From b2cde10e7e070045ae1a2eed5a0b842a905921c8 Mon Sep 17 00:00:00 2001
From: Adam Vandenberg <flangy@gmail.com>
Date: Tue, 21 Sep 2010 21:25:33 -0700
Subject: [PATCH] ImageMagick - use svn repo instead of tarballs

The ImageMagick mirrors like to drop old tarballs, which means that our
formula breaks whenever the version we're using disappears.

So I've switched to using their SVN repo (and added a --HEAD build.)

Caveat: Their SVN repo is only served over https, with a bad cert,
so this brew know has a custom SVN download strategy that auto-accepts
that cert.

If this bothers you, get ImageMagick to fix their cert upstream (or
let us know where a stable tarball mirror lives.)
---
 Library/Homebrew/download_strategy.rb | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Library/Homebrew/download_strategy.rb b/Library/Homebrew/download_strategy.rb
index e57c2fc80c..767a26d159 100644
--- a/Library/Homebrew/download_strategy.rb
+++ b/Library/Homebrew/download_strategy.rb
@@ -198,12 +198,16 @@ class SubversionDownloadStrategy <AbstractDownloadStrategy
     end
   end
 
+  def _fetch_command svncommand, url, target
+    [svn, svncommand, '--force', url, target]
+  end
+
   def fetch_repo target, url, revision=nil, ignore_externals=false
     # Use "svn up" when the repository already exists locally.
     # This saves on bandwidth and will have a similar effect to verifying the
     # cache as it will make any changes to get the right revision.
     svncommand = target.exist? ? 'up' : 'checkout'
-    args = [svn, svncommand, '--force', url, target]
+    args = _fetch_command svncommand, url, target
     args << '-r' << revision if revision
     args << '--ignore-externals' if ignore_externals
     quiet_safe_system *args