YAMLCheck

# YAMLCheck A real YAML validator and toolkit. Check syntax, convert YAML to JSON, lint for style issues, and list top-level keys. Uses PyYAML when available, falls back to basic parsing when not. ## Commands | Command | Description | |---------|-------------| | `yamlcheck validate <file>` | Validate YAML syntax — reports document count, types, key counts, file size. Falls back to basic tab/colon checks without PyYAML | | `yamlcheck to-json <file>` | Convert YAML to formatted JSON output. Handles multi-document YAML files | | `yamlcheck lint <file>` | Check for common style issues: tabs, trailing whitespace, Windows line endings, odd indentation, missing spaces after colons, long lines | | `yamlcheck keys <file>` | List top-level keys with types and value previews | ## Requirements - `python3` (required) - `PyYAML` (optional — enables full parsing; install with `pip3 install pyyaml`) Without PyYAML, the tool still works but uses basic regex-based checks instead of full YAML parsing. ## Examples ```bash # Validate a docker-compose file yamlcheck validate docker-compose.yml # Convert YAML config to JSON yamlcheck to-json values.yaml # Check for style issues yamlcheck lint playbook.yml # See what keys are defined yamlcheck keys config.yaml ```