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abort if the map.sqlite file can't be found

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prevents the creation of an empty database-file, which in turn lets the minetest-engine crash
closes #171
This commit is contained in:
BuckarooBanzay 2021-05-04 17:26:20 +02:00
parent 761efab64e
commit cf6d84eabb
1 changed files with 11 additions and 1 deletions
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12
app/setup.go
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@ -40,12 +40,22 @@ func Setup(p params.ParamsType, cfg *Config) *App {
switch a.Worldconfig[worldconfig.CONFIG_BACKEND] { switch a.Worldconfig[worldconfig.CONFIG_BACKEND] {
case worldconfig.BACKEND_SQLITE3: case worldconfig.BACKEND_SQLITE3:
a.Blockdb, err = sqlite.New("map.sqlite") map_path := "map.sqlite"
// check if the database exists, otherwise abort (nothing to render/display)
_, err := os.Stat(map_path)
if os.IsNotExist(err) {
panic("world-map does not exist, aborting")
}
// create a new sqlite-based blockdb instance
a.Blockdb, err = sqlite.New(map_path)
if err != nil { if err != nil {
panic(err) panic(err)
} }
case worldconfig.BACKEND_POSTGRES: case worldconfig.BACKEND_POSTGRES:
// create a new postgres based blockdb
a.Blockdb, err = postgres.New(a.Worldconfig[worldconfig.CONFIG_PSQL_CONNECTION]) a.Blockdb, err = postgres.New(a.Worldconfig[worldconfig.CONFIG_PSQL_CONNECTION])
if err != nil { if err != nil {
panic(err) panic(err)