274 lines
8.3 KiB
Python
274 lines
8.3 KiB
Python
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from collections import OrderedDict
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import json
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import sys
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import subprocess
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import shlex
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import os
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import argparse
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import shutil
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import functools
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import pkg_resources
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import yaml
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from ._r_components_generation import write_class_file
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from ._r_components_generation import generate_exports
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from ._py_components_generation import generate_class_file
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from ._py_components_generation import generate_imports
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from ._py_components_generation import generate_classes_files
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from ._jl_components_generation import generate_struct_file
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from ._jl_components_generation import generate_module
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reserved_words = [
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"UNDEFINED",
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"REQUIRED",
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"to_plotly_json",
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"available_properties",
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"available_wildcard_properties",
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"_.*",
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]
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class _CombinedFormatter(
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argparse.ArgumentDefaultsHelpFormatter, argparse.RawDescriptionHelpFormatter
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):
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pass
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# pylint: disable=too-many-locals, too-many-arguments, too-many-branches, too-many-statements
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def generate_components(
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components_source,
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project_shortname,
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package_info_filename="package.json",
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ignore="^_",
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rprefix=None,
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rdepends="",
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rimports="",
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rsuggests="",
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jlprefix=None,
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metadata=None,
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keep_prop_order=None,
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max_props=None,
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):
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project_shortname = project_shortname.replace("-", "_").rstrip("/\\")
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is_windows = sys.platform == "win32"
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extract_path = pkg_resources.resource_filename("dash", "extract-meta.js")
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reserved_patterns = "|".join(f"^{p}$" for p in reserved_words)
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os.environ["NODE_PATH"] = "node_modules"
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shutil.copyfile(
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"package.json", os.path.join(project_shortname, package_info_filename)
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)
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if not metadata:
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env = os.environ.copy()
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# Ensure local node modules is used when the script is packaged.
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env["MODULES_PATH"] = os.path.abspath("./node_modules")
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cmd = shlex.split(
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f'node {extract_path} "{ignore}" "{reserved_patterns}" {components_source}',
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posix=not is_windows,
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)
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proc = subprocess.Popen( # pylint: disable=consider-using-with
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cmd,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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shell=is_windows,
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env=env,
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)
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out, err = proc.communicate()
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status = proc.poll()
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if err:
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print(err.decode(), file=sys.stderr)
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if not out:
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print(
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f"Error generating metadata in {project_shortname} (status={status})",
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file=sys.stderr,
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)
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sys.exit(1)
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metadata = safe_json_loads(out.decode("utf-8"))
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py_generator_kwargs = {}
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if keep_prop_order is not None:
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keep_prop_order = [
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component.strip(" ") for component in keep_prop_order.split(",")
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]
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py_generator_kwargs["prop_reorder_exceptions"] = keep_prop_order
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if max_props:
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py_generator_kwargs["max_props"] = max_props
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generator_methods = [functools.partial(generate_class_file, **py_generator_kwargs)]
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if rprefix is not None or jlprefix is not None:
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with open("package.json", "r", encoding="utf-8") as f:
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pkg_data = safe_json_loads(f.read())
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if rprefix is not None:
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if not os.path.exists("man"):
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os.makedirs("man")
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if not os.path.exists("R"):
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os.makedirs("R")
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if os.path.isfile("dash-info.yaml"):
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with open("dash-info.yaml", encoding="utf-8") as yamldata:
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rpkg_data = yaml.safe_load(yamldata)
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else:
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rpkg_data = None
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generator_methods.append(
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functools.partial(write_class_file, prefix=rprefix, rpkg_data=rpkg_data)
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)
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if jlprefix is not None:
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generator_methods.append(
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functools.partial(generate_struct_file, prefix=jlprefix)
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)
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components = generate_classes_files(project_shortname, metadata, *generator_methods)
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with open(
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os.path.join(project_shortname, "metadata.json"), "w", encoding="utf-8"
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) as f:
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json.dump(metadata, f, indent=2)
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generate_imports(project_shortname, components)
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if rprefix is not None:
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generate_exports(
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project_shortname,
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components,
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metadata,
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pkg_data,
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rpkg_data,
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rprefix,
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rdepends,
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rimports,
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rsuggests,
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)
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if jlprefix is not None:
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generate_module(project_shortname, components, metadata, pkg_data, jlprefix)
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def safe_json_loads(s):
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jsondata_unicode = json.loads(s, object_pairs_hook=OrderedDict)
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if sys.version_info[0] >= 3:
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return jsondata_unicode
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return byteify(jsondata_unicode)
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def component_build_arg_parser():
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parser = argparse.ArgumentParser(
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prog="dash-generate-components",
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formatter_class=_CombinedFormatter,
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description="Generate dash components by extracting the metadata "
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"using react-docgen. Then map the metadata to Python classes.",
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)
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parser.add_argument("components_source", help="React components source directory.")
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parser.add_argument(
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"project_shortname", help="Name of the project to export the classes files."
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)
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parser.add_argument(
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"-p",
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"--package-info-filename",
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default="package.json",
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help="The filename of the copied `package.json` to `project_shortname`",
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)
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parser.add_argument(
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"-i",
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"--ignore",
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default="^_",
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help="Files/directories matching the pattern will be ignored",
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)
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parser.add_argument(
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"--r-prefix",
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help="Specify a prefix for Dash for R component names, write "
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"components to R dir, create R package.",
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)
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parser.add_argument(
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"--r-depends",
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default="",
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help="Specify a comma-separated list of R packages to be "
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"inserted into the Depends field of the DESCRIPTION file.",
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)
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parser.add_argument(
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"--r-imports",
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default="",
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help="Specify a comma-separated list of R packages to be "
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"inserted into the Imports field of the DESCRIPTION file.",
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)
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parser.add_argument(
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"--r-suggests",
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default="",
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help="Specify a comma-separated list of R packages to be "
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"inserted into the Suggests field of the DESCRIPTION file.",
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)
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parser.add_argument(
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"--jl-prefix",
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help="Specify a prefix for Dash for R component names, write "
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"components to R dir, create R package.",
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)
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parser.add_argument(
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"-k",
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"--keep-prop-order",
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default=None,
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help="Specify a comma-separated list of components which will use the prop "
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"order described in the component proptypes instead of alphabetically reordered "
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"props. Pass the 'ALL' keyword to have every component retain "
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"its original prop order.",
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)
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parser.add_argument(
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"--max-props",
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type=int,
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default=250,
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help="Specify the max number of props to list in the component signature. "
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"More props will still be shown in the docstring, and will still work when "
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"provided as kwargs to the component. Python <3.7 only supports 255 args, "
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"but you may also want to reduce further for improved readability at the "
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"expense of auto-completion for the later props. Use 0 to include all props.",
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)
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return parser
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def cli():
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args = component_build_arg_parser().parse_args()
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generate_components(
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args.components_source,
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args.project_shortname,
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package_info_filename=args.package_info_filename,
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ignore=args.ignore,
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rprefix=args.r_prefix,
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rdepends=args.r_depends,
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rimports=args.r_imports,
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rsuggests=args.r_suggests,
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jlprefix=args.jl_prefix,
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keep_prop_order=args.keep_prop_order,
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max_props=args.max_props,
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)
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# pylint: disable=undefined-variable
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def byteify(input_object):
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if isinstance(input_object, dict):
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return OrderedDict(
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[(byteify(key), byteify(value)) for key, value in input_object.iteritems()]
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)
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if isinstance(input_object, list):
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return [byteify(element) for element in input_object]
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if isinstance(input_object, unicode): # noqa:F821
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return input_object.encode("utf-8")
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return input_object
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if __name__ == "__main__":
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cli()
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