eidolon/Migrations/0.1.0.0-0.1.1.0/Migration.hs
2016-09-06 17:38:03 +02:00

47 lines
1.4 KiB
Haskell
Executable file

import Database.HDBC
import Database.HDBC.PostgreSQL
import System.IO
import Control.Exception
import Data.Maybe (fromJust)
import qualified Data.Text as T
import qualified Data.ByteString.Char8 as B
import System.FilePath as FP
import Filesystem.Path.CurrentOS
import Codec.Picture
import Codec.Picture.ScaleDCT
import qualified Codec.Picture.Metadata as PM
main :: IO ()
main = do
putStrLn "Enter database host"
dbHost <- getLine
putStrLn "Enter database port"
dbPort <- getLine
putStrLn "Enter database user"
dbUser <- getLine
putStrLn "Enter database name"
dbName <- getLine
putStrLn "Enter database password"
dbPasswd <- getPasswd
let dbString = "host=" ++ dbHost ++ " port=" ++ dbPort ++ " user=" ++ dbUser ++ " dbname=" ++ dbName ++ " password=" ++ dbPasswd
conn <- connectPostgreSQL dbString
_ <- run conn "alter table album drop column sample_width" []
_ <- run conn "alter table medium drop column width" []
_ <- run conn "alter table medium drop column thumb_width" []
_ <- run conn "alter table medium drop column preview_width" []
commit conn
disconnect conn
putStrLn "Migration successfull!!"
getPasswd :: IO String
getPasswd = do
putStr "Password: "
hFlush stdout
pass <- withEcho False getLine
putChar '\n'
return pass
withEcho :: Bool -> IO a -> IO a
withEcho echo action = do
old <- hGetEcho stdin
bracket_ (hSetEcho stdin echo) (hSetEcho stdin old) action