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56 lines
1.8 KiB
Python
56 lines
1.8 KiB
Python
#
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# Copyright (c) Contributors to the Open 3D Engine Project.
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# For complete copyright and license terms please see the LICENSE at the root of this distribution.
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#
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# SPDX-License-Identifier: Apache-2.0 OR MIT
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#
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#
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import argparse
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import pickle
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import sys
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"""This is a command-line entry point which, when given two snapshots created using make_snapshot.py
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compares them and reports on the differences. It returns 0 if and only if there are no differences.
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To use it in a scripting environment instead of a CLI, invoke do_compare(filename1, filename2)
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Or do it manually using FolderSnapshot.CompareSnapshots and then enumerate_changes
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"""
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ignore_patterns = []
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from snapshot_folder.snapshot_folder import FolderSnapshot, SnapshotComparison
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def do_compare(filename1, filename2):
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"""Given two filenames, returns the diffs as a list of tuples [(type, file)]"""
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snap1 = pickle.load(open(filename1, 'rb'))
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snap2 = pickle.load(open(filename2, 'rb'))
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comparison = FolderSnapshot.CompareSnapshots(snap1, snap2)
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changes = [change_entry for change_entry in comparison.enumerate_changes()]
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return changes
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def init_parser():
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"""Prepares the command line parser"""
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parser = argparse.ArgumentParser()
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parser.description = "Compares two snapshots previously saved, outputs the changes. Exit code is 0 if no diff, 1 otherwise."
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parser.add_argument('first', default='.', help='first file to use')
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parser.add_argument('second', default='.', help='second file to use')
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return parser
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def main():
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parser = init_parser()
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args = parser.parse_args()
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changes = do_compare(args.first, args.second)
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for change in changes:
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print(f"Change detected: {change}")
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if changes:
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return 1
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return 0
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if __name__ == '__main__':
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sys.exit(main()) |