branchcache: add a "pure topological head" fast path
In a narrow but actually quick common case, all topological heads are all on
the same branch and all open. In this case, computing the branch map is very
simple. We can quickly detect situation where this situation will not change.
So we update the V3 format to be able to express this situation and upgrade the
update code to detect we remains in that mode.
The branch cache is populated with the actual value when the branch map is
accessed, but the update_disk method can do the update without needing to
populate it.
import unittest
from mercurial.hgweb import request as requestmod
from mercurial import error, pycompat
DEFAULT_ENV = {
'REQUEST_METHOD': 'GET',
'SERVER_NAME': 'testserver',
'SERVER_PORT': '80',
'SERVER_PROTOCOL': 'http',
'wsgi.version': (1, 0),
'wsgi.url_scheme': 'http',
'wsgi.input': None,
'wsgi.errors': None,
'wsgi.multithread': False,
'wsgi.multiprocess': True,
'wsgi.run_once': False,
}
def parse(env, reponame=None, altbaseurl=None, extra=None):
env = dict(env)
env.update(extra or {})
return requestmod.parserequestfromenv(
env, reponame=reponame, altbaseurl=altbaseurl
)
class ParseRequestTests(unittest.TestCase):
def testdefault(self):
r = parse(DEFAULT_ENV)
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.method, b'GET')
self.assertIsNone(r.remoteuser)
self.assertIsNone(r.remotehost)
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [])
self.assertIsNone(r.dispatchpath)
self.assertIsNone(r.reponame)
self.assertEqual(r.querystring, b'')
self.assertEqual(len(r.qsparams), 0)
self.assertEqual(len(r.headers), 0)
def testcustomport(self):
r = parse(
DEFAULT_ENV,
extra={
'SERVER_PORT': '8000',
},
)
self.assertEqual(r.url, b'http://testserver:8000')
self.assertEqual(r.baseurl, b'http://testserver:8000')
self.assertEqual(r.advertisedurl, b'http://testserver:8000')
self.assertEqual(r.advertisedbaseurl, b'http://testserver:8000')
r = parse(
DEFAULT_ENV,
extra={
'SERVER_PORT': '4000',
'wsgi.url_scheme': 'https',
},
)
self.assertEqual(r.url, b'https://testserver:4000')
self.assertEqual(r.baseurl, b'https://testserver:4000')
self.assertEqual(r.advertisedurl, b'https://testserver:4000')
self.assertEqual(r.advertisedbaseurl, b'https://testserver:4000')
def testhttphost(self):
r = parse(
DEFAULT_ENV,
extra={
'HTTP_HOST': 'altserver',
},
)
self.assertEqual(r.url, b'http://altserver')
self.assertEqual(r.baseurl, b'http://altserver')
self.assertEqual(r.advertisedurl, b'http://testserver')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
def testscriptname(self):
r = parse(
DEFAULT_ENV,
extra={
'SCRIPT_NAME': '',
},
)
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [])
self.assertIsNone(r.dispatchpath)
r = parse(
DEFAULT_ENV,
extra={
'SCRIPT_NAME': '/script',
},
)
self.assertEqual(r.url, b'http://testserver/script')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver/script')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'/script')
self.assertEqual(r.dispatchparts, [])
self.assertIsNone(r.dispatchpath)
r = parse(
DEFAULT_ENV,
extra={
'SCRIPT_NAME': '/multiple words',
},
)
self.assertEqual(r.url, b'http://testserver/multiple%20words')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver/multiple%20words')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'/multiple words')
self.assertEqual(r.dispatchparts, [])
self.assertIsNone(r.dispatchpath)
def testpathinfo(self):
r = parse(
DEFAULT_ENV,
extra={
'PATH_INFO': '',
},
)
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [])
self.assertEqual(r.dispatchpath, b'')
r = parse(
DEFAULT_ENV,
extra={
'PATH_INFO': '/pathinfo',
},
)
self.assertEqual(r.url, b'http://testserver/pathinfo')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver/pathinfo')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [b'pathinfo'])
self.assertEqual(r.dispatchpath, b'pathinfo')
r = parse(
DEFAULT_ENV,
extra={
'PATH_INFO': '/one/two/',
},
)
self.assertEqual(r.url, b'http://testserver/one/two/')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver/one/two/')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [b'one', b'two'])
self.assertEqual(r.dispatchpath, b'one/two')
def testscriptandpathinfo(self):
r = parse(
DEFAULT_ENV,
extra={
'SCRIPT_NAME': '/script',
'PATH_INFO': '/pathinfo',
},
)
self.assertEqual(r.url, b'http://testserver/script/pathinfo')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver/script/pathinfo')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'/script')
self.assertEqual(r.dispatchparts, [b'pathinfo'])
self.assertEqual(r.dispatchpath, b'pathinfo')
r = parse(
DEFAULT_ENV,
extra={
'SCRIPT_NAME': '/script1/script2',
'PATH_INFO': '/path1/path2',
},
)
self.assertEqual(
r.url, b'http://testserver/script1/script2/path1/path2'
)
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(
r.advertisedurl, b'http://testserver/script1/script2/path1/path2'
)
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'/script1/script2')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
r = parse(
DEFAULT_ENV,
extra={
'HTTP_HOST': 'hostserver',
'SCRIPT_NAME': '/script',
'PATH_INFO': '/pathinfo',
},
)
self.assertEqual(r.url, b'http://hostserver/script/pathinfo')
self.assertEqual(r.baseurl, b'http://hostserver')
self.assertEqual(r.advertisedurl, b'http://testserver/script/pathinfo')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'/script')
self.assertEqual(r.dispatchparts, [b'pathinfo'])
self.assertEqual(r.dispatchpath, b'pathinfo')
if not getattr(unittest.TestCase, 'assertRaisesRegex', False):
# Python 3.7 deprecates the regex*p* version, but 2.7 lacks
# the regex version.
assertRaisesRegex = ( # camelcase-required
unittest.TestCase.assertRaisesRegexp
)
def testreponame(self):
"""repository path components get stripped from URL."""
with self.assertRaisesRegex(
error.ProgrammingError, 'reponame requires PATH_INFO'
):
parse(DEFAULT_ENV, reponame=b'repo')
with self.assertRaisesRegex(
error.ProgrammingError, 'PATH_INFO does not begin with repo ' 'name'
):
parse(
DEFAULT_ENV,
reponame=b'repo',
extra={
'PATH_INFO': '/pathinfo',
},
)
with self.assertRaisesRegex(
error.ProgrammingError, 'reponame prefix of PATH_INFO'
):
parse(
DEFAULT_ENV,
reponame=b'repo',
extra={
'PATH_INFO': '/repoextra/path',
},
)
r = parse(
DEFAULT_ENV,
reponame=b'repo',
extra={
'PATH_INFO': '/repo/path1/path2',
},
)
self.assertEqual(r.url, b'http://testserver/repo/path1/path2')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://testserver/repo/path1/path2')
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'/repo')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
self.assertEqual(r.reponame, b'repo')
r = parse(
DEFAULT_ENV,
reponame=b'prefix/repo',
extra={
'PATH_INFO': '/prefix/repo/path1/path2',
},
)
self.assertEqual(r.url, b'http://testserver/prefix/repo/path1/path2')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(
r.advertisedurl, b'http://testserver/prefix/repo/path1/path2'
)
self.assertEqual(r.advertisedbaseurl, b'http://testserver')
self.assertEqual(r.apppath, b'/prefix/repo')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
self.assertEqual(r.reponame, b'prefix/repo')
def testaltbaseurl(self):
# Simple hostname remap.
r = parse(DEFAULT_ENV, altbaseurl=b'http://altserver')
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://altserver')
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [])
self.assertIsNone(r.dispatchpath)
self.assertIsNone(r.reponame)
# With a custom port.
r = parse(DEFAULT_ENV, altbaseurl=b'http://altserver:8000')
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://altserver:8000')
self.assertEqual(r.advertisedbaseurl, b'http://altserver:8000')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [])
self.assertIsNone(r.dispatchpath)
self.assertIsNone(r.reponame)
# With a changed protocol.
r = parse(DEFAULT_ENV, altbaseurl=b'https://altserver')
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'https://altserver')
self.assertEqual(r.advertisedbaseurl, b'https://altserver')
# URL scheme is defined as the actual scheme, not advertised.
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [])
self.assertIsNone(r.dispatchpath)
self.assertIsNone(r.reponame)
# Need to specify explicit port number for proper https:// alt URLs.
r = parse(DEFAULT_ENV, altbaseurl=b'https://altserver:443')
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'https://altserver')
self.assertEqual(r.advertisedbaseurl, b'https://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [])
self.assertIsNone(r.dispatchpath)
self.assertIsNone(r.reponame)
# With only PATH_INFO defined.
r = parse(
DEFAULT_ENV,
altbaseurl=b'http://altserver',
extra={
'PATH_INFO': '/path1/path2',
},
)
self.assertEqual(r.url, b'http://testserver/path1/path2')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://altserver/path1/path2')
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
self.assertIsNone(r.reponame)
# Path on alt URL.
r = parse(DEFAULT_ENV, altbaseurl=b'http://altserver/altpath')
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://altserver/altpath')
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'/altpath')
self.assertEqual(r.dispatchparts, [])
self.assertIsNone(r.dispatchpath)
self.assertIsNone(r.reponame)
# With a trailing slash.
r = parse(DEFAULT_ENV, altbaseurl=b'http://altserver/altpath/')
self.assertEqual(r.url, b'http://testserver')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://altserver/altpath/')
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'/altpath/')
self.assertEqual(r.dispatchparts, [])
self.assertIsNone(r.dispatchpath)
self.assertIsNone(r.reponame)
# PATH_INFO + path on alt URL.
r = parse(
DEFAULT_ENV,
altbaseurl=b'http://altserver/altpath',
extra={
'PATH_INFO': '/path1/path2',
},
)
self.assertEqual(r.url, b'http://testserver/path1/path2')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(
r.advertisedurl, b'http://altserver/altpath/path1/path2'
)
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'/altpath')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
self.assertIsNone(r.reponame)
# PATH_INFO + path on alt URL with trailing slash.
r = parse(
DEFAULT_ENV,
altbaseurl=b'http://altserver/altpath/',
extra={
'PATH_INFO': '/path1/path2',
},
)
self.assertEqual(r.url, b'http://testserver/path1/path2')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(
r.advertisedurl, b'http://altserver/altpath//path1/path2'
)
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'/altpath/')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
self.assertIsNone(r.reponame)
# Local SCRIPT_NAME is ignored.
r = parse(
DEFAULT_ENV,
altbaseurl=b'http://altserver',
extra={
'SCRIPT_NAME': '/script',
'PATH_INFO': '/path1/path2',
},
)
self.assertEqual(r.url, b'http://testserver/script/path1/path2')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(r.advertisedurl, b'http://altserver/path1/path2')
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
self.assertIsNone(r.reponame)
# Use remote's path for script name, app path
r = parse(
DEFAULT_ENV,
altbaseurl=b'http://altserver/altroot',
extra={
'SCRIPT_NAME': '/script',
'PATH_INFO': '/path1/path2',
},
)
self.assertEqual(r.url, b'http://testserver/script/path1/path2')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(
r.advertisedurl, b'http://altserver/altroot/path1/path2'
)
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.urlscheme, b'http')
self.assertEqual(r.apppath, b'/altroot')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
self.assertIsNone(r.reponame)
# reponame is factored in properly.
r = parse(
DEFAULT_ENV,
reponame=b'repo',
altbaseurl=b'http://altserver/altroot',
extra={
'SCRIPT_NAME': '/script',
'PATH_INFO': '/repo/path1/path2',
},
)
self.assertEqual(r.url, b'http://testserver/script/repo/path1/path2')
self.assertEqual(r.baseurl, b'http://testserver')
self.assertEqual(
r.advertisedurl, b'http://altserver/altroot/repo/path1/path2'
)
self.assertEqual(r.advertisedbaseurl, b'http://altserver')
self.assertEqual(r.apppath, b'/altroot/repo')
self.assertEqual(r.dispatchparts, [b'path1', b'path2'])
self.assertEqual(r.dispatchpath, b'path1/path2')
self.assertEqual(r.reponame, b'repo')
def testenvencoding(self):
b = b''.join(pycompat.bytechr(i) for i in range(256))
r = parse(DEFAULT_ENV, extra={'foo': b.decode('iso8859-1')})
self.assertEqual(r.rawenv[b'foo'], b)
if __name__ == '__main__':
import silenttestrunner
silenttestrunner.main(__name__)