Git Diff Code Coverage

Application used to check code coverage by tests on added lines (ex. check coverage just on new code in PR)

How to use?

1. Install tool

npm i -g git-diff-code-coverage

2. Run test to generate coverage report

npm test

3. Run application to analyze it

gitDiffCodeCoverage --repoPath=/Users/user/Src/example --reportPath=artifacts/coverage/coverage-summary.json --fileTemplate=app/**/*.js --source=newBranch --target=master --reportFormat=lcov -v

Arguments

Path to folder with initiated git repository (required)

--repoPath, String

Source branch or commit hash (ex. myCoolFeature)

--source, String

Target branch or commit hash (ex. master)

--target, String, defaultValue: 'master'

Path to generated report (json summary coverage report)

--reportPath, String, defaultValue: 'coverage/coverage-summary.json'

Verbose mode (display stats by each file and line)

--verbose, -v

Silent mode (hide all output)

--silent, -s

Minimum overall coverage

--minimumOverallCoverage, -m, Number, defaultValue: 70

Files to analyze

--fileTemplate, -f, String, defaultValue: 'src/**/*.js'

Report format

--reportFormat, String, defaultValue: 'lcov', possible values: 'json', 'lcov'

Areas to improve:

• Analyse git default output (using data between @@ ... @@)
• Add other coverage report support
• Improve coverage
• Generate pretty output