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"""
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/>.
Copyright © 2019 Cloud Linux Software Inc.
This software is also available under ImunifyAV commercial license,
see <https://www.imunify360.com/legal/eula>
"""
from pathlib import Path
def trim(message: str, *, max_length: int) -> str:
"""
Remove the middle part of the string,
so that the overall length is no more than specified.
Returned string's length should not exceed max_length.
"""
# We don't want to handle corner cases.
# If you need to trim strings that much use another function.
assert (
max_length > 50
), "Specify a bigger max_length or don't use this function"
if len(message) <= max_length:
return message
filler = "\n...\n"
left_cutoff = max_length // 2
right_cutoff = max(1, max_length - left_cutoff - len(filler))
return message[:left_cutoff] + filler + message[-right_cutoff:]
def trim_file_content(log_path: Path) -> str:
# 4000 is 50 (~ screen height worth of text) lines of 80 characters
try:
log = trim(
log_path.read_text(encoding="utf-8", errors="backslashreplace"),
max_length=4000,
)
except FileNotFoundError:
log = ""
return log