snapshot of https://github.com/sqlc-dev/sqlc.git (main, 2026-09-16; blobs > 131072B omitted)

internal/cmd/createdb.go

@@ -0,0 +1,102 @@
+package cmd
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"runtime/trace"
+	"time"
+
+	"github.com/spf13/cobra"
+	"github.com/sqlc-dev/sqlc/internal/config"
+	"github.com/sqlc-dev/sqlc/internal/dbmanager"
+	"github.com/sqlc-dev/sqlc/internal/migrations"
+	"github.com/sqlc-dev/sqlc/internal/sql/sqlpath"
+)
+
+var createDBCmd = &cobra.Command{
+	Use:   "createdb",
+	Short: "Create an ephemeral database",
+	Args:  cobra.NoArgs,
+	RunE: func(cmd *cobra.Command, args []string) error {
+		defer trace.StartRegion(cmd.Context(), "createdb").End()
+		stderr := cmd.ErrOrStderr()
+		dir, filename := getConfigPath(stderr, cmd.Flag("file"))
+		querySetName, err := cmd.Flags().GetString("queryset")
+		if err != nil {
+			return err
+		}
+		err = CreateDB(cmd.Context(), dir, filename, querySetName, &Options{
+			Env:    ParseEnv(cmd),
+			Stderr: stderr,
+		})
+		if err != nil {
+			fmt.Fprintln(stderr, err.Error())
+			os.Exit(1)
+		}
+		return nil
+	},
+}
+
+func CreateDB(ctx context.Context, dir, filename, querySetName string, o *Options) error {
+	_, conf, err := o.ReadConfig(dir, filename)
+	if err != nil {
+		return err
+	}
+	// Find the first queryset with a managed database
+	var queryset *config.SQL
+	var count int
+	for _, sql := range conf.SQL {
+		if querySetName != "" && sql.Name != querySetName {
+			continue
+		}
+		if sql.Database != nil && sql.Database.Managed {
+			queryset = &sql
+			count += 1
+		}
+	}
+	if queryset == nil && querySetName != "" {
+		return fmt.Errorf("no queryset found with name %q", querySetName)
+	}
+	if queryset == nil {
+		return fmt.Errorf("no querysets configured to use a managed database")
+	}
+	if count > 1 {
+		return fmt.Errorf("multiple querysets configured to use managed databases")
+	}
+
+	switch queryset.Engine {
+	case config.EngineMySQL:
+		// pass
+	case config.EnginePostgreSQL:
+		// pass
+	default:
+		return fmt.Errorf("createdb does not support the %s engine", queryset.Engine)
+	}
+
+	var ddl []string
+	files, err := sqlpath.Glob(queryset.Schema)
+	if err != nil {
+		return err
+	}
+	for _, schema := range files {
+		contents, err := os.ReadFile(schema)
+		if err != nil {
+			return fmt.Errorf("read file: %w", err)
+		}
+		ddl = append(ddl, migrations.RemoveRollbackStatements(string(contents)))
+	}
+
+	now := time.Now().UTC().UnixNano()
+	client := dbmanager.NewClient(conf.Servers)
+	resp, err := client.CreateDatabase(ctx, &dbmanager.CreateDatabaseRequest{
+		Engine:     string(queryset.Engine),
+		Migrations: ddl,
+		Prefix:     fmt.Sprintf("sqlc_createdb_%d", now),
+	})
+	if err != nil {
+		return fmt.Errorf("managed: create database: %w", err)
+	}
+	fmt.Println(resp.Uri)
+	return nil
+}