/cogito

Moved

Primary LanguageDMozilla Public License 2.0MPL-2.0

CI License

cōgitō

cōgitō analyses D code and calculates its cognitive complexity.

Installing and usage

Run make install build/release/bin/cogito.

It will download and install the frontend and build a binary. Then you can run it on some D source:

Run ./build/release/bin/cogito src/main.d.

Example output

module app: 5 (src/main.d)
accumulateResult: 5 (src/main.d:9)
accumulateResult.(λ): 0 (src/main.d:12)
accumulateResult.(λ): 2 (src/main.d:16)
(λ): 0 (src/main.d:33)

Command line options

Property name Allowed values Description
--threshold Positive numbers Fail if the source score exceeds this threshold.
--aggregate-threshold Positive numbers Fail if an aggregate score exceeds this threshold.
--module-threshold Positive numbers Fail if a function score exceeds this threshold.
--format flat, verbose, debug and silent See below.
--help Show a help message.

Formats

Flat format outputs only the functions violating a limit. If no limits are set, it prints all functions with their source file name and line number.

Verbose is the same as flat but it always prints all scores.

Debug output adds column numbers and scores inside aggregates.

Silent format produces no output, but returns an error if one of the thresholds is exceeded.

Return codes

The return code of the program provides some information on what kind of error occurred.

  • 0: Success
  • 1: Command line arguments are invalid
  • 2: Some source files contain errors
  • 3: Function threshold violation
  • 4: Aggregate threshold violation
  • 5: Module threshold violation