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| Original file line number | Diff line number | Diff line change |
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| # Small but customizable utility to create backups and store them in | ||
| # cloud storage providers | ||
| # Copyright (C) 2019 Melchor Alejo Garau Madrigal / Andrés Mateos García | ||
| # | ||
| # This program is free software: you can redistribute it and/or modify | ||
| # it under the terms of the GNU General Public License as published by | ||
| # the Free Software Foundation, either version 3 of the License, or | ||
| # (at your option) any later version. | ||
| # | ||
| # This program is distributed in the hope that it will be useful, | ||
| # but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| # GNU General Public License for more details. | ||
| # | ||
| # You should have received a copy of the GNU General Public License | ||
| # along with this program. If not, see <https://www.gnu.org/licenses/>. | ||
|
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| import logging | ||
| from pathlib import Path | ||
| import subprocess | ||
| from threading import Thread | ||
| from typing import Optional, List, Dict | ||
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| hooks_config: Dict[str, List[str]] = {} | ||
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| def run_hook(hook_name: str, *args: str, cwd: Optional[str] = None): | ||
| logger = logging.getLogger(__name__) | ||
| if hook_name not in hooks_config: | ||
| logger.debug(f'The hook {hook_name} is not defined, not running it') | ||
| return | ||
|
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| if cwd is not None: | ||
| cwd_path = Path(cwd) | ||
| if not cwd_path.exists(): | ||
| logger.warning(f'The CWD {cwd} does not exist') | ||
| return | ||
| if not cwd_path.is_dir(): | ||
| logger.warning(f'The CWD {cwd} is not a folder') | ||
| return | ||
|
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| logger.info(f'Running hook {hook_name}') | ||
| joins = [(_hook_runner(hook_name, hook, hook_name, *args, cwd=cwd, shell=True), hook) | ||
| for hook in hooks_config[hook_name]] | ||
| for join, hook in joins: | ||
| try: | ||
| join() | ||
| except Exception: | ||
| logger.debug(f'Failed running the hook {hook}') | ||
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| def _hook_runner(name: str, path: str, *args: str, cwd: Optional[str] = None, shell: bool = False): | ||
| logger = logging.getLogger(f'{__name__}:{name}') | ||
| logger.debug(f'Running script {path}') | ||
| process = subprocess.Popen([path, *args], | ||
| stderr=subprocess.PIPE, | ||
| stdout=subprocess.PIPE, | ||
| cwd=cwd, | ||
| bufsize=1, | ||
| shell=shell) | ||
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| # Print stderr lines in a thread | ||
| stderr_thread = Thread(target=lambda: [logger.debug(err_line[:-1].decode('UTF-8')) for err_line in process.stderr]) | ||
| stderr_thread.start() | ||
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| # Read every line (from stdout) into the logger | ||
| for line in process.stdout: | ||
| logger.debug(line[0:-1].decode('UTF-8')) | ||
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| # Join thread and wait to wait process (same as join, but in processes) | ||
| def join(): | ||
| stderr_thread.join() | ||
| return process.wait() | ||
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| return join | ||
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| def define_hook(hook_name: str, hook_script: str): | ||
| if hook_name not in hooks_config: | ||
| hooks_config[hook_name] = [] | ||
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| hooks_config[hook_name].append(hook_script) |