experimental-cli/project/db.go

66 lines
1.3 KiB
Go

package main
import (
"database/sql"
"log"
"path"
"modernc.org/ql"
)
func openDB() *sql.DB {
ql.RegisterDriver()
pigeonPath := maybeSetupPigeonDir()
dbPath := path.Join(pigeonPath, "db")
db, err0 := sql.Open("ql", dbPath)
if err0 != nil {
log.Fatalf("failed to open db: %s", err0)
}
err1 := db.Ping()
if err1 != nil {
log.Fatalf("failed to ping db: %s", err1)
}
migrateUp(db)
return db
}
// Database is a database object. Currently using modernc.org/ql
var Database = openDB()
// SetConfig will write a key/value pair to the `configs`
// table
func SetConfig(key string, value []byte) {
tx, err := Database.Begin()
if err != nil {
log.Fatalf("Failed to SetConfig (0): %s", err)
}
_, err2 := tx.Exec("INSERT INTO configs(key, value) VALUES(?1, ?2)", key, string(value))
if err2 != nil {
log.Fatalf("Failed to SetConfig (1): %s", err2)
}
err1 := tx.Commit()
if err1 != nil {
log.Fatalf("Failed to SetConfig (2): %s", err)
}
}
// GetConfig retrieves a key/value pair from the database.
func GetConfig(key string) []byte {
var result string
row := Database.QueryRow("SELECT value FROM configs WHERE key=$1", key)
err := row.Scan(&result)
if err != nil {
if err == sql.ErrNoRows {
log.Fatalf("CONFIG MISSING: %s", key)
} else {
panic(err)
}
}
return []byte(result)
}