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

  $ hg init repo

     2

  $ cd repo

     3

     4

  $ touch a

     5

  $ hg add a

     6

  $ hg commit -m "Added a"

     7

     8

  $ touch main

     9

  $ hg add main

    10

  $ hg commit -m "Added main"

    11

  $ hg checkout 0

    12

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

    13

    14

'main' should be gone:

    15

    16

  $ ls -A

    17

  .hg

    18

  a

    19

    20

  $ touch side1

    21

  $ hg add side1

    22

  $ hg commit -m "Added side1"

    23

  created new head

    24

  $ touch side2

    25

  $ hg add side2

    26

  $ hg commit -m "Added side2"

    27

    28

  $ hg log

    29

  changeset:   3:91ebc10ed028

    30

  tag:         tip

    31

  user:        test

    32

  date:        Thu Jan 01 00:00:00 1970 +0000

    33

  summary:     Added side2

    34

    35

  changeset:   2:b932d7dbb1e1

    36

  parent:      0:c2eda428b523

    37

  user:        test

    38

  date:        Thu Jan 01 00:00:00 1970 +0000

    39

  summary:     Added side1

    40

    41

  changeset:   1:71a760306caf

    42

  user:        test

    43

  date:        Thu Jan 01 00:00:00 1970 +0000

    44

  summary:     Added main

    45

    46

  changeset:   0:c2eda428b523

    47

  user:        test

    48

  date:        Thu Jan 01 00:00:00 1970 +0000

    49

  summary:     Added a

    50

    51

    52

  $ hg heads

    53

  changeset:   3:91ebc10ed028

    54

  tag:         tip

    55

  user:        test

    56

  date:        Thu Jan 01 00:00:00 1970 +0000

    57

  summary:     Added side2

    58

    59

  changeset:   1:71a760306caf

    60

  user:        test

    61

  date:        Thu Jan 01 00:00:00 1970 +0000

    62

  summary:     Added main

    63

    64

  $ ls -A

    65

  .hg

    66

  a

    67

  side1

    68

  side2

    69

    70

  $ hg update --debug -C 1

    71

  resolving manifests

    72

   branchmerge: False, force: True, partial: False

    73

   ancestor: 91ebc10ed028+, local: 91ebc10ed028+, remote: 71a760306caf

    74

   side1: other deleted -> r

    75

  removing side1

    76

   side2: other deleted -> r

    77

  removing side2

    78

   main: remote created -> g

    79

  getting main

    80

  1 files updated, 0 files merged, 2 files removed, 0 files unresolved

    81

    82

  $ ls -A

    83

  .hg

    84

  a

    85

  main

    86