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#!/usr/bin/env lua
-- load the http socket module
http = require("socket.http")
-- load the json module
json = require("json")
api_url = "http://api.openweathermap.org/data/2.5/weather?"
-- http://openweathermap.org/help/city_list.txt , http://openweathermap.org/find
cityid = "2878676"
-- metric or imperial
cf = "metric"
-- get an open weather map api key: http://openweathermap.org/appid
apikey = "3df14dd57e705f30c04157c2f6260939"
-- measure is °C if metric and °F if imperial
measure = '°' .. (cf == 'metric' and 'C' or 'F')
wind_units = (cf == 'metric' and 'kph' or 'mph')
-- Unicode weather symbols to use
icons = {
["01"] = "☀️",
["02"] = "🌤",
["03"] = "🌥",
["04"] = "☁",
["09"] = "🌧",
["10"] = "🌦",
["11"] = "🌩",
["13"] = "🌨",
["50"] = "🌫",
}
currenttime = os.date("!%Y%m%d%H%M%S")
file_exists = function (name)
f=io.open(name,"r")
if f~=nil then
f:close()
return true
else
return false
end
end
if file_exists("/etc/conky/weather.json") then
cache = io.open("/etc/conky/weather.json","r")
data = json.decode(cache:read())
cache:close()
timepassed = os.difftime(currenttime, data.timestamp)
else
timepassed = 6000
end
makecache = function (s)
cache = io.open("/etc/conky/weather.json", "w+")
s.timestamp = currenttime
save = json.encode(s)
cache:write(save)
cache:close()
end
if timepassed < 3600 then
response = data
else
print (("%sid=%s&units=%s&APPID=%s"):format(api_url, cityid, cf, apikey))
weather = http.request(("%sid=%s&units=%s&APPID=%s"):format(api_url, cityid, cf, apikey))
print(weather)
if weather then
response = json.decode(weather)
makecache(response)
else
response = data
end
end
math.round = function (n)
return math.floor(n + 0.5)
end
degrees_to_direction = function (d)
val = math.round(d/22.5)
directions={"N","NNE","NE","ENE",
"E","ESE", "SE", "SSE",
"S","SSW","SW","WSW",
"W","WNW","NW","NNW"}
return directions[val % 16]
end
temp = response.main.temp
conditions = response.weather[1].description
icon2 = response.weather[1].id
icon = response.weather[1].icon:sub(1, 2)
humidity = response.main.humidity
wind = response.wind.speed
deg = degrees_to_direction(response.wind.deg)
sunrise = os.date("%H:%M %p", response.sys.sunrise)
sunset = os.date("%H:%M %p", response.sys.sunset)
conky_text = [[
${font Symbola:size=48}%s ${voffset -10}${font :size=20}${color1}%s${font}${voffset -5}%s${color}
${alignc}${voffset 28} %s
${alignc}Humidity: ${color1}%s%%${color}
${alignc}Wind: ${color1}%s%s %s${color}
${alignc}${font Symbola:size=20}─⯊─${font}
${alignc}${color1}%s${color} | ${color1}%s${color}
]]
io.write((conky_text):format(icons[icon],
math.round(temp),
measure,
conditions,
humidity,
math.round(wind),
wind_units,
deg,
sunrise,
sunset)
)
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