Also store raw coverage information on data branch

This makes it possible to have more information than just the coverage rate when comparing a PR.

coverage_comment/coverage.py

@@ -67,13 +67,15 @@ def compute_coverage(num_covered: int, num_total: int) -> decimal.Decimal:
     return decimal.Decimal(num_covered) / decimal.Decimal(num_total)
 
 
-def get_coverage_info(merge: bool, coverage_path: pathlib.Path) -> Coverage:
+def get_coverage_info(
+    merge: bool, coverage_path: pathlib.Path
+) -> tuple[dict, Coverage]:
     try:
         if merge:
             subprocess.run("coverage", "combine", path=coverage_path)
 
-        json_coverage = subprocess.run(
-            "coverage", "json", "-o", "-", path=coverage_path
+        json_coverage = json.loads(
+            subprocess.run("coverage", "json", "-o", "-", path=coverage_path)
         )
     except subprocess.SubProcessError as exc:
         if "No source for code:" in str(exc):
@@ -89,7 +91,7 @@ def get_coverage_info(merge: bool, coverage_path: pathlib.Path) -> Coverage:
             )
         raise
 
-    return extract_info(data=json.loads(json_coverage), coverage_path=coverage_path)
+    return json_coverage, extract_info(data=json_coverage, coverage_path=coverage_path)
 
 
 def generate_coverage_html_files(

coverage_comment/files.py

@@ -58,6 +58,7 @@ def apply(self):
 
 def compute_files(
     line_rate: decimal.Decimal,
+    raw_coverage_data: dict,
     minimum_green: decimal.Decimal,
     minimum_orange: decimal.Decimal,
     http_session: httpx.Client,
@@ -77,7 +78,10 @@ def compute_files(
         ),
         WriteFile(
             path=DATA_PATH,
-            contents=compute_datafile(line_rate=line_rate),
+            contents=compute_datafile(
+                raw_coverage_data=raw_coverage_data,
+                line_rate=line_rate,
+            ),
         ),
         WriteFile(
             path=BADGE_PATH,
@@ -88,8 +92,8 @@ def compute_files(
     ]
 
 
-def compute_datafile(line_rate: decimal.Decimal) -> str:
-    return json.dumps({"coverage": float(line_rate)})
+def compute_datafile(raw_coverage_data: dict, line_rate: decimal.Decimal) -> str:
+    return json.dumps({"coverage": float(line_rate), "raw_data": raw_coverage_data})
 
 
 def parse_datafile(contents) -> decimal.Decimal:

coverage_comment/main.py

@@ -72,7 +72,7 @@ def action(
         return 1
 
     if event_name in {"pull_request", "push"}:
-        coverage = coverage_module.get_coverage_info(
+        raw_coverage, coverage = coverage_module.get_coverage_info(
             merge=config.MERGE_COVERAGE_FILES, coverage_path=config.COVERAGE_PATH
         )
         if event_name == "pull_request":
@@ -94,6 +94,7 @@ def action(
             return save_coverage_data_files(
                 config=config,
                 coverage=coverage,
+                raw_coverage_data=raw_coverage,
                 github_session=github_session,
                 git=git,
                 http_session=http_session,
@@ -250,6 +251,7 @@ def post_comment(config: settings.Config, github_session: httpx.Client) -> int:
 def save_coverage_data_files(
     config: settings.Config,
     coverage: coverage_module.Coverage,
+    raw_coverage_data: dict,
     github_session: httpx.Client,
     git: subprocess.Git,
     http_session: httpx.Client,
@@ -269,6 +271,7 @@ def save_coverage_data_files(
     log.info("Computing coverage files & badge")
     operations: list[files.Operation] = files.compute_files(
         line_rate=coverage.info.percent_covered,
+        raw_coverage_data=raw_coverage_data,
         minimum_green=config.MINIMUM_GREEN,
         minimum_orange=config.MINIMUM_ORANGE,
         http_session=http_session,

tests/end_to_end/test_all.py

@@ -94,6 +94,8 @@ def test_public_repo(
     # unit tests are for.
     data = client.get(f"{raw_url_prefix}/data.json", follow_redirects=True).json()
     assert "coverage" in data
+    assert "raw_data" in data
+    assert "meta" in data["raw_data"]
 
     endpoint = client.get(
         f"{raw_url_prefix}/endpoint.json", follow_redirects=True

tests/unit/test_coverage.py

@@ -28,14 +28,17 @@ def test_get_coverage_info(mocker, coverage_json, coverage_obj):
         "coverage_comment.subprocess.run", return_value=json.dumps(coverage_json)
     )
 
-    result = coverage.get_coverage_info(merge=True, coverage_path=pathlib.Path("."))
+    raw_coverage_information, result = coverage.get_coverage_info(
+        merge=True, coverage_path=pathlib.Path(".")
+    )
 
     assert run.call_args_list == [
         mocker.call("coverage", "combine", path=pathlib.Path(".")),
         mocker.call("coverage", "json", "-o", "-", path=pathlib.Path(".")),
     ]
 
     assert result == coverage_obj
+    assert raw_coverage_information == coverage_json
 
 
 def test_get_coverage_info__no_merge(mocker, coverage_json):

tests/unit/test_files.py

@@ -31,6 +31,7 @@ def test_compute_files(session):
 
     result = files.compute_files(
         line_rate=decimal.Decimal("0.1234"),
+        raw_coverage_data={"foo": ["bar", "bar2"]},
         minimum_green=decimal.Decimal("25"),
         minimum_orange=decimal.Decimal("70"),
         http_session=session,
@@ -40,16 +41,22 @@ def test_compute_files(session):
             path=pathlib.Path("endpoint.json"),
             contents='{"schemaVersion": 1, "label": "Coverage", "message": "12%", "color": "red"}',
         ),
-        files.WriteFile(path=pathlib.Path("data.json"), contents='{"coverage": 12.34}'),
+        files.WriteFile(
+            path=pathlib.Path("data.json"),
+            contents='{"coverage": 12.34, "raw_data": {"foo": ["bar", "bar2"]}}',
+        ),
         files.WriteFile(path=pathlib.Path("badge.svg"), contents="foo"),
     ]
     assert result == expected
 
 
 def test_compute_datafile():
     assert (
-        files.compute_datafile(line_rate=decimal.Decimal("12.34"))
-        == """{"coverage": 12.34}"""
+        files.compute_datafile(
+            line_rate=decimal.Decimal("12.34"),
+            raw_coverage_data={"meta": {"version": "5.5"}},
+        )
+        == """{"coverage": 12.34, "raw_data": {"meta": {"version": "5.5"}}}"""
     )