prepare the repo for codecov.io representation

.codecov.yml

@@ -0,0 +1,31 @@
+codecov:
+  notify:
+    require_ci_to_pass: no
+
+coverage:
+  precision: 2
+  round: down
+  range: "20...100"
+
+  status:
+    project: no
+    patch: no
+    changes: no
+
+parsers:
+  gcov:
+    branch_detection:
+      conditional: yes
+      loop: yes
+      method: no
+      macro: no
+
+comment:
+  layout: "reach,diff,flags,tree"
+  behavior: default
+  require_changes: no
+
+ignore:
+  - "**/mocks"
+  - "**/zz_generated*.go"
+

Makefile

@@ -1,6 +1,7 @@
 unexport GOFLAGS
 
 GOOS?=linux
+TESTOPTS ?=
 GOARCH?=amd64
 GOENV=GOOS=${GOOS} GOARCH=${GOARCH} CGO_ENABLED=0 GOFLAGS=
 GOPATH := $(shell go env GOPATH)
@@ -34,25 +35,11 @@ tools:
 
 .PHONY: test
 test:
-	go test ./... -covermode=atomic -coverpkg=./... -v
+	go test ./... -v $(TESTOPTS)
 
-test-cover:
-	go test -covermode=atomic -coverpkg=./... -coverprofile=coverage.out ./...
-
-.PHONY: coverage-html
-cover-html:
-	go tool cover -html=coverage.out
-
-.PHONY:coverage
-coverage:test-cover
-	@{ \
-	set -e ;\
-	REQ_COV=15.5 ;\
-	TEST_COV=$$(go tool cover -func coverage.out | grep -F total | awk '{print substr($$3, 1, length($$3)-1)}' ) ;\
-	if (( $$(echo "$$REQ_COV > $$TEST_COV" |bc -l) )); then echo "Error: Code Coverage is less"; exit 1 ;\
-	else echo "Code Coverage Test Passed"; exit 0; fi ;\
-	}
-	@rm -rf coverage.out
+.PHONY: coverage
+coverage:
+	hack/codecov.sh
 
 # Installed using instructions from: https://golangci-lint.run/usage/install/#linux-and-windows
 getlint:

hack/codecov.sh

@@ -0,0 +1,55 @@
+#!/usr/bin/env bash
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+REPO_ROOT=$(git rev-parse --show-toplevel)
+CI_SERVER_URL=https://prow.svc.ci.openshift.org/view/gcs/origin-ci-test
+COVER_PROFILE=${COVER_PROFILE:-coverage.out}
+JOB_TYPE=${JOB_TYPE:-"local"}
+
+# Default concurrency to four threads. By default it's the number of procs,
+# which seems to be 16 in the CI env. Some consumers' coverage jobs were
+# regularly getting OOM-killed; so do this rather than boost the pod resources
+# unreasonably.
+COV_THREAD_COUNT=${COV_THREAD_COUNT:-4}
+make -C "${REPO_ROOT}" test TESTOPTS="-coverprofile=${COVER_PROFILE}.tmp -covermode=atomic -coverpkg=./... -p ${COV_THREAD_COUNT}"
+
+# Remove generated files from coverage profile
+grep -v "zz_generated" "${COVER_PROFILE}.tmp" > "${COVER_PROFILE}"
+rm -f "${COVER_PROFILE}.tmp"
+
+# Configure the git refs and job link based on how the job was triggered via prow
+if [[ "${JOB_TYPE}" == "presubmit" ]]; then
+       echo "detected PR code coverage job for #${PULL_NUMBER}"
+       REF_FLAGS="-P ${PULL_NUMBER} -C ${PULL_PULL_SHA}"
+       JOB_LINK="${CI_SERVER_URL}/pr-logs/pull/${REPO_OWNER}_${REPO_NAME}/${PULL_NUMBER}/${JOB_NAME}/${BUILD_ID}"
+elif [[ "${JOB_TYPE}" == "postsubmit" ]]; then
+       echo "detected branch code coverage job for ${PULL_BASE_REF}"
+       REF_FLAGS="-B ${PULL_BASE_REF} -C ${PULL_BASE_SHA}"
+       JOB_LINK="${CI_SERVER_URL}/logs/${JOB_NAME}/${BUILD_ID}"
+elif [[ "${JOB_TYPE}" == "local" ]]; then
+       echo "coverage report available at ${COVER_PROFILE}"
+       exit 0
+else
+       echo "${JOB_TYPE} jobs not supported" >&2
+       exit 1
+fi
+
+# Configure certain internal codecov variables with values from prow.
+export CI_BUILD_URL="${JOB_LINK}"
+export CI_BUILD_ID="${JOB_NAME}"
+export CI_JOB_ID="${BUILD_ID}"
+
+if [[ "${JOB_TYPE}" != "local" ]]; then
+       if [[ -z "${ARTIFACT_DIR:-}" ]] || [[ ! -d "${ARTIFACT_DIR}" ]] || [[ ! -w "${ARTIFACT_DIR}" ]]; then
+              echo '${ARTIFACT_DIR} must be set for non-local jobs, and must point to a writable directory' >&2
+              exit 1
+       fi
+       curl -sS https://codecov.io/bash -o "${ARTIFACT_DIR}/codecov.sh"
+       bash <(cat "${ARTIFACT_DIR}/codecov.sh") -Z -K -f "${COVER_PROFILE}" -r "${REPO_OWNER}/${REPO_NAME}" ${REF_FLAGS}
+else
+       bash <(curl -s https://codecov.io/bash) -Z -K -f "${COVER_PROFILE}" -r "${REPO_OWNER}/${REPO_NAME}" ${REF_FLAGS}
+fi
+