mac:(launchd) mange the WS App as a service

assets/io.chef.chef-workstation.app.plist

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>Label</key>
+	<string>io.chef.chef-workstation.app</string>
+	<key>ProgramArguments</key>
+	<array>
+		<string>/Applications/Chef Workstation App.app/Contents/MacOS/Chef Workstation App</string>
+	</array>
+	<key>RunAtLoad</key>
+	<true/>
+	<key>KeepAlive</key>
+	<dict>
+		<key>SuccessfulExit</key>
+		<false/>
+	</dict>
+</dict>
+</plist>

assets/scripts/chef_workstation_app_launcher

@@ -0,0 +1,117 @@
+#!/bin/sh
+#
+# Copyright:: Copyright 2020 Chef Software, Inc.
+# Author:: Salim Afiune <afiune@chef.io>
+# License:: Apache License, Version 2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+set -eou pipefail
+
+PROGNAME=$(basename "$0")
+PRODUCTNAME="Chef Workstation App"
+SERVICENAME="io.chef.chef-workstation.app"
+PLISTFILE="${SERVICENAME}.plist"
+
+usage() {
+  cat <<DOC
+Usage: ${PROGNAME} <subcommand>
+
+Controls the ${PRODUCTNAME} launcher behavior for macOS systems.
+
+Subcommands:
+    show      Show launchd information about the ${PRODUCTNAME} service.
+    load      Bootstraps the ${PRODUCTNAME} service.
+    remove    Removes the ${PRODUCTNAME} service.
+DOC
+}
+
+main()
+{
+  if ! is_darwin; then
+    error_exit "Launcher is only available for macOS systems"
+  fi
+
+  if [ $# -eq 0 ]; then
+    usage
+    exit 1
+  fi
+
+  case "$1" in
+    "-h"|"--help")
+      usage
+      ;;
+    "show")
+      launchctl_show
+      ;;
+    "load")
+      launchctl_load
+      ;;
+    "remove")
+      launchctl_remove
+      ;;
+    *)
+      error_exit "invalid option '$1'.\\nTry '--help' for more information."
+  esac
+}
+
+error_exit()
+{
+  echo "${PROGNAME}: ${1:-"Unknown Error"}" 1>&2
+  exit 1
+}
+
+is_darwin()
+{
+  uname -v | grep "^Darwin" >/dev/null 2>&1
+}
+
+launchctl_load()
+{
+  if [ ! -d "/Applications/Chef Workstation App.app/Contents" ]; then
+    error_exit "${PRODUCTNAME} not found in /Applications folder. The application needs to be installed first."
+  fi
+
+  launchctl_remove
+
+  # we let launchd to process the removal of the service
+  sleep 1
+
+  cp "/Applications/Chef Workstation App.app/Contents/Resources/assets/${PLISTFILE}" "$HOME/Library/LaunchAgents"
+  ( cd "$HOME/Library/LaunchAgents" || error_exit "unable to enter LaunchAgents directory"
+    launchctl load ${PLISTFILE}
+  )
+}
+
+launchctl_remove()
+{
+  if launchctl list "$SERVICENAME" >/dev/null 2>&1; then
+    launchctl remove "$SERVICENAME"
+  fi
+
+  if [ -f "$HOME/Library/LaunchAgents/${PLISTFILE}" ]; then
+    rm -rf "$HOME/Library/LaunchAgents/${PLISTFILE}"
+  fi
+}
+
+launchctl_show()
+{
+  if launchctl list "$SERVICENAME" >/dev/null 2>&1; then
+    launchctl list "$SERVICENAME"
+  else
+    error_exit "$PRODUCTNAME is not yet loaded.\\nTry using the subcommand 'load'."
+  fi
+}
+
+main "$@"