forked from varia/varia.website
many many many Varia's websites, work in progress: https://many.vvvvvvaria.org
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
125 lines
3.9 KiB
125 lines
3.9 KiB
"""
|
|
Org Reader
|
|
==========
|
|
|
|
Version 1.1.
|
|
|
|
Relevant Pelican settings:
|
|
|
|
- ORG_READER_EMACS_LOCATION: Required. Location of Emacs binary.
|
|
|
|
- ORG_READER_EMACS_SETTINGS: Optional. An absolute path to an Elisp file, to
|
|
run per invocation. Useful for initializing the `package` Emacs library if
|
|
that's where your Org mode comes from, or any modifications to Org Export-
|
|
related variables.
|
|
|
|
- ORG_READER_BACKEND: Optional. A custom backend to provide to Org. Defaults
|
|
to 'html.
|
|
|
|
To provide metadata to Pelican, the following properties can be defined in
|
|
the org file's header:
|
|
|
|
#+TITLE: The Title Of This BlogPost
|
|
#+DATE: 2001-01-01
|
|
#+CATEGORY: blog-category
|
|
#+AUTHOR: My Name
|
|
#+PROPERTY: LANGUAGE en
|
|
#+PROPERTY: SUMMARY hello, this is the description
|
|
#+PROPERTY: SLUG test_slug
|
|
#+PROPERTY: MODIFIED [2015-12-29 Di]
|
|
#+PROPERTY: TAGS my, first, tags
|
|
#+PROPERTY: SAVE_AS alternative_filename.html
|
|
|
|
- The TITLE is the only mandatory header property
|
|
- Timestamps (DATE and MODIFIED) are optional and can be either a string of
|
|
%Y-%m-%d or an org timestamp
|
|
- The property names (SUMMARY, SLUG, MODIFIED, TAGS, SAVE_AS) can be either
|
|
lower-case or upper-case
|
|
- The slug is automatically the filename of the Org file, if not explicitly
|
|
specified
|
|
- It is not possible to pass an empty property to Pelican. For this plugin,
|
|
it makes no difference if a property is present in the Org file and left
|
|
empty, or if it is not defined at all.
|
|
|
|
"""
|
|
import os
|
|
import json
|
|
import logging
|
|
import subprocess
|
|
from pelican import readers
|
|
from pelican import signals
|
|
|
|
|
|
ELISP = os.path.join(os.path.dirname(__file__), 'org_reader.el')
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class OrgReader(readers.BaseReader):
|
|
enabled = True
|
|
|
|
EMACS_ARGS = ["-Q", "--batch"]
|
|
ELISP_EXEC = "(org->pelican \"{0}\" {1})"
|
|
|
|
file_extensions = ['org']
|
|
|
|
def __init__(self, settings):
|
|
super(OrgReader, self).__init__(settings)
|
|
assert 'ORG_READER_EMACS_LOCATION' in self.settings, \
|
|
"No ORG_READER_EMACS_LOCATION specified in settings"
|
|
|
|
def read(self, filename):
|
|
LOG.info("Reading Org file {0}".format(filename))
|
|
cmd = [self.settings['ORG_READER_EMACS_LOCATION']]
|
|
cmd.extend(self.EMACS_ARGS)
|
|
|
|
if 'ORG_READER_EMACS_SETTINGS' in self.settings:
|
|
cmd.append('-l')
|
|
cmd.append(self.settings['ORG_READER_EMACS_SETTINGS'])
|
|
|
|
backend = self.settings.get('ORG_READER_BACKEND', "'html")
|
|
|
|
cmd.append('-l')
|
|
cmd.append(ELISP)
|
|
|
|
cmd.append('--eval')
|
|
cmd.append(self.ELISP_EXEC.format(filename, backend))
|
|
|
|
LOG.debug("OrgReader: running command `{0}`".format(cmd))
|
|
|
|
json_result = subprocess.check_output(cmd, universal_newlines=True)
|
|
json_output = json.loads(json_result)
|
|
|
|
# get default slug from .org filename
|
|
default_slug, _ = os.path.splitext(os.path.basename(filename))
|
|
|
|
metadata = {'title': json_output['title'] or '',
|
|
'date': json_output['date'] or '',
|
|
'author': json_output['author'] or '',
|
|
'lang': json_output['language'] or '',
|
|
'category': json_output['category'] or '',
|
|
'slug': json_output['slug'] or default_slug,
|
|
'modified': json_output['modified'] or '',
|
|
'tags': json_output['tags'] or '',
|
|
'save_as': json_output['save_as'] or '',
|
|
'summary': json_output['summary'] or ''}
|
|
|
|
# remove empty strings when necessary
|
|
for key in ['save_as', 'modified', 'lang', 'summary']:
|
|
if not metadata[key]:
|
|
metadata.pop(key)
|
|
|
|
parsed = {}
|
|
for key, value in metadata.items():
|
|
parsed[key] = self.process_metadata(key, value)
|
|
|
|
content = json_output['post']
|
|
|
|
return content, parsed
|
|
|
|
|
|
def add_reader(readers):
|
|
readers.reader_classes['org'] = OrgReader
|
|
|
|
|
|
def register():
|
|
signals.readers_init.connect(add_reader)
|
|
|