Initial release

.github/workflows/build_linux_appimage.yml

@@ -0,0 +1,120 @@
+name: Build Linux AppImage
+
+on:
+  workflow_call:
+  workflow_dispatch:
+
+concurrency:
+  group: build-linux-appimage-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  CACHE_REV: v1
+
+jobs:
+  linux_appimage_ubuntu24:
+    name: Linux AppImage (ubuntu-24.04)
+    runs-on: ubuntu-24.04
+    timeout-minutes: 360
+    env:
+      DIST_ID: ubuntu24.04
+      EVENT_TAG: ${{ github.event.release.tag_name }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v6
+        with:
+          lfs: 'false'
+
+      - uses: lukka/get-cmake@latest
+        with:
+          cmakeVersion: "~4.3.0"
+          useLocalCache: true
+          useCloudCache: true
+
+      - name: Compute version
+        shell: bash
+        run: |
+          set -euo pipefail
+          tag="${EVENT_TAG:-${GITHUB_REF_NAME:-}}"
+          if [[ "$tag" == v* ]]; then
+            ver="${tag#v}"
+          else
+            ver="git${GITHUB_SHA::7}"
+          fi
+          echo "VER=$ver" >> "$GITHUB_ENV"
+
+      - name: Compute deps cache key
+        shell: bash
+        run: |
+          set -euo pipefail
+          deps_tree="$(git rev-parse HEAD:deps 2>/dev/null || echo no-deps)"
+          recipe_hash="$(find build_linux.sh scripts/linux.d -type f -print0 | sort -z | xargs -0 cat | sha256sum | cut -c1-12)"
+          echo "DEPS_CACHE_KEY=linux-${DIST_ID}-deps-${deps_tree}-${recipe_hash}-${CACHE_REV}" >> "$GITHUB_ENV"
+
+      - name: Apt-Install Dependencies
+        uses: ./.github/actions/apt-install-deps
+
+      - name: Linux - cache deps
+        id: cache_linux_deps
+        uses: actions/cache@v5
+        with:
+          path: ${{ github.workspace }}/deps/build/OrcaSlicer_dep
+          key: ${{ env.DEPS_CACHE_KEY }}
+
+      - name: Linux - build deps if missing
+        if: steps.cache_linux_deps.outputs.cache-hit != 'true'
+        shell: bash
+        run: |
+          set -euo pipefail
+          for attempt in 1 2 3; do
+            echo "Build Linux deps attempt $attempt"
+            if ./build_linux.sh -drlL; then
+              exit 0
+            fi
+            if [ "$attempt" -lt 3 ]; then
+              echo "Transient dependency download/build failure, retrying after backoff"
+              sleep $((attempt * 20))
+            fi
+          done
+          exit 1
+
+      - name: Linux - build AppImage
+        shell: bash
+        run: |
+          set -euo pipefail
+          rm -rf build build-dbg build-dbginfo out
+          mkdir -p out
+
+          ./build_linux.sh -istrlL
+          ./scripts/check_appimage_libs.sh ./build/package ./build/package/bin/orca-slicer
+
+          mapfile -t appimages < <(find build -maxdepth 3 -type f -name '*.AppImage' ! -name 'appimagetool.AppImage' | LC_ALL=C sort)
+
+          if (( ${#appimages[@]} == 0 )); then
+            echo "ERROR: AppImage not produced"
+            find build -maxdepth 3 -type f | LC_ALL=C sort
+            exit 1
+          fi
+
+          if (( ${#appimages[@]} > 1 )); then
+            echo "INFO: multiple AppImage candidates found, using the first sorted entry"
+            printf '%s\n' "${appimages[@]}"
+          fi
+
+          appimage="${appimages[0]}"
+          mv "$appimage" "out/OrcaSlicer-BMCU_Linux_AppImage_${DIST_ID}_amd64_${VER}.AppImage"
+          chmod +x "out/OrcaSlicer-BMCU_Linux_AppImage_${DIST_ID}_amd64_${VER}.AppImage"
+
+      - name: Linux - checksums
+        shell: bash
+        run: |
+          set -euo pipefail
+          (cd out && sha256sum * > "SHA256SUMS_${DIST_ID}_appimage.txt")
+
+      - name: Upload artifacts (Linux AppImage ubuntu24.04)
+        uses: actions/upload-artifact@v7
+        with:
+          name: orcaslicer-bmcu-linux-appimage-${{ env.DIST_ID }}-${{ github.sha }}
+          path: out/
+          if-no-files-found: error