apache-pulsar 2.8.0 (new formula)

* New Formula: Apache Pulsar
  This commit adds a formula for the Apache Pulsar message broker
  (https://pulsar.apache.org/). The broker will operate in its minimal/
  default "standalone" mode when started by this formula, which is
  roughly equivalent to the behavior of ZooKeeper and other similar
  formulae.
* Address linter errors
* Address reviewer comments
* Attempt to resolve CI failures: make /etc path
* try moving directory creation to before tar command
* Remove asterisk for config symlink
* Remove non-optional cross compiled PPC file
* Add protobuf as build dependency
* Attempt to force x86_64 architecture to get m1 build working
* Fix linter issues
* Try overriding protoc command
* Fix trailing new line
* Try a newer version of protoc
* Try overriding grpc version as well
* Give up on versioning grpc and proto forward
* Constrain arch
* Constrain arch
* Support building from HEAD properly
* Address reviewer comments
* Link to upstream packaging issue and force JVM version
* Restore JVM version pin for build
* Reviewer suggestion: use utility fucntion for java home
* Fix mistaken non-string use of java_home_env
* Address reviewer comments
* Apply suggestions from code review
* Move log creation to postinstall
* Update Formula/apache-pulsar.rb

Closes #83238.

Co-authored-by: Carlo Cabrera <30379873+carlocab@users.noreply.github.com>
Co-authored-by: Zac Bentley <zbentley@users.noreply.github.com>
Signed-off-by: Carlo Cabrera <30379873+carlocab@users.noreply.github.com>
Signed-off-by: BrewTestBot <1589480+BrewTestBot@users.noreply.github.com>

Formula/apache-pulsar.rb

@@ -0,0 +1,74 @@
+class ApachePulsar < Formula
+  desc "Cloud-native distributed messaging and streaming platform"
+  homepage "https://pulsar.apache.org/"
+  url "https://www.apache.org/dyn/mirrors/mirrors.cgi?action=download&filename=pulsar/pulsar-2.8.0/apache-pulsar-2.8.0-src.tar.gz"
+  mirror "https://archive.apache.org/dist/pulsar/pulsar-2.8.0/apache-pulsar-2.8.0-src.tar.gz"
+  sha256 "0e161a81c62c7234c1e0c243bb6fe30046ec1cd01472618573ecdc2a73b1163b"
+  license "Apache-2.0"
+  head "https://github.com/apache/pulsar.git", branch: "master"
+
+  depends_on "autoconf" => :build
+  depends_on "automake" => :build
+  depends_on "cppunit" => :build
+  depends_on "libtool" => :build
+  depends_on "maven" => :build
+  depends_on "pkg-config" => :build
+  depends_on "protobuf" => :build
+  depends_on arch: :x86_64
+  depends_on "openjdk@11"
+
+  def install
+    # Missing executable permission reported upstream: https://github.com/apache/pulsar/issues/11833
+    chmod "+x", "src/rename-netty-native-libs.sh"
+
+    with_env("TMPDIR" => buildpath, **Language::Java.java_home_env("11")) do
+      system "mvn", "-X", "clean", "package", "-DskipTests", "-Pcore-modules"
+    end
+
+    built_version = if build.head?
+      # This script does not need any particular version of py3 nor any libs, so both
+      # brew-installed python and system python will work.
+      Utils.safe_popen_read("python3", "src/get-project-version.py").strip
+    else
+      version
+    end
+
+    binpfx = "apache-pulsar-#{built_version}"
+    system "tar", "-xf", "distribution/server/target/#{binpfx}-bin.tar.gz"
+    libexec.install "#{binpfx}/bin", "#{binpfx}/lib", "#{binpfx}/instances", "#{binpfx}/conf"
+    (libexec/"lib/presto/bin/procname/Linux-ppc64le").rmtree
+    pkgshare.install "#{binpfx}/examples", "#{binpfx}/licenses"
+    (etc/"pulsar").install_symlink libexec/"conf"
+
+    libexec.glob("bin/*") do |path|
+      if !path.fnmatch?("*common.sh") && !path.directory?
+        bin_name = path.basename
+        (bin/bin_name).write_env_script libexec/"bin"/bin_name, Language::Java.java_home_env("11")
+      end
+    end
+  end
+
+  def post_install
+    (var/"log/pulsar").mkpath
+  end
+
+  service do
+    run [bin/"pulsar", "standalone"]
+    log_path var/"log/pulsar/output.log"
+    error_log_path var/"log/pulsar/error.log"
+  end
+
+  test do
+    fork do
+      exec bin/"pulsar", "standalone", "--zookeeper-dir", "#{testpath}/zk", " --bookkeeper-dir", "#{testpath}/bk"
+    end
+    # The daemon takes some time to start; pulsar-client will retry until it gets a connection, but emit confusing
+    # errors until that happens, so sleep to reduce log spam.
+    sleep 15
+
+    output = shell_output("#{bin}/pulsar-client produce my-topic --messages 'hello-pulsar'")
+    assert_match "1 messages successfully produced", output
+    output = shell_output("#{bin}/pulsar initialize-cluster-metadata -c a -cs localhost -uw localhost -zk localhost")
+    assert_match "Cluster metadata for 'a' setup correctly", output
+  end
+end