Configure and run code coverage reporting

.github/workflows/python-package.yml

@@ -45,6 +45,15 @@ jobs:
   test:
     runs-on: ubuntu-latest
 
+    with:
+      # =============
+      # PLEASE NOTE:
+      # Codecov.io tokens are repo-specific
+      # =============
+      # This token is specific to the biocommons/example repo
+      # Repos deriving from this one must provision & use their own token
+      codecov_token: "abc-123"
+
     strategy:
       fail-fast: false
       matrix:
@@ -68,6 +77,19 @@ jobs:
     - name: Test with pytest
       run: |
         make test
+
+    - name: Upload coverage data to Codecov
+      run: |
+        # Verify integrity of codecov download
+        curl https://uploader.codecov.io/verification.gpg | gpg --no-default-keyring --keyring trustedkeys.gpg --import
+        curl -Os https://uploader.codecov.io/latest/linux/codecov
+        curl -Os https://uploader.codecov.io/latest/linux/codecov.SHA256SUM
+        curl -Os https://uploader.codecov.io/latest/linux/codecov.SHA256SUM.sig
+        gpgv codecov.SHA256SUM.sig codecov.SHA256SUM
+        shasum -a 256 -c codecov.SHA256SUM
+        # Upload coverage report
+        chmod +x codecov
+        ./codecov        
         
   deploy:
     needs: