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#!/usr/bin/env python
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# Copyright (c) 2015-2016 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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'''
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This checks if all command line args are documented.
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Return value is 0 to indicate no error.
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Author: @MarcoFalke
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'''
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from subprocess import check_output
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import re
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FOLDER_GREP = 'src'
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FOLDER_TEST = 'src/test/'
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CMD_ROOT_DIR = '`git rev-parse --show-toplevel`/%s' % FOLDER_GREP
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CMD_GREP_ARGS = r"egrep -r -I '(map(Multi)?Args(\.count\(|\[)|Get(Bool)?Arg\()\"\-[^\"]+?\"' %s | grep -v '%s'" % (CMD_ROOT_DIR, FOLDER_TEST)
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CMD_GREP_DOCS = r"egrep -r -I 'HelpMessageOpt\(\"\-[^\"=]+?(=|\")' %s" % (CMD_ROOT_DIR)
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REGEX_ARG = re.compile(r'(?:map(?:Multi)?Args(?:\.count\(|\[)|Get(?:Bool)?Arg\()\"(\-[^\"]+?)\"')
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REGEX_DOC = re.compile(r'HelpMessageOpt\(\"(\-[^\"=]+?)(?:=|\")')
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# list unsupported, deprecated and duplicate args as they need no documentation
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SET_DOC_OPTIONAL = set(['-rpcssl', '-benchmark', '-h', '-help', '-socks', '-tor', '-debugnet', '-whitelistalwaysrelay', '-prematurewitness', '-walletprematurewitness', '-promiscuousmempoolflags', '-blockminsize', '-sendfreetransactions'])
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def main():
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used = check_output(CMD_GREP_ARGS, shell=True)
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docd = check_output(CMD_GREP_DOCS, shell=True)
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args_used = set(re.findall(REGEX_ARG,used))
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args_docd = set(re.findall(REGEX_DOC,docd)).union(SET_DOC_OPTIONAL)
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args_need_doc = args_used.difference(args_docd)
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args_unknown = args_docd.difference(args_used)
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print "Args used : %s" % len(args_used)
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print "Args documented : %s" % len(args_docd)
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print "Args undocumented: %s" % len(args_need_doc)
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print args_need_doc
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print "Args unknown : %s" % len(args_unknown)
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print args_unknown
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exit(len(args_need_doc))
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if __name__ == "__main__":
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main()
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