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pelican-theme/pelican/settings.py
Johannes 'josch' Schauer a5edbf8546 Remove develop_server.sh in favour of pelican serving static files itself
Competing static site generators integrate the functionality of regenerating
content and serving it into their main executable. In pelican this
functionality used to be in an external script `develop_server.sh` which
resides in the blog base directory. This has the disadvantage that changes in
pelican can break the `develop_server.sh` scripts which will not automatically
be upgraded together with pelican by package managers. Thus, pelican should
integrate this functionality into its main executable.

To this end, this commit removes `develop_server.sh` and adds three command
line options to the pelican executable:

 * `-l/--listen` starts the HTTP server (`-s/--serve` was already taken)
 * `-p/--port` specifies the port to listen at
 * `-b/--bind` specifies the IP to bind to

`--listen` and `--autoreload` can be used together to achieve the same
effect that other static site generators offer: Serve files via HTTP
while at the same time auto-generating the content.

Since the `develop_server.sh` script was removed, pelican-quickstart looses the
`develop` option.

Since the `develop_server.sh` script was removed, the Makefile looses the
`stopserver` target and the `devserver` target is replaced by running `pelican
-l` in the foreground.

Since pelican now offers the `--listen` option, the fabfile uses that instead
of starting the socketserver itself.
2018-06-22 19:22:38 +02:00

453 lines
17 KiB
Python

# -*- coding: utf-8 -*-
from __future__ import print_function, unicode_literals
import copy
import inspect
import locale
import logging
import os
from os.path import isabs
from posixpath import join as posix_join
import six
from pelican.log import LimitFilter
try:
# SourceFileLoader is the recommended way in Python 3.3+
from importlib.machinery import SourceFileLoader
def load_source(name, path):
return SourceFileLoader(name, path).load_module()
except ImportError:
# but it does not exist in Python 2.7, so fall back to imp
import imp
load_source = imp.load_source
logger = logging.getLogger(__name__)
DEFAULT_THEME = os.path.join(os.path.dirname(os.path.abspath(__file__)),
'themes', 'notmyidea')
DEFAULT_CONFIG = {
'PATH': os.curdir,
'ARTICLE_PATHS': [''],
'ARTICLE_EXCLUDES': [],
'PAGE_PATHS': ['pages'],
'PAGE_EXCLUDES': [],
'THEME': DEFAULT_THEME,
'OUTPUT_PATH': 'output',
'READERS': {},
'STATIC_PATHS': ['images'],
'STATIC_EXCLUDES': [],
'STATIC_EXCLUDE_SOURCES': True,
'THEME_STATIC_DIR': 'theme',
'THEME_STATIC_PATHS': ['static', ],
'FEED_ALL_ATOM': posix_join('feeds', 'all.atom.xml'),
'CATEGORY_FEED_ATOM': posix_join('feeds', '%s.atom.xml'),
'AUTHOR_FEED_ATOM': posix_join('feeds', '%s.atom.xml'),
'AUTHOR_FEED_RSS': posix_join('feeds', '%s.rss.xml'),
'TRANSLATION_FEED_ATOM': posix_join('feeds', 'all-%s.atom.xml'),
'FEED_MAX_ITEMS': '',
'RSS_FEED_SUMMARY_ONLY': True,
'SITEURL': '',
'SITENAME': 'A Pelican Blog',
'DISPLAY_PAGES_ON_MENU': True,
'DISPLAY_CATEGORIES_ON_MENU': True,
'DOCUTILS_SETTINGS': {},
'OUTPUT_SOURCES': False,
'OUTPUT_SOURCES_EXTENSION': '.text',
'USE_FOLDER_AS_CATEGORY': True,
'DEFAULT_CATEGORY': 'misc',
'WITH_FUTURE_DATES': True,
'CSS_FILE': 'main.css',
'NEWEST_FIRST_ARCHIVES': True,
'REVERSE_CATEGORY_ORDER': False,
'DELETE_OUTPUT_DIRECTORY': False,
'OUTPUT_RETENTION': [],
'INDEX_SAVE_AS': 'index.html',
'ARTICLE_URL': '{slug}.html',
'ARTICLE_SAVE_AS': '{slug}.html',
'ARTICLE_ORDER_BY': 'reversed-date',
'ARTICLE_LANG_URL': '{slug}-{lang}.html',
'ARTICLE_LANG_SAVE_AS': '{slug}-{lang}.html',
'DRAFT_URL': 'drafts/{slug}.html',
'DRAFT_SAVE_AS': posix_join('drafts', '{slug}.html'),
'DRAFT_LANG_URL': 'drafts/{slug}-{lang}.html',
'DRAFT_LANG_SAVE_AS': posix_join('drafts', '{slug}-{lang}.html'),
'PAGE_URL': 'pages/{slug}.html',
'PAGE_SAVE_AS': posix_join('pages', '{slug}.html'),
'PAGE_ORDER_BY': 'basename',
'PAGE_LANG_URL': 'pages/{slug}-{lang}.html',
'PAGE_LANG_SAVE_AS': posix_join('pages', '{slug}-{lang}.html'),
'STATIC_URL': '{path}',
'STATIC_SAVE_AS': '{path}',
'STATIC_CREATE_LINKS': False,
'STATIC_CHECK_IF_MODIFIED': False,
'CATEGORY_URL': 'category/{slug}.html',
'CATEGORY_SAVE_AS': posix_join('category', '{slug}.html'),
'TAG_URL': 'tag/{slug}.html',
'TAG_SAVE_AS': posix_join('tag', '{slug}.html'),
'AUTHOR_URL': 'author/{slug}.html',
'AUTHOR_SAVE_AS': posix_join('author', '{slug}.html'),
'PAGINATION_PATTERNS': [
(0, '{name}{number}{extension}', '{name}{number}{extension}'),
],
'YEAR_ARCHIVE_URL': '',
'YEAR_ARCHIVE_SAVE_AS': '',
'MONTH_ARCHIVE_URL': '',
'MONTH_ARCHIVE_SAVE_AS': '',
'DAY_ARCHIVE_URL': '',
'DAY_ARCHIVE_SAVE_AS': '',
'RELATIVE_URLS': False,
'DEFAULT_LANG': 'en',
'DIRECT_TEMPLATES': ['index', 'tags', 'categories', 'authors', 'archives'],
'THEME_TEMPLATES_OVERRIDES': [],
'PAGINATED_DIRECT_TEMPLATES': ['index'],
'PELICAN_CLASS': 'pelican.Pelican',
'DEFAULT_DATE_FORMAT': '%a %d %B %Y',
'DATE_FORMATS': {},
'MARKDOWN': {
'extension_configs': {
'markdown.extensions.codehilite': {'css_class': 'highlight'},
'markdown.extensions.extra': {},
'markdown.extensions.meta': {},
},
'output_format': 'html5',
},
'JINJA_FILTERS': {},
'JINJA_ENVIRONMENT': {
'trim_blocks': True,
'lstrip_blocks': True,
'extensions': [],
},
'LOG_FILTER': [],
'LOCALE': [''], # defaults to user locale
'DEFAULT_PAGINATION': False,
'DEFAULT_ORPHANS': 0,
'DEFAULT_METADATA': {},
'FILENAME_METADATA': r'(?P<date>\d{4}-\d{2}-\d{2}).*',
'PATH_METADATA': '',
'EXTRA_PATH_METADATA': {},
'ARTICLE_PERMALINK_STRUCTURE': '',
'TYPOGRIFY': False,
'TYPOGRIFY_IGNORE_TAGS': [],
'SUMMARY_MAX_LENGTH': 50,
'PLUGIN_PATHS': [],
'PLUGINS': [],
'PYGMENTS_RST_OPTIONS': {},
'TEMPLATE_PAGES': {},
'TEMPLATE_EXTENSIONS': ['.html'],
'IGNORE_FILES': ['.#*'],
'SLUG_SUBSTITUTIONS': (),
'INTRASITE_LINK_REGEX': '[{|](?P<what>.*?)[|}]',
'SLUGIFY_SOURCE': 'title',
'CACHE_CONTENT': False,
'CONTENT_CACHING_LAYER': 'reader',
'CACHE_PATH': 'cache',
'GZIP_CACHE': True,
'CHECK_MODIFIED_METHOD': 'mtime',
'LOAD_CONTENT_CACHE': False,
'WRITE_SELECTED': [],
'FORMATTED_FIELDS': ['summary'],
'PORT': 8000,
'BIND': '',
}
PYGMENTS_RST_OPTIONS = None
def read_settings(path=None, override=None):
if path:
local_settings = get_settings_from_file(path)
# Make the paths relative to the settings file
for p in ['PATH', 'OUTPUT_PATH', 'THEME', 'CACHE_PATH']:
if p in local_settings and local_settings[p] is not None \
and not isabs(local_settings[p]):
absp = os.path.abspath(os.path.normpath(os.path.join(
os.path.dirname(path), local_settings[p])))
if p != 'THEME' or os.path.exists(absp):
local_settings[p] = absp
if 'PLUGIN_PATH' in local_settings:
logger.warning('PLUGIN_PATH setting has been replaced by '
'PLUGIN_PATHS, moving it to the new setting name.')
local_settings['PLUGIN_PATHS'] = local_settings['PLUGIN_PATH']
del local_settings['PLUGIN_PATH']
if 'JINJA_EXTENSIONS' in local_settings:
logger.warning('JINJA_EXTENSIONS setting has been deprecated, '
'moving it to JINJA_ENVIRONMENT setting.')
local_settings['JINJA_ENVIRONMENT']['extensions'] = \
local_settings['JINJA_EXTENSIONS']
del local_settings['JINJA_EXTENSIONS']
if isinstance(local_settings['PLUGIN_PATHS'], six.string_types):
logger.warning("Defining PLUGIN_PATHS setting as string "
"has been deprecated (should be a list)")
local_settings['PLUGIN_PATHS'] = [local_settings['PLUGIN_PATHS']]
elif local_settings['PLUGIN_PATHS'] is not None:
def getabs(path, pluginpath):
if isabs(pluginpath):
return pluginpath
else:
path_dirname = os.path.dirname(path)
path_joined = os.path.join(path_dirname, pluginpath)
path_normed = os.path.normpath(path_joined)
path_absolute = os.path.abspath(path_normed)
return path_absolute
pluginpath_list = [getabs(path, pluginpath)
for pluginpath
in local_settings['PLUGIN_PATHS']]
local_settings['PLUGIN_PATHS'] = pluginpath_list
else:
local_settings = copy.deepcopy(DEFAULT_CONFIG)
if override:
local_settings.update(override)
parsed_settings = configure_settings(local_settings)
# This is because there doesn't seem to be a way to pass extra
# parameters to docutils directive handlers, so we have to have a
# variable here that we'll import from within Pygments.run (see
# rstdirectives.py) to see what the user defaults were.
global PYGMENTS_RST_OPTIONS
PYGMENTS_RST_OPTIONS = parsed_settings.get('PYGMENTS_RST_OPTIONS', None)
return parsed_settings
def get_settings_from_module(module=None, default_settings=DEFAULT_CONFIG):
"""Loads settings from a module, returns a dictionary."""
context = copy.deepcopy(default_settings)
if module is not None:
context.update(
(k, v) for k, v in inspect.getmembers(module) if k.isupper())
return context
def get_settings_from_file(path, default_settings=DEFAULT_CONFIG):
"""Loads settings from a file path, returning a dict."""
name, ext = os.path.splitext(os.path.basename(path))
module = load_source(name, path)
return get_settings_from_module(module, default_settings=default_settings)
def get_jinja_environment(settings):
"""Sets the environment for Jinja"""
jinja_env = settings.setdefault('JINJA_ENVIRONMENT',
DEFAULT_CONFIG['JINJA_ENVIRONMENT'])
# Make sure we include the defaults if the user has set env variables
for key, value in DEFAULT_CONFIG['JINJA_ENVIRONMENT'].items():
if key not in jinja_env:
jinja_env[key] = value
return settings
def configure_settings(settings):
"""Provide optimizations, error checking, and warnings for the given
settings.
Also, specify the log messages to be ignored.
"""
if 'PATH' not in settings or not os.path.isdir(settings['PATH']):
raise Exception('You need to specify a path containing the content'
' (see pelican --help for more information)')
# specify the log messages to be ignored
log_filter = settings.get('LOG_FILTER', DEFAULT_CONFIG['LOG_FILTER'])
LimitFilter._ignore.update(set(log_filter))
# lookup the theme in "pelican/themes" if the given one doesn't exist
if not os.path.isdir(settings['THEME']):
theme_path = os.path.join(
os.path.dirname(os.path.abspath(__file__)),
'themes',
settings['THEME'])
if os.path.exists(theme_path):
settings['THEME'] = theme_path
else:
raise Exception("Could not find the theme %s"
% settings['THEME'])
# make paths selected for writing absolute if necessary
settings['WRITE_SELECTED'] = [
os.path.abspath(path) for path in
settings.get('WRITE_SELECTED', DEFAULT_CONFIG['WRITE_SELECTED'])
]
# standardize strings to lowercase strings
for key in ['DEFAULT_LANG']:
if key in settings:
settings[key] = settings[key].lower()
# set defaults for Jinja environment
settings = get_jinja_environment(settings)
# standardize strings to lists
for key in ['LOCALE']:
if key in settings and isinstance(settings[key], six.string_types):
settings[key] = [settings[key]]
# check settings that must be a particular type
for key, types in [
('OUTPUT_SOURCES_EXTENSION', six.string_types),
('FILENAME_METADATA', six.string_types),
]:
if key in settings and not isinstance(settings[key], types):
value = settings.pop(key)
logger.warn(
'Detected misconfigured %s (%s), '
'falling back to the default (%s)',
key, value, DEFAULT_CONFIG[key])
# try to set the different locales, fallback on the default.
locales = settings.get('LOCALE', DEFAULT_CONFIG['LOCALE'])
for locale_ in locales:
try:
locale.setlocale(locale.LC_ALL, str(locale_))
break # break if it is successful
except locale.Error:
pass
else:
logger.warning(
"Locale could not be set. Check the LOCALE setting, ensuring it "
"is valid and available on your system.")
if ('SITEURL' in settings):
# If SITEURL has a trailing slash, remove it and provide a warning
siteurl = settings['SITEURL']
if (siteurl.endswith('/')):
settings['SITEURL'] = siteurl[:-1]
logger.warning("Removed extraneous trailing slash from SITEURL.")
# If SITEURL is defined but FEED_DOMAIN isn't,
# set FEED_DOMAIN to SITEURL
if 'FEED_DOMAIN' not in settings:
settings['FEED_DOMAIN'] = settings['SITEURL']
# check content caching layer and warn of incompatibilities
if settings.get('CACHE_CONTENT', False) and \
settings.get('CONTENT_CACHING_LAYER', '') == 'generator' and \
settings.get('WITH_FUTURE_DATES', False):
logger.warning(
"WITH_FUTURE_DATES conflicts with CONTENT_CACHING_LAYER "
"set to 'generator', use 'reader' layer instead")
# Warn if feeds are generated with both SITEURL & FEED_DOMAIN undefined
feed_keys = [
'FEED_ATOM', 'FEED_RSS',
'FEED_ALL_ATOM', 'FEED_ALL_RSS',
'CATEGORY_FEED_ATOM', 'CATEGORY_FEED_RSS',
'AUTHOR_FEED_ATOM', 'AUTHOR_FEED_RSS',
'TAG_FEED_ATOM', 'TAG_FEED_RSS',
'TRANSLATION_FEED_ATOM', 'TRANSLATION_FEED_RSS',
]
if any(settings.get(k) for k in feed_keys):
if not settings.get('SITEURL'):
logger.warning('Feeds generated without SITEURL set properly may'
' not be valid')
if 'TIMEZONE' not in settings:
logger.warning(
'No timezone information specified in the settings. Assuming'
' your timezone is UTC for feed generation. Check '
'http://docs.getpelican.com/en/latest/settings.html#timezone '
'for more information')
# fix up pagination rules
from pelican.paginator import PaginationRule
pagination_rules = [
PaginationRule(*r) for r in settings.get(
'PAGINATION_PATTERNS',
DEFAULT_CONFIG['PAGINATION_PATTERNS'],
)
]
settings['PAGINATION_PATTERNS'] = sorted(
pagination_rules,
key=lambda r: r[0],
)
# move {ARTICLE,PAGE}_DIR -> {ARTICLE,PAGE}_PATHS
for key in ['ARTICLE', 'PAGE']:
old_key = key + '_DIR'
new_key = key + '_PATHS'
if old_key in settings:
logger.warning(
'Deprecated setting %s, moving it to %s list',
old_key, new_key)
settings[new_key] = [settings[old_key]] # also make a list
del settings[old_key]
# Deprecated warning of EXTRA_TEMPLATES_PATHS
if 'EXTRA_TEMPLATES_PATHS' in settings:
logger.warning('EXTRA_TEMPLATES_PATHS is deprecated use '
'THEME_TEMPLATES_OVERRIDES instead.')
if ('THEME_TEMPLATES_OVERRIDES' in settings and
settings['THEME_TEMPLATES_OVERRIDES']):
raise Exception(
'Setting both EXTRA_TEMPLATES_PATHS and '
'THEME_TEMPLATES_OVERRIDES is not permitted. Please move to '
'only setting THEME_TEMPLATES_OVERRIDES.')
settings['THEME_TEMPLATES_OVERRIDES'] = \
settings['EXTRA_TEMPLATES_PATHS']
del settings['EXTRA_TEMPLATES_PATHS']
# Save people from accidentally setting a string rather than a list
path_keys = (
'ARTICLE_EXCLUDES',
'DEFAULT_METADATA',
'DIRECT_TEMPLATES',
'THEME_TEMPLATES_OVERRIDES',
'FILES_TO_COPY',
'IGNORE_FILES',
'PAGINATED_DIRECT_TEMPLATES',
'PLUGINS',
'STATIC_EXCLUDES',
'STATIC_PATHS',
'THEME_STATIC_PATHS',
'ARTICLE_PATHS',
'PAGE_PATHS',
)
for PATH_KEY in filter(lambda k: k in settings, path_keys):
if isinstance(settings[PATH_KEY], six.string_types):
logger.warning("Detected misconfiguration with %s setting "
"(must be a list), falling back to the default",
PATH_KEY)
settings[PATH_KEY] = DEFAULT_CONFIG[PATH_KEY]
# Deprecated warning of MD_EXTENSIONS
if 'MD_EXTENSIONS' in settings:
logger.warning('MD_EXTENSIONS is deprecated use MARKDOWN '
'instead. Falling back to the default.')
settings['MARKDOWN'] = DEFAULT_CONFIG['MARKDOWN']
# Add {PAGE,ARTICLE}_PATHS to {ARTICLE,PAGE}_EXCLUDES
mutually_exclusive = ('ARTICLE', 'PAGE')
for type_1, type_2 in [mutually_exclusive, mutually_exclusive[::-1]]:
try:
includes = settings[type_1 + '_PATHS']
excludes = settings[type_2 + '_EXCLUDES']
for path in includes:
if path not in excludes:
excludes.append(path)
except KeyError:
continue # setting not specified, nothing to do
for old, new, doc in [
('LESS_GENERATOR', 'the Webassets plugin', None),
('FILES_TO_COPY', 'STATIC_PATHS and EXTRA_PATH_METADATA',
'https://github.com/getpelican/pelican/'
'blob/master/docs/settings.rst#path-metadata'),
]:
if old in settings:
message = 'The {} setting has been removed in favor of {}'.format(
old, new)
if doc:
message += ', see {} for details'.format(doc)
logger.warning(message)
return settings