move clang-tidy from Jenkins to Github Actions

.github/workflows/clang-tidy.yml

@@ -0,0 +1,46 @@
+name: Clang Tidy
+
+on:
+  push:
+    branches:
+    - 'master'
+  pull_request:
+    branches:
+    - '*'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    container: px4io/px4-dev-clang:2020-04-01
+    steps:
+    - uses: actions/checkout@v1
+      with:
+        token: ${{secrets.ACCESS_TOKEN}}
+
+    - name: Prepare ccache timestamp
+      id: ccache_cache_timestamp
+      shell: cmake -P {0}
+      run: |
+        string(TIMESTAMP current_date "%Y-%m-%d-%H;%M;%S" UTC)
+        message("::set-output name=timestamp::${current_date}")
+    - name: ccache cache files
+      uses: actions/cache@v2
+      with:
+        path: ~/.ccache
+        key: clang-tidy-ccache-${{steps.ccache_cache_timestamp.outputs.timestamp}}
+        restore-keys: clang-tidy-ccache-
+    - name: setup ccache
+      run: |
+          mkdir -p ~/.ccache
+          echo "base_dir = ${GITHUB_WORKSPACE}" > ~/.ccache/ccache.conf
+          echo "compression = true" >> ~/.ccache/ccache.conf
+          echo "compression_level = 6" >> ~/.ccache/ccache.conf
+          echo "max_size = 400M" >> ~/.ccache/ccache.conf
+          ccache -s
+          ccache -z
+
+    - name: make clang-tidy-quiet
+      run: |
+        ccache -z
+        make clang-tidy-quiet
+        ccache -s

Jenkinsfile

@@ -120,28 +120,6 @@ pipeline {
           }
         }
 
-        stage('Clang tidy') {
-          agent {
-            docker {
-              image 'px4io/px4-dev-clang:2020-04-01'
-              args '-e CCACHE_BASEDIR=$WORKSPACE -v ${CCACHE_DIR}:${CCACHE_DIR}:rw'
-            }
-          }
-          steps {
-            sh 'export'
-            sh 'make distclean'
-            sh 'git fetch --tags'
-            retry (3) {
-              sh 'make clang-tidy-quiet'
-            }
-          }
-          post {
-            always {
-              sh 'make distclean'
-            }
-          }
-        }
-
         stage('Cppcheck') {
           agent {
             docker {