v8r

v8r checks the validity of JSON/YAML files if they have a matching schema defined on schemastore.org

v8r documentation

• Version in Mega-Linter: 0.6.1
• Visit Official Web Site
• See Index of problems detected by v8r

Configuration in Mega-Linter

• Enable v8r by adding YAML_V8R in ENABLE_LINTERS variable
• Disable v8r by adding YAML_V8R in DISABLE_LINTERS variable

Variable	Description	Default value
YAML_V8R_ARGUMENTS	User custom arguments to add in linter CLI call Ex: -s --foo "bar"
YAML_V8R_FILTER_REGEX_INCLUDE	Custom regex including filter Ex: (src\|lib)	Include every file
YAML_V8R_FILTER_REGEX_EXCLUDE	Custom regex excluding filter Ex: (test\|examples)	Exclude no file
YAML_V8R_CLI_LINT_MODE	Override default CLI lint mode - file: Calls the linter for each file - list_of_files: Call the linter with the list of files as argument - project: Call the linter from the root of the project	{linter.cli_lint_mode}
YAML_V8R_FILE_EXTENSIONS	Allowed file extensions. "*" matches any extension, "" matches empty extension. Empty list excludes all files Ex: [".py", ""]	[".yml", ".yaml"]
YAML_V8R_FILE_NAMES_REGEX	File name regex filters. Regular expression list for filtering files by their base names using regex full match. Empty list includes all files Ex: ["Dockerfile(-.+)?", "Jenkinsfile"]	Include every file
YAML_V8R_PRE_COMMANDS	List of bash commands to run before the linter	None
YAML_V8R_POST_COMMANDS	List of bash commands to run after the linter	None
YAML_V8R_DISABLE_ERRORS	Run linter but consider errors as warnings	false
YAML_V8R_DISABLE_ERRORS_IF_LESS_THAN	Maximum number of errors allowed	0

IDE Integration

Use v8r in your favorite IDE to catch errors before Mega-Linter !

	IDE	Extension Name	Install
	Eclipse	native support	Visit Web Site
	IDEA	native support	Visit Web Site
	vim	vison	Visit Web Site
	Visual Studio Code	native support	Visit Web Site

Mega-Linter Flavours

This linter is available in the following flavours

	Flavor	Description	Embedded linters	Info
	all	Default Mega-Linter Flavor	93
	ci_light	Optimized for CI items (Dockerfile, Jenkinsfile, JSON/YAML schemas,XML	13
	dart	Optimized for DART based projects	40
	documentation	Mega-Linter for documentation projects	39
	dotnet	Optimized for C, C++, C# or VB based projects	46
	go	Optimized for GO based projects	41
	java	Optimized for JAVA based projects	41
	javascript	Optimized for JAVASCRIPT or TYPESCRIPT based projects	48
	php	Optimized for PHP based projects	43
	python	Optimized for PYTHON based projects	48
	ruby	Optimized for RUBY based projects	40
	rust	Optimized for RUST based projects	40
	salesforce	Optimized for Salesforce based projects	42
	scala	Optimized for SCALA based projects	40
	swift	Optimized for SWIFT based projects	40
	terraform	Optimized for TERRAFORM based projects	44

Behind the scenes

How are identified applicable files

• File extensions: .yml, .yaml

How the linting is performed

• v8r is called one time by identified file

Example calls

v8r --ignore-errors myfile.yml

v8r --ignore-errors myfile.yaml

Help content

v8r <filename>

Validate a local json/yaml file against a schema

Positionals:
  filename  Local file to validate

Options:
      --help           Show help                                       [boolean]
      --version        Show version number                             [boolean]
  -v, --verbose        Run with verbose logging. Can be stacked e.g: -vv -vvv
                                                                         [count]
  -s, --schema         Local path or URL of schema to validate file against. If
                       not supplied, we will attempt to find an appropriate
                       schema on schemastore.org using the filename     [string]
  -c, --catalogs       Local path or URL of custom catalogs to use prior to
                       schemastore.org                                   [array]
      --ignore-errors  Exit with code 0 even if an error was encountered.
                       Passing this flag means a non-zero exit code is only
                       issued if validation could be completed successfully and
                       the file was invalid           [boolean] [default: false]
      --cache-ttl      Remove cached HTTP responses older than <cache-ttl>
                       seconds old. Passing 0 clears and disables cache
                       completely                        [number] [default: 600]

Installation on mega-linter Docker image

• NPM packages (node.js):
  • v8r