Git Commit SHA
Match Git commit hashes, both short (7 chars) and full (40 chars) forms.
Try it in RegexPro →Available in
JavaScript / ECMAScript code
const re = new RegExp("\\b[0-9a-f]{7,40}\\b", "g");
const input = "commit 75d2cb0";
const matches = [...input.matchAll(re)];
console.log(matches.map(m => m[0]));Uses `String.prototype.matchAll` for global iteration (Node 12+ / all modern browsers).
Python (re) code
import re
pattern = re.compile(r"\b[0-9a-f]{7,40}\b")
input_text = "commit 75d2cb0"
for m in pattern.finditer(input_text):
print(m.group(0))Stdlib `re` module — no third-party dependency. Works on Python 3.6+.
Go (RE2) code
package main
import (
"fmt"
"regexp"
)
func main() {
re := regexp.MustCompile(`\b[0-9a-f]{7,40}\b`)
input := `commit 75d2cb0`
for _, match := range re.FindAllString(input, -1) {
fmt.Println(match)
}
}Uses `regexp.MustCompile` (panics on bad patterns at startup) and `FindAllString` for all matches.
Pattern
\b[0-9a-f]{7,40}\b (flags: g)Raw source: \b[0-9a-f]{7,40}\b
How it works
Examples
Input
commit 75d2cb0Matches
75d2cb0
Input
e7827cc1234567890abcdef1234567890abcdef1Matches
e7827cc1234567890abcdef1234567890abcdef1
Input
zzzzzzzNo match
—Common use cases
- •Extracting SHAs from build logs
- •CI/CD pipeline tagging
- •Changelog generation
- •Issue/PR cross-linking tooling
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