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import functools |
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import importlib |
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import json |
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from typing import Any |
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import click |
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from graphinate import GraphModel, builders, graphql, materialize |
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from graphinate.server import DEFAULT_PORT |
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def _get_kwargs(ctx) -> dict: |
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return dict([item.strip('--').split('=') for item in ctx.args if item.startswith("--")]) |
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15
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def import_from_string(import_str: Any) -> Any: |
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"""Import an object from a string reference {module-name}:{variable-name} |
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For example given a var `model=GraphModel()` defined in app.py file, |
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then the reference would be app:model |
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""" |
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if not isinstance(import_str, str): |
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return import_str |
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module_str, _, attrs_str = import_str.partition(":") |
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if not module_str or not attrs_str: |
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message = f"Import string '{import_str}' must be in format '<module>:<attribute>'." |
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raise ImportFromStringError(message) |
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try: |
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module = importlib.import_module(module_str) |
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except ModuleNotFoundError as exc: |
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if exc.name != module_str: |
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raise exc from None |
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message = f"Could not import module '{module_str}'." |
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raise ImportFromStringError(message) from exc |
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instance = module |
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try: |
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for attr_str in attrs_str.split("."): |
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instance = getattr(instance, attr_str) |
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except AttributeError as exc: |
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message = f"Attribute '{attrs_str}' not found in module '{module_str}'." |
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raise ImportFromStringError(message) from exc |
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return instance |
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48
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49
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class ImportFromStringError(Exception): |
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pass |
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52
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53
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class GraphModelType(click.ParamType): |
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name = "MODEL" |
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56
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def convert(self, value, param, ctx) -> GraphModel: |
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if isinstance(value, GraphModel): |
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return value |
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60
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try: |
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return import_from_string(value) if isinstance(value, str) else value |
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except Exception as e: |
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self.fail(str(e)) |
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64
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65
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66
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model_option = click.option('-m', '--model', |
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type=GraphModelType(), |
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help="A GraphModel instance reference {module-name}:{GraphModel-instance-variable-name}" |
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" For example given a var `model=GraphModel()` defined in app.py file, then the" |
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" reference would be app:model") |
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72
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73
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@click.group() |
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@click.pass_context |
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def cli(ctx): |
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pass |
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78
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79
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@cli.command() |
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@model_option |
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@click.pass_context |
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def save(ctx, model): |
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with open(f"{model.name}.json", mode='w') as fp: |
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materialize(model=model, |
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builder=builders.D3Builder, |
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actualizer=functools.partial(json.dump, fp=fp, default=str), |
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87
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**_get_kwargs(ctx)) |
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88
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89
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90
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@cli.command() |
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91
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@model_option |
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@click.option('-p', '--port', type=int, default=DEFAULT_PORT, help='Port number.') |
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93
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@click.pass_context |
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94
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def server(ctx, model, port): |
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95
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message = """ |
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96
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██████╗ ██████╗ █████╗ ██████╗ ██╗ ██╗██╗███╗ ██╗ █████╗ ████████╗███████╗ |
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97
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██╔════╝ ██╔══██╗██╔══██╗██╔══██╗██║ ██║██║████╗ ██║██╔══██╗╚══██╔══╝██╔════╝ |
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98
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██║ ███╗██████╔╝███████║██████╔╝███████║██║██╔██╗ ██║███████║ ██║ █████╗ |
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99
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██║ ██║██╔══██╗██╔══██║██╔═══╝ ██╔══██║██║██║╚██╗██║██╔══██║ ██║ ██╔══╝ |
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100
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╚██████╔╝██║ ██║██║ ██║██║ ██║ ██║██║██║ ╚████║██║ ██║ ██║ ███████╗ |
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101
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╚═════╝ ╚═╝ ╚═╝╚═╝ ╚═╝╚═╝ ╚═╝ ╚═╝╚═╝╚═╝ ╚═══╝╚═╝ ╚═╝ ╚═╝ ╚══════╝""" |
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102
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click.echo(message) |
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103
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materialize(model=model, |
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104
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builder=builders.GraphQLBuilder, |
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105
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actualizer=functools.partial(graphql, port=port), |
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106
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**_get_kwargs(ctx)) |
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107
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erivlis /
graphinate
