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The cobbler's children have no shoes, or buildi...
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Alex Gaynor
May 30, 2016
Programming
1
260
The cobbler's children have no shoes, or building better tools for ourselves
As delivered at PyCon 2016 in Portland, OR.
Alex Gaynor
May 30, 2016
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Transcript
The cobbler's children have no shoes, or building better tools
for ourselves Alex Gaynor - PyCon 2016
About me • Director of the Python Software Foundation •
Open source contributor • Django, PyPy, CPython, pyca/cryptography, etc. • Washington, D.C. resident • Bagel and deli enthusiast • US Digital Service employee
A short history of tools
$ git init
None
Code review
Deployment automation
Emerging trends
CI for PRs
Linting (flake8, bandit, flake8-import-order, etc.)
Coverage Tracking
livegrep.com
github.com/facebook/mention-bot
Workflow
Build more tailored tools
Automation > Process
APIs!
Issues • Create an issue • Add/remove labels • Add
a comment • Assign to someone
Pull requests • Send a PR • Assign a PR
• Add/remove labels • Leave a code review • Add a commit status
Examples
$ pip install github3.py
import github3 gh_client = github3.login( os.environ["GITHUB_USERNAME"], os.environ["GITHUB_PASSWORD"], )
repo = gh_client.repository("django", "django")
HTTPS certificate expiration
def get_expiration_date(host): ssl_context = ssl.create_default_context() with closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as sock:
sock = ssl_context.wrap_socket(sock, server_hostname=host) sock.connect((host, 443)) expiration = ssl.cert_time_to_seconds(sock.getpeercert()["notAfter"]) return datetime.datetime.fromtimestamp(expiration)
while True: for host in MY_DOMAINS: expiration = get_expiration_date(host) if
expiration - datetime.datetime.now() < CUTOFF: file_an_issue(gh_client, host, expiration) time.sleep(3600)
def file_an_issue(gh_client, host, expiration): gh_client.create_issue( "django", "django", "Cert expiring soon:
{}".format(host), "The cert for `{}` expires on {}, get a new one!".format( host, expiration ), "alex", labels=["ssl-cert"] )
Auto-labeling
Web hooks
def github_webhook(request): event = request.headers.get("X-Github-Event") if event != "pull_request": return
Response(status=200) body = json.load(request.stream) if body.get("action") not in {"opened", "reopened", "synchronize"}: return Response(status=200)
issue = repo.issue(body["number"]) pr = repo.pull_request(issue.number) changed_files = (f.filename for
f in pr.iter_files()) if "django/utils/crypto.py" in changed_files: issue.add_labels("security")
Other ideas
requirements.txt bumper
UI change reviewer
Github Web hook UI Reviewer Comment Screenshots
Approval process commit status
Thanks! Questions? https://github.com/alex https://speakerdeck.com/alex