From 565afa5c7b7b2ff7a1fbb7c098aa852a9c2e8dcc Mon Sep 17 00:00:00 2001 From: Julien Dessaux Date: Mon, 24 Jul 2023 00:01:49 +0200 Subject: [haskell] embed sql migration scripts from external files --- haskell/src/SpaceTraders/Database.hs | 37 ++++++++---------------------------- 1 file changed, 8 insertions(+), 29 deletions(-) (limited to 'haskell/src/SpaceTraders/Database.hs') diff --git a/haskell/src/SpaceTraders/Database.hs b/haskell/src/SpaceTraders/Database.hs index 4fffb07..66ff893 100644 --- a/haskell/src/SpaceTraders/Database.hs +++ b/haskell/src/SpaceTraders/Database.hs @@ -1,5 +1,6 @@ {-# LANGUAGE OverloadedStrings #-} {-# LANGUAGE QuasiQuotes #-} +{-# LANGUAGE TemplateHaskell #-} module SpaceTraders.Database ( close @@ -7,36 +8,14 @@ module SpaceTraders.Database ) where import Control.Exception +import qualified Data.ByteString as B +import Data.FileEmbed import qualified Database.SQLite.Simple as S -import Text.RawString.QQ +import qualified Data.Text as T +import qualified Data.Text.Encoding as T -migrations :: [S.Query] -migrations = [ - [r|CREATE TABLE schema_version ( - version INTEGER NOT NULL - );|], - [r|CREATE TABLE tokens ( - id INTEGER PRIMARY KEY, - data TEXT NOT NULL - );|], - [r|CREATE TABLE agents ( - id INTEGER PRIMARY KEY, - data TEXT NOT NULL - );|], - [r|CREATE TABLE contracts ( - id INTEGER PRIMARY KEY, - data TEXT NOT NULL - );|], - [r|CREATE TABLE ships ( - id INTEGER PRIMARY KEY, - data TEXT NOT NULL - );|], - [r|CREATE UNIQUE INDEX ships_data_symbol ON ships (json_extract(data, '$.symbol'));|], - [r|CREATE TABLE systems ( - id INTEGER PRIMARY KEY, - data TEXT NOT NULL - );|], - [r|CREATE UNIQUE INDEX systems_data_symbol ON systems (json_extract(data, '$.symbol'));|]] +migrations :: [B.ByteString] +migrations = [ $(embedFile "src/SpaceTraders/Database/000_init.sql") ] close :: S.Connection -> IO () close conn = S.close conn @@ -48,7 +27,7 @@ open = do S.execute_ conn "PRAGMA journal_mode = WAL;" S.withTransaction conn $ do version <- getSchemaVersion conn `catch` defaultVersion - mapM_ (S.execute_ conn) $ drop version migrations + mapM_ (S.execute_ conn) $ S.Query <$> (filter (/= "\n") . concat . map ((T.splitOn ";") . T.decodeUtf8) $ drop version migrations) S.execute_ conn "DELETE FROM schema_version;" S.execute conn "INSERT INTO schema_version (version) VALUES (?);" (S.Only $ length migrations) return conn -- cgit v1.2.3