#!/usr/bin/env python3# Python rewrite of testsuite/executability.test.## Test --executability (-E): -E should propagate only the executable bits# from source to destination (other permission changes ignored), while a# normal copy without -E should leave the destination permissions alone. import errnoimport os from rsyncfns import FROMDIR, TODIR, check_perms, run_rsync, test_skipped  FROMDIR.mkdir(parents=True, exist_ok=True)(FROMDIR / '1').write_text("#!/bin/sh\necho 'Program One!'\n")(FROMDIR / '2').write_text("#!/bin/sh\necho 'Program Two!'\n") # Setuid-and-rwx for owner, nothing else. Some platforms reject 1700 for# non-root callers (no permission to set sticky); FreeBSD rejects it with# EFTYPE rather than EPERM. Only skip on those; re-raise anything unexpected._STICKY_SKIP_ERRNOS = {errno.EPERM, errno.EACCES, getattr(errno, 'EFTYPE', None)}try:    os.chmod(FROMDIR / '1', 0o1700)except OSError as e:    if e.errno not in _STICKY_SKIP_ERRNOS:        raise    test_skipped("Can't chmod")os.chmod(FROMDIR / '2', 0o600) run_rsync('-rvv', f'{FROMDIR}/', f'{TODIR}/') check_perms(TODIR / '1', 'rwx------')check_perms(TODIR / '2', 'rw-------') # Permute the source/destination perms; without -E nothing should change.os.chmod(FROMDIR / '1', 0o600)os.chmod(FROMDIR / '2', 0o601)os.chmod(TODIR / '2', 0o604) run_rsync('-rvv', f'{FROMDIR}/', f'{TODIR}/') check_perms(TODIR / '1', 'rwx------')check_perms(TODIR / '2', 'rw----r--') # Now with -E: 1 loses its x (source has 600), 2 gains x (source has 601).run_rsync('-rvvE', f'{FROMDIR}/', f'{TODIR}/') check_perms(TODIR / '1', 'rw-------')check_perms(TODIR / '2', 'rwx---r-x')