nilmdb/nilmdb/cmdline/remove.py

56 lines
2.2 KiB
Python

from nilmdb.utils.printf import *
import nilmdb.client
import fnmatch
def setup(self, sub):
cmd = sub.add_parser("remove", help="Remove data",
description="""
Remove all data from a specified time range within a
stream. If multiple streams or wildcards are provided,
the same time range is removed from all streams.
""")
cmd.set_defaults(handler = cmd_remove)
group = cmd.add_argument_group("Data selection")
group.add_argument("path", nargs='+',
help="Path of stream, e.g. /foo/bar/*",
).completer = self.complete.path
group.add_argument("-s", "--start", required=True,
metavar="TIME", type=self.arg_time,
help="Starting timestamp (free-form, inclusive)",
).completer = self.complete.time
group.add_argument("-e", "--end", required=True,
metavar="TIME", type=self.arg_time,
help="Ending timestamp (free-form, noninclusive)",
).completer = self.complete.time
group = cmd.add_argument_group("Output format")
group.add_argument("-q", "--quiet", action="store_true",
help="Don't display names when removing "
"from multiple paths")
group.add_argument("-c", "--count", action="store_true",
help="Output number of data points removed")
return cmd
def cmd_remove(self):
streams = [ s[0] for s in self.client.stream_list() ]
paths = []
for path in self.args.path:
new = fnmatch.filter(streams, path)
if not new:
self.die("error: no stream matched path: %s", path)
paths.extend(new)
try:
for path in paths:
if not self.args.quiet and len(paths) > 1:
printf("Removing from %s\n", path)
count = self.client.stream_remove(path,
self.args.start, self.args.end)
if self.args.count:
printf("%d\n", count);
except nilmdb.client.ClientError as e:
self.die("error removing data: %s", str(e))
return 0