markdown-link-check

markdown-link-check documentation

Version in MegaLinter: 3.12.2
Visit Official Web Site
See How to configure markdown-link-check rules
- If custom .markdown-link-check.json config file isn't found, .markdown-link-check.json will be used
See How to disable markdown-link-check rules in files

Configuration in MegaLinter

Enable markdown-link-check by adding MARKDOWN_MARKDOWN_LINK_CHECK in ENABLE_LINTERS variable
Disable markdown-link-check by adding MARKDOWN_MARKDOWN_LINK_CHECK in DISABLE_LINTERS variable

Variable	Description	Default value
MARKDOWN_MARKDOWN_LINK_CHECK_ARGUMENTS	User custom arguments to add in linter CLI call Ex: `-s --foo "bar"`
MARKDOWN_MARKDOWN_LINK_CHECK_COMMAND_REMOVE_ARGUMENTS	User custom arguments to remove from command line before calling the linter Ex: `-s --foo "bar"`
MARKDOWN_MARKDOWN_LINK_CHECK_FILTER_REGEX_INCLUDE	Custom regex including filter Ex: `(src\\|lib)`	Include every file
MARKDOWN_MARKDOWN_LINK_CHECK_FILTER_REGEX_EXCLUDE	Custom regex excluding filter Ex: `(test\\|examples)`	Exclude no file
MARKDOWN_MARKDOWN_LINK_CHECK_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	`list_of_files`
MARKDOWN_MARKDOWN_LINK_CHECK_FILE_EXTENSIONS	Allowed file extensions. `"*"` matches any extension, `""` matches empty extension. Empty list excludes all files Ex: `[".py", ""]`	`[".md"]`
MARKDOWN_MARKDOWN_LINK_CHECK_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
MARKDOWN_MARKDOWN_LINK_CHECK_PRE_COMMANDS	List of bash commands to run before the linter	None
MARKDOWN_MARKDOWN_LINK_CHECK_POST_COMMANDS	List of bash commands to run after the linter	None
MARKDOWN_MARKDOWN_LINK_CHECK_UNSECURED_ENV_VARIABLES	List of env variables explicitly not filtered before calling MARKDOWN_MARKDOWN_LINK_CHECK and its pre/post commands	None
MARKDOWN_MARKDOWN_LINK_CHECK_CONFIG_FILE	markdown-link-check configuration file nameUse `LINTER_DEFAULT` to let the linter find it	`.markdown-link-check.json`
MARKDOWN_MARKDOWN_LINK_CHECK_RULES_PATH	Path where to find linter configuration file	Workspace folder, then MegaLinter default rules
MARKDOWN_MARKDOWN_LINK_CHECK_DISABLE_ERRORS	Run linter but consider errors as warnings	`false`
MARKDOWN_MARKDOWN_LINK_CHECK_DISABLE_ERRORS_IF_LESS_THAN	Maximum number of errors allowed	`0`
MARKDOWN_MARKDOWN_LINK_CHECK_CLI_EXECUTABLE	Override CLI executable	`['markdown-link-check']`

MegaLinter Flavors

This linter is available in the following flavors

Flavor	Description	Embedded linters
all	Default MegaLinter Flavor	124
c_cpp	Optimized for pure C/C++ projects	54
cupcake	MegaLinter for the most commonly used languages	83
documentation	MegaLinter for documentation projects	49
dotnet	Optimized for C, C++, C# or VB based projects	61
dotnetweb	Optimized for C, C++, C# or VB based projects with JS/TS	70
go	Optimized for GO based projects	51
java	Optimized for JAVA based projects	52
javascript	Optimized for JAVASCRIPT or TYPESCRIPT based projects	59
php	Optimized for PHP based projects	54
python	Optimized for PYTHON based projects	62
ruby	Optimized for RUBY based projects	50
rust	Optimized for RUST based projects	50
salesforce	Optimized for Salesforce based projects	54
swift	Optimized for SWIFT based projects	50
terraform	Optimized for TERRAFORM based projects	54

Behind the scenes

How are identified applicable files

File extensions: .md

How the linting is performed

markdown-link-check is called once with the list of files as arguments (list_of_files CLI lint mode)

Example calls

markdown-link-check myfile.md

markdown-link-check -c .markdown-link-check.json myfile.md

Help content

(node:1524) [DEP0040] DeprecationWarning: The `punycode` module is deprecated. Please use a userland alternative instead.
(Use `node --trace-deprecation ...` to show where the warning was created)
Usage: markdown-link-check [options] [filenamesOrUrls...]

Options:
  -V, --version           output the version number
  -p, --progress          show progress bar
  -c, --config [config]   apply a config file (JSON), holding e.g. url specific
                          header configuration
  -q, --quiet             displays errors only
  -v, --verbose           displays detailed error information
  -i --ignore <paths>     ignore input paths including an ignore path
  -a, --alive <code>      comma separated list of HTTP codes to be considered
                          as alive
  -r, --retry             retry after the duration indicated in 'retry-after'
                          header when HTTP code is 429
  --projectBaseUrl <url>  the URL to use for {{BASEURL}} replacement
  -h, --help              display help for command

Installation on mega-linter Docker image

NPM packages (node.js):
- markdown-link-check