add python script to return port directory name from board name for use in deps port action

takes an optional port value that will then be validated

Author: Neradoc

.github/actions/deps/ports/action.yml

@@ -11,22 +11,30 @@ inputs:
 runs:
   using: composite
   steps:
+  steps:
+    - name: Board to port
+      id: board-to-port
+      run: |
+        PORT=$(python tools/board_to_port.py "${{ inputs.board }}" "${{ inputs.port }}")
+        echo "port=$PORT" >> $GITHUB_OUTPUT
+      shell: bash
+
     - name: Set up broadcom
-      if: inputs.port == 'broadcom'
+      if: steps.board-to-port.outputs.port == 'broadcom'
       uses: ./.github/actions/deps/ports/broadcom
 
     - name: Set up espressif
-      if: inputs.port == 'espressif'
+      if: steps.board-to-port.outputs.port == 'espressif'
       uses: ./.github/actions/deps/ports/espressif
 
     - name: Set up litex
-      if: inputs.port == 'litex'
+      if: steps.board-to-port.outputs.port == 'litex'
       uses: ./.github/actions/deps/ports/litex
 
     - name: Set up nordic
-      if: inputs.port == 'nordic'
+      if: steps.board-to-port.outputs.port == 'nordic'
       uses: ./.github/actions/deps/ports/nordic
 
     - name: Set up Zephyr
-      if: inputs.port == 'zephyr-cp'
+      if: steps.board-to-port.outputs.port == 'zephyr-cp'
       uses: ./.github/actions/deps/ports/zephyr-cp

tools/board_to_port.py

@@ -0,0 +1,21 @@
+import sys
+from pathlib import Path
+
+docs = Path(__file__).parent.parent / "docs"
+sys.path.append(str(docs))
+from shared_bindings_matrix import get_board_mapping
+
+board = sys.argv[1]
+port = sys.argv[2]
+
+if port.strip() != "":
+    print(port)
+    sys.exit(0)
+
+board_mapping = get_board_mapping()
+if board in board_mapping:
+    board_info = board_mapping[board]
+    print(board_info["port"])
+    sys.exit(0)
+
+raise ValueError(f"No port directory associated with the board tag given {board}.")