From cbac6637a97dfbaa458d4cfc08af106008c8adbc Mon Sep 17 00:00:00 2001
From: Maksim Kostromin <maksim@beachfront.com>
Date: Mon, 7 Aug 2023 21:29:34 -0400
Subject: [PATCH 1/4] Add github actions.

---
 .travis.yml                                   |  37 +-
 typed-akka-examples/sbtw                      | 502 ++++++++++--------
 .../github/daggerok/akka/typed/MainSpec.scala |   2 -
 3 files changed, 313 insertions(+), 228 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 64c1b34..772fc0c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -39,23 +39,24 @@ stages:
 - deploy
 jobs:
   include:
-  - stage: test
-    jdk: openjdk8
-    name: test typed-akka-examples scalaAccount openjdk8
-    script: cd $TRAVIS_BUILD_DIR/typed-akka-examples/ && ./sbtw "project scalaAccount" clean package run
-  - stage: test
-    jdk: openjdk8
-    name: test typed-akka-examples javaHola openjdk8
-    script: cd $TRAVIS_BUILD_DIR/typed-akka-examples/ && ./sbtw "project javaHola" clean test package run
-  - stage: test
-    jdk: openjdk8
-    name: test typed-akka-examples javaHello openjdk8
-    script: cd $TRAVIS_BUILD_DIR/typed-akka-examples/ && ./sbtw "project javaHello" clean test package run
-  - stage: test
-    jdk: openjdk8
-    name: test typed-akka-examples scalaHello openjdk8
-    script: cd $TRAVIS_BUILD_DIR/typed-akka-examples/ && ./sbtw "project scalaHello" clean test package run
-  #
+
+#  - stage: test
+#    jdk: openjdk8
+#    name: test typed-akka-examples scalaAccount openjdk8
+#    script: cd $TRAVIS_BUILD_DIR/typed-akka-examples/ && ./sbtw "project scalaAccount" clean package run
+#  - stage: test
+#    jdk: openjdk8
+#    name: test typed-akka-examples javaHola openjdk8
+#    script: cd $TRAVIS_BUILD_DIR/typed-akka-examples/ && ./sbtw "project javaHola" clean test package run
+#  - stage: test
+#    jdk: openjdk8
+#    name: test typed-akka-examples javaHello openjdk8
+#    script: cd $TRAVIS_BUILD_DIR/typed-akka-examples/ && ./sbtw "project javaHello" clean test package run
+#  - stage: test
+#    jdk: openjdk8
+#    name: test typed-akka-examples scalaHello openjdk8
+#    script: cd $TRAVIS_BUILD_DIR/typed-akka-examples/ && ./sbtw "project scalaHello" clean test package run
+
 #    - stage: test
 #      jdk: openjdk8
 #      name: sbt run main-akka
@@ -95,7 +96,7 @@ jobs:
 #      jdk: openjdk8
 #      name: test akka-scala-vs-java javaHello
 #      script: cd $TRAVIS_BUILD_DIR/akka-scala-vs-java/ && ./sbtw "project javaHello" clean test package run
-#    #
+
   - stage: test
     jdk: openjdk11
     name: sbt run main-akka openjdk11
diff --git a/typed-akka-examples/sbtw b/typed-akka-examples/sbtw
index 5475171..629896f 100755
--- a/typed-akka-examples/sbtw
+++ b/typed-akka-examples/sbtw
@@ -3,14 +3,42 @@
 # A more capable sbt runner, coincidentally also called sbt.
 # Author: Paul Phillips <paulp@improving.org>
 # https://github.com/paulp/sbt-extras
+#
+# Generated from http://www.opensource.org/licenses/bsd-license.php
+# Copyright (c) 2011, Paul Phillips. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#     * Neither the name of the author nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+# TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 set -o pipefail
 
-declare -r sbt_release_version="1.2.8"
-declare -r sbt_unreleased_version="1.3.0-RC1"
+declare -r sbt_release_version="1.9.3"
+declare -r sbt_unreleased_version="1.9.3"
 
-declare -r latest_213="2.13.0"
-declare -r latest_212="2.12.8"
+declare -r latest_213="2.13.11"
+declare -r latest_212="2.12.18"
 declare -r latest_211="2.11.12"
 declare -r latest_210="2.10.7"
 declare -r latest_29="2.9.3"
@@ -18,18 +46,17 @@ declare -r latest_28="2.8.2"
 
 declare -r buildProps="project/build.properties"
 
-declare -r sbt_launch_ivy_release_repo="http://repo.typesafe.com/typesafe/ivy-releases"
+declare -r sbt_launch_ivy_release_repo="https://repo.typesafe.com/typesafe/ivy-releases"
 declare -r sbt_launch_ivy_snapshot_repo="https://repo.scala-sbt.org/scalasbt/ivy-snapshots"
-declare -r sbt_launch_mvn_release_repo="http://repo.scala-sbt.org/scalasbt/maven-releases"
-declare -r sbt_launch_mvn_snapshot_repo="http://repo.scala-sbt.org/scalasbt/maven-snapshots"
+declare -r sbt_launch_mvn_release_repo="https://repo1.maven.org/maven2"
+declare -r sbt_launch_mvn_snapshot_repo="https://repo.scala-sbt.org/scalasbt/maven-snapshots"
 
-declare -r default_jvm_opts_common="-Xms512m -Xss2m"
-declare -r noshare_opts="-Dsbt.global.base=project/.sbtboot -Dsbt.boot.directory=project/.boot -Dsbt.ivy.home=project/.ivy"
+declare -r default_jvm_opts_common="-Xms512m -Xss2m -XX:MaxInlineLevel=18"
+declare -r noshare_opts="-Dsbt.global.base=project/.sbtboot -Dsbt.boot.directory=project/.boot -Dsbt.ivy.home=project/.ivy -Dsbt.coursier.home=project/.coursier"
 
 declare sbt_jar sbt_dir sbt_create sbt_version sbt_script sbt_new
 declare sbt_explicit_version
 declare verbose noshare batch trace_level
-declare debugUs
 
 declare java_cmd="java"
 declare sbt_launch_dir="$HOME/.sbt/launchers"
@@ -41,11 +68,14 @@ declare -a java_args scalac_args sbt_commands residual_args
 # args to jvm/sbt via files or environment variables
 declare -a extra_jvm_opts extra_sbt_opts
 
-echoerr () { echo >&2 "$@"; }
-vlog ()    { [[ -n "$verbose" ]] && echoerr "$@"; }
-die ()     { echo "Aborting: $*" ; exit 1; }
+echoerr() { echo >&2 "$@"; }
+vlog()    { [[ -n "$verbose" ]] && echoerr "$@"; }
+die()     {
+  echo "Aborting: $*"
+  exit 1
+}
 
-setTrapExit () {
+setTrapExit() {
   # save stty and trap exit, to ensure echo is re-enabled if we are interrupted.
   SBT_STTY="$(stty -g 2>/dev/null)"
   export SBT_STTY
@@ -64,9 +94,12 @@ setTrapExit () {
 
 # this seems to cover the bases on OSX, and someone will
 # have to tell me about the others.
-get_script_path () {
+get_script_path() {
   local path="$1"
-  [[ -L "$path" ]] || { echo "$path" ; return; }
+  [[ -L "$path" ]] || {
+    echo "$path"
+    return
+  }
 
   local -r target="$(readlink "$path")"
   if [[ "${target:0:1}" == "/" ]]; then
@@ -81,7 +114,7 @@ declare -r script_path
 script_name="${script_path##*/}"
 declare -r script_name
 
-init_default_option_file () {
+init_default_option_file() {
   local overriding_var="${!1}"
   local default_file="$2"
   if [[ ! -r "$default_file" && "$overriding_var" =~ ^@(.*)$ ]]; then
@@ -94,66 +127,81 @@ init_default_option_file () {
 }
 
 sbt_opts_file="$(init_default_option_file SBT_OPTS .sbtopts)"
+sbtx_opts_file="$(init_default_option_file SBTX_OPTS .sbtxopts)"
 jvm_opts_file="$(init_default_option_file JVM_OPTS .jvmopts)"
 
-build_props_sbt () {
-  [[ -r "$buildProps" ]] && \
+build_props_sbt() {
+  [[ -r "$buildProps" ]] &&
     grep '^sbt\.version' "$buildProps" | tr '=\r' ' ' | awk '{ print $2; }'
 }
 
-set_sbt_version () {
+set_sbt_version() {
   sbt_version="${sbt_explicit_version:-$(build_props_sbt)}"
   [[ -n "$sbt_version" ]] || sbt_version=$sbt_release_version
   export sbt_version
 }
 
-url_base () {
+url_base() {
   local version="$1"
 
   case "$version" in
-        0.7.*) echo "http://simple-build-tool.googlecode.com" ;;
-      0.10.* ) echo "$sbt_launch_ivy_release_repo" ;;
+    0.7.*)     echo "https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/simple-build-tool" ;;
+    0.10.*)    echo "$sbt_launch_ivy_release_repo" ;;
     0.11.[12]) echo "$sbt_launch_ivy_release_repo" ;;
     0.*-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]-[0-9][0-9][0-9][0-9][0-9][0-9]) # ie "*-yyyymmdd-hhMMss"
-               echo "$sbt_launch_ivy_snapshot_repo" ;;
-          0.*) echo "$sbt_launch_ivy_release_repo" ;;
-    *-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]-[0-9][0-9][0-9][0-9][0-9][0-9]) # ie "*-yyyymmdd-hhMMss"
-               echo "$sbt_launch_mvn_snapshot_repo" ;;
-            *) echo "$sbt_launch_mvn_release_repo" ;;
+      echo          "$sbt_launch_ivy_snapshot_repo" ;;
+    0.*)       echo "$sbt_launch_ivy_release_repo" ;;
+    *-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]T[0-9][0-9][0-9][0-9][0-9][0-9]) # ie "*-yyyymmddThhMMss"
+      echo          "$sbt_launch_mvn_snapshot_repo" ;;
+    *)         echo "$sbt_launch_mvn_release_repo" ;;
   esac
 }
 
-make_url () {
+make_url() {
   local version="$1"
 
   local base="${sbt_launch_repo:-$(url_base "$version")}"
 
   case "$version" in
-        0.7.*) echo "$base/files/sbt-launch-0.7.7.jar" ;;
-      0.10.* ) echo "$base/org.scala-tools.sbt/sbt-launch/$version/sbt-launch.jar" ;;
+    0.7.*)     echo "$base/sbt-launch-0.7.7.jar" ;;
+    0.10.*)    echo "$base/org.scala-tools.sbt/sbt-launch/$version/sbt-launch.jar" ;;
     0.11.[12]) echo "$base/org.scala-tools.sbt/sbt-launch/$version/sbt-launch.jar" ;;
-          0.*) echo "$base/org.scala-sbt/sbt-launch/$version/sbt-launch.jar" ;;
-            *) echo "$base/org/scala-sbt/sbt-launch/$version/sbt-launch.jar" ;;
+    0.*)       echo "$base/org.scala-sbt/sbt-launch/$version/sbt-launch.jar" ;;
+    *)         echo "$base/org/scala-sbt/sbt-launch/$version/sbt-launch-${version}.jar" ;;
   esac
 }
 
-addJava ()     { vlog "[addJava] arg = '$1'"   ;     java_args+=("$1"); }
-addSbt ()      { vlog "[addSbt] arg = '$1'"    ;  sbt_commands+=("$1"); }
-addScalac ()   { vlog "[addScalac] arg = '$1'" ;   scalac_args+=("$1"); }
-addResidual () { vlog "[residual] arg = '$1'"  ; residual_args+=("$1"); }
+addJava()      {
+  vlog "[addJava] arg = '$1'"
+  java_args+=("$1")
+}
+addSbt()       {
+  vlog "[addSbt] arg = '$1'"
+  sbt_commands+=("$1")
+}
+addScalac()    {
+  vlog "[addScalac] arg = '$1'"
+  scalac_args+=("$1")
+}
+addResidual()  {
+  vlog "[residual] arg = '$1'"
+  residual_args+=("$1")
+}
 
-addResolver () { addSbt "set resolvers += $1"; }
-addDebugger () { addJava "-Xdebug" ; addJava "-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=$1"; }
-setThisBuild () {
+addResolver() { addSbt "set resolvers += $1"; }
+
+addDebugger() { addJava "-Xdebug" && addJava "-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=$1"; }
+
+setThisBuild() {
   vlog "[addBuild] args = '$*'"
   local key="$1" && shift
   addSbt "set $key in ThisBuild := $*"
 }
-setScalaVersion () {
+setScalaVersion() {
   [[ "$1" == *"-SNAPSHOT" ]] && addResolver 'Resolver.sonatypeRepo("snapshots")'
   addSbt "++ $1"
 }
-setJavaHome () {
+setJavaHome() {
   java_cmd="$1/bin/java"
   setThisBuild javaHome "_root_.scala.Some(file(\"$1\"))"
   export JAVA_HOME="$1"
@@ -166,9 +214,10 @@ getJavaVersion() {
 
   # java -version on java8 says 1.8.x
   # but on 9 and 10 it's 9.x.y and 10.x.y.
-  if [[ "$str" =~ ^1\.([0-9]+)\..*$ ]]; then
+  if [[ "$str" =~ ^1\.([0-9]+)(\..*)?$ ]]; then
     echo "${BASH_REMATCH[1]}"
-  elif [[ "$str" =~ ^([0-9]+)\..*$ ]]; then
+  # Fixes https://github.com/dwijnand/sbt-extras/issues/326
+  elif [[ "$str" =~ ^([0-9]+)(\..*)?(-ea)?$ ]]; then
     echo "${BASH_REMATCH[1]}"
   elif [[ -n "$str" ]]; then
     echoerr "Can't parse java version from: $str"
@@ -178,8 +227,8 @@ getJavaVersion() {
 checkJava() {
   # Warn if there is a Java version mismatch between PATH and JAVA_HOME/JDK_HOME
 
-  [[ -n "$JAVA_HOME" && -e "$JAVA_HOME/bin/java"     ]] && java="$JAVA_HOME/bin/java"
-  [[ -n "$JDK_HOME"  && -e "$JDK_HOME/lib/tools.jar" ]] && java="$JDK_HOME/bin/java"
+  [[ -n "$JAVA_HOME" && -e "$JAVA_HOME/bin/java"    ]] && java="$JAVA_HOME/bin/java"
+  [[ -n "$JDK_HOME" && -e "$JDK_HOME/lib/tools.jar" ]] && java="$JDK_HOME/bin/java"
 
   if [[ -n "$java" ]]; then
     pathJavaVersion=$(getJavaVersion java)
@@ -193,31 +242,34 @@ checkJava() {
   fi
 }
 
-java_version () {
+java_version() {
   local -r version=$(getJavaVersion "$java_cmd")
   vlog "Detected Java version: $version"
   echo "$version"
 }
 
+is_apple_silicon() { [[ "$(uname -s)" == "Darwin" && "$(uname -m)" == "arm64" ]]; }
+
 # MaxPermSize critical on pre-8 JVMs but incurs noisy warning on 8+
-default_jvm_opts () {
+default_jvm_opts() {
   local -r v="$(java_version)"
-  if [[ $v -ge 8 ]]; then
+  if [[ $v -ge 17 ]]; then
+    echo "$default_jvm_opts_common"
+  elif [[ $v -ge 10 ]]; then
+    if is_apple_silicon; then
+      # As of Dec 2020, JVM for Apple Silicon (M1) doesn't support JVMCI
+      echo "$default_jvm_opts_common"
+    else
+      echo "$default_jvm_opts_common -XX:+UnlockExperimentalVMOptions -XX:+UseJVMCICompiler"
+    fi
+  elif [[ $v -ge 8 ]]; then
     echo "$default_jvm_opts_common"
   else
     echo "-XX:MaxPermSize=384m $default_jvm_opts_common"
   fi
 }
 
-build_props_scala () {
-  if [[ -r "$buildProps" ]]; then
-    versionLine="$(grep '^build.scala.versions' "$buildProps")"
-    versionString="${versionLine##build.scala.versions=}"
-    echo "${versionString%% .*}"
-  fi
-}
-
-execRunner () {
+execRunner() {
   # print the arguments one to a line, quoting any containing spaces
   vlog "# Executing command line:" && {
     for arg; do
@@ -235,40 +287,36 @@ execRunner () {
   setTrapExit
 
   if [[ -n "$batch" ]]; then
-    "$@" < /dev/null
+    "$@" </dev/null
   else
     "$@"
   fi
 }
 
-jar_url ()  { make_url "$1"; }
+jar_url() { make_url "$1"; }
 
-is_cygwin () { [[ "$(uname -a)" == "CYGWIN"* ]]; }
+is_cygwin() { [[ "$(uname -a)" == "CYGWIN"* ]]; }
 
-jar_file () {
-  is_cygwin \
-  && cygpath -w "$sbt_launch_dir/$1/sbt-launch.jar" \
-  || echo "$sbt_launch_dir/$1/sbt-launch.jar"
+jar_file() {
+  is_cygwin &&
+    cygpath -w "$sbt_launch_dir/$1/sbt-launch.jar" ||
+    echo "$sbt_launch_dir/$1/sbt-launch.jar"
 }
 
-download_url () {
+download_url() {
   local url="$1"
   local jar="$2"
 
-  echoerr "Downloading sbt launcher for $sbt_version:"
-  echoerr "  From  $url"
-  echoerr "    To  $jar"
-
   mkdir -p "${jar%/*}" && {
-    if command -v curl > /dev/null 2>&1; then
+    if command -v curl >/dev/null 2>&1; then
       curl --fail --silent --location "$url" --output "$jar"
-    elif command -v wget > /dev/null 2>&1; then
+    elif command -v wget >/dev/null 2>&1; then
       wget -q -O "$jar" "$url"
     fi
   } && [[ -r "$jar" ]]
 }
 
-acquire_sbt_jar () {
+acquire_sbt_jar() {
   {
     sbt_jar="$(jar_file "$sbt_version")"
     [[ -r "$sbt_jar" ]]
@@ -277,11 +325,66 @@ acquire_sbt_jar () {
     [[ -r "$sbt_jar" ]]
   } || {
     sbt_jar="$(jar_file "$sbt_version")"
-    download_url "$(make_url "$sbt_version")" "$sbt_jar"
+    jar_url="$(make_url "$sbt_version")"
+
+    echoerr "Downloading sbt launcher for ${sbt_version}:"
+    echoerr "  From  ${jar_url}"
+    echoerr "    To  ${sbt_jar}"
+
+    download_url "${jar_url}" "${sbt_jar}"
+
+    case "${sbt_version}" in
+      0.*)
+        vlog "SBT versions < 1.0 do not have published MD5 checksums, skipping check"
+        echo ""
+        ;;
+      *)   verify_sbt_jar "${sbt_jar}" ;;
+    esac
   }
 }
 
-usage () {
+verify_sbt_jar() {
+  local jar="${1}"
+  local md5="${jar}.md5"
+  md5url="$(make_url "${sbt_version}").md5"
+
+  echoerr "Downloading sbt launcher ${sbt_version} md5 hash:"
+  echoerr "  From  ${md5url}"
+  echoerr "    To  ${md5}"
+
+  download_url "${md5url}" "${md5}" >/dev/null 2>&1
+
+  if command -v md5sum >/dev/null 2>&1; then
+    if echo "$(cat "${md5}")  ${jar}" | md5sum -c -; then
+      rm -rf "${md5}"
+      return 0
+    else
+      echoerr "Checksum does not match"
+      return 1
+    fi
+  elif command -v md5 >/dev/null 2>&1; then
+    if [ "$(md5 -q "${jar}")" == "$(cat "${md5}")" ]; then
+      rm -rf "${md5}"
+      return 0
+    else
+      echoerr "Checksum does not match"
+      return 1
+    fi
+  elif command -v openssl >/dev/null 2>&1; then
+    if [ "$(openssl md5 -r "${jar}" | awk '{print $1}')" == "$(cat "${md5}")" ]; then
+      rm -rf "${md5}"
+      return 0
+    else
+      echoerr "Checksum does not match"
+      return 1
+    fi
+  else
+    echoerr "Could not find an MD5 command"
+    return 1
+  fi
+}
+
+usage() {
   set_sbt_version
   cat <<EOM
 Usage: $script_name [options]
@@ -291,12 +394,6 @@ options to this runner use a single dash. Any sbt command can be scheduled
 to run first by prefixing the command with --, so --warn, --error and so on
 are not special.
 
-Output filtering: if there is a file in the home directory called .sbtignore
-and this is not an interactive sbt session, the file is treated as a list of
-bash regular expressions. Output lines which match any regex are not echoed.
-One can see exactly which lines would have been suppressed by starting this
-runner with the -x option.
-
   -h | -help         print this message
   -v                 verbose operation (this runner is chattier)
   -d, -w, -q         aliases for --debug, --warn, --error (q means quiet)
@@ -316,48 +413,55 @@ runner with the -x option.
   -script <file>     Run the specified file as a scala script
 
   # sbt version (default: sbt.version from $buildProps if present, otherwise $sbt_release_version)
-  -sbt-force-latest         force the use of the latest release of sbt: $sbt_release_version
-  -sbt-version  <version>   use the specified version of sbt (default: $sbt_release_version)
-  -sbt-dev                  use the latest pre-release version of sbt: $sbt_unreleased_version
-  -sbt-jar      <path>      use the specified jar as the sbt launcher
-  -sbt-launch-dir <path>    directory to hold sbt launchers (default: $sbt_launch_dir)
-  -sbt-launch-repo <url>    repo url for downloading sbt launcher jar (default: $(url_base "$sbt_version"))
+  -sbt-version <version>  use the specified version of sbt (default: $sbt_release_version)
+  -sbt-force-latest       force the use of the latest release of sbt: $sbt_release_version
+  -sbt-dev                use the latest pre-release version of sbt: $sbt_unreleased_version
+  -sbt-jar      <path>    use the specified jar as the sbt launcher
+  -sbt-launch-dir <path>  directory to hold sbt launchers (default: $sbt_launch_dir)
+  -sbt-launch-repo <url>  repo url for downloading sbt launcher jar (default: $(url_base "$sbt_version"))
 
   # scala version (default: as chosen by sbt)
-  -28                       use $latest_28
-  -29                       use $latest_29
-  -210                      use $latest_210
-  -211                      use $latest_211
-  -212                      use $latest_212
-  -213                      use $latest_213
-  -scala-home <path>        use the scala build at the specified directory
-  -scala-version <version>  use the specified version of scala
-  -binary-version <version> use the specified scala version when searching for dependencies
+  -28                        use $latest_28
+  -29                        use $latest_29
+  -210                       use $latest_210
+  -211                       use $latest_211
+  -212                       use $latest_212
+  -213                       use $latest_213
+  -scala-home <path>         use the scala build at the specified directory
+  -scala-version <version>   use the specified version of scala
+  -binary-version <version>  use the specified scala version when searching for dependencies
 
   # java version (default: java from PATH, currently $(java -version 2>&1 | grep version))
-  -java-home <path>         alternate JAVA_HOME
+  -java-home <path>          alternate JAVA_HOME
 
   # passing options to the jvm - note it does NOT use JAVA_OPTS due to pollution
   # The default set is used if JVM_OPTS is unset and no -jvm-opts file is found
-  <default>        $(default_jvm_opts)
-  JVM_OPTS         environment variable holding either the jvm args directly, or
-                   the reference to a file containing jvm args if given path is prepended by '@' (e.g. '@/etc/jvmopts')
-                   Note: "@"-file is overridden by local '.jvmopts' or '-jvm-opts' argument.
-  -jvm-opts <path> file containing jvm args (if not given, .jvmopts in project root is used if present)
-  -Dkey=val        pass -Dkey=val directly to the jvm
-  -J-X             pass option -X directly to the jvm (-J is stripped)
+  <default>         $(default_jvm_opts)
+  JVM_OPTS          environment variable holding either the jvm args directly, or
+                    the reference to a file containing jvm args if given path is prepended by '@' (e.g. '@/etc/jvmopts')
+                    Note: "@"-file is overridden by local '.jvmopts' or '-jvm-opts' argument.
+  -jvm-opts <path>  file containing jvm args (if not given, .jvmopts in project root is used if present)
+  -Dkey=val         pass -Dkey=val directly to the jvm
+  -J-X              pass option -X directly to the jvm (-J is stripped)
 
   # passing options to sbt, OR to this runner
-  SBT_OPTS         environment variable holding either the sbt args directly, or
-                   the reference to a file containing sbt args if given path is prepended by '@' (e.g. '@/etc/sbtopts')
-                   Note: "@"-file is overridden by local '.sbtopts' or '-sbt-opts' argument.
-  -sbt-opts <path> file containing sbt args (if not given, .sbtopts in project root is used if present)
-  -S-X             add -X to sbt's scalacOptions (-S is stripped)
+  SBT_OPTS          environment variable holding either the sbt args directly, or
+                    the reference to a file containing sbt args if given path is prepended by '@' (e.g. '@/etc/sbtopts')
+                    Note: "@"-file is overridden by local '.sbtopts' or '-sbt-opts' argument.
+  -sbt-opts <path>  file containing sbt args (if not given, .sbtopts in project root is used if present)
+  -S-X              add -X to sbt's scalacOptions (-S is stripped)
+
+  # passing options exclusively to this runner
+  SBTX_OPTS         environment variable holding either the sbt-extras args directly, or
+                    the reference to a file containing sbt-extras args if given path is prepended by '@' (e.g. '@/etc/sbtxopts')
+                    Note: "@"-file is overridden by local '.sbtxopts' or '-sbtx-opts' argument.
+  -sbtx-opts <path> file containing sbt-extras args (if not given, .sbtxopts in project root is used if present)
 EOM
+  exit 0
 }
 
-process_args () {
-  require_arg () {
+process_args() {
+  require_arg() {
     local type="$1"
     local opt="$2"
     local arg="$3"
@@ -368,50 +472,56 @@ process_args () {
   }
   while [[ $# -gt 0 ]]; do
     case "$1" in
-          -h|-help) usage; exit 0 ;;
-                -v) verbose=true && shift ;;
-                -d) addSbt "--debug" && shift ;;
-                -w) addSbt "--warn"  && shift ;;
-                -q) addSbt "--error" && shift ;;
-                -x) debugUs=true && shift ;;
-            -trace) require_arg integer "$1" "$2" && trace_level="$2" && shift 2 ;;
-              -ivy) require_arg path "$1" "$2" && addJava "-Dsbt.ivy.home=$2" && shift 2 ;;
-        -no-colors) addJava "-Dsbt.log.noformat=true" && shift ;;
-         -no-share) noshare=true && shift ;;
-         -sbt-boot) require_arg path "$1" "$2" && addJava "-Dsbt.boot.directory=$2" && shift 2 ;;
-          -sbt-dir) require_arg path "$1" "$2" && sbt_dir="$2" && shift 2 ;;
-        -debug-inc) addJava "-Dxsbt.inc.debug=true" && shift ;;
-          -offline) addSbt "set offline in Global := true" && shift ;;
-        -jvm-debug) require_arg port "$1" "$2" && addDebugger "$2" && shift 2 ;;
-            -batch) batch=true && shift ;;
-           -prompt) require_arg "expr" "$1" "$2" && setThisBuild shellPrompt "(s => { val e = Project.extract(s) ; $2 })" && shift 2 ;;
-           -script) require_arg file "$1" "$2" && sbt_script="$2" && addJava "-Dsbt.main.class=sbt.ScriptMain" && shift 2 ;;
-
-       -sbt-create) sbt_create=true && shift ;;
-          -sbt-jar) require_arg path "$1" "$2" && sbt_jar="$2" && shift 2 ;;
+      -h |   -help) usage ;;
+      -v)           verbose=true && shift ;;
+      -d)           addSbt "--debug" && shift ;;
+      -w)           addSbt "--warn"  && shift ;;
+      -q)           addSbt "--error" && shift ;;
+      -x)           shift ;; # currently unused
+      -trace)       require_arg integer "$1" "$2" && trace_level="$2" && shift 2 ;;
+      -debug-inc)   addJava "-Dxsbt.inc.debug=true" && shift ;;
+
+      -no-colors)   addJava "-Dsbt.log.noformat=true" && addJava "-Dsbt.color=false" && shift ;;
+      -sbt-create)  sbt_create=true && shift ;;
+      -sbt-dir)     require_arg path "$1" "$2" && sbt_dir="$2" && shift 2 ;;
+      -sbt-boot)    require_arg path "$1" "$2" && addJava "-Dsbt.boot.directory=$2" && shift 2 ;;
+      -ivy)         require_arg path "$1" "$2" && addJava "-Dsbt.ivy.home=$2" && shift 2 ;;
+      -no-share)    noshare=true && shift ;;
+      -offline)     addSbt "set offline in Global := true" && shift ;;
+      -jvm-debug)   require_arg port "$1" "$2" && addDebugger "$2" && shift 2 ;;
+      -batch)       batch=true && shift ;;
+      -prompt)      require_arg "expr" "$1" "$2" && setThisBuild shellPrompt "(s => { val e = Project.extract(s) ; $2 })" && shift 2 ;;
+      -script)      require_arg file "$1" "$2" && sbt_script="$2" && addJava "-Dsbt.main.class=sbt.ScriptMain" && shift 2 ;;
+
       -sbt-version) require_arg version "$1" "$2" && sbt_explicit_version="$2" && shift 2 ;;
- -sbt-force-latest) sbt_explicit_version="$sbt_release_version" && shift ;;
-          -sbt-dev) sbt_explicit_version="$sbt_unreleased_version" && shift ;;
-   -sbt-launch-dir) require_arg path "$1" "$2" && sbt_launch_dir="$2" && shift 2 ;;
-  -sbt-launch-repo) require_arg path "$1" "$2" && sbt_launch_repo="$2" && shift 2 ;;
-    -scala-version) require_arg version "$1" "$2" && setScalaVersion "$2" && shift 2 ;;
-   -binary-version) require_arg version "$1" "$2" && setThisBuild scalaBinaryVersion "\"$2\"" && shift 2 ;;
-       -scala-home) require_arg path "$1" "$2" && setThisBuild scalaHome "_root_.scala.Some(file(\"$2\"))" && shift 2 ;;
-        -java-home) require_arg path "$1" "$2" && setJavaHome "$2" && shift 2 ;;
-         -sbt-opts) require_arg path "$1" "$2" && sbt_opts_file="$2" && shift 2 ;;
-         -jvm-opts) require_arg path "$1" "$2" && jvm_opts_file="$2" && shift 2 ;;
-
-               -D*) addJava "$1" && shift ;;
-               -J*) addJava "${1:2}" && shift ;;
-               -S*) addScalac "${1:2}" && shift ;;
-               -28) setScalaVersion "$latest_28" && shift ;;
-               -29) setScalaVersion "$latest_29" && shift ;;
-              -210) setScalaVersion "$latest_210" && shift ;;
-              -211) setScalaVersion "$latest_211" && shift ;;
-              -212) setScalaVersion "$latest_212" && shift ;;
-              -213) setScalaVersion "$latest_213" && shift ;;
-               new) sbt_new=true && : ${sbt_explicit_version:=$sbt_release_version} && addResidual "$1" && shift ;;
-                 *) addResidual "$1" && shift ;;
+      -sbt-force-latest) sbt_explicit_version="$sbt_release_version" && shift ;;
+      -sbt-dev)     sbt_explicit_version="$sbt_unreleased_version" && shift ;;
+      -sbt-jar)     require_arg path "$1" "$2" && sbt_jar="$2" && shift 2 ;;
+      -sbt-launch-dir) require_arg path "$1" "$2" && sbt_launch_dir="$2" && shift 2 ;;
+      -sbt-launch-repo) require_arg path "$1" "$2" && sbt_launch_repo="$2" && shift 2 ;;
+
+      -28)          setScalaVersion "$latest_28"  && shift ;;
+      -29)          setScalaVersion "$latest_29"  && shift ;;
+      -210)         setScalaVersion "$latest_210" && shift ;;
+      -211)         setScalaVersion "$latest_211" && shift ;;
+      -212)         setScalaVersion "$latest_212" && shift ;;
+      -213)         setScalaVersion "$latest_213" && shift ;;
+
+      -scala-version) require_arg version "$1" "$2" && setScalaVersion "$2" && shift 2 ;;
+      -binary-version) require_arg version "$1" "$2" && setThisBuild scalaBinaryVersion "\"$2\"" && shift 2 ;;
+      -scala-home)  require_arg path "$1" "$2" && setThisBuild scalaHome "_root_.scala.Some(file(\"$2\"))" && shift 2 ;;
+      -java-home)   require_arg path "$1" "$2" && setJavaHome "$2" && shift 2 ;;
+      -sbt-opts)    require_arg path "$1" "$2" && sbt_opts_file="$2" && shift 2 ;;
+      -sbtx-opts) require_arg path "$1" "$2" && sbtx_opts_file="$2" && shift 2 ;;
+      -jvm-opts)    require_arg path "$1" "$2" && jvm_opts_file="$2" && shift 2 ;;
+
+      -D*)          addJava "$1" && shift ;;
+      -J*)          addJava "${1:2}" && shift ;;
+      -S*)          addScalac "${1:2}" && shift ;;
+
+      new)          sbt_new=true && : ${sbt_explicit_version:=$sbt_release_version} && addResidual "$1" && shift ;;
+
+      *)            addResidual "$1" && shift ;;
     esac
   done
 }
@@ -425,7 +535,7 @@ readConfigFile() {
   until $end; do
     read -r || end=true
     [[ $REPLY =~ ^# ]] || [[ -z $REPLY ]] || echo "$REPLY"
-  done < "$1"
+  done <"$1"
 }
 
 # if there are file/environment sbt_opts, process again so we
@@ -435,7 +545,19 @@ if [[ -r "$sbt_opts_file" ]]; then
   while read -r opt; do extra_sbt_opts+=("$opt"); done < <(readConfigFile "$sbt_opts_file")
 elif [[ -n "$SBT_OPTS" && ! ("$SBT_OPTS" =~ ^@.*) ]]; then
   vlog "Using sbt options defined in variable \$SBT_OPTS"
-  IFS=" " read -r -a extra_sbt_opts <<< "$SBT_OPTS"
+  IFS=" " read -r -a extra_sbt_opts <<<"$SBT_OPTS"
+else
+  vlog "No extra sbt options have been defined"
+fi
+
+# if there are file/environment sbtx_opts, process again so we
+# can supply args to this runner
+if [[ -r "$sbtx_opts_file" ]]; then
+  vlog "Using sbt options defined in file $sbtx_opts_file"
+  while read -r opt; do extra_sbt_opts+=("$opt"); done < <(readConfigFile "$sbtx_opts_file")
+elif [[ -n "$SBTX_OPTS" && ! ("$SBTX_OPTS" =~ ^@.*) ]]; then
+  vlog "Using sbt options defined in variable \$SBTX_OPTS"
+  IFS=" " read -r -a extra_sbt_opts <<<"$SBTX_OPTS"
 else
   vlog "No extra sbt options have been defined"
 fi
@@ -454,8 +576,8 @@ checkJava
 # only exists in 0.12+
 setTraceLevel() {
   case "$sbt_version" in
-    "0.7."* | "0.10."* | "0.11."* ) echoerr "Cannot set trace level in sbt version $sbt_version" ;;
-                                 *) setThisBuild traceLevel "$trace_level" ;;
+    "0.7."* | "0.10."* | "0.11."*) echoerr "Cannot set trace level in sbt version $sbt_version" ;;
+    *)                             setThisBuild traceLevel "$trace_level" ;;
   esac
 }
 
@@ -466,12 +588,12 @@ setTraceLevel() {
 vlog "Detected sbt version $sbt_version"
 
 if [[ -n "$sbt_script" ]]; then
-  residual_args=( "$sbt_script" "${residual_args[@]}" )
+  residual_args=("$sbt_script" "${residual_args[@]}")
 else
   # no args - alert them there's stuff in here
-  (( argumentCount > 0 )) || {
+  ((argumentCount > 0)) || {
     vlog "Starting $script_name: invoke with -help for other options"
-    residual_args=( shell )
+    residual_args=(shell)
   }
 fi
 
@@ -497,7 +619,7 @@ EOM
 # no jar? download it.
 [[ -r "$sbt_jar" ]] || acquire_sbt_jar || {
   # still no jar? uh-oh.
-  echo "Download failed. Obtain the jar manually and place it at $sbt_jar"
+  echo "Could not download and verify the launcher. Obtain the jar manually and place it at $sbt_jar"
   exit 1
 }
 
@@ -507,12 +629,12 @@ if [[ -n "$noshare" ]]; then
   done
 else
   case "$sbt_version" in
-    "0.7."* | "0.10."* | "0.11."* | "0.12."* )
+    "0.7."* | "0.10."* | "0.11."* | "0.12."*)
       [[ -n "$sbt_dir" ]] || {
         sbt_dir="$HOME/.sbt/$sbt_version"
         vlog "Using $sbt_dir as sbt dir, -sbt-dir to override."
       }
-    ;;
+      ;;
   esac
 
   if [[ -n "$sbt_dir" ]]; then
@@ -525,54 +647,18 @@ if [[ -r "$jvm_opts_file" ]]; then
   while read -r opt; do extra_jvm_opts+=("$opt"); done < <(readConfigFile "$jvm_opts_file")
 elif [[ -n "$JVM_OPTS" && ! ("$JVM_OPTS" =~ ^@.*) ]]; then
   vlog "Using jvm options defined in \$JVM_OPTS variable"
-  IFS=" " read -r -a extra_jvm_opts <<< "$JVM_OPTS"
+  IFS=" " read -r -a extra_jvm_opts <<<"$JVM_OPTS"
 else
   vlog "Using default jvm options"
-  IFS=" " read -r -a extra_jvm_opts <<< "$(default_jvm_opts)"
+  IFS=" " read -r -a extra_jvm_opts <<<"$( default_jvm_opts)"
 fi
 
 # traceLevel is 0.12+
 [[ -n "$trace_level" ]] && setTraceLevel
 
-main () {
-  execRunner "$java_cmd" \
-    "${extra_jvm_opts[@]}" \
-    "${java_args[@]}" \
-    -jar "$sbt_jar" \
-    "${sbt_commands[@]}" \
-    "${residual_args[@]}"
-}
-
-# sbt inserts this string on certain lines when formatting is enabled:
-#   val OverwriteLine = "\r\u001BM\u001B[2K"
-# ...in order not to spam the console with a million "Resolving" lines.
-# Unfortunately that makes it that much harder to work with when
-# we're not going to print those lines anyway. We strip that bit of
-# line noise, but leave the other codes to preserve color.
-mainFiltered () {
-  local -r excludeRegex=$(grep -E -v '^#|^$' ~/.sbtignore | paste -sd'|' -)
-
-  echoLine () {
-    local -r line="$1"
-    local -r line1="${line//\r\x1BM\x1B\[2K//g}"       # This strips the OverwriteLine code.
-    local -r line2="${line1//\x1B\[[0-9;]*[JKmsu]//g}" # This strips all codes - we test regexes against this.
-
-    if [[ $line2 =~ $excludeRegex ]]; then
-      [[ -n $debugUs ]] && echo "[X] $line1"
-    else
-      [[ -n $debugUs ]] && echo "    $line1" || echo "$line1"
-    fi
-  }
-
-  echoLine "Starting sbt with output filtering enabled."
-  main | while read -r line; do echoLine "$line"; done
-}
-
-# Only filter if there's a filter file and we don't see a known interactive command.
-# Obviously this is super ad hoc but I don't know how to improve on it. Testing whether
-# stdin is a terminal is useless because most of my use cases for this filtering are
-# exactly when I'm at a terminal, running sbt non-interactively.
-shouldFilter () { [[ -f ~/.sbtignore ]] && ! grep -E -q '\b(shell|console|consoleProject)\b' <<<"${residual_args[@]}"; }
-
-# run sbt
-if shouldFilter; then mainFiltered; else main; fi
+execRunner "$java_cmd" \
+  "${extra_jvm_opts[@]}" \
+  "${java_args[@]}" \
+  -jar "$sbt_jar" \
+  "${sbt_commands[@]}" \
+  "${residual_args[@]}"
diff --git a/typed-akka-examples/scala/hello/src/test/scala/com/github/daggerok/akka/typed/MainSpec.scala b/typed-akka-examples/scala/hello/src/test/scala/com/github/daggerok/akka/typed/MainSpec.scala
index b4894f6..d917c6e 100644
--- a/typed-akka-examples/scala/hello/src/test/scala/com/github/daggerok/akka/typed/MainSpec.scala
+++ b/typed-akka-examples/scala/hello/src/test/scala/com/github/daggerok/akka/typed/MainSpec.scala
@@ -13,9 +13,7 @@ class MainSpec(_system: ActorSystem)
   with Matchers
   with AnyWordSpecLike
   with BeforeAndAfterAll {
-
   def this() = this(ActorSystem("TypedAkkaSpec"))
-
   override def afterAll: Unit = {
     shutdown(system)
   }

From 395bdb1b76551407fc061444c1f91fc8c3e492c2 Mon Sep 17 00:00:00 2001
From: Maksim Kostromin <maksim@beachfront.com>
Date: Tue, 8 Aug 2023 09:32:07 -0400
Subject: [PATCH 2/4] Add java versions matrix.

---
 .github/workflows/ci.yml | 110 +++++++++++++++++++++++++++++++++++++++
 .travis.yml              |  17 ------
 2 files changed, 110 insertions(+), 17 deletions(-)
 create mode 100644 .github/workflows/ci.yml

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..ab5dc03
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,110 @@
+name: ci
+on:
+  push:
+  workflow_dispatch:
+    inputs:
+      trigger:
+        description: Type m to trigger manual jobs
+        required: false
+        default: ''
+  pull_request:
+    branches: [ master ]
+jobs:
+  sbt:
+    if: github.event.inputs.trigger == ''
+      || !startsWith(github.event.inputs.trigger, 'm')
+      || !startsWith(github.event.inputs.trigger, 'M')
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        JAVA_VERSION: [ 8, 11 ]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
+        with:
+          # 'temurin' 'zulu' 'adopt' 'adopt-hotspot' 'adopt-openj9' 'liberica' 'microsoft'
+          distribution: 'temurin'
+          java-version: ${{ matrix.JAVA_VERSION }}
+      - uses: actions/cache@v3
+        with:
+          path: |
+            ~/.m2
+            ~/**/sbtw
+            ~/.docker
+          key: ${{ runner.os }}-build-${{ hashFiles('**/*.sbt', '**/pom.xml', '**/package.json', '**/package-lock.json') }}
+      #- run: command -v docker >/dev/null 2>&1 || { echo >&2 "Docker is required but not installed.  Aborting."; exit 1; }
+      - run: sudo apt install curl -qqy
+      - run: cd $GITHUB_WORKSPACE ; cd ./typed-akka-examples ; curl -Ls https://git.io/sbt > sbtw && chmod 0755 sbtw
+      - run: cd $GITHUB_WORKSPACE ; cd ./typed-akka-examples ; ./sbtw "project scalaHello" clean test package run
+  typed-akka-examples-java-hola-jdk-8:
+    needs: sbt
+    if: github.event.inputs.trigger == ''
+      || !startsWith(github.event.inputs.trigger, 'm')
+      || !startsWith(github.event.inputs.trigger, 'M')
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        JAVA_VERSION: [ 8, 11 ]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
+        with:
+          # 'temurin' 'zulu' 'adopt' 'adopt-hotspot' 'adopt-openj9' 'liberica' 'microsoft'
+          distribution: 'temurin'
+          java-version: ${{ matrix.JAVA_VERSION }}
+      - uses: actions/cache@v3
+        with:
+          path: |
+            ~/.m2
+            ~/**/sbtw
+            ~/.docker
+          key: ${{ runner.os }}-build-${{ hashFiles('**/*.sbt', '**/pom.xml', '**/package.json', '**/package-lock.json') }}
+      - run: cd $GITHUB_WORKSPACE ; cd ./typed-akka-examples ; ./sbtw "project javaHola" clean test package run
+  typed-akka-examples-java-hello-jdk-8:
+    needs: sbt
+    if: github.event.inputs.trigger == ''
+      || !startsWith(github.event.inputs.trigger, 'm')
+      || !startsWith(github.event.inputs.trigger, 'M')
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        JAVA_VERSION: [ 8, 11 ]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
+        with:
+          # 'temurin' 'zulu' 'adopt' 'adopt-hotspot' 'adopt-openj9' 'liberica' 'microsoft'
+          distribution: 'temurin'
+          java-version: ${{ matrix.JAVA_VERSION }}
+      - uses: actions/cache@v3
+        with:
+          path: |
+            ~/.m2
+            ~/**/sbtw
+            ~/.docker
+          key: ${{ runner.os }}-build-${{ hashFiles('**/*.sbt', '**/pom.xml', '**/package.json', '**/package-lock.json') }}
+      - run: cd $GITHUB_WORKSPACE ; cd ./typed-akka-examples ; ./sbtw "project javaHello" clean test package run
+  typed-akka-examples-scala-account-jdk-8:
+    needs: sbt
+    if: github.event.inputs.trigger == ''
+      || !startsWith(github.event.inputs.trigger, 'm')
+      || !startsWith(github.event.inputs.trigger, 'M')
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        JAVA_VERSION: [ 8, 11 ]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
+        with:
+          # 'temurin' 'zulu' 'adopt' 'adopt-hotspot' 'adopt-openj9' 'liberica' 'microsoft'
+          distribution: 'temurin'
+          java-version: ${{ matrix.JAVA_VERSION }}
+      - uses: actions/cache@v3
+        with:
+          path: |
+            ~/.m2
+            ~/**/sbtw
+            ~/.docker
+          key: ${{ runner.os }}-build-${{ hashFiles('**/*.sbt', '**/pom.xml', '**/package.json', '**/package-lock.json') }}
+      - run: cd $GITHUB_WORKSPACE ; cd ./typed-akka-examples ; ./sbtw "project scalaAccount" clean package run
diff --git a/.travis.yml b/.travis.yml
index 772fc0c..4720015 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -40,23 +40,6 @@ stages:
 jobs:
   include:
 
-#  - stage: test
-#    jdk: openjdk8
-#    name: test typed-akka-examples scalaAccount openjdk8
-#    script: cd $TRAVIS_BUILD_DIR/typed-akka-examples/ && ./sbtw "project scalaAccount" clean package run
-#  - stage: test
-#    jdk: openjdk8
-#    name: test typed-akka-examples javaHola openjdk8
-#    script: cd $TRAVIS_BUILD_DIR/typed-akka-examples/ && ./sbtw "project javaHola" clean test package run
-#  - stage: test
-#    jdk: openjdk8
-#    name: test typed-akka-examples javaHello openjdk8
-#    script: cd $TRAVIS_BUILD_DIR/typed-akka-examples/ && ./sbtw "project javaHello" clean test package run
-#  - stage: test
-#    jdk: openjdk8
-#    name: test typed-akka-examples scalaHello openjdk8
-#    script: cd $TRAVIS_BUILD_DIR/typed-akka-examples/ && ./sbtw "project scalaHello" clean test package run
-
 #    - stage: test
 #      jdk: openjdk8
 #      name: sbt run main-akka

From 30dfe06f6ddadbfb16d0db79a19b6f336accfd32 Mon Sep 17 00:00:00 2001
From: Maksim Kostromin <maksim@beachfront.com>
Date: Tue, 8 Aug 2023 09:50:33 -0400
Subject: [PATCH 3/4] Fix DRY code for github actions.

---
 .github/workflows/ci.yml | 39 +++++++++++++++++++++++++++++++--------
 1 file changed, 31 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ab5dc03..5f3d47a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,7 +10,7 @@ on:
   pull_request:
     branches: [ master ]
 jobs:
-  sbt:
+  setup-sbt:
     if: github.event.inputs.trigger == ''
       || !startsWith(github.event.inputs.trigger, 'm')
       || !startsWith(github.event.inputs.trigger, 'M')
@@ -34,10 +34,33 @@ jobs:
           key: ${{ runner.os }}-build-${{ hashFiles('**/*.sbt', '**/pom.xml', '**/package.json', '**/package-lock.json') }}
       #- run: command -v docker >/dev/null 2>&1 || { echo >&2 "Docker is required but not installed.  Aborting."; exit 1; }
       - run: sudo apt install curl -qqy
-      - run: cd $GITHUB_WORKSPACE ; cd ./typed-akka-examples ; curl -Ls https://git.io/sbt > sbtw && chmod 0755 sbtw
+      - run: mkdir -p /tmp/proj ; cd /tmp/proj/ ; curl -Ls https://git.io/sbt > sbtw ; chmod 0755 sbtw ; ./sbtw clean compile
+  typed-akka-examples-scala-hello:
+    needs: setup-sbt
+    if: github.event.inputs.trigger == ''
+      || !startsWith(github.event.inputs.trigger, 'm')
+      || !startsWith(github.event.inputs.trigger, 'M')
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        JAVA_VERSION: [ 8, 11 ]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
+        with:
+          # 'temurin' 'zulu' 'adopt' 'adopt-hotspot' 'adopt-openj9' 'liberica' 'microsoft'
+          distribution: 'temurin'
+          java-version: ${{ matrix.JAVA_VERSION }}
+      - uses: actions/cache@v3
+        with:
+          path: |
+            ~/.m2
+            ~/**/sbtw
+            ~/.docker
+          key: ${{ runner.os }}-build-${{ hashFiles('**/*.sbt', '**/pom.xml', '**/package.json', '**/package-lock.json') }}
       - run: cd $GITHUB_WORKSPACE ; cd ./typed-akka-examples ; ./sbtw "project scalaHello" clean test package run
-  typed-akka-examples-java-hola-jdk-8:
-    needs: sbt
+  typed-akka-examples-java-hola:
+    needs: setup-sbt
     if: github.event.inputs.trigger == ''
       || !startsWith(github.event.inputs.trigger, 'm')
       || !startsWith(github.event.inputs.trigger, 'M')
@@ -60,8 +83,8 @@ jobs:
             ~/.docker
           key: ${{ runner.os }}-build-${{ hashFiles('**/*.sbt', '**/pom.xml', '**/package.json', '**/package-lock.json') }}
       - run: cd $GITHUB_WORKSPACE ; cd ./typed-akka-examples ; ./sbtw "project javaHola" clean test package run
-  typed-akka-examples-java-hello-jdk-8:
-    needs: sbt
+  typed-akka-examples-java-hello:
+    needs: setup-sbt
     if: github.event.inputs.trigger == ''
       || !startsWith(github.event.inputs.trigger, 'm')
       || !startsWith(github.event.inputs.trigger, 'M')
@@ -84,8 +107,8 @@ jobs:
             ~/.docker
           key: ${{ runner.os }}-build-${{ hashFiles('**/*.sbt', '**/pom.xml', '**/package.json', '**/package-lock.json') }}
       - run: cd $GITHUB_WORKSPACE ; cd ./typed-akka-examples ; ./sbtw "project javaHello" clean test package run
-  typed-akka-examples-scala-account-jdk-8:
-    needs: sbt
+  typed-akka-examples-scala-account:
+    needs: setup-sbt
     if: github.event.inputs.trigger == ''
       || !startsWith(github.event.inputs.trigger, 'm')
       || !startsWith(github.event.inputs.trigger, 'M')

From ddf7c5b6c9a9f993e75fc66fee5165d0e29ca675 Mon Sep 17 00:00:00 2001
From: Maksim Kostromin <maksim@beachfront.com>
Date: Tue, 8 Aug 2023 10:19:45 -0400
Subject: [PATCH 4/4] Github actions for hello-world project.

---
 .github/workflows/{ci.yml => jdk-8.yml} |  52 +--
 .travis.yml                             |  54 +--
 README.md                               |   4 +-
 hello-world/project/build.properties    |   2 +-
 hello-world/sbtw                        | 502 ++++++++++++++----------
 5 files changed, 354 insertions(+), 260 deletions(-)
 rename .github/workflows/{ci.yml => jdk-8.yml} (76%)

diff --git a/.github/workflows/ci.yml b/.github/workflows/jdk-8.yml
similarity index 76%
rename from .github/workflows/ci.yml
rename to .github/workflows/jdk-8.yml
index 5f3d47a..ed91150 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/jdk-8.yml
@@ -1,4 +1,4 @@
-name: ci
+name: jdk-8
 on:
   push:
   workflow_dispatch:
@@ -9,22 +9,21 @@ on:
         default: ''
   pull_request:
     branches: [ master ]
+env:
+  JAVA_VERSION: 8
 jobs:
   setup-sbt:
     if: github.event.inputs.trigger == ''
       || !startsWith(github.event.inputs.trigger, 'm')
       || !startsWith(github.event.inputs.trigger, 'M')
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        JAVA_VERSION: [ 8, 11 ]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-java@v3
         with:
           # 'temurin' 'zulu' 'adopt' 'adopt-hotspot' 'adopt-openj9' 'liberica' 'microsoft'
           distribution: 'temurin'
-          java-version: ${{ matrix.JAVA_VERSION }}
+          java-version: ${{ env.JAVA_VERSION }}
       - uses: actions/cache@v3
         with:
           path: |
@@ -34,23 +33,20 @@ jobs:
           key: ${{ runner.os }}-build-${{ hashFiles('**/*.sbt', '**/pom.xml', '**/package.json', '**/package-lock.json') }}
       #- run: command -v docker >/dev/null 2>&1 || { echo >&2 "Docker is required but not installed.  Aborting."; exit 1; }
       - run: sudo apt install curl -qqy
-      - run: mkdir -p /tmp/proj ; cd /tmp/proj/ ; curl -Ls https://git.io/sbt > sbtw ; chmod 0755 sbtw ; ./sbtw clean compile
+      - run: mkdir -p /tmp/proj ; cd /tmp/proj/ ; touch build.sbt ; curl -Ls https://git.io/sbt > sbtw ; chmod 0755 sbtw ; ./sbtw clean compile
   typed-akka-examples-scala-hello:
     needs: setup-sbt
     if: github.event.inputs.trigger == ''
       || !startsWith(github.event.inputs.trigger, 'm')
       || !startsWith(github.event.inputs.trigger, 'M')
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        JAVA_VERSION: [ 8, 11 ]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-java@v3
         with:
           # 'temurin' 'zulu' 'adopt' 'adopt-hotspot' 'adopt-openj9' 'liberica' 'microsoft'
           distribution: 'temurin'
-          java-version: ${{ matrix.JAVA_VERSION }}
+          java-version: ${{ env.JAVA_VERSION }}
       - uses: actions/cache@v3
         with:
           path: |
@@ -65,16 +61,13 @@ jobs:
       || !startsWith(github.event.inputs.trigger, 'm')
       || !startsWith(github.event.inputs.trigger, 'M')
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        JAVA_VERSION: [ 8, 11 ]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-java@v3
         with:
           # 'temurin' 'zulu' 'adopt' 'adopt-hotspot' 'adopt-openj9' 'liberica' 'microsoft'
           distribution: 'temurin'
-          java-version: ${{ matrix.JAVA_VERSION }}
+          java-version: ${{ env.JAVA_VERSION }}
       - uses: actions/cache@v3
         with:
           path: |
@@ -89,16 +82,13 @@ jobs:
       || !startsWith(github.event.inputs.trigger, 'm')
       || !startsWith(github.event.inputs.trigger, 'M')
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        JAVA_VERSION: [ 8, 11 ]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-java@v3
         with:
           # 'temurin' 'zulu' 'adopt' 'adopt-hotspot' 'adopt-openj9' 'liberica' 'microsoft'
           distribution: 'temurin'
-          java-version: ${{ matrix.JAVA_VERSION }}
+          java-version: ${{ env.JAVA_VERSION }}
       - uses: actions/cache@v3
         with:
           path: |
@@ -113,16 +103,13 @@ jobs:
       || !startsWith(github.event.inputs.trigger, 'm')
       || !startsWith(github.event.inputs.trigger, 'M')
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        JAVA_VERSION: [ 8, 11 ]
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-java@v3
         with:
           # 'temurin' 'zulu' 'adopt' 'adopt-hotspot' 'adopt-openj9' 'liberica' 'microsoft'
           distribution: 'temurin'
-          java-version: ${{ matrix.JAVA_VERSION }}
+          java-version: ${{ env.JAVA_VERSION }}
       - uses: actions/cache@v3
         with:
           path: |
@@ -131,3 +118,24 @@ jobs:
             ~/.docker
           key: ${{ runner.os }}-build-${{ hashFiles('**/*.sbt', '**/pom.xml', '**/package.json', '**/package-lock.json') }}
       - run: cd $GITHUB_WORKSPACE ; cd ./typed-akka-examples ; ./sbtw "project scalaAccount" clean package run
+  hello-world:
+    if: github.event.inputs.trigger == ''
+      || !startsWith(github.event.inputs.trigger, 'm')
+      || !startsWith(github.event.inputs.trigger, 'M')
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
+        with:
+          # 'temurin' 'zulu' 'adopt' 'adopt-hotspot' 'adopt-openj9' 'liberica' 'microsoft'
+          distribution: 'temurin'
+          java-version: ${{ env.JAVA_VERSION }}
+      - uses: actions/cache@v3
+        with:
+          path: |
+            ~/.m2
+            ~/**/sbtw
+            ~/.docker
+          key: ${{ runner.os }}-build-${{ hashFiles('**/*.sbt', '**/pom.xml', '**/package.json', '**/package-lock.json') }}
+      - run: cd $GITHUB_WORKSPACE/hello-world/ ; curl -Ls https://git.io/sbt > sbtw ; chmod 0755 sbtw
+      - run: cd $GITHUB_WORKSPACE/hello-world/ ; ./sbtw clean compile test package run
diff --git a/.travis.yml b/.travis.yml
index 4720015..5d4a1db 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -84,33 +84,33 @@ jobs:
     jdk: openjdk11
     name: sbt run main-akka openjdk11
     script: cd $TRAVIS_BUILD_DIR/main-akka/ && ./sbtw clean run
-  - stage: test
-    jdk: openjdk11
-    name: test sbt wrapper openjdk11
-    script:
-    - mkdir $TRAVIS_BUILD_DIR/test
-    - cd $TRAVIS_BUILD_DIR/test/
-    - bash $TRAVIS_BUILD_DIR/wrapper/sbt-wrapper
-    - mkdir -p src/main/scala project
-    - echo 'object Main extends App { println("Hello") }' > src/main/scala/Main.scala
-    - echo 'sbt.version=1.2.8' > project/build.properties
-    - ./sbtw compile
-    - ./sbtw clean run
-  - stage: test
-    jdk: openjdk11
-    name: test sbt wrapper openjdk11
-    script:
-    - cd $TRAVIS_BUILD_DIR/hello-world/
-    - ./sbtw package
-    - ./sbtw test
-    - ./sbtw run
-  - stage: test
-    jdk: openjdk11
-    name: test idea sbt project openjdk11
-    script:
-    - cd $TRAVIS_BUILD_DIR/hello-world/
-    - ./sbtw test
-    - ./sbtw run
+#  - stage: test
+#    jdk: openjdk11
+#    name: test sbt wrapper openjdk11
+#    script:
+#    - mkdir $TRAVIS_BUILD_DIR/test
+#    - cd $TRAVIS_BUILD_DIR/test/
+#    - bash $TRAVIS_BUILD_DIR/wrapper/sbt-wrapper
+#    - mkdir -p src/main/scala project
+#    - echo 'object Main extends App { println("Hello") }' > src/main/scala/Main.scala
+#    - echo 'sbt.version=1.2.8' > project/build.properties
+#    - ./sbtw compile
+#    - ./sbtw clean run
+#  - stage: test
+#    jdk: openjdk11
+#    name: test sbt wrapper openjdk11
+#    script:
+#    - cd $TRAVIS_BUILD_DIR/hello-world/
+#    - ./sbtw package
+#    - ./sbtw test
+#    - ./sbtw run
+#  - stage: test
+#    jdk: openjdk11
+#    name: test idea sbt project openjdk11
+#    script:
+#    - cd $TRAVIS_BUILD_DIR/hello-world/
+#    - ./sbtw test
+#    - ./sbtw run
   #
   - stage: test
     jdk: openjdk11
diff --git a/README.md b/README.md
index 423ea2f..ce6f89b 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
-# sbt-examples
-Read documentation [here](https://daggerok.github.io/sbt-examples/) and learn baby, learn... GitHub Travis CI build status: [![Build Status](https://travis-ci.org/daggerok/sbt-examples.svg?branch=master)](https://travis-ci.org/daggerok/sbt-examples)
+# sbt-examples [![ci](https://github.com/daggerok/sbt-examples/actions/workflows/jdk-8.yml/badge.svg)](https://github.com/daggerok/sbt-examples/actions/workflows/jdk-8.yml)
+Read documentation [here](https://daggerok.github.io/sbt-examples/) and learn baby, learn...
 
 _table content in a reverse order_
 
diff --git a/hello-world/project/build.properties b/hello-world/project/build.properties
index c0bab04..52413ab 100644
--- a/hello-world/project/build.properties
+++ b/hello-world/project/build.properties
@@ -1 +1 @@
-sbt.version=1.2.8
+sbt.version=1.9.3
diff --git a/hello-world/sbtw b/hello-world/sbtw
index 5475171..629896f 100755
--- a/hello-world/sbtw
+++ b/hello-world/sbtw
@@ -3,14 +3,42 @@
 # A more capable sbt runner, coincidentally also called sbt.
 # Author: Paul Phillips <paulp@improving.org>
 # https://github.com/paulp/sbt-extras
+#
+# Generated from http://www.opensource.org/licenses/bsd-license.php
+# Copyright (c) 2011, Paul Phillips. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#     * Neither the name of the author nor the names of its contributors
+# may be used to endorse or promote products derived from this software
+# without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+# TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 set -o pipefail
 
-declare -r sbt_release_version="1.2.8"
-declare -r sbt_unreleased_version="1.3.0-RC1"
+declare -r sbt_release_version="1.9.3"
+declare -r sbt_unreleased_version="1.9.3"
 
-declare -r latest_213="2.13.0"
-declare -r latest_212="2.12.8"
+declare -r latest_213="2.13.11"
+declare -r latest_212="2.12.18"
 declare -r latest_211="2.11.12"
 declare -r latest_210="2.10.7"
 declare -r latest_29="2.9.3"
@@ -18,18 +46,17 @@ declare -r latest_28="2.8.2"
 
 declare -r buildProps="project/build.properties"
 
-declare -r sbt_launch_ivy_release_repo="http://repo.typesafe.com/typesafe/ivy-releases"
+declare -r sbt_launch_ivy_release_repo="https://repo.typesafe.com/typesafe/ivy-releases"
 declare -r sbt_launch_ivy_snapshot_repo="https://repo.scala-sbt.org/scalasbt/ivy-snapshots"
-declare -r sbt_launch_mvn_release_repo="http://repo.scala-sbt.org/scalasbt/maven-releases"
-declare -r sbt_launch_mvn_snapshot_repo="http://repo.scala-sbt.org/scalasbt/maven-snapshots"
+declare -r sbt_launch_mvn_release_repo="https://repo1.maven.org/maven2"
+declare -r sbt_launch_mvn_snapshot_repo="https://repo.scala-sbt.org/scalasbt/maven-snapshots"
 
-declare -r default_jvm_opts_common="-Xms512m -Xss2m"
-declare -r noshare_opts="-Dsbt.global.base=project/.sbtboot -Dsbt.boot.directory=project/.boot -Dsbt.ivy.home=project/.ivy"
+declare -r default_jvm_opts_common="-Xms512m -Xss2m -XX:MaxInlineLevel=18"
+declare -r noshare_opts="-Dsbt.global.base=project/.sbtboot -Dsbt.boot.directory=project/.boot -Dsbt.ivy.home=project/.ivy -Dsbt.coursier.home=project/.coursier"
 
 declare sbt_jar sbt_dir sbt_create sbt_version sbt_script sbt_new
 declare sbt_explicit_version
 declare verbose noshare batch trace_level
-declare debugUs
 
 declare java_cmd="java"
 declare sbt_launch_dir="$HOME/.sbt/launchers"
@@ -41,11 +68,14 @@ declare -a java_args scalac_args sbt_commands residual_args
 # args to jvm/sbt via files or environment variables
 declare -a extra_jvm_opts extra_sbt_opts
 
-echoerr () { echo >&2 "$@"; }
-vlog ()    { [[ -n "$verbose" ]] && echoerr "$@"; }
-die ()     { echo "Aborting: $*" ; exit 1; }
+echoerr() { echo >&2 "$@"; }
+vlog()    { [[ -n "$verbose" ]] && echoerr "$@"; }
+die()     {
+  echo "Aborting: $*"
+  exit 1
+}
 
-setTrapExit () {
+setTrapExit() {
   # save stty and trap exit, to ensure echo is re-enabled if we are interrupted.
   SBT_STTY="$(stty -g 2>/dev/null)"
   export SBT_STTY
@@ -64,9 +94,12 @@ setTrapExit () {
 
 # this seems to cover the bases on OSX, and someone will
 # have to tell me about the others.
-get_script_path () {
+get_script_path() {
   local path="$1"
-  [[ -L "$path" ]] || { echo "$path" ; return; }
+  [[ -L "$path" ]] || {
+    echo "$path"
+    return
+  }
 
   local -r target="$(readlink "$path")"
   if [[ "${target:0:1}" == "/" ]]; then
@@ -81,7 +114,7 @@ declare -r script_path
 script_name="${script_path##*/}"
 declare -r script_name
 
-init_default_option_file () {
+init_default_option_file() {
   local overriding_var="${!1}"
   local default_file="$2"
   if [[ ! -r "$default_file" && "$overriding_var" =~ ^@(.*)$ ]]; then
@@ -94,66 +127,81 @@ init_default_option_file () {
 }
 
 sbt_opts_file="$(init_default_option_file SBT_OPTS .sbtopts)"
+sbtx_opts_file="$(init_default_option_file SBTX_OPTS .sbtxopts)"
 jvm_opts_file="$(init_default_option_file JVM_OPTS .jvmopts)"
 
-build_props_sbt () {
-  [[ -r "$buildProps" ]] && \
+build_props_sbt() {
+  [[ -r "$buildProps" ]] &&
     grep '^sbt\.version' "$buildProps" | tr '=\r' ' ' | awk '{ print $2; }'
 }
 
-set_sbt_version () {
+set_sbt_version() {
   sbt_version="${sbt_explicit_version:-$(build_props_sbt)}"
   [[ -n "$sbt_version" ]] || sbt_version=$sbt_release_version
   export sbt_version
 }
 
-url_base () {
+url_base() {
   local version="$1"
 
   case "$version" in
-        0.7.*) echo "http://simple-build-tool.googlecode.com" ;;
-      0.10.* ) echo "$sbt_launch_ivy_release_repo" ;;
+    0.7.*)     echo "https://storage.googleapis.com/google-code-archive-downloads/v2/code.google.com/simple-build-tool" ;;
+    0.10.*)    echo "$sbt_launch_ivy_release_repo" ;;
     0.11.[12]) echo "$sbt_launch_ivy_release_repo" ;;
     0.*-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]-[0-9][0-9][0-9][0-9][0-9][0-9]) # ie "*-yyyymmdd-hhMMss"
-               echo "$sbt_launch_ivy_snapshot_repo" ;;
-          0.*) echo "$sbt_launch_ivy_release_repo" ;;
-    *-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]-[0-9][0-9][0-9][0-9][0-9][0-9]) # ie "*-yyyymmdd-hhMMss"
-               echo "$sbt_launch_mvn_snapshot_repo" ;;
-            *) echo "$sbt_launch_mvn_release_repo" ;;
+      echo          "$sbt_launch_ivy_snapshot_repo" ;;
+    0.*)       echo "$sbt_launch_ivy_release_repo" ;;
+    *-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]T[0-9][0-9][0-9][0-9][0-9][0-9]) # ie "*-yyyymmddThhMMss"
+      echo          "$sbt_launch_mvn_snapshot_repo" ;;
+    *)         echo "$sbt_launch_mvn_release_repo" ;;
   esac
 }
 
-make_url () {
+make_url() {
   local version="$1"
 
   local base="${sbt_launch_repo:-$(url_base "$version")}"
 
   case "$version" in
-        0.7.*) echo "$base/files/sbt-launch-0.7.7.jar" ;;
-      0.10.* ) echo "$base/org.scala-tools.sbt/sbt-launch/$version/sbt-launch.jar" ;;
+    0.7.*)     echo "$base/sbt-launch-0.7.7.jar" ;;
+    0.10.*)    echo "$base/org.scala-tools.sbt/sbt-launch/$version/sbt-launch.jar" ;;
     0.11.[12]) echo "$base/org.scala-tools.sbt/sbt-launch/$version/sbt-launch.jar" ;;
-          0.*) echo "$base/org.scala-sbt/sbt-launch/$version/sbt-launch.jar" ;;
-            *) echo "$base/org/scala-sbt/sbt-launch/$version/sbt-launch.jar" ;;
+    0.*)       echo "$base/org.scala-sbt/sbt-launch/$version/sbt-launch.jar" ;;
+    *)         echo "$base/org/scala-sbt/sbt-launch/$version/sbt-launch-${version}.jar" ;;
   esac
 }
 
-addJava ()     { vlog "[addJava] arg = '$1'"   ;     java_args+=("$1"); }
-addSbt ()      { vlog "[addSbt] arg = '$1'"    ;  sbt_commands+=("$1"); }
-addScalac ()   { vlog "[addScalac] arg = '$1'" ;   scalac_args+=("$1"); }
-addResidual () { vlog "[residual] arg = '$1'"  ; residual_args+=("$1"); }
+addJava()      {
+  vlog "[addJava] arg = '$1'"
+  java_args+=("$1")
+}
+addSbt()       {
+  vlog "[addSbt] arg = '$1'"
+  sbt_commands+=("$1")
+}
+addScalac()    {
+  vlog "[addScalac] arg = '$1'"
+  scalac_args+=("$1")
+}
+addResidual()  {
+  vlog "[residual] arg = '$1'"
+  residual_args+=("$1")
+}
 
-addResolver () { addSbt "set resolvers += $1"; }
-addDebugger () { addJava "-Xdebug" ; addJava "-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=$1"; }
-setThisBuild () {
+addResolver() { addSbt "set resolvers += $1"; }
+
+addDebugger() { addJava "-Xdebug" && addJava "-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=$1"; }
+
+setThisBuild() {
   vlog "[addBuild] args = '$*'"
   local key="$1" && shift
   addSbt "set $key in ThisBuild := $*"
 }
-setScalaVersion () {
+setScalaVersion() {
   [[ "$1" == *"-SNAPSHOT" ]] && addResolver 'Resolver.sonatypeRepo("snapshots")'
   addSbt "++ $1"
 }
-setJavaHome () {
+setJavaHome() {
   java_cmd="$1/bin/java"
   setThisBuild javaHome "_root_.scala.Some(file(\"$1\"))"
   export JAVA_HOME="$1"
@@ -166,9 +214,10 @@ getJavaVersion() {
 
   # java -version on java8 says 1.8.x
   # but on 9 and 10 it's 9.x.y and 10.x.y.
-  if [[ "$str" =~ ^1\.([0-9]+)\..*$ ]]; then
+  if [[ "$str" =~ ^1\.([0-9]+)(\..*)?$ ]]; then
     echo "${BASH_REMATCH[1]}"
-  elif [[ "$str" =~ ^([0-9]+)\..*$ ]]; then
+  # Fixes https://github.com/dwijnand/sbt-extras/issues/326
+  elif [[ "$str" =~ ^([0-9]+)(\..*)?(-ea)?$ ]]; then
     echo "${BASH_REMATCH[1]}"
   elif [[ -n "$str" ]]; then
     echoerr "Can't parse java version from: $str"
@@ -178,8 +227,8 @@ getJavaVersion() {
 checkJava() {
   # Warn if there is a Java version mismatch between PATH and JAVA_HOME/JDK_HOME
 
-  [[ -n "$JAVA_HOME" && -e "$JAVA_HOME/bin/java"     ]] && java="$JAVA_HOME/bin/java"
-  [[ -n "$JDK_HOME"  && -e "$JDK_HOME/lib/tools.jar" ]] && java="$JDK_HOME/bin/java"
+  [[ -n "$JAVA_HOME" && -e "$JAVA_HOME/bin/java"    ]] && java="$JAVA_HOME/bin/java"
+  [[ -n "$JDK_HOME" && -e "$JDK_HOME/lib/tools.jar" ]] && java="$JDK_HOME/bin/java"
 
   if [[ -n "$java" ]]; then
     pathJavaVersion=$(getJavaVersion java)
@@ -193,31 +242,34 @@ checkJava() {
   fi
 }
 
-java_version () {
+java_version() {
   local -r version=$(getJavaVersion "$java_cmd")
   vlog "Detected Java version: $version"
   echo "$version"
 }
 
+is_apple_silicon() { [[ "$(uname -s)" == "Darwin" && "$(uname -m)" == "arm64" ]]; }
+
 # MaxPermSize critical on pre-8 JVMs but incurs noisy warning on 8+
-default_jvm_opts () {
+default_jvm_opts() {
   local -r v="$(java_version)"
-  if [[ $v -ge 8 ]]; then
+  if [[ $v -ge 17 ]]; then
+    echo "$default_jvm_opts_common"
+  elif [[ $v -ge 10 ]]; then
+    if is_apple_silicon; then
+      # As of Dec 2020, JVM for Apple Silicon (M1) doesn't support JVMCI
+      echo "$default_jvm_opts_common"
+    else
+      echo "$default_jvm_opts_common -XX:+UnlockExperimentalVMOptions -XX:+UseJVMCICompiler"
+    fi
+  elif [[ $v -ge 8 ]]; then
     echo "$default_jvm_opts_common"
   else
     echo "-XX:MaxPermSize=384m $default_jvm_opts_common"
   fi
 }
 
-build_props_scala () {
-  if [[ -r "$buildProps" ]]; then
-    versionLine="$(grep '^build.scala.versions' "$buildProps")"
-    versionString="${versionLine##build.scala.versions=}"
-    echo "${versionString%% .*}"
-  fi
-}
-
-execRunner () {
+execRunner() {
   # print the arguments one to a line, quoting any containing spaces
   vlog "# Executing command line:" && {
     for arg; do
@@ -235,40 +287,36 @@ execRunner () {
   setTrapExit
 
   if [[ -n "$batch" ]]; then
-    "$@" < /dev/null
+    "$@" </dev/null
   else
     "$@"
   fi
 }
 
-jar_url ()  { make_url "$1"; }
+jar_url() { make_url "$1"; }
 
-is_cygwin () { [[ "$(uname -a)" == "CYGWIN"* ]]; }
+is_cygwin() { [[ "$(uname -a)" == "CYGWIN"* ]]; }
 
-jar_file () {
-  is_cygwin \
-  && cygpath -w "$sbt_launch_dir/$1/sbt-launch.jar" \
-  || echo "$sbt_launch_dir/$1/sbt-launch.jar"
+jar_file() {
+  is_cygwin &&
+    cygpath -w "$sbt_launch_dir/$1/sbt-launch.jar" ||
+    echo "$sbt_launch_dir/$1/sbt-launch.jar"
 }
 
-download_url () {
+download_url() {
   local url="$1"
   local jar="$2"
 
-  echoerr "Downloading sbt launcher for $sbt_version:"
-  echoerr "  From  $url"
-  echoerr "    To  $jar"
-
   mkdir -p "${jar%/*}" && {
-    if command -v curl > /dev/null 2>&1; then
+    if command -v curl >/dev/null 2>&1; then
       curl --fail --silent --location "$url" --output "$jar"
-    elif command -v wget > /dev/null 2>&1; then
+    elif command -v wget >/dev/null 2>&1; then
       wget -q -O "$jar" "$url"
     fi
   } && [[ -r "$jar" ]]
 }
 
-acquire_sbt_jar () {
+acquire_sbt_jar() {
   {
     sbt_jar="$(jar_file "$sbt_version")"
     [[ -r "$sbt_jar" ]]
@@ -277,11 +325,66 @@ acquire_sbt_jar () {
     [[ -r "$sbt_jar" ]]
   } || {
     sbt_jar="$(jar_file "$sbt_version")"
-    download_url "$(make_url "$sbt_version")" "$sbt_jar"
+    jar_url="$(make_url "$sbt_version")"
+
+    echoerr "Downloading sbt launcher for ${sbt_version}:"
+    echoerr "  From  ${jar_url}"
+    echoerr "    To  ${sbt_jar}"
+
+    download_url "${jar_url}" "${sbt_jar}"
+
+    case "${sbt_version}" in
+      0.*)
+        vlog "SBT versions < 1.0 do not have published MD5 checksums, skipping check"
+        echo ""
+        ;;
+      *)   verify_sbt_jar "${sbt_jar}" ;;
+    esac
   }
 }
 
-usage () {
+verify_sbt_jar() {
+  local jar="${1}"
+  local md5="${jar}.md5"
+  md5url="$(make_url "${sbt_version}").md5"
+
+  echoerr "Downloading sbt launcher ${sbt_version} md5 hash:"
+  echoerr "  From  ${md5url}"
+  echoerr "    To  ${md5}"
+
+  download_url "${md5url}" "${md5}" >/dev/null 2>&1
+
+  if command -v md5sum >/dev/null 2>&1; then
+    if echo "$(cat "${md5}")  ${jar}" | md5sum -c -; then
+      rm -rf "${md5}"
+      return 0
+    else
+      echoerr "Checksum does not match"
+      return 1
+    fi
+  elif command -v md5 >/dev/null 2>&1; then
+    if [ "$(md5 -q "${jar}")" == "$(cat "${md5}")" ]; then
+      rm -rf "${md5}"
+      return 0
+    else
+      echoerr "Checksum does not match"
+      return 1
+    fi
+  elif command -v openssl >/dev/null 2>&1; then
+    if [ "$(openssl md5 -r "${jar}" | awk '{print $1}')" == "$(cat "${md5}")" ]; then
+      rm -rf "${md5}"
+      return 0
+    else
+      echoerr "Checksum does not match"
+      return 1
+    fi
+  else
+    echoerr "Could not find an MD5 command"
+    return 1
+  fi
+}
+
+usage() {
   set_sbt_version
   cat <<EOM
 Usage: $script_name [options]
@@ -291,12 +394,6 @@ options to this runner use a single dash. Any sbt command can be scheduled
 to run first by prefixing the command with --, so --warn, --error and so on
 are not special.
 
-Output filtering: if there is a file in the home directory called .sbtignore
-and this is not an interactive sbt session, the file is treated as a list of
-bash regular expressions. Output lines which match any regex are not echoed.
-One can see exactly which lines would have been suppressed by starting this
-runner with the -x option.
-
   -h | -help         print this message
   -v                 verbose operation (this runner is chattier)
   -d, -w, -q         aliases for --debug, --warn, --error (q means quiet)
@@ -316,48 +413,55 @@ runner with the -x option.
   -script <file>     Run the specified file as a scala script
 
   # sbt version (default: sbt.version from $buildProps if present, otherwise $sbt_release_version)
-  -sbt-force-latest         force the use of the latest release of sbt: $sbt_release_version
-  -sbt-version  <version>   use the specified version of sbt (default: $sbt_release_version)
-  -sbt-dev                  use the latest pre-release version of sbt: $sbt_unreleased_version
-  -sbt-jar      <path>      use the specified jar as the sbt launcher
-  -sbt-launch-dir <path>    directory to hold sbt launchers (default: $sbt_launch_dir)
-  -sbt-launch-repo <url>    repo url for downloading sbt launcher jar (default: $(url_base "$sbt_version"))
+  -sbt-version <version>  use the specified version of sbt (default: $sbt_release_version)
+  -sbt-force-latest       force the use of the latest release of sbt: $sbt_release_version
+  -sbt-dev                use the latest pre-release version of sbt: $sbt_unreleased_version
+  -sbt-jar      <path>    use the specified jar as the sbt launcher
+  -sbt-launch-dir <path>  directory to hold sbt launchers (default: $sbt_launch_dir)
+  -sbt-launch-repo <url>  repo url for downloading sbt launcher jar (default: $(url_base "$sbt_version"))
 
   # scala version (default: as chosen by sbt)
-  -28                       use $latest_28
-  -29                       use $latest_29
-  -210                      use $latest_210
-  -211                      use $latest_211
-  -212                      use $latest_212
-  -213                      use $latest_213
-  -scala-home <path>        use the scala build at the specified directory
-  -scala-version <version>  use the specified version of scala
-  -binary-version <version> use the specified scala version when searching for dependencies
+  -28                        use $latest_28
+  -29                        use $latest_29
+  -210                       use $latest_210
+  -211                       use $latest_211
+  -212                       use $latest_212
+  -213                       use $latest_213
+  -scala-home <path>         use the scala build at the specified directory
+  -scala-version <version>   use the specified version of scala
+  -binary-version <version>  use the specified scala version when searching for dependencies
 
   # java version (default: java from PATH, currently $(java -version 2>&1 | grep version))
-  -java-home <path>         alternate JAVA_HOME
+  -java-home <path>          alternate JAVA_HOME
 
   # passing options to the jvm - note it does NOT use JAVA_OPTS due to pollution
   # The default set is used if JVM_OPTS is unset and no -jvm-opts file is found
-  <default>        $(default_jvm_opts)
-  JVM_OPTS         environment variable holding either the jvm args directly, or
-                   the reference to a file containing jvm args if given path is prepended by '@' (e.g. '@/etc/jvmopts')
-                   Note: "@"-file is overridden by local '.jvmopts' or '-jvm-opts' argument.
-  -jvm-opts <path> file containing jvm args (if not given, .jvmopts in project root is used if present)
-  -Dkey=val        pass -Dkey=val directly to the jvm
-  -J-X             pass option -X directly to the jvm (-J is stripped)
+  <default>         $(default_jvm_opts)
+  JVM_OPTS          environment variable holding either the jvm args directly, or
+                    the reference to a file containing jvm args if given path is prepended by '@' (e.g. '@/etc/jvmopts')
+                    Note: "@"-file is overridden by local '.jvmopts' or '-jvm-opts' argument.
+  -jvm-opts <path>  file containing jvm args (if not given, .jvmopts in project root is used if present)
+  -Dkey=val         pass -Dkey=val directly to the jvm
+  -J-X              pass option -X directly to the jvm (-J is stripped)
 
   # passing options to sbt, OR to this runner
-  SBT_OPTS         environment variable holding either the sbt args directly, or
-                   the reference to a file containing sbt args if given path is prepended by '@' (e.g. '@/etc/sbtopts')
-                   Note: "@"-file is overridden by local '.sbtopts' or '-sbt-opts' argument.
-  -sbt-opts <path> file containing sbt args (if not given, .sbtopts in project root is used if present)
-  -S-X             add -X to sbt's scalacOptions (-S is stripped)
+  SBT_OPTS          environment variable holding either the sbt args directly, or
+                    the reference to a file containing sbt args if given path is prepended by '@' (e.g. '@/etc/sbtopts')
+                    Note: "@"-file is overridden by local '.sbtopts' or '-sbt-opts' argument.
+  -sbt-opts <path>  file containing sbt args (if not given, .sbtopts in project root is used if present)
+  -S-X              add -X to sbt's scalacOptions (-S is stripped)
+
+  # passing options exclusively to this runner
+  SBTX_OPTS         environment variable holding either the sbt-extras args directly, or
+                    the reference to a file containing sbt-extras args if given path is prepended by '@' (e.g. '@/etc/sbtxopts')
+                    Note: "@"-file is overridden by local '.sbtxopts' or '-sbtx-opts' argument.
+  -sbtx-opts <path> file containing sbt-extras args (if not given, .sbtxopts in project root is used if present)
 EOM
+  exit 0
 }
 
-process_args () {
-  require_arg () {
+process_args() {
+  require_arg() {
     local type="$1"
     local opt="$2"
     local arg="$3"
@@ -368,50 +472,56 @@ process_args () {
   }
   while [[ $# -gt 0 ]]; do
     case "$1" in
-          -h|-help) usage; exit 0 ;;
-                -v) verbose=true && shift ;;
-                -d) addSbt "--debug" && shift ;;
-                -w) addSbt "--warn"  && shift ;;
-                -q) addSbt "--error" && shift ;;
-                -x) debugUs=true && shift ;;
-            -trace) require_arg integer "$1" "$2" && trace_level="$2" && shift 2 ;;
-              -ivy) require_arg path "$1" "$2" && addJava "-Dsbt.ivy.home=$2" && shift 2 ;;
-        -no-colors) addJava "-Dsbt.log.noformat=true" && shift ;;
-         -no-share) noshare=true && shift ;;
-         -sbt-boot) require_arg path "$1" "$2" && addJava "-Dsbt.boot.directory=$2" && shift 2 ;;
-          -sbt-dir) require_arg path "$1" "$2" && sbt_dir="$2" && shift 2 ;;
-        -debug-inc) addJava "-Dxsbt.inc.debug=true" && shift ;;
-          -offline) addSbt "set offline in Global := true" && shift ;;
-        -jvm-debug) require_arg port "$1" "$2" && addDebugger "$2" && shift 2 ;;
-            -batch) batch=true && shift ;;
-           -prompt) require_arg "expr" "$1" "$2" && setThisBuild shellPrompt "(s => { val e = Project.extract(s) ; $2 })" && shift 2 ;;
-           -script) require_arg file "$1" "$2" && sbt_script="$2" && addJava "-Dsbt.main.class=sbt.ScriptMain" && shift 2 ;;
-
-       -sbt-create) sbt_create=true && shift ;;
-          -sbt-jar) require_arg path "$1" "$2" && sbt_jar="$2" && shift 2 ;;
+      -h |   -help) usage ;;
+      -v)           verbose=true && shift ;;
+      -d)           addSbt "--debug" && shift ;;
+      -w)           addSbt "--warn"  && shift ;;
+      -q)           addSbt "--error" && shift ;;
+      -x)           shift ;; # currently unused
+      -trace)       require_arg integer "$1" "$2" && trace_level="$2" && shift 2 ;;
+      -debug-inc)   addJava "-Dxsbt.inc.debug=true" && shift ;;
+
+      -no-colors)   addJava "-Dsbt.log.noformat=true" && addJava "-Dsbt.color=false" && shift ;;
+      -sbt-create)  sbt_create=true && shift ;;
+      -sbt-dir)     require_arg path "$1" "$2" && sbt_dir="$2" && shift 2 ;;
+      -sbt-boot)    require_arg path "$1" "$2" && addJava "-Dsbt.boot.directory=$2" && shift 2 ;;
+      -ivy)         require_arg path "$1" "$2" && addJava "-Dsbt.ivy.home=$2" && shift 2 ;;
+      -no-share)    noshare=true && shift ;;
+      -offline)     addSbt "set offline in Global := true" && shift ;;
+      -jvm-debug)   require_arg port "$1" "$2" && addDebugger "$2" && shift 2 ;;
+      -batch)       batch=true && shift ;;
+      -prompt)      require_arg "expr" "$1" "$2" && setThisBuild shellPrompt "(s => { val e = Project.extract(s) ; $2 })" && shift 2 ;;
+      -script)      require_arg file "$1" "$2" && sbt_script="$2" && addJava "-Dsbt.main.class=sbt.ScriptMain" && shift 2 ;;
+
       -sbt-version) require_arg version "$1" "$2" && sbt_explicit_version="$2" && shift 2 ;;
- -sbt-force-latest) sbt_explicit_version="$sbt_release_version" && shift ;;
-          -sbt-dev) sbt_explicit_version="$sbt_unreleased_version" && shift ;;
-   -sbt-launch-dir) require_arg path "$1" "$2" && sbt_launch_dir="$2" && shift 2 ;;
-  -sbt-launch-repo) require_arg path "$1" "$2" && sbt_launch_repo="$2" && shift 2 ;;
-    -scala-version) require_arg version "$1" "$2" && setScalaVersion "$2" && shift 2 ;;
-   -binary-version) require_arg version "$1" "$2" && setThisBuild scalaBinaryVersion "\"$2\"" && shift 2 ;;
-       -scala-home) require_arg path "$1" "$2" && setThisBuild scalaHome "_root_.scala.Some(file(\"$2\"))" && shift 2 ;;
-        -java-home) require_arg path "$1" "$2" && setJavaHome "$2" && shift 2 ;;
-         -sbt-opts) require_arg path "$1" "$2" && sbt_opts_file="$2" && shift 2 ;;
-         -jvm-opts) require_arg path "$1" "$2" && jvm_opts_file="$2" && shift 2 ;;
-
-               -D*) addJava "$1" && shift ;;
-               -J*) addJava "${1:2}" && shift ;;
-               -S*) addScalac "${1:2}" && shift ;;
-               -28) setScalaVersion "$latest_28" && shift ;;
-               -29) setScalaVersion "$latest_29" && shift ;;
-              -210) setScalaVersion "$latest_210" && shift ;;
-              -211) setScalaVersion "$latest_211" && shift ;;
-              -212) setScalaVersion "$latest_212" && shift ;;
-              -213) setScalaVersion "$latest_213" && shift ;;
-               new) sbt_new=true && : ${sbt_explicit_version:=$sbt_release_version} && addResidual "$1" && shift ;;
-                 *) addResidual "$1" && shift ;;
+      -sbt-force-latest) sbt_explicit_version="$sbt_release_version" && shift ;;
+      -sbt-dev)     sbt_explicit_version="$sbt_unreleased_version" && shift ;;
+      -sbt-jar)     require_arg path "$1" "$2" && sbt_jar="$2" && shift 2 ;;
+      -sbt-launch-dir) require_arg path "$1" "$2" && sbt_launch_dir="$2" && shift 2 ;;
+      -sbt-launch-repo) require_arg path "$1" "$2" && sbt_launch_repo="$2" && shift 2 ;;
+
+      -28)          setScalaVersion "$latest_28"  && shift ;;
+      -29)          setScalaVersion "$latest_29"  && shift ;;
+      -210)         setScalaVersion "$latest_210" && shift ;;
+      -211)         setScalaVersion "$latest_211" && shift ;;
+      -212)         setScalaVersion "$latest_212" && shift ;;
+      -213)         setScalaVersion "$latest_213" && shift ;;
+
+      -scala-version) require_arg version "$1" "$2" && setScalaVersion "$2" && shift 2 ;;
+      -binary-version) require_arg version "$1" "$2" && setThisBuild scalaBinaryVersion "\"$2\"" && shift 2 ;;
+      -scala-home)  require_arg path "$1" "$2" && setThisBuild scalaHome "_root_.scala.Some(file(\"$2\"))" && shift 2 ;;
+      -java-home)   require_arg path "$1" "$2" && setJavaHome "$2" && shift 2 ;;
+      -sbt-opts)    require_arg path "$1" "$2" && sbt_opts_file="$2" && shift 2 ;;
+      -sbtx-opts) require_arg path "$1" "$2" && sbtx_opts_file="$2" && shift 2 ;;
+      -jvm-opts)    require_arg path "$1" "$2" && jvm_opts_file="$2" && shift 2 ;;
+
+      -D*)          addJava "$1" && shift ;;
+      -J*)          addJava "${1:2}" && shift ;;
+      -S*)          addScalac "${1:2}" && shift ;;
+
+      new)          sbt_new=true && : ${sbt_explicit_version:=$sbt_release_version} && addResidual "$1" && shift ;;
+
+      *)            addResidual "$1" && shift ;;
     esac
   done
 }
@@ -425,7 +535,7 @@ readConfigFile() {
   until $end; do
     read -r || end=true
     [[ $REPLY =~ ^# ]] || [[ -z $REPLY ]] || echo "$REPLY"
-  done < "$1"
+  done <"$1"
 }
 
 # if there are file/environment sbt_opts, process again so we
@@ -435,7 +545,19 @@ if [[ -r "$sbt_opts_file" ]]; then
   while read -r opt; do extra_sbt_opts+=("$opt"); done < <(readConfigFile "$sbt_opts_file")
 elif [[ -n "$SBT_OPTS" && ! ("$SBT_OPTS" =~ ^@.*) ]]; then
   vlog "Using sbt options defined in variable \$SBT_OPTS"
-  IFS=" " read -r -a extra_sbt_opts <<< "$SBT_OPTS"
+  IFS=" " read -r -a extra_sbt_opts <<<"$SBT_OPTS"
+else
+  vlog "No extra sbt options have been defined"
+fi
+
+# if there are file/environment sbtx_opts, process again so we
+# can supply args to this runner
+if [[ -r "$sbtx_opts_file" ]]; then
+  vlog "Using sbt options defined in file $sbtx_opts_file"
+  while read -r opt; do extra_sbt_opts+=("$opt"); done < <(readConfigFile "$sbtx_opts_file")
+elif [[ -n "$SBTX_OPTS" && ! ("$SBTX_OPTS" =~ ^@.*) ]]; then
+  vlog "Using sbt options defined in variable \$SBTX_OPTS"
+  IFS=" " read -r -a extra_sbt_opts <<<"$SBTX_OPTS"
 else
   vlog "No extra sbt options have been defined"
 fi
@@ -454,8 +576,8 @@ checkJava
 # only exists in 0.12+
 setTraceLevel() {
   case "$sbt_version" in
-    "0.7."* | "0.10."* | "0.11."* ) echoerr "Cannot set trace level in sbt version $sbt_version" ;;
-                                 *) setThisBuild traceLevel "$trace_level" ;;
+    "0.7."* | "0.10."* | "0.11."*) echoerr "Cannot set trace level in sbt version $sbt_version" ;;
+    *)                             setThisBuild traceLevel "$trace_level" ;;
   esac
 }
 
@@ -466,12 +588,12 @@ setTraceLevel() {
 vlog "Detected sbt version $sbt_version"
 
 if [[ -n "$sbt_script" ]]; then
-  residual_args=( "$sbt_script" "${residual_args[@]}" )
+  residual_args=("$sbt_script" "${residual_args[@]}")
 else
   # no args - alert them there's stuff in here
-  (( argumentCount > 0 )) || {
+  ((argumentCount > 0)) || {
     vlog "Starting $script_name: invoke with -help for other options"
-    residual_args=( shell )
+    residual_args=(shell)
   }
 fi
 
@@ -497,7 +619,7 @@ EOM
 # no jar? download it.
 [[ -r "$sbt_jar" ]] || acquire_sbt_jar || {
   # still no jar? uh-oh.
-  echo "Download failed. Obtain the jar manually and place it at $sbt_jar"
+  echo "Could not download and verify the launcher. Obtain the jar manually and place it at $sbt_jar"
   exit 1
 }
 
@@ -507,12 +629,12 @@ if [[ -n "$noshare" ]]; then
   done
 else
   case "$sbt_version" in
-    "0.7."* | "0.10."* | "0.11."* | "0.12."* )
+    "0.7."* | "0.10."* | "0.11."* | "0.12."*)
       [[ -n "$sbt_dir" ]] || {
         sbt_dir="$HOME/.sbt/$sbt_version"
         vlog "Using $sbt_dir as sbt dir, -sbt-dir to override."
       }
-    ;;
+      ;;
   esac
 
   if [[ -n "$sbt_dir" ]]; then
@@ -525,54 +647,18 @@ if [[ -r "$jvm_opts_file" ]]; then
   while read -r opt; do extra_jvm_opts+=("$opt"); done < <(readConfigFile "$jvm_opts_file")
 elif [[ -n "$JVM_OPTS" && ! ("$JVM_OPTS" =~ ^@.*) ]]; then
   vlog "Using jvm options defined in \$JVM_OPTS variable"
-  IFS=" " read -r -a extra_jvm_opts <<< "$JVM_OPTS"
+  IFS=" " read -r -a extra_jvm_opts <<<"$JVM_OPTS"
 else
   vlog "Using default jvm options"
-  IFS=" " read -r -a extra_jvm_opts <<< "$(default_jvm_opts)"
+  IFS=" " read -r -a extra_jvm_opts <<<"$( default_jvm_opts)"
 fi
 
 # traceLevel is 0.12+
 [[ -n "$trace_level" ]] && setTraceLevel
 
-main () {
-  execRunner "$java_cmd" \
-    "${extra_jvm_opts[@]}" \
-    "${java_args[@]}" \
-    -jar "$sbt_jar" \
-    "${sbt_commands[@]}" \
-    "${residual_args[@]}"
-}
-
-# sbt inserts this string on certain lines when formatting is enabled:
-#   val OverwriteLine = "\r\u001BM\u001B[2K"
-# ...in order not to spam the console with a million "Resolving" lines.
-# Unfortunately that makes it that much harder to work with when
-# we're not going to print those lines anyway. We strip that bit of
-# line noise, but leave the other codes to preserve color.
-mainFiltered () {
-  local -r excludeRegex=$(grep -E -v '^#|^$' ~/.sbtignore | paste -sd'|' -)
-
-  echoLine () {
-    local -r line="$1"
-    local -r line1="${line//\r\x1BM\x1B\[2K//g}"       # This strips the OverwriteLine code.
-    local -r line2="${line1//\x1B\[[0-9;]*[JKmsu]//g}" # This strips all codes - we test regexes against this.
-
-    if [[ $line2 =~ $excludeRegex ]]; then
-      [[ -n $debugUs ]] && echo "[X] $line1"
-    else
-      [[ -n $debugUs ]] && echo "    $line1" || echo "$line1"
-    fi
-  }
-
-  echoLine "Starting sbt with output filtering enabled."
-  main | while read -r line; do echoLine "$line"; done
-}
-
-# Only filter if there's a filter file and we don't see a known interactive command.
-# Obviously this is super ad hoc but I don't know how to improve on it. Testing whether
-# stdin is a terminal is useless because most of my use cases for this filtering are
-# exactly when I'm at a terminal, running sbt non-interactively.
-shouldFilter () { [[ -f ~/.sbtignore ]] && ! grep -E -q '\b(shell|console|consoleProject)\b' <<<"${residual_args[@]}"; }
-
-# run sbt
-if shouldFilter; then mainFiltered; else main; fi
+execRunner "$java_cmd" \
+  "${extra_jvm_opts[@]}" \
+  "${java_args[@]}" \
+  -jar "$sbt_jar" \
+  "${sbt_commands[@]}" \
+  "${residual_args[@]}"