new(ci): add a zig build job plus a composite action to setup zig.

Signed-off-by: Federico Di Pierro <nierro92@gmail.com>

.github/actions/install-zig/action.yml

@@ -0,0 +1,47 @@
+name: 'install-zig'
+description: 'Install zig compiler and make it available in PATH.'
+
+inputs:
+ sudo:
+ description: 'Specify a sudo command. Put it empty when sudo is not available.'
+ required: false
+ default: 'sudo'
+
+outputs:
+ zig_path:
+ description: "Path of installed zig, automatically added to GITHUB_PATH"
+ value: ${{ steps.zig.outputs.zig-path }}
+
+runs:
+ using: "composite"
+ steps:
+ - name: Install zig
+ shell: bash
+ id: zig
+ env:
+ ZIG_VERSION: '0.14.0-dev.1588+2111f4c38'
+ run: |
+ curl -L -o zig.tar.xz https://ziglang.org/builds/zig-linux-$(uname -m)-${ZIG_VERSION}.tar.xz
+ tar -xvf zig.tar.xz
+
+ cat > zig-linux-$(uname -m)-${ZIG_VERSION}/zig-cc <<EOF
+ #!/bin/bash
+ exec zig cc -target $(uname -m)-linux-gnu.2.17 -mcpu=baseline "\$@"
+ EOF
+ chmod +x zig-linux-$(uname -m)-${ZIG_VERSION}/zig-cc
+
+ cat > zig-linux-$(uname -m)-${ZIG_VERSION}/zig-c++ <<EOF
+ #!/bin/bash
+ exec zig c++ -target $(uname -m)-linux-gnu.2.17 -mcpu=baseline "\$@"
+ EOF
+ chmod +x zig-linux-$(uname -m)-${ZIG_VERSION}/zig-c++
+
+ ${{ inputs.sudo }} mkdir -p /usr/local/zig/
+ ${{ inputs.sudo }} cp -R zig-linux-$(uname -m)-${ZIG_VERSION}/* /usr/local/zig/
+ echo "/usr/local/zig" >> $GITHUB_PATH
+ echo "CC=zig-cc" >> $GITHUB_ENV
+ echo "CXX=zig-c++" >> $GITHUB_ENV
+ echo "AR=zig ar" >> $GITHUB_ENV
+ echo "RANLIB=zig ranlib" >> $GITHUB_ENV
+ 
+ echo "zig-path=/usr/local/zig/zig-linux-$(uname -m)-${ZIG_VERSION}" >> $GITHUB_OUTPUT

.github/workflows/ci.yml

@@ -21,7 +21,7 @@ jobs:
  fail-fast: false
  matrix:
  arch: [amd64, arm64]
- name: [system_deps, bundled_deps, system_deps_minimal, sanitizers]
+ name: [system_deps, bundled_deps, system_deps_minimal, sanitizers, zig]
  include:
  - name: system_deps
  cmake_opts: -DBUILD_WARNINGS_AS_ERRORS=On -DBUILD_BPF=On -DUSE_BUNDLED_DEPS=False
@@ -31,6 +31,8 @@ jobs:
  cmake_opts: -DBUILD_WARNINGS_AS_ERRORS=On -DUSE_BUNDLED_DEPS=False -DMINIMAL_BUILD=True
  - name: sanitizers
  cmake_opts: -DUSE_ASAN=On -DUSE_UBSAN=On -DUSE_BUNDLED_DEPS=False
+ - name: zig
+ cmake_opts: -DUSE_BUNDLED_DEPS=True
  container:
  image: debian:buster
  steps:
@@ -60,13 +62,27 @@ jobs:
  git config --global --add safe.directory $GITHUB_WORKSPACE
 
  - name: Build and test 🏗️🧪
+ if: matrix.name != 'zig'
  env:
  UBSAN_OPTIONS: print_stacktrace=1
  run: |
  mkdir -p build
  cd build && cmake ${{ matrix.cmake_opts }} -DENABLE_THREAD_POOL=ON ../
  KERNELDIR=/lib/modules/$(ls /lib/modules)/build make -j4
  make run-unit-tests
+ 
+ - name: Install zig
+ if: matrix.name == 'zig'
+ uses: ./.github/actions/install-zig
+ with:
+ sudo: ''
+
+ - name: Build sinsp-example
+ if: matrix.name == 'zig'
+ run: |
+ mkdir -p build
+ cd build && cmake ${{ matrix.cmake_opts }} -DENABLE_THREAD_POOL=ON ../
+ make sinsp-example -j4
 
  build-libs-linux-amd64-static:
  name: build-libs-linux-amd64-static 🎃