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- #!/ade/bin/perl
- #
- # Copyright (c) 1994, 1995 Wolfram Schneider. All rights reserved.
- # Alle Rechte vorbehalten. Es gilt das kontinentaleuropäische Urheberrecht.
- #
- # Redistribution and use in source and binary forms, with or without
- # modification, are permitted provided that the following conditions
- # are met:
- # 1. Redistributions of source code must retain the above copyright
- # notice, this list of conditions and the following disclaimer.
- # 2. Redistributions in binary form must reproduce the above copyright
- # notice, this list of conditions and the following disclaimer in the
- # documentation and/or other materials provided with the distribution.
- # 3. All advertising materials mentioning features or use of this software
- # must display the following acknowledgement:
- # This product includes software developed by Wolfram Schneider
- # 4. The name of the author may not be used to endorse or promote products
- # derived from this software without specific prior written permission
- #
- # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- # SUCH DAMAGE.
- #
- #
- # makewhatis -- update the whatis database in the man directories.
- #
- # $Id: makewhatis.perl,v 1.6.4.3 1996/06/23 20:30:05 wosch Exp $
-
-
- sub usage {
-
- warn <<EOF;
- usage: makewhatis [-a|-append ] [-h|-help] [-i|-indent colum]
- [-n|-name name] [-o|-outfile file] [-v|-verbose]
- [directories ...]
- EOF
- exit 1;
- }
-
-
- # Format output
- sub open_output {
- local($dir) = @_;
-
- die "Name for whatis is empty\n" if $whatis_name eq "";
-
- if ($outfile) { # Write all Output to $outfile
- $whatisdb = $outfile;
- } else { # Use man/whatis
- $whatisdb = $dir . "/$whatis_name.tmp";
- }
- $tmp = $whatisdb; # for signals
-
-
- # Array of all entries
- @a = ();
-
-
- # Append mode
- if ($append) {
- local($file) = $whatisdb;
- $file =~ s/\.tmp$// if !$outfile;
-
- if (open(A, "$file")) {
- warn "Open $file for append mode\n" if $verbose;
- while(<A>) {
- push(@a, $_);
- }
- close A;
- }
-
- else {
- warn "$whatisdb: $!\n" if lstat($file) && $verbose; #
- }
- undef $file;
- }
-
-
- warn "Open $whatisdb\n" if $verbose;
- if (!open(A, "> $whatisdb")) {
- die "$whatisdb: $!\n" if $outfile;
-
- warn "$whatisdb: $!\n"; $err++; return 0;
- }
-
- select A;
- return 1;
- }
-
- sub close_output {
- local($success) = @_;
- local($w) = $whatisdb;
- local($counter) = 0;
- local($i, $last,@b);
-
- $w =~ s/\.tmp$//;
- if ($success) { # success
-
- # uniq
- warn "\n" if $verbose && $pointflag;
- warn "sort -u > $whatisdb\n" if $verbose;
- foreach $i (sort @a) {
- if ($i ne $last) {
- push(@b, $i);
- }
- $last =$i;
- }
-
- $counter = $#b + 1;
- print @b; close A; select STDOUT;
-
- if (!$outfile) {
- warn "Rename $whatisdb to $w\n" if $verbose;
- rename($whatisdb, $w) || warn "rename $whatisdb $w\n";
- $counter_all += $counter;
- warn "$counter entries in $w\n" if $verbose;
- } else {
- $counter_all = $counter;
- }
- } else { # building whatisdb failed
- unlink($whatisdb);
- warn "building whatisdb: $whatisdb failed\n" if $verbose;
- }
- return 1;
- }
-
- sub parse_subdir {
- local($dir) = @_;
- local($file, $dev,$ino);
-
- warn "\n" if $pointflag;
- warn "traverse $dir\n" if $verbose;
- $pointflag = 0;
-
- if (!opendir(M, $dir)) {
- warn "$dir: $!\n"; $err++; return 0;
- }
-
- $| = 1 if $verbose;
- foreach $file (readdir(M)) {
- next if $file =~ /^(\.|\.\.)$/;
-
- ($dev, $ino) = ((stat("$dir/$file"))[01]);
- if (-f _) {
- if ($man_red{"$dev.$ino"}) {
- # Link
- print STDERR "+" if $verbose;
- $pointflag++ if $verbose;
- } else {
- &manual("$dir/$file");
- }
- $man_red{"$dev.$ino"} = 1;
- } elsif (! -d _) {
- warn "Cannot find file: $dir/$file\n"; $err++;
- }
- }
- closedir M;
- return 1;
- }
-
- # read man directory
- sub parse_dir {
- local($dir) = @_;
- local($subdir, $file);
-
- # clean up, in case mandir and subdirs are called simultaneously
- # e. g.: ~/man/man1 ~/man/man2 ~/man
- #~/man/ man1 and ~/man/man2 are a subset of ~/man
- foreach $file (keys %man_red) {
- delete $man_red{$file};
- }
-
- if ($dir =~ /man$/) {
- warn "\n" if $verbose && $pointflag;
- warn "open manpath directory ``$dir''\n" if $verbose;
- $pointflag = 0;
- if (!opendir(DIR, $dir)) {
- warn "opendir ``$dir'':$!\n"; $err = 1; return 0;
- }
- foreach $subdir (sort(readdir(DIR))) {
- if ($subdir =~ /^man\w+$/) {
- $subdir = "$dir/$subdir";
- &parse_subdir($subdir);
- }
- }
- closedir DIR
-
- } elsif ($dir =~ /man\w+$/) {
- &parse_subdir($dir);
- } else {
- warn "Assume ``$dir'' is not a man directory.\n";
- $err = 1; return 0;
- }
- return 1;
- }
-
- sub dir_redundant {
- local($dir) = @_;
-
- local ($dev,$ino) = (stat($dir))[0..1];
-
- if ($dir_redundant{"$dev.$ino"}) {
- warn "$dir is equal to: $dir_redundant{\"$dev.$ino\"}\n" if $verbose;
- return 0;
- }
- $dir_redundant{"$dev.$ino"} = $dir;
- return 1;
- }
-
-
- # ``/usr/man/man1/foo.l'' -> ``l''
- sub ext {
- local($filename) = @_;
- local($extension) = $filename;
-
- $extension =~ s/$ext$//g; # strip .gz
- $extension =~ s/.*\///g; # basename
-
- if ($extension !~ /\./) { # no dot
- $extension = $filename;
- #$extension =~ s|/[^/]+$||;
- $extension =~ s/.*(.)/$1/; # last character
- warn "\n" if $verbose && $pointflag;
- warn "$filename has no extension, try section ``$extension''\n"
- if $verbose;
- $pointflag = 0;
- } else {
- $extension =~ s/.*\.//g; # foo.bla.1 -> 1
- }
- return "$extension";
- }
-
- # ``/usr/man/man1/foo.1'' -> ``foo''
- sub name {
- local($name) = @_;
-
- $name =~ s=.*/==;
- $name =~ s=$ext$==o;
- $name =~ s=\.[^\.]+$==;
-
- return "$name";
- }
-
- # output
- sub out {
- local($list) = @_;
- local($delim) = " - ";
- $_ = $list;
-
- # delete italic etc.
- s/^\.[^ -]+[ -]+//;
- s/\\\((em|mi)//;
- s/\\f[IRBP]//g;
- s/\\\*p//g;
- s/\(OBSOLETED\)[ ]?//;
- s/\\&//g;
- s/^\@INDOT\@//;
- s/[\"\\]//g; #"
- s/[. \t-]+$//;
-
- s/ / - / unless / - /;
- ($man,$desc) = split(/ - /);
-
- $man = $name unless $man;
- $man =~ s/[,. ]+$//;
- $man =~ s/,/($extension),/g;
- $man .= "($extension)";
-
- &manpagename;
-
- $desc =~ s/^[ \t]+//;
-
- for($i = length($man); $i < $indent && $desc; $i++) {
- $man .= ' ';
- }
- if ($desc) {
- push(@a, "$man$delim$desc\n");
- } else {
- push(@a, "$man\n");
- }
- }
-
- # The filename of manual page is not a keyword.
- # This is bad, because you don't find the manpage
- # whith: $ man <section> <keyword>
- #
- # Add filename if a) filename is not a keyword and b) no keyword(s)
- # exist as file in same mansection
- #
- sub manpagename {
- foreach (split(/,\s+/, $man)) {
- s/\(.+//;
- # filename is keyword
- return if $name eq $_;
- }
-
- local($f) = $file; $f =~ s%/*[^/]+$%%; # dirname
- local($e) = $file; $e =~ s/$ext$//; $e =~ s%.*(\.[^.]+)$%$1%; # .1
-
- foreach (split(/,\s+/, $man)) {
- s/\(.+//;
-
- # a keyword exist as file
- return if -e "$f/$_$e" || -e "$f/$_$e$ext";
- }
-
- $man = "$name($extension), $man";
- }
-
- # looking for NAME
- sub manual {
- local($file) = @_;
- local($list, $desc, $extension);
- local($ofile) = $file;
-
- # Compressed man pages
- if ($ofile =~ /$ext$/) {
- $ofile = "gzcat $file |";
- print STDERR "*" if $verbose;
- } else {
- print STDERR "." if $verbose;
- }
- $pointflag++ if $verbose;
-
- if (!open(F, "$ofile")) {
- warn "Cannot open file: $ofile\n"; $err++;
- return 0;
- }
- # extension/section
- $extension = &ext($file);
- $name = &name($file);
-
- local($source) = 0;
- local($list);
- while(<F>) {
- # ``man'' style pages
- # &&: it takes you only half the user time, regexp is slow!!!
- if (/^\.SH/ && /^\.SH[ \t]+["]?(NAME|Name|NAMN)["]?/) {
- #while(<F>) { last unless /^\./ } # Skip
- #chop; $list = $_;
- while(<F>) {
- last if /^\.SH[ \t]/;
- chop;
- s/^\.[A-Z]+[ ]+[0-9]+$//; # delete commands
- s/^\.[A-Za-z]+[ \t]*//; # delete commands
- s/^\.\\".*$//; #" delete comments
- s/^[ \t]+//;
- if ($_) {
- $list .= $_;
- $list .= ' ';
- }
- }
- &out($list); close F; return 1;
- } elsif (/^\.Sh/ && /^\.Sh[ \t]+["]?(NAME|Name)["]?/) {
- # ``doc'' style pages
- local($flag) = 0;
- while(<F>) {
- last if /^\.Sh/;
- chop;
- s/^\.\\".*$//; #" delete comments
- if (/^\.Nm/) {
- s/^\.Nm[ \t]*//;
- s/ ,/,/g;
- s/[ \t]+$//;
- $list .= $_;
- $list .= ' ';
- } else {
- $list .= '- ' if (!$flag && !/-/);
- $flag++;
- s/^\.[A-Z][a-z][ \t]*//;
- s/[ \t]+$//;
- $list .= $_;
- $list .= ' ';
- }
- }
- &out($list); close F; return 1;
-
- } elsif(/^\.so/ && /^\.so[ \t]+man/) {
- close F; return 1;
- }
- }
- if (!$source && $verbose) {
- warn "\n" if $pointflag;
- warn "Maybe $file is not a manpage\n" ;
- $pointflag = 0;
- }
- return 0;
- }
-
- # make relative path to absolute path
- sub absolute_path {
- local(@dirlist) = @_;
- local($pwd, $dir, @a);
-
- $pwd = $ENV{'PWD'};
- foreach $dir (@dirlist) {
- if ($dir !~ "^/") {
- chop($pwd = `pwd`) if (!$pwd || $pwd !~ /^\//);
- push(@a, "$pwd/$dir");
- } else {
- push(@a, $dir);
- }
- }
- return @a;
- }
-
- # strip unused '/'
- # e.g.: //usr///home// -> /usr/home
- sub stripdir {
- local($dir) = @_;
-
- $dir =~ s|/+|/|g; # delete double '/'
- $dir =~ s|/$||; # delete '/' at end
- $dir =~ s|/(\.\/)+|/|g; # delete ././././
-
- $dir =~ s|/+|/|g; # delete double '/'
- $dir =~ s|/$||; # delete '/' at end
- $dir =~ s|/\.$||; # delete /. at end
- return $dir if $dir ne "";
- return '/';
- }
-
- sub variables {
- $verbose = 0; # Verbose
- $indent = 24; # indent for description
- $outfile = 0; # Don't write to ./whatis
- $whatis_name = "whatis"; # Default name for DB
- $append = 0; # Don't delete old entries
-
- # if no argument for directories given
- @defaultmanpath = ( '/usr/share/man' );
-
- $ext = '.gz'; # extension
- umask(022);
-
- $err = 0; # exit code
- $whatisdb = '';
- $counter_all = 0;
- $dir_redundant = ''; # redundant directories
- $man_red = ''; # redundant man pages
- @a = (); # Array for output
-
- # Signals
- $SIG{'INT'} = 'Exit';
- $SIG{'HUP'} = 'Exit';
- $SIG{'TRAP'} = 'Exit';
- $SIG{'QUIT'} = 'Exit';
- $SIG{'TERM'} = 'Exit';
- $tmp = ''; # tmp file
-
- $ENV{'PATH'} = "/bin:/usr/bin:$ENV{'PATH'}";
- }
-
- sub Exit {
- unlink($tmp) if $tmp ne ""; # unlink if a filename
- die "$0: die on signal SIG@_\n";
- }
-
- sub parse {
- local(@argv) = @_;
- local($i);
-
- while ($_ = $argv[0], /^-/) {
- shift @argv;
- last if /^--$/;
- if (/^--?(v|verbose)$/) { $verbose = 1 }
- elsif (/^--?(h|help|\?)$/) { &usage }
- elsif (/^--?(o|outfile)$/) { $outfile = $argv[0]; shift @argv }
- elsif (/^--?(f|format|i|indent)$/) { $i = $argv[0]; shift @argv }
- elsif (/^--?(n|name)$/) { $whatis_name = $argv[0];shift @argv }
- elsif (/^--?(a|append)$/) { $append = 1 }
- else { &usage }
- }
-
- if ($i ne "") {
- if ($i =~ /^[0-9]+$/) {
- $indent = $i;
- } else {
- warn "Ignoring wrong indent value: ``$i''\n";
- }
- }
-
- return &absolute_path(@argv) if $#argv >= 0;
- return @defaultmanpath if $#defaultmanpath >= 0;
-
- warn "Missing directories\n"; &usage;
- }
-
-
- ##
- ## Main
- ##
-
- &variables;
- # allow colons in dir: ``makewhatis dir1:dir2:dir3''
- @argv = &parse(split(/[: ]/, join($", @ARGV))); # "
-
-
- if ($outfile) {
- if(&open_output($outfile)){
- foreach $dir (@argv) {
- $dir = &stripdir($dir);
- &dir_redundant($dir) && &parse_dir($dir);
- }
- }
- &close_output(1);
- } else {
- foreach $dir (@argv) {
- $dir = &stripdir($dir);
- &dir_redundant($dir) &&
- &close_output(&open_output($dir) && &parse_dir($dir));
- }
- }
-
- warn "Total entries: $counter_all\n" if $verbose && ($#argv > 0 || $outfile);
- exit $err;
-