doc8/README.rst

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====
Doc8
====
Doc8 is a *opinionated* style checker for `rst`_ (with basic support for
plain text) styles of documentation.
QuickStart
==========
::
pip install doc8
To run doc8 just invoke it against any doc directory::
$ doc8 coolproject/docs
Usage
=====
Command line usage
******************
::
$ doc8 -h
usage: doc8 [-h] [--config path] [--allow-long-titles] [--ignore code]
[--no-sphinx] [--ignore-path path] [--max-line-length int]
[-e extension] [-v]
[path [path ...]]
Check documentation for simple style requirements.
What is checked:
- invalid rst format - D000
- lines should not be longer than 79 characters - D001
- exception: line with no whitespace except in the beginning
- exception: lines with http or https urls
- exception: literal blocks
- exception: rst target directives
- no trailing whitespace - D002
- no tabulation for indentation - D003
- no carriage returns (use unix newlines) - D004
positional arguments:
path path to scan for doc files (default: os.getcwd())
optional arguments:
-h, --help show this help message and exit
--config path user config file location (default: doc8.ini, tox.ini,
pep8.ini, setup.cfg)
--allow-long-titles allow long section titles (default: False)
--ignore code ignore the given errors code/codes
--no-sphinx do not ignore sphinx specific false positives
--ignore-path path ignore the given directory or file (globs are
supported)
--max-line-length int
maximum allowed line length (default: 79)
-e extension, --extension extension
check file extensions of the given type (default:
.rst, .txt)
-v, --verbose run in verbose mode
Ini file usage
**************
Instead of using the CLI for options the following files will also be examined
for ``[doc8]`` sections that can also provided the same set of options. If
the ``--config path`` option is used these files will **not** be scanned for
the current working directory and that configuration path will be used
instead.
* ``$CWD/doc8.ini``
* ``$CWD/tox.ini``
* ``$CWD/pep8.ini``
* ``$CWD/setup.cfg``
An example section that can be placed into one of these files::
[doc8]
ignore_path=/tmp/stuff,/tmp/other_stuff
max_line_length=99
verbose=1
**Note:** The option names are the same as the command line ones but instead
of dashes underscores are used instead (with the only variation of this being
the ``no-sphinx`` option which from configuration file will be ``sphinx``
instead).
Option conflict resolution
**************************
When the same option is passed on the command line and also via configuration
files the following strategies are applied to resolve these types
of conflicts.
===================== =========== ========
Option Overrides Merges
===================== =========== ========
``allow-long-titles`` Yes No
``extension`` No Yes
``ignore-path`` No Yes
``ignore`` No Yes
``max-line-length`` Yes No
``sphinx`` Yes No
===================== =========== ========
**Note:** In the above table the configuration file option when specified as
*overrides* will replace the same option given via the command line. When
*merges* is stated then the option will be combined with the command line
option (for example by becoming a larger list or set of values that contains
the values passed on the command line *and* the values passed via
configuration).
.. _rst: http://docutils.sourceforge.net/docs/ref/rst/introduction.html