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)

     1

Checking how hg behaves when one side of a pull/push doesn't support

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some capability (because it's running an older hg version, usually).

     3

     4

  $ hg init repo1

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  $ cd repo1

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  $ echo a > a; hg add -q a; hg commit -q -m a

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  $ hg bookmark a

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  $ hg clone -q . ../repo2

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  $ cd ../repo2

    10

    11

  $ touch $TESTTMP/disable-lookup.py

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  $ disable_cap() {

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  >   rm -f $TESTTMP/disable-lookup.pyc # pyc caching is buggy

    14

  >   cat <<EOF > $TESTTMP/disable-lookup.py

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  > from mercurial import extensions, wireprotov1server

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  > def wcapabilities(orig, *args, **kwargs):

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  >   cap = orig(*args, **kwargs)

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  >   cap.remove(b'$1')

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  >   return cap

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  > extensions.wrapfunction(wireprotov1server, '_capabilities', wcapabilities)

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  > EOF

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  > }

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  $ cat >> ../repo1/.hg/hgrc <<EOF

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  > [extensions]

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  > disable-lookup = $TESTTMP/disable-lookup.py

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  > EOF

    27

    28

  $ hg pull ssh://user@dummy/repo1 -r tip -B a

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  pulling from ssh://user@dummy/repo1

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  no changes found

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    32

  $ disable_cap lookup

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  $ hg pull ssh://user@dummy/repo1 -r tip -B a

    34

  pulling from ssh://user@dummy/repo1

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  abort: other repository doesn't support revision lookup, so a rev cannot be specified.

    36

  [255]

    37

    38

  $ disable_cap pushkey

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  $ hg pull ssh://user@dummy/repo1 -r tip -B a

    40

  pulling from ssh://user@dummy/repo1

    41

  abort: remote bookmark a not found!

    42

  [10]