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pelican/docs/settings.rst
Forest 48f4f0850d Make StaticGenerator skip content sources. Refs #1019. 
This change partially addresses issue #1019, by teaching Pelican to distinguish
between static files and content source files. A user can now safely add the
same directory to both STATIC_PATHS and PAGE_PATHS (or ARTICLE_PATHS). Pelican
will then process the content source files in that directory normally, and
treat the remaining files as static, without copying the raw content source
files to the output directory. (The OUTPUT_SOURCES setting still works.)

In other words, images and markdown/reST files can now safely live together.

To keep those files together in the generated site, STATIC_SAVE_AS and
PAGE_SAVE_AS (or ARTICLE_SAVE_AS) should point to the same output directory.

There are two new configuration settings:

STATIC_EXCLUDES=[]  # This works just like PAGE_EXCLUDES and ARTICLE_EXCLUDES.
STATIC_EXCLUDE_SOURCES=True  # Set this to False to get the old behavior.

Two small but noteworthy internal changes:

StaticGenerator now runs after all the other generators. This allows it to see
which files are meant to be processed by other generators, and avoid them.

Generators now include files that they fail to process (e.g. those with missing
mandatory metadata) along with all the other paths in context['filenames'].
This allows such files to be excluded from StaticGenerator's file list, so they
won't end up accidentally published. Since these files have no Content object,
their value in context['filenames'] is None. The code that uses that dict has
been updated accordingly.
2014-10-31 16:46:01 -07:00

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Settings
########
Pelican is configurable thanks to a settings file you can pass to
the command line::
pelican content -s path/to/your/settingsfile.py
(If you used the ``pelican-quickstart`` command, your primary settings file will
be named ``pelicanconf.py`` by default.)
Settings are configured in the form of a Python module (a file). There is an
`example settings file
<https://github.com/getpelican/pelican/raw/master/samples/pelican.conf.py>`_
available for reference.
All the setting identifiers must be set in all-caps, otherwise they will not be
processed. Setting values that are numbers (5, 20, etc.), booleans (True,
False, None, etc.), dictionaries, or tuples should *not* be enclosed in
quotation marks. All other values (i.e., strings) *must* be enclosed in
quotation marks.
Unless otherwise specified, settings that refer to paths can be either absolute
or relative to the configuration file.
The settings you define in the configuration file will be passed to the
templates, which allows you to use your settings to add site-wide content.
Here is a list of settings for Pelican:
Basic settings
==============
=============================================================================== =====================================================================
Setting name (followed by default value, if any) What does it do?
=============================================================================== =====================================================================
``AUTHOR`` Default author (put your name)
``DATE_FORMATS = {}`` If you manage multiple languages, you can set the date formatting
here. See the "Date format and locale" section below for details.
``USE_FOLDER_AS_CATEGORY = True`` When you don't specify a category in your post metadata, set this
setting to ``True``, and organize your articles in subfolders, the
subfolder will become the category of your post. If set to ``False``,
``DEFAULT_CATEGORY`` will be used as a fallback.
``DEFAULT_CATEGORY = 'misc'`` The default category to fall back on.
``DEFAULT_DATE_FORMAT = '%a %d %B %Y'`` The default date format you want to use.
``DISPLAY_PAGES_ON_MENU = True`` Whether to display pages on the menu of the
template. Templates may or may not honor this
setting.
``DISPLAY_CATEGORIES_ON_MENU = True`` Whether to display categories on the menu of the
template. Templates may or not honor this
setting.
``DEFAULT_DATE = None`` The default date you want to use.
If ``fs``, Pelican will use the file system
timestamp information (mtime) if it can't get
date information from the metadata.
If set to a tuple object, the default datetime object will instead
be generated by passing the tuple to the
``datetime.datetime`` constructor.
``DEFAULT_METADATA = ()`` The default metadata you want to use for all articles
and pages.
``DOCUTILS_SETTINGS = {}`` Extra configuration settings for the docutils publisher
(applicable only to reStructuredText). See `Docutils
Configuration`_ settings for more details.
``FILENAME_METADATA =`` ``'(?P<date>\d{4}-\d{2}-\d{2}).*'`` The regexp that will be used to extract any metadata
from the filename. All named groups that are matched
will be set in the metadata object.
The default value will only extract the date from
the filename.
For example, if you would like to extract both the
date and the slug, you could set something like:
``'(?P<date>\d{4}-\d{2}-\d{2})_(?P<slug>.*)'``.
See :ref:`path_metadata` and ``SLUGIFY_SOURCE``.
``PATH_METADATA = ''`` Like ``FILENAME_METADATA``, but parsed from a page's
full path relative to the content source directory.
See :ref:`path_metadata`.
``EXTRA_PATH_METADATA = {}`` Extra metadata dictionaries keyed by relative path. Relative paths
require correct OS-specific directory separators (i.e. / in UNIX and
\\ in Windows) unlike some other Pelican file settings.
See :ref:`path_metadata`.
``DELETE_OUTPUT_DIRECTORY = False`` Delete the output directory, and **all** of its contents, before
generating new files. This can be useful in preventing older,
unnecessary files from persisting in your output. However, **this is
a destructive setting and should be handled with extreme care.**
``OUTPUT_RETENTION = ()`` A tuple of filenames that should be retained and not deleted from the
output directory. One use case would be the preservation of version
control data. For example: ``(".hg", ".git", ".bzr")``
``JINJA_EXTENSIONS = []`` A list of any Jinja2 extensions you want to use.
``JINJA_FILTERS = {}`` A list of custom Jinja2 filters you want to use.
The dictionary should map the filtername to the filter function.
For example: ``{'urlencode': urlencode_filter}``
See `Jinja custom filters documentation`_.
``LOCALE`` [#]_ Change the locale. A list of locales can be provided
here or a single string representing one locale.
When providing a list, all the locales will be tried
until one works.
``LOG_FILTER = []`` A list of tuples containing the logging level (up to ``warning``)
and the message to be ignored.
For example: ``[(logging.WARN, 'TAG_SAVE_AS is set to False')]``
``READERS = {}`` A dictionary of file extensions / Reader classes for Pelican to
process or ignore. For example, to avoid processing .html files,
set: ``READERS = {'html': None}``. To add a custom reader for the
``foo`` extension, set: ``READERS = {'foo': FooReader}``
``IGNORE_FILES = ['.#*']`` A list of file globbing patterns to match against the
source files to be ignored by the processor. For example,
the default ``['.#*']`` will ignore emacs lock files.
``MD_EXTENSIONS =`` ``['codehilite(css_class=highlight)','extra']`` A list of the extensions that the Markdown processor
will use. Refer to the Python Markdown documentation's
`Extensions section <http://pythonhosted.org/Markdown/extensions/>`_
for a complete list of supported extensions. (Note that
defining this in your settings file will override and
replace the default values. If your goal is to *add*
to the default values for this setting, you'll need to
include them explicitly and enumerate the full list of
desired Markdown extensions.)
``OUTPUT_PATH = 'output/'`` Where to output the generated files.
``PATH`` Path to content directory to be processed by Pelican. If undefined,
and content path is not specified via an argument to the ``pelican``
command, Pelican will use the current working directory.
``PAGE_PATHS = ['pages']`` A list of directories to look at for pages, relative to ``PATH``.
``PAGE_EXCLUDES = []`` A list of directories to exclude when looking for pages in addition
to ``ARTICLE_PATHS``.
``ARTICLE_PATHS = ['']`` A list of directories to look at for articles, relative to ``PATH``.
``ARTICLE_EXCLUDES = []`` A list of directories to exclude when looking for articles in addition
to ``PAGE_PATHS``.
``OUTPUT_SOURCES = False`` Set to True if you want to copy the articles and pages in their
original format (e.g. Markdown or reStructuredText) to the
specified ``OUTPUT_PATH``.
``OUTPUT_SOURCES_EXTENSION = '.text'`` Controls the extension that will be used by the SourcesGenerator.
Defaults to ``.text``. If not a valid string the default value
will be used.
``RELATIVE_URLS = False`` Defines whether Pelican should use document-relative URLs or
not. Only set this to ``True`` when developing/testing and only
if you fully understand the effect it can have on links/feeds.
``PLUGINS = []`` The list of plugins to load. See :ref:`plugins`.
``PLUGIN_PATHS = []`` A list of directories where to look for plugins. See :ref:`plugins`.
``SITENAME = 'A Pelican Blog'`` Your site name
``SITEURL`` Base URL of your website. Not defined by default,
so it is best to specify your SITEURL; if you do not, feeds
will not be generated with properly-formed URLs. You should
include ``http://`` and your domain, with no trailing
slash at the end. Example: ``SITEURL = 'http://mydomain.com'``
``TEMPLATE_PAGES = None`` A mapping containing template pages that will be rendered with
the blog entries. See :ref:`template_pages`.
``STATIC_PATHS = ['images']`` A list of directories (relative to ``PATH``) in which to look for
static files. Such files will be copied to the output directory
without modification. Articles, pages, and other content source
files will normally be skipped, so it is safe for a directory to
appear both here and in ``PAGE_PATHS`` or ``ARTICLE_PATHS``.
Pelican's default settings include the "images" directory here.
``STATIC_EXCLUDES = []`` A list of directories to exclude when looking for static files.
``STATIC_EXCLUDE_SOURCES = True`` If set to False, content source files will not be skipped when
copying files found in ``STATIC_PATHS``.
``TIMEZONE`` The timezone used in the date information, to
generate Atom and RSS feeds. See the *Timezone*
section below for more info.
``TYPOGRIFY = False`` If set to True, several typographical improvements will be
incorporated into the generated HTML via the `Typogrify
<https://pypi.python.org/pypi/typogrify>`_ library,
which can be installed via: ``pip install typogrify``
``TYPOGRIFY_IGNORE_TAGS = []`` A list of tags for Typogrify to ignore. By default
Typogrify will ignore ``pre`` and ``code`` tags. This
requires that Typogrify version 2.0.4 or later is installed
``DIRECT_TEMPLATES =`` ``('index', 'categories', 'authors', 'archives')`` List of templates that are used directly to render
content. Typically direct templates are used to generate
index pages for collections of content (e.g., tags and
category index pages). If the tag and category collections
are not needed, set ``DIRECT_TEMPLATES = ('index', 'archives')``
``PAGINATED_DIRECT_TEMPLATES = ('index',)`` Provides the direct templates that should be paginated.
``SUMMARY_MAX_LENGTH = 50`` When creating a short summary of an article, this will
be the default length (measured in words) of the text created.
This only applies if your content does not otherwise
specify a summary. Setting to ``None`` will cause the summary
to be a copy of the original content.
``EXTRA_TEMPLATES_PATHS = []`` A list of paths you want Jinja2 to search for templates.
Can be used to separate templates from the theme.
Example: projects, resume, profile ...
These templates need to use ``DIRECT_TEMPLATES`` setting.
``WITH_FUTURE_DATES = True`` If disabled, content with dates in the future will get a default
status of ``draft``. See :ref:`reading_only_modified_content`
for caveats.
``INTRASITE_LINK_REGEX = '[{|](?P<what>.*?)[|}]'`` Regular expression that is used to parse internal links. Default
syntax when linking to internal files, tags, etc., is to enclose
the identifier, say ``filename``, in ``{}`` or ``||``. Identifier
between ``{`` and ``}`` goes into the ``what`` capturing group.
For details see :ref:`ref-linking-to-internal-content`.
``PYGMENTS_RST_OPTIONS = []`` A list of default Pygments settings for your reStructuredText
code blocks. See :ref:`internal_pygments_options` for a list of
supported options.
``SLUGIFY_SOURCE = 'title'`` Specifies where you want the slug to be automatically generated
from. Can be set to ``title`` to use the 'Title:' metadata tag or
``basename`` to use the article's file name when creating the slug.
``CACHE_CONTENT = True`` If ``True``, save content in a cache file.
See :ref:`reading_only_modified_content` for details about caching.
``CONTENT_CACHING_LAYER = 'reader'`` If set to ``'reader'``, save only the raw content and metadata
returned by readers. If set to ``'generator'``, save processed
content objects.
``CACHE_PATH = 'cache'`` Directory in which to store cache files.
``GZIP_CACHE = True`` If ``True``, use gzip to (de)compress the cache files.
``CHECK_MODIFIED_METHOD = 'mtime'`` Controls how files are checked for modifications.
``LOAD_CONTENT_CACHE = True`` If ``True``, load unmodified content from cache.
``AUTORELOAD_IGNORE_CACHE = False`` If ``True``, do not load content cache in autoreload mode
when the settings file changes.
``WRITE_SELECTED = []`` If this list is not empty, **only** output files with their paths
in this list are written. Paths should be either absolute or relative
to the current Pelican working directory. For possible use cases see
:ref:`writing_only_selected_content`.
=============================================================================== =====================================================================
.. [#] Default is the system locale.
URL settings
============
The first thing to understand is that there are currently two supported methods
for URL formation: *relative* and *absolute*. Relative URLs are useful
when testing locally, and absolute URLs are reliable and most useful when
publishing. One method of supporting both is to have one Pelican configuration
file for local development and another for publishing. To see an example of this
type of setup, use the ``pelican-quickstart`` script as described in the
:doc:`Installation <install>` section, which will produce two separate
configuration files for local development and publishing, respectively.
You can customize the URLs and locations where files will be saved. The
``*_URL`` and ``*_SAVE_AS`` variables use Python's format strings. These
variables allow you to place your articles in a location such as
``{slug}/index.html`` and link to them as ``{slug}`` for clean URLs. These
settings give you the flexibility to place your articles and pages anywhere you
want.
.. note::
If you specify a ``datetime`` directive, it will be substituted using the
input files' date metadata attribute. If the date is not specified for a
particular file, Pelican will rely on the file's ``mtime`` timestamp.
Check the `Python datetime documentation`_ for more information.
.. _Python datetime documentation:
http://docs.python.org/2/library/datetime.html#strftime-and-strptime-behavior
Also, you can use other file metadata attributes as well:
* slug
* date
* lang
* author
* category
Example usage:
* ``ARTICLE_URL = 'posts/{date:%Y}/{date:%b}/{date:%d}/{slug}/'``
* ``ARTICLE_SAVE_AS = 'posts/{date:%Y}/{date:%b}/{date:%d}/{slug}/index.html'``
This would save your articles in something like ``/posts/2011/Aug/07/sample-post/index.html``,
and the URL to this would be ``/posts/2011/Aug/07/sample-post/``.
Pelican can optionally create per-year, per-month, and per-day archives of your
posts. These secondary archives are disabled by default but are automatically
enabled if you supply format strings for their respective ``_SAVE_AS`` settings.
Period archives fit intuitively with the hierarchical model of web URLs and can
make it easier for readers to navigate through the posts you've written over time.
Example usage:
* ``YEAR_ARCHIVE_SAVE_AS = 'posts/{date:%Y}/index.html'``
* ``MONTH_ARCHIVE_SAVE_AS = 'posts/{date:%Y}/{date:%b}/index.html'``
With these settings, Pelican will create an archive of all your posts for the
year at (for instance) ``posts/2011/index.html`` and an archive of all your
posts for the month at ``posts/2011/Aug/index.html``.
.. note::
Period archives work best when the final path segment is ``index.html``.
This way a reader can remove a portion of your URL and automatically
arrive at an appropriate archive of posts, without having to specify
a page name.
====================================================== ==============================================================
Setting name (followed by default value, if any) What does it do?
====================================================== ==============================================================
``ARTICLE_URL = '{slug}.html'`` The URL to refer to an article.
``ARTICLE_SAVE_AS = '{slug}.html'`` The place where we will save an article.
``ARTICLE_ORDER_BY = 'slug'`` The metadata attribute used to sort articles. By default,
the ``articles_page.object_list`` template variable is
ordered by slug. If you modify this, make sure all
articles contain the attribute you specify. You can also
specify a "sorting" function of one argument that is used
to extract a comparison key from each article. For example,
sorting by title without using the built-in functionality
would use the function ``operator.attrgetter('title')``.
``ARTICLE_LANG_URL = '{slug}-{lang}.html'`` The URL to refer to an article which doesn't use the
default language.
``ARTICLE_LANG_SAVE_AS = '{slug}-{lang}.html'`` The place where we will save an article which
doesn't use the default language.
``DRAFT_URL = 'drafts/{slug}.html'`` The URL to refer to an article draft.
``DRAFT_SAVE_AS = 'drafts/{slug}.html'`` The place where we will save an article draft.
``DRAFT_LANG_URL = 'drafts/{slug}-{lang}.html'`` The URL to refer to an article draft which doesn't
use the default language.
``DRAFT_LANG_SAVE_AS = 'drafts/{slug}-{lang}.html'`` The place where we will save an article draft which
doesn't use the default language.
``PAGE_URL = 'pages/{slug}.html'`` The URL we will use to link to a page.
``PAGE_SAVE_AS = 'pages/{slug}.html'`` The location we will save the page. This value has to be
the same as PAGE_URL or you need to use a rewrite in
your server config.
``PAGE_ORDER_BY = 'basename'`` The metadata attribute used to sort pages. By default
the ``PAGES`` template variable is ordered by basename
(i.e., path not included). Note that the option ``'basename'``
is a special option supported in the source code. If
you modify this setting, make sure all pages contain
the attribute you specify. You can also specify a "sorting"
function of one argument that is used to extract a comparison
key from each page. For example, the basename function looks
similar to
``lambda x: os.path.basename(getattr(x, 'source_path', ''))``.
``PAGE_LANG_URL = 'pages/{slug}-{lang}.html'`` The URL we will use to link to a page which doesn't
use the default language.
``PAGE_LANG_SAVE_AS = 'pages/{slug}-{lang}.html'`` The location we will save the page which doesn't
use the default language.
``CATEGORY_URL = 'category/{slug}.html'`` The URL to use for a category.
``CATEGORY_SAVE_AS = 'category/{slug}.html'`` The location to save a category.
``TAG_URL = 'tag/{slug}.html'`` The URL to use for a tag.
``TAG_SAVE_AS = 'tag/{slug}.html'`` The location to save the tag page.
``AUTHOR_URL = 'author/{slug}.html'`` The URL to use for an author.
``AUTHOR_SAVE_AS = 'author/{slug}.html'`` The location to save an author.
``YEAR_ARCHIVE_SAVE_AS = ''`` The location to save per-year archives of your posts.
``MONTH_ARCHIVE_SAVE_AS = ''`` The location to save per-month archives of your posts.
``DAY_ARCHIVE_SAVE_AS = ''`` The location to save per-day archives of your posts.
``SLUG_SUBSTITUTIONS = ()`` Substitutions to make prior to stripping out
non-alphanumerics when generating slugs. Specified
as a list of 2-tuples of ``(from, to)`` which are
applied in order.
====================================================== ==============================================================
.. note::
If you do not want one or more of the default pages to be created (e.g.,
you are the only author on your site and thus do not need an Authors page),
set the corresponding ``*_SAVE_AS`` setting to ``''`` to prevent the
relevant page from being generated.
``DIRECT_TEMPLATES``, which are ``('index', 'tags', 'categories', 'archives')``
by default, work a bit differently than noted above. Only the ``_SAVE_AS``
settings are available:
============================================= ===============================================
Setting name (followed by default value) What does it do?
============================================= ===============================================
``ARCHIVES_SAVE_AS = 'archives.html'`` The location to save the article archives page.
``AUTHORS_SAVE_AS = 'authors.html'`` The location to save the author list.
``CATEGORIES_SAVE_AS = 'categories.html'`` The location to save the category list.
``TAGS_SAVE_AS = 'tags.html'`` The location to save the tag list.
============================================= ===============================================
URLs for direct template pages are theme-dependent. Some themes hard-code them:
``'archives.html'``, ``'authors.html'``, ``'categories.html'``, ``'tags.html'``.
Timezone
--------
If no timezone is defined, UTC is assumed. This means that the generated Atom
and RSS feeds will contain incorrect date information if your locale is not UTC.
Pelican issues a warning in case this setting is not defined, as it was not
mandatory in previous versions.
Have a look at `the wikipedia page`_ to get a list of valid timezone values.
.. _the wikipedia page: http://en.wikipedia.org/wiki/List_of_tz_database_time_zones
Date format and locale
----------------------
If no ``DATE_FORMATS`` are set, Pelican will fall back to
``DEFAULT_DATE_FORMAT``. If you need to maintain multiple languages with
different date formats, you can set the ``DATE_FORMATS`` dictionary using the
language name (``lang`` metadata in your post content) as the key.
In addition to the standard C89 strftime format codes that are listed in
`Python strftime documentation`_, you can use ``-`` character between ``%`` and
the format character to remove any leading zeros. For example, ``%d/%m/%Y`` will
output ``01/01/2014`` whereas ``%-d/%-m/%Y`` will result in ``1/1/2014``.
.. parsed-literal::
DATE_FORMATS = {
'en': '%a, %d %b %Y',
'jp': '%Y-%m-%d(%a)',
}
You can set locale to further control date format:
.. parsed-literal::
LOCALE = ('usa', 'jpn', # On Windows
'en_US', 'ja_JP' # On Unix/Linux
)
Also, it is possible to set different locale settings for each language. If you
put (locale, format) tuples in the dict, this will override the ``LOCALE``
setting above:
.. parsed-literal::
# On Unix/Linux
DATE_FORMATS = {
'en': ('en_US','%a, %d %b %Y'),
'jp': ('ja_JP','%Y-%m-%d(%a)'),
}
# On Windows
DATE_FORMATS = {
'en': ('usa','%a, %d %b %Y'),
'jp': ('jpn','%Y-%m-%d(%a)'),
}
This is a list of available `locales on Windows`_ . On Unix/Linux, usually you
can get a list of available locales via the ``locale -a`` command; see manpage
`locale(1)`_ for more information.
.. _Python strftime documentation: http://docs.python.org/library/datetime.html#strftime-strptime-behavior
.. _locales on Windows: http://msdn.microsoft.com/en-us/library/cdax410z%28VS.71%29.aspx
.. _locale(1): http://linux.die.net/man/1/locale
.. _template_pages:
Template pages
==============
If you want to generate custom pages besides your blog entries, you can point
any Jinja2 template file with a path pointing to the file and the destination
path for the generated file.
For instance, if you have a blog with three static pages — a list of books,
your resume, and a contact page — you could have::
TEMPLATE_PAGES = {'src/books.html': 'dest/books.html',
'src/resume.html': 'dest/resume.html',
'src/contact.html': 'dest/contact.html'}
.. _path_metadata:
Path metadata
=============
Not all metadata needs to be `embedded in source file itself`__. For
example, blog posts are often named following a ``YYYY-MM-DD-SLUG.rst``
pattern, or nested into ``YYYY/MM/DD-SLUG`` directories. To extract
metadata from the filename or path, set ``FILENAME_METADATA`` or
``PATH_METADATA`` to regular expressions that use Python's `group name
notation`_ ``(?P<name>…)``. If you want to attach additional metadata
but don't want to encode it in the path, you can set
``EXTRA_PATH_METADATA``:
.. parsed-literal::
EXTRA_PATH_METADATA = {
'relative/path/to/file-1': {
'key-1a': 'value-1a',
'key-1b': 'value-1b',
},
'relative/path/to/file-2': {
'key-2': 'value-2',
},
}
This can be a convenient way to shift the installed location of a
particular file:
.. parsed-literal::
# Take advantage of the following defaults
# STATIC_SAVE_AS = '{path}'
# STATIC_URL = '{path}'
STATIC_PATHS = [
'extra/robots.txt',
]
EXTRA_PATH_METADATA = {
'extra/robots.txt': {'path': 'robots.txt'},
}
__ internal_metadata__
.. _group name notation:
http://docs.python.org/3/library/re.html#regular-expression-syntax
Feed settings
=============
By default, Pelican uses Atom feeds. However, it is also possible to use RSS
feeds if you prefer.
Pelican generates category feeds as well as feeds for all your articles. It does
not generate feeds for tags by default, but it is possible to do so using
the ``TAG_FEED_ATOM`` and ``TAG_FEED_RSS`` settings:
================================================= =====================================================
Setting name (followed by default value, if any) What does it do?
================================================= =====================================================
``FEED_DOMAIN = None``, i.e. base URL is "/" The domain prepended to feed URLs. Since feed URLs
should always be absolute, it is highly recommended
to define this (e.g., "http://feeds.example.com"). If
you have already explicitly defined SITEURL (see
above) and want to use the same domain for your
feeds, you can just set: ``FEED_DOMAIN = SITEURL``.
``FEED_ATOM = None``, i.e. no Atom feed Relative URL to output the Atom feed.
``FEED_RSS = None``, i.e. no RSS Relative URL to output the RSS feed.
``FEED_ALL_ATOM = 'feeds/all.atom.xml'`` Relative URL to output the all-posts Atom feed:
this feed will contain all posts regardless of their
language.
``FEED_ALL_RSS = None``, i.e. no all-posts RSS Relative URL to output the all-posts RSS feed:
this feed will contain all posts regardless of their
language.
``CATEGORY_FEED_ATOM = 'feeds/%s.atom.xml'`` [2]_ Where to put the category Atom feeds.
``CATEGORY_FEED_RSS = None``, i.e. no RSS Where to put the category RSS feeds.
``AUTHOR_FEED_ATOM = 'feeds/%s.atom.xml'`` [2]_ Where to put the author Atom feeds.
``AUTHOR_FEED_RSS = 'feeds/%s.rss.xml'`` [2]_ Where to put the author RSS feeds.
``TAG_FEED_ATOM = None``, i.e. no tag feed Relative URL to output the tag Atom feed. It should
be defined using a "%s" match in the tag name.
``TAG_FEED_RSS = None``, i.e. no RSS tag feed Relative URL to output the tag RSS feed
``FEED_MAX_ITEMS`` Maximum number of items allowed in a feed. Feed item
quantity is unrestricted by default.
================================================= =====================================================
If you don't want to generate some or any of these feeds, set the above variables to ``None``.
.. [2] %s is the name of the category.
FeedBurner
----------
If you want to use FeedBurner for your feed, you will likely need to decide
upon a unique identifier. For example, if your site were called "Thyme" and
hosted on the www.example.com domain, you might use "thymefeeds" as your
unique identifier, which we'll use throughout this section for illustrative
purposes. In your Pelican settings, set the ``FEED_ATOM`` attribute to
``thymefeeds/main.xml`` to create an Atom feed with an original address of
``http://www.example.com/thymefeeds/main.xml``. Set the ``FEED_DOMAIN``
attribute to ``http://feeds.feedburner.com``, or ``http://feeds.example.com`` if
you are using a CNAME on your own domain (i.e., FeedBurner's "MyBrand" feature).
There are two fields to configure in the `FeedBurner
<http://feedburner.google.com>`_ interface: "Original Feed" and "Feed
Address". In this example, the "Original Feed" would be
``http://www.example.com/thymefeeds/main.xml`` and the "Feed Address" suffix
would be ``thymefeeds/main.xml``.
Pagination
==========
The default behaviour of Pelican is to list all the article titles along
with a short description on the index page. While this works well for
small-to-medium sites, sites with a large quantity of articles will probably
benefit from paginating this list.
You can use the following settings to configure the pagination.
================================================ =====================================================
Setting name (followed by default value, if any) What does it do?
================================================ =====================================================
``DEFAULT_ORPHANS = 0`` The minimum number of articles allowed on the
last page. Use this when you don't want the last page
to only contain a handful of articles.
``DEFAULT_PAGINATION = False`` The maximum number of articles to include on a
page, not including orphans. False to disable
pagination.
``PAGINATION_PATTERNS`` A set of patterns that are used to determine advanced
pagination output.
================================================ =====================================================
Using Pagination Patterns
-------------------------
The ``PAGINATION_PATTERNS`` setting can be used to configure where
subsequent pages are created. The setting is a sequence of three
element tuples, where each tuple consists of::
(minimum page, URL setting, SAVE_AS setting,)
For example, if you wanted the first page to just be ``/``, and the
second (and subsequent) pages to be ``/page/2/``, you would set
``PAGINATION_PATTERNS`` as follows::
PAGINATION_PATTERNS = (
(1, '{base_name}/', '{base_name}/index.html'),
(2, '{base_name}/page/{number}/', '{base_name}/page/{number}/index.html'),
)
This would cause the first page to be written to
``{base_name}/index.html``, and subsequent ones would be written into
``page/{number}`` directories.
Tag cloud
=========
If you want to generate a tag cloud with all your tags, you can do so using the
following settings.
================================================ =====================================================
Setting name (followed by default value) What does it do?
================================================ =====================================================
``TAG_CLOUD_STEPS = 4`` Count of different font sizes in the tag
cloud.
``TAG_CLOUD_MAX_ITEMS = 100`` Maximum number of tags in the cloud.
================================================ =====================================================
The default theme does not include a tag cloud, but it is pretty easy to add one::
<ul class="tagcloud">
{% for tag in tag_cloud %}
<li class="tag-{{ tag.1 }}"><a href="{{ SITEURL }}/{{ tag.0.url }}">{{ tag.0 }}</a></li>
{% endfor %}
</ul>
You should then also define CSS styles with appropriate classes (tag-1 to tag-N,
where N matches ``TAG_CLOUD_STEPS``), tag-1 being the most frequent, and
define a ``ul.tagcloud`` class with appropriate list-style to create the cloud.
For example::
ul.tagcloud {
list-style: none;
padding: 0;
}
ul.tagcloud li {
display: inline-block;
}
li.tag-1 {
font-size: 150%;
}
li.tag-2 {
font-size: 120%;
}
...
Translations
============
Pelican offers a way to translate articles. See the :doc:`Content <content>` section for
more information.
======================================================== =====================================================
Setting name (followed by default value, if any) What does it do?
======================================================== =====================================================
``DEFAULT_LANG = 'en'`` The default language to use.
``TRANSLATION_FEED_ATOM = 'feeds/all-%s.atom.xml'`` [3]_ Where to put the Atom feed for translations.
``TRANSLATION_FEED_RSS = None``, i.e. no RSS Where to put the RSS feed for translations.
======================================================== =====================================================
.. [3] %s is the language
Ordering content
================
================================================ =====================================================
Setting name (followed by default value) What does it do?
================================================ =====================================================
``NEWEST_FIRST_ARCHIVES = True`` Order archives by newest first by date. (False:
orders by date with older articles first.)
``REVERSE_CATEGORY_ORDER = False`` Reverse the category order. (True: lists by reverse
alphabetical order; default lists alphabetically.)
================================================ =====================================================
Themes
======
Creating Pelican themes is addressed in a dedicated section (see :ref:`theming-pelican`).
However, here are the settings that are related to themes.
================================================ =====================================================
Setting name (followed by default value, if any) What does it do?
================================================ =====================================================
``THEME`` Theme to use to produce the output. Can be a relative
or absolute path to a theme folder, or the name of a
default theme or a theme installed via
``pelican-themes`` (see below).
``THEME_STATIC_DIR = 'theme'`` Destination directory in the output path where
Pelican will place the files collected from
`THEME_STATIC_PATHS`. Default is `theme`.
``THEME_STATIC_PATHS = ['static']`` Static theme paths you want to copy. Default
value is `static`, but if your theme has
other static paths, you can put them here. If files
or directories with the same names are included in
the paths defined in this settings, they will be
progressively overwritten.
``CSS_FILE = 'main.css'`` Specify the CSS file you want to load.
================================================ =====================================================
By default, two themes are available. You can specify them using the ``THEME``
setting or by passing the ``-t`` option to the ``pelican`` command:
* notmyidea
* simple (a synonym for "plain text" :)
There are a number of other themes available at https://github.com/getpelican/pelican-themes.
Pelican comes with :doc:`pelican-themes`, a small script for managing themes.
You can define your own theme, either by starting from scratch or by duplicating
and modifying a pre-existing theme. Here is :doc:`a guide on how to create your theme <themes>`.
Following are example ways to specify your preferred theme::
# Specify name of a built-in theme
THEME = "notmyidea"
# Specify name of a theme installed via the pelican-themes tool
THEME = "chunk"
# Specify a customized theme, via path relative to the settings file
THEME = "themes/mycustomtheme"
# Specify a customized theme, via absolute path
THEME = "/home/myuser/projects/mysite/themes/mycustomtheme"
The built-in ``notmyidea`` theme can make good use of the following settings. Feel
free to use them in your themes as well.
======================= =======================================================
Setting name What does it do?
======================= =======================================================
``SITESUBTITLE`` A subtitle to appear in the header.
``DISQUS_SITENAME`` Pelican can handle Disqus comments. Specify the
Disqus sitename identifier here.
``GITHUB_URL`` Your GitHub URL (if you have one). It will then
use this information to create a GitHub ribbon.
``GOOGLE_ANALYTICS`` Set to 'UA-XXXX-YYYY' to activate Google Analytics.
``GOSQUARED_SITENAME`` Set to 'XXX-YYYYYY-X' to activate GoSquared.
``MENUITEMS`` A list of tuples (Title, URL) for additional menu
items to appear at the beginning of the main menu.
``PIWIK_URL`` URL to your Piwik server - without 'http://' at the
beginning.
``PIWIK_SSL_URL`` If the SSL-URL differs from the normal Piwik-URL
you have to include this setting too. (optional)
``PIWIK_SITE_ID`` ID for the monitored website. You can find the ID
in the Piwik admin interface > Settings > Websites.
``LINKS`` A list of tuples (Title, URL) for links to appear on
the header.
``SOCIAL`` A list of tuples (Title, URL) to appear in the
"social" section.
``TWITTER_USERNAME`` Allows for adding a button to articles to encourage
others to tweet about them. Add your Twitter username
if you want this button to appear.
======================= =======================================================
In addition, you can use the "wide" version of the ``notmyidea`` theme by
adding the following to your configuration::
CSS_FILE = "wide.css"
Logging
=======
Sometimes, a long list of warnings may appear during site generation. Finding
the **meaningful** error message in the middle of tons of annoying log output
can be quite tricky. In order to filter out redundant log messages, Pelican
comes with the ``LOG_FILTER`` setting.
``LOG_FILTER`` should be a list of tuples ``(level, msg)``, each of them being
composed of the logging level (up to ``warning``) and the message to be ignored.
Simply populate the list with the log messages you want to hide, and they will
be filtered out.
For example: ``[(logging.WARN, 'TAG_SAVE_AS is set to False')]``
.. _reading_only_modified_content:
Reading only modified content
=============================
To speed up the build process, Pelican can optionally read only articles
and pages with modified content.
When Pelican is about to read some content source file:
1. The hash or modification time information for the file from a
previous build are loaded from a cache file if ``LOAD_CONTENT_CACHE``
is ``True``. These files are stored in the ``CACHE_PATH``
directory. If the file has no record in the cache file, it is read
as usual.
2. The file is checked according to ``CHECK_MODIFIED_METHOD``:
- If set to ``'mtime'``, the modification time of the file is
checked.
- If set to a name of a function provided by the ``hashlib``
module, e.g. ``'md5'``, the file hash is checked.
- If set to anything else or the necessary information about the
file cannot be found in the cache file, the content is read as
usual.
3. If the file is considered unchanged, the content data saved in a
previous build corresponding to the file is loaded from the cache,
and the file is not read.
4. If the file is considered changed, the file is read and the new
modification information and the content data are saved to the
cache if ``CACHE_CONTENT`` is ``True``.
If ``CONTENT_CACHING_LAYER`` is set to ``'reader'`` (the default),
the raw content and metadata returned by a reader are cached. If this
setting is instead set to ``'generator'``, the processed content
object is cached. Caching the processed content object may conflict
with plugins (as some reading related signals may be skipped) and the
``WITH_FUTURE_DATES`` functionality (as the ``draft`` status of the
cached content objects would not change automatically over time).
Checking modification times is faster than comparing file hashes,
but it is not as reliable because ``mtime`` information can be lost,
e.g., when copying content source files using the ``cp`` or ``rsync``
commands without the ``mtime`` preservation mode (which for ``rsync``
can be invoked by passing the ``--archive`` flag).
The cache files are Python pickles, so they may not be readable by
different versions of Python as the pickle format often changes. If
such an error is encountered, the cache files have to be rebuilt by
removing them and re-running Pelican, or by using the Pelican
command-line option ``--ignore-cache``. The cache files also have to
be rebuilt when changing the ``GZIP_CACHE`` setting for cache file
reading to work properly.
The ``--ignore-cache`` command-line option is also useful when the
whole cache needs to be regenerated, such as when making modifications
to the settings file that will affect the cached content, or just for
debugging purposes. When Pelican runs in autoreload mode, modification
of the settings file will make it ignore the cache automatically if
``AUTORELOAD_IGNORE_CACHE`` is ``True``.
Note that even when using cached content, all output is always
written, so the modification times of the generated ``*.html`` files
will always change. Therefore, ``rsync``-based uploading may benefit
from the ``--checksum`` option.
.. _writing_only_selected_content:
Writing only selected content
=============================
When only working on a single article or page, or making tweaks to
your theme, it is often desirable to generate and review your work
as quickly as possible. In such cases, generating and writing the
entire site output is often unnecessary. By specifying only the
desired files as output paths in the ``WRITE_SELECTED`` list,
**only** those files will be written. This list can be also specified
on the command line using the ``--write-selected`` option, which
accepts a comma-separated list of output file paths. By default this
list is empty, so all output is written.
Example settings
================
.. literalinclude:: ../samples/pelican.conf.py
:language: python
.. _Jinja custom filters documentation: http://jinja.pocoo.org/docs/api/#custom-filters
.. _Docutils Configuration: http://docutils.sourceforge.net/docs/user/config.html
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