Add clap validation

Author: olilarkin

.github/workflows/build-mac.yml

@@ -14,6 +14,7 @@ env:
   ARTIFACT_EXT: mac
   PLUGINVAL_VER: v1.0.4
   VST3_VER: v3.8.0_build_66
+  CLAP_VALIDATOR_VER: "0.3.2"
 
 jobs:
   build-mac:
@@ -130,12 +131,36 @@ jobs:
             iPlug2/Dependencies/IPlug/VST3_SDK
           key: ${{runner.os}}-vst3-${{env.VST3_VER}}
 
+      - name: Cache CLAP Validator
+        id: cache-clap-validator
+        uses: actions/cache@v3
+        with:
+          path: |
+            ./clap-validator
+          key: ${{runner.os}}-clap-validator-${{env.CLAP_VALIDATOR_VER}}
+
+      - name: Get CLAP Validator
+        if: steps.cache-clap-validator.outputs.cache-hit != 'true'
+        shell: bash
+        run: |
+          set -eo pipefail
+          curl -fL "https://github.com/free-audio/clap-validator/releases/download/${{env.CLAP_VALIDATOR_VER}}/clap-validator-${{env.CLAP_VALIDATOR_VER}}-macos-universal.tar.gz" -o clap-validator.tar.gz
+          tar -xzf clap-validator.tar.gz
+          mv binaries/clap-validator ./clap-validator
+          rm -rf binaries clap-validator.tar.gz
+
       - name: Test VST3 with VST3 Validator
         shell: bash
         run: |
           set -eo pipefail
           ./iPlug2/Dependencies/IPlug/VST3_SDK/validator ${{env.PROJECT_NAME}}.vst3
 
+      - name: Test CLAP with CLAP Validator
+        shell: bash
+        run: |
+          set -eo pipefail
+          ./clap-validator validate ./${{env.PROJECT_NAME}}.clap
+
       - name: Test VST3 with Pluginval
         shell: bash
         run: |