Hab launch returns the error code returned by the called alias

bin/hab.bat

@@ -41,10 +41,12 @@ if exist %temp_launch_file% (
     )
 )
 
-:: the config scripts turn echo back on, turn it off again
-@ECHO OFF
+:: the config scripts turn echo back on, Make sure to prefix future commands
+:: with @ to prevent printing them to the console
 
 :: Remove the temp directory and its contents
-RMDIR /S /Q %temp_directory%
+@RMDIR /S /Q %temp_directory%
 
-@ECHO ON
+:: Ensure the errorlevel is reported to the calling process. This is needed
+:: when calling hab via subprocess/QtCore.QProcess calls to receive errorlevel
+@exit /b %ERRORLEVEL%

bin/hab.ps1

@@ -47,3 +47,6 @@ elseif (Test-Path $temp_config -PathType Leaf)
 
 # Remove the temp directory if it exists
 Remove-Item $temp_directory -Force -Recurse -erroraction 'silentlycontinue'
+
+# Ensure the exit-code is reported to the calling process.
+exit $LASTEXITCODE

hab/parsers/hab_base.py

@@ -631,11 +631,13 @@ def shell_formats(cls, ext):
         if ext in (".bat", ".cmd"):
             ret["launch"] = 'cmd.exe /k "{path}"\n'
         elif ext == ".ps1":
-            ret[
-                "launch"
-            ] = 'powershell.exe{launch_args} -ExecutionPolicy Unrestricted . "{path}"\n'
+            ret["launch"] = (
+                'powershell.exe{launch_args} -ExecutionPolicy Unrestricted -File "{path}"\n'
+                "exit $LASTEXITCODE\n"
+            )
         elif ext in (".sh", ""):  # Assume no ext is a .sh file
-            ret["launch"] = 'bash --init-file "{path}"\n'
+            # `set -e` propagates the error code returned by bash to the caller
+            ret["launch"] = 'set -e\nbash --init-file "{path}"\n'
 
         return ret
 

hab/templates/config.ps1

@@ -55,4 +55,6 @@ function {{ alias }}() {
 {% if launch_info %}
 # Run the requested command
 {{ launch_info.key }}{{ launch_info.args }}
+# Ensure the exit-code is reported to the calling process.
+exit $LASTEXITCODE
 {% endif %}

hab/templates/config.sh

@@ -1,6 +1,11 @@
 # Customize the prompt
 export PS1="[{{ hab_cfg.uri }}] $PS1"
 
+# Exit immediately if a command exits with a non-zero status.
+# This ensures that if any exit codes are encountered it gets propagated to
+# whatever originally called hab.
+set -e
+
 # Setting global environment variables:
 {% for key, value in hab_cfg.environment.items() %}
 {% if value %}