zulip/scripts/setup/compare-settings-to-template

73 lines
2.0 KiB
Python
Executable File

#!/usr/bin/env python3
import difflib
import os
import re
import sys
BASE_DIR = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
sys.path.append(BASE_DIR)
from scripts.lib.setup_path import setup_path
setup_path()
current_path = "/etc/zulip/settings.py"
if len(sys.argv) >= 2:
current_path = sys.argv[1]
print(f"Reading current configuration from {current_path}...")
with open(current_path) as f:
current_contents = f.read()
import requests
print("Fetching old versions of setting templates from Github...")
templ = {}
url: str | None = "https://api.github.com/repos/zulip/zulip/tags?per_page=100"
while url is not None:
resp = requests.get(url)
if resp.status_code != 200:
print(resp.content)
sys.exit(1)
url = resp.links.get("next", {}).get("url")
for tag in [t["name"] for t in resp.json()]:
if not re.match(r"^\d+\.\d+(\.\d+)?$", tag):
continue
filename = "zproject/prod_settings_template.py"
if [int(x) for x in tag.split(".")] < [1, 4]:
filename = "zproject/local_settings_template.py"
print(f" - {tag}")
resp = requests.get(
f"https://raw.githubusercontent.com/zulip/zulip/{tag}/{filename}",
)
if resp.status_code == 200:
templ[tag] = resp.content.decode()
else:
print("Failure: ")
print(resp)
print("Computing minimal difference...")
sequence_matchers = {}
for version, contents in templ.items():
sm = difflib.SequenceMatcher(None, current_contents, contents)
sequence_matchers[version] = sm
likely = sorted(sequence_matchers.keys(), key=lambda v: sequence_matchers[v].ratio(), reverse=True)
print(f"Most likely version: {likely[0]}")
diff = difflib.unified_diff(
templ[likely[0]].splitlines(keepends=True),
current_contents.splitlines(keepends=True),
fromfile=f"zulip-server-{version}/zproject/prod_settings_template.py",
tofile=current_path,
)
print()
print("".join(diff), end="")