Upload releases to Steam (#17)

(Based heavily on Open Brush, naturally)

.github/workflows/build.yml

@@ -483,3 +483,59 @@ jobs:
           target_commitish: ${{ needs.configuration.outputs.currentrelease }}
           tag_name: ${{ needs.configuration.outputs.version }}
           files: releases/*
+
+  publish_steam:
+    name: Publish Steam Release
+    needs: [build]
+    if: |
+      github.event_name == 'push' &&
+      github.repository == 'icosa-foundation/open-blocks' &&
+      (github.ref == 'refs/heads/main' || contains(github.ref, 'refs/tags/v'))
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          sparse-checkout: |
+            Support/steam
+          lfs: true  # We don't use LFS, but it adds no time, and leave it here in case we do at some point later
+      - name: Setup steamcmd
+        uses: CyberAndrii/[email protected]
+      - name: Restore steam login config
+        run: |
+          mkdir -p /home/runner/Steam/config
+          echo "${{ secrets.STEAM_CONFIG_VDF}}" | base64 -d - > /home/runner/Steam/config/config.vdf
+          md5sum /home/runner/Steam/config/config.vdf
+      - name: Download Build Artifacts (Windows)
+        uses: actions/download-artifact@v4
+        with:
+          name: Windows
+          path: build_windows
+      - name: Upload Build
+        run: |
+          pip install -U jinjanator
+          jinjanate Support/steam/app.vdf.j2 > app.vdf
+          jinjanate Support/steam/main_depot.win.vdf.j2 > build_windows/main_depot.vdf
+          #jinjanate Support/steam/installscript_win.vdf.j2 > build_windows_openxr/installscript_win.vdf
+          steamcmd +login $STEAM_USERNAME +run_app_build $(pwd)/app.vdf +quit
+        env:
+          STEAM_USERNAME: ${{ vars.STEAM_USERNAME }}
+          STEAM_PASSWORD: ${{ secrets.STEAM_PASSWORD }}
+          VERSION: ${{ needs.configuration.outputs.version }}
+          OPEN_BLOCKS_APP_ID: ${{ vars.STEAM_APP_ID }}
+          OPEN_BLOCKS_WINDOWS_DEPOT_ID: ${{ vars.STEAM_WINDOWS_DEPOT_ID }}
+          OPEN_BLOCKS_WINDOWS_EXECUTABLE: ${{ needs.configuration.outputs.basename}}.exe
+          CHANNEL: beta
+      - name: Update steam login secret
+        run: |
+          base64 -i /home/runner/Steam/config/config.vdf | gh secret set --visibility all --org icosa-foundation STEAM_CONFIG_VDF
+          md5sum /home/runner/Steam/config/config.vdf
+        env:
+          GITHUB_TOKEN: ${{ secrets.SECRET_UPDATER_PAT }}
+      - name: Save logs
+        uses: actions/upload-artifact@v4
+        if: ${{ failure() }}
+        with:
+          name: steamcmd logs
+          path: build_output/

Support/steam/app.vdf.j2

@@ -0,0 +1,14 @@
+"appbuild"
+{
+    "appid"        "{{ OPEN_BLOCKS_APP_ID }}"
+    "Desc"         "{{ VERSION }}"
+    "buildoutput"  "build_output/{{ CHANNEL }}" // Path for steamcmd logs
+    "contentroot"  "." // This file will be copied into the root of the release
+    "setlive"      "{{ CHANNEL }}"
+    "preview"      "0" // For local testing, set this to 1
+    "local"        "" // Not relevant; this is for a custom CDN
+    "depots"
+    {
+        "{{ OPEN_BLOCKS_WINDOWS_DEPOT_ID }}" build_windows/main_depot.vdf
+    }
+}

Support/steam/main_depot.win.vdf.j2

@@ -0,0 +1,32 @@
+"DepotBuildConfig"
+{
+    // # Set your assigned depot ID here
+    "DepotID" "{{ OPEN_BLOCKS_WINDOWS_DEPOT_ID }}"
+
+    "ContentRoot" "build_windows/StandaloneWindows64"
+
+    "FileMapping"
+    {
+        // Include all files in the build output directory (ContentRoot)
+        "LocalPath" "*"
+
+        // Destination is the main install directory
+        "DepotPath" "."
+
+        // If LocalPath contains wildcards, setting this means that all
+        // matching files within subdirectories of LocalPath will also
+        // be included.
+        "recursive" "1"
+    }
+
+    // Install scripts
+    //"FileMapping" {
+    //  "LocalPath" "../installscript_win.vdf"
+    //  "DepotPath" "."
+    //}
+    //"InstallScript" "../installscript_win.vdf"
+
+    // but exclude all symbol files
+    "FileExclusion" "*.pdb"
+    "FileExclusion" "build_log.txt"
+}