refactor(ci): use flake to build SVGs

.github/workflows/draw-keymaps.yml

@@ -21,72 +21,24 @@ jobs:
     steps:
 
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
-          fetch-depth: 1 # Set to 2 if amending, or 1 if creating a new commit
+          # Set to 2 if amending, or 1 if creating a new commit
+          fetch-depth: 1
           submodules: recursive
 
-      - name: Install python dependencies
-        run: |
-          pip install "git+https://github.com/caksoylar/keymap-drawer.git@${{ env.km_dr_version }}"
-          pip install pyyaml
+      - name: Install nix
+        uses: DeterminateSystems/nix-installer-action@main
+      - name: Setup nix cache
+        uses: DeterminateSystems/magic-nix-cache-action@main
 
-      # TODO get keyboads & configs dynamically
-      - name: Parse keymap
-        run: |
-          # TODO set generic vars in one place globally
-          CONFIG="${{ env.km_dr_config }}"
+      - name: Draw keymaps
+        run: nix build .#keymap-drawer-svgs
 
-          for KEYMAP in ${{ env.keymap_path }}; do
-            KEYBOARD=$(basename -s .keymap "$KEYMAP")
-            OUTPUT="${{ env.output_folder }}/${KEYBOARD}.yaml"
-
-            # TODO consider running through `parallel`?
-            echo "Parsing keymap for $KEYBOARD"
-            keymap -c "$CONFIG" parse -z "$KEYMAP" > "$OUTPUT"
-          done
-
-      - name: Draw keymap for all layers
-        run: |
-          CONFIG="${{ env.km_dr_config }}"
-
-          # FIXME can glob false positeves, e.g. previous keymaps
-          for KEYMAP in ${{ env.output_folder }}/*.yaml; do
-            KEYBOARD=$(basename -s .yaml "$KEYMAP")
-            OUTPUT="${{ env.output_folder }}/${KEYBOARD}.svg"
-
-            echo "Drawing all layers for $KEYBOARD"
-            keymap -c "$CONFIG" draw "$KEYMAP" > "$OUTPUT"
-          done
-
-
-      - name: Draw seperate layer keymaps
-        run: |
-          # Ensure errors propagate when piping stdout
-          set -o pipefail
-
-          export CONFIG="${{ env.km_dr_config }}"
-
-          # Function to draw the given layer's keymap
-          draw() {
-            KEYMAP="$1"
-            LAYER="$2"
-            KEYBOARD=$(basename -s .yaml "$KEYMAP")
-            OUTPUT="${{ env.output_folder }}/${KEYBOARD}_${LAYER}.svg"
-
-            echo "Drawing $LAYER layer for $KEYBOARD"
-            keymap -c "$CONFIG" draw "$KEYMAP" -s "$LAYER" > "$OUTPUT"
-          }
-          export -f draw # Ensure the draw function can be called by `parallel`'s subprocess
-
-          # FIXME can glob false positeves, e.g. previous keymaps
-          for KEYMAP in ${{ env.output_folder }}/*.yaml; do
-            # Run `draw()` for each layer in the keymap. Up to 4 layers at a time...
-            echo "Drawing layers in parallel"
-            python3 .github/workflows/layers.py "$KEYMAP" \
-            | parallel --jobs 4 draw "$KEYMAP"
-          done
+      - name: Copy SVGs into repo
+        run: cp result/* img
 
+      # TODO print to $GITHUB_STEP_SUMMARY
       - name: Commit changes
         uses: stefanzweifel/git-auto-commit-action@v4
         with: