Ely Office: six offline-first desktop apps in Rust and GPUI

ElyDoc, ElyTable, ElyShow (LibreOfficeKit), ElyPDF (MuPDF), ElyTree (Git),
ElyMark (Milkdown and CodeMirror in CEF). ElyMail and ElyAgent follow.

.github/workflows/engines.yml

@@ -0,0 +1,77 @@
+# Builds the patched engines once; release.yml downloads them.
+name: engines
+
+on:
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+jobs:
+  macos:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - runner: macos-15
+            arch: arm64
+          - runner: macos-15-intel
+            arch: x86_64
+    runs-on: ${{ matrix.runner }}
+    timeout-minutes: 355
+    env:
+      GH_TOKEN: ${{ github.token }}
+      CCACHE_DIR: ${{ github.workspace }}/.ccache
+      CCACHE_MAXSIZE: 6G
+    steps:
+      - uses: actions/checkout@v4
+      - name: Key
+        id: key
+        run: echo "key=$(scripts/engines-key.sh)" >> "$GITHUB_OUTPUT"
+      - name: Already built?
+        id: done
+        run: |
+          if gh release view "engines-${{ steps.key.outputs.key }}" --json assets \
+              --jq '.assets[].name' 2>/dev/null | grep -qx "engines-macos-${{ matrix.arch }}.tar.zst"; then
+            echo "built=true" >> "$GITHUB_OUTPUT"
+          fi
+      - name: Tools
+        if: steps.done.outputs.built != 'true'
+        run: brew install make gnu-sed bison flex gettext autoconf automake libtool ccache nasm zstd
+      - name: Compiler cache
+        if: steps.done.outputs.built != 'true'
+        uses: actions/cache/restore@v4
+        with:
+          path: .ccache
+          key: ccache-macos-${{ matrix.arch }}-${{ steps.key.outputs.key }}-${{ github.run_id }}
+          restore-keys: ccache-macos-${{ matrix.arch }}-
+      - name: Upstream sources
+        if: steps.done.outputs.built != 'true'
+        run: scripts/fetch-references.sh
+      - name: LibreOffice (patched)
+        if: steps.done.outputs.built != 'true'
+        run: scripts/build-libreoffice.sh
+      - name: MuPDF (patched), Git, git-lfs, OCR data, CEF
+        if: steps.done.outputs.built != 'true'
+        run: |
+          scripts/build-mupdf.sh
+          scripts/build-git.sh
+          scripts/fetch-git-lfs.sh
+          scripts/fetch-tessdata.sh
+          scripts/fetch-cef.sh
+      - name: Keep the compiler cache, even after a timeout
+        if: always() && steps.done.outputs.built != 'true'
+        uses: actions/cache/save@v4
+        with:
+          path: .ccache
+          key: ccache-macos-${{ matrix.arch }}-${{ steps.key.outputs.key }}-${{ github.run_id }}
+      - name: Publish
+        if: steps.done.outputs.built != 'true'
+        run: |
+          archive=engines-macos-${{ matrix.arch }}.tar.zst
+          tar -C engines -cf - lo-src/instdir mupdf-build mupdf-src git git-src/COPYING git-src/LGPL-2.1 cef tessdata |
+            zstd -19 -T0 -o "$archive"
+          tag=engines-${{ steps.key.outputs.key }}
+          gh release view "$tag" >/dev/null 2>&1 ||
+            gh release create "$tag" --prerelease --title "$tag" --notes "Pinned, patched engines; built by engines.yml."
+          gh release upload "$tag" "$archive" --clobber

.github/workflows/release.yml

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+# On a version tag: macOS apps attached to its release.
+name: release
+
+on:
+  push:
+    tags: ["v*"]
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+jobs:
+  macos:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - runner: macos-15
+            arch: arm64
+          - runner: macos-15-intel
+            arch: x86_64
+    runs-on: ${{ matrix.runner }}
+    timeout-minutes: 120
+    env:
+      GH_TOKEN: ${{ github.token }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Engines
+        run: |
+          brew install zstd
+          tag=engines-$(scripts/engines-key.sh)
+          gh release download "$tag" --pattern "engines-macos-${{ matrix.arch }}.tar.zst" ||
+            { echo "::error::no $tag for ${{ matrix.arch }}; run the engines workflow first"; exit 1; }
+          mkdir -p engines
+          zstd -dc "engines-macos-${{ matrix.arch }}.tar.zst" | tar -C engines -xf -
+      - name: Upstream sources and ElyMark's page
+        run: |
+          scripts/fetch-references.sh
+          scripts/build-mark-content.sh
+      - name: Tests that need no window
+        run: |
+          tests/scripts/types.sh
+          tests/scripts/icons.sh
+          python3 tests/scripts/comments.py
+      - name: Packages
+        run: packaging/macos/release.sh 1
+      - name: Attach to the release
+        if: startsWith(github.ref, 'refs/tags/')
+        run: |
+          version=${GITHUB_REF_NAME}
+          gh release view "$version" >/dev/null 2>&1 || gh release create "$version" --title "Ely Office $version" --notes "Built by release.yml."
+          gh release upload "$version" dist/*.dmg --clobber
+          if [ "${{ matrix.arch }}" = arm64 ]; then
+            gh release upload "$version" dist/ElyOffice-*-source.tar.gz dist/ElyOffice-*-upstream-source.tar.gz --clobber
+          fi