ci: Add Linux binary and .deb build workflows

.github/workflows/build-linux.yml

@@ -0,0 +1,105 @@
+name: Build Linux
+
+on:
+  # manually trigger the workflow from the Actions tab
+  workflow_dispatch:
+  # validate the Linux packaging when its scripts change
+  pull_request:
+    paths:
+      - 'client/cmd/bisonw-desktop/linux/**'
+      - '.github/workflows/build-linux.yml'
+
+permissions:
+  contents: read
+
+jobs:
+  build-binary:
+    name: Native build (binary)
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out source
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 #v6.0.0
+        with:
+          fetch-depth: 0
+          fetch-tags: true
+
+      - name: Install deb deps
+        uses: awalsh128/cache-apt-pkgs-action@acb598e5ddbc6f68a970c5da0688d2f3a9f04d05 #v1.6.0
+        with:
+          packages: libgtk-3-dev libwebkit2gtk-4.1-dev build-essential
+          version: 1.0
+
+      - name: Set up Go
+        uses: actions/setup-go@4dc6199c7b1a012772edbd06daecab0f50c9053c #v6.1.0
+        with:
+          go-version: '1.24'
+          cache-dependency-path: |
+            go.sum
+            client/cmd/bisonw-desktop/go.sum
+
+      - name: Set up Node
+        uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 #v5.0.0
+        with:
+          node-version: 22
+
+      - name: Build site bundle
+        working-directory: client/webserver/site
+        run: |
+          npm clean-install
+          npm run build
+
+      - name: Build binary
+        working-directory: client/cmd/bisonw-desktop
+        run: |
+          source linux/common.sh
+          mkdir -p build/linux
+          LDFLAGS="-s -w -X main.Version=${VER}${META:++${META}}"
+          GOOS=linux GOARCH=${ARCH} go build -o build/linux/bisonw-desktop -ldflags "$LDFLAGS"
+
+      - name: Upload binary
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 #v4.6.2
+        with:
+          name: bisonw-desktop-linux-bin
+          if-no-files-found: error
+          path: client/cmd/bisonw-desktop/build/linux/bisonw-desktop
+
+  build-deb:
+    name: Debian package (.deb)
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out source
+        uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 #v6.0.0
+        with:
+          fetch-depth: 0
+          fetch-tags: true
+
+      - name: Install deb deps
+        uses: awalsh128/cache-apt-pkgs-action@acb598e5ddbc6f68a970c5da0688d2f3a9f04d05 #v1.6.0
+        with:
+          packages: libgtk-3-dev libwebkit2gtk-4.1-dev build-essential
+          version: 1.0
+
+      - name: Set up Go
+        uses: actions/setup-go@4dc6199c7b1a012772edbd06daecab0f50c9053c #v6.1.0
+        with:
+          go-version: '1.24'
+          cache-dependency-path: |
+            go.sum
+            client/cmd/bisonw-desktop/go.sum
+
+      - name: Set up Node
+        uses: actions/setup-node@a0853c24544627f65ddf259abe73b1d18a591444 #v5.0.0
+        with:
+          node-version: 22
+
+      # pkg-debian.sh builds the site bundle itself before compiling.
+      - name: Build deb package
+        working-directory: client/cmd/bisonw-desktop
+        run: linux/pkg-debian.sh
+
+      - name: Upload deb
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 #v4.6.2
+        with:
+          name: bisonw-desktop-linux-deb
+          if-no-files-found: error
+          path: client/cmd/bisonw-desktop/build/*.deb

.github/workflows/build-snap.yml

@@ -27,11 +27,11 @@ jobs:
 
         - name: Build deb package
           working-directory: client/cmd/bisonw-desktop
-          run: pkg/pkg-debian.sh
+          run: linux/pkg-debian.sh
 
         - name: Prepare snapcraft.yml
           working-directory: client/cmd/bisonw-desktop
-          run: pkg/prepare-snap.sh
+          run: linux/prepare-snap.sh
 
         - name: Build snap package
           uses: snapcore/action-build@3bdaa03e1ba6bf59a65f84a751d943d549a54e79 # v1.3.0