# -*- coding: utf-8 -*- # ----------------------------------------------------------------------------- # Copyright (C) 2009 Tim Dumol # Copyright (C) 2010- Spyder Project Contributors # # Distributed under the terms of the Modified BSD License # (BSD 3-clause; see NOTICE.txt in the Spyder root directory for details). # ----------------------------------------------------------------------------- """ Process docstrings with Sphinx. **AUTHORS**: * Tim Joseph Dumol (2009-09-29): Initial version. * The Spyder Project Contributors: Several changes to make it work with Spyder. Originally based on sagenb/misc/sphinxify.py from the `Sage Notebook project `_, part of the `SageMath `_ system. """ # Standard library imports import codecs import os import os.path as osp import pathlib import shutil import sys from tempfile import mkdtemp from xml.sax.saxutils import escape # Third party imports from docutils.utils import SystemMessage as SystemMessage from jinja2 import Environment, FileSystemLoader import sphinx from sphinx.application import Sphinx # Local imports from spyder.config.base import (_, get_module_data_path, get_module_source_path) from spyder.utils import encoding #----------------------------------------------------------------------------- # Globals and constants #----------------------------------------------------------------------------- # Note: we do not use __file__ because it won't be working in the stand-alone # version of Spyder (i.e. the py2exe or cx_Freeze build) CONFDIR_PATH = get_module_source_path('spyder.plugins.help.utils') CSS_PATH = osp.join(CONFDIR_PATH, 'static', 'css') DARK_CSS_PATH = osp.join(CONFDIR_PATH, 'static', 'dark_css') BASE_CSS_PATH = osp.join(CONFDIR_PATH, 'static', 'base_css') JS_PATH = osp.join(CONFDIR_PATH, 'js') # To let Debian packagers redefine the MathJax and JQuery locations so they can # use their own packages for them. See spyder-ide/spyder#1230, comment #7. MATHJAX_PATH = get_module_data_path('spyder', relpath=osp.join('utils', 'help', JS_PATH, 'mathjax'), attr_name='MATHJAXPATH') JQUERY_PATH = get_module_data_path('spyder', relpath=osp.join('utils', 'help', JS_PATH), attr_name='JQUERYPATH') #----------------------------------------------------------------------------- # Utility functions #----------------------------------------------------------------------------- def is_sphinx_markup(docstring): """Returns whether a string contains Sphinx-style ReST markup.""" # this could be made much more clever return ("`" in docstring or "::" in docstring) def warning(message, css_path=CSS_PATH): """Print a warning message on the rich text view""" env = Environment() env.loader = FileSystemLoader(osp.join(CONFDIR_PATH, 'templates')) warning = env.get_template("warning.html") return warning.render(css_path=css_path, text=message) def usage(title, message, tutorial_message, tutorial, css_path=CSS_PATH): """Print a usage message on the rich text view""" env = Environment() env.loader = FileSystemLoader(osp.join(CONFDIR_PATH, 'templates')) usage = env.get_template("usage.html") return usage.render(css_path=css_path, title=title, intro_message=message, tutorial_message=tutorial_message, tutorial=tutorial) def loading(message, loading_img, css_path=CSS_PATH): """Print loading message on the rich text view.""" env = Environment() env.loader = FileSystemLoader(osp.join(CONFDIR_PATH, 'templates')) loading = env.get_template("loading.html") return loading.render( css_path=css_path, loading_img=loading_img, message=message) def generate_context(name='', argspec='', note='', math=False, collapse=False, img_path='', css_path=CSS_PATH): """ Generate the html_context dictionary for our Sphinx conf file. This is a set of variables to be passed to the Jinja template engine and that are used to control how the webpage is rendered in connection with Sphinx Parameters ---------- name : str Object's name. note : str A note describing what type has the function or method being introspected argspec : str Argspec of the the function or method being introspected math : bool Turn on/off Latex rendering on the OI. If False, Latex will be shown in plain text. collapse : bool Collapse sections img_path : str Path for images relative to the file containing the docstring Returns ------- A dict of strings to be used by Jinja to generate the webpage """ if img_path and os.name == 'nt': img_path = img_path.replace('\\', '/') context = \ { # Arg dependent variables 'math_on': 'true' if math else '', 'name': name, 'argspec': argspec, 'note': note, 'collapse': collapse, 'img_path': img_path, # Static variables 'base_css_path': BASE_CSS_PATH, 'css_path': css_path, 'js_path': JS_PATH, 'jquery_path': JQUERY_PATH, 'mathjax_path': MATHJAX_PATH, 'right_sphinx_version': '' if sphinx.__version__ < "1.1" else 'true', 'sphinx_version_2': '' if sphinx.__version__ < "2.0" else 'true', 'platform': sys.platform } return context def sphinxify(docstring, context, buildername='html'): """ Runs Sphinx on a docstring and outputs the processed documentation. Parameters ---------- docstring : str a ReST-formatted docstring context : dict Variables to be passed to the layout template to control how its rendered (through the Sphinx variable *html_context*). buildername: str It can be either `html` or `text`. Returns ------- An Sphinx-processed string, in either HTML or plain text format, depending on the value of `buildername` """ confdir = osp.join(get_module_source_path('spyder.plugins.help.utils')) srcdir = mkdtemp() srcdir = encoding.to_unicode_from_fs(srcdir) destdir = osp.join(srcdir, '_build') temp_confdir_needed = False if os.name == 'nt': # Check if confdir and srcdir are in the same drive # See spyder-ide/spyder#11762 drive_confdir = pathlib.Path(confdir).parts[0] drive_srcdir = pathlib.Path(srcdir).parts[0] temp_confdir_needed = drive_confdir != drive_srcdir if temp_confdir_needed: # TODO: This may be inefficient. Find a faster way to do it. confdir = mkdtemp() confdir = encoding.to_unicode_from_fs(confdir) generate_configuration(confdir) rst_name = osp.join(srcdir, 'docstring.rst') if buildername == 'html': suffix = '.html' else: suffix = '.txt' output_name = osp.join(destdir, 'docstring' + suffix) # This is needed so users can type \\ on latex eqnarray envs inside raw # docstrings if context['right_sphinx_version'] and context['math_on']: docstring = docstring.replace('\\\\', '\\\\\\\\') # Needed to prevent MathJax render the '\*' red. # Also the '\*' seems to actually by a simple '*' # See spyder-ide/spyder#9785 docstring = docstring.replace("\\*", "*") # Add a class to several characters on the argspec. This way we can # highlight them using css, in a similar way to what IPython does. # NOTE: Before doing this, we escape common html chars so that they # don't interfere with the rest of html present in the page argspec = escape(context['argspec']) for char in ['=', ',', '(', ')', '*', '**']: argspec = argspec.replace(char, '' + char + '') context['argspec'] = argspec doc_file = codecs.open(rst_name, 'w', encoding='utf-8') doc_file.write(docstring) doc_file.close() confoverrides = {'html_context': context} doctreedir = osp.join(srcdir, 'doctrees') sphinx_app = Sphinx(srcdir, confdir, destdir, doctreedir, buildername, confoverrides, status=None, warning=None, freshenv=True, warningiserror=False, tags=None) try: sphinx_app.build(None, [rst_name]) except SystemMessage: output = _("It was not possible to generate rich text help for this " "object.
" "Please see it in plain text.") return warning(output) # TODO: Investigate if this is necessary/important for us if osp.exists(output_name): output = codecs.open(output_name, 'r', encoding='utf-8').read() output = output.replace('
', '
')
    else:
        output = _("It was not possible to generate rich text help for this "
                    "object.
"
                    "Please see it in plain text.")
        return warning(output)

    if temp_confdir_needed:
        shutil.rmtree(confdir, ignore_errors=True)
    shutil.rmtree(srcdir, ignore_errors=True)

    return output


def generate_configuration(directory):
    """
    Generates a Sphinx configuration in `directory`.

    Parameters
    ----------
    directory : str
        Base directory to use
    """

    # conf.py file for Sphinx
    conf = osp.join(get_module_source_path('spyder.plugins.help.utils'),
                    'conf.py')

    # Docstring layout page (in Jinja):
    layout = osp.join(osp.join(CONFDIR_PATH, 'templates'), 'layout.html')

    os.makedirs(osp.join(directory, 'templates'))
    os.makedirs(osp.join(directory, 'static'))
    shutil.copy(conf, directory)
    shutil.copy(layout, osp.join(directory, 'templates'))
    open(osp.join(directory, '__init__.py'), 'w').write('')
    open(osp.join(directory, 'static', 'empty'), 'w').write('')