#!/usr/bin/perl
#
# THE FERRET: This script generates an index.html for the directory it is
# run in. It requires the following three files (well, it requires
# two of them but would be REALLY GRATEFUL if you provided the
# third):
#
# .header The HTML header to the index.html file we're making.
# .footer The HTML footer to the index.html file we're making.
# .descs A list of files and descriptions.
#
# Now this last one, .descs, is the one it doesn't need, since
# the script will blithely go ahead and create a new one based on
# the current state of the directory.
#
# It does the following things:
#
# - Reads in the .descs file, if any.
# - Makes sure every file in the .descs file exists.
# - Finds out if the items are directories instead of files.
# - Checks to see if there are any unlisted files.
# - Generates a new .descs from the gathered info.
# - Generates a new index.html from the gathered info.
# The COMMA() Subroutine, when given a number, puts the commas in the
# right places. I came up with this in my PERL Class, and I've very fond
# of it.
sub comma {
$_[0]=reverse $_[0];
$_[0]=~s/(...)/$1,/g;
$_[0]=~s/,$//;
$_[0]=reverse $_[0];
}
$are = "are";
$filez = "files";
# Read in .descs into an array.
print "[] Opening the .descs file and reading in descriptions...\n";
if (-f ".descs") {
open (DESCS,".descs");
while($line=<DESCS>)
{
chomp $line;
@slag=split(/ /,$line,2);
$trashheap{$slag[0]}= [$slag[1]];
}
close(DESCS);
print "[] Checking for Directories and Missing Files...\n";
foreach $micro(sort(keys(%trashheap)))
{
chomp $micro;
if (-d $micro)
{
}
elsif (!-f $micro)
{
$smite=delete $trashheap{"$micro"};
print " Deleting $micro...\n";
}
}
# Now, go through a list of all the files in this directory
# and see if there are any files not listed in the .descs file.
print "[] Checking for unlisted (added) files...\n";
# Here's the old version, which blocked out the .tar.gz files.
# We've since switched things around so this isn't a problem.
# open (FILES,"/bin/ls | grep -v tar.gz | ");
open (FILES,"/bin/ls | grep -v .descs | grep -v .musings | grep -v .windex.html | ");
while (<FILES>)
{
chomp $_;
if (not exists $trashheap{$_})
{
if ( not /^\./)
{
print " $_ is not listed in .descs. Adding. \n";
@slag=split(/ /,$_,2);
$trashheap{$slag[0]}= [$slag[1]];
}
}
}
# Let's quickly throw out the index.html file entry. No need for it to
# be in the listing.
if (-f "index.html" )
{
$smite=delete $trashheap{"index.html"};
}
# Now, Generate your new index.html.
print "[] Now generating the new INDEX.HTML page...\n";
open ( INDEX, "> index.html");
if (-f ".header")
{
open(FROM,".header");
while (<FROM>)
{
print INDEX "$_";
}
}
elsif (not -f ".header")
{
print "[] There is no .header file. The index.html might be unreadable.\n";
}
# Add a line for making the table lynx-friendly.
print INDEX "<tab indent=60 id=T><br>\n";
# Go through it once so that Directories appear on the top.
print "[] First indexing directories, if any....\n";
$holder = "0";
foreach $smitten(sort(keys(%trashheap)))
{
chomp $smitten;
if (-d $smitten)
{ $holder++;
print " $smitten is a Directory.\n";
print INDEX "<TR VALIGN=TOP><TD VALIGN=TOP><B><A HREF=\"",$smitten,"\">",$smitten,"</A></B><TAB TO=T><TD WIDTH=20></TD><TD><B>",@{$trashheap{$smitten}},"</B></TD></TR>\n";
}
}
if ($holder)
{ print INDEX "<TR><TD> </TD></TR>\n";}
print "[] Now indexing files, if any...\n";
# Show the files that are available.
foreach $smitten(sort(keys(%trashheap)))
{
# If this is a directory, take it out of the race, but add up the directories.
if (-d $smitten)
{
$ndirs++;
}
else {
# Get the size of the file.
@stats=stat("$smitten");
# Is there a thumbnail?
$thumb="";
if ( -f ".png/$smitten.png") {
$thumb="[<A HREF=\".png/$smitten.png\">?</A>] \n";
}
print INDEX "<TR VALIGN=TOP><TD ALIGN=TOP><A HREF=\"",$smitten,"\">",$smitten,"</A> $thumb <tab to=T><TD> ",$stats[7],"<BR><TD> ",@{$trashheap{$smitten}},"\n";
# Add the amount of bytes in this listed file to the total bytes.
# Add one to the total number of files listed.
$total+=$stats[7];
$nfiles++;
}
}
print INDEX "</TABLE>";
$total=comma($total);
$nfiles=comma($nfiles);
print INDEX "<P><TABLE WIDTH=100%>";
if ($nfiles != "" )
{
if ($nfiles eq "1")
{
$are="is";
$filez="file";
}
print INDEX "<TR><TD ALIGN=RIGHT><SMALL>There ",$are," ",$nfiles," ",$filez," for a total of ",$total," bytes.</SMALL>";
}
if ($ndirs != "" )
{
$are="are";
$filez="directories";
if ($ndirs eq "1")
{
$are="is";
$filez="directory";
}
print INDEX "<TR><TD ALIGN=RIGHT><SMALL>There ",$are," ",$ndirs," ",$filez,".</SMALL>";
}
print INDEX "</TABLE>";
if (-f ".footer")
{
open(FROM,".footer");
while (<FROM>)
{
print INDEX "$_";
}
}
#
elsif (not -f ".footer")
{
print "[] There is no .footer file. The index.html might be unreadable.\n";
}
# Finally, throw out a new .descs file.
print "[] Creating a new .descs file...\n";
open(DESCS,">.descs");
# Put the files that are available.
foreach $smitten(sort(keys(%trashheap)))
{
print DESCS $smitten," ",@{$trashheap{$smitten}},"\n";
}
close (DESCS);
}
else { print "There's no .descs file. Please touch one to encourage the ferret.\n";
}
