Codecov reports are failing to show-up

[MrAlias]

https://app.codecov.io/github/open-telemetry/opentelemetry-go

Example successful upload from our CI: https://github.com/open-telemetry/opentelemetry-go/actions/runs/14112039492/job/39533072036

The corresponding page on the codecov UI: https://app.codecov.io/github/open-telemetry/opentelemetry-go/commit/7376a33e032fffd443e94fa12a82222a7fd3cc72

Investigation is needed to resolve this error. We want our code-base accurately represented in the code coverage UI.

[MrAlias]

cc @pellared

[pellared]

I downloaded the reports from successful and failed uploads.

The failed uploads started to have the following "header":

/home/runner/work/opentelemetry-go/opentelemetry-go/codecov.SHA256SUM.sig
/home/runner/work/opentelemetry-go/opentelemetry-go/codecov
/home/runner/work/opentelemetry-go/opentelemetry-go/coverage-artifacts-~1.24.0/coverage.txt
/home/runner/work/opentelemetry-go/opentelemetry-go/codecov.SHA256SUM

Maybe there was some change in the codecov uploader which the codecov backend does not handle correctly?

Looks like there is already an issue for it:

• [BUG] uploads fail since cli upgraded to v10.3.0 codecov/codecov-action#1801

[MrAlias]

Example reports:

opentelemetry-go-contrib.txt

opentelemetry-go.txt

The successful opentelemetry-go-contrib report starts with a full repository file listing. The opentelemetry-go one starts with what @pellared mentioned:

/home/runner/work/opentelemetry-go/opentelemetry-go/codecov.SHA256SUM.sig
/home/runner/work/opentelemetry-go/opentelemetry-go/codecov
/home/runner/work/opentelemetry-go/opentelemetry-go/coverage-artifacts-~1.24.0/coverage.txt
/home/runner/work/opentelemetry-go/opentelemetry-go/codecov.SHA256SUM

[MrAlias]

contrib is using a job step for the upload:

https://github.com/open-telemetry/opentelemetry-go-contrib/blob/b0c0319eecb7b133f1476c17490e80b2a8d57301/.github/workflows/ci.yml#L88-L93

otel is running it its own job:

opentelemetry-go/.github/workflows/ci.yml

Lines 100 to 131 in c9c9929

	test-coverage:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Repo
	uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
	- name: Install Go
	uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
	with:
	go-version: ${{ env.DEFAULT_GO_VERSION }}
	check-latest: true
	cache-dependency-path: "**/go.sum"
	- name: Run coverage tests
	run: make test-coverage
	- name: Store coverage test output
	uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
	with:
	name: coverage-artifacts-${{ env.DEFAULT_GO_VERSION }}
	path: coverage.txt
	codecov:
	runs-on: ubuntu-latest
	needs: [test-coverage]
	steps:
	- uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
	with:
	pattern: coverage-artifacts-${{ env.DEFAULT_GO_VERSION }}
	- name: Upload coverage report
	uses: codecov/codecov-action@18283e04ce6e62d37312384ff67231eb8fd56d24 # v5.4.3
	with:
	fail_ci_if_error: true
	files: ./coverage.txt
	verbose: true

This was done to allow the upload to be retried without having to re-run the go coverage tests.