outgoing: add a simple fastpath when there is no common
This further speed up case like `hg bundle --all` for larger repository.
### data-env-vars.name = mozilla-try-2023-03-22-zstd-sparse-revlog
# benchmark.name = hg.command.bundle
# bin-env-vars.hg.flavor = default
# bin-env-vars.hg.py-re2-module = default
# benchmark.variants.revs = all
# benchmark.variants.type = none-streamv2
before: 316.749699
after: 311.165461 (-1.76%, -5.58)
There is further work to be done in this area like not doing any outgoing
computation in the stream case for example. however the recent changes already
gives use a large win for a small amount of local work.
### benchmark.name = hg.command.bundle
# bin-env-vars.hg.flavor = default
# bin-env-vars.hg.py-re2-module = default
# benchmark.variants.revs = all
# benchmark.variants.type = none-streamv2
## data-env-vars.name = mercurial-public-2024-03-22-zstd-sparse-revlog
pre-%ln-change: 1.263859
the-%ln-change: 0.700229 (-44.60%, -0.56)
prev-changeset: 0.496050 (-60.75%, -0.77)
this-changeset: 0.495243 (-60.81%, -0.77)
## data-env-vars.name = tryton-public-2024-03-22-zstd-sparse-revlog
pre-%ln-change: 2.975765
the-%ln-change: 1.870798 (-37.13%, -1.10)
prev-changeset: 1.461583 (-50.88%, -1.51)
this-changeset: 1.469185 (-50.63%, -1.51)
## data-env-vars.name = pypy-2024-03-22-zstd-sparse-revlog
pre-%ln-change: 4.540080
the-%ln-change: 3.401700 (-25.07%, -1.14)
prev-changeset: 2.915810 (-35.78%, -1.62)
this-changeset: 2.911643 (-35.87%, -1.63)
## data-env-vars.name = heptapod-public-2024-03-25-zstd-sparse-revlog
pre-%ln-change: 10.138396
the-%ln-change: 7.750458 (-23.55%, -2.39)
prev-changeset: 6.665565 (-34.25%, -3.47)
this-changeset: 6.672078 (-34.19%, -3.47)
## data-env-vars.name = mozilla-try-2023-03-22-zstd-sparse-revlog
pre-%ln-change: 399.484481
the-%ln-change: 346.508952 (-13.26%, -52.98)
prev-changeset: 316.749699 (-20.71%, -82.73)
this-changeset: 311.165461 (-22.11%, -88.32)
# Tests to ensure that sha1dc.sha1 is exactly a drop-in for
# hashlib.sha1 for our needs.
import hashlib
import unittest
import silenttestrunner
try:
from mercurial.thirdparty import sha1dc
except ImportError:
sha1dc = None
class hashertestsbase:
def test_basic_hash(self):
h = self.hasher()
h.update(b'foo')
self.assertEqual(
'0beec7b5ea3f0fdbc95d0dd47f3c5bc275da8a33', h.hexdigest()
)
h.update(b'bar')
self.assertEqual(
'8843d7f92416211de9ebb963ff4ce28125932878', h.hexdigest()
)
def test_copy_hasher(self):
h = self.hasher()
h.update(b'foo')
h2 = h.copy()
h.update(b'baz')
h2.update(b'bar')
self.assertEqual(
'21eb6533733a5e4763acacd1d45a60c2e0e404e1', h.hexdigest()
)
self.assertEqual(
'8843d7f92416211de9ebb963ff4ce28125932878', h2.hexdigest()
)
def test_init_hasher(self):
h = self.hasher(b'initial string')
self.assertEqual(
b'\xc9y|n\x1f3S\xa4:\xbaJ\xca,\xc1\x1a\x9e\xb8\xd8\xdd\x86',
h.digest(),
)
def test_bytes_like_types(self):
h = self.hasher()
h.update(bytearray(b'foo'))
h.update(memoryview(b'baz'))
self.assertEqual(
'21eb6533733a5e4763acacd1d45a60c2e0e404e1', h.hexdigest()
)
h = self.hasher(bytearray(b'foo'))
h.update(b'baz')
self.assertEqual(
'21eb6533733a5e4763acacd1d45a60c2e0e404e1', h.hexdigest()
)
h = self.hasher(memoryview(b'foo'))
h.update(b'baz')
self.assertEqual(
'21eb6533733a5e4763acacd1d45a60c2e0e404e1', h.hexdigest()
)
class hashlibtests(unittest.TestCase, hashertestsbase):
hasher = hashlib.sha1
if sha1dc:
class sha1dctests(unittest.TestCase, hashertestsbase):
hasher = sha1dc.sha1
if __name__ == '__main__':
silenttestrunner.main(__name__)