add proper codecov label to the repo

Author: Shfdis

.github/actions/gcovr/post_pr_comment.sh

@@ -33,9 +33,18 @@ summary = json.loads(Path(os.environ["SUMMARY_JSON"]).read_text())
 repo = os.environ["GITHUB_REPOSITORY"]
 run_id = os.environ["GITHUB_RUN_ID"]
 
-line = summary["line"]
-branch = summary["branch"]
-func = summary["function"]
+def metric(name: str) -> dict:
+    if name in summary:
+        return summary[name]
+    return {
+        "covered": summary[f"{name}_covered"],
+        "num": summary[f"{name}_total"],
+        "percent": summary.get(f"{name}_percent") or 0,
+    }
+
+line = metric("line")
+branch = metric("branch")
+func = metric("function")
 
 def bar(percent: float) -> str:
     filled = max(0, min(10, int(round(percent / 10))))

.github/actions/gcovr/run_gcovr.sh

@@ -38,9 +38,19 @@ if [[ -n "${GITHUB_STEP_SUMMARY:-}" && -f "${OUTPUT_DIR}/summary.json" ]]; then
     echo "| Metric | Covered | Total | Percent |"
     echo "| --- | ---: | ---: | ---: |"
     jq -r '
-      .line as $l
-      | .branch as $b
-      | .function as $f
+      def metric($name):
+        if has($name) then
+          .[$name]
+        else
+          {
+            covered: .[$name + "_covered"],
+            num: .[$name + "_total"],
+            percent: .[$name + "_percent"]
+          }
+        end;
+      metric("line") as $l
+      | metric("branch") as $b
+      | metric("function") as $f
       | "| Line | \($l.covered) | \($l.num) | \($l.percent // 0)% |",
         "| Branch | \($b.covered) | \($b.num) | \($b.percent // 0)% |",
         "| Function | \($f.covered) | \($f.num) | \($f.percent // 0)% |"

.github/workflows/coverage.yml

@@ -18,6 +18,7 @@ jobs:
     runs-on: ubuntu-22.04
     permissions:
       contents: read
+      id-token: write
       pull-requests: write
     services:
       ydb:
@@ -71,6 +72,17 @@ jobs:
           gcov-executable: gcov-13
           post-pr-comment: ${{ github.event_name == 'pull_request' }}
 
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v5
+        with:
+          use_oidc: true
+          files: build/coverage/cobertura.xml
+          disable_search: true
+          flags: sdk
+          name: ydb-cpp-sdk
+          fail_ci_if_error: true
+          verbose: true
+
       - name: Upload coverage reports
         uses: actions/upload-artifact@v4
         with:

README.md

@@ -1,5 +1,7 @@
 # YDB C++ SDK: driver for [YDB](https://github.com/ydb-platform/ydb)
 
+[![Codecov](https://codecov.io/gh/ydb-platform/ydb-cpp-sdk/branch/main/graph/badge.svg)](https://app.codecov.io/gh/ydb-platform/ydb-cpp-sdk)
+
 ## Building YDB C++ SDK from sources
 
 ### Prerequisites