URM - Rubygems support

Hi Till,

I've got tired of copy/pasting and tweaking of RubyGems entries in your
Upstrean Release Monitoring. So I put together small patch which should
add RUBYGEMS-DEFAULT aliases for Regex and URL.

Unfortunately, I am not Python developer neither I have clue how to test
the code I have developed, so I just blindly believe it works as
supposed. Could you please review the code and merge it or send me some
feedback?

And I have one more note. There is used several times the -DEFAULT
suffix for aliases. While I see that it has its reasoning for the
CPAN-DEFAULT and similar aliases, it has no meaning for rubygems,
because the Regex does not using the default Regex, so the alias name
should be adjusted probably. The default in URL aliases has no meaning
at all IMO. Is it possible to remove the suffix? At least for Rubygems,
although it would not be consistent :)

Also, there seems to be some undocumented regex aliases, such as
CPAN-DEFAULT, PEAR-DEFAULT and PECL-DEFAULT. Could you add the
documentation on wiki or shall I?

Thank you and best regards

Vit

>From 0c7097f750755c70d84e2e118e0c73b7917b5c95 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C3=ADt=20Ondruch?= <vondruch@redhat.com>
Date: Wed, 12 Oct 2011 16:23:31 +0200
Subject: [PATCH] Add URL and regex aliases for RubyGems.

1 files changed, 9 insertions, 1 deletions

diff --git a/cnucnu/package_list.py b/cnucnu/package_list.py
index 0af4f16..adb6651 100755
--- a/cnucnu/package_list.py
+++ b/cnucnu/package_list.py
@@ -150,6 +150,10 @@ class Package(object):
             if not name_override and name.startswith("php-pecl-"):
                 name = name[len("php-pecl-"):].replace("-","_")
                 regex = "DEFAULT"
+        elif regex == "RUBYGEMS-DEFAULT":
+            # strip "rubygem-" prefix only if name was not overridden
+            if not name_override and name.startswith("rubygem-"):
+                name = name[len("rubygem-"):]
 
         # no elif here, because the previous regex aliases are only for name altering
         if regex == "DEFAULT":
@@ -166,6 +170,8 @@ class Package(object):
             regex = '<a href="/projects/[^/]*/releases/[0-9]*">([^<]*)</a>'
         elif regex == "HACKAGE-DEFAULT" or regex== "DIR-LISTING-DEFAULT":
             regex = 'href="([0-9][0-9.]*)/"'
+        elif regex == "RUBYGEMS-DEFAULT":
+            regex = '"gem_uri":"http:\/\/rubygems.org\/gems\/%s-([0-9.]*?)\.gem"' % re.escape(name)
 
         self.__regex = regex
         self._invalidate_caches()
@@ -178,7 +184,7 @@ class Package(object):
         name = self.name
         # allow name override with e.g. SF-DEFAULT:othername
         if url:
-            name_override = re.match(r"^((?:SF|FM|GNU|CPAN|HACKAGE|DEBIAN|GOOGLE|PEAR|PECL|PYPI|LP|GNOME)-DEFAULT)(?::(.+))$", url)
+            name_override = re.match(r"^((?:SF|FM|GNU|CPAN|HACKAGE|DEBIAN|GOOGLE|PEAR|PECL|PYPI|LP|GNOME|RUBYGEMS)-DEFAULT)(?::(.+))$", url)
             if name_override:
                 url = name_override.group(1)
                 name = name_override.group(2)
@@ -219,6 +225,8 @@ class Package(object):
             url = "https://launchpad.net/%s/+download" % name
         elif url == "GNOME-DEFAULT":
             url = "http://download.gnome.org/sources/%s/*/" % name
+        elif url == "RUBYGEMS-DEFAULT":
+            url = "http://rubygems.org/api/v1/gems/%s.json" % name
 
         self.__url = url
         self.html = None