logstash@2.4: import from homebrew/versions.

Formula/logstash@2.4.rb

@@ -0,0 +1,50 @@
+class LogstashAT24 < Formula
+  desc "Tool for managing events and logs"
+  homepage "https://www.elastic.co/products/logstash"
+  url "https://download.elastic.co/logstash/logstash/logstash-2.4.0.tar.gz"
+  sha256 "622c435c5c0f40e205fd4d9411eb409cc52992cf62dde4c7cd46e480cd8247cc"
+
+  head do
+    url "https://github.com/elastic/logstash.git"
+    depends_on :java => "1.8"
+  end
+
+  bottle :unneeded
+
+  depends_on :java => "1.7+"
+
+  def install
+    if build.head?
+      # Build the package from source
+      system "rake", "artifact:tar"
+      # Extract the package to the current directory
+      mkdir "tar"
+      system "tar", "--strip-components=1", "-xf", Dir["build/logstash-*.tar.gz"].first, "-C", "tar"
+      cd "tar"
+    end
+
+    inreplace %w[bin/logstash], %r{^\. "\$\(cd `dirname \$SOURCEPATH`\/\.\.; pwd\)\/bin\/logstash\.lib\.sh\"}, ". #{libexec}/bin/logstash.lib.sh"
+    inreplace %w[bin/logstash-plugin], %r{^\. "\$\(cd `dirname \$0`\/\.\.; pwd\)\/bin\/logstash\.lib\.sh\"}, ". #{libexec}/bin/logstash.lib.sh"
+    inreplace %w[bin/logstash.lib.sh], /^LOGSTASH_HOME=.*$/, "LOGSTASH_HOME=#{libexec}"
+    libexec.install Dir["*"]
+    bin.install_symlink libexec/"bin/logstash"
+    bin.install_symlink libexec/"bin/logstash-plugin"
+  end
+
+  def caveats; <<-EOS.undent
+    Please read the getting started guide located at:
+      https://www.elastic.co/guide/en/logstash/current/getting-started-with-logstash.html
+    The logstash `plugin` command is available as `logstash-plugin`.
+    EOS
+  end
+
+  test do
+    (testpath/"simple.conf").write <<-EOS.undent
+      input { stdin { type => stdin } }
+      output { stdout { codec => rubydebug } }
+    EOS
+
+    output = pipe_output("#{bin}/logstash -f simple.conf", "hello world\n")
+    assert_match /hello world/, output
+  end
+end