84 lines
2.2 KiB
Go
84 lines
2.2 KiB
Go
package main
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import (
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"database/sql"
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"flag"
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"fmt"
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"log"
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"os"
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_ "github.com/go-sql-driver/mysql"
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)
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var wipeDB bool
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func init() {
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flag.BoolVar(&wipeDB, "wipe-databases", false, "wipe databases before creating them")
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}
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func main() {
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flag.Parse()
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db, err := sql.Open("mysql", fmt.Sprintf("%s:%s@tcp(%s:3306)/",
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os.Getenv("DB_ADMIN_USER"),
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os.Getenv("DB_ADMIN_PASS"),
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os.Getenv("DB_HOST"),
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))
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if err != nil {
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log.Fatal("failed to connect to database:", err)
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}
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if err := createDB(db,
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os.Getenv("DB_PASS"),
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); err != nil {
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log.Fatal("failed to ensure database creation:", err)
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}
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log.Print("database verified")
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}
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func createDB(db *sql.DB, dbpass string) error {
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tx, err := db.Begin()
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if err != nil {
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return fmt.Errorf("failed to create db transaction: %w", err)
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}
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defer tx.Rollback()
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if wipeDB {
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if _, err := tx.Exec("DROP DATABASE IF EXISTS mcp"); err != nil {
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return fmt.Errorf("failed to drop existing mcp database: %w", err)
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}
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if _, err := tx.Exec("DROP DATABASE IF EXISTS ss"); err != nil {
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return fmt.Errorf("failed to drop existing ss database: %w", err)
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}
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}
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// NB: "CREATE USER" does not support substitutions: https://bugs.mysql.com/bug.php?id=28406
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if _, err := tx.Exec(fmt.Sprintf(`CREATE USER IF NOT EXISTS 'am'@'%%' IDENTIFIED BY '%s'`, dbpass)); err != nil {
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return fmt.Errorf("failed to create database user: %w", err)
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}
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if _, err := tx.Exec(`CREATE DATABASE IF NOT EXISTS mcp CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci`); err != nil {
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return fmt.Errorf("failed to ensure creation of mcp database: %w", err)
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}
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if _, err := tx.Exec(`GRANT ALL ON mcp.* TO 'am'@'%'`); err != nil {
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return fmt.Errorf("failed to ensure privilege to mcp database: %w", err)
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}
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if _, err := tx.Exec(`CREATE DATABASE IF NOT EXISTS ss CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci`); err != nil {
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return fmt.Errorf("failed to ensure creation of ss database: %w", err)
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}
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if _, err := tx.Exec(`GRANT ALL ON ss.* TO 'am'@'%'`); err != nil {
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return fmt.Errorf("failed to ensure privilege to ss database: %w", err)
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}
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if _, err := tx.Exec(`FLUSH PRIVILEGES`); err != nil {
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return fmt.Errorf("failed to flush privileges: %w", err)
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}
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return tx.Commit()
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}
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