naming-convention

Summary: Naming convention violation

Category: Custom

Description

This custom rule allows teams and organizations to define their own naming conventions for their Rego projects, without having to write custom linter policies. Naming conventions are simply defined in the Regal configuration file using regex patterns.

Regal can enforce naming conventions for:

• Package names
• Rule names
• Function names
• Variable names

Configuration Options

This linter rule provides the following configuration options:

rules:
  custom:
    naming-convention:
      # note that all rules in the "custom" category are disabled by default
      # (i.e. level "ignore") as some configuration needs to be provided by
      # the user (i.e. you!) in order for them to be useful.
      #
      # one of "error", "warning", "ignore"
      level: error
      conventions:
          # allow only "private" rules and functions, i.e. those starting with
          # underscore, or rules named "deny" or "allow"
        - pattern: '^_[a-z]+$|^deny$|^allow$'
          # one of "package", "rule", "function", "variable"
          targets:
            - rule
            - function
        # any number of naming rules may be added
        # package names must start with "acmecorp" or "system"
        - pattern: '^acmecorp|^system'
          targets:
            - package

Note: In order to avoid characters accidentally getting escaped, always use single quotes to encode your regex patterns. Additionally, you'll most often want to include anchors for the start and end of the string (^ and $) in your patterns, or else your pattern might accidentally match only parts of the name rather than the whole name.

Community

If you think you've found a problem with this rule or its documentation, would like to suggest improvements, new rules, or just talk about Regal in general, please join us in the #regal channel in the Styra Community Slack!