bcb-0012
0.167
Challenge · difficulty 4/5
# BigCodeBench/12
Implement a file **`solution.py`** that completes the function below. Keep the given name and signature; define `task_func` at module level.
Allowed libraries: `subprocess`, `datetime`, `json`, `os`.
```python
import subprocess
import os
import json
from datetime import datetime
def task_func(script_name='backup.sh', log_file='/home/user/backup_log.json'):
"""
Runs the provided backup shell script and logs the start time, end time, and exit status
in a specified JSON log file.
Parameters:
- script_name (str): The name of the shell script to run. Default is 'backup.sh'.
- log_file (str): The path to the JSON log file where the execution details will be recorded. Default is '/home/user/backup_log.json'.
Returns:
dict: A dictionary containing:
- 'start_time': The start time of the script execution in the format '%Y-%m-%d %H:%M:%S'.
- 'end_time': The end time of the script execution in the format '%Y-%m-%d %H:%M:%S'.
- 'exit_status': The exit status of the script execution (0 for success, other values indicate an error).
Raises:
- FileNotFoundError: If the script file does not exist.
- RuntimeError: If there is an error executing the script.
Requirements:
- subprocess
- os
- datetime
- json
Example:
>>> task_func()
{'start_time': '2023-09-19 14:30:00', 'end_time': '2023-09-19 14:35:00', 'exit_status': 0}
"""
```
<!-- imported from BigCodeBench (BigCodeBench/12) -->
tests/test_bcb_0012.py
# Auto-generated from BigCodeBench BigCodeBench/12. Do not edit by hand.
import pathlib as _pathlib
exec(_pathlib.Path(__file__).with_name("solution.py").read_text(), globals())
import unittest
from unittest.mock import patch, mock_open
class TestCases(unittest.TestCase):
@patch("os.path.isfile", return_value=True)
@patch("subprocess.call", return_value=0)
@patch("builtins.open", new_callable=mock_open, read_data="{}")
def test_default_values_successful_script(self, mock_file, mock_subprocess, mock_os):
"""Test the function with default parameters and successful execution"""
result = task_func()
self.assertIn('start_time', result)
self.assertIn('end_time', result)
self.assertEqual(result['exit_status'], 0)
@patch("os.path.isfile", return_value=False)
def test_script_does_not_exist(self, mock_os):
"""Test the function raising FileNotFoundError when the script file does not exist"""
with self.assertRaises(FileNotFoundError):
task_func()
@patch("os.path.isfile", return_value=True)
@patch("subprocess.call", side_effect=Exception("Script failed"))
def test_script_execution_failure(self, mock_subprocess, mock_os):
"""Test the function raising RuntimeError on script execution failure"""
with self.assertRaises(RuntimeError):
task_func()
@patch("os.path.isfile", return_value=True)
@patch("subprocess.call", return_value=0)
@patch("builtins.open", new_callable=mock_open, read_data="{}")
def test_custom_values_successful_script(self, mock_file, mock_subprocess, mock_os):
"""Test the function with custom script name and log file with successful execution"""
script_name = "custom_backup.sh"
log_file = "/home/user/custom_backup_log.json"
result = task_func(script_name, log_file)
self.assertIn('start_time', result)
self.assertIn('end_time', result)
self.assertEqual(result['exit_status'], 0)
@patch("os.path.isfile", return_value=True)
@patch("subprocess.call", return_value=0)
@patch("builtins.open", new_callable=mock_open, read_data="{}")
def test_log_data_format(self, mock_file, mock_subprocess, mock_os):
"""Test that the timestamps are in the correct format"""
result = task_func()
self.assertTrue(result['start_time'].count(":") == 2)
self.assertTrue(result['end_time'].count(":") == 2)
@patch("os.path.isfile", return_value=True)
@patch("subprocess.call", return_value=1)
@patch("builtins.open", new_callable=mock_open, read_data="{}")
def test_non_zero_exit_status(self, mock_file, mock_subprocess, mock_os):
"""Test the function with a non-zero exit status"""
result = task_func()
self.assertEqual(result['exit_status'], 1)
System prompt
You are an expert programmer. Solve the task exactly as specified. Output your solution as fenced code blocks using the required file name(s) and the exact function/type signatures requested. Prefer correctness; do not include prose outside code unless asked.Proposed solution
```python
import subprocess
import os
import json
from datetime import datetime
def task_func(script_name='backup.sh', log_file='/home/user/backup_log.json'):
"""
Runs the provided backup shell script and logs the start time, end time, and exit status
in a specified JSON log file.
Parameters:
- script_name (str): The name of the shell script to run. Default is 'backup.sh'.
- log_file (str): The path to the JSON log file where the execution details will be recorded. Default is '/home/user/backup_log.json'.
Returns:
dict: A dictionary containing:
- 'start_time': The start time of the script execution in the format '%Y-%m-%d %H:%M:%S'.
- 'end_time': The end time of the script execution in the format '%Y-%m-%d %H:%M:%S'.
- 'exit_status': The exit status of the script execution (0 for success, other values indicate an error).
Raises:
- FileNotFoundError: If the script file does not exist.
- RuntimeError: If there is an error executing the script.
Requirements:
- subprocess
- os
- datetime
- json
Example:
>>> task_func()
{'start_time': '2023-09-19 14:30:00', 'end_time': '2023-09-19 14:35:00', 'exit_status': 0}
"""
# Check if the script file exists
if not os.path.isfile(script_name):
raise FileNotFoundError(f"The script file {script_name} does not exist.")
# Record the start time
start_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
# Run the script using subprocess
try:
result = subprocess.run([script_name], check=True)
end_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
exit_status = result.returncode
except subprocess.CalledProcessError as e:
# If there is an error executing the script, raise a RuntimeError
raise RuntimeError(f"An error occurred while executing the script: {e}")
# Record the end time
end_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
# Prepare the log entry
log_entry = {
'start_time': start_time,
'end_time': end_time,
'exit_status': exit_status
}
# Write the log entry to the JSON log file
with open(log_file, 'a') as f:
json.dump(log_entry, f)
f.write('\n') # Write a newline character after each log entry
return log_entry
```Test output (stdout)
executable_list = (executable,)
else:
# This matches the behavior of os._execvpe().
executable_list = tuple(
os.path.join(os.fsencode(dir), executable)
for dir in os.get_exec_path(env))
fds_to_keep = set(pass_fds)
fds_to_keep.add(errpipe_write)
self.pid = _posixsubprocess.fork_exec(
args, executable_list,
close_fds, tuple(sorted(map(int, fds_to_keep))),
cwd, env_list,
p2cread, p2cwrite, c2pread, c2pwrite,
errread, errwrite,
errpipe_read, errpipe_write,
restore_signals, start_new_session,
gid, gids, uid, umask,
preexec_fn)
self._child_created = True
finally:
# be sure the FD is closed no matter what
os.close(errpipe_write)
self._close_pipe_fds(p2cread, p2cwrite,
c2pread, c2pwrite,
errread, errwrite)
# Wait for exec to fail or succeed; possibly raising an
# exception (limited in size)
errpipe_data = bytearray()
while True:
part = os.read(errpipe_read, 50000)
errpipe_data += part
if not part or len(errpipe_data) > 50000:
break
finally:
# be sure the FD is closed no matter what
os.close(errpipe_read)
if errpipe_data:
try:
pid, sts = os.waitpid(self.pid, 0)
if pid == self.pid:
self._handle_exitstatus(sts)
else:
self.returncode = sys.maxsize
except ChildProcessError:
pass
try:
exception_name, hex_errno, err_msg = (
errpipe_data.split(b':', 2))
# The encoding here should match the encoding
# written in by the subprocess implementations
# like _posixsubprocess
err_msg = err_msg.decode()
except ValueError:
exception_name = b'SubprocessError'
hex_errno = b'0'
err_msg = 'Bad exception data from child: {!r}'.format(
bytes(errpipe_data))
child_exception_type = getattr(
builtins, exception_name.decode('ascii'),
SubprocessError)
if issubclass(child_exception_type, OSError) and hex_errno:
errno_num = int(hex_errno, 16)
child_exec_never_called = (err_msg == "noexec")
if child_exec_never_called:
err_msg = ""
# The error must be from chdir(cwd).
err_filename = cwd
else:
err_filename = orig_executable
if errno_num != 0:
err_msg = os.strerror(errno_num)
> raise child_exception_type(errno_num, err_msg, err_filename)
E FileNotFoundError: [Errno 2] No such file or directory: 'backup.sh'
/home/psc/miniconda3/envs/peakstone-bcb/lib/python3.10/subprocess.py:1863: FileNotFoundError
=========================== short test summary info ============================
FAILED test_bcb_0012.py::TestCases::test_custom_values_successful_script - Fi...
FAILED test_bcb_0012.py::TestCases::test_default_values_successful_script - F...
FAILED test_bcb_0012.py::TestCases::test_log_data_format - FileNotFoundError:...
FAILED test_bcb_0012.py::TestCases::test_non_zero_exit_status - FileNotFoundE...
FAILED test_bcb_0012.py::TestCases::test_script_execution_failure - FileNotFo...
5 failed, 1 passed in 0.12s
Self-repair attempts
[
{
"total": 6,
"answer": "```python\nimport subprocess\nimport os\nimport json\nfrom datetime import datetime\n\ndef task_func(script_name='backup.sh', log_file='/home/user/backup_log.json'):\n \"\"\"\n Runs the provided backup shell script and logs the start time, end time, and exit status \n in a specified JSON log file.\n \n Parameters:\n - script_name (str): The name of the shell script to run. Default is 'backup.sh'.\n - log_file (str): The path to the JSON log file where the execution details will be recorded. Default is '/home/user/backup_log.json'.\n \n Returns:\n dict: A dictionary containing:\n - 'start_time': The start time of the script execution in the format '%Y-%m-%d %H:%M:%S'.\n - 'end_time': The end time of the script execution in the format '%Y-%m-%d %H:%M:%S'.\n - 'exit_status': The exit status of the script execution (0 for success, other values indicate an error).\n \n Raises:\n - FileNotFoundError: If the script file does not exist.\n - RuntimeError: If there is an error executing the script.\n \n Requirements:\n - subprocess\n - os\n - datetime\n - json\n \n Example:\n >>> task_func()\n {'start_time': '2023-09-19 14:30:00', 'end_time': '2023-09-19 14:35:00', 'exit_status': 0}\n \"\"\"\n # Check if the script file exists\n if not os.path.isfile(script_name):\n raise FileNotFoundError(f\"The script file {script_name} does not exist.\")\n \n # Record the start time\n start_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')\n \n # Run the script using subprocess\n try:\n result = subprocess.run([script_name], check=True)\n end_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')\n exit_status = result.returncode\n except subprocess.CalledProcessError as e:\n # If there is an error executing the script, raise a RuntimeError\n raise RuntimeError(f\"An error occurred while executing the script: {e}\")\n \n # Record the end time\n end_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')\n \n # Prepare the log entry\n log_entry = {\n 'start_time': start_time,\n 'end_time': end_time,\n 'exit_status': exit_status\n }\n \n # Write the log entry to the JSON log file\n with open(log_file, 'a') as f:\n json.dump(log_entry, f)\n f.write('\\n') # Write a newline character after each log entry\n \n return log_entry\n```",
"passed": 1,
"test_error": " if not part or len(errpipe_data) > 50000:\n break\n finally:\n # be sure the FD is closed no matter what\n os.close(errpipe_read)\n \n if errpipe_data:\n try:\n pid, sts = os.waitpid(self.pid, 0)\n if pid == self.pid:\n self._handle_exitstatus(sts)\n else:\n self.returncode = sys.maxsize\n except ChildProcessError:\n pass\n \n try:\n exception_name, hex_errno, err_msg = (\n errpipe_data.split(b':', 2))\n # The encoding here should match the encoding\n # written in by the subprocess implementations\n # like _posixsubprocess\n err_msg = err_msg.decode()\n except ValueError:\n exception_name = b'SubprocessError'\n hex_errno = b'0'\n err_msg = 'Bad exception data from child: {!r}'.format(\n bytes(errpipe_data))\n child_exception_type = getattr(\n builtins, exception_name.decode('ascii'),\n SubprocessError)\n if issubclass(child_exception_type, OSError) and hex_errno:\n errno_num = int(hex_errno, 16)\n child_exec_never_called = (err_msg == \"noexec\")\n if child_exec_never_called:\n err_msg = \"\"\n # The error must be from chdir(cwd).\n err_filename = cwd\n else:\n err_filename = orig_executable\n if errno_num != 0:\n err_msg = os.strerror(errno_num)\n> raise child_exception_type(errno_num, err_msg, err_filename)\nE FileNotFoundError: [Errno 2] No such file or directory: 'backup.sh'\n\n/home/psc/miniconda3/envs/peakstone-bcb/lib/python3.10/subprocess.py:1863: FileNotFoundError\n=========================== short test summary info ============================\nFAILED test_bcb_0012.py::TestCases::test_custom_values_successful_script - Fi...\nFAILED test_bcb_0012.py::TestCases::test_default_values_successful_script - F...\nFAILED test_bcb_0012.py::TestCases::test_log_data_format - FileNotFoundError:...\nFAILED test_bcb_0012.py::TestCases::test_non_zero_exit_status - FileNotFoundE...\nFAILED test_bcb_0012.py::TestCases::test_script_execution_failure - FileNotFo...\n5 failed, 1 passed in 0.12s"
},
{
"total": 6,
"answer": "```python\nimport subprocess\nimport os\nimport json\nfrom datetime import datetime\n\ndef task_func(script_name='backup.sh', log_file='/home/user/backup_log.json'):\n \"\"\"\n Runs the provided backup shell script and logs the start time, end time, and exit status \n in a specified JSON log file.\n \n Parameters:\n - script_name (str): The name of the shell script to run. Default is 'backup.sh'.\n - log_file (str): The path to the JSON log file where the execution details will be recorded. Default is '/home/user/backup_log.json'.\n \n Returns:\n dict: A dictionary containing:\n - 'start_time': The start time of the script execution in the format '%Y-%m-%d %H:%M:%S'.\n - 'end_time': The end time of the script execution in the format '%Y-%m-%d %H:%M:%S'.\n - 'exit_status': The exit status of the script execution (0 for success, other values indicate an error).\n \n Raises:\n - FileNotFoundError: If the script file does not exist.\n - RuntimeError: If there is an error executing the script.\n \n Requirements:\n - subprocess\n - os\n - datetime\n - json\n \n Example:\n >>> task_func()\n {'start_time': '2023-09-19 14:30:00', 'end_time': '2023-09-19 14:35:00', 'exit_status': 0}\n \"\"\"\n # Check if the script file exists\n if not os.path.isfile(script_name):\n raise FileNotFoundError(f\"The script file {script_name} does not exist.\")\n \n # Record the start time\n start_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')\n \n # Run the script using subprocess\n try:\n result = subprocess.run([script_name], check=True)\n end_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')\n exit_status = result.returncode\n except subprocess.CalledProcessError as e:\n # If there is an error executing the script, raise a RuntimeError\n raise RuntimeError(f\"An error occurred while executing the script: {e}\")\n \n # Record the end time\n end_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')\n \n # Prepare the log entry\n log_entry = {\n 'start_time': start_time,\n 'end_time': end_time,\n 'exit_status': exit_status\n }\n \n # Write the log entry to the JSON log file\n with open(log_file, 'a') as f:\n json.dump(log_entry, f)\n f.write('\\n') # Write a newline character after each log entry\n \n return log_entry\n```",
"passed": 1,
"test_error": " if not part or len(errpipe_data) > 50000:\n break\n finally:\n # be sure the FD is closed no matter what\n os.close(errpipe_read)\n \n if errpipe_data:\n try:\n pid, sts = os.waitpid(self.pid, 0)\n if pid == self.pid:\n self._handle_exitstatus(sts)\n else:\n self.returncode = sys.maxsize\n except ChildProcessError:\n pass\n \n try:\n exception_name, hex_errno, err_msg = (\n errpipe_data.split(b':', 2))\n # The encoding here should match the encoding\n # written in by the subprocess implementations\n # like _posixsubprocess\n err_msg = err_msg.decode()\n except ValueError:\n exception_name = b'SubprocessError'\n hex_errno = b'0'\n err_msg = 'Bad exception data from child: {!r}'.format(\n bytes(errpipe_data))\n child_exception_type = getattr(\n builtins, exception_name.decode('ascii'),\n SubprocessError)\n if issubclass(child_exception_type, OSError) and hex_errno:\n errno_num = int(hex_errno, 16)\n child_exec_never_called = (err_msg == \"noexec\")\n if child_exec_never_called:\n err_msg = \"\"\n # The error must be from chdir(cwd).\n err_filename = cwd\n else:\n err_filename = orig_executable\n if errno_num != 0:\n err_msg = os.strerror(errno_num)\n> raise child_exception_type(errno_num, err_msg, err_filename)\nE FileNotFoundError: [Errno 2] No such file or directory: 'backup.sh'\n\n/home/psc/miniconda3/envs/peakstone-bcb/lib/python3.10/subprocess.py:1863: FileNotFoundError\n=========================== short test summary info ============================\nFAILED test_bcb_0012.py::TestCases::test_custom_values_successful_script - Fi...\nFAILED test_bcb_0012.py::TestCases::test_default_values_successful_script - F...\nFAILED test_bcb_0012.py::TestCases::test_log_data_format - FileNotFoundError:...\nFAILED test_bcb_0012.py::TestCases::test_non_zero_exit_status - FileNotFoundE...\nFAILED test_bcb_0012.py::TestCases::test_script_execution_failure - FileNotFo...\n5 failed, 1 passed in 0.12s"
},
{
"total": 6,
"answer": "```python\nimport subprocess\nimport os\nimport json\nfrom datetime import datetime\n\ndef task_func(script_name='backup.sh', log_file='/home/user/backup_log.json'):\n \"\"\"\n Runs the provided backup shell script and logs the start time, end time, and exit status \n in a specified JSON log file.\n \n Parameters:\n - script_name (str): The name of the shell script to run. Default is 'backup.sh'.\n - log_file (str): The path to the JSON log file where the execution details will be recorded. Default is '/home/user/backup_log.json'.\n \n Returns:\n dict: A dictionary containing:\n - 'start_time': The start time of the script execution in the format '%Y-%m-%d %H:%M:%S'.\n - 'end_time': The end time of the script execution in the format '%Y-%m-%d %H:%M:%S'.\n - 'exit_status': The exit status of the script execution (0 for success, other values indicate an error).\n \n Raises:\n - FileNotFoundError: If the script file does not exist.\n - RuntimeError: If there is an error executing the script.\n \n Requirements:\n - subprocess\n - os\n - datetime\n - json\n \n Example:\n >>> task_func()\n {'start_time': '2023-09-19 14:30:00', 'end_time': '2023-09-19 14:35:00', 'exit_status': 0}\n \"\"\"\n # Check if the script file exists\n if not os.path.isfile(script_name):\n raise FileNotFoundError(f\"The script file {script_name} does not exist.\")\n \n # Record the start time\n start_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')\n \n # Run the script using subprocess\n try:\n result = subprocess.run([script_name], check=True)\n end_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')\n exit_status = result.returncode\n except FileNotFoundError:\n # If the script file is not found, raise FileNotFoundError\n raise FileNotFoundError(f\"The script file {script_name} does not exist.\")\n except subprocess.CalledProcessError as e:\n # If there is an error executing the script, raise a RuntimeError\n raise RuntimeError(f\"An error occurred while executing the script: {e}\")\n \n # Record the end time\n end_time = datetime.now().strftime('%Y-%m-%d %H:%M:%S')\n \n # Prepare the log entry\n log_entry = {\n 'start_time': start_time,\n 'end_time': end_time,\n 'exit_status': exit_status\n }\n \n # Write the log entry to the JSON log file\n with open(log_file, 'a') as f:\n json.dump(log_entry, f)\n f.write('\\n') # Write a newline character after each log entry\n \n return log_entry\n```",
"passed": 1,
"test_error": ""
}
]