view doc/README @ 24940:6b54f749659b

revset: avoid returning duplicates when returning ancestors

Before this patch, _revancestors were giving false result when a revision was
duplicated in the input. Duplicated entry are rare but may happen when using the
`%lx` notation internally.

This series has no visible impact on the performance of the function according
to benchmark.

Mercurial's documentation is kept in reStructuredText format, which is
a simple plain text format that's easy to read and edit:

  http://docutils.sourceforge.net/rst.html

It's also convertible to a variety of other formats including standard
UNIX man page format and HTML. You'll need to install Docutils:

  http://docutils.sourceforge.net/

Use the Makefile in this directory to generate the man and HTML pages.