09ebffbb9e
This script is capable of setting the change date and not just updating a specific one. It looks for " Change Date: .*" in the first 20 lines of file and replaces whatever follows "Change Date: " with the specified change date. If provided with a directory, it will walk the directory hierarchy and recursively set the change date in all files.
117 lines
3.4 KiB
Python
Executable File
117 lines
3.4 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright (c) 2018 MariaDB Corporation Ab
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#
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# Use of this software is governed by the Business Source License included
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# in the LICENSE.TXT file and at www.mariadb.com/bsl11.
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#
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# Change Date: 2024-06-02
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#
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# On the date above, in accordance with the Business Source License, use
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# of this software will be governed by version 2 or later of the General
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# Public License.
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#
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import getopt
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import os
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import re
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import shutil
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import sys
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import tempfile
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# A string literal would be a match and cause an unintended modification.
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pattern=" " + "Change Date:" + " .*"
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# The Change Date should be in the blurb at the beginning. We will not
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# do modifications after this threshold.
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line_threshold=20
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recd=re.compile(pattern)
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def print_usage_and_exit(name, code):
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print("usage: " + name + " -c change-date [path]+")
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print()
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print("If path is a directory, the change date will recursively be set in all ")
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print("files in that directory hierarchy.")
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sys.exit(code)
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def update_change_date_in_file(changedate, filename):
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print(filename)
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tmp=tempfile.mkstemp()
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fout=os.fdopen(tmp[0], "w")
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with open(filename) as fin:
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modified=False
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try:
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line=fin.readline()
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line_number=1
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while line:
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match=recd.search(line)
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if match:
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if line_number <= line_threshold:
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# 14 is the length of the pattern up until ".*", that is, we pick of the line
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# up until the current change date.
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line=line[0:match.span()[0] + 14] + changedate + "\n"
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modified=True
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else:
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print("WARNING: Ignoring 'Change Date' encountered on line " + str(line_number) + ".")
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fout.write(line)
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line = fin.readline()
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line_number=line_number + 1
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except UnicodeDecodeError:
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print("WARNING: Could not decode file, ignoring.")
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modified=False
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except:
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print("WARNING: Could not read file, ignoring.")
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modified=False
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fin.close()
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fout.close()
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if modified:
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shutil.copyfile(tmp[1], filename)
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os.remove(tmp[1])
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def update_change_date_in_dir(changedate, dir):
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for file in os.listdir(dir):
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path=dir + "/" + file
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update_change_date_in_path(changedate, path)
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def update_change_date_in_path(changedate, path):
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if not os.path.exists(path):
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print("WARNING: " + path + " does not exist.")
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elif os.path.isdir(path):
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update_change_date_in_dir(changedate, path)
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elif os.path.isfile(path):
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update_change_date_in_file(changedate, path)
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else:
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print("WARNING: '" + path + "' is not a regular file or directory, ignoring.")
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def update_change_date_in_paths(changedate, paths):
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for path in paths:
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update_change_date_in_path(changedate, path)
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def main(argv):
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name=argv[0]
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try:
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opts, args = getopt.getopt(argv[1:], "hc:")
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except getopt.GetoptError:
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print_usage_and_exit(name, 1)
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changedate=''
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for opt, arg in opts:
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if opt == '-h':
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print_usage_and_exit(name, 0)
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elif opt == '-c':
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changedate = arg
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if changedate == '':
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print_usage_and_exit(name, 1)
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update_change_date_in_paths(changedate, args)
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if __name__ == "__main__":
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main(sys.argv)
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