Properly exit appveyor batch scripts on error

misc/appveyorBuildConfigurationScript.bat

@@ -1,3 +1,4 @@
+SETLOCAL EnableDelayedExpansion
 
 @REM  # Possibilities:
 @REM  # Debug build + coverage
@@ -7,21 +8,21 @@
 if "%CONFIGURATION%"=="Debug" (
   if "%coverage%"=="1" (
     @REM # coverage needs to build the special helper as well as the main
-    cmake -Hmisc -Bbuild-misc -A%PLATFORM%
-    cmake --build build-misc
-    cmake -H. -BBuild -A%PLATFORM% -DUSE_WMAIN=%wmain% -DMEMORYCHECK_COMMAND=build-misc\Debug\CoverageHelper.exe -DMEMORYCHECK_COMMAND_OPTIONS=--sep-- -DMEMORYCHECK_TYPE=Valgrind
+    cmake -Hmisc -Bbuild-misc -A%PLATFORM% || exit /b !ERRORLEVEL!
+    cmake --build build-misc || exit /b !ERRORLEVEL!
+    cmake -H. -BBuild -A%PLATFORM% -DUSE_WMAIN=%wmain% -DMEMORYCHECK_COMMAND=build-misc\Debug\CoverageHelper.exe -DMEMORYCHECK_COMMAND_OPTIONS=--sep-- -DMEMORYCHECK_TYPE=Valgrind || exit /b !ERRORLEVEL! || exit /b !ERRORLEVEL!
   ) else (
     @REM # We know that coverage is 0
     if "%examples%"=="1" (
       @REM # Examples live off the single header, so it needs to be regenerated
-      python scripts\generateSingleHeader.py
-      cmake -H. -BBuild -A%PLATFORM% -DUSE_WMAIN=%wmain% -DCATCH_BUILD_EXAMPLES=ON -DCATCH_BUILD_EXTRA_TESTS=ON
+      python scripts\generateSingleHeader.py || exit /b !ERRORLEVEL!
+      cmake -H. -BBuild -A%PLATFORM% -DUSE_WMAIN=%wmain% -DCATCH_BUILD_EXAMPLES=ON -DCATCH_BUILD_EXTRA_TESTS=ON || exit /b !ERRORLEVEL!
     ) else (
       @REM # This is just a plain debug build
-      cmake -H. -BBuild -A%PLATFORM% -DUSE_WMAIN=%wmain%
+      cmake -H. -BBuild -A%PLATFORM% -DUSE_WMAIN=%wmain% || exit /b !ERRORLEVEL!
     )
   )
 )
 if "%CONFIGURATION%"=="Release" (
-  cmake -H. -BBuild -A%PLATFORM% -DUSE_WMAIN=%wmain%
+  cmake -H. -BBuild -A%PLATFORM% -DUSE_WMAIN=%wmain% || exit /b !ERRORLEVEL!
 )

misc/appveyorTestRunScript.bat

@@ -1,13 +1,15 @@
+SETLOCAL EnableDelayedExpansion
+
 cd Build
 if "%CONFIGURATION%"=="Debug" (
   if "%coverage%"=="1" (
-    ctest -j 2 -C %CONFIGURATION% -D ExperimentalMemCheck
-    python ..\misc\appveyorMergeCoverageScript.py
-    codecov --root .. --no-color --disable gcov -f cobertura.xml -t %CODECOV_TOKEN%
+    ctest -j 2 -C %CONFIGURATION% -D ExperimentalMemCheck || exit /b !ERRORLEVEL!
+    python ..\misc\appveyorMergeCoverageScript.py || exit /b !ERRORLEVEL!
+    codecov --root .. --no-color --disable gcov -f cobertura.xml -t %CODECOV_TOKEN% || exit /b !ERRORLEVEL!
   ) else (
-    ctest -j 2 -C %CONFIGURATION%
+    ctest -j 2 -C %CONFIGURATION% || exit /b !ERRORLEVEL!
   )
 )
 if "%CONFIGURATION%"=="Release" (
-  ctest -j 2 -C %CONFIGURATION%
+  ctest -j 2 -C %CONFIGURATION% || exit /b !ERRORLEVEL!
 )