mirror of
https://github.com/trezor/trezor-firmware.git
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111 lines
3.6 KiB
Python
111 lines
3.6 KiB
Python
"""
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Find out which functions are unused in the Monero app - based on
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`monero.pyi` file.
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"""
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import subprocess
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import sys
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from pathlib import Path
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from typing import Any, Dict, List, Set
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CURRENT_DIR = Path(__file__).resolve().parent
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ROOT_DIR = CURRENT_DIR.parent.parent
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HELPER_FILE = ROOT_DIR / "core/src/apps/monero/xmr/crypto_helpers.py"
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MOCK_FILE = ROOT_DIR / "core/mocks/generated/trezorcrypto/monero.pyi"
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def generate_function_mapping() -> Dict[str, List[str]]:
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"""Look at all Monero functions and generate a mapping of their usage"""
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# Load all the function names in .pyi file
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pyi_functions: Set[str] = set()
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with open(MOCK_FILE, "r") as f:
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lines = f.readlines()
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for line in lines:
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if line.startswith("def"):
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f_name = line.split("(")[0].split(" ")[1]
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pyi_functions.add(f_name)
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# Load definitions of helper functions
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helper_func_defs: Dict[str, str] = {}
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with open(HELPER_FILE, "r") as f:
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lines = f.readlines()
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current_func = ""
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for line in lines:
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if line.startswith("def"):
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current_func = line.split("(")[0].split(" ")[1]
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helper_func_defs[current_func] = line
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elif not current_func:
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continue
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else:
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helper_func_defs[current_func] += line
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# Try to connect function names with helper definitions
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func_mapping: Dict[str, List[str]] = {}
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for func_name in pyi_functions:
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func_mapping[func_name] = []
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for func_def_name, func_code in helper_func_defs.items():
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if f".{func_name}(" in func_code:
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func_mapping[func_name].append(func_def_name)
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# Functions may not be used in helper file, alias them to themselves
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if not func_mapping[func_name]:
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func_mapping[func_name] = [func_name]
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return func_mapping
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def check_usage_of_functions(func_mapping: Dict[str, List[str]]) -> None:
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"""Go through all the functions and check if they are used in the Monero app.
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Generates a report and exits with an appropriate exit code.
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"""
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# Include boolean field to know what is used
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is_used_mappings: Dict[str, Dict[str, Any]] = {}
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for func_name, mapping in func_mapping.items():
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is_used_mappings[func_name] = {"mapping": mapping, "is_used": False}
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# Check if any of the mapping names is used - and mark it as used if so
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for func_name in is_used_mappings:
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for mapping in is_used_mappings[func_name]["mapping"]:
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is_there = _is_used(mapping)
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if is_there:
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is_used_mappings[func_name]["is_used"] = True
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break
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# Find unused functions and generate a report
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unused_functions = {
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fc: val for fc, val in is_used_mappings.items() if not val["is_used"]
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}
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if not unused_functions:
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print("SUCCESS: no functions are unused")
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sys.exit(0)
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else:
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print(f"{len(unused_functions)} unused functions:")
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for func, values in unused_functions.items():
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print(func, values)
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sys.exit(1)
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def _is_used(func_name: str) -> bool:
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"""Find function usage in the Monero app or in test files"""
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cmds = [
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rf'grep -r ".{func_name}\b" {ROOT_DIR}/core/src/apps/monero',
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rf'grep -r ".{func_name}\b" {ROOT_DIR}/core/tests',
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]
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for cmd in cmds:
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grep_result = subprocess.run(cmd, shell=True, stdout=subprocess.PIPE)
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if grep_result.returncode == 0:
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return True
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return False
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if "__main__" == __name__:
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func_mapping = generate_function_mapping()
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check_usage_of_functions(func_mapping)
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