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spectral - GitHub

Configuration in MegaLinter

Variable Description Default value
OPENAPI_SPECTRAL_ARGUMENTS User custom arguments to add in linter CLI call
Ex: -s --foo "bar"
Ex: (src\|lib)
Include every file
Ex: (test\|examples)
Exclude no file
OPENAPI_SPECTRAL_CLI_LINT_MODE Override default CLI lint mode
- file: Calls the linter for each file
- project: Call the linter from the root of the project
OPENAPI_SPECTRAL_FILE_EXTENSIONS Allowed file extensions. "*" matches any extension, "" matches empty extension. Empty list excludes all files
Ex: [".py", ""]
[".yml", ".yaml", ".json"]
OPENAPI_SPECTRAL_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
OPENAPI_SPECTRAL_PRE_COMMANDS List of bash commands to run before the linter None
OPENAPI_SPECTRAL_POST_COMMANDS List of bash commands to run after the linter None
OPENAPI_SPECTRAL_CONFIG_FILE spectral configuration file name
Use LINTER_DEFAULT to let the linter find it
OPENAPI_SPECTRAL_RULES_PATH Path where to find linter configuration file Workspace folder, then MegaLinter default rules
OPENAPI_SPECTRAL_DISABLE_ERRORS Run linter but consider errors as warnings false
OPENAPI_SPECTRAL_DISABLE_ERRORS_IF_LESS_THAN Maximum number of errors allowed 0

IDE Integration

Use spectral in your favorite IDE to catch errors before MegaLinter !

IDE Extension Name Install
stoplight Native integration Visit Web Site
Visual Studio Code vscode-spectral Visit Web Site

MegaLinter Flavours

This linter is available in the following flavours

Flavor Description Embedded linters Info
all Default MegaLinter Flavor 112 Docker Image Size (tag) Docker Pulls
documentation MegaLinter for documentation projects 47 Docker Image Size (tag) Docker Pulls
dotnet Optimized for C, C++, C# or VB based projects 59 Docker Image Size (tag) Docker Pulls
go Optimized for GO based projects 49 Docker Image Size (tag) Docker Pulls
java Optimized for JAVA based projects 50 Docker Image Size (tag) Docker Pulls
javascript Optimized for JAVASCRIPT or TYPESCRIPT based projects 56 Docker Image Size (tag) Docker Pulls
php Optimized for PHP based projects 50 Docker Image Size (tag) Docker Pulls
python Optimized for PYTHON based projects 57 Docker Image Size (tag) Docker Pulls
ruby Optimized for RUBY based projects 47 Docker Image Size (tag) Docker Pulls
rust Optimized for RUST based projects 47 Docker Image Size (tag) Docker Pulls
salesforce Optimized for Salesforce based projects 50 Docker Image Size (tag) Docker Pulls
swift Optimized for SWIFT based projects 47 Docker Image Size (tag) Docker Pulls
terraform Optimized for TERRAFORM based projects 52 Docker Image Size (tag) Docker Pulls

Behind the scenes

How are identified applicable files

  • File extensions: .yml, .yaml, .json
  • Detected file content (regex): "openapi":, "swagger":, openapi:, swagger:

How the linting is performed

  • spectral is called one time by identified file (file CLI lint mode)

Example calls

spectral lint myfile.yml
spectral lint -r .openapirc.yml myfile.yml

Help content

spectral lint [documents..]

lint JSON/YAML documents from files or URLs

  documents  Location of JSON/YAML documents. Can be either a file, a glob or fetchable resource(s) on the web.  [array] [default: []]

  --version                    Show version number  [boolean]
  --help                       Show help  [boolean]
  --encoding, -e               text encoding to use  [string] [default: "utf8"]
  --format, -f                 formatter to use for outputting results  [string] [choices: "json", "stylish", "junit", "html", "text", "teamcity"] [default: "stylish"]
  --output, -o                 output to a file instead of stdout  [string]
  --resolver                   path to custom json-ref-resolver instance  [string]
  --ruleset, -r                path/URL to a ruleset file  [string]
  --skip-rule, -s              ignore certain rules if they are causing trouble  [string]
  --fail-severity, -F          results of this level or above will trigger a failure exit code  [string] [choices: "error", "warn", "info", "hint"] [default: "error"]
  --display-only-failures, -D  only output results equal to or greater than --fail-severity  [boolean] [default: false]
  --ignore-unknown-format      do not warn about unmatched formats  [boolean] [default: false]
  --show-unmatched-globs       show unmatched glob patterns  [deprecated: use --fail-on-unmatched-globs] [boolean] [default: false]
  --fail-on-unmatched-globs    fail on unmatched glob patterns  [boolean] [default: false]
  --verbose, -v                increase verbosity  [boolean]
  --quiet, -q                  no logging - output only  [boolean]

Installation on mega-linter Docker image