File:  [LON-CAPA] / CVSROOT / cvs2rss.pl
Revision 1.8: download - view: text, annotated - select for diffs
Mon Oct 24 21:38:14 2005 UTC (16 years, 11 months ago) by albertel
Branches: MAIN
CVS tags: HEAD
- retabinate

#!/usr/bin/perl
# Kyle Christensen <kyle@junglist.org>
# http://junglist.org/files/scripts/cvs2rss.pl
# 
# This script (when setup properly) will magically create an RSS 2.0 compliant feed
# that logs your cvs commits as well as a diff of the changes made.
#
# Run this from your CVSROOT/loginfo like:
#
#	/path/to/cvs2rss.pl %{sVv}
#
# Also, make sure your apache server has an AddType for rss like:
#
# 	AddType application/rss+xml .rss
#
# P.S. The "other" cvs2rss.pl isn't really cvs2rss, it is more like cvs2xml, boo!
# P.P.S. Parts of this are stolen from commit2rss.rb and the XML::RSS examples.
#
# Version 1.0 - 08.24.04 RSS Compliant, no cvs diff capability yet..
# Version 1.1 - 08.31.04 Adding CVS Diff capability
# Edit by Guy Albertelli, -- corrected the packaging of Entities
#                          - commits now <pre>ed
#                          - removed html rants
#

use strict;
use HTML::Entities();
use XML::RSS;
use POSIX;

# Stuff you need to setup 
my $rssFeed ="/home/loninst/public_html/loncapa.rss";
my $emailDomain = "loncapa.org";
my $channelTitle = "Lon-CAPA RSS Feed";
my $channelLink = "http://install.loncapa.org/loncapa.rss";
my $numEntries = 200;

# Set this to 1 to enable cvs rdiff
my $cvsDiff = 1;

# Leave everything else alone
my $author = getpwuid(getuid()) . "\@" . $emailDomain;
$author = 'guy' . "\@" . 'albertelli.com';
my $pubDate = strftime('%a, %d %b %Y %H:%M:%S %Z',localtime(time));
my $description;
my @title=split(",",$ARGV[0]);

my $rss = new XML::RSS(version => '2.0');

# If rssFeed exists, parse it
if (-r "$rssFeed") {
    $rss->parsefile($rssFeed);
}

$rss->channel(
	      title=> $channelTitle,
	      link => $channelLink,
	      language => 'en',
	      description => $channelTitle,
	      copyright => '(c) 2005 MSU Board of Trustees.',
	      pubDate => $pubDate 
	      );


# Limit entries in the feed to $numEntries
pop(@{$rss->{'items'}}) while (@{$rss->{'items'}} >= $numEntries);

# Format title of the rss item
# Remove space, append / and set title to /file/that/changed - oldversion/newversion
$title[0] =~s/ /\//;

# Format the cvslog msg itself
while (<STDIN>) {
    chomp($_);
    if ($_=~/^[A-Z].*:\s*$/) {
	$_ = "<br /><b>" . &HTML::Entities::encode($_,'<>&"') . "</b><br />";
    } else {
	$_ = &HTML::Entities::encode($_,'<>&"');
	$_ .= "<br />";
    }
    $description .= $_;
}

if ($cvsDiff == 1) { 

    # If the old version of the file is not NONE (if
    # it isn't a new file), and if it is a pm/pl/conf/tab file.
    # This will rdiff it against the previous version, and
    # include that diff in the rss feed

    if (($title[1] != "NONE") && ($title[0]=~/(.*).(pm|pl|conf|tab)$/)){
	my $tmpFile = "/tmp/diff.$$";
	my $cmdLine = "cvs -n rdiff -u -kk -r " . $title[1] .  " -r " . $title[2] . " " . $title[0] . ">" . $tmpFile;
	system($cmdLine);
	
	$description .= "<br /><b>Differences:</b><br /><pre>";
	open CVSDIFF, "<" . $tmpFile;
	foreach my $line (<CVSDIFF>) {
	    $description .= &HTML::Entities::encode($line,'<>&"');
	}
	$description .= "</pre>";
	unlink($tmpFile);   
    } 
}

$rss->add_item(
	       title => "/" . $title[0] . " - " . $title[1] . "/" . $title[2],
	       author => $author,
	       description=> $description,
	       mode => 'insert',
	       pubDate => $pubDate,
	       link => 'http://install.loncapa.org/cgi-bin/cvsweb.cgi/'.$title[0].'.diff?r1='.$title[1].';r2='.$title[2].';f=h'
	       );		

foreach my $element (@{$rss->{'items'}}) {
    $element->{'description'} = &HTML::Entities::encode($element->{'description'},'<>&"'); 
}

$rss->save($rssFeed);

# Rsync this rss feed to another publically accessable machine.
#my $cmdLine="rsync -r -e ssh --delete /export/www/rss/html/ builder\@monkey:/export/www/rss/html/";
#system($cmdLine);

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>