Mercurial > hg
view mercurial/help/hgignore.txt @ 40424:7caf632e30c3
filecache: unimplement __set__() and __delete__() (API)
Implementing __set__() implies that the descriptor can't be overridden by
obj.__dict__, which means any property access involves slow function call.
"Data descriptors with __set__() and __get__() defined always override
a redefinition in an instance dictionary. In contrast, non-data descriptors
can be overridden by instances."
https://docs.python.org/2.7/reference/datamodel.html#invoking-descriptors
This patch basically backs out 236bb604dc39, "scmutil: update cached copy
when filecached attribute is assigned (issue3263)." The problem described
in issue3263 (which is #3264 in Bugzilla) should no longer happen since
repo._bookmarkcurrent has been moved to repo._bookmarks.active. We still
have a risk of introducing similar bugs, but I think that's the cost we
have to pay.
$ hg perfrevset 'branch(tip)' -R mercurial
(orig) wall 0.139511 comb 0.140000 user 0.140000 sys 0.000000 (best of 66)
(prev) wall 0.114195 comb 0.110000 user 0.110000 sys 0.000000 (best of 81)
(this) wall 0.099038 comb 0.110000 user 0.100000 sys 0.010000 (best of 93)
author | Yuya Nishihara <yuya@tcha.org> |
---|---|
date | Sat, 20 Oct 2018 17:56:00 +0900 |
parents | 7072b91ccd20 |
children | 4fab8a7d2d72 |
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Synopsis ======== The Mercurial system uses a file called ``.hgignore`` in the root directory of a repository to control its behavior when it searches for files that it is not currently tracking. Description =========== The working directory of a Mercurial repository will often contain files that should not be tracked by Mercurial. These include backup files created by editors and build products created by compilers. These files can be ignored by listing them in a ``.hgignore`` file in the root of the working directory. The ``.hgignore`` file must be created manually. It is typically put under version control, so that the settings will propagate to other repositories with push and pull. An untracked file is ignored if its path relative to the repository root directory, or any prefix path of that path, is matched against any pattern in ``.hgignore``. For example, say we have an untracked file, ``file.c``, at ``a/b/file.c`` inside our repository. Mercurial will ignore ``file.c`` if any pattern in ``.hgignore`` matches ``a/b/file.c``, ``a/b`` or ``a``. In addition, a Mercurial configuration file can reference a set of per-user or global ignore files. See the ``ignore`` configuration key on the ``[ui]`` section of :hg:`help config` for details of how to configure these files. To control Mercurial's handling of files that it manages, many commands support the ``-I`` and ``-X`` options; see :hg:`help <command>` and :hg:`help patterns` for details. Files that are already tracked are not affected by .hgignore, even if they appear in .hgignore. An untracked file X can be explicitly added with :hg:`add X`, even if X would be excluded by a pattern in .hgignore. Syntax ====== An ignore file is a plain text file consisting of a list of patterns, with one pattern per line. Empty lines are skipped. The ``#`` character is treated as a comment character, and the ``\`` character is treated as an escape character. Mercurial supports several pattern syntaxes. The default syntax used is Python/Perl-style regular expressions. To change the syntax used, use a line of the following form:: syntax: NAME where ``NAME`` is one of the following: ``regexp`` Regular expression, Python/Perl syntax. ``glob`` Shell-style glob. The chosen syntax stays in effect when parsing all patterns that follow, until another syntax is selected. Neither glob nor regexp patterns are rooted. A glob-syntax pattern of the form ``*.c`` will match a file ending in ``.c`` in any directory, and a regexp pattern of the form ``\.c$`` will do the same. To root a regexp pattern, start it with ``^``. Subdirectories can have their own .hgignore settings by adding ``subinclude:path/to/subdir/.hgignore`` to the root ``.hgignore``. See :hg:`help patterns` for details on ``subinclude:`` and ``include:``. .. note:: Patterns specified in other than ``.hgignore`` are always rooted. Please see :hg:`help patterns` for details. Example ======= Here is an example ignore file. :: # use glob syntax. syntax: glob *.elc *.pyc *~ # switch to regexp syntax. syntax: regexp ^\.pc/