add github action

Author: Rustam Sadykov

.github/workflows/night-statistics-collection.yml

@@ -0,0 +1,75 @@
+name: "UTBot Java: night statistics collection"
+
+on:
+   schedule:
+     - cron: '0 0 * * *'
+
+env:
+  run_tries: 3
+  run_timeout_minutes: 20
+  output_stats: stats.json
+  history_file: monitoring/history.json
+  coverage_graph_file: monitoring/coverage_graph.png
+  quantitative_graph_file: monitoring/quantitative_graph.png
+  KOTLIN_HOME: /usr
+
+jobs:
+  build_and_run_monitoring:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - uses: actions/setup-java@v3
+        with:
+          java-version: '8'
+          distribution: 'zulu'
+          java-package: jdk+fx
+      - uses: gradle/gradle-build-action@v2
+        with:
+          gradle-version: 6.8
+      - uses: actions/setup-python@v4
+        with:
+          python-version: '3.9'
+          cache: 'pip'
+      - name: Install matplotlib
+        run: pip install matplotlib
+
+      - name: Build and run monitoring UTBot Java
+        run: |
+          gradle :utbot-junit-contest:monitoringJar
+          java -jar utbot-junit-contest/build/libs/monitoring.jar \
+            $output_stats $run_tries $run_timeout_minutes
+
+      - name: Update history and render graphs
+        run: |
+          python monitoring/draw_stats_graphs.py \
+            $history_file \
+            $output_stats \
+            $coverage_graph_file \
+            $quantitative_graph_file
+
+      - name: Get current date
+        id: date
+        run: echo "::set-output name=date::$(date +'%d-%m-%Y')"
+
+      - name: Commit and push graphs and statistics
+        uses: actions-js/push@master
+        with:
+          message: 'night-monitoring-${{ steps.date.outputs.date }}'
+          directory: './monitoring'
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Upload logs
+        if: ${{ always() }}
+        uses: actions/upload-artifact@v3
+        with:
+          name: logs
+          path: logs/utbot.log
+
+      - name: Upload statistics
+        if: ${{ success() }}
+        uses: actions/upload-artifact@v3
+        with:
+          name: statistics
+          path: ${{ env.output_stats }}