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#!/usr/bin/env python3
# This uses the output from "support/git-set-file-times --list" to discern
# the last-modified year of each *.c & *.h file and updates the copyright
# year if it isn't set right.
import sys, os, re, argparse, subprocess
from datetime import datetime
MAINTAINER_NAME = 'Wayne Davison'
MAINTAINER_SUF = ' ' + MAINTAINER_NAME + "\n"
def main():
latest_year = '2000'
proc = subprocess.Popen('support/git-set-file-times --list'.split(), stdout=subprocess.PIPE, encoding='utf-8')
for line in proc.stdout:
m = re.match(r'^\S\s+(?P<year>\d\d\d\d)\S+\s+\S+\s+(?P<fn>.+)', line)
if not m:
print("Failed to parse line from git-set-file-times:", line)
sys.exit(1)
m = argparse.Namespace(**m.groupdict())
if m.year > latest_year:
latest_year = m.year
if m.fn.startswith('zlib/') or m.fn.startswith('popt/'):
continue
if re.search(r'\.(c|h|sh|test)$', m.fn):
maybe_edit_copyright_year(m.fn, m.year)
proc.communicate()
fn = 'latest-year.h'
with open(fn, 'r', encoding='utf-8') as fh:
old_txt = fh.read()
txt = f'#define LATEST_YEAR "{latest_year}"\n'
if txt != old_txt:
print(f"Updating {fn} with year {latest_year}")
with open(fn, 'w', encoding='utf-8') as fh:
fh.write(txt)
def maybe_edit_copyright_year(fn, year):
opening_lines = [ ]
copyright_line = None
with open(fn, 'r', encoding='utf-8') as fh:
for lineno, line in enumerate(fh):
opening_lines.append(line)
if lineno > 3 and not re.search(r'\S', line):
break
m = re.match(r'^(?P<pre>.*Copyright\s+\S+\s+)(?P<year>\d\d\d\d(?:-\d\d\d\d)?(,\s+\d\d\d\d)*)(?P<suf>.+)', line)
if not m:
continue
copyright_line = argparse.Namespace(**m.groupdict())
copyright_line.lineno = len(opening_lines)
copyright_line.is_maintainer_line = MAINTAINER_NAME in copyright_line.suf
copyright_line.txt = line
if copyright_line.is_maintainer_line:
break
if not copyright_line:
return
if copyright_line.is_maintainer_line:
cyears = copyright_line.year.split('-')
if year == cyears[0]:
cyears = [ year ]
else:
cyears = [ cyears[0], year ]
txt = copyright_line.pre + '-'.join(cyears) + MAINTAINER_SUF
if txt == copyright_line.txt:
return
opening_lines[copyright_line.lineno - 1] = txt
else:
if fn.startswith('lib/') or fn.startswith('testsuite/'):
return
txt = copyright_line.pre + year + MAINTAINER_SUF
opening_lines[copyright_line.lineno - 1] += txt
remaining_txt = fh.read()
print(f"Updating {fn} with year {year}")
with open(fn, 'w', encoding='utf-8') as fh:
fh.write(''.join(opening_lines))
fh.write(remaining_txt)
if __name__ == '__main__':
parser = argparse.ArgumentParser(description="Grab the year of last mod for our c & h files and make sure the Copyright comment is up-to-date.")
args = parser.parse_args()
main()
# vim: sw=4 et
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