| import sys |
| from datetime import datetime |
| from difflib import unified_diff |
| from pathlib import Path |
| from typing import Optional |
| |
| |
| def format_simplified(import_line: str) -> str: |
| import_line = import_line.strip() |
| if import_line.startswith("from "): |
| import_line = import_line.replace("from ", "") |
| import_line = import_line.replace(" import ", ".") |
| elif import_line.startswith("import "): |
| import_line = import_line.replace("import ", "") |
| |
| return import_line |
| |
| |
| def format_natural(import_line: str) -> str: |
| import_line = import_line.strip() |
| if not import_line.startswith("from ") and not import_line.startswith("import "): |
| if "." not in import_line: |
| return "import {0}".format(import_line) |
| parts = import_line.split(".") |
| end = parts.pop(-1) |
| return "from {0} import {1}".format(".".join(parts), end) |
| |
| return import_line |
| |
| |
| def show_unified_diff(*, file_input: str, file_output: str, file_path: Optional[Path]) -> None: |
| file_name = '' if file_path is None else str(file_path) |
| file_mtime = str(datetime.now() if file_path is None |
| else datetime.fromtimestamp(file_path.stat().st_mtime)) |
| |
| unified_diff_lines = unified_diff( |
| file_input.splitlines(keepends=True), |
| file_output.splitlines(keepends=True), |
| fromfile=file_name + ':before', |
| tofile=file_name + ':after', |
| fromfiledate=file_mtime, |
| tofiledate=str(datetime.now()) |
| ) |
| for line in unified_diff_lines: |
| sys.stdout.write(line) |
| |
| |
| def ask_whether_to_apply_changes_to_file(file_path: str) -> bool: |
| answer = None |
| while answer not in ('yes', 'y', 'no', 'n', 'quit', 'q'): |
| answer = input("Apply suggested changes to '{0}' [y/n/q]? ".format(file_path)).lower() |
| if answer in ('no', 'n'): |
| return False |
| if answer in ('quit', 'q'): |
| sys.exit(1) |
| return True |