#moon_cov

MoonBit implementation of the MoonBit compiler coverage reporter.

It reads compiler-generated .trace.source metadata together with moonbit_coverage_* runtime logs. The supported trace schema is MOONCOVE00000004.

#Usage

Generate coverage artifacts in the target project:

moon test --enable-coverage

Then run moon_cove_report from that project root. With no explicit inputs it recursively discovers both artifact types:

moon_cove_report -f html
moon_cove_report -f caret
moon_cove_report -f simp_caret
moon_cove_report -f summary
moon_cove_report -f full_summary
moon_cove_report -f sorted_summary
moon_cove_report -f cobertura
moon_cove_report -f coveralls
moon_cove_report -f bisect

File-producing formats default to:

bisect.coverage
_coverage/
coveralls.json
cobertura.xml

Inputs and filters can be explicit:

moon_cove_report path/to/package.trace.source \
  -t path/to/moonbit_coverage_1.txt \
  -p username/module/pkg \
  -F source.mbt \
  --source-paths src,generated \
  -f caret

Package and file filters use exact or /suffix matching.

#Uploads

Coveralls upload uses curl; Codecov upload uses the official codecovcli executable. Both must already be available on PATH.

moon_cove_report -f coveralls \
  --send-to coveralls

moon_cove_report -f coveralls \
  --send-to codecov

CircleCI, Travis CI, GitHub Actions, and GitLab CI metadata are detected from the environment. Store tokens in COVERALLS_REPO_TOKEN or CODECOV_TOKEN instead of command-line arguments. Explicit --service-name, --service-job-id, and --service-pull-request values take precedence. Use --coveralls-include-git-info to include commit and branch metadata.

Upload reports are written to a private temporary directory and removed after the upload attempt. Local -f coveralls output is retained normally.

#Development

moon check --target all --warn-list +73
moon test --target native
moon test --target wasm
moon info
moon fmt

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