def main_entry():
options = docopt(__doc__, version=VERSION_MESSAGE)
files = options['FILE']
start = options['--xprefix']
braces = options['--xgrouping']
if braces:
if any([b not in '{([' for b in braces]):
print(
"error: --xgrouping can accept one or more of '{{', '[', or '(' only. Not this: '{0}'."
.format(braces))
exit(1)
# Enable or disable, but don't cache them if enabled
Environment.set_backtick_expansion(bool(options['--shell-enable']), False)
Environment.set_parse_parameters(start, braces)
env = Environment()
# Support stdin/stdout behavior if '-' is the only file specified on the command line
if '-' in files:
if len(files) > 1:
print(
"error: '-' for stdin/stdout cannot be combined with other filename arguments"
)
exit(1)
sys.stdout.write(env.expand(sys.stdin.read()))
sys.stdout.flush()
exit(0)
if len(files) < 2:
print("error: must include two or more filename arguments")
exit(1)
destdir = os.path.abspath(files[-1])
destfile = None
if os.path.isdir(destdir):
if not os.access(destdir, os.W_OK | os.X_OK):
print("error: directory {0} exists but is not writable".format(
destdir))
st = options['--strip']
if st:
files = [(f, os.path.basename(f).rstrip(st)) for f in files[:-1]]
else:
files = [(f, os.path.basename(f)) for f in files[:-1]]
check_canwrite([os.path.join(destdir, p[1]) for p in files],
options['--overwrite'])
elif len(files) != 2:
print(
"error: destination is not a directory and more than 2 files specified"
)
exit(1)
else:
destfile = files[1]
files = [(files[0], files[0])]
check_canwrite([destfile], options['--overwrite'])
# files is now a list of pairs [(source, dest-basename), ...]
for curpair in files:
if not os.path.exists(curpair[0]):
print("error: file does not exist, {0}".format(curpair[0]))
exit(1)
if not os.access(curpair[0], os.R_OK):
print("error: file is not readable, {0}".format(curpair[0]))
exit(1)
for curpair in files:
if not destfile:
destfile = os.path.join(destdir, curpair[1])
try:
oldstat = os.stat(curpair[0])
oldf = open(curpair[0], 'r')
except Exception as ex:
print("error: cannot open input file {0}: {1}".format(
curpair[0], ex))
exit(1)
try:
newf = open(destfile, 'w')
except Exception as ex:
print("error: cannot open output file {0}: {1}".format(
destfile, ex))
exit(1)
newf.write(env.expand(oldf.read()))
oldf.close()
newf.close()
if options['--archive']:
# ATTEMPT to retain permissions
try:
os.chown(destfile, oldstat.st_uid, oldstat.st_gid)
except PermissionError:
# Try them separately. User first, then group.
try:
os.chown(destfile, oldstat.st_uid, -1)
except PermissionError:
pass
try:
os.chown(destfile, -1, oldstat.st_gid)
except PermissionError:
pass
try:
os.chmod(destfile, oldstat.st_mode)
except PermissionError:
pass
try:
os.utime(destfile, times=(oldstat.st_atime, oldstat.st_mtime))
except PermissionError:
pass
if options['--verbose']:
print("envcp {0} {1}".format(curpair[0], destfile))
destfile = None
def main_entry():
options = docopt(__doc__, version=VERSION_MESSAGE)
files = options['FILE']
start = options['--xprefix']
braces = options['--xgrouping']
if braces:
if any([b not in '{([' for b in braces]):
print("error: --xgrouping can accept one or more of '{{', '[', or '(' only. Not this: '{0}'.".format(braces))
exit(1)
# Enable or disable, but don't cache them if enabled
Environment.set_backtick_expansion(bool(options['--shell-enable']), False)
Environment.set_parse_parameters(start, braces)
env = Environment()
# Support stdin/stdout behavior if '-' is the only file specified on the command line
if '-' in files:
if len(files) > 1:
print("error: '-' for stdin/stdout cannot be combined with other filename arguments")
exit(1)
sys.stdout.write(env.expand(sys.stdin.read()))
sys.stdout.flush()
exit(0)
if len(files) < 2:
print("error: must include two or more filename arguments")
exit(1)
destdir = os.path.abspath(files[-1]);
destfile = None
if os.path.isdir(destdir):
if not os.access(destdir, os.W_OK|os.X_OK):
print("error: directory {0} exists but is not writable".format(destdir))
st = options['--strip']
if st:
files = [(f, os.path.basename(f).rstrip(st)) for f in files[:-1]]
else:
files = [(f, os.path.basename(f)) for f in files[:-1]]
check_canwrite([os.path.join(destdir, p[1]) for p in files], options['--overwrite'])
elif len(files) != 2:
print("error: destination is not a directory and more than 2 files specified")
exit(1)
else:
destfile = files[1]
files = [(files[0], files[0])]
check_canwrite([destfile], options['--overwrite'])
# files is now a list of pairs [(source, dest-basename), ...]
for curpair in files:
if not os.path.exists(curpair[0]):
print("error: file does not exist, {0}".format(curpair[0]))
exit(1)
if not os.access(curpair[0], os.R_OK):
print("error: file is not readable, {0}".format(curpair[0]))
exit(1)
for curpair in files:
if not destfile:
destfile = os.path.join(destdir, curpair[1])
try:
oldstat = os.stat(curpair[0])
oldf = open(curpair[0], 'r')
except Exception as ex:
print("error: cannot open input file {0}: {1}".format(curpair[0], ex))
exit(1)
try:
newf = open(destfile, 'w')
except Exception as ex:
print("error: cannot open output file {0}: {1}".format(destfile, ex))
exit(1)
newf.write(env.expand(oldf.read()))
oldf.close()
newf.close()
if options['--archive']:
# ATTEMPT to retain permissions
try:
os.chown(destfile, oldstat.st_uid, oldstat.st_gid);
except PermissionError:
# Try them separately. User first, then group.
try:
os.chown(destfile, oldstat.st_uid, -1);
except PermissionError:
pass
try:
os.chown(destfile, -1, oldstat.st_gid);
except PermissionError:
pass
try:
os.chmod(destfile, oldstat.st_mode);
except PermissionError:
pass
try:
os.utime(destfile, times=(oldstat.st_atime, oldstat.st_mtime))
except PermissionError:
pass
if options['--verbose']:
print("envcp {0} {1}".format(curpair[0], destfile))
destfile = None
