github: Add GitHub Actions workflow.

This is an initial version of GitHub Actions support.  It mostly
mimics our current Travis CI build matrix with slight differences.

The main issue is that we don't have ARM support here.

Minor difference that we can not install 32-bit versions of libunwind
and libunbound since those are not avaialble in repository.

Higher concurrency level allows to finish all tests less than in 20
minutes.  Which is 3 times faster than in Travis.

.travis folder renamed to .ci to highlight that it used not only for
Travis CI.  Travis CI support will be reduced to only test ARM builds
soon and will be completely removed when travis-ci.org will be turned
into read-only mode.

What happened to Travis CI:
https://mail.openvswitch.org/pipermail/ovs-dev/2020-November/377773.html

Acked-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>

1 files changed, 203 insertions, 0 deletions

diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
new file mode 100644
index 000000000..847fd3150
--- /dev/null
+++ b/.github/workflows/build-and-test.yml
@@ -0,0 +1,203 @@
+name: Build and Test
+
+on: [push, pull_request]
+
+jobs:
+  build-linux:
+    env:
+      dependencies: |
+        automake libtool gcc bc libjemalloc1 libjemalloc-dev    \
+        libssl-dev llvm-dev libelf-dev libnuma-dev libpcap-dev  \
+        python3-openssl python3-pip python3-sphinx              \
+        selinux-policy-dev
+      deb_dependencies: |
+        linux-headers-$(uname -r) build-essential fakeroot devscripts equivs
+      AFXDP:       ${{ matrix.afxdp }}
+      CC:          ${{ matrix.compiler }}
+      DEB_PACKAGE: ${{ matrix.deb_package }}
+      DPDK:        ${{ matrix.dpdk }}
+      DPDK_SHARED: ${{ matrix.dpdk_shared }}
+      KERNEL:      ${{ matrix.kernel }}
+      KERNEL_LIST: ${{ matrix.kernel_list }}
+      LIBS:        ${{ matrix.libs }}
+      M32:         ${{ matrix.m32 }}
+      OPTS:        ${{ matrix.opts }}
+      TESTSUITE:   ${{ matrix.testsuite }}
+
+    name: linux ${{ join(matrix.*, ' ') }}
+    runs-on: ubuntu-18.04
+    timeout-minutes: 30
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - compiler:     gcc
+            opts:         --disable-ssl
+          - compiler:     clang
+            opts:         --disable-ssl
+
+          - compiler:     gcc
+            testsuite:    test
+            kernel:       3.16
+          - compiler:     clang
+            testsuite:    test
+            kernel:       3.16
+
+          - compiler:     gcc
+            testsuite:    test
+            opts:         --enable-shared
+          - compiler:     clang
+            testsuite:    test
+            opts:         --enable-shared
+
+          - compiler:     gcc
+            testsuite:    test
+            dpdk:         dpdk
+          - compiler:     clang
+            testsuite:    test
+            dpdk:         dpdk
+
+          - compiler:     gcc
+            testsuite:    test
+            libs:         -ljemalloc
+          - compiler:     clang
+            testsuite:    test
+            libs:         -ljemalloc
+
+          - compiler:     gcc
+            kernel_list:  5.8 5.5 5.4 4.19
+          - compiler:     clang
+            kernel_list:  5.8 5.5 5.4 4.19
+
+          - compiler:     gcc
+            kernel_list:  4.14 4.9 4.4 3.16
+          - compiler:     clang
+            kernel_list:  4.14 4.9 4.4 3.16
+
+          - compiler:     gcc
+            afxdp:        afxdp
+            kernel:       5.3
+          - compiler:     clang
+            afxdp:        afxdp
+            kernel:       5.3
+
+          - compiler:     gcc
+            dpdk:         dpdk
+            opts:         --enable-shared
+          - compiler:     clang
+            dpdk:         dpdk
+            opts:         --enable-shared
+
+          - compiler:     gcc
+            dpdk_shared:  dpdk-shared
+          - compiler:     clang
+            dpdk_shared:  dpdk-shared
+
+          - compiler:     gcc
+            dpdk_shared:  dpdk-shared
+            opts:         --enable-shared
+          - compiler:     clang
+            dpdk_shared:  dpdk-shared
+            opts:         --enable-shared
+
+          - compiler:     gcc
+            m32:          m32
+            opts:         --disable-ssl
+
+          - compiler:     gcc
+            deb_package:  deb
+
+    steps:
+    - name: checkout
+      uses: actions/checkout@v2
+
+    - name: create ci signature file for the dpdk cache key
+      if:   matrix.dpdk != '' || matrix.dpdk_shared != ''
+      # This will collect most of DPDK related lines, so hash will be different
+      # if something changed in a way we're building DPDK including DPDK_VER.
+      # This also allows us to use cache from any branch as long as version
+      # and a way we're building DPDK stays the same.
+      run:  |
+        grep -irE 'RTE_|DPDK|meson|ninja' -r .ci/ > dpdk-ci-signature
+        cat dpdk-ci-signature
+
+    - name: cache
+      if:   matrix.dpdk != '' || matrix.dpdk_shared != ''
+      uses: actions/cache@v2
+      env:
+        matrix_key: ${{ matrix.dpdk }}${{ matrix.dpdk_shared }}
+        ci_key:     ${{ hashFiles('dpdk-ci-signature') }}
+      with:
+        path: dpdk-dir
+        key:  ${{ env.matrix_key }}-${{ env.ci_key }}
+
+    - name: install common dependencies
+      if:   matrix.deb_package == ''
+      run:  sudo apt install -y ${{ env.dependencies }}
+    - name: install dependencies for debian packages
+      if:   matrix.deb_package != ''
+      run:  sudo apt install -y ${{ env.deb_dependencies }}
+    - name: install libunbound libunwind
+      if:   matrix.m32 == ''
+      run:  sudo apt install -y libunbound-dev libunwind-dev
+
+    - name: prepare
+      run:  ./.ci/linux-prepare.sh
+
+    - name: build
+      run:  PATH="$PATH:$HOME/bin" ./.ci/linux-build.sh
+
+    - name: upload deb packages
+      if:   matrix.deb_package != ''
+      uses: actions/upload-artifact@v2
+      with:
+        name: deb-packages
+        path: '/home/runner/work/ovs/*.deb'
+
+    - name: copy logs on failure
+      if: failure() || cancelled()
+      run: |
+        # upload-artifact@v2 throws exceptions if it tries to upload socket
+        # files and we could have some socket files in testsuite.dir.
+        # Also, upload-artifact@v2 doesn't work well enough with wildcards.
+        # So, we're just archiving everything here to avoid any issues.
+        mkdir logs
+        cp config.log ./logs/
+        cp -r ./*/_build/sub/tests/testsuite.* ./logs/ || true
+        tar -czvf logs.tgz logs/
+
+    - name: upload logs on failure
+      if: failure() || cancelled()
+      uses: actions/upload-artifact@v2
+      with:
+        name: logs-linux-${{ join(matrix.*, '-') }}
+        path: logs.tgz
+
+  build-osx:
+    env:
+      CC:    clang
+      OPTS:  --disable-ssl
+
+    name:    osx clang --disable-ssl
+    runs-on: macos-latest
+    timeout-minutes: 30
+
+    strategy:
+      fail-fast: false
+
+    steps:
+    - name: checkout
+      uses: actions/checkout@v2
+    - name: install dependencies
+      run:  brew install automake libtool
+    - name: prepare
+      run:  ./.ci/osx-prepare.sh
+    - name: build
+      run:  PATH="$PATH:$HOME/bin" ./.ci/osx-build.sh
+    - name: upload logs on failure
+      if: failure()
+      uses: actions/upload-artifact@v2
+      with:
+        name: logs-osx-clang---disable-ssl
+        path: config.log