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#!/usr/bin/env python3
# This script finds all CVS/Entries files in the current directory and below
# and creates a local .cvsinclude file with non-inherited rules including each
# checked-in file. Then, use this option whenever using --cvs-exclude (-C):
#
# -f ': .cvsinclude'
#
# That ensures that all checked-in files/dirs are included in the transfer.
# (You could alternately put ": .cvsinclude" into an .rsync-filter file and
# use the -F option, which is easier to type.)
#
# The downside is that you need to remember to re-run cvs2includes whenever
# CVS gets an added or removed file. Maybe just run it before every copy.
import os, argparse
INC_NAME = '.cvsinclude'
def main():
if args.dir:
os.chdir(args.dir)
cvs_includes = set()
for root, dirs, files in os.walk('.'):
if INC_NAME in files:
cvs_includes.add((root + '/' + INC_NAME)[2:])
if root.endswith('/CVS') and 'Entries' in files:
entries = root[2:] + '/Entries'
includes = [ ]
with open(entries) as fh:
for line in fh:
if line.startswith(('/', 'D/')):
includes.append(line.split('/', 2)[1])
if includes:
inc = root[2:-3] + INC_NAME
cvs_includes.discard(inc)
try:
with open(inc) as fh:
old_txt = fh.read()
except OSError:
old_txt = ''
txt = ''.join(f"+ /{x}\n" for x in includes)
if txt == old_txt:
print("Unchanged", inc)
else:
print("Updating", inc)
with open(inc, 'w') as fh:
fh.write(txt)
dirs.sort()
for inc in sorted(cvs_includes):
print("Removing", inc)
os.unlink(inc)
if __name__ == '__main__':
parser = argparse.ArgumentParser(description=f"Transform CVS/Entries into {INC_NAME} files.", add_help=False)
parser.add_argument("--help", "-h", action="help", help="Output this help message and exit.")
parser.add_argument("dir", nargs='?', help="The top CVS dir. Defaults to the current directory.")
args = parser.parse_args()
main()
# vim: sw=4 et
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