Go (RE2)

Semantic Commit Message in GO

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

Try it in the GO tester →

Pattern

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

Go (RE2) code

goGo
package main

import (
	"fmt"
	"regexp"
)

func main() {
	re := regexp.MustCompile(`(?i)^(feat|fix|docs|style|refactor|perf|test|build|ci|chore|revert)(\([a-z0-9\-]+\))?(!)?:\s.+`)
	input := `feat(auth): add OAuth2 login`
	for _, match := range re.FindAllString(input, -1) {
		fmt.Println(match)
	}
}

Uses `regexp.MustCompile` (panics on bad patterns at startup) and `FindAllString` for all matches.

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.

Python (re)

Supported

See how this pattern looks (and behaves) in Python's stdlib `re` module.

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