Port to Akka

.gitignore

@@ -10,3 +10,4 @@ pony.exe
 *.pdb
 */build/
 .idea/
+/akka/target

akka/.scalafmt.conf

@@ -0,0 +1,3 @@
+version = 2.6.4
+align.preset = more
+maxColumn = 80

akka/README.md

@@ -0,0 +1,9 @@
+# ChatApp Benchmaek Akka
+
+## Build from source
+```
+./sbt update
+./sbt compile
+./sbt stage
+./target/universal/stage/bin/chat-app
+```

akka/build.sbt

@@ -0,0 +1,21 @@
+enablePlugins(JavaAppPackaging)
+
+name := "chat-app"
+version := "1.0"
+scalaVersion := "2.13.1"
+organization := "chatapp"
+val akkaVersion = "2.6.8"
+
+scalacOptions ++= Seq(
+  "-feature",
+  "-deprecation",
+  "-Xfatal-warnings"
+)
+
+libraryDependencies ++= Seq(
+  "com.typesafe.akka" %% "akka-actor-typed" % akkaVersion,
+  "ch.qos.logback" % "logback-classic" % "1.2.3",
+)
+
+mainClass in Compile := Some("chatapp.Main")
+discoveredMainClasses in Compile := Seq()

akka/project/build.properties

@@ -0,0 +1 @@
+sbt.version=1.3.6

akka/project/plugins.sbt

@@ -0,0 +1,2 @@
+addSbtPlugin("com.typesafe.sbt" % "sbt-native-packager" % "1.7.4")
+addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.0")

akka/sbt

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+./sbt-dist/bin/sbt "$@"

akka/sbt-dist/bin/sbt

@@ -0,0 +1,151 @@
+#!/usr/bin/env bash
+
+
+###  ------------------------------- ###
+###  Helper methods for BASH scripts ###
+###  ------------------------------- ###
+
+realpath () {
+(
+  TARGET_FILE="$1"
+  FIX_CYGPATH="$2"
+
+  cd "$(dirname "$TARGET_FILE")"
+  TARGET_FILE=$(basename "$TARGET_FILE")
+
+  COUNT=0
+  while [ -L "$TARGET_FILE" -a $COUNT -lt 100 ]
+  do
+      TARGET_FILE=$(readlink "$TARGET_FILE")
+      cd "$(dirname "$TARGET_FILE")"
+      TARGET_FILE=$(basename "$TARGET_FILE")
+      COUNT=$(($COUNT + 1))
+  done
+
+  # make sure we grab the actual windows path, instead of cygwin's path.
+  if [[ "x$FIX_CYGPATH" != "x" ]]; then
+    echo "$(cygwinpath "$(pwd -P)/$TARGET_FILE")"
+  else
+    echo "$(pwd -P)/$TARGET_FILE"
+  fi
+)
+}
+
+
+# Uses uname to detect if we're in the odd cygwin environment.
+is_cygwin() {
+  local os=$(uname -s)
+  case "$os" in
+    CYGWIN*) return 0 ;;
+    *)  return 1 ;;
+  esac
+}
+
+# TODO - Use nicer bash-isms here.
+CYGWIN_FLAG=$(if is_cygwin; then echo true; else echo false; fi)
+
+
+# This can fix cygwin style /cygdrive paths so we get the
+# windows style paths.
+cygwinpath() {
+  local file="$1"
+  if [[ "$CYGWIN_FLAG" == "true" ]]; then
+    echo $(cygpath -w $file)
+  else
+    echo $file
+  fi
+}
+
+. "$(dirname "$(realpath "$0")")/sbt-launch-lib.bash"
+
+
+declare -r noshare_opts="-Dsbt.global.base=project/.sbtboot -Dsbt.boot.directory=project/.boot -Dsbt.ivy.home=project/.ivy"
+declare -r sbt_opts_file=".sbtopts"
+declare -r etc_sbt_opts_file="${sbt_home}/conf/sbtopts"
+declare -r win_sbt_opts_file="${sbt_home}/conf/sbtconfig.txt"
+
+usage() {
+ cat <<EOM
+Usage: $script_name [options]
+
+  -h | -help         print this message
+  -v | -verbose      this runner is chattier
+  -d | -debug        set sbt log level to debug
+  -no-colors         disable ANSI color codes
+  -sbt-create        start sbt even if current directory contains no sbt project
+  -sbt-dir   <path>  path to global settings/plugins directory (default: ~/.sbt)
+  -sbt-boot  <path>  path to shared boot directory (default: ~/.sbt/boot in 0.11 series)
+  -ivy       <path>  path to local Ivy repository (default: ~/.ivy2)
+  -mem    <integer>  set memory options (default: $sbt_mem, which is $(get_mem_opts $sbt_mem))
+  -no-share          use all local caches; no sharing
+  -no-global         uses global caches, but does not use global ~/.sbt directory.
+  -jvm-debug <port>  Turn on JVM debugging, open at the given port.
+  -batch             Disable interactive mode
+
+  # sbt version (default: from project/build.properties if present, else latest release)
+  -sbt-version  <version>   use the specified version of sbt
+  -sbt-jar      <path>      use the specified jar as the sbt launcher
+  -sbt-rc                   use an RC version of sbt
+  -sbt-snapshot             use a snapshot version of sbt
+
+  # java version (default: java from PATH, currently $(java -version 2>&1 | grep version))
+  -java-home <path>         alternate JAVA_HOME
+
+  # jvm options and output control
+  JAVA_OPTS          environment variable, if unset uses "$java_opts"
+  SBT_OPTS           environment variable, if unset uses "$default_sbt_opts"
+  .sbtopts           if this file exists in the current directory, it is
+                     prepended to the runner args
+  /etc/sbt/sbtopts   if this file exists, it is prepended to the runner args
+  -Dkey=val          pass -Dkey=val directly to the java runtime
+  -J-X               pass option -X directly to the java runtime 
+                     (-J is stripped)
+  -S-X               add -X to sbt's scalacOptions (-S is stripped)
+
+In the case of duplicated or conflicting options, the order above
+shows precedence: JAVA_OPTS lowest, command line options highest.
+EOM
+}
+
+
+
+process_my_args () {
+  while [[ $# -gt 0 ]]; do
+    case "$1" in
+     -no-colors) addJava "-Dsbt.log.noformat=true" && shift ;;
+      -no-share) addJava "$noshare_opts" && shift ;;
+     -no-global) addJava "-Dsbt.global.base=$(pwd)/project/.sbtboot" && shift ;;
+      -sbt-boot) require_arg path "$1" "$2" && addJava "-Dsbt.boot.directory=$2" && shift 2 ;;
+       -sbt-dir) require_arg path "$1" "$2" && addJava "-Dsbt.global.base=$2" && shift 2 ;;
+     -debug-inc) addJava "-Dxsbt.inc.debug=true" && shift ;;
+         -batch) exec </dev/null && shift ;;
+
+    -sbt-create) sbt_create=true && shift ;;
+
+              *) addResidual "$1" && shift ;;
+    esac
+  done
+
+  # Now, ensure sbt version is used.
+  [[ "${sbt_version}XXX" != "XXX" ]] && addJava "-Dsbt.version=$sbt_version" 
+}
+
+loadConfigFile() {
+  cat "$1" | sed '/^\#/d' | while read line; do
+    eval echo $line
+  done
+}
+
+# TODO - Pull in config based on operating system... (MSYS + cygwin should pull in txt file).
+# Here we pull in the global settings configuration.
+[[ -f "$etc_sbt_opts_file" ]] && set -- $(loadConfigFile "$etc_sbt_opts_file") "$@"
+# -- Windows behavior stub'd
+# JAVA_OPTS=$(cat "$WDIR/sbtconfig.txt" | sed -e 's/\r//g' -e 's/^#.*$//g' | sed ':a;N;$!ba;s/\n/ /g')
+
+
+#  Pull in the project-level config file, if it exists.
+[[ -f "$sbt_opts_file" ]] && set -- $(loadConfigFile "$sbt_opts_file") "$@"
+
+
+run "$@"
+