102 lines
3.6 KiB
Python
102 lines
3.6 KiB
Python
import hashlib
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import importlib
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import logging
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import os
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import sys
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import pathlib
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import urllib.parse
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import urllib.request
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from importlib import metadata
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from .output import log
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from .storage import storage
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plugins = {}
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# 1: List archinstall.plugin definitions
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# 2: Load the plugin entrypoint
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# 3: Initiate the plugin and store it as .name in plugins
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for plugin_definition in metadata.entry_points().get('archinstall.plugin', []):
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plugin_entrypoint = plugin_definition.load()
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try:
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plugins[plugin_definition.name] = plugin_entrypoint()
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except Exception as err:
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log(err, level=logging.ERROR)
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log(f"The above error was detected when loading the plugin: {plugin_definition}", fg="red", level=logging.ERROR)
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# The following functions and core are support structures for load_plugin()
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def localize_path(profile_path :str) -> str:
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if (url := urllib.parse.urlparse(profile_path)).scheme and url.scheme in ('https', 'http'):
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converted_path = f"/tmp/{os.path.basename(profile_path).replace('.py', '')}_{hashlib.md5(os.urandom(12)).hexdigest()}.py"
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with open(converted_path, "w") as temp_file:
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temp_file.write(urllib.request.urlopen(url.geturl()).read().decode('utf-8'))
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return converted_path
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else:
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return profile_path
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def import_via_path(path :str, namespace=None): # -> module (not sure how to write that in type definitions)
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if not namespace:
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namespace = os.path.basename(path)
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if namespace == '__init__.py':
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path = pathlib.PurePath(path)
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namespace = path.parent.name
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try:
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spec = importlib.util.spec_from_file_location(namespace, path)
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imported = importlib.util.module_from_spec(spec)
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sys.modules[namespace] = imported
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spec.loader.exec_module(sys.modules[namespace])
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return namespace
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except Exception as err:
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log(err, level=logging.ERROR)
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log(f"The above error was detected when loading the plugin: {path}", fg="red", level=logging.ERROR)
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try:
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del(sys.modules[namespace])
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except:
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pass
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def find_nth(haystack, needle, n):
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start = haystack.find(needle)
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while start >= 0 and n > 1:
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start = haystack.find(needle, start + len(needle))
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n -= 1
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return start
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def load_plugin(path :str): # -> module (not sure how to write that in type definitions)
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parsed_url = urllib.parse.urlparse(path)
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# The Profile was not a direct match on a remote URL
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if not parsed_url.scheme:
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# Path was not found in any known examples, check if it's an absolute path
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if os.path.isfile(path):
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namespace = import_via_path(path)
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elif parsed_url.scheme in ('https', 'http'):
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namespace = import_via_path(localize_path(path))
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if namespace in sys.modules:
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# Version dependency via __archinstall__version__ variable (if present) in the plugin
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# Any errors in version inconsistency will be handled through normal error handling if not defined.
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if hasattr(sys.modules[namespace], '__archinstall__version__'):
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archinstall_major_and_minor_version = float(storage['__version__'][:find_nth(storage['__version__'], '.', 2)])
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if sys.modules[namespace].__archinstall__version__ < archinstall_major_and_minor_version:
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log(f"Plugin {sys.modules[namespace]} does not support the current Archinstall version.", fg="red", level=logging.ERROR)
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# Locate the plugin entry-point called Plugin()
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# This in accordance with the entry_points() from setup.cfg above
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if hasattr(sys.modules[namespace], 'Plugin'):
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try:
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plugins[namespace] = sys.modules[namespace].Plugin()
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except Exception as err:
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log(err, level=logging.ERROR)
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log(f"The above error was detected when initiating the plugin: {path}", fg="red", level=logging.ERROR)
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else:
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log(f"Plugin '{path}' is missing a valid entry-point or is corrupt.", fg="yellow", level=logging.WARNING)
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