upstream/mercurial-mirror Files · mercurial/__init__.py

phases: avoid N² behavior in `advanceboundary`...

phases: avoid N² behavior in `advanceboundary` We allowed duplicated entries in the deque, which each entry could potentially insert all its ancestors. So advancing boundary for the full repository would mean each revision would walk all its ancestors, resulting in O(N²) iteration. For repository of any decent size, N² is quickly insane. We introduce a simple set to avoid this and get back to reasonable performance.

Gregory Szorc - - Load All Authors

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      # __init__.py - Startup and module loading logic for Mercurial.

      #

      # Copyright 2015 Gregory Szorc <gregory.szorc@gmail.com>

      #

      # This software may be used and distributed according to the terms of the

      # GNU General Public License version 2 or any later version.

      # Allow 'from mercurial import demandimport' to keep working.

      import hgdemandimport

      demandimport = hgdemandimport

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				# __init__.py - Startup and module loading logic for Mercurial.
				#
				# Copyright 2015 Gregory Szorc <gregory.szorc@gmail.com>
				#
				# This software may be used and distributed according to the terms of the
				# GNU General Public License version 2 or any later version.


				# Allow 'from mercurial import demandimport' to keep working.
				import hgdemandimport

				demandimport = hgdemandimport