63 lines
2.2 KiB
Python
63 lines
2.2 KiB
Python
import collections
|
|
import importlib
|
|
import pkgutil
|
|
|
|
import click
|
|
|
|
from ofx_processor import processors
|
|
|
|
|
|
def discover_processors(cli: click.Group):
|
|
"""
|
|
Discover processors.
|
|
|
|
To be discovered, processors must:
|
|
* Be in the `processors` package.
|
|
* Declare a <BankName>Processor class
|
|
* Declare a main function in the module, outside of the class.
|
|
The main function must not be a click command, decorators will be added on the fly.
|
|
The main function must accept two parameters:
|
|
* filename: str, containing the name of the file to process, as passed on the command line
|
|
* keep: boolean, whether to keep the file after processing it or not
|
|
|
|
:param cli: The main CLI to add discovered processors to.
|
|
"""
|
|
prefix = processors.__name__ + "."
|
|
for module in pkgutil.iter_modules(processors.__path__, prefix):
|
|
module = importlib.import_module(module.name)
|
|
for item in dir(module):
|
|
if (
|
|
item.endswith("Processor")
|
|
and item != "Processor"
|
|
and "Base" not in item
|
|
):
|
|
cls = getattr(module, item)
|
|
assert hasattr(
|
|
module, "main"
|
|
), "There must be a main function in the processor module."
|
|
assert hasattr(
|
|
cls, "command_name"
|
|
), "You must add a command_name member to your processor class."
|
|
|
|
# Apply default decorators
|
|
method = getattr(module, "main")
|
|
method = click.option(
|
|
"--keep/--no-keep",
|
|
help="Keep the file after processing it.",
|
|
default=False,
|
|
show_default=True,
|
|
)(method)
|
|
method = click.argument("filename")(method)
|
|
method = click.command(cls.command_name)(method)
|
|
|
|
cli.add_command(method)
|
|
|
|
|
|
class OrderedGroup(click.Group):
|
|
def __init__(self, name=None, commands=None, **attrs):
|
|
super(OrderedGroup, self).__init__(name, commands, **attrs)
|
|
#: the registered subcommands by their exported names.
|
|
self.commands = commands or collections.OrderedDict()
|
|
|
|
def list_commands(self, ctx):
|
|
return self.commands
|