python-zulip-api/zulip/integrations/git/post-receive
Anders Kaseorg 53e59c8c09 Rename default branch to ‘main’
Signed-off-by: Anders Kaseorg <anders@zulip.com>
2021-08-24 12:50:52 -07:00

104 lines
3.3 KiB
Python
Executable file

#!/usr/bin/env python3
# Zulip notification post-receive hook.
#
# The "post-receive" script is run after receive-pack has accepted a pack
# and the repository has been updated. It is passed arguments in through
# stdin in the form
# <oldrev> <newrev> <refname>
# For example:
# aa453216d1b3e49e7f6f98441fa56946ddcd6a20 68f7abf4e6f922807889f52bc043ecd31b79f814 refs/heads/main
import os
import os.path
import subprocess
import sys
sys.path.insert(0, os.path.dirname(__file__))
import zulip_git_config as config
VERSION = "0.9"
if config.ZULIP_API_PATH is not None:
sys.path.append(config.ZULIP_API_PATH)
import zulip
client = zulip.Client(
email=config.ZULIP_USER,
site=config.ZULIP_SITE,
api_key=config.ZULIP_API_KEY,
client="ZulipGit/" + VERSION,
)
def git_repository_name() -> str:
output = subprocess.check_output(["git", "rev-parse", "--is-bare-repository"])
if output.strip() == "true":
return os.path.basename(os.getcwd())[: -len(".git")]
else:
return os.path.basename(os.path.dirname(os.getcwd()))
def git_commit_range(oldrev: str, newrev: str) -> str:
log_cmd = ["git", "log", "--reverse", "--pretty=%aE %H %s", f"{oldrev}..{newrev}"]
commits = ""
for ln in subprocess.check_output(log_cmd, universal_newlines=True).splitlines():
author_email, commit_id, subject = ln.split(None, 2)
if hasattr(config, "format_commit_message"):
commits += config.format_commit_message(author_email, subject, commit_id)
else:
commits += f"!avatar({author_email}) {subject}\n"
return commits
def send_bot_message(oldrev: str, newrev: str, refname: str) -> None:
repo_name = git_repository_name()
branch = refname.replace("refs/heads/", "")
destination = config.commit_notice_destination(repo_name, branch, newrev)
if destination is None:
# Don't forward the notice anywhere
return
new_head = newrev[:12]
old_head = oldrev[:12]
if (
oldrev == "0000000000000000000000000000000000000000"
or newrev == "0000000000000000000000000000000000000000"
):
# New branch pushed or old branch removed
added = ""
removed = ""
else:
added = git_commit_range(oldrev, newrev)
removed = git_commit_range(newrev, oldrev)
if oldrev == "0000000000000000000000000000000000000000":
message = f"`{new_head}` was pushed to new branch `{branch}`"
elif newrev == "0000000000000000000000000000000000000000":
message = f"branch `{branch}` was removed (was `{old_head}`)"
elif removed:
message = f"`{new_head}` was pushed to `{branch}`, **REMOVING**:\n\n{removed}"
if added:
message += "\n**and adding**:\n\n" + added
message += "\n**A HISTORY REWRITE HAS OCCURRED!**"
message += "\n@everyone: Please check your local branches to deal with this."
elif added:
message = f"`{new_head}` was deployed to `{branch}` with:\n\n{added}"
else:
message = f"`{new_head}` was pushed to `{branch}`... but nothing changed?"
message_data = {
"type": "stream",
"to": destination["stream"],
"subject": destination["subject"],
"content": message,
}
client.send_message(message_data)
for ln in sys.stdin:
oldrev, newrev, refname = ln.strip().split()
send_bot_message(oldrev, newrev, refname)