Homebrew formulae for graphite (carbon / whisper)

carbon.rb

require 'formula'

class Carbon < Formula
  homepage 'http://graphite.wikidot.com/'
  url 'http://pypi.python.org/packages/source/c/carbon/carbon-0.9.10.tar.gz'
  md5 '1d85d91fe220ec69c0db3037359b691a'

  depends_on 'python'
  depends_on 'twisted' => :python
  depends_on 'whisper'

  # https://github.com/mxcl/homebrew/wiki/Homebrew-and-Python
  def install
    # In order to install into the Cellar, the dir must exist and be in the PYTHONPATH.
    temp_site_packages = lib/which_python/'site-packages'
    mkdir_p temp_site_packages
    ENV['PYTHONPATH'] = temp_site_packages

    args = [
      "--no-user-cfg",
      "--verbose",
      "install",
      "--force",
      "--install-scripts=#{bin}",
      "--install-lib=#{temp_site_packages}",
      "--install-data=#{share}",
      "--install-headers=#{include}",
      "--record=installed-files.txt"
    ]

    system "python", "-s", "setup.py", *args

    conf_path.install Dir['conf/*']
  end

  def conf_path
    etc/'carbon'
  end

  def patches
    StringIO.new(<<-END)
diff --git a/bin/carbon-client.py b/bin/carbon-client.py
index ed6a7e7..464f375 100755
--- a/bin/carbon-client.py
+++ b/bin/carbon-client.py
@@ -21,7 +21,7 @@ from optparse import OptionParser
 # Figure out where we're installed
 BIN_DIR = dirname(abspath(__file__))
 ROOT_DIR = dirname(BIN_DIR)
-CONF_DIR = join(ROOT_DIR, 'conf')
+CONF_DIR = '#{conf_path}'
 default_relayrules = join(CONF_DIR, 'relay-rules.conf')

 # Make sure that carbon's 'lib' dir is in the $PYTHONPATH if we're running from
diff --git a/lib/carbon/conf.py b/lib/carbon/conf.py
index 903fc09..3e310dc 100644
--- a/lib/carbon/conf.py
+++ b/lib/carbon/conf.py
@@ -462,7 +462,7 @@ def read_config(program, options, **kwargs):
     # 'GRAPHITE_CONF_DIR' environment variable.
     settings.setdefault("CONF_DIR",
                         os.environ.get("GRAPHITE_CONF_DIR",
-                                       join(graphite_root, "conf")))
+                                       '#{conf_path}'))
     if options["config"] is None:
         options["config"] = join(settings["CONF_DIR"], "carbon.conf")
     else:
    END
  end

  def which_python
    # Update this once we have something like [this](https://github.com/mxcl/homebrew/issues/11204)
    "python" + `python -c 'import sys;print(sys.version[:3])'`.strip
  end
end

whisper.rb

require 'formula'

class Whisper < Formula
  homepage 'http://graphite.wikidot.com/'
  url 'http://pypi.python.org/packages/source/w/whisper/whisper-0.9.10.tar.gz'
  md5 '218aadafcc0a606f269b1b91b42bde3f'

  depends_on 'python'

  # https://github.com/mxcl/homebrew/wiki/Homebrew-and-Python
  def install
    # In order to install into the Cellar, the dir must exist and be in the PYTHONPATH.
    temp_site_packages = lib/which_python/'site-packages'
    mkdir_p temp_site_packages
    ENV['PYTHONPATH'] = temp_site_packages

    args = [
      "--no-user-cfg",
      "--verbose",
      "install",
      "--force",
      "--install-scripts=#{bin}",
      "--install-lib=#{temp_site_packages}",
      "--install-data=#{share}",
      "--install-headers=#{include}",
      "--record=installed-files.txt"
    ]

    system "python", "-s", "setup.py", *args
  end

  def which_python
    # Update this once we have something like [this](https://github.com/mxcl/homebrew/issues/11204)
    "python" + `python -c 'import sys;print(sys.version[:3])'`.strip
  end
end