160 lines
4.2 KiB
Python
160 lines
4.2 KiB
Python
# Copyright (c) 2011 The Chromium Embedded Framework Authors. All rights
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# reserved. Use of this source code is governed by a BSD-style license that
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# can be found in the LICENSE file.
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from glob import iglob
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import os
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import shutil
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import sys
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import time
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def read_file(name, normalize=True):
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""" Read a file. """
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try:
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f = open(name, 'r')
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# read the data
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data = f.read()
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if normalize:
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# normalize line endings
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data = data.replace("\r\n", "\n")
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return data
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except IOError, (errno, strerror):
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sys.stderr.write('Failed to read file ' + name + ': ' + strerror)
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raise
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else:
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f.close()
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def write_file(name, data):
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""" Write a file. """
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try:
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f = open(name, 'w')
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# write the data
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f.write(data)
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except IOError, (errno, strerror):
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sys.stderr.write('Failed to write file ' + name + ': ' + strerror)
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raise
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else:
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f.close()
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def path_exists(name):
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""" Returns true if the path currently exists. """
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return os.path.exists(name)
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def backup_file(name):
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""" Rename the file to a name that includes the current time stamp. """
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move_file(name, name + '.' + time.strftime('%Y-%m-%d-%H-%M-%S'))
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def copy_file(src, dst, quiet=True):
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""" Copy a file. """
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try:
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shutil.copy2(src, dst)
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if not quiet:
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sys.stdout.write('Transferring ' + src + ' file.\n')
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except IOError, (errno, strerror):
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sys.stderr.write('Failed to copy file from ' + src + ' to ' + dst + ': ' +
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strerror)
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raise
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def move_file(src, dst, quiet=True):
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""" Move a file. """
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try:
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shutil.move(src, dst)
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if not quiet:
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sys.stdout.write('Moving ' + src + ' file.\n')
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except IOError, (errno, strerror):
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sys.stderr.write('Failed to move file from ' + src + ' to ' + dst + ': ' +
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strerror)
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raise
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def copy_files(src_glob, dst_folder, quiet=True):
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""" Copy multiple files. """
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for fname in iglob(src_glob):
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dst = os.path.join(dst_folder, os.path.basename(fname))
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if os.path.isdir(fname):
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copy_dir(fname, dst, quiet)
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else:
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copy_file(fname, dst, quiet)
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def remove_file(name, quiet=True):
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""" Remove the specified file. """
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try:
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if path_exists(name):
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os.remove(name)
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if not quiet:
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sys.stdout.write('Removing ' + name + ' file.\n')
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except IOError, (errno, strerror):
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sys.stderr.write('Failed to remove file ' + name + ': ' + strerror)
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raise
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def copy_dir(src, dst, quiet=True):
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""" Copy a directory tree. """
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try:
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remove_dir(dst, quiet)
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shutil.copytree(src, dst)
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if not quiet:
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sys.stdout.write('Transferring ' + src + ' directory.\n')
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except IOError, (errno, strerror):
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sys.stderr.write('Failed to copy directory from ' + src + ' to ' + dst +
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': ' + strerror)
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raise
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def remove_dir(name, quiet=True):
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""" Remove the specified directory. """
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try:
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if path_exists(name):
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shutil.rmtree(name)
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if not quiet:
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sys.stdout.write('Removing ' + name + ' directory.\n')
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except IOError, (errno, strerror):
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sys.stderr.write('Failed to remove directory ' + name + ': ' + strerror)
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raise
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def make_dir(name, quiet=True):
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""" Create the specified directory. """
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try:
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if not path_exists(name):
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if not quiet:
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sys.stdout.write('Creating ' + name + ' directory.\n')
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os.makedirs(name)
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except IOError, (errno, strerror):
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sys.stderr.write('Failed to create directory ' + name + ': ' + strerror)
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raise
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def get_files(search_glob):
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""" Returns all files matching the search glob. """
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# Sort the result for consistency across platforms.
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return sorted(iglob(search_glob))
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def read_version_file(file, args):
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""" Read and parse a version file (key=value pairs, one per line). """
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lines = read_file(file).split("\n")
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for line in lines:
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parts = line.split('=', 1)
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if len(parts) == 2:
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args[parts[0]] = parts[1]
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def eval_file(src):
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""" Loads and evaluates the contents of the specified file. """
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return eval(read_file(src), {'__builtins__': None}, None)
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def normalize_path(path):
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""" Normalizes the path separator to match the Unix standard. """
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if sys.platform == 'win32':
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return path.replace('\\', '/')
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return path
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