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49 lines
1.5 KiB
49 lines
1.5 KiB
# Copyright 2018 - The Android Open Source Project |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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"""File-related utilities.""" |
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import os |
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import shutil |
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import tempfile |
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def make_parent_dirs(file_path): |
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"""Creates parent directories for the file_path.""" |
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if os.path.exists(file_path): |
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return |
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parent_dir = os.path.dirname(file_path) |
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if parent_dir and not os.path.exists(parent_dir): |
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os.makedirs(parent_dir) |
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def filter_out(pattern_files, input_file): |
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""""Removes lines in input_file that match any line in pattern_files.""" |
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# Prepares patterns. |
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patterns = [] |
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for f in pattern_files: |
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patterns.extend(open(f).readlines()) |
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# Copy lines that are not in the pattern. |
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tmp_output = tempfile.NamedTemporaryFile() |
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with open(input_file, 'r') as in_file: |
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tmp_output.writelines(line for line in in_file.readlines() |
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if line not in patterns) |
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tmp_output.flush() |
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# Replaces the input_file. |
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shutil.copyfile(tmp_output.name, input_file)
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