823 lines
27 KiB
Python
823 lines
27 KiB
Python
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"""
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A directive for including a Matplotlib plot in a Sphinx document
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================================================================
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By default, in HTML output, `plot` will include a .png file with a link to a
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high-res .png and .pdf. In LaTeX output, it will include a .pdf.
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The source code for the plot may be included in one of three ways:
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1. **A path to a source file** as the argument to the directive::
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.. plot:: path/to/plot.py
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When a path to a source file is given, the content of the
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directive may optionally contain a caption for the plot::
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.. plot:: path/to/plot.py
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The plot's caption.
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Additionally, one may specify the name of a function to call (with
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no arguments) immediately after importing the module::
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.. plot:: path/to/plot.py plot_function1
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2. Included as **inline content** to the directive::
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.. plot::
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import matplotlib.pyplot as plt
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import matplotlib.image as mpimg
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import numpy as np
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img = mpimg.imread('_static/stinkbug.png')
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imgplot = plt.imshow(img)
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3. Using **doctest** syntax::
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.. plot::
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A plotting example:
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>>> import matplotlib.pyplot as plt
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>>> plt.plot([1, 2, 3], [4, 5, 6])
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Options
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-------
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The ``plot`` directive supports the following options:
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format : {'python', 'doctest'}
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The format of the input.
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include-source : bool
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Whether to display the source code. The default can be changed
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using the `plot_include_source` variable in :file:`conf.py`.
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encoding : str
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If this source file is in a non-UTF8 or non-ASCII encoding, the
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encoding must be specified using the ``:encoding:`` option. The
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encoding will not be inferred using the ``-*- coding -*-`` metacomment.
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context : bool or str
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If provided, the code will be run in the context of all previous plot
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directives for which the ``:context:`` option was specified. This only
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applies to inline code plot directives, not those run from files. If
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the ``:context: reset`` option is specified, the context is reset
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for this and future plots, and previous figures are closed prior to
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running the code. ``:context: close-figs`` keeps the context but closes
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previous figures before running the code.
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nofigs : bool
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If specified, the code block will be run, but no figures will be
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inserted. This is usually useful with the ``:context:`` option.
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caption : str
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If specified, the option's argument will be used as a caption for the
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figure. This overwrites the caption given in the content, when the plot
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is generated from a file.
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Additionally, this directive supports all of the options of the `image`
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directive, except for *target* (since plot will add its own target). These
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include *alt*, *height*, *width*, *scale*, *align* and *class*.
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Configuration options
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---------------------
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The plot directive has the following configuration options:
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plot_include_source
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Default value for the include-source option
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plot_html_show_source_link
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Whether to show a link to the source in HTML.
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plot_pre_code
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Code that should be executed before each plot. If not specified or None
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it will default to a string containing::
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import numpy as np
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from matplotlib import pyplot as plt
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plot_basedir
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Base directory, to which ``plot::`` file names are relative
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to. (If None or empty, file names are relative to the
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directory where the file containing the directive is.)
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plot_formats
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File formats to generate. List of tuples or strings::
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[(suffix, dpi), suffix, ...]
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that determine the file format and the DPI. For entries whose
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DPI was omitted, sensible defaults are chosen. When passing from
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the command line through sphinx_build the list should be passed as
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suffix:dpi,suffix:dpi, ...
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plot_html_show_formats
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Whether to show links to the files in HTML.
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plot_rcparams
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A dictionary containing any non-standard rcParams that should
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be applied before each plot.
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plot_apply_rcparams
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By default, rcParams are applied when ``:context:`` option is not used
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in a plot directive. This configuration option overrides this behavior
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and applies rcParams before each plot.
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plot_working_directory
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By default, the working directory will be changed to the directory of
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the example, so the code can get at its data files, if any. Also its
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path will be added to `sys.path` so it can import any helper modules
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sitting beside it. This configuration option can be used to specify
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a central directory (also added to `sys.path`) where data files and
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helper modules for all code are located.
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plot_template
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Provide a customized template for preparing restructured text.
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"""
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import contextlib
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from io import StringIO
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import itertools
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import os
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from os.path import relpath
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from pathlib import Path
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import re
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import shutil
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import sys
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import textwrap
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import traceback
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from docutils.parsers.rst import directives, Directive
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from docutils.parsers.rst.directives.images import Image
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import jinja2 # Sphinx dependency.
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import matplotlib
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from matplotlib.backend_bases import FigureManagerBase
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import matplotlib.pyplot as plt
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from matplotlib import _api, _pylab_helpers, cbook
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matplotlib.use("agg")
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align = _api.deprecated(
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"3.4", alternative="docutils.parsers.rst.directives.images.Image.align")(
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Image.align)
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__version__ = 2
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# -----------------------------------------------------------------------------
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# Registration hook
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# -----------------------------------------------------------------------------
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def _option_boolean(arg):
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if not arg or not arg.strip():
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# no argument given, assume used as a flag
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return True
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elif arg.strip().lower() in ('no', '0', 'false'):
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return False
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elif arg.strip().lower() in ('yes', '1', 'true'):
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return True
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else:
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raise ValueError('"%s" unknown boolean' % arg)
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def _option_context(arg):
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if arg in [None, 'reset', 'close-figs']:
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return arg
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raise ValueError("Argument should be None or 'reset' or 'close-figs'")
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def _option_format(arg):
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return directives.choice(arg, ('python', 'doctest'))
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def mark_plot_labels(app, document):
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"""
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To make plots referenceable, we need to move the reference from the
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"htmlonly" (or "latexonly") node to the actual figure node itself.
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"""
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for name, explicit in document.nametypes.items():
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if not explicit:
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continue
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labelid = document.nameids[name]
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if labelid is None:
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continue
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node = document.ids[labelid]
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if node.tagname in ('html_only', 'latex_only'):
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for n in node:
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if n.tagname == 'figure':
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sectname = name
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for c in n:
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if c.tagname == 'caption':
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sectname = c.astext()
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break
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node['ids'].remove(labelid)
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node['names'].remove(name)
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n['ids'].append(labelid)
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n['names'].append(name)
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document.settings.env.labels[name] = \
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document.settings.env.docname, labelid, sectname
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break
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class PlotDirective(Directive):
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"""The ``.. plot::`` directive, as documented in the module's docstring."""
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has_content = True
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required_arguments = 0
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optional_arguments = 2
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final_argument_whitespace = False
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option_spec = {
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'alt': directives.unchanged,
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'height': directives.length_or_unitless,
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'width': directives.length_or_percentage_or_unitless,
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'scale': directives.nonnegative_int,
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'align': Image.align,
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'class': directives.class_option,
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'include-source': _option_boolean,
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'format': _option_format,
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'context': _option_context,
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'nofigs': directives.flag,
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'encoding': directives.encoding,
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'caption': directives.unchanged,
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}
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def run(self):
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"""Run the plot directive."""
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try:
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return run(self.arguments, self.content, self.options,
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self.state_machine, self.state, self.lineno)
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except Exception as e:
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raise self.error(str(e))
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def _copy_css_file(app, exc):
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if exc is None and app.builder.format == 'html':
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src = cbook._get_data_path('plot_directive/plot_directive.css')
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dst = app.outdir / Path('_static')
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shutil.copy(src, dst)
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def setup(app):
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setup.app = app
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setup.config = app.config
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setup.confdir = app.confdir
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app.add_directive('plot', PlotDirective)
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app.add_config_value('plot_pre_code', None, True)
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app.add_config_value('plot_include_source', False, True)
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app.add_config_value('plot_html_show_source_link', True, True)
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app.add_config_value('plot_formats', ['png', 'hires.png', 'pdf'], True)
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app.add_config_value('plot_basedir', None, True)
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app.add_config_value('plot_html_show_formats', True, True)
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app.add_config_value('plot_rcparams', {}, True)
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app.add_config_value('plot_apply_rcparams', False, True)
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app.add_config_value('plot_working_directory', None, True)
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app.add_config_value('plot_template', None, True)
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app.connect('doctree-read', mark_plot_labels)
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app.add_css_file('plot_directive.css')
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app.connect('build-finished', _copy_css_file)
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metadata = {'parallel_read_safe': True, 'parallel_write_safe': True,
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'version': matplotlib.__version__}
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return metadata
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# -----------------------------------------------------------------------------
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# Doctest handling
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# -----------------------------------------------------------------------------
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def contains_doctest(text):
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try:
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# check if it's valid Python as-is
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compile(text, '<string>', 'exec')
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return False
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except SyntaxError:
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pass
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r = re.compile(r'^\s*>>>', re.M)
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m = r.search(text)
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return bool(m)
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def unescape_doctest(text):
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"""
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Extract code from a piece of text, which contains either Python code
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or doctests.
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"""
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if not contains_doctest(text):
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return text
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code = ""
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for line in text.split("\n"):
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m = re.match(r'^\s*(>>>|\.\.\.) (.*)$', line)
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if m:
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code += m.group(2) + "\n"
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elif line.strip():
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code += "# " + line.strip() + "\n"
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else:
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code += "\n"
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return code
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def split_code_at_show(text):
|
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"""Split code at plt.show()."""
|
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parts = []
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is_doctest = contains_doctest(text)
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part = []
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for line in text.split("\n"):
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if (not is_doctest and line.strip() == 'plt.show()') or \
|
||
|
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(is_doctest and line.strip() == '>>> plt.show()'):
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part.append(line)
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parts.append("\n".join(part))
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part = []
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else:
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part.append(line)
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if "\n".join(part).strip():
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parts.append("\n".join(part))
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return parts
|
||
|
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|
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|
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|
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# -----------------------------------------------------------------------------
|
||
|
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# Template
|
||
|
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# -----------------------------------------------------------------------------
|
||
|
|
|
||
|
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TEMPLATE = """
|
||
|
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{{ source_code }}
|
||
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.. only:: html
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||
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|
|
||
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{% if source_link or (html_show_formats and not multi_image) %}
|
||
|
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(
|
||
|
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{%- if source_link -%}
|
||
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`Source code <{{ source_link }}>`__
|
||
|
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{%- endif -%}
|
||
|
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{%- if html_show_formats and not multi_image -%}
|
||
|
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{%- for img in images -%}
|
||
|
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{%- for fmt in img.formats -%}
|
||
|
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{%- if source_link or not loop.first -%}, {% endif -%}
|
||
|
|
`{{ fmt }} <{{ dest_dir }}/{{ img.basename }}.{{ fmt }}>`__
|
||
|
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{%- endfor -%}
|
||
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{%- endfor -%}
|
||
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{%- endif -%}
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||
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)
|
||
|
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{% endif %}
|
||
|
|
|
||
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{% for img in images %}
|
||
|
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.. figure:: {{ build_dir }}/{{ img.basename }}.{{ default_fmt }}
|
||
|
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{% for option in options -%}
|
||
|
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{{ option }}
|
||
|
|
{% endfor %}
|
||
|
|
|
||
|
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{% if html_show_formats and multi_image -%}
|
||
|
|
(
|
||
|
|
{%- for fmt in img.formats -%}
|
||
|
|
{%- if not loop.first -%}, {% endif -%}
|
||
|
|
`{{ fmt }} <{{ dest_dir }}/{{ img.basename }}.{{ fmt }}>`__
|
||
|
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{%- endfor -%}
|
||
|
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)
|
||
|
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{%- endif -%}
|
||
|
|
|
||
|
|
{{ caption }} {# appropriate leading whitespace added beforehand #}
|
||
|
|
{% endfor %}
|
||
|
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|
||
|
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.. only:: not html
|
||
|
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|
||
|
|
{% for img in images %}
|
||
|
|
.. figure:: {{ build_dir }}/{{ img.basename }}.*
|
||
|
|
{% for option in options -%}
|
||
|
|
{{ option }}
|
||
|
|
{% endfor -%}
|
||
|
|
|
||
|
|
{{ caption }} {# appropriate leading whitespace added beforehand #}
|
||
|
|
{% endfor %}
|
||
|
|
|
||
|
|
"""
|
||
|
|
|
||
|
|
exception_template = """
|
||
|
|
.. only:: html
|
||
|
|
|
||
|
|
[`source code <%(linkdir)s/%(basename)s.py>`__]
|
||
|
|
|
||
|
|
Exception occurred rendering plot.
|
||
|
|
|
||
|
|
"""
|
||
|
|
|
||
|
|
# the context of the plot for all directives specified with the
|
||
|
|
# :context: option
|
||
|
|
plot_context = dict()
|
||
|
|
|
||
|
|
|
||
|
|
class ImageFile:
|
||
|
|
def __init__(self, basename, dirname):
|
||
|
|
self.basename = basename
|
||
|
|
self.dirname = dirname
|
||
|
|
self.formats = []
|
||
|
|
|
||
|
|
def filename(self, format):
|
||
|
|
return os.path.join(self.dirname, "%s.%s" % (self.basename, format))
|
||
|
|
|
||
|
|
def filenames(self):
|
||
|
|
return [self.filename(fmt) for fmt in self.formats]
|
||
|
|
|
||
|
|
|
||
|
|
def out_of_date(original, derived):
|
||
|
|
"""
|
||
|
|
Return whether *derived* is out-of-date relative to *original*, both of
|
||
|
|
which are full file paths.
|
||
|
|
"""
|
||
|
|
return (not os.path.exists(derived) or
|
||
|
|
(os.path.exists(original) and
|
||
|
|
os.stat(derived).st_mtime < os.stat(original).st_mtime))
|
||
|
|
|
||
|
|
|
||
|
|
class PlotError(RuntimeError):
|
||
|
|
pass
|
||
|
|
|
||
|
|
|
||
|
|
def run_code(code, code_path, ns=None, function_name=None):
|
||
|
|
"""
|
||
|
|
Import a Python module from a path, and run the function given by
|
||
|
|
name, if function_name is not None.
|
||
|
|
"""
|
||
|
|
|
||
|
|
# Change the working directory to the directory of the example, so
|
||
|
|
# it can get at its data files, if any. Add its path to sys.path
|
||
|
|
# so it can import any helper modules sitting beside it.
|
||
|
|
pwd = os.getcwd()
|
||
|
|
if setup.config.plot_working_directory is not None:
|
||
|
|
try:
|
||
|
|
os.chdir(setup.config.plot_working_directory)
|
||
|
|
except OSError as err:
|
||
|
|
raise OSError(str(err) + '\n`plot_working_directory` option in'
|
||
|
|
'Sphinx configuration file must be a valid '
|
||
|
|
'directory path') from err
|
||
|
|
except TypeError as err:
|
||
|
|
raise TypeError(str(err) + '\n`plot_working_directory` option in '
|
||
|
|
'Sphinx configuration file must be a string or '
|
||
|
|
'None') from err
|
||
|
|
elif code_path is not None:
|
||
|
|
dirname = os.path.abspath(os.path.dirname(code_path))
|
||
|
|
os.chdir(dirname)
|
||
|
|
|
||
|
|
with cbook._setattr_cm(
|
||
|
|
sys, argv=[code_path], path=[os.getcwd(), *sys.path]), \
|
||
|
|
contextlib.redirect_stdout(StringIO()):
|
||
|
|
try:
|
||
|
|
code = unescape_doctest(code)
|
||
|
|
if ns is None:
|
||
|
|
ns = {}
|
||
|
|
if not ns:
|
||
|
|
if setup.config.plot_pre_code is None:
|
||
|
|
exec('import numpy as np\n'
|
||
|
|
'from matplotlib import pyplot as plt\n', ns)
|
||
|
|
else:
|
||
|
|
exec(str(setup.config.plot_pre_code), ns)
|
||
|
|
if "__main__" in code:
|
||
|
|
ns['__name__'] = '__main__'
|
||
|
|
|
||
|
|
# Patch out non-interactive show() to avoid triggering a warning.
|
||
|
|
with cbook._setattr_cm(FigureManagerBase, show=lambda self: None):
|
||
|
|
exec(code, ns)
|
||
|
|
if function_name is not None:
|
||
|
|
exec(function_name + "()", ns)
|
||
|
|
|
||
|
|
except (Exception, SystemExit) as err:
|
||
|
|
raise PlotError(traceback.format_exc()) from err
|
||
|
|
finally:
|
||
|
|
os.chdir(pwd)
|
||
|
|
return ns
|
||
|
|
|
||
|
|
|
||
|
|
def clear_state(plot_rcparams, close=True):
|
||
|
|
if close:
|
||
|
|
plt.close('all')
|
||
|
|
matplotlib.rc_file_defaults()
|
||
|
|
matplotlib.rcParams.update(plot_rcparams)
|
||
|
|
|
||
|
|
|
||
|
|
def get_plot_formats(config):
|
||
|
|
default_dpi = {'png': 80, 'hires.png': 200, 'pdf': 200}
|
||
|
|
formats = []
|
||
|
|
plot_formats = config.plot_formats
|
||
|
|
for fmt in plot_formats:
|
||
|
|
if isinstance(fmt, str):
|
||
|
|
if ':' in fmt:
|
||
|
|
suffix, dpi = fmt.split(':')
|
||
|
|
formats.append((str(suffix), int(dpi)))
|
||
|
|
else:
|
||
|
|
formats.append((fmt, default_dpi.get(fmt, 80)))
|
||
|
|
elif isinstance(fmt, (tuple, list)) and len(fmt) == 2:
|
||
|
|
formats.append((str(fmt[0]), int(fmt[1])))
|
||
|
|
else:
|
||
|
|
raise PlotError('invalid image format "%r" in plot_formats' % fmt)
|
||
|
|
return formats
|
||
|
|
|
||
|
|
|
||
|
|
def render_figures(code, code_path, output_dir, output_base, context,
|
||
|
|
function_name, config, context_reset=False,
|
||
|
|
close_figs=False):
|
||
|
|
"""
|
||
|
|
Run a pyplot script and save the images in *output_dir*.
|
||
|
|
|
||
|
|
Save the images under *output_dir* with file names derived from
|
||
|
|
*output_base*
|
||
|
|
"""
|
||
|
|
formats = get_plot_formats(config)
|
||
|
|
|
||
|
|
# Try to determine if all images already exist
|
||
|
|
|
||
|
|
code_pieces = split_code_at_show(code)
|
||
|
|
|
||
|
|
# Look for single-figure output files first
|
||
|
|
all_exists = True
|
||
|
|
img = ImageFile(output_base, output_dir)
|
||
|
|
for format, dpi in formats:
|
||
|
|
if out_of_date(code_path, img.filename(format)):
|
||
|
|
all_exists = False
|
||
|
|
break
|
||
|
|
img.formats.append(format)
|
||
|
|
|
||
|
|
if all_exists:
|
||
|
|
return [(code, [img])]
|
||
|
|
|
||
|
|
# Then look for multi-figure output files
|
||
|
|
results = []
|
||
|
|
all_exists = True
|
||
|
|
for i, code_piece in enumerate(code_pieces):
|
||
|
|
images = []
|
||
|
|
for j in itertools.count():
|
||
|
|
if len(code_pieces) > 1:
|
||
|
|
img = ImageFile('%s_%02d_%02d' % (output_base, i, j),
|
||
|
|
output_dir)
|
||
|
|
else:
|
||
|
|
img = ImageFile('%s_%02d' % (output_base, j), output_dir)
|
||
|
|
for fmt, dpi in formats:
|
||
|
|
if out_of_date(code_path, img.filename(fmt)):
|
||
|
|
all_exists = False
|
||
|
|
break
|
||
|
|
img.formats.append(fmt)
|
||
|
|
|
||
|
|
# assume that if we have one, we have them all
|
||
|
|
if not all_exists:
|
||
|
|
all_exists = (j > 0)
|
||
|
|
break
|
||
|
|
images.append(img)
|
||
|
|
if not all_exists:
|
||
|
|
break
|
||
|
|
results.append((code_piece, images))
|
||
|
|
|
||
|
|
if all_exists:
|
||
|
|
return results
|
||
|
|
|
||
|
|
# We didn't find the files, so build them
|
||
|
|
|
||
|
|
results = []
|
||
|
|
if context:
|
||
|
|
ns = plot_context
|
||
|
|
else:
|
||
|
|
ns = {}
|
||
|
|
|
||
|
|
if context_reset:
|
||
|
|
clear_state(config.plot_rcparams)
|
||
|
|
plot_context.clear()
|
||
|
|
|
||
|
|
close_figs = not context or close_figs
|
||
|
|
|
||
|
|
for i, code_piece in enumerate(code_pieces):
|
||
|
|
|
||
|
|
if not context or config.plot_apply_rcparams:
|
||
|
|
clear_state(config.plot_rcparams, close_figs)
|
||
|
|
elif close_figs:
|
||
|
|
plt.close('all')
|
||
|
|
|
||
|
|
run_code(code_piece, code_path, ns, function_name)
|
||
|
|
|
||
|
|
images = []
|
||
|
|
fig_managers = _pylab_helpers.Gcf.get_all_fig_managers()
|
||
|
|
for j, figman in enumerate(fig_managers):
|
||
|
|
if len(fig_managers) == 1 and len(code_pieces) == 1:
|
||
|
|
img = ImageFile(output_base, output_dir)
|
||
|
|
elif len(code_pieces) == 1:
|
||
|
|
img = ImageFile("%s_%02d" % (output_base, j), output_dir)
|
||
|
|
else:
|
||
|
|
img = ImageFile("%s_%02d_%02d" % (output_base, i, j),
|
||
|
|
output_dir)
|
||
|
|
images.append(img)
|
||
|
|
for fmt, dpi in formats:
|
||
|
|
try:
|
||
|
|
figman.canvas.figure.savefig(img.filename(fmt), dpi=dpi)
|
||
|
|
except Exception as err:
|
||
|
|
raise PlotError(traceback.format_exc()) from err
|
||
|
|
img.formats.append(fmt)
|
||
|
|
|
||
|
|
results.append((code_piece, images))
|
||
|
|
|
||
|
|
if not context or config.plot_apply_rcparams:
|
||
|
|
clear_state(config.plot_rcparams, close=not context)
|
||
|
|
|
||
|
|
return results
|
||
|
|
|
||
|
|
|
||
|
|
def run(arguments, content, options, state_machine, state, lineno):
|
||
|
|
document = state_machine.document
|
||
|
|
config = document.settings.env.config
|
||
|
|
nofigs = 'nofigs' in options
|
||
|
|
|
||
|
|
formats = get_plot_formats(config)
|
||
|
|
default_fmt = formats[0][0]
|
||
|
|
|
||
|
|
options.setdefault('include-source', config.plot_include_source)
|
||
|
|
if 'class' in options:
|
||
|
|
# classes are parsed into a list of string, and output by simply
|
||
|
|
# printing the list, abusing the fact that RST guarantees to strip
|
||
|
|
# non-conforming characters
|
||
|
|
options['class'] = ['plot-directive'] + options['class']
|
||
|
|
else:
|
||
|
|
options.setdefault('class', ['plot-directive'])
|
||
|
|
keep_context = 'context' in options
|
||
|
|
context_opt = None if not keep_context else options['context']
|
||
|
|
|
||
|
|
rst_file = document.attributes['source']
|
||
|
|
rst_dir = os.path.dirname(rst_file)
|
||
|
|
|
||
|
|
if len(arguments):
|
||
|
|
if not config.plot_basedir:
|
||
|
|
source_file_name = os.path.join(setup.app.builder.srcdir,
|
||
|
|
directives.uri(arguments[0]))
|
||
|
|
else:
|
||
|
|
source_file_name = os.path.join(setup.confdir, config.plot_basedir,
|
||
|
|
directives.uri(arguments[0]))
|
||
|
|
|
||
|
|
# If there is content, it will be passed as a caption.
|
||
|
|
caption = '\n'.join(content)
|
||
|
|
|
||
|
|
# Enforce unambiguous use of captions.
|
||
|
|
if "caption" in options:
|
||
|
|
if caption:
|
||
|
|
raise ValueError(
|
||
|
|
'Caption specified in both content and options.'
|
||
|
|
' Please remove ambiguity.'
|
||
|
|
)
|
||
|
|
# Use caption option
|
||
|
|
caption = options["caption"]
|
||
|
|
|
||
|
|
# If the optional function name is provided, use it
|
||
|
|
if len(arguments) == 2:
|
||
|
|
function_name = arguments[1]
|
||
|
|
else:
|
||
|
|
function_name = None
|
||
|
|
|
||
|
|
code = Path(source_file_name).read_text(encoding='utf-8')
|
||
|
|
output_base = os.path.basename(source_file_name)
|
||
|
|
else:
|
||
|
|
source_file_name = rst_file
|
||
|
|
code = textwrap.dedent("\n".join(map(str, content)))
|
||
|
|
counter = document.attributes.get('_plot_counter', 0) + 1
|
||
|
|
document.attributes['_plot_counter'] = counter
|
||
|
|
base, ext = os.path.splitext(os.path.basename(source_file_name))
|
||
|
|
output_base = '%s-%d.py' % (base, counter)
|
||
|
|
function_name = None
|
||
|
|
caption = options.get('caption', '')
|
||
|
|
|
||
|
|
base, source_ext = os.path.splitext(output_base)
|
||
|
|
if source_ext in ('.py', '.rst', '.txt'):
|
||
|
|
output_base = base
|
||
|
|
else:
|
||
|
|
source_ext = ''
|
||
|
|
|
||
|
|
# ensure that LaTeX includegraphics doesn't choke in foo.bar.pdf filenames
|
||
|
|
output_base = output_base.replace('.', '-')
|
||
|
|
|
||
|
|
# is it in doctest format?
|
||
|
|
is_doctest = contains_doctest(code)
|
||
|
|
if 'format' in options:
|
||
|
|
if options['format'] == 'python':
|
||
|
|
is_doctest = False
|
||
|
|
else:
|
||
|
|
is_doctest = True
|
||
|
|
|
||
|
|
# determine output directory name fragment
|
||
|
|
source_rel_name = relpath(source_file_name, setup.confdir)
|
||
|
|
source_rel_dir = os.path.dirname(source_rel_name)
|
||
|
|
while source_rel_dir.startswith(os.path.sep):
|
||
|
|
source_rel_dir = source_rel_dir[1:]
|
||
|
|
|
||
|
|
# build_dir: where to place output files (temporarily)
|
||
|
|
build_dir = os.path.join(os.path.dirname(setup.app.doctreedir),
|
||
|
|
'plot_directive',
|
||
|
|
source_rel_dir)
|
||
|
|
# get rid of .. in paths, also changes pathsep
|
||
|
|
# see note in Python docs for warning about symbolic links on Windows.
|
||
|
|
# need to compare source and dest paths at end
|
||
|
|
build_dir = os.path.normpath(build_dir)
|
||
|
|
|
||
|
|
if not os.path.exists(build_dir):
|
||
|
|
os.makedirs(build_dir)
|
||
|
|
|
||
|
|
# output_dir: final location in the builder's directory
|
||
|
|
dest_dir = os.path.abspath(os.path.join(setup.app.builder.outdir,
|
||
|
|
source_rel_dir))
|
||
|
|
if not os.path.exists(dest_dir):
|
||
|
|
os.makedirs(dest_dir) # no problem here for me, but just use built-ins
|
||
|
|
|
||
|
|
# how to link to files from the RST file
|
||
|
|
dest_dir_link = os.path.join(relpath(setup.confdir, rst_dir),
|
||
|
|
source_rel_dir).replace(os.path.sep, '/')
|
||
|
|
try:
|
||
|
|
build_dir_link = relpath(build_dir, rst_dir).replace(os.path.sep, '/')
|
||
|
|
except ValueError:
|
||
|
|
# on Windows, relpath raises ValueError when path and start are on
|
||
|
|
# different mounts/drives
|
||
|
|
build_dir_link = build_dir
|
||
|
|
source_link = dest_dir_link + '/' + output_base + source_ext
|
||
|
|
|
||
|
|
# make figures
|
||
|
|
try:
|
||
|
|
results = render_figures(code,
|
||
|
|
source_file_name,
|
||
|
|
build_dir,
|
||
|
|
output_base,
|
||
|
|
keep_context,
|
||
|
|
function_name,
|
||
|
|
config,
|
||
|
|
context_reset=context_opt == 'reset',
|
||
|
|
close_figs=context_opt == 'close-figs')
|
||
|
|
errors = []
|
||
|
|
except PlotError as err:
|
||
|
|
reporter = state.memo.reporter
|
||
|
|
sm = reporter.system_message(
|
||
|
|
2, "Exception occurred in plotting {}\n from {}:\n{}".format(
|
||
|
|
output_base, source_file_name, err),
|
||
|
|
line=lineno)
|
||
|
|
results = [(code, [])]
|
||
|
|
errors = [sm]
|
||
|
|
|
||
|
|
# Properly indent the caption
|
||
|
|
caption = '\n' + '\n'.join(' ' + line.strip()
|
||
|
|
for line in caption.split('\n'))
|
||
|
|
|
||
|
|
# generate output restructuredtext
|
||
|
|
total_lines = []
|
||
|
|
for j, (code_piece, images) in enumerate(results):
|
||
|
|
if options['include-source']:
|
||
|
|
if is_doctest:
|
||
|
|
lines = ['', *code_piece.splitlines()]
|
||
|
|
else:
|
||
|
|
lines = ['.. code-block:: python', '',
|
||
|
|
*textwrap.indent(code_piece, ' ').splitlines()]
|
||
|
|
source_code = "\n".join(lines)
|
||
|
|
else:
|
||
|
|
source_code = ""
|
||
|
|
|
||
|
|
if nofigs:
|
||
|
|
images = []
|
||
|
|
|
||
|
|
opts = [
|
||
|
|
':%s: %s' % (key, val) for key, val in options.items()
|
||
|
|
if key in ('alt', 'height', 'width', 'scale', 'align', 'class')]
|
||
|
|
|
||
|
|
# Not-None src_link signals the need for a source link in the generated
|
||
|
|
# html
|
||
|
|
if j == 0 and config.plot_html_show_source_link:
|
||
|
|
src_link = source_link
|
||
|
|
else:
|
||
|
|
src_link = None
|
||
|
|
|
||
|
|
result = jinja2.Template(config.plot_template or TEMPLATE).render(
|
||
|
|
default_fmt=default_fmt,
|
||
|
|
dest_dir=dest_dir_link,
|
||
|
|
build_dir=build_dir_link,
|
||
|
|
source_link=src_link,
|
||
|
|
multi_image=len(images) > 1,
|
||
|
|
options=opts,
|
||
|
|
images=images,
|
||
|
|
source_code=source_code,
|
||
|
|
html_show_formats=config.plot_html_show_formats and len(images),
|
||
|
|
caption=caption)
|
||
|
|
|
||
|
|
total_lines.extend(result.split("\n"))
|
||
|
|
total_lines.extend("\n")
|
||
|
|
|
||
|
|
if total_lines:
|
||
|
|
state_machine.insert_input(total_lines, source=source_file_name)
|
||
|
|
|
||
|
|
# copy image files to builder's output directory, if necessary
|
||
|
|
Path(dest_dir).mkdir(parents=True, exist_ok=True)
|
||
|
|
|
||
|
|
for code_piece, images in results:
|
||
|
|
for img in images:
|
||
|
|
for fn in img.filenames():
|
||
|
|
destimg = os.path.join(dest_dir, os.path.basename(fn))
|
||
|
|
if fn != destimg:
|
||
|
|
shutil.copyfile(fn, destimg)
|
||
|
|
|
||
|
|
# copy script (if necessary)
|
||
|
|
Path(dest_dir, output_base + source_ext).write_text(
|
||
|
|
unescape_doctest(code) if source_file_name == rst_file else code,
|
||
|
|
encoding='utf-8')
|
||
|
|
|
||
|
|
return errors
|