New formula: zookeeper

ZooKeeper is a centralized service for maintaining configuration information,
naming, providing distributed synchronization, and providing group services.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

1 files changed, 69 insertions, 0 deletions

diff --git a/Library/Formula/zookeeper.rb b/Library/Formula/zookeeper.rb
new file mode 100644
index 000000000..59cf0dd14
--- /dev/null
+++ b/Library/Formula/zookeeper.rb
@@ -0,0 +1,69 @@
+require 'formula'
+
+class Zookeeper <Formula
+  url 'http://mirror.switch.ch/mirror/apache/dist/hadoop/zookeeper/zookeeper-3.3.1/zookeeper-3.3.1.tar.gz'
+  homepage 'http://hadoop.apache.org/zookeeper'
+  md5 'bdcd73634e3f6623a025854f853c3d0d'
+
+  def shim_script target
+    <<-EOS.undent
+      #!/usr/bin/env bash
+      . "#{etc}/zookeeper/defaults"
+      cd #{libexec}/bin
+      ./#{target} $*
+    EOS
+  end
+
+  def default_zk_env
+    <<-EOS.undent
+      export ZOOCFGDIR="#{etc}/zookeeper"
+    EOS
+  end
+
+  def default_log4j_properties
+    <<-EOS.undent
+      log4j.rootCategory=WARN, zklog
+
+      log4j.appender.zklog = org.apache.log4j.FileAppender
+      log4j.appender.zklog.File = #{var}/log/zookeeper/zookeeper.log
+      log4j.appender.zklog.Append = true
+      log4j.appender.zklog.layout = org.apache.log4j.PatternLayout
+      log4j.appender.zklog.layout.ConversionPattern = %d{yyyy-MM-dd HH:mm:ss} %c{1} [%p] %m%n
+    EOS
+  end
+
+  def install
+    # Remove windows executables
+    rm_f Dir["bin/*.cmd"]
+
+    # Install Java stuff
+    libexec.install %w(bin contrib lib)
+    libexec.install Dir['*.jar']
+
+    # Create neccessary directories
+    bin.mkpath
+    (etc+'zookeeper').mkpath
+    (var+'log/zookeeper').mkpath
+    (var+'run/zookeeper/data').mkpath
+
+    # Install shim scripts to bin
+    Dir["#{libexec}/bin/*.sh"].map { |p| Pathname.new p }.each { |path|
+      next if path == libexec+'bin/zkEnv.sh'
+      script_name = path.basename
+      bin_name    = path.basename '.sh'
+      (bin+bin_name).write shim_script(script_name)
+    }
+
+    # Install default config files
+    defaults = etc+'zookeeper/defaults'
+    defaults.write(default_zk_env) unless defaults.exist?
+
+    log4j_properties = etc+'zookeeper/log4j.properties'
+    log4j_properties.write(default_log4j_properties) unless log4j_properties.exist?
+
+    unless (etc+'zookeeper/zoo.cfg').exist?
+      inreplace 'conf/zoo_sample.cfg', /^dataDir=.*/, "dataDir=#{var}/run/zookeeper/data"
+      (etc+'zookeeper').install 'conf/zoo_sample.cfg'
+    end
+  end
+end