Python (re)

Semantic Commit Message in PY

Validate Conventional Commits format: type(scope)!: description.

Try it in the PY tester →

Pattern

regexPY
^(feat|fix|docs|style|refactor|perf|test|build|ci|chore|revert)(\([a-z0-9\-]+\))?(!)?:\s.+   (flags: i)

Python (re) code

pyPython
import re

pattern = re.compile(r"^(feat|fix|docs|style|refactor|perf|test|build|ci|chore|revert)(\([a-z0-9\-]+\))?(!)?:\s.+", re.IGNORECASE)
input_text = "feat(auth): add OAuth2 login"
for m in pattern.finditer(input_text):
    print(m.group(0))

Stdlib `re` module — no third-party dependency. Works on Python 3.6+.

How the pattern works

The first group captures the commit type from the allowed list. (\([a-z0-9\-]+\))? optionally captures a scope in parentheses. (!)? captures a breaking change marker. :\s requires a colon and space before the description. The i flag makes types case-insensitive.

Examples

Input

feat(auth): add OAuth2 login

Matches

  • feat(auth): add OAuth2 login

Input

fix!: correct null pointer in parser

Matches

  • fix!: correct null pointer in parser

Input

random commit message

No match

—

Same pattern, other engines

JavaScript / ECMAScript

Supported

See how this pattern looks (and behaves) in JavaScript's built-in RegExp.

Go (RE2)

Supported

See how this pattern looks (and behaves) in Go's `regexp` package (RE2 engine).

← Back to Semantic Commit Message overview (all engines)