|
| 1 | +package docker |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "database/sql" |
| 6 | + "fmt" |
| 7 | + "os/exec" |
| 8 | + "strings" |
| 9 | + "time" |
| 10 | + |
| 11 | + _ "github.com/go-sql-driver/mysql" |
| 12 | +) |
| 13 | + |
| 14 | +var mysqlHost string |
| 15 | + |
| 16 | +func StartMySQLServer(c context.Context) (string, error) { |
| 17 | + if err := Installed(); err != nil { |
| 18 | + return "", err |
| 19 | + } |
| 20 | + if mysqlHost != "" { |
| 21 | + return mysqlHost, nil |
| 22 | + } |
| 23 | + value, err, _ := flight.Do("mysql", func() (interface{}, error) { |
| 24 | + host, err := startMySQLServer(c) |
| 25 | + if err != nil { |
| 26 | + return "", err |
| 27 | + } |
| 28 | + mysqlHost = host |
| 29 | + return host, nil |
| 30 | + }) |
| 31 | + if err != nil { |
| 32 | + return "", err |
| 33 | + } |
| 34 | + data, ok := value.(string) |
| 35 | + if !ok { |
| 36 | + return "", fmt.Errorf("returned value was not a string") |
| 37 | + } |
| 38 | + return data, nil |
| 39 | +} |
| 40 | + |
| 41 | +func startMySQLServer(c context.Context) (string, error) { |
| 42 | + { |
| 43 | + _, err := exec.Command("docker", "pull", "mysql:9").CombinedOutput() |
| 44 | + if err != nil { |
| 45 | + return "", fmt.Errorf("docker pull: mysql:9 %w", err) |
| 46 | + } |
| 47 | + } |
| 48 | + |
| 49 | + var exists bool |
| 50 | + { |
| 51 | + cmd := exec.Command("docker", "container", "inspect", "sqlc_sqltest_docker_mysql") |
| 52 | + // This means we've already started the container |
| 53 | + exists = cmd.Run() == nil |
| 54 | + } |
| 55 | + |
| 56 | + if !exists { |
| 57 | + cmd := exec.Command("docker", "run", |
| 58 | + "--name", "sqlc_sqltest_docker_mysql", |
| 59 | + "-e", "MYSQL_ROOT_PASSWORD=mysecretpassword", |
| 60 | + "-e", "MYSQL_DATABASE=dinotest", |
| 61 | + "-p", "3306:3306", |
| 62 | + "-d", |
| 63 | + "mysql:9", |
| 64 | + ) |
| 65 | + |
| 66 | + output, err := cmd.CombinedOutput() |
| 67 | + fmt.Println(string(output)) |
| 68 | + |
| 69 | + msg := `Conflict. The container name "/sqlc_sqltest_docker_mysql" is already in use by container` |
| 70 | + if !strings.Contains(string(output), msg) && err != nil { |
| 71 | + return "", err |
| 72 | + } |
| 73 | + } |
| 74 | + |
| 75 | + ctx, cancel := context.WithTimeout(c, 10*time.Second) |
| 76 | + defer cancel() |
| 77 | + |
| 78 | + // Create a ticker that fires every 10ms |
| 79 | + ticker := time.NewTicker(10 * time.Millisecond) |
| 80 | + defer ticker.Stop() |
| 81 | + |
| 82 | + uri := "root:mysecretpassword@/dinotest?multiStatements=true&parseTime=true" |
| 83 | + |
| 84 | + db, err := sql.Open("mysql", uri) |
| 85 | + if err != nil { |
| 86 | + return "", fmt.Errorf("sql.Open: %w", err) |
| 87 | + } |
| 88 | + |
| 89 | + defer db.Close() |
| 90 | + |
| 91 | + for { |
| 92 | + select { |
| 93 | + case <-ctx.Done(): |
| 94 | + return "", fmt.Errorf("timeout reached: %w", ctx.Err()) |
| 95 | + |
| 96 | + case <-ticker.C: |
| 97 | + // Run your function here |
| 98 | + if err := db.PingContext(ctx); err != nil { |
| 99 | + continue |
| 100 | + } |
| 101 | + return uri, nil |
| 102 | + } |
| 103 | + } |
| 104 | +} |
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