Source code for rebasehelper.helpers.path_helper
# -*- coding: utf-8 -*-
#
# This tool helps you rebase your package to the latest version
# Copyright (C) 2013-2019 Red Hat, Inc.
#
# 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 2 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, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Authors: Petr Hráček <phracek@redhat.com>
# Tomáš Hozza <thozza@redhat.com>
# Nikola Forró <nforro@redhat.com>
# František Nečas <fifinecas@seznam.cz>
import fnmatch
import os
import tempfile
[docs]
class PathHelper:
"""Class for performing path related tasks."""
[docs]
@staticmethod
def find_first_dir_with_file(top_path, pattern):
"""Recursively searches for a directory containing a file that matches the given pattern.
Args:
top_path (str): Directory where to start the search.
pattern (str): Filename pattern.
Returns:
str: Full path to the directory containing the first occurence of the searched file.
None if there is no file matching the pattern.
"""
for root, dirs, files in os.walk(top_path):
dirs.sort()
for f in files:
if fnmatch.fnmatch(f, pattern):
return os.path.abspath(root)
return None
[docs]
@staticmethod
def find_first_file(top_path, pattern, recursion_level=None):
"""Recursively searches for a file that matches the given pattern.
Args:
top_path (str): Directory where to start the search.
pattern (str): Filename pattern.
recursion_level (int): How deep in the directory tree the search can go.
Returns:
str: Path to the file matching the pattern or None if there is no file matching the pattern.
"""
for loop, (root, dirs, files) in enumerate(os.walk(top_path)):
dirs.sort()
for f in files:
if fnmatch.fnmatch(f, pattern):
return os.path.join(os.path.abspath(root), f)
if recursion_level is not None:
if loop == recursion_level:
break
return None
[docs]
@staticmethod
def find_all_files(top_path, pattern):
"""Recursively searches for all files matching the given pattern.
Args:
top_path (str): Directory where to start the search.
pattern (str): Filename pattern.
Returns:
list: List containing absolute paths to all found files.
"""
files_list = []
for root, dirs, files in os.walk(top_path):
dirs.sort()
for f in files:
if fnmatch.fnmatch(f, pattern):
files_list.append(os.path.join(os.path.abspath(root), f))
return files_list
[docs]
@staticmethod
def find_all_files_current_dir(top_path, pattern):
"""Searches for all files that match the given pattern inside a directory.
Args:
top_path (str): Directory where to start the search.
pattern (str): Filename pattern.
Returns:
list: List containing absolute paths to all found files.
"""
files_list = []
for files in os.listdir(top_path):
if fnmatch.fnmatch(files, pattern):
files_list.append(os.path.join(os.path.abspath(top_path), files))
return files_list
[docs]
@staticmethod
def get_temp_dir():
"""Creates a new temporary directory.
Return:
str: Path to the created directory.
"""
return tempfile.mkdtemp(prefix='rebase-helper-')
[docs]
@staticmethod
def file_available(filename):
"""Checks if the given file exists.
Args:
filename (str): Path to the file.
Returns:
bool: Whether the file exists.
"""
if os.path.exists(filename) and os.path.getsize(filename) != 0:
return True
else:
return False