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 test-repo

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  $ . "$TESTDIR/helpers-testrepo.sh"

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  $ cat <<'EOF' > scanhelptopics.py

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  > import re

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  > import sys

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  > if sys.platform == "win32":

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  >     import msvcrt

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  >     import os

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  >     msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)

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  > stdout = getattr(sys.stdout, 'buffer', sys.stdout)

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  > topics = set()

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  > topicre = re.compile(br':hg:`help ([a-z0-9\-.]+)`')

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  > for fname in sys.argv:

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  >     with open(fname, 'rb') as f:

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  >         topics.update(m.group(1) for m in topicre.finditer(f.read()))

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  > for s in sorted(topics):

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  >     stdout.write(b'%s\n' % s)

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  > EOF

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  $ cd "$TESTDIR"/..

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Check if ":hg:`help TOPIC`" is valid:

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(use "xargs -n1 -t" to see which help commands are executed)

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  $ testrepohg files 'glob:{hgdemandimport,hgext,mercurial}/**/*.py' \

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  > | sed 's|\\|/|g' \

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  > | xargs "$PYTHON" "$TESTTMP/scanhelptopics.py" \

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  > | xargs -n1 hg help --config extensions.phabricator= > /dev/null