.github/workflows/main.yml

@@ -0,0 +1,46 @@
+name: CI
+on: [push, pull_request]
+
+jobs:
+  build:
+    name: Build
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+          - macos-latest
+          # llvm 9 build is broken on windows for now. Re-enable this when it is fixed:
+          # - windows-latest
+    steps:
+      - uses: actions/checkout@master
+        with:
+          submodules: true
+      - run: |
+          # Windows releases of LLVM don't include the llvm-nm tool, which is needed for building
+          # wasi-libc. Rust's llvm-tools include llvm-nm, and Rust is installed on Azure's Windows
+          # images, so we can use that to make llvm-nm available without too much overhead.
+          rustup update stable
+          rustup default stable
+          rustup component add llvm-tools-preview
+          echo "::set-env name=WASM_NM::$(rustc --print sysroot|sed 's|C:|/c|'|sed 's|\\|/|g')/lib/rustlib/x86_64-pc-windows-msvc/bin/llvm-nm.exe"
+        shell: bash
+        name: Install llvm-nm (Windows)
+        if: matrix.os == 'windows-latest'
+      - run: choco install ninja
+        name: Install Ninja (Windows)
+        if: matrix.os == 'windows-latest'
+      - run: brew install ninja
+        name: Install Ninja (macOS)
+        if: matrix.os == 'macos-latest'
+      - run: sudo apt install ninja-build
+        name: Install Ninja (Linux)
+        if: matrix.os == 'ubuntu-latest'
+      - run: sudo make -j4 package
+        shell: bash
+        name: Build
+      - uses: actions/upload-artifact@v1
+        with:
+          name: ${{ format( 'packages-{0}.tgz', matrix.os) }}
+          path: dist

Makefile

@@ -149,11 +149,11 @@ build: build/llvm.BUILT build/wasi-libc.BUILT build/compiler-rt.BUILT build/libc
 strip: build/llvm.BUILT
 	cd $(PREFIX)/bin; strip clang-9 lld llvm-ar
 
-package: build/package.BUILT
+package: dist
 
-build/package.BUILT: build strip
-	command -v dpkg-deb >/dev/null && ./deb_from_installation.sh || true
-	./tar_from_installation.sh
-	touch build/package.BUILT
+dist: build strip
+	mkdir -p dist
+	command -v dpkg-deb >/dev/null && ./deb_from_installation.sh $(shell pwd)/dist || true
+	./tar_from_installation.sh $(shell pwd)/dist
 
 .PHONY: default clean build strip package

deb_from_installation.sh

@@ -1,9 +1,15 @@
 #!/usr/bin/env sh
 set -ex
 if [ -n "$1" ]; then
-	export VERSION="$1"
+    OUTDIR=$1
 else
-	export VERSION=`./version.sh`
+    OUTDIR=$PWD/build
+fi
+
+if [ -n "$2" ]; then
+    VERSION="$2"
+else
+    VERSION=`./version.sh`
 fi
 
 rm -rf build/pkg
@@ -12,3 +18,4 @@ mkdir -p build/pkg/DEBIAN
 sed -e s/VERSION/$VERSION/ wasi-sdk.control > build/pkg/DEBIAN/control
 cp -R /opt/wasi-sdk build/pkg/opt/
 cd build && dpkg-deb -b pkg wasi-sdk_$VERSION\_amd64.deb
+mv build/wasi-sdk_$VERSION\amd64.deb $OUTDIR/

tar_from_installation.sh

@@ -1,7 +1,13 @@
 #!/usr/bin/env bash
 set -ex
 if [ -n "$1" ]; then
-    VERSION="$1"
+    OUTDIR=$1
+else
+    OUTDIR=$PWD/build
+fi
+
+if [ -n "$2" ]; then
+    VERSION="$2"
 else
     VERSION=`./version.sh`
 fi
@@ -19,10 +25,10 @@ esac
 rm -rf $PKGDIR
 cp -R /opt/wasi-sdk $PKGDIR
 cd build
-tar czf wasi-sdk-$VERSION\-$MACHINE.tar.gz wasi-sdk-$VERSION
+tar czf $OUTDIR/wasi-sdk-$VERSION\-$MACHINE.tar.gz wasi-sdk-$VERSION
 
 # As well as the full SDK package, also create archives of libclang_rt.builtins
 # and the sysroot. These are made available for users who have an existing clang
 # installation.
-tar czf libclang_rt.builtins-wasm32-wasi-$VERSION.tar.gz -C compiler-rt lib/wasi
-tar czf wasi-sysroot-$VERSION.tar.gz -C wasi-sdk-$VERSION/share wasi-sysroot
+tar czf $OUTDIR/libclang_rt.builtins-wasm32-wasi-$VERSION.tar.gz -C compiler-rt lib/wasi
+tar czf $OUTDIR/wasi-sysroot-$VERSION.tar.gz -C wasi-sdk-$VERSION/share wasi-sysroot