View source for RT Patch Manager

This is a python script written by [[User:Clark]] to track, fetch, and apply Ingo's -rt patches to a git kernel tree.  It can be fetched [http://people.redhat.com/williams/rtpatch/rtpatch here].

== Documentation == 

This python script started life as a convenience script that would tell me when Ingo released a new -rt patch, since there have been times when Ingo churned out four or more -rt patch spins in a twelve hour period :).

The script presumes the existance of two directories:

# A Patch directory for storing the patch
# A Linux git tree from kernel.org

Here's the usage message:

  $ rtpatch --help
  usage: rtpatch [options] <cmd>
   where [options] is one of:
       --gittree=<path> - specify git tree to apply [./linus-kernel.git]
       --patchdir=<path> - specify patch directory [./sources]
   where <cmd> is one of:
       check - get the latest version of the patch
       get   - fetch the latest version of the patch
       apply - fetch and apply the latest version of the patch
   running with no arguments checks for existance of the patch

So, to just check the current version available:
  $ rtpatch
  Available RT patch:
      patch-2.6.18-rt5

If you want to fetch this version of the patch:
  $ rtpatch get

You'll see a progress bar while the script retrieves the patch and saves it in your current directory

If you want to track the -rt patches using a git tree, make sure you have git installed on your system, make sure you have ''lots'' of disk space somewhere, change directories to that place and type:
  $ git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Then go away for a long time. When the command finishes you will have a clone of Linus's git tree and you're ready to fetch and apply the -rt patch. 

Assuming that you are in a directory that contains two subdirectories named '''source''' and '''linus-kernel.git''', you can issue the command:
  $ rtpatch apply

This will fetch the current -rt patch to the '''source''' directory and will then apply the patch to the '''linux-kernel.git''' git tree, (assuming that the patch hasn't already been applied). Your git tree will end up with a branch that is named after the -rt patch (e.g. if you issue the ''apply'' command and the current -rt patch is patch-2.6.18-rt5, you will end up with a branch named v2.6.18-rt5 in the git tree).

== External Links ==
* [[http://people.redhat.com/williams/rtpatch/rtpatch RT Patch Manager]]