##// END OF EJS Templates
revset: optimize "draft() & ::x" pattern...
revset: optimize "draft() & ::x" pattern The `draft() & ::x` type query could be common for selecting one or more draft feature branches being worked on. Before this patch, `::x` may travel through the changelog DAG for a long distance until it gets a smaller revision number than `min(draft())`. It could be very slow on long changelog with distant (in terms of revision numbers) drafts. This patch adds a fast path for this situation, and will stop traveling the changelog DAG once `::x` hits a non-draft revision. The fast path also works for `secret()` and `not public()`. To measure the performance difference, I used drawdag to create a repo that emulates distant drafts: DRAFT4 | DRAFT3 # draft / PUBLIC9999 # public | PUBLIC9998 | . DRAFT2 . | . DRAFT1 # draft | / PUBLIC0001 # public And measured the performance using the repo: (BEFORE) $ hg perfrevset 'draft() & ::(DRAFT2+DRAFT4)' ! wall 0.017132 comb 0.010000 user 0.010000 sys 0.000000 (best of 156) $ hg perfrevset 'draft() & ::(all())' ! wall 0.024221 comb 0.030000 user 0.030000 sys 0.000000 (best of 113) (AFTER) $ hg perfrevset 'draft() & ::(DRAFT2+DRAFT4)' ! wall 0.000243 comb 0.000000 user 0.000000 sys 0.000000 (best of 9303) $ hg perfrevset 'draft() & ::(all())' ! wall 0.004319 comb 0.000000 user 0.000000 sys 0.000000 (best of 655) Differential Revision: https://phab.mercurial-scm.org/D441

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pager.txt
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Some Mercurial commands can produce a lot of output, and Mercurial will
attempt to use a pager to make those commands more pleasant.
To set the pager that should be used, set the application variable::
[pager]
pager = less -FRX
If no pager is set in the user or repository configuration, Mercurial uses the
environment variable $PAGER. If $PAGER is not set, pager.pager from the default
or system configuration is used. If none of these are set, a default pager will
be used, typically `less` on Unix and `more` on Windows.
.. container:: windows
On Windows, `more` is not color aware, so using it effectively disables color.
MSYS and Cygwin shells provide `less` as a pager, which can be configured to
support ANSI color codes. See :hg:`help config.color.pagermode` to configure
the color mode when invoking a pager.
You can disable the pager for certain commands by adding them to the
pager.ignore list::
[pager]
ignore = version, help, update
To ignore global commands like :hg:`version` or :hg:`help`, you have
to specify them in your user configuration file.
To control whether the pager is used at all for an individual command,
you can use --pager=<value>:
- use as needed: `auto`.
- require the pager: `yes` or `on`.
- suppress the pager: `no` or `off` (any unrecognized value
will also work).
To globally turn off all attempts to use a pager, set::
[ui]
paginate = never
which will prevent the pager from running.