Run packaging scripts and smoke test on CI (#15)

Any changes in this repository should be tested with the packaging script and a basic smoke test that compiles `hello.swift` on CI.

In the future packaging and linking scripts should be moved to this repository, `swiftwasm-sdk` and `swiftwasm-package-sdk` projects probably would be archived when that happens. For now we're pulling the scripts from `swiftwasm-package-sdk` as it is.

* Run packaging scripts and smoke test on CI

* Make prepare-package.sh executable

* Make SymbolLookup.swift compilable for wasm

* Use GitHub Actions upload/download steps

* Remove packaging steps from ci-*.sh

* Move prepare-package.sh to main.yml to avoid clone

* Refine formatting in .github/workflows/main.yml

Author: MaxDesiatov

.github/workflows/main.yml

@@ -15,14 +15,56 @@ jobs:
 
     steps:
     - uses: actions/checkout@v1
-    - name: Run a multi-line script
+    - name: Build Linux installable archive
       run: ./ci-linux.sh
+    - name: Upload Linux installable archive
+      uses: actions/upload-artifact@v1
+      with:
+        name: linux-installable
+        path: ../swiftwasm-linux.tar.gz
 
   macos_build:
     timeout-minutes: 0
     runs-on: macOS-10.14
 
     steps:
     - uses: actions/checkout@v1
-    - name: Run a multi-line script
+    - name: Build macOS installable archive
       run: ./ci-mac.sh
+    - name: Upload macOS installable archive
+      uses: actions/upload-artifact@v1
+      with:
+        name: macos-installable
+        path: ../swiftwasm-mac.tar.gz
+
+  package:
+    name: Build SwiftWasm packages
+    needs:
+    - linux_build
+    - macos_build
+    runs-on: ubuntu-18.04
+    steps:
+      - name: Download installable Linux archive
+        uses: actions/download-artifact@v1
+        with:
+          name: linux-installable
+      - name: Download installable macOS archive
+        uses: actions/download-artifact@v1
+        with:
+          name: macos-installable
+      - name: Build the packages
+        shell: bash
+        run: |
+          git clone https://github.com/swiftwasm/swiftwasm-package-sdk.git
+          cd swiftwasm-package-sdk
+          ./download-prebuilts.sh
+
+          cp ../linux-installable/swiftwasm-linux.tar.gz prebuilt/swiftwasm.tar.gz
+          cp ../macos-installable/swiftwasm-mac.tar.gz prebuilt/swiftwasm-mac.tar.gz
+          ./build-packages.sh
+
+          cd output
+          tar xf swiftwasm-sdk-linux.tar.xz
+
+          cd swiftwasm-sdk
+          ./swiftwasm example/hello.swift hello.wasm

build-linux.sh

@@ -16,7 +16,7 @@ export sourcedir=$PWD/..
   --install-destdir="$sourcedir/install" \
   --install-prefix="/opt/swiftwasm-sdk" \
   --install-swift \
-  --installable-package="$sourcedir/swiftwasm.tar.gz" \
+  --installable-package="$sourcedir/swiftwasm-linux.tar.gz" \
   --llvm-targets-to-build "X86;WebAssembly" \
   --stdlib-deployment-targets "wasm-wasm32" \
   --wasm-icu-data "todo-icu-data" \