Improve Codecov settings

Fail the CI build if the Codecov uploading failed.
Show more detailed information in the Codecov comment.
Do not update the Codecov comment 15 times, but post it after all 16 reports were uploaded.
Ignore dates in coverage reports to not get "upload expired" because the report was taken from remote build cache.

.github/workflows/branches-and-prs.main.kts

@@ -104,7 +104,9 @@ workflow(
         )
         uses(
             name = "Upload to Codecov.io",
-            action = CodecovAction()
+            action = CodecovAction(
+                failCiIfError = true
+            )
         )
     }
 }

.github/workflows/branches-and-prs.yml

@@ -107,3 +107,5 @@ jobs:
     - id: 'step-3'
       name: 'Upload to Codecov.io'
       uses: 'codecov/codecov-action@v4'
+      with:
+        fail_ci_if_error: 'true'

.github/workflows/release.main.kts

@@ -87,7 +87,9 @@ workflow(
         )
         uses(
             name = "Upload to Codecov.io",
-            action = CodecovAction()
+            action = CodecovAction(
+                failCiIfError = true
+            )
         )
     }
     val releaseSpock = job(

.github/workflows/release.yml

@@ -95,6 +95,8 @@ jobs:
     - id: 'step-4'
       name: 'Upload to Codecov.io'
       uses: 'codecov/codecov-action@v4'
+      with:
+        fail_ci_if_error: 'true'
   release-spock:
     name: 'Release Spock'
     runs-on: '${{ matrix.os }}'

codecov.yml

@@ -0,0 +1,6 @@
+codecov:
+  max_report_age: off
+
+comment:
+  layout: "reach, diff, flags, files"
+  after_n_builds: 16