67 lines
1.5 KiB
Go
67 lines
1.5 KiB
Go
package main
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import (
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"database/sql"
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"path"
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_ "github.com/mattn/go-sqlite3"
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)
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func openDB() *sql.DB {
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pigeonPath := maybeSetupPigeonDir()
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dbPath := path.Join(pigeonPath, "db.sqlite")
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db, err0 := sql.Open("sqlite3", dbPath)
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check(err0, "failed to open db: %s", err0)
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err1 := db.Ping()
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check(err1, "failed to ping db: %s", err1)
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migrateUp(db)
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return db
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}
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// Database is a database object. Currently using modernc.org/ql
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var database *sql.DB
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func getDB() *sql.DB {
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if database != nil {
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return database
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}
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database = openDB()
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return database
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}
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// SetConfig will write a key/value pair to the `configs`
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// table
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func SetConfig(key string, value []byte) {
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tx, err := getDB().Begin()
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check(err, "Failed to SetConfig (0): %s", err)
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_, err2 := tx.Exec("INSERT INTO configs(key, value) VALUES(?1, ?2)", key, string(value))
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check(err2, "Failed to SetConfig (1): %s", err2)
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err1 := tx.Commit()
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check(err1, "Failed to SetConfig (2): %s", err1)
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}
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// GetConfig retrieves a key/value pair (or error) from the database.
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func GetConfig(key string) ([]byte, error) {
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var result string
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row := getDB().QueryRow("SELECT value FROM configs WHERE key=$1", key)
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err := row.Scan(&result)
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if err != nil {
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return []byte{}, nil
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}
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return []byte(result), nil
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}
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// FetchConfig retrieves a key/value pair from the database.
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// Fetching an unset key will result in a panic.
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func FetchConfig(key string) []byte {
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result, err := GetConfig(key)
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check(err, "Something else went wrong: %s", err)
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return []byte(result)
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}
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