Merge pull request #756 from pimoroni/ci/fix-caching

CI: Fix various build errors due to a caching race condition.

.github/workflows/micropython.yml

@@ -126,6 +126,12 @@ jobs:
         submodules: true
         path: pimoroni-pico-${{ github.sha }}
   
+    - name: "HACK: Revert Pico SDK Patch"  # Avoid an already-patched MicroPython tree breaking our build
+      shell: bash
+      working-directory: micropython
+      run: |
+        git checkout lib/pico-sdk
+
     - name: "HACK: Pico SDK Patch"
       if: matrix.patch == true
       shell: bash
@@ -138,26 +144,26 @@ jobs:
       shell: bash
       working-directory: micropython/ports/rp2
       run: |
-        cmake -S . -B build-${{matrix.board}} -DPICO_BUILD_DOCS=0 -DUSER_C_MODULES=${{env.USER_C_MODULES}} -DMICROPY_BOARD_DIR=${{env.MICROPY_BOARD_DIR}} -DMICROPY_BOARD=${{matrix.board}} -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+        cmake -S . -B build-${{matrix.name}} -DPICO_BUILD_DOCS=0 -DUSER_C_MODULES=${{env.USER_C_MODULES}} -DMICROPY_BOARD_DIR=${{env.MICROPY_BOARD_DIR}} -DMICROPY_BOARD=${{matrix.board}} -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
     
     - name: Configure MicroPython (Upstream Board Dir)
       if: matrix.local_board_dir != true
       shell: bash
       working-directory: micropython/ports/rp2
       run: |
-        cmake -S . -B build-${{matrix.board}} -DPICO_BUILD_DOCS=0 -DUSER_C_MODULES=${{env.USER_C_MODULES}} -DMICROPY_BOARD=${{matrix.board}} -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
+        cmake -S . -B build-${{matrix.name}} -DPICO_BUILD_DOCS=0 -DUSER_C_MODULES=${{env.USER_C_MODULES}} -DMICROPY_BOARD=${{matrix.board}} -DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
   
     - name: Build MicroPython
       shell: bash
       working-directory: micropython/ports/rp2
       run: |
         ccache --zero-stats || true
-        cmake --build build-${{matrix.board}} -j 2
+        cmake --build build-${{matrix.name}} -j 2
         ccache --show-stats || true
 
     - name: Rename .uf2 for artifact
       shell: bash
-      working-directory: micropython/ports/rp2/build-${{matrix.board}}
+      working-directory: micropython/ports/rp2/build-${{matrix.name}}
       run: |
         cp firmware.uf2 $RELEASE_FILE.uf2
 
@@ -165,7 +171,7 @@ jobs:
       uses: actions/upload-artifact@v3
       with:
         name: ${{env.RELEASE_FILE}}.uf2
-        path: micropython/ports/rp2/build-${{matrix.board}}/${{env.RELEASE_FILE}}.uf2
+        path: micropython/ports/rp2/build-${{matrix.name}}/${{env.RELEASE_FILE}}.uf2
 
     - name: Upload .uf2
       if: github.event_name == 'release'
@@ -173,7 +179,7 @@ jobs:
       env:
         GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
       with:
-        asset_path: micropython/ports/rp2/build-${{matrix.board}}/firmware.uf2
+        asset_path: micropython/ports/rp2/build-${{matrix.name}}/firmware.uf2
         upload_url: ${{github.event.release.upload_url}}
         asset_name: ${{env.RELEASE_FILE}}.uf2
         asset_content_type: application/octet-stream