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)

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#require execbit

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Create extension that can disable exec checks:

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  $ cat > noexec.py <<EOF

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  > from mercurial import extensions, util

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  > def setflags(orig, f, l, x):

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  >     pass

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  > def checkexec(orig, path):

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  >     return False

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  > def extsetup(ui):

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  >     extensions.wrapfunction(util, 'setflags', setflags)

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  >     extensions.wrapfunction(util, 'checkexec', checkexec)

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  > EOF

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  $ hg init unix-repo

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  $ cd unix-repo

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  $ touch a

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  $ hg add a

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  $ hg commit -m 'unix: add a'

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  $ hg clone . ../win-repo

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  updating to branch default

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  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

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  $ chmod +x a

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  $ hg commit -m 'unix: chmod a'

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  $ hg manifest -v

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  755 * a

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  $ cd ../win-repo

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  $ touch b

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  $ hg add b

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  $ hg commit -m 'win: add b'

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  $ hg manifest -v

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  644   a

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  644   b

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  $ hg pull

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  pulling from $TESTTMP/unix-repo

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  searching for changes

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  adding changesets

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  adding manifests

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  adding file changes

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  added 1 changesets with 0 changes to 0 files (+1 heads)

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  new changesets 2d8bcf2dda39

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  (run 'hg heads' to see heads, 'hg merge' to merge)

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  $ hg manifest -v -r tip

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  755 * a

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Simulate a Windows merge:

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  $ hg --config extensions.n=$TESTTMP/noexec.py merge --debug

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  resolving manifests

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   branchmerge: True, force: False, partial: False

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   ancestor: a03b0deabf2b, local: d6fa54f68ae1+, remote: 2d8bcf2dda39

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   a: update permissions -> e

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  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

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  (branch merge, don't forget to commit)

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Simulate a Windows commit:

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  $ hg --config extensions.n=$TESTTMP/noexec.py commit -m 'win: merge'

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  $ hg manifest -v

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  755 * a

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  644   b

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  $ cd ..