'; +sub cpio { + local($nc,$fh) = @_; + local($text); + + if ($name eq 'TRAILER!!!') { + $text = ''; + $size = 0; + } + else { + ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size, + $atime,$mtime,$ctime,$blksize,$blocks) = lstat(_); + if (-f _) { + open(IN, "./$_\0") || do { + warn "Couldn't open $name: $!\n"; + return; + }; + } + else { + $text = readlink($_); + $size = 0 unless defined $text; + } + } + + ($nm = $name) =~ s#^\./##; + $nc{$fh} = $nc; + if ($nc eq 'n') { + $cpout{$fh} .= + sprintf("%06o%06o%06o%06o%06o%06o%06o%06o%011lo%06o%011lo%s\0", + 070707, + $dev & 0777777, + $ino & 0777777, + $mode & 0777777, + $uid & 0777777, + $gid & 0777777, + $nlink & 0777777, + $rdev & 0177777, + $mtime, + length($nm)+1, + $size, + $nm); + } + else { + $cpout{$fh} .= "\0" if length($cpout{$fh}) & 1; + $cpout{$fh} .= pack("SSSSSSSSLSLa*", + 070707, $dev, $ino, $mode, $uid, $gid, $nlink, $rdev, $mtime, + length($nm)+1, $size, $nm . (length($nm) & 1 ? "\0" : "\0\0")); + } + if ($text ne '') { + $cpout{$fh} .= $text; + } + elsif ($size) { + &flush($fh) while ($l = length($cpout{$fh})) >= 5120; + while (sysread(IN, $cpout{$fh}, 5120 - $l, $l)) { + &flush($fh); + $l = length($cpout{$fh}); + } + } + close IN; +} + +sub flush { + local($fh) = @_; + + while (length($cpout{$fh}) >= 5120) { + syswrite($fh,$cpout{$fh},5120); + ++$blocks{$fh}; + substr($cpout{$fh}, 0, 5120) = ''; + } +} + +sub flushall { + $name = 'TRAILER!!!'; + foreach $fh (keys %cpout) { + &cpio($nc{$fh},$fh); + $cpout{$fh} .= "0" x (5120 - length($cpout{$fh})); + &flush($fh); + print $blocks{$fh} * 10, " blocks\n"; + } +} + +END +} + +if ($inittar) { +print <<'END'; +sub tar { + local($fh) = @_; + local($linkname,$header,$l,$slop); + local($linkflag) = "\0"; + + ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size, + $atime,$mtime,$ctime,$blksize,$blocks) = lstat(_); + $nm = $name; + if ($nlink > 1) { + if ($linkname = $linkseen{$fh,$dev,$ino}) { + $linkflag = 1; + } + else { + $linkseen{$fh,$dev,$ino} = $nm; + } + } + if (-f _) { + open(IN, "./$_\0") || do { + warn "Couldn't open $name: $!\n"; + return; + }; + $size = 0 if $linkflag ne "\0"; + } + else { + $linkname = readlink($_); + $linkflag = 2 if defined $linkname; + $nm .= '/' if -d _; + $size = 0; + } + + $header = pack("a100a8a8a8a12a12a8a1a100", + $nm, + sprintf("%6o ", $mode & 0777), + sprintf("%6o ", $uid & 0777777), + sprintf("%6o ", $gid & 0777777), + sprintf("%11o ", $size), + sprintf("%11o ", $mtime), + " ", + $linkflag, + $linkname); + $l = length($header) % 512; + substr($header, 148, 6) = sprintf("%6o", unpack("%16C*", $header)); + substr($header, 154, 1) = "\0"; # blech + $tarout{$fh} .= $header; + $tarout{$fh} .= "\0" x (512 - $l) if $l; + if ($size) { + &tflush($fh) while ($l = length($tarout{$fh})) >= 10240; + while (sysread(IN, $tarout{$fh}, 10240 - $l, $l)) { + $slop = length($tarout{$fh}) % 512; + $tarout{$fh} .= "\0" x (512 - $slop) if $slop; + &tflush($fh); + $l = length($tarout{$fh}); + } + } + close IN; +} + +sub tflush { + local($fh) = @_; + + while (length($tarout{$fh}) >= 10240) { + syswrite($fh,$tarout{$fh},10240); + ++$blocks{$fh}; + substr($tarout{$fh}, 0, 10240) = ''; + } +} + +sub tflushall { + local($len); + + foreach $fh (keys %tarout) { + $len = 10240 - length($tarout{$fh}); + $len += 10240 if $len < 1024; + $tarout{$fh} .= "\0" x $len; + &tflush($fh); + } +} + +END +} + +exit; + +############################################################################ + +sub tab { + local($tabstring); + + $tabstring = "\t" x ($indent / 2) . ' ' x ($indent % 2 * 4); + if (!$statdone) { + if ($_ =~ /^(name|print|prune|exec|ok|\(|\))/) { + $delayedstat++; + } + else { + if ($saw_or) { + $tabstring .= <<'ENDOFSTAT' . $tabstring; +($nlink || (($dev,$ino,$mode,$nlink,$uid,$gid) = lstat($_))) && +ENDOFSTAT + } + else { + $tabstring .= <<'ENDOFSTAT' . $tabstring; +(($dev,$ino,$mode,$nlink,$uid,$gid) = lstat($_)) && +ENDOFSTAT + } + $statdone = 1; + } + } + $tabstring =~ s/^\s+/ / if $out =~ /!$/; + $tabstring; +} + +sub fileglob_to_re { + local($tmp) = @_; + + $tmp =~ s#([./^\$()])#\\$1#g; + $tmp =~ s/([?*])/.$1/g; + "^$tmp\$"; +} + +sub n { + local($n) = @_; + + $n =~ s/^-/< / || $n =~ s/^\+/> / || $n =~ s/^/== /; + $n =~ s/ 0*(\d)/ $1/; + $n . ')'; +} + +sub quote { + local($string) = @_; + $string =~ s/'/\\'/; + "'$string'"; +} +!NO!SUBS! + +close OUT or die "Can't close $file: $!"; +chmod 0755, $file or die "Can't reset permissions for $file: $!\n"; +exec("$Config{'eunicefix'} $file") if $Config{'eunicefix'} ne ':'; |