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537 lines
20 KiB
537 lines
20 KiB
2 weeks ago
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import argparse
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import logging
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import multiprocessing
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import os
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import pprint
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import sys
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import time
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import traceback
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from collections.abc import Iterable
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# Combines all paths to `pelican` package accessible from `sys.path`
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# Makes it possible to install `pelican` and namespace plugins into different
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# locations in the file system (e.g. pip with `-e` or `--user`)
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from pkgutil import extend_path
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__path__ = extend_path(__path__, __name__)
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# pelican.log has to be the first pelican module to be loaded
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# because logging.setLoggerClass has to be called before logging.getLogger
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from pelican.log import init as init_logging
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from pelican.generators import (ArticlesGenerator, # noqa: I100
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PagesGenerator, SourceFileGenerator,
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StaticGenerator, TemplatePagesGenerator)
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from pelican.plugins import signals
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from pelican.plugins._utils import get_plugin_name, load_plugins
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from pelican.readers import Readers
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from pelican.server import ComplexHTTPRequestHandler, RootedHTTPServer
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from pelican.settings import coerce_overrides, read_settings
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from pelican.utils import (FileSystemWatcher, clean_output_dir, maybe_pluralize)
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from pelican.writers import Writer
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try:
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__version__ = __import__('pkg_resources') \
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.get_distribution('pelican').version
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except Exception:
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__version__ = "unknown"
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DEFAULT_CONFIG_NAME = 'pelicanconf.py'
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logger = logging.getLogger(__name__)
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class Pelican:
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def __init__(self, settings):
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"""Pelican initialisation
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Performs some checks on the environment before doing anything else.
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"""
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# define the default settings
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self.settings = settings
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self.path = settings['PATH']
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self.theme = settings['THEME']
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self.output_path = settings['OUTPUT_PATH']
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self.ignore_files = settings['IGNORE_FILES']
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self.delete_outputdir = settings['DELETE_OUTPUT_DIRECTORY']
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self.output_retention = settings['OUTPUT_RETENTION']
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self.init_path()
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self.init_plugins()
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signals.initialized.send(self)
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def init_path(self):
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if not any(p in sys.path for p in ['', os.curdir]):
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logger.debug("Adding current directory to system path")
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sys.path.insert(0, '')
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def init_plugins(self):
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self.plugins = []
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for plugin in load_plugins(self.settings):
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name = get_plugin_name(plugin)
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logger.debug('Registering plugin `%s`', name)
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try:
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plugin.register()
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self.plugins.append(plugin)
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except Exception as e:
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logger.error('Cannot register plugin `%s`\n%s',
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name, e)
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self.settings['PLUGINS'] = [get_plugin_name(p) for p in self.plugins]
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def run(self):
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"""Run the generators and return"""
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start_time = time.time()
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context = self.settings.copy()
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# Share these among all the generators and content objects
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# They map source paths to Content objects or None
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context['generated_content'] = {}
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context['static_links'] = set()
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context['static_content'] = {}
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context['localsiteurl'] = self.settings['SITEURL']
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generators = [
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cls(
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context=context,
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settings=self.settings,
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path=self.path,
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theme=self.theme,
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output_path=self.output_path,
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) for cls in self._get_generator_classes()
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]
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# Delete the output directory if (1) the appropriate setting is True
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# and (2) that directory is not the parent of the source directory
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if (self.delete_outputdir
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and os.path.commonpath([os.path.realpath(self.output_path)]) !=
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os.path.commonpath([os.path.realpath(self.output_path),
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os.path.realpath(self.path)])):
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clean_output_dir(self.output_path, self.output_retention)
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for p in generators:
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if hasattr(p, 'generate_context'):
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p.generate_context()
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for p in generators:
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if hasattr(p, 'refresh_metadata_intersite_links'):
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p.refresh_metadata_intersite_links()
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signals.all_generators_finalized.send(generators)
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writer = self._get_writer()
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for p in generators:
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if hasattr(p, 'generate_output'):
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p.generate_output(writer)
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signals.finalized.send(self)
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articles_generator = next(g for g in generators
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if isinstance(g, ArticlesGenerator))
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pages_generator = next(g for g in generators
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if isinstance(g, PagesGenerator))
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pluralized_articles = maybe_pluralize(
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(len(articles_generator.articles) +
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len(articles_generator.translations)),
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'article',
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'articles')
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pluralized_drafts = maybe_pluralize(
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(len(articles_generator.drafts) +
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len(articles_generator.drafts_translations)),
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'draft',
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'drafts')
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pluralized_pages = maybe_pluralize(
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(len(pages_generator.pages) +
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len(pages_generator.translations)),
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'page',
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'pages')
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pluralized_hidden_pages = maybe_pluralize(
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(len(pages_generator.hidden_pages) +
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len(pages_generator.hidden_translations)),
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'hidden page',
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'hidden pages')
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pluralized_draft_pages = maybe_pluralize(
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(len(pages_generator.draft_pages) +
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len(pages_generator.draft_translations)),
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'draft page',
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'draft pages')
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print('Done: Processed {}, {}, {}, {} and {} in {:.2f} seconds.'
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.format(
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pluralized_articles,
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pluralized_drafts,
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pluralized_pages,
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pluralized_hidden_pages,
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pluralized_draft_pages,
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time.time() - start_time))
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def _get_generator_classes(self):
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discovered_generators = [
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(ArticlesGenerator, "internal"),
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(PagesGenerator, "internal")
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]
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if self.settings["TEMPLATE_PAGES"]:
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discovered_generators.append((TemplatePagesGenerator, "internal"))
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if self.settings["OUTPUT_SOURCES"]:
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discovered_generators.append((SourceFileGenerator, "internal"))
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for receiver, values in signals.get_generators.send(self):
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if not isinstance(values, Iterable):
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values = (values,)
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discovered_generators.extend(
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[(generator, receiver.__module__) for generator in values]
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)
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# StaticGenerator must run last, so it can identify files that
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# were skipped by the other generators, and so static files can
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# have their output paths overridden by the {attach} link syntax.
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discovered_generators.append((StaticGenerator, "internal"))
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generators = []
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for generator, origin in discovered_generators:
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if not isinstance(generator, type):
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logger.error("Generator %s (%s) cannot be loaded", generator, origin)
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continue
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logger.debug("Found generator: %s (%s)", generator.__name__, origin)
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generators.append(generator)
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return generators
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def _get_writer(self):
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writers = [w for _, w in signals.get_writer.send(self) if isinstance(w, type)]
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num_writers = len(writers)
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if num_writers == 0:
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return Writer(self.output_path, settings=self.settings)
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if num_writers > 1:
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logger.warning("%s writers found, using only first one", num_writers)
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writer = writers[0]
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logger.debug("Found writer: %s", writer)
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return writer(self.output_path, settings=self.settings)
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class PrintSettings(argparse.Action):
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def __call__(self, parser, namespace, values, option_string):
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instance, settings = get_instance(namespace)
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if values:
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# One or more arguments provided, so only print those settings
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for setting in values:
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if setting in settings:
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# Only add newline between setting name and value if dict
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if isinstance(settings[setting], dict):
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setting_format = '\n{}:\n{}'
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else:
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setting_format = '\n{}: {}'
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print(setting_format.format(
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setting,
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pprint.pformat(settings[setting])))
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else:
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print('\n{} is not a recognized setting.'.format(setting))
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break
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else:
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# No argument was given to --print-settings, so print all settings
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pprint.pprint(settings)
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parser.exit()
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class ParseDict(argparse.Action):
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def __call__(self, parser, namespace, values, option_string=None):
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d = {}
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if values:
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for item in values:
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split_items = item.split("=", 1)
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key = split_items[0].strip()
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value = split_items[1].strip()
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d[key] = value
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setattr(namespace, self.dest, d)
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def parse_arguments(argv=None):
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parser = argparse.ArgumentParser(
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description='A tool to generate a static blog, '
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' with restructured text input files.',
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formatter_class=argparse.ArgumentDefaultsHelpFormatter
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)
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parser.add_argument(dest='path', nargs='?',
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help='Path where to find the content files.',
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default=None)
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parser.add_argument('-t', '--theme-path', dest='theme',
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help='Path where to find the theme templates. If not '
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'specified, it will use the default one included with '
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'pelican.')
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parser.add_argument('-o', '--output', dest='output',
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help='Where to output the generated files. If not '
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'specified, a directory will be created, named '
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'"output" in the current path.')
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parser.add_argument('-s', '--settings', dest='settings',
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help='The settings of the application, this is '
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'automatically set to {} if a file exists with this '
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'name.'.format(DEFAULT_CONFIG_NAME))
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parser.add_argument('-d', '--delete-output-directory',
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dest='delete_outputdir', action='store_true',
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default=None, help='Delete the output directory.')
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parser.add_argument('-v', '--verbose', action='store_const',
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const=logging.INFO, dest='verbosity',
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help='Show all messages.')
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parser.add_argument('-q', '--quiet', action='store_const',
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const=logging.CRITICAL, dest='verbosity',
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help='Show only critical errors.')
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parser.add_argument('-D', '--debug', action='store_const',
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const=logging.DEBUG, dest='verbosity',
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help='Show all messages, including debug messages.')
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parser.add_argument('--version', action='version', version=__version__,
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help='Print the pelican version and exit.')
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parser.add_argument('-r', '--autoreload', dest='autoreload',
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action='store_true',
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help='Relaunch pelican each time a modification occurs'
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' on the content files.')
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parser.add_argument('--print-settings', dest='print_settings', nargs='*',
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action=PrintSettings, metavar='SETTING_NAME',
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help='Print current configuration settings and exit. '
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'Append one or more setting name arguments to see the '
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'values for specific settings only.')
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parser.add_argument('--relative-urls', dest='relative_paths',
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action='store_true',
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help='Use relative urls in output, '
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'useful for site development')
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parser.add_argument('--cache-path', dest='cache_path',
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help=('Directory in which to store cache files. '
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'If not specified, defaults to "cache".'))
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parser.add_argument('--ignore-cache', action='store_true',
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dest='ignore_cache', help='Ignore content cache '
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'from previous runs by not loading cache files.')
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parser.add_argument('-w', '--write-selected', type=str,
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dest='selected_paths', default=None,
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help='Comma separated list of selected paths to write')
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parser.add_argument('--fatal', metavar='errors|warnings',
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choices=('errors', 'warnings'), default='',
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help=('Exit the program with non-zero status if any '
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'errors/warnings encountered.'))
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parser.add_argument('--logs-dedup-min-level', default='WARNING',
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choices=('DEBUG', 'INFO', 'WARNING', 'ERROR'),
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help=('Only enable log de-duplication for levels equal'
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' to or above the specified value'))
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parser.add_argument('-l', '--listen', dest='listen', action='store_true',
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help='Serve content files via HTTP and port 8000.')
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parser.add_argument('-p', '--port', dest='port', type=int,
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help='Port to serve HTTP files at. (default: 8000)')
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parser.add_argument('-b', '--bind', dest='bind',
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help='IP to bind to when serving files via HTTP '
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'(default: 127.0.0.1)')
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parser.add_argument('-e', '--extra-settings', dest='overrides',
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help='Specify one or more SETTING=VALUE pairs to '
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'override settings. If VALUE contains spaces, '
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'add quotes: SETTING="VALUE". Values other than '
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'integers and strings can be specified via JSON '
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'notation. (e.g., SETTING=none)',
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nargs='*',
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action=ParseDict
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)
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args = parser.parse_args(argv)
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if args.port is not None and not args.listen:
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logger.warning('--port without --listen has no effect')
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if args.bind is not None and not args.listen:
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logger.warning('--bind without --listen has no effect')
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return args
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def get_config(args):
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config = {}
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||
|
|
if args.path:
|
||
|
|
config['PATH'] = os.path.abspath(os.path.expanduser(args.path))
|
||
|
|
if args.output:
|
||
|
|
config['OUTPUT_PATH'] = \
|
||
|
|
os.path.abspath(os.path.expanduser(args.output))
|
||
|
|
if args.theme:
|
||
|
|
abstheme = os.path.abspath(os.path.expanduser(args.theme))
|
||
|
|
config['THEME'] = abstheme if os.path.exists(abstheme) else args.theme
|
||
|
|
if args.delete_outputdir is not None:
|
||
|
|
config['DELETE_OUTPUT_DIRECTORY'] = args.delete_outputdir
|
||
|
|
if args.ignore_cache:
|
||
|
|
config['LOAD_CONTENT_CACHE'] = False
|
||
|
|
if args.cache_path:
|
||
|
|
config['CACHE_PATH'] = args.cache_path
|
||
|
|
if args.selected_paths:
|
||
|
|
config['WRITE_SELECTED'] = args.selected_paths.split(',')
|
||
|
|
if args.relative_paths:
|
||
|
|
config['RELATIVE_URLS'] = args.relative_paths
|
||
|
|
if args.port is not None:
|
||
|
|
config['PORT'] = args.port
|
||
|
|
if args.bind is not None:
|
||
|
|
config['BIND'] = args.bind
|
||
|
|
config['DEBUG'] = args.verbosity == logging.DEBUG
|
||
|
|
config.update(coerce_overrides(args.overrides))
|
||
|
|
|
||
|
|
return config
|
||
|
|
|
||
|
|
|
||
|
|
def get_instance(args):
|
||
|
|
|
||
|
|
config_file = args.settings
|
||
|
|
if config_file is None and os.path.isfile(DEFAULT_CONFIG_NAME):
|
||
|
|
config_file = DEFAULT_CONFIG_NAME
|
||
|
|
args.settings = DEFAULT_CONFIG_NAME
|
||
|
|
|
||
|
|
settings = read_settings(config_file, override=get_config(args))
|
||
|
|
|
||
|
|
cls = settings['PELICAN_CLASS']
|
||
|
|
if isinstance(cls, str):
|
||
|
|
module, cls_name = cls.rsplit('.', 1)
|
||
|
|
module = __import__(module)
|
||
|
|
cls = getattr(module, cls_name)
|
||
|
|
|
||
|
|
return cls(settings), settings
|
||
|
|
|
||
|
|
|
||
|
|
def autoreload(args, excqueue=None):
|
||
|
|
print(' --- AutoReload Mode: Monitoring `content`, `theme` and'
|
||
|
|
' `settings` for changes. ---')
|
||
|
|
pelican, settings = get_instance(args)
|
||
|
|
watcher = FileSystemWatcher(args.settings, Readers, settings)
|
||
|
|
sleep = False
|
||
|
|
while True:
|
||
|
|
try:
|
||
|
|
# Don't sleep first time, but sleep afterwards to reduce cpu load
|
||
|
|
if sleep:
|
||
|
|
time.sleep(0.5)
|
||
|
|
else:
|
||
|
|
sleep = True
|
||
|
|
|
||
|
|
modified = watcher.check()
|
||
|
|
|
||
|
|
if modified['settings']:
|
||
|
|
pelican, settings = get_instance(args)
|
||
|
|
watcher.update_watchers(settings)
|
||
|
|
|
||
|
|
if any(modified.values()):
|
||
|
|
print('\n-> Modified: {}. re-generating...'.format(
|
||
|
|
', '.join(k for k, v in modified.items() if v)))
|
||
|
|
pelican.run()
|
||
|
|
|
||
|
|
except KeyboardInterrupt:
|
||
|
|
if excqueue is not None:
|
||
|
|
excqueue.put(None)
|
||
|
|
return
|
||
|
|
raise
|
||
|
|
|
||
|
|
except Exception as e:
|
||
|
|
if (args.verbosity == logging.DEBUG):
|
||
|
|
if excqueue is not None:
|
||
|
|
excqueue.put(
|
||
|
|
traceback.format_exception_only(type(e), e)[-1])
|
||
|
|
else:
|
||
|
|
raise
|
||
|
|
logger.warning(
|
||
|
|
'Caught exception:\n"%s".', e,
|
||
|
|
exc_info=settings.get('DEBUG', False))
|
||
|
|
|
||
|
|
|
||
|
|
def listen(server, port, output, excqueue=None):
|
||
|
|
RootedHTTPServer.allow_reuse_address = True
|
||
|
|
try:
|
||
|
|
httpd = RootedHTTPServer(
|
||
|
|
output, (server, port), ComplexHTTPRequestHandler)
|
||
|
|
except OSError as e:
|
||
|
|
logging.error("Could not listen on port %s, server %s.", port, server)
|
||
|
|
if excqueue is not None:
|
||
|
|
excqueue.put(traceback.format_exception_only(type(e), e)[-1])
|
||
|
|
return
|
||
|
|
|
||
|
|
try:
|
||
|
|
print("\nServing site at: {}:{} - Tap CTRL-C to stop".format(
|
||
|
|
server, port))
|
||
|
|
httpd.serve_forever()
|
||
|
|
except Exception as e:
|
||
|
|
if excqueue is not None:
|
||
|
|
excqueue.put(traceback.format_exception_only(type(e), e)[-1])
|
||
|
|
return
|
||
|
|
|
||
|
|
except KeyboardInterrupt:
|
||
|
|
httpd.socket.close()
|
||
|
|
if excqueue is not None:
|
||
|
|
return
|
||
|
|
raise
|
||
|
|
|
||
|
|
|
||
|
|
def main(argv=None):
|
||
|
|
args = parse_arguments(argv)
|
||
|
|
logs_dedup_min_level = getattr(logging, args.logs_dedup_min_level)
|
||
|
|
init_logging(args.verbosity, args.fatal,
|
||
|
|
logs_dedup_min_level=logs_dedup_min_level)
|
||
|
|
|
||
|
|
logger.debug('Pelican version: %s', __version__)
|
||
|
|
logger.debug('Python version: %s', sys.version.split()[0])
|
||
|
|
|
||
|
|
try:
|
||
|
|
pelican, settings = get_instance(args)
|
||
|
|
|
||
|
|
if args.autoreload and args.listen:
|
||
|
|
excqueue = multiprocessing.Queue()
|
||
|
|
p1 = multiprocessing.Process(
|
||
|
|
target=autoreload,
|
||
|
|
args=(args, excqueue))
|
||
|
|
p2 = multiprocessing.Process(
|
||
|
|
target=listen,
|
||
|
|
args=(settings.get('BIND'), settings.get('PORT'),
|
||
|
|
settings.get("OUTPUT_PATH"), excqueue))
|
||
|
|
p1.start()
|
||
|
|
p2.start()
|
||
|
|
exc = excqueue.get()
|
||
|
|
p1.terminate()
|
||
|
|
p2.terminate()
|
||
|
|
if exc is not None:
|
||
|
|
logger.critical(exc)
|
||
|
|
elif args.autoreload:
|
||
|
|
autoreload(args)
|
||
|
|
elif args.listen:
|
||
|
|
listen(settings.get('BIND'), settings.get('PORT'),
|
||
|
|
settings.get("OUTPUT_PATH"))
|
||
|
|
else:
|
||
|
|
watcher = FileSystemWatcher(args.settings, Readers, settings)
|
||
|
|
watcher.check()
|
||
|
|
pelican.run()
|
||
|
|
except KeyboardInterrupt:
|
||
|
|
logger.warning('Keyboard interrupt received. Exiting.')
|
||
|
|
except Exception as e:
|
||
|
|
logger.critical('%s', e)
|
||
|
|
|
||
|
|
if args.verbosity == logging.DEBUG:
|
||
|
|
raise
|
||
|
|
else:
|
||
|
|
sys.exit(getattr(e, 'exitcode', 1))
|