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view mercurial/help/patterns.txt @ 23324:69f86b937035
cmdserver: protect pipe server streams against corruption caused by direct io
Because pipe-mode server uses stdio as IPC channel, other modules should not
touch stdio directly and use ui instead. However, this strategy is brittle
because several Python functions read and write stdio implicitly.
print 'hello' # should use ui.write()
# => ch = 'h', size = 1701604463 'ello', data = '\n'
This patch adds protection for such mistakes. Both stdio files and low-level
file descriptors are redirected to /dev/null while command server uses them.
author | Yuya Nishihara <yuya@tcha.org> |
---|---|
date | Sat, 15 Nov 2014 13:50:43 +0900 |
parents | f1a3ae7c15df |
children | 7072b91ccd20 |
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Mercurial accepts several notations for identifying one or more files at a time. By default, Mercurial treats filenames as shell-style extended glob patterns. Alternate pattern notations must be specified explicitly. .. note:: Patterns specified in ``.hgignore`` are not rooted. Please see :hg:`help hgignore` for details. To use a plain path name without any pattern matching, start it with ``path:``. These path names must completely match starting at the current repository root. To use an extended glob, start a name with ``glob:``. Globs are rooted at the current directory; a glob such as ``*.c`` will only match files in the current directory ending with ``.c``. The supported glob syntax extensions are ``**`` to match any string across path separators and ``{a,b}`` to mean "a or b". To use a Perl/Python regular expression, start a name with ``re:``. Regexp pattern matching is anchored at the root of the repository. To read name patterns from a file, use ``listfile:`` or ``listfile0:``. The latter expects null delimited patterns while the former expects line feeds. Each string read from the file is itself treated as a file pattern. All patterns, except for ``glob:`` specified in command line (not for ``-I`` or ``-X`` options), can match also against directories: files under matched directories are treated as matched. Plain examples:: path:foo/bar a name bar in a directory named foo in the root of the repository path:path:name a file or directory named "path:name" Glob examples:: glob:*.c any name ending in ".c" in the current directory *.c any name ending in ".c" in the current directory **.c any name ending in ".c" in any subdirectory of the current directory including itself. foo/*.c any name ending in ".c" in the directory foo foo/**.c any name ending in ".c" in any subdirectory of foo including itself. Regexp examples:: re:.*\.c$ any name ending in ".c", anywhere in the repository File examples:: listfile:list.txt read list from list.txt with one file pattern per line listfile0:list.txt read list from list.txt with null byte delimiters See also :hg:`help filesets`.