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thefuck/thefuck/output/read_log.py
2017-08-26 06:29:38 +02:00

72 lines
1.8 KiB
Python

import os
import shlex
try:
from shutil import get_terminal_size
except ImportError:
from backports.shutil_get_terminal_size import get_terminal_size
from warnings import warn
import pyte
from ..exceptions import ScriptNotInLog
from .. import const
def _group_by_calls(log):
script_line = None
lines = []
for line in log:
try:
line = line.decode()
except UnicodeDecodeError:
continue
if const.USER_COMMAND_MARK in line:
if script_line:
yield script_line, lines
script_line = line
lines = [line]
elif script_line is not None:
lines.append(line)
if script_line:
yield script_line, lines
def _get_script_group_lines(grouped, script):
parts = shlex.split(script)
for script_line, lines in reversed(grouped):
if all(part in script_line for part in parts):
return lines
raise ScriptNotInLog
def _get_output_lines(script, log_file):
lines = log_file.readlines()[-const.LOG_SIZE:]
grouped = list(_group_by_calls(lines))
script_lines = _get_script_group_lines(grouped, script)
screen = pyte.Screen(get_terminal_size().columns, len(script_lines))
stream = pyte.Stream(screen)
stream.feed(''.join(script_lines))
return screen.display
def get_output(script, _):
if 'THEFUCK_OUTPUT_LOG' not in os.environ:
warn("Output log isn't specified")
return None, None
try:
with open(os.environ['THEFUCK_OUTPUT_LOG'], 'rb') as log_file:
lines = _get_output_lines(script, log_file)
output = '\n'.join(lines).strip()
return output, output
except OSError:
warn("Can't read output log")
return None, None
except ScriptNotInLog:
warn("Script not found in output log")
return None, None