v0.24.0

What's Changed

Added

• Option --query by @pamburus in #112

  Usage

  • Command

    $ hl my-service.log --query 'level > info or status-code >= 400 or duration > 0.5'
    

    Displays messages that either have a level higher than info (i.e. warning or error) or have a status code field with a numeric value >= 400 or a duration field with a numeric value >= 0.5.

  • Command

    $ hl my-service.log -q '(request in (95c72499d9ec, 9697f7aa134f, bc3451d0ad60)) or (method != GET)'
    

    Displays all messages that have the 'request' field with one of these values, or the 'method' field with a value other than 'GET'.

  • Complete set of supported operators

    • Logical operators
      • Logical conjunction - and, &&
      • Logical disjunction - or, ||
      • Logical negation - not, !
    • Comparison operators
      • Equal - eq, =
      • Not equal - ne, !=
      • Greater than - gt, >
      • Greater or equal - ge, >=
      • Less than - lt, <
      • Less or equal - le, <=
    • String matching operators
      • Sub-string check - (contain, ~=), (not contain, !~=)
      • Wildcard match - (like), (not like)
        • Wildcard characters are: * for zero or more characters and ? for a single character
      • Regular expression match - (match, ~~=), (not match, !~~=)
    • Operators with sets
      • Test if value is one of the values in a set - in (v1, v2), not in (v1, v2)

  • Notes

    • Special field names that are reserved for filtering by predefined fields regardless of the actual JSON field names used to load the corresponding value: level, message, caller and logger.
    • To address a JSON field with one of these names instead of predefined fields, add a period before its name, i.e., .level will perform a match against the "level" JSON field.
    • To address a JSON field by its exact name, use a JSON-formatted string, i.e. -q '".level" = info'.
    • To specify special characters in field values, also use a JSON-formatted string, i.e.

      $ hl my-service.log -q 'message contain "Error:\nSomething unexpected happened"'
      

Full Changelog: v0.23.2...v0.24.0