From 90e5a7f137a489ca3c76e7d3b499890c4f7eddb1 Mon Sep 17 00:00:00 2001
From: Jason Dellaluce <jasondellaluce@gmail.com>
Date: Mon, 10 Jul 2023 16:51:30 +0000
Subject: [PATCH] refactor(ci): build and upload WASM packages

Signed-off-by: Jason Dellaluce <jasondellaluce@gmail.com>
---
 .github/workflows/ci.yml                      | 33 -----------
 .../workflows/reusable_build_packages.yaml    | 56 +++++++++++++++++++
 CMakeLists.txt                                |  6 +-
 cmake/modules/CPackConfig.cmake               |  6 +-
 4 files changed, 66 insertions(+), 35 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c7d489ad2d4..4a2e24461ee 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -33,39 +33,6 @@ jobs:
       static: ${{ matrix.static != '' && true || false }}
       version: ${{ needs.fetch-version.outputs.version }}
 
-  build-falco-emscripten:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v3
-        with:
-          fetch-depth: 0
-      
-      - name: Install deps
-        run: |
-          sudo apt update
-          sudo DEBIAN_FRONTEND=noninteractive apt install libjq-dev libelf-dev libyaml-cpp-dev cmake build-essential git emscripten -y
-
-      - name: Emscripten build
-        run: |
-          mkdir -p build
-          pushd build
-          emcmake cmake -DBUILD_FALCO_UNIT_TESTS=On ..
-          emmake make falco falco_unit_tests
-          popd
-      
-      - name: Select node version
-        uses: actions/setup-node@v3
-        with:
-          node-version: 14
-          
-          
-      - name: Run unit Tests
-        run: |
-          pushd build
-          node ./unit_tests/falco_unit_tests.js
-          popd
-
   build-dev:
     strategy:
       fail-fast: false
diff --git a/.github/workflows/reusable_build_packages.yaml b/.github/workflows/reusable_build_packages.yaml
index 9ff23a9a378..0f56d0cb561 100644
--- a/.github/workflows/reusable_build_packages.yaml
+++ b/.github/workflows/reusable_build_packages.yaml
@@ -158,3 +158,59 @@ jobs:
           name: falco-${{ inputs.version }}-static-x86_64.tar.gz
           path: |
             ${{ github.workspace }}/build/falco-${{ inputs.version }}-static-x86_64.tar.gz
+
+  build-wasm-package:
+    if: ${{ inputs.arch == 'x86_64' }}
+    runs-on: ubuntu-latest
+    steps:
+      # Always install deps before invoking checkout action, to properly perform a full clone.
+      - name: Install build dependencies
+        run: |
+          sudo apt update
+          sudo DEBIAN_FRONTEND=noninteractive apt install cmake build-essential git emscripten -y
+
+      - name: Select node version
+        uses: actions/setup-node@v3
+        with:
+          node-version: 14
+    
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+          
+      - name: Prepare project
+        run: |
+          mkdir build && cd build
+          emcmake cmake \
+            -DBUILD_BPF=Off \
+            -DBUILD_DRIVER=Off \
+            -DBUILD_LIBSCAP_MODERN_BPF=OFF \
+            -DCMAKE_BUILD_TYPE=Release \
+            -DUSE_BUNDLED_DEPS=On \
+            -DFALCO_ETC_DIR=/etc/falco \
+            -DBUILD_FALCO_UNIT_TESTS=On \
+            -DFALCO_VERSION=${{ inputs.version }} \
+            ..
+          
+      - name: Build project
+        run: |
+          cd build
+          emmake make -j6 all
+      
+      - name: Run unit Tests
+        run: |
+          cd build
+          node ./unit_tests/falco_unit_tests.js
+      
+      - name: Build packages
+        run: |
+          cd build
+          emmake make -j6 package
+          
+      - name: Upload Falco WASM package
+        uses: actions/upload-artifact@v3
+        with:
+          name: falco-${{ inputs.version }}-wasm.tar.gz
+          path: |
+            ${{ github.workspace }}/build/falco-${{ inputs.version }}-wasm.tar.gz
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a1707234e51..72ebfb949e8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -76,7 +76,11 @@ if(NOT DEFINED FALCO_ETC_DIR)
 endif()
 
 # This will be used to print the architecture for which Falco is compiled.
-set(FALCO_TARGET_ARCH ${CMAKE_SYSTEM_PROCESSOR})
+if (EMSCRIPTEN)
+  set(FALCO_TARGET_ARCH "wasm")
+else()
+  set(FALCO_TARGET_ARCH ${CMAKE_SYSTEM_PROCESSOR})
+endif()
 
 if(NOT FALCO_EXTRA_DEBUG_FLAGS)
   set(FALCO_EXTRA_DEBUG_FLAGS "-D_DEBUG")
diff --git a/cmake/modules/CPackConfig.cmake b/cmake/modules/CPackConfig.cmake
index 07a3de129a5..d444f7a10a3 100644
--- a/cmake/modules/CPackConfig.cmake
+++ b/cmake/modules/CPackConfig.cmake
@@ -20,10 +20,14 @@ set(CPACK_PACKAGE_VERSION "${FALCO_VERSION}")
 set(CPACK_PACKAGE_VERSION_MAJOR "${FALCO_VERSION_MAJOR}")
 set(CPACK_PACKAGE_VERSION_MINOR "${FALCO_VERSION_MINOR}")
 set(CPACK_PACKAGE_VERSION_PATCH "${FALCO_VERSION_PATCH}")
-set(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}-${CMAKE_SYSTEM_PROCESSOR}")
 set(CPACK_PROJECT_CONFIG_FILE "${PROJECT_SOURCE_DIR}/cmake/cpack/CMakeCPackOptions.cmake")
 set(CPACK_PACKAGE_RELOCATABLE "OFF")
 set(CPACK_STRIP_FILES "ON")
+if (EMSCRIPTEN)
+  set(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}-wasm")
+else()
+  set(CPACK_PACKAGE_FILE_NAME "${CPACK_PACKAGE_NAME}-${CPACK_PACKAGE_VERSION}-${CMAKE_SYSTEM_PROCESSOR}")
+endif()
 
 # Built packages will include only the following components
 set(CPACK_INSTALL_CMAKE_PROJECTS