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bisect: avoid adding irrelevant revisions to bisect state...

bisect: avoid adding irrelevant revisions to bisect state When adding new revisions to the bisect state, it only makes sense to add information about revisions that are under consideration (i.e., those that are topologically between the known good and bad revisions). However, if the user passes in a revset (e.g., '!merge()' to exclude merge commits), hg will resolve the revset first and add all matching revisions to the bisect state (which in this case would likely be the majority of revisions in the repo). To avoid this, revisions should only be added to the bisect state if they are between the good and bad revisions (and therefore relevant to the bisection). -- Here are the results of some performance tests using the `mozilla-central` repo (since it is one of the largest freely-available hg repositories in the wild). These tests compare the performance of a locally-built `hg` before and after application of this series. Note that `--noupdate` is passed to avoid including update time (which should not vary across cases). Setup (run between each test): $ hg bisect --reset $ hg bisect --noupdate --bad $ hg bisect --noupdate --good Test using a revset that returns a very large number of revisions: $ time hg bisect --noupdate --skip '!merge()' > /dev/null Before: real 0m9.398s user 0m9.233s sys 0m0.120s After: real 0m1.513s user 0m1.425s sys 0m0.052s Test using a revset that is expensive to compute: $ time hg bisect --noupdate --skip 'desc("Bug")' > /dev/null Before: real 0m49.853s user 0m49.580s sys 0m0.243s After: real 0m4.120s user 0m4.036s sys 0m0.048s

Gregory Szorc - - Load All Authors

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             test-narrow-clone-non-narrow-server.t
        
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      Test attempting a narrow clone against a server that doesn't support narrowhg.

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

        $ hg init master

        $ cd master

        $ for x in `$TESTDIR/seq.py 10`; do

        >   echo $x > "f$x"

        >   hg add "f$x"

        >   hg commit -m "Add $x"

        > done

        $ hg serve -a localhost -p $HGPORT1 --config extensions.narrow=! -d \

        >    --pid-file=hg.pid

        $ cat hg.pid >> "$DAEMON_PIDS"

        $ hg serve -a localhost -p $HGPORT2 -d --pid-file=hg.pid

        $ cat hg.pid >> "$DAEMON_PIDS"

      Verify that narrow is advertised in the bundle2 capabilities:

        $ cat >> unquote.py <<EOF

        > import sys

        > if sys.version[0] == '3':

        >     import urllib.parse as up

        >     unquote = up.unquote_plus

        > else:

        >     import urllib

        >     unquote = urllib.unquote_plus

        > print(unquote(list(sys.stdin)[1]))

        > EOF

        $ echo hello | hg -R . serve --stdio | \

        >   "$PYTHON" unquote.py | tr ' ' '\n' | grep narrow

        exp-narrow-1

        $ cd ..

        $ hg clone --narrow --include f1 http://localhost:$HGPORT1/ narrowclone

        requesting all changes

        abort: server does not support narrow clones

        [255]

      Make a narrow clone (via HGPORT2), then try to narrow and widen

      into it (from HGPORT1) to prove that narrowing is fine and widening fails

      gracefully:

        $ hg clone -r 0 --narrow --include f1 http://localhost:$HGPORT2/ narrowclone

        adding changesets

        adding manifests

        adding file changes

        added 1 changesets with 1 changes to 1 files

        new changesets * (glob)

        updating to branch default

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

        $ cd narrowclone

        $ hg tracked --addexclude f2 http://localhost:$HGPORT1/

        comparing with http://localhost:$HGPORT1/

        searching for changes

        looking for local changes to affected paths

        deleting unwanted files from working copy

        $ hg tracked --addinclude f1 http://localhost:$HGPORT1/

        nothing to widen or narrow

        $ hg tracked --addinclude f9 http://localhost:$HGPORT1/

        comparing with http://localhost:$HGPORT1/

        abort: server does not support narrow clones

        [255]

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				Test attempting a narrow clone against a server that doesn't support narrowhg.

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

				$ hg init master
				$ cd master

				$ for x in `$TESTDIR/seq.py 10`; do
				> echo $x > "f$x"
				> hg add "f$x"
				> hg commit -m "Add $x"
				> done

				$ hg serve -a localhost -p $HGPORT1 --config extensions.narrow=! -d \
				> --pid-file=hg.pid
				$ cat hg.pid >> "$DAEMON_PIDS"
				$ hg serve -a localhost -p $HGPORT2 -d --pid-file=hg.pid
				$ cat hg.pid >> "$DAEMON_PIDS"

				Verify that narrow is advertised in the bundle2 capabilities:

				$ cat >> unquote.py <<EOF
				> import sys
				> if sys.version[0] == '3':
				> import urllib.parse as up
				> unquote = up.unquote_plus
				> else:
				> import urllib
				> unquote = urllib.unquote_plus
				> print(unquote(list(sys.stdin)[1]))
				> EOF
				$ echo hello \| hg -R . serve --stdio \| \
				> "$PYTHON" unquote.py \| tr ' ' '\n' \| grep narrow
				exp-narrow-1

				$ cd ..

				$ hg clone --narrow --include f1 http://localhost:$HGPORT1/ narrowclone
				requesting all changes
				abort: server does not support narrow clones
				[255]

				Make a narrow clone (via HGPORT2), then try to narrow and widen
				into it (from HGPORT1) to prove that narrowing is fine and widening fails
				gracefully:
				$ hg clone -r 0 --narrow --include f1 http://localhost:$HGPORT2/ narrowclone
				adding changesets
				adding manifests
				adding file changes
				added 1 changesets with 1 changes to 1 files
				new changesets * (glob)
				updating to branch default
				1 files updated, 0 files merged, 0 files removed, 0 files unresolved
				$ cd narrowclone
				$ hg tracked --addexclude f2 http://localhost:$HGPORT1/
				comparing with http://localhost:$HGPORT1/
				searching for changes
				looking for local changes to affected paths
				deleting unwanted files from working copy

				$ hg tracked --addinclude f1 http://localhost:$HGPORT1/
				nothing to widen or narrow

				$ hg tracked --addinclude f9 http://localhost:$HGPORT1/
				comparing with http://localhost:$HGPORT1/
				abort: server does not support narrow clones
				[255]