Gitがインストールされていない環境でログを取得し、ハンドリングする

Python の dulwich を使う例が多い

from dulwich.client import HttpGitClient
from dulwich.repo import MemoryRepo
from urllib.parse import urlparse
import itertools

def fetch_repo(repo=None, url=None):
    url_object = urlparse(url)
    client = HttpGitClient("://".join([url_object.scheme, url_object.netloc]))
    remote_refs = client.fetch(url_object.path, repo)
    for ref, sha1 in remote_refs.items():
        repo.refs[ref] = sha1
    return repo

def get_first_commit_time(repo):
    for entry in repo.get_walker():
        return entry.commit.commit_time

Reference

• https://github.com/jelmer/dulwich
• http://ijin.github.io/blog/2016/02/18/ssh-and-git-on-aws-lambda/
• https://qiita.com/shibataka000/items/910754486ba2585209b2