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.
from mercurial import demandimport
demandimport.enable()
from mercurial import (
error,
pycompat,
ui as uimod,
url,
util,
)
from mercurial.utils import (
stringutil,
urlutil,
)
urlerr = util.urlerr
urlreq = util.urlreq
class myui(uimod.ui):
def interactive(self):
return False
origui = myui.load()
def writeauth(items):
ui = origui.copy()
for name, value in items.items():
ui.setconfig(b'auth', name, value)
return ui
def _stringifyauthinfo(ai):
if ai is None:
return ai
realm, authuris, user, passwd = ai
return (
pycompat.strurl(realm),
[pycompat.strurl(u) for u in authuris],
pycompat.strurl(user),
pycompat.strurl(passwd),
)
def test(auth, urls=None):
print('CFG:', pycompat.sysstr(stringutil.pprint(auth, bprefix=True)))
prefixes = set()
for k in auth:
prefixes.add(k.split(b'.', 1)[0])
for p in prefixes:
for name in (b'.username', b'.password'):
if (p + name) not in auth:
auth[p + name] = p
auth = {k: v for k, v in auth.items() if v is not None}
ui = writeauth(auth)
def _test(uri):
print('URI:', pycompat.strurl(uri))
try:
pm = url.passwordmgr(ui, urlreq.httppasswordmgrwithdefaultrealm())
u, authinfo = urlutil.url(uri).authinfo()
if authinfo is not None:
pm.add_password(*_stringifyauthinfo(authinfo))
print(
' ',
tuple(
pycompat.strurl(a)
for a in pm.find_user_password('test', pycompat.strurl(u))
),
)
except error.Abort:
print(' ', 'abort')
if not urls:
urls = [
b'http://example.org/foo',
b'http://example.org/foo/bar',
b'http://example.org/bar',
b'https://example.org/foo',
b'https://example.org/foo/bar',
b'https://example.org/bar',
b'https://x@example.org/bar',
b'https://y@example.org/bar',
]
for u in urls:
_test(u)
print('\n*** Test in-uri schemes\n')
test({b'x.prefix': b'http://example.org'})
test({b'x.prefix': b'https://example.org'})
test({b'x.prefix': b'http://example.org', b'x.schemes': b'https'})
test({b'x.prefix': b'https://example.org', b'x.schemes': b'http'})
print('\n*** Test separately configured schemes\n')
test({b'x.prefix': b'example.org', b'x.schemes': b'http'})
test({b'x.prefix': b'example.org', b'x.schemes': b'https'})
test({b'x.prefix': b'example.org', b'x.schemes': b'http https'})
print('\n*** Test prefix matching\n')
test(
{
b'x.prefix': b'http://example.org/foo',
b'y.prefix': b'http://example.org/bar',
}
)
test(
{
b'x.prefix': b'http://example.org/foo',
b'y.prefix': b'http://example.org/foo/bar',
}
)
test({b'x.prefix': b'*', b'y.prefix': b'https://example.org/bar'})
print('\n*** Test user matching\n')
test(
{
b'x.prefix': b'http://example.org/foo',
b'x.username': None,
b'x.password': b'xpassword',
},
urls=[b'http://y@example.org/foo'],
)
test(
{
b'x.prefix': b'http://example.org/foo',
b'x.username': None,
b'x.password': b'xpassword',
b'y.prefix': b'http://example.org/foo',
b'y.username': b'y',
b'y.password': b'ypassword',
},
urls=[b'http://y@example.org/foo'],
)
test(
{
b'x.prefix': b'http://example.org/foo/bar',
b'x.username': None,
b'x.password': b'xpassword',
b'y.prefix': b'http://example.org/foo',
b'y.username': b'y',
b'y.password': b'ypassword',
},
urls=[b'http://y@example.org/foo/bar'],
)
print('\n*** Test user matching with name in prefix\n')
# prefix, username and URL have the same user
test(
{
b'x.prefix': b'https://example.org/foo',
b'x.username': None,
b'x.password': b'xpassword',
b'y.prefix': b'http://y@example.org/foo',
b'y.username': b'y',
b'y.password': b'ypassword',
},
urls=[b'http://y@example.org/foo'],
)
# Prefix has a different user from username and URL
test(
{
b'y.prefix': b'http://z@example.org/foo',
b'y.username': b'y',
b'y.password': b'ypassword',
},
urls=[b'http://y@example.org/foo'],
)
# Prefix has a different user from URL; no username
test(
{b'y.prefix': b'http://z@example.org/foo', b'y.password': b'ypassword'},
urls=[b'http://y@example.org/foo'],
)
# Prefix and URL have same user, but doesn't match username
test(
{
b'y.prefix': b'http://y@example.org/foo',
b'y.username': b'z',
b'y.password': b'ypassword',
},
urls=[b'http://y@example.org/foo'],
)
# Prefix and URL have the same user; no username
test(
{b'y.prefix': b'http://y@example.org/foo', b'y.password': b'ypassword'},
urls=[b'http://y@example.org/foo'],
)
# Prefix user, but no URL user or username
test(
{b'y.prefix': b'http://y@example.org/foo', b'y.password': b'ypassword'},
urls=[b'http://example.org/foo'],
)
def testauthinfo(fullurl, authurl):
print('URIs:', fullurl, authurl)
pm = urlreq.httppasswordmgrwithdefaultrealm()
ai = _stringifyauthinfo(
urlutil.url(pycompat.bytesurl(fullurl)).authinfo()[1]
)
pm.add_password(*ai)
print(pm.find_user_password('test', authurl))
print('\n*** Test urllib2 and urlutil.url\n')
testauthinfo('http://user@example.com:8080/foo', 'http://example.com:8080/foo')