A bit of cleanup and re-ordering

.github/workflows/pio_build.yml

@@ -14,16 +14,15 @@ jobs:
   build:
 
     runs-on: ubuntu-latest
-    continue-on-error: true
     strategy:
       matrix:
-        example:
+        framework: ["Arduino", "IDF"]
-          - "examples/PIO_TestPatterns"
         no_gfx: ["", -DNO_GFX]
         no_fast_functions: ["", -DNO_FAST_FUNCTIONS]
         no_cie1931: ["", -DNO_CIE1931]
         virtual_panel: ["", -DVIRTUAL_PANE]
-        idf: [true, false]
+        example:
+          - "examples/PIO_TestPatterns"
         exclude:
           - no_fast_functions: ""
             virtual_panel: -DVIRTUAL_PANE
@@ -45,13 +44,13 @@ jobs:
     - name: Install Platformio
       run: pip install --upgrade platformio
     - name: Run PlatformIO CI (Arduino)
-      if: ${{ !matrix.idf}}
+      if: ${{ matrix.framework == 'Arduino'}}
       env: 
         PLATFORMIO_BUILD_FLAGS: ${{ matrix.no_gfx }} ${{ matrix.no_fast_functions }} ${{ matrix.no_cie1931 }} ${{ matrix.virtual_panel }}
         PLATFORMIO_CI_SRC: ${{ matrix.example }}
       run: pio ci -e esp32 -c ${{ matrix.example }}/platformio.ini
     - name: Run PlatformIO CI (ESP-IDF)
-      if: ${{ matrix.idf }}
+      if: ${{ matrix.framework == 'IDF'}}
       env: 
         PLATFORMIO_BUILD_FLAGS: -DIDF_BUILD ${{ matrix.no_gfx }} ${{ matrix.no_fast_functions }} ${{ matrix.no_cie1931 }} ${{ matrix.virtual_panel }}
       # pio ci doesn't use our sdkconfig, so we have to use pio run

examples/PIO_TestPatterns/platformio.ini

@@ -19,15 +19,5 @@ monitor_filters = esp32_exception_decoder
 [env:esp32]
 framework = arduino
 
-; PIO CI can't handle IDF git modules properly (yet)
 [env:esp32idf]
-;platform_packages =
-;  ; use a special branch
-;  framework-arduinoespressif32 @ https://github.com/espressif/arduino-esp32.git#idf-release/v4.4
 framework = arduino, espidf
-;build_flags =
-;    ${env.build_flags}
-;    -DARDUINO=200
-;    -DESP32
-;    ;-DUSE_FASTLINES
-;    -DNO_GFX