view contrib/debian/rules @ 34065:c6c8a52e28c9

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

#!/usr/bin/make -f
# Uncomment this to turn on verbose mode.
# export DH_VERBOSE=1

CPUS=$(shell cat /proc/cpuinfo | grep -E ^processor | wc -l)

%:
	dh $@ --with python2

override_dh_auto_test:
	http_proxy='' dh_auto_test -- TESTFLAGS="-j$(CPUS)"

override_dh_python2:
	dh_python2
	find debian/mercurial/usr/share -type d -empty -delete

override_dh_install:
	python$(PYVERS) setup.py install --root $(CURDIR)/debian/mercurial --install-layout=deb
	# remove arch-independent python stuff
	find $(CURDIR)/debian/mercurial/usr/lib \
		! -name '*.so' ! -type d -delete , \
		-type d -empty -delete
	python$(PYVERS) setup.py install --root $(CURDIR)/debian/mercurial-common --install-layout=deb
	make install-doc PREFIX=$(CURDIR)/debian/mercurial-common/usr
	# remove arch-dependent python stuff
	find $(CURDIR)/debian/mercurial-common/usr/lib \
		-name '*.so' ! -type d -delete , \
		-type d -empty -delete
	cp contrib/hg-ssh $(CURDIR)/debian/mercurial-common/usr/bin
	mkdir -p $(CURDIR)/debian/mercurial-common/usr/share/mercurial
	cp contrib/hgk $(CURDIR)/debian/mercurial-common/usr/share/mercurial
	mkdir -p $(CURDIR)/debian/mercurial-common/etc/mercurial/hgrc.d/
	cp contrib/debian/*.rc $(CURDIR)/debian/mercurial-common/etc/mercurial/hgrc.d/
	mkdir -p $(CURDIR)/debian/mercurial-common/usr/share/bash-completion/completions
	cp contrib/bash_completion $(CURDIR)/debian/mercurial-common/usr/share/bash-completion/completions/hg
	rm $(CURDIR)/debian/mercurial-common/usr/bin/hg