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This is particularly useful on operating systems that don't ship Python as part of the base system (eg. FreeBSD) while still working just as well as it did before on Linux. While at it, make it explicit that our scripts are only going to work with Python 2, and remove the usage of unbuffered I/O, which as far as I can tell has no effect on the output files. Signed-off-by: Andrea Bolognani <abologna@redhat.com>
105 lines
2.8 KiB
Python
Executable File
105 lines
2.8 KiB
Python
Executable File
#!/usr/bin/env python2
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# reformat-news.py: Reformat the NEWS file properly
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#
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# Copyright (C) 2017 Red Hat, Inc.
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library. If not, see
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# <http://www.gnu.org/licenses/>.
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#
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# Authors:
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# Andrea Bolognani <abologna@redhat.com>
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import sys
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COLUMNS = 80
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def reformat_with_indent(text, initial_indent, indent):
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res = ""
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line = initial_indent
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for word in text.split():
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# If adding one more word (plus a whitespace, plus a newline)
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# to the current line would push us over the desired number
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# of columns we start a new line instead
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if len(line) + len(word) > (COLUMNS - 2):
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res = res + line + "\n"
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line = indent
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# We need to take care when we've just started a new line,
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# as we don't want to add any additional leading whitespace
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# in that case
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if line == indent or line == initial_indent:
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line = line + word
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else:
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line = line + " " + word
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# Append whatever's left
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res = res + line
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return res
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def reformat(line):
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# Empty lines don't need to be reformatted or even inspected
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if len(line) == 0:
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return line
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# For all non-empty lines, we decide the indentation level based
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# on the first character
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marker = line[0]
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# Release
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if marker == '#':
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initial_indent = 0
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indent = 2
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# Section
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elif marker == '*':
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initial_indent = 2
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indent = 4
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# Change summary
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elif marker == '-':
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initial_indent = 4
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indent = 6
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# Change description
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elif marker == '|':
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initial_indent = 8
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indent = 8
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# In this one case, the marker should not ultimately show
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# up in the output file, so we strip it before moving on
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line = line[1:]
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# Anything else should be left as-is
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else:
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return line
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return reformat_with_indent(line, " " * initial_indent, " " * indent)
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def main(args):
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if len(args) < 2:
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sys.stdout.write("Usage: " + args[0] + " FILE\n")
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sys.exit(1)
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with open(args[1], 'r') as f:
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for line in f:
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print(reformat(line.strip()))
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if __name__ == "__main__":
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main(sys.argv)
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