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 no-windows

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  $ . "$TESTDIR/remotefilelog-library.sh"

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  $ hg init master

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  $ cd master

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  $ cat >> .hg/hgrc <<EOF

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  > [remotefilelog]

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  > server=True

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  > EOF

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  $ echo x > x

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  $ hg commit -qAm x

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  $ echo y >> x

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  $ hg commit -qAm y

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  $ echo z >> x

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  $ hg commit -qAm z

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  $ hg update 1

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

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  $ echo w >> x

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  $ hg commit -qAm w

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  $ cd ..

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Shallow clone and activate getflogheads testing extension

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  $ hgcloneshallow ssh://user@dummy/master shallow --noupdate

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  streaming all changes

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  3 files to transfer, 908 bytes of data (no-rust !)

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  transferred 908 bytes in * seconds (*/sec) (glob) (no-rust !)

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  5 files to transfer, 1.01 KB of data (rust !)

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  transferred 1.01 KB in * seconds (* */sec) (glob) (rust !)

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  searching for changes

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  no changes found

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  $ cd shallow

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  $ cat >> .hg/hgrc <<EOF

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  > [extensions]

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  > getflogheads=$TESTDIR/remotefilelog-getflogheads.py

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  > EOF

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Get heads of a remotefilelog

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  $ hg getflogheads x

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  2797809ca5e9c2f307d82b1345e832f655fb99a2

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  ca758b402ddc91e37e3113e1a97791b537e1b7bb

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Get heads of a non-existing remotefilelog

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  $ hg getflogheads y

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  EMPTY