Commit message linter

~12 min

Enforce a team's commit convention with ten lines of Python.

Your team requires commit messages shaped like type: subject where:

type is one of: feat, fix, docs, chore
a colon and a single space follow the type
the subject is non-empty and the TOTAL length is ≤ 50 characters

Read one commit message from stdin. Print OK if it passes, otherwise REJECTED.

Examples:

fix: raise db timeout to 5s      → OK
update stuff                     → REJECTED   (no valid type)
feat:no space                    → REJECTED   (missing space)

Hint: msg.split(": ", 1) and check the parts.

Language: python · Judge0

// sample tests

stdin "fix: raise db timeout to 5s" → stdout "OK"
stdin "update stuff" → stdout "REJECTED"
stdin "feat:no space" → stdout "REJECTED"

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Run your code to see test results here.