Update workflow

.github/workflows/build-plugin.yml

@@ -2,75 +2,101 @@ name: Build VCV Rack Plugin
 on: [push, pull_request]
 
 env:
-  rack-sdk-version: 2.1.0
+  rack-sdk-version: 2.0.6
+  rack-plugin-toolchain-dir: /home/build/rack-plugin-toolchain
 
 defaults:
   run:
     shell: bash
 
 jobs:
+
+  modify-plugin-version:
+    name: Modify plugin version
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/cache@v2
+        id: plugin-version-cache
+        with:
+          path: plugin.json
+          key: ${{ github.sha }}-${{ github.run_id }}
+      - run: |
+          gitrev=`git rev-parse --short HEAD`
+          pluginversion=`jq -r '.version' plugin.json`
+          echo "Set plugin version from $pluginversion to $pluginversion-$gitrev"
+          cat <<< `jq --arg VERSION "$pluginversion-$gitrev" '.version=$VERSION' plugin.json` > plugin.json
+        # only modify plugin version if no tag was created
+        if: "! startsWith(github.ref, 'refs/tags/v')"
+
   build:
-    name: ${{ matrix.config.name }}
-    runs-on: ${{ matrix.config.os }}
+    name: ${{ matrix.platform }}
+    needs: modify-plugin-version
+    runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/qno/rack-plugin-toolchain-win-linux:v2
+      options: --user root
     strategy:
       matrix:
-        config:
-        - {
-            name: Linux,
-            sdk-platform: lin,
-            os: ubuntu-latest,
-            prepare-os: sudo apt update && sudo apt install -y libglu-dev
-          }
-        - {
-            name: MacOS,
-            sdk-platform: mac,
-            os: macos-latest,
-            prepare-os: ""
-          }
-        - {
-            name: Windows,
-            sdk-platform: win,
-            os: windows-latest,
-            prepare-os: export CC=gcc
-          }
+        platform: [win, linux]
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: recursive
+      - uses: actions/cache@v2
+        id: plugin-version-cache
+        with:
+          path: plugin.json
+          key: ${{ github.sha }}-${{ github.run_id }}
+      - name: Build plugin
+        run: |
+          export PLUGIN_DIR=$GITHUB_WORKSPACE
+          pushd ${{ env.rack-plugin-toolchain-dir }}
+          make plugin-build-${{ matrix.platform }}
+      - name: Upload artifact
+        uses: actions/upload-artifact@v2
+        with:
+          path: ${{ env.rack-plugin-toolchain-dir }}/plugin-build
+          name: ${{ matrix.platform }}
+
+  build-mac:
+    name: mac
+    needs: modify-plugin-version
+    runs-on: macos-10.15
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           submodules: recursive
+      - uses: actions/cache@v2
+        id: plugin-version-cache
+        with:
+          path: plugin.json
+          key: ${{ github.sha }}-${{ github.run_id }}
       - name: Get Rack-SDK
         run: |
           pushd $HOME
-          curl -o Rack-SDK.zip https://vcvrack.com/downloads/Rack-SDK-${{ env.rack-sdk-version }}-${{ matrix.config.sdk-platform }}.zip
+          curl -o Rack-SDK.zip https://vcvrack.com/downloads/Rack-SDK-${{ env.rack-sdk-version }}-mac.zip
           unzip Rack-SDK.zip
-      - name: Modify plugin version
-        # only modify plugin version if no tag was created
-        if: "! startsWith(github.ref, 'refs/tags/v')"
-        run: |
-          gitrev=`git rev-parse --short HEAD`
-          pluginversion=`jq -r '.version' plugin.json`
-          echo "Set plugin version from $pluginversion to $pluginversion-$gitrev"
-          cat <<< `jq --arg VERSION "$pluginversion-$gitrev" '.version=$VERSION' plugin.json` > plugin.json
       - name: Build plugin
         run: |
-          ${{ matrix.config.prepare-os }}
           export RACK_DIR=$HOME/Rack-SDK
           make -j dep
           make -j dist
       - name: Upload artifact
         uses: actions/upload-artifact@v2
         with:
           path: dist
-          name: ${{ matrix.config.name }}
+          name: mac
 
   publish:
     name: Publish plugin
     # only create a release if a tag was created that is called e.g. v1.2.3
     # see also https://vcvrack.com/manual/Manifest#version
     if: startsWith(github.ref, 'refs/tags/v')
     runs-on: ubuntu-latest
-    needs: build
+    needs:  [build, build-mac]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: FranzDiebold/[email protected]
       - name: Check if plugin version matches tag
         run: |