Try again, inlining!

.github/workflows/hercules.yml

@@ -1,17 +1,28 @@
+name: Hercules Analysis
+
 on: [push]
 
 jobs:
   hercules-charts:
     runs-on: ubuntu-latest
-    name: Charts generated by src-d/hercules
+    name: Generate Burndown Charts
     steps:
       - uses: actions/checkout@master
         with:
           fetch-depth: 0
-      - name: Hercules
-        uses: src-d/hercules@master
-        with:
-          args: "--burndown"
+
+      - name: Run Hercules Analysis
+        run: |
+          # Install Hercules and Labours
+          docker run --rm -v $(pwd):/repo --workdir=/repo \
+            srcd/hercules:latest \
+            /bin/bash -c \
+            'hercules --burndown . | labours -m burndown-project -f pb -o hercules_charts \
+            && cd hercules_charts \
+            && tar -cf ../hercules_charts.tar * \
+            && cd .. \
+            && rm -r hercules_charts'
+      
       - uses: actions/upload-artifact@master
         with:
           name: hercules_charts