mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-12-23 01:55:48 -05:00
299 lines
9.6 KiB
Python
299 lines
9.6 KiB
Python
#!/usr/bin/python
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"""
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Utility to generate copyright notices from the git history of the source file
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Inspired by: https://0pointer.net/blog/projects/copyright.html
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"""
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import sys
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import os
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import functools
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from subprocess import *
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from datetime import *
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from optparse import OptionParser
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AUTHOR_SUBSTITUTES = {
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"ZigaS": "Ziga S",
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"hexameron": "John Greb",
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"srcejon": "Jon Beniston, M7RCE",
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"Jon Beniston": "Jon Beniston, M7RCE",
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"f4exb": "Edouard Griffiths, F4EXB",
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"Edouard Griffiths": "Edouard Griffiths, F4EXB"
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}
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# Commits rewriting the copyright notices
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EXCLUDE_HASHES = {
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"c9e13c336",
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"e61317ef0",
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"65842d9b5",
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"00b041d76",
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"3a944fa20",
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"b6c4d10b6",
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"869f1a419",
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"743260db9",
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"9ce0810a2",
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"3596fe431"
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}
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# ======================================================================
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def getInputOptions():
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parser = OptionParser(usage="usage: %%prog options\n\n%s")
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parser.add_option("-f", "--file", dest="file", help="File to process", metavar="FILE", type="str")
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parser.add_option("-d", "--directory", dest="directory", help="Directory to process", metavar="DIRECTORY", type="str")
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parser.add_option("-e", "--extension", dest="extensions", help="Filter by this extension (includes dot)", metavar="EXTENSION", type="str", action="append")
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parser.add_option("-l", "--list-authors", dest="list_authors", help="List authors", metavar="LIST", action="store_true", default=False)
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parser.add_option("-r", "--remove-original", dest="remove_original", help="Remove original copyright notices", metavar="REMOVE", action="store_true", default=False)
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parser.add_option("-n", "--dry-run", dest="dry_run", help="Print new headers instead of overwriting the files", metavar="DRY_RUN", action="store_true", default=False)
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(options, args) = parser.parse_args()
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return options
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# ======================================================================
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def validate_options(options):
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if options.file is None and options.directory is None:
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print("At least a file (-f) or a directory (-d) must be specified")
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return False
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elif options.file is not None and options.directory is not None:
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print("Specify either a file (-f) or a directory (-d) but not both")
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return False
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if not options.extensions:
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options.extensions = [".h", ".cpp"]
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return True
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# ======================================================================
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def pretty_years(s):
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l = list(s)
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l.sort()
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start = None
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prev = None
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r = []
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for x in l:
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if prev is None:
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start = x
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prev = x
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continue
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if x == prev + 1:
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prev = x
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continue
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if prev == start:
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r.append("%i" % prev)
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else:
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r.append("%i-%i" % (start, prev))
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start = x
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prev = x
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if not prev is None:
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if prev == start:
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r.append("%i" % prev)
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else:
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r.append("%i-%i" % (start, prev))
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return ", ".join(r)
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# ======================================================================
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def order_by_year(a, b):
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la = list(a[2])
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la.sort()
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lb = list(b[2])
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lb.sort()
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if la[0] < lb[0]:
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return -1
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elif la[0] > lb[0]:
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return 1
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else:
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return 0
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# ======================================================================
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def analyze(f):
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print(f"File: {f}")
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commits = []
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data = {}
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for ln in Popen(["git", "log", "--follow", "--all", "--date=format:'%Y-%m-%d %H:%M:%S,%z'", "--pretty=format:'%an,%ae,%ad,%h'", f], stdout=PIPE).stdout:
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ls = ln.decode().strip()
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le = ls.split(',') # Line elements (comma separated)
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lh = le[4].rstrip("\'")
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if lh in EXCLUDE_HASHES:
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continue
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dt = datetime.strptime(le[2].lstrip("\'"), '%Y-%m-%d %H:%M:%S')
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tz = le[3].rstrip("\'")
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data = {
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"author": le[0].lstrip("\'"),
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"author-mail": le[1],
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"author-time": int(datetime.timestamp(dt)),
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"author-tz": tz
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}
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if data["author"] == "Hexameron":
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data["author-time"] = int(datetime.timestamp(datetime(2012, 1, 1)))
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if data["author"] in AUTHOR_SUBSTITUTES:
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data["author"] = AUTHOR_SUBSTITUTES[data["author"]]
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commits.append(data)
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by_author = {}
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for c in commits:
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try:
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n = by_author[c["author"]]
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except KeyError:
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n = (c["author"], c["author-mail"], set())
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by_author[c["author"]] = n
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# FIXME: Handle time zones properly
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year = datetime.fromtimestamp(int(c["author-time"])).year
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n[2].add(year)
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for an, a in list(by_author.items()):
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for bn, b in list(by_author.items()):
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if a is b:
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continue
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if a[1] == b[1]:
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a[2].update(b[2])
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if an in by_author and bn in by_author:
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del by_author[bn]
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copyrite = list(by_author.values())
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copyrite.sort(key=functools.cmp_to_key(order_by_year))
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return copyrite
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# ======================================================================
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def get_files(options):
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files = []
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dirs = os.walk(options.directory)
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for dirspec in dirs:
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for f in dirspec[2]:
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filepath = os.path.join(dirspec[0], f)
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ext = os.path.splitext(filepath)[1]
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if ext in options.extensions:
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files.append(filepath)
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return files
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# ======================================================================
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def list_authors(options):
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authors = set()
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if options.directory is not None:
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files = get_files(options)
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for f in files:
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copyrite = analyze(f)
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for c in copyrite:
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authors.add(c[0])
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for author in authors:
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print(author)
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return
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copyrite = analyze(options.file)
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for c in copyrite:
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print(c[0])
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# ======================================================================
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def remove_line(line):
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if "Copyright (C)" in line:
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return True
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if "Copyright (c)" in line:
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return True
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if line.startswith("// written by"):
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return True
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# ======================================================================
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def get_header_lines():
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return [
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"",
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"This program is free software; you can redistribute it and/or modify",
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"it under the terms of the GNU General Public License as published by",
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"the Free Software Foundation as version 3 of the License, or",
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"(at your option) any later version.",
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"",
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"This program 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",
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"GNU General Public License V3 for more details.",
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"",
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"You should have received a copy of the GNU General Public License",
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"along with this program. If not, see <http://www.gnu.org/licenses/>."
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]
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# ======================================================================
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def process_file(f, options):
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with open(f) as ff:
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lines_in = [line.rstrip() for line in ff]
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lines_out = []
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cr = analyze(f)
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header = False
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header_start = 0
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for iline, line in enumerate(lines_in):
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if line.startswith("////////"):
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header= True
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header_start = iline
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break
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if header:
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lines_out = lines_in[:header_start+1]
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else:
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lines_out = ["///////////////////////////////////////////////////////////////////////////////////////"]
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width = len(lines_out[header_start]) - 6
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for name, mail, years in cr:
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if name == "Hexameron":
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lines_out.append("// {0:{1}} //".format("Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany", width))
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lines_out.append("// {0:{1}} //".format("written by Christian Daniel", width))
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else:
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cr_string = f"Copyright (C) {pretty_years(years)} {name} <{mail}>"
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lines_out.append(f"// {cr_string:{width}} //")
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if not header:
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for hline in get_header_lines():
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lines_out.append("// {0:{1}} //".format(hline, width))
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lines_out.append(lines_out[0])
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elif not options.remove_original:
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lines_out.append("")
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in_header = header
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header_stop = len(lines_out)
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iread = header_start+1 if header else 0
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for iline, line in enumerate(lines_in[iread:]):
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if in_header and options.remove_original and remove_line(line):
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continue
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if line.startswith("////////"):
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in_header = False
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header_stop += iline
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lines_out.append(line)
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if options.dry_run:
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for line_out in lines_out[header_start:header_stop]:
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print(line_out)
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else:
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with open(f, "w") as ff:
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for line in lines_out:
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ff.write(f"{line}\n")
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# ======================================================================
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def process_directory(options):
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files = get_files(options)
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for f in files:
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process_file(f, options)
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# ======================================================================
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def main():
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try:
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options = getInputOptions()
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if not validate_options(options):
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sys.exit(-1)
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if options.list_authors:
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list_authors(options)
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elif options.file:
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process_file(options.file, options)
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else:
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process_directory(options)
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except KeyboardInterrupt:
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print("Keyboard interrupt. Exiting")
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# ======================================================================
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if __name__ == '__main__':
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main()
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