/usr/bin/ceres-node-write is in python-ceres 0.10.0~git20130913-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 | #! /usr/bin/python
import sys
import time
from optparse import OptionParser
from ceres import CeresTree, getTree
parser = OptionParser(usage='''%prog [options] <path> <datapoint> [datapoint]+
If --tree is specified, <path> is taken as a node path
Otherwise <path> is taken as a filesystem path
Each datapoint is of the form <timestamp>:<value> where <timestamp> may
be a UNIX epoch time or the character 'N' to indicate 'now'.
''')
parser.add_option('--tree', default=None)
options, args = parser.parse_args()
if not args:
parser.print_usage()
sys.exit(1)
if options.tree:
nodePath = args[0]
tree = CeresTree(options.tree)
else:
fsPath = args[0]
tree = getTree(fsPath)
if not tree:
print "error: %s is not in a ceres tree" % fsPath
sys.exit(1)
nodePath = tree.getNodePath(fsPath)
datapoints = []
now = time.time()
for datapoint in args[1:]:
timestamp, value = datapoint.split(':', 1)
if timestamp == 'N':
timestamp = now
else:
timestamp = float(timestamp)
value = float(value)
datapoints.append( (timestamp, value) )
datapoints.sort()
if not args:
print "error: no datapoints specified"
parser.print_usage()
sys.exit(1)
node = tree.getNode(nodePath)
node.write(datapoints)
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