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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
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