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import strformat
import strutils
from os import `/`, parentDir
task build, "build tools":
mkdir("bin")
exec("nim c -o:bin/update_graphs src/update_graphs.nim")
exec("nim c -o:bin/update_database src/update_database.nim")
task createdb, "create a new database":
hint("QuitCalled", false)
# This database will store the following data
# - 1 year worth of samples each 15 minutes
# - average of each day for 10 years
# - min of each day for 10 years
# - max of each day for 10 years
let
database = thisDir() / "database" / paramStr(2) & ".rrd"
step = 15 * 60
heartbeat = 20 * 60
secondsInDay = 24 * 60 * 60
samplesInDay = secondsInDay div step
secondsInYear = 365 * secondsInDay
samplesInYear = secondsInYear div step
daysIn10Years = 365 * 10
if fileExists(database):
echo(&"error: database '{database}' exists")
quit(1)
echo(&"step = {step} seconds")
echo(&"heartbeat = {heartbeat} seconds")
echo(&"samplesInYear = {samplesInYear}")
echo(&"samplesInDay = {samplesInDay}")
echo(&"daysIn10Years = {daysIn10Years}")
let args = [
"create", database,
"--start", "now",
"--step", $step,
&"DS:temperature:GAUGE:{heartbeat}:-40:40",
&"DS:humidity:GAUGE:{heartbeat}:0:100",
&"DS:pressure:GAUGE:{heartbeat}:U:U",
&"DS:battery:GAUGE:{heartbeat}:0:4",
&"RRA:AVERAGE:0.5:1:{samplesInYear}",
&"RRA:MIN:0.5:{samplesInDay}:{daysIn10Years}",
&"RRA:MAX:0.5:{samplesInDay}:{daysIn10Years}",
&"RRA:AVERAGE:0.5:{samplesInDay}:{daysIn10Years}",
]
mkdir(database.parentDir())
echo("rrdtool " & args.join(" "))
exec("rrdtool " & args.join(" "))
task install_cgi_kapsi, "install cgi script on kapsi.fi":
proc modifyPath(s: string): string =
result = s.replace("/home/users", "/var/www/userhome")
let
databaseDir = modifyPath(thisDir() / "database")
updateDatabasePath = modifyPath(thisDir() / "bin" / "update_database")
scriptPath = paramStr(2)
script = &"""
#!{updateDatabasePath}
databaseDir = "{databaseDir}"
"""
writeFile(scriptPath, script)
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