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@brettcannon
Last active Nov 28, 2017
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hg.python.org/lookup
# hglookup.py
#
# Lookup a revision hash in a bunch of different hgwebdir repos.
# Also includes special treatment for subversion revisions from
# the CPython repo.
#
# Written by Georg Brandl, 2010.
import io
import json
import os
from wsgiref.simple_server import make_server
class hglookup(object):
def __init__(self, hg_commits, verbose=False):
self.verbose = verbose
hg_commits = set(hg_commits)
hg_commits.update(commit[:12] for commit in list(hg_commits))
self.hg_commits = frozenset(hg_commits)
def successful_response(self, response, url):
content_type = 'text/plain'
headers = [("Content-Type", 'text/plain'),
("Location", url)]
response("303 See Other", headers)
return []
def failed_response(self, response):
response("404 Not Found", [('Content-Type', 'text/plain')])
return ['Usage: /lookup/GITHEXHASH or gitGITHEXHASH (10, 11, or 40 hex characters)\n',
'/lookup/HGHEXNODE or hgHGHEXNODE (12 or 40 hex characters)\n',
'/lookup/rSVNREVISION\n']
def __call__(self, env, response):
node = env.get('PATH_INFO', '').strip('/')
if not node:
return self.failed_response(response)
elif node.startswith('hg') or node in self.hg_commits:
if node.startswith('hg'):
node = node[len('hg'):]
url = 'https://hg.python.org/cpython/rev/' + node
return self.successful_response(response, url)
elif node.startswith('r'):
url = 'http://svn.python.org/view?view=revision&revision=' + node[1:]
return self.successful_response(response, url)
elif not node.startswith('git') and len(node) not in {10, 11, 40}:
return self.failed_response(response)
else:
if node.startswith('git'):
node = node[len('git'):]
url = 'https://github.com/python/cpython/commit/' + node
return self.successful_response(response, url)
if __name__ == '__main__':
HG_COMMITS = 'hg_commits.json'
print "Loading hg commits from the JSON file ..."
# Use `hg log --template "\"{node}\",\n` to help generate the JSON file.
with io.open(HG_COMMITS, 'r', encoding="utf-8") as file:
hg_commits = json.load(file)
application = hglookup(hg_commits, verbose=True)
httpd = make_server('', 8123, application)
sa = httpd.socket.getsockname()
print "Serving HTTP on", sa[0], "port", sa[1], "..."
httpd.serve_forever()
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