159597a2b8
Three subcommands to this script: 1) ./copyright_header.py report Examines git-tracked files with extensions that match: INCLUDE = ['*.h', '*.cpp', '*.cc', '*.c', '*.py'] Helps to: -> Identify source files without copyright -> Identify source files added with something other than "The Bitcoin Core developers" holder so we can be sure it is appropriate -> Identify unintentional typos in the copyright line 2) ./copyright_header.py update Replaces fix-copyright-headers.py. It does file editing in native python rather than subprocessing out to perl as was the case with fix-copyright-headers.py. It also shares code with the 'report' functions. 3) ./copyright_header.py insert Inserts a copyright header into a source file with the proper format and dates.
610 lines
22 KiB
Python
Executable file
610 lines
22 KiB
Python
Executable file
#!/usr/bin/env python3
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# Copyright (c) 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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import re
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import fnmatch
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import sys
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import subprocess
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import datetime
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import os
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################################################################################
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# file filtering
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################################################################################
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EXCLUDE = [
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# libsecp256k1:
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'src/secp256k1/include/secp256k1.h',
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'src/secp256k1/include/secp256k1_ecdh.h',
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'src/secp256k1/include/secp256k1_recovery.h',
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'src/secp256k1/include/secp256k1_schnorr.h',
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'src/secp256k1/src/java/org_bitcoin_NativeSecp256k1.c',
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'src/secp256k1/src/java/org_bitcoin_NativeSecp256k1.h',
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'src/secp256k1/src/java/org_bitcoin_Secp256k1Context.c',
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'src/secp256k1/src/java/org_bitcoin_Secp256k1Context.h',
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# auto generated:
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'src/univalue/lib/univalue_escapes.h',
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'src/qt/bitcoinstrings.cpp',
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'src/chainparamsseeds.h',
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# other external copyrights:
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'src/tinyformat.h',
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'src/leveldb/util/env_win.cc',
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'src/crypto/ctaes/bench.c',
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'qa/rpc-tests/test_framework/bignum.py',
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# python init:
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'*__init__.py',
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]
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EXCLUDE_COMPILED = re.compile('|'.join([fnmatch.translate(m) for m in EXCLUDE]))
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INCLUDE = ['*.h', '*.cpp', '*.cc', '*.c', '*.py']
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INCLUDE_COMPILED = re.compile('|'.join([fnmatch.translate(m) for m in INCLUDE]))
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def applies_to_file(filename):
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return ((EXCLUDE_COMPILED.match(filename) is None) and
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(INCLUDE_COMPILED.match(filename) is not None))
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################################################################################
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# obtain list of files in repo according to INCLUDE and EXCLUDE
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################################################################################
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GIT_LS_CMD = 'git ls-files'
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def call_git_ls():
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out = subprocess.check_output(GIT_LS_CMD.split(' '))
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return [f for f in out.decode("utf-8").split('\n') if f != '']
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def get_filenames_to_examine():
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filenames = call_git_ls()
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return sorted([filename for filename in filenames if
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applies_to_file(filename)])
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################################################################################
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# define and compile regexes for the patterns we are looking for
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################################################################################
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COPYRIGHT_WITH_C = 'Copyright \(c\)'
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COPYRIGHT_WITHOUT_C = 'Copyright'
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ANY_COPYRIGHT_STYLE = '(%s|%s)' % (COPYRIGHT_WITH_C, COPYRIGHT_WITHOUT_C)
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YEAR = "20[0-9][0-9]"
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YEAR_RANGE = '(%s)(-%s)?' % (YEAR, YEAR)
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YEAR_LIST = '(%s)(, %s)+' % (YEAR, YEAR)
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ANY_YEAR_STYLE = '(%s|%s)' % (YEAR_RANGE, YEAR_LIST)
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ANY_COPYRIGHT_STYLE_OR_YEAR_STYLE = ("%s %s" % (ANY_COPYRIGHT_STYLE,
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ANY_YEAR_STYLE))
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ANY_COPYRIGHT_COMPILED = re.compile(ANY_COPYRIGHT_STYLE_OR_YEAR_STYLE)
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def compile_copyright_regex(copyright_style, year_style, name):
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return re.compile('%s %s %s' % (copyright_style, year_style, name))
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EXPECTED_HOLDER_NAMES = [
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"Satoshi Nakamoto\n",
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"The Bitcoin Core developers\n",
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"The Bitcoin Core developers \n",
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"Bitcoin Core Developers\n",
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"the Bitcoin Core developers\n",
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"The Bitcoin developers\n",
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"The LevelDB Authors\. All rights reserved\.\n",
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"BitPay Inc\.\n",
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"BitPay, Inc\.\n",
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"University of Illinois at Urbana-Champaign\.\n",
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"MarcoFalke\n",
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"Pieter Wuille\n",
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"Pieter Wuille +\*\n",
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"Pieter Wuille, Gregory Maxwell +\*\n",
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"Pieter Wuille, Andrew Poelstra +\*\n",
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"Andrew Poelstra +\*\n",
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"Wladimir J. van der Laan\n",
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"Jeff Garzik\n",
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"Diederik Huys, Pieter Wuille +\*\n",
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"Thomas Daede, Cory Fields +\*\n",
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"Jan-Klaas Kollhof\n",
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"Sam Rushing\n",
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"ArtForz -- public domain half-a-node\n",
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]
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DOMINANT_STYLE_COMPILED = {}
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YEAR_LIST_STYLE_COMPILED = {}
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WITHOUT_C_STYLE_COMPILED = {}
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for holder_name in EXPECTED_HOLDER_NAMES:
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DOMINANT_STYLE_COMPILED[holder_name] = (
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compile_copyright_regex(COPYRIGHT_WITH_C, YEAR_RANGE, holder_name))
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YEAR_LIST_STYLE_COMPILED[holder_name] = (
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compile_copyright_regex(COPYRIGHT_WITH_C, YEAR_LIST, holder_name))
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WITHOUT_C_STYLE_COMPILED[holder_name] = (
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compile_copyright_regex(COPYRIGHT_WITHOUT_C, ANY_YEAR_STYLE,
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holder_name))
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################################################################################
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# search file contents for copyright message of particular category
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################################################################################
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def get_count_of_copyrights_of_any_style_any_holder(contents):
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return len(ANY_COPYRIGHT_COMPILED.findall(contents))
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def file_has_dominant_style_copyright_for_holder(contents, holder_name):
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match = DOMINANT_STYLE_COMPILED[holder_name].search(contents)
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return match is not None
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def file_has_year_list_style_copyright_for_holder(contents, holder_name):
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match = YEAR_LIST_STYLE_COMPILED[holder_name].search(contents)
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return match is not None
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def file_has_without_c_style_copyright_for_holder(contents, holder_name):
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match = WITHOUT_C_STYLE_COMPILED[holder_name].search(contents)
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return match is not None
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################################################################################
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# get file info
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################################################################################
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def read_file(filename):
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return open(os.path.abspath(filename), 'r').read()
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def gather_file_info(filename):
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info = {}
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info['filename'] = filename
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c = read_file(filename)
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info['contents'] = c
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info['all_copyrights'] = get_count_of_copyrights_of_any_style_any_holder(c)
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info['classified_copyrights'] = 0
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info['dominant_style'] = {}
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info['year_list_style'] = {}
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info['without_c_style'] = {}
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for holder_name in EXPECTED_HOLDER_NAMES:
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has_dominant_style = (
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file_has_dominant_style_copyright_for_holder(c, holder_name))
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has_year_list_style = (
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file_has_year_list_style_copyright_for_holder(c, holder_name))
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has_without_c_style = (
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file_has_without_c_style_copyright_for_holder(c, holder_name))
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info['dominant_style'][holder_name] = has_dominant_style
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info['year_list_style'][holder_name] = has_year_list_style
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info['without_c_style'][holder_name] = has_without_c_style
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if has_dominant_style or has_year_list_style or has_without_c_style:
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info['classified_copyrights'] = info['classified_copyrights'] + 1
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return info
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################################################################################
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# report execution
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################################################################################
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SEPARATOR = '-'.join(['' for _ in range(80)])
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def print_filenames(filenames, verbose):
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if not verbose:
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return
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for filename in filenames:
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print("\t%s" % filename)
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def print_report(file_infos, verbose):
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print(SEPARATOR)
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examined = [i['filename'] for i in file_infos]
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print("%d files examined according to INCLUDE and EXCLUDE fnmatch rules" %
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len(examined))
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print_filenames(examined, verbose)
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print(SEPARATOR)
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print('')
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zero_copyrights = [i['filename'] for i in file_infos if
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i['all_copyrights'] == 0]
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print("%4d with zero copyrights" % len(zero_copyrights))
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print_filenames(zero_copyrights, verbose)
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one_copyright = [i['filename'] for i in file_infos if
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i['all_copyrights'] == 1]
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print("%4d with one copyright" % len(one_copyright))
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print_filenames(one_copyright, verbose)
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two_copyrights = [i['filename'] for i in file_infos if
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i['all_copyrights'] == 2]
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print("%4d with two copyrights" % len(two_copyrights))
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print_filenames(two_copyrights, verbose)
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three_copyrights = [i['filename'] for i in file_infos if
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i['all_copyrights'] == 3]
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print("%4d with three copyrights" % len(three_copyrights))
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print_filenames(three_copyrights, verbose)
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four_or_more_copyrights = [i['filename'] for i in file_infos if
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i['all_copyrights'] >= 4]
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print("%4d with four or more copyrights" % len(four_or_more_copyrights))
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print_filenames(four_or_more_copyrights, verbose)
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print('')
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print(SEPARATOR)
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print('Copyrights with dominant style:\ne.g. "Copyright (c)" and '
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'"<year>" or "<startYear>-<endYear>":\n')
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for holder_name in EXPECTED_HOLDER_NAMES:
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dominant_style = [i['filename'] for i in file_infos if
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i['dominant_style'][holder_name]]
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if len(dominant_style) > 0:
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print("%4d with '%s'" % (len(dominant_style),
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holder_name.replace('\n', '\\n')))
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print_filenames(dominant_style, verbose)
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print('')
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print(SEPARATOR)
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print('Copyrights with year list style:\ne.g. "Copyright (c)" and '
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'"<year1>, <year2>, ...":\n')
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for holder_name in EXPECTED_HOLDER_NAMES:
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year_list_style = [i['filename'] for i in file_infos if
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i['year_list_style'][holder_name]]
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if len(year_list_style) > 0:
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print("%4d with '%s'" % (len(year_list_style),
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holder_name.replace('\n', '\\n')))
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print_filenames(year_list_style, verbose)
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print('')
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print(SEPARATOR)
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print('Copyrights with no "(c)" style:\ne.g. "Copyright" and "<year>" or '
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'"<startYear>-<endYear>":\n')
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for holder_name in EXPECTED_HOLDER_NAMES:
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without_c_style = [i['filename'] for i in file_infos if
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i['without_c_style'][holder_name]]
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if len(without_c_style) > 0:
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print("%4d with '%s'" % (len(without_c_style),
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holder_name.replace('\n', '\\n')))
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print_filenames(without_c_style, verbose)
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print('')
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print(SEPARATOR)
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unclassified_copyrights = [i['filename'] for i in file_infos if
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i['classified_copyrights'] < i['all_copyrights']]
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print("%d with unexpected copyright holder names" %
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len(unclassified_copyrights))
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print_filenames(unclassified_copyrights, verbose)
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print(SEPARATOR)
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def exec_report(base_directory, verbose):
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original_cwd = os.getcwd()
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os.chdir(base_directory)
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filenames = get_filenames_to_examine()
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file_infos = [gather_file_info(f) for f in filenames]
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print_report(file_infos, verbose)
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os.chdir(original_cwd)
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################################################################################
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# report cmd
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################################################################################
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REPORT_USAGE = """
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Produces a report of all copyright header notices found inside the source files
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of a repository.
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Usage:
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$ ./copyright_header.py report <base_directory> [verbose]
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Arguments:
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<base_directory> - The base directory of a bitcoin source code repository.
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[verbose] - Includes a list of every file of each subcategory in the report.
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"""
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def report_cmd(argv):
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if len(argv) == 2:
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sys.exit(REPORT_USAGE)
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base_directory = argv[2]
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if not os.path.exists(base_directory):
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sys.exit("*** bad <base_directory>: %s" % base_directory)
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if len(argv) == 3:
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verbose = False
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elif argv[3] == 'verbose':
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verbose = True
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else:
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sys.exit("*** unknown argument: %s" % argv[2])
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exec_report(base_directory, verbose)
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################################################################################
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# query git for year of last change
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################################################################################
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GIT_LOG_CMD = "git log --pretty=format:%%ai %s"
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def call_git_log(filename):
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out = subprocess.check_output((GIT_LOG_CMD % filename).split(' '))
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return out.decode("utf-8").split('\n')
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def get_git_change_years(filename):
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git_log_lines = call_git_log(filename)
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if len(git_log_lines) == 0:
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return [datetime.date.today().year]
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# timestamp is in ISO 8601 format. e.g. "2016-09-05 14:25:32 -0600"
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return [line.split(' ')[0].split('-')[0] for line in git_log_lines]
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def get_most_recent_git_change_year(filename):
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return max(get_git_change_years(filename))
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################################################################################
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# read and write to file
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################################################################################
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def read_file_lines(filename):
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f = open(os.path.abspath(filename), 'r')
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file_lines = f.readlines()
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f.close()
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return file_lines
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def write_file_lines(filename, file_lines):
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f = open(os.path.abspath(filename), 'w')
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f.write(''.join(file_lines))
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f.close()
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################################################################################
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# update header years execution
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################################################################################
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COPYRIGHT = 'Copyright \(c\)'
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YEAR = "20[0-9][0-9]"
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YEAR_RANGE = '(%s)(-%s)?' % (YEAR, YEAR)
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HOLDER = 'The Bitcoin Core developers'
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UPDATEABLE_LINE_COMPILED = re.compile(' '.join([COPYRIGHT, YEAR_RANGE, HOLDER]))
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def get_updatable_copyright_line(file_lines):
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index = 0
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for line in file_lines:
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if UPDATEABLE_LINE_COMPILED.search(line) is not None:
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return index, line
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index = index + 1
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return None, None
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def parse_year_range(year_range):
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year_split = year_range.split('-')
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start_year = year_split[0]
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if len(year_split) == 1:
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return start_year, start_year
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return start_year, year_split[1]
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def year_range_to_str(start_year, end_year):
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if start_year == end_year:
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return start_year
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return "%s-%s" % (start_year, end_year)
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def create_updated_copyright_line(line, last_git_change_year):
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copyright_splitter = 'Copyright (c) '
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copyright_split = line.split(copyright_splitter)
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# Preserve characters on line that are ahead of the start of the copyright
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# notice - they are part of the comment block and vary from file-to-file.
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before_copyright = copyright_split[0]
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after_copyright = copyright_split[1]
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space_split = after_copyright.split(' ')
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year_range = space_split[0]
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start_year, end_year = parse_year_range(year_range)
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if end_year == last_git_change_year:
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return line
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return (before_copyright + copyright_splitter +
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year_range_to_str(start_year, last_git_change_year) + ' ' +
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' '.join(space_split[1:]))
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def update_updatable_copyright(filename):
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file_lines = read_file_lines(filename)
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index, line = get_updatable_copyright_line(file_lines)
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if not line:
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print_file_action_message(filename, "No updatable copyright.")
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return
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last_git_change_year = get_most_recent_git_change_year(filename)
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new_line = create_updated_copyright_line(line, last_git_change_year)
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if line == new_line:
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print_file_action_message(filename, "Copyright up-to-date.")
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return
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file_lines[index] = new_line
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write_file_lines(filename, file_lines)
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print_file_action_message(filename,
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"Copyright updated! -> %s" % last_git_change_year)
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def exec_update_header_year(base_directory):
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original_cwd = os.getcwd()
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os.chdir(base_directory)
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for filename in get_filenames_to_examine():
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update_updatable_copyright(filename)
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os.chdir(original_cwd)
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################################################################################
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# update cmd
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################################################################################
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UPDATE_USAGE = """
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Updates all the copyright headers of "The Bitcoin Core developers" which were
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changed in a year more recent than is listed. For example:
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// Copyright (c) <firstYear>-<lastYear> The Bitcoin Core developers
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will be updated to:
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// Copyright (c) <firstYear>-<lastModifiedYear> The Bitcoin Core developers
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where <lastModifiedYear> is obtained from the 'git log' history.
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This subcommand also handles copyright headers that have only a single year. In those cases:
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// Copyright (c) <year> The Bitcoin Core developers
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will be updated to:
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// Copyright (c) <year>-<lastModifiedYear> The Bitcoin Core developers
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where the update is appropriate.
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Usage:
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$ ./copyright_header.py update <base_directory>
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Arguments:
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<base_directory> - The base directory of a bitcoin source code repository.
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"""
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def print_file_action_message(filename, action):
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print("%-52s %s" % (filename, action))
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def update_cmd(argv):
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if len(argv) != 3:
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sys.exit(UPDATE_USAGE)
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base_directory = argv[2]
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if not os.path.exists(base_directory):
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sys.exit("*** bad base_directory: %s" % base_directory)
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exec_update_header_year(base_directory)
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################################################################################
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# inserted copyright header format
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################################################################################
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def get_header_lines(header, start_year, end_year):
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lines = header.split('\n')[1:-1]
|
|
lines[0] = lines[0] % year_range_to_str(start_year, end_year)
|
|
return [line + '\n' for line in lines]
|
|
|
|
CPP_HEADER = '''
|
|
// Copyright (c) %s The Bitcoin Core developers
|
|
// Distributed under the MIT software license, see the accompanying
|
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
'''
|
|
|
|
def get_cpp_header_lines_to_insert(start_year, end_year):
|
|
return reversed(get_header_lines(CPP_HEADER, start_year, end_year))
|
|
|
|
PYTHON_HEADER = '''
|
|
# Copyright (c) %s The Bitcoin Core developers
|
|
# Distributed under the MIT software license, see the accompanying
|
|
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
|
'''
|
|
|
|
def get_python_header_lines_to_insert(start_year, end_year):
|
|
return reversed(get_header_lines(PYTHON_HEADER, start_year, end_year))
|
|
|
|
################################################################################
|
|
# query git for year of last change
|
|
################################################################################
|
|
|
|
def get_git_change_year_range(filename):
|
|
years = get_git_change_years(filename)
|
|
return min(years), max(years)
|
|
|
|
################################################################################
|
|
# check for existing core copyright
|
|
################################################################################
|
|
|
|
def file_already_has_core_copyright(file_lines):
|
|
index, _ = get_updatable_copyright_line(file_lines)
|
|
return index != None
|
|
|
|
################################################################################
|
|
# insert header execution
|
|
################################################################################
|
|
|
|
def file_has_hashbang(file_lines):
|
|
if len(file_lines) < 1:
|
|
return False
|
|
if len(file_lines[0]) <= 2:
|
|
return False
|
|
return file_lines[0][:2] == '#!'
|
|
|
|
def insert_python_header(filename, file_lines, start_year, end_year):
|
|
if file_has_hashbang(file_lines):
|
|
insert_idx = 1
|
|
else:
|
|
insert_idx = 0
|
|
header_lines = get_python_header_lines_to_insert(start_year, end_year)
|
|
for line in header_lines:
|
|
file_lines.insert(insert_idx, line)
|
|
write_file_lines(filename, file_lines)
|
|
|
|
def insert_cpp_header(filename, file_lines, start_year, end_year):
|
|
header_lines = get_cpp_header_lines_to_insert(start_year, end_year)
|
|
for line in header_lines:
|
|
file_lines.insert(0, line)
|
|
write_file_lines(filename, file_lines)
|
|
|
|
def exec_insert_header(filename, style):
|
|
file_lines = read_file_lines(filename)
|
|
if file_already_has_core_copyright(file_lines):
|
|
sys.exit('*** %s already has a copyright by The Bitcoin Core developers'
|
|
% (filename))
|
|
start_year, end_year = get_git_change_year_range(filename)
|
|
if style == 'python':
|
|
insert_python_header(filename, file_lines, start_year, end_year)
|
|
else:
|
|
insert_cpp_header(filename, file_lines, start_year, end_year)
|
|
|
|
################################################################################
|
|
# insert cmd
|
|
################################################################################
|
|
|
|
INSERT_USAGE = """
|
|
Inserts a copyright header for "The Bitcoin Core developers" at the top of the
|
|
file in either Python or C++ style as determined by the file extension. If the
|
|
file is a Python file and it has a '#!' starting the first line, the header is
|
|
inserted in the line below it.
|
|
|
|
The copyright dates will be set to be:
|
|
|
|
"<year_introduced>-<current_year>"
|
|
|
|
where <year_introduced> is according to the 'git log' history. If
|
|
<year_introduced> is equal to <current_year>, the date will be set to be:
|
|
|
|
"<current_year>"
|
|
|
|
If the file already has a copyright for "The Bitcoin Core developers", the
|
|
script will exit.
|
|
|
|
Usage:
|
|
$ ./copyright_header.py insert <file>
|
|
|
|
Arguments:
|
|
<file> - A source file in the bitcoin repository.
|
|
"""
|
|
|
|
def insert_cmd(argv):
|
|
if len(argv) != 3:
|
|
sys.exit(INSERT_USAGE)
|
|
|
|
filename = argv[2]
|
|
if not os.path.isfile(filename):
|
|
sys.exit("*** bad filename: %s" % filename)
|
|
_, extension = os.path.splitext(filename)
|
|
if extension not in ['.h', '.cpp', '.cc', '.c', '.py']:
|
|
sys.exit("*** cannot insert for file extension %s" % extension)
|
|
|
|
if extension == '.py':
|
|
style = 'python'
|
|
else:
|
|
style = 'cpp'
|
|
exec_insert_header(filename, style)
|
|
|
|
################################################################################
|
|
# UI
|
|
################################################################################
|
|
|
|
USAGE = """
|
|
copyright_header.py - utilities for managing copyright headers of 'The Bitcoin
|
|
Core developers' in repository source files.
|
|
|
|
Usage:
|
|
$ ./copyright_header <subcommand>
|
|
|
|
Subcommands:
|
|
report
|
|
update
|
|
insert
|
|
|
|
To see subcommand usage, run them without arguments.
|
|
"""
|
|
|
|
SUBCOMMANDS = ['report', 'update', 'insert']
|
|
|
|
if __name__ == "__main__":
|
|
if len(sys.argv) == 1:
|
|
sys.exit(USAGE)
|
|
subcommand = sys.argv[1]
|
|
if subcommand not in SUBCOMMANDS:
|
|
sys.exit(USAGE)
|
|
if subcommand == 'report':
|
|
report_cmd(sys.argv)
|
|
elif subcommand == 'update':
|
|
update_cmd(sys.argv)
|
|
elif subcommand == 'insert':
|
|
insert_cmd(sys.argv)
|