Settings
********

Pelican is configurable thanks to a settings file you can pass to the
command line:

   pelican content -s path/to/your/pelicanconf.py

If you used the "pelican-quickstart" command, your primary settings
file will be named "pelicanconf.py" by default.

Note: When experimenting with different settings (especially the
  metadata ones) caching may interfere and the changes may not be
  visible. In such cases disable caching with "LOAD_CONTENT_CACHE =
  False" or use the "--ignore-cache" command-line switch.

Settings are configured in the form of a Python module (a file). There
is an example settings file available for reference.

To see a list of current settings in your environment, including both
default and any customized values, run the following command (append
one or more specific setting names as arguments to see values for
those settings only):

   pelican --print-settings

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
==============

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.

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.

DOCUTILS_SETTINGS = {}

   Extra configuration settings for the docutils publisher (applicable
   only to reStructuredText). See Docutils Configuration settings for
   more details.

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 list of filenames that should be retained and not deleted from
   the output directory. One use case would be the preservation of
   version control data.

   Example:

      OUTPUT_RETENTION = [".hg", ".git", ".bzr"]

JINJA_ENVIRONMENT = {'trim_blocks': True, 'lstrip_blocks': True}

   A dictionary of custom Jinja2 environment variables you want to
   use. This also includes a list of extensions you may want to
   include. See Jinja Environment documentation.

JINJA_FILTERS = {}

   A dictionary of custom Jinja2 filters you want to use.  The
   dictionary should map the filtername to the filter function.

   Example:

      JINJA_FILTERS = {'urlencode': urlencode_filter}

   See Jinja custom filters documentation.

LOG_FILTER = []

   A list of tuples containing the logging level (up to "warning") and
   the message to be ignored.

   Example:

      LOG_FILTER = [(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 glob patterns.  Files and directories matching any of
   these patterns will be ignored by the processor. For example, the
   default "['.#*']" will ignore emacs lock files, and
   "['__pycache__']" would ignore Python 3's bytecode caches.

MARKDOWN = {...}

   Extra configuration settings for the Markdown processor. Refer to
   the Python Markdown documentation's Options section for a complete
   list of supported options. The "extensions" option will be
   automatically computed from the "extension_configs" option.

   Defaults to:

      MARKDOWN = {
          'extension_configs': {
              'markdown.extensions.codehilite': {'css_class': 'highlight'},
              'markdown.extensions.extra': {},
              'markdown.extensions.meta': {},
          },
          'output_format': 'html5',
      }

   Note: The dictionary defined in your settings file will replace
     this default one.

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 and files 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 and files 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.

PLUGINS = []

   The list of plugins to load. See Plugins.

PLUGIN_PATHS = []

   A list of directories where to look for plugins. See Plugins.

SITENAME = 'A Pelican Blog'

   Your site name

SITEURL

   Base URL of your web site. 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. If your site is available via HTTPS,
   this setting should begin with "https://" — otherwise use
   "http://". Then append your domain, with no trailing slash at the
   end. Example: "SITEURL = 'https://example.com'"

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". This setting is for backward
   compatibility with Pelican releases before version 3.5.  It has no
   effect unless "STATIC_PATHS" contains a directory that is also in
   "ARTICLE_PATHS" or "PAGE_PATHS". If you are trying to publish your
   site's source files, consider using the "OUTPUT_SOURCES" setting
   instead.

STATIC_CREATE_LINKS = False

   Create links instead of copying files. If the content and output
   directories are on the same device, then create hard links.  Falls
   back to symbolic links if the output directory is on a different
   filesystem. If symlinks are created, don't forget to add the "-L"
   or "--copy-links" option to rsync when uploading your site.

STATIC_CHECK_IF_MODIFIED = False

   If set to "True", and "STATIC_CREATE_LINKS" is "False", compare
   mtimes of content and output files, and only copy content files
   that are newer than existing output files.

TYPOGRIFY = False

   If set to True, several typographical improvements will be
   incorporated into the generated HTML via the 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

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.

WITH_FUTURE_DATES = True

   If disabled, content with dates in the future will get a default
   status of "draft". See 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
   Linking to internal content.

PYGMENTS_RST_OPTIONS = []

   A list of default Pygments settings for your reStructuredText code
   blocks. See Syntax highlighting 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 = False

   If "True", saves content in caches.  See 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 = False

   If "True", load unmodified content from caches.

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 Writing only selected content.

FORMATTED_FIELDS = ['summary']

   A list of metadata fields containing reST/Markdown content to be
   parsed and translated to HTML.

PORT = 8000

   The TCP port to serve content from the output folder via HTTP when
   pelican is run with --listen

BIND = ''

   The IP to which to bind the HTTP server.


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 Installation
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 (see
example below). 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.

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'
   PAGE_URL = 'pages/{slug}/'
   PAGE_SAVE_AS = 'pages/{slug}/index.html'

This would save your articles into something like "/posts/2011/Aug/07
/sample-post/index.html", save your pages into
"/pages/about/index.html", and render them available at URLs of
"/posts/2011/Aug/07/sample-post/" and "/pages/about/", respectively.

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.

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_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_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.

DRAFT_PAGE_URL = 'drafts/pages/{slug}.html'

   The URL used to link to a page draft.

DRAFT_PAGE_SAVE_AS = 'drafts/pages/{slug}.html'

   The actual location a page draft is saved at.

DRAFT_PAGE_LANG_URL = 'drafts/pages/{slug}-{lang}.html'

   The URL used to link to a page draft which doesn't use the default
   language.

DRAFT_PAGE_LANG_SAVE_AS = 'drafts/pages/{slug}-{lang}.html'

   The actual location a page draft which doesn't use the default
   language is saved at.

AUTHOR_URL = 'author/{slug}.html'

   The URL to use for an author.

AUTHOR_SAVE_AS = 'author/{slug}.html'

   The location to save an author.

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.

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.

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.

YEAR_ARCHIVE_URL = ''

   The URL to use for per-year archives of your posts. Used only if
   you have the "{url}" placeholder in "PAGINATION_PATTERNS".

YEAR_ARCHIVE_SAVE_AS = ''

   The location to save per-year archives of your posts.

MONTH_ARCHIVE_URL = ''

   The URL to use for per-month archives of your posts. Used only if
   you have the "{url}" placeholder in "PAGINATION_PATTERNS".

MONTH_ARCHIVE_SAVE_AS = ''

   The location to save per-month archives of your posts.

DAY_ARCHIVE_URL = ''

   The URL to use for per-day archives of your posts. Used only if you
   have the "{url}" placeholder in "PAGINATION_PATTERNS".

DAY_ARCHIVE_SAVE_AS = ''

   The location to save per-day archives of your posts.

"DIRECT_TEMPLATES" work a bit differently than noted above. Only the
"_SAVE_AS" settings are available, but it is available for any direct
template.

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.

INDEX_SAVE_AS = 'index.html'

   The location to save the list of all articles.

URLs for direct template pages are theme-dependent. Some themes use
corresponding "*_URL" setting as string, while others hard-code them:
"'archives.html'", "'authors.html'", "'categories.html'",
"'tags.html'".

SLUG_REGEX_SUBSTITUTIONS = [
(r'[^\w\s-]', ''),  # remove non-alphabetical/whitespace/'-' chars
(r'(?u)\A\s*', ''),  # strip leading whitespace
(r'(?u)\s*\Z', ''),  # strip trailing whitespace
(r'[-\s]+', '-'),  # reduce multiple whitespace or '-' to single '-'
]

   Regex substitutions to make when generating slugs of articles and
   pages. Specified as a list of pairs of "(from, to)" which are
   applied in order, ignoring case. The default substitutions have the
   effect of removing non-alphanumeric characters and converting
   internal whitespace to dashes. Apart from these substitutions,
   slugs are always converted to lowercase ascii characters and
   leading and trailing whitespace is stripped. Useful for backward
   compatibility with existing URLs.

AUTHOR_REGEX_SUBSTITUTIONS = SLUG_REGEX_SUBSTITUTIONS

   Regex substitutions for author slugs. Defaults to
   "SLUG_REGEX_SUBSTITUTIONS".

CATEGORY_REGEX_SUBSTITUTIONS = SLUG_REGEX_SUBSTITUTIONS

   Regex substitutions for category slugs. Defaults to
   "SLUG_REGEX_SUBSTITUTIONS".

TAG_REGEX_SUBSTITUTIONS = SLUG_REGEX_SUBSTITUTIONS

   Regex substitutions for tag slugs. Defaults to
   "SLUG_REGEX_SUBSTITUTIONS".


Time and Date
=============

TIMEZONE

   The timezone used in the date information, to generate Atom and RSS
   feeds.

   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.

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 given any other string, it will
   be parsed by the same method as article 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_DATE_FORMAT = '%a %d %B %Y'

   The default date format you want to use.

DATE_FORMATS = {}

   If you manage multiple languages, you can set the date formatting
   here.

   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 the "-"
   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".

      DATE_FORMATS = {
          'en': '%a, %d %b %Y',
          'jp': '%Y-%m-%d(%a)',
      }

   It is also possible to set different locale settings for each
   language by using a "(locale, format)" tuple as a dictionary value
   which will override the "LOCALE" setting:

      # 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)'),
      }

LOCALE

   Change the locale [1]. 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.

   You can set locale to further control date format:

       LOCALE = ('usa', 'jpn',      # On Windows
                 'en_US', 'ja_JP'   # On Unix/Linux
      )

   For a list of available locales refer to locales on Windows  or on
   Unix/Linux, use the "locale -a" command; see manpage locale(1) for
   more information.

[1] Default is the system locale.


Template pages
==============

TEMPLATE_PAGES = None

   A mapping containing template pages that will be rendered with the
   blog entries. See 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'}

TEMPLATE_EXTENSIONS = ['.html']

   The extensions to use when looking up template files from template
   names.

DIRECT_TEMPLATES = ['index', 'authors', 'categories', 'tags', '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., category and tag index pages). If the
   author, category and tag collections are not needed, set
   "DIRECT_TEMPLATES = ['index', 'archives']"

   "DIRECT_TEMPLATES" are searched for over paths maintained in
   "THEME_TEMPLATES_OVERRIDES".


Metadata
========

AUTHOR

   Default author (usually your name).

DEFAULT_METADATA = {}

   The default metadata you want to use for all articles and pages.

FILENAME_METADATA = r'(?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, to extract both the date and the slug:

      FILENAME_METADATA = r'(?P<date>\d{4}-\d{2}-\d{2})_(?P<slug>.*)'

   See also "SLUGIFY_SOURCE".

PATH_METADATA = ''

   Like "FILENAME_METADATA", but parsed from a page's full path
   relative to the content source directory.

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. Paths to
   a directory apply to all files under it. The most-specific path
   wins conflicts.

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":

   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:

   # Take advantage of the following defaults
   # STATIC_SAVE_AS = '{path}'
   # STATIC_URL = '{path}'
   STATIC_PATHS = [
       'static/robots.txt',
       ]
   EXTRA_PATH_METADATA = {
       'static/robots.txt': {'path': 'robots.txt'},
       }


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:

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.,
   "https://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

   The location to save the Atom feed.

FEED_ATOM_URL = None

   Relative URL of the Atom feed. If not set, "FEED_ATOM" is used both
   for save location and URL.

FEED_RSS = None, i.e. no RSS

   The location to save the RSS feed.

FEED_RSS_URL = None

   Relative URL of the RSS feed. If not set, "FEED_RSS" is used both
   for save location and URL.

FEED_ALL_ATOM = 'feeds/all.atom.xml'

   The location to save the all-posts Atom feed: this feed will
   contain all posts regardless of their language.

FEED_ALL_ATOM_URL = None

   Relative URL of the all-posts Atom feed. If not set,
   "FEED_ALL_ATOM" is used both for save location and URL.

FEED_ALL_RSS = None, i.e. no all-posts RSS

   The location to save the the all-posts RSS feed: this feed will
   contain all posts regardless of their language.

FEED_ALL_RSS_URL = None

   Relative URL of the all-posts RSS feed. If not set, "FEED_ALL_RSS"
   is used both for save location and URL.

CATEGORY_FEED_ATOM = 'feeds/{slug}.atom.xml'

   The location to save the category Atom feeds. [2]

CATEGORY_FEED_ATOM_URL = None

   Relative URL of the category Atom feeds, including the "{slug}"
   placeholder. [2] If not set, "CATEGORY_FEED_ATOM" is used both for
   save location and URL.

CATEGORY_FEED_RSS = None, i.e. no RSS

   The location to save the category RSS feeds, including the "{slug}"
   placeholder. [2]

CATEGORY_FEED_RSS_URL = None

   Relative URL of the category RSS feeds, including the "{slug}"
   placeholder. [2] If not set, "CATEGORY_FEED_RSS" is used both for
   save location and URL.

AUTHOR_FEED_ATOM = 'feeds/{slug}.atom.xml'

   The location to save the author Atom feeds. [2]

AUTHOR_FEED_ATOM_URL = None

   Relative URL of the author Atom feeds, including the "{slug}"
   placeholder. [2] If not set, "AUTHOR_FEED_ATOM" is used both for
   save location and URL.

AUTHOR_FEED_RSS = 'feeds/{slug}.rss.xml'

   The location to save the author RSS feeds. [2]

AUTHOR_FEED_RSS_URL = None

   Relative URL of the author RSS feeds, including the "{slug}"
   placeholder. [2] If not set, "AUTHOR_FEED_RSS" is used both for
   save location and URL.

TAG_FEED_ATOM = None, i.e. no tag feed

   The location to save the tag Atom feed, including the "{slug}"
   placeholder. [2]

TAG_FEED_ATOM_URL = None

   Relative URL of the tag Atom feed, including the "{slug}"
   placeholder. [2]

TAG_FEED_RSS = None, i.e. no RSS tag feed

   Relative URL to output the tag RSS feed, including the "{slug}"
   placeholder. If not set, "TAG_FEED_RSS" is used both for save
   location and URL.

FEED_MAX_ITEMS

   Maximum number of items allowed in a feed. Feed item quantity is
   unrestricted by default.

RSS_FEED_SUMMARY_ONLY = True

   Only include item summaries in the "description" tag of RSS feeds.
   If set to "False", the full content will be included instead. This
   setting doesn't affect Atom feeds, only RSS ones.

If you don't want to generate some or any of these feeds, set the
above variables to "None".

[2] "{slug}" is replaced by name of the category / author / tag.


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.

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.

PAGINATED_TEMPLATES = {'index': None, 'tag': None, 'category': None, 'author': None}

   The templates to use pagination with, and the number of articles to
   include on a page. If this value is "None", it defaults to
   "DEFAULT_PAGINATION".

PAGINATION_PATTERNS = (
(1, '{name}{extension}', '{name}{extension}'),
(2, '{name}{number}{extension}', '{name}{number}{extension}'),
)

      A set of patterns that are used to determine advanced pagination
      output.


Using Pagination Patterns
-------------------------

By default, pages subsequent to ".../foo.html" are created as
".../foo2.html", etc. The "PAGINATION_PATTERNS" setting can be used to
change this. It takes a sequence of triples, where each triple
consists of:

   (minimum_page, page_url, page_save_as,)

For "page_url" and "page_save_as", you may use a number of variables.
"{url}" and "{save_as}" correspond respectively to the "*_URL" and
"*_SAVE_AS" values of the corresponding page type (e.g.
"ARTICLE_SAVE_AS"). If "{save_as} == foo/bar.html", then "{name} ==
foo/bar" and "{extension} == .html". "{base_name}" equals "{name}"
except that it strips trailing "/index" if present. "{number}" equals
the page number.

For example, if you want to leave the first page unchanged, but place
subsequent pages at ".../page/2/" etc, you could set
"PAGINATION_PATTERNS" as follows:

   PAGINATION_PATTERNS = (
       (1, '{url}', '{save_as}`,
       (2, '{base_name}/page/{number}/', '{base_name}/page/{number}/index.html'),
   )


Translations
============

Pelican offers a way to translate articles. See the Content section
for more information.

DEFAULT_LANG = 'en'

   The default language to use.

ARTICLE_TRANSLATION_ID = 'slug'

   The metadata attribute(s) used to identify which articles are
   translations of one another. May be a string or a collection of
   strings. Set to "None" or "False" to disable the identification of
   translations.

PAGE_TRANSLATION_ID = 'slug'

   The metadata attribute(s) used to identify which pages are
   translations of one another. May be a string or a collection of
   strings. Set to "None" or "False" to disable the identification of
   translations.

TRANSLATION_FEED_ATOM = 'feeds/all-{lang}.atom.xml'

   The location to save the Atom feed for translations. [3]

TRANSLATION_FEED_ATOM_URL = None

   Relative URL of the Atom feed for translations, including the
   "{lang}" placeholder. [3] If not set, "TRANSLATION_FEED_ATOM" is
   used both for save location and URL.

TRANSLATION_FEED_RSS = None, i.e. no RSS

   Where to put the RSS feed for translations.

TRANSLATION_FEED_RSS_URL = None

   Relative URL of the RSS feed for translations, including the
   "{lang}" placeholder. [3] If not set, "TRANSLATION_FEED_RSS" is
   used both for save location and URL.

[3] {lang} is the language code


Ordering content
================

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.)

ARTICLE_ORDER_BY = 'reversed-date'

   Defines how the articles ("articles_page.object_list" in the
   template) are sorted. Valid options are: metadata as a string (use
   "reversed-" prefix the reverse the sort order), special option
   "'basename'" which will use the basename of the file (without path)
   or a custom function to extract the sorting key from articles. The
   default value, "'reversed-date'", will sort articles by date in
   reverse order (i.e. newest article comes first).

PAGE_ORDER_BY = 'basename'

   Defines how the pages ("pages" variable in the template) are
   sorted. Options are same as "ARTICLE_ORDER_BY".  The default value,
   "'basename'" will sort pages by their basename.


Themes
======

Creating Pelican themes is addressed in a dedicated section (see
Creating themes). However, here are the settings that are related to
themes.

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.

THEME_TEMPLATES_OVERRIDES = []

   A list of paths you want Jinja2 to search for templates before
   searching the theme's "templates/" directory.  Allows for
   overriding individual theme template files without having to fork
   an existing theme.  Jinja2 searches in the following order: files
   in "THEME_TEMPLATES_OVERRIDES" first, then the theme's
   "templates/".

   You can also extend templates from the theme using the "{% extends
   %}" directive utilizing the "!theme" prefix as shown in the
   following example:

      {% extends '!theme/article.html' %}

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
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 a guide on how
to create your theme.

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.

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-XXXXX-Y" Property's tracking ID to activate Google
   Analytics.

GA_COOKIE_DOMAIN

   Set cookie domain field of Google Analytics tracking code. Defaults
   to "auto".

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.

LINKS_WIDGET_NAME

   Allows override of the name of the links widget.  If not specified,
   defaults to "links".

SOCIAL_WIDGET_NAME

   Allows override of the name of the "social" widget.  If not
   specified, defaults to "social".

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:

   import logging
   LOG_FILTER = [(logging.WARN, 'TAG_SAVE_AS is set to False')]

It is possible to filter out messages by a template. Check out source
code to obtain a template.

For example:

   import logging
   LOG_FILTER = [(logging.WARN, 'Empty alt attribute for image %s in %s')]

Warning: Silencing messages by templates is a dangerous feature. It
  is possible to unintentionally filter out multiple message types
  with the same template (including messages from future Pelican
  versions). Proceed with caution.

Note: This option does nothing if "--debug" is passed.


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, it is caught and the cache file is
rebuilt automatically in the new format. The cache files will also be
rebuilt after the "GZIP_CACHE" setting has been changed.

The "--ignore-cache" command-line option is 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
=============================

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. See Site generation for more details.


Example settings
================

   # -*- coding: utf-8 -*-
   from __future__ import unicode_literals

   AUTHOR = 'Alexis Métaireau'
   SITENAME = "Alexis' log"
   SITESUBTITLE = 'A personal blog.'
   SITEURL = 'http://blog.notmyidea.org'
   TIMEZONE = "Europe/Paris"

   # can be useful in development, but set to False when you're ready to publish
   RELATIVE_URLS = True

   GITHUB_URL = 'http://github.com/ametaireau/'
   DISQUS_SITENAME = "blog-notmyidea"
   REVERSE_CATEGORY_ORDER = True
   LOCALE = "C"
   DEFAULT_PAGINATION = 4
   DEFAULT_DATE = (2012, 3, 2, 14, 1, 1)

   FEED_ALL_RSS = 'feeds/all.rss.xml'
   CATEGORY_FEED_RSS = 'feeds/{slug}.rss.xml'

   LINKS = (('Biologeek', 'http://biologeek.org'),
            ('Filyb', "http://filyb.info/"),
            ('Libert-fr', "http://www.libert-fr.com"),
            ('N1k0', "http://prendreuncafe.com/blog/"),
            ('Tarek Ziadé', "http://ziade.org/blog"),
            ('Zubin Mithra', "http://zubin71.wordpress.com/"),)

   SOCIAL = (('twitter', 'http://twitter.com/ametaireau'),
             ('lastfm', 'http://lastfm.com/user/akounet'),
             ('github', 'http://github.com/ametaireau'),)

   # global metadata to all the contents
   DEFAULT_METADATA = {'yeah': 'it is'}

   # path-specific metadata
   EXTRA_PATH_METADATA = {
       'extra/robots.txt': {'path': 'robots.txt'},
       }

   # static paths will be copied without parsing their contents
   STATIC_PATHS = [
       'pictures',
       'extra/robots.txt',
       ]

   # custom page generated with a jinja2 template
   TEMPLATE_PAGES = {'pages/jinja2_template.html': 'jinja2_template.html'}

   # code blocks with line numbers
   PYGMENTS_RST_OPTIONS = {'linenos': 'table'}

   # foobar will not be used, because it's not in caps. All configuration keys
   # have to be in caps
   foobar = "barbaz"
