module Main (main) where
import Database.PostgreSQL.LibPQ
import System.Environment (getEnvironment)
import qualified Data.ByteString.Char8 as BS8
main :: IO ()
main = do
env <- getEnvironment
case lookup "DATABASE_CONNSTRING" env of
Nothing -> putStrLn "Set DATABASE_CONNSTRING environment variable"
Just s -> smoke (BS8.pack (special s))
where
-- https://www.appveyor.com/docs/services-databases/
special "appveyor" = "dbname='TestDb' user='postgres' password='Password12!'"
special "travis" = ""
special s = s
smoke :: BS8.ByteString -> IO ()
smoke connstring = do
conn <- connectdb connstring
-- status functions
db conn >>= print
user conn >>= print
host conn >>= print
port conn >>= print
status conn >>= print
transactionStatus conn >>= print
protocolVersion conn >>= print
serverVersion conn >>= print
finish conn