mirror of https://github.com/pressly/goose.git
100 lines
2.6 KiB
Go
100 lines
2.6 KiB
Go
package testdb
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import (
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"database/sql"
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"fmt"
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"log"
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"strconv"
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_ "github.com/libsql/libsql-client-go/libsql"
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"github.com/ory/dockertest/v3"
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"github.com/ory/dockertest/v3/docker"
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)
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const (
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// ghcr.io/tursodatabase/libsql-server:v0.22.10
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TURSO_IMAGE = "ghcr.io/tursodatabase/libsql-server"
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TURSO_VERSION = "v0.22.10"
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TURSO_PORT = "8080"
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)
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// NewTurso starts a Turso docker container. Returns db connection and a docker cleanup function.
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func NewTurso(options ...OptionsFunc) (db *sql.DB, cleanup func(), err error) {
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return newTurso(options...)
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}
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func newTurso(opts ...OptionsFunc) (*sql.DB, func(), error) {
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option := &options{}
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for _, f := range opts {
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f(option)
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}
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// Uses a sensible default on windows (tcp/http) and linux/osx (socket).
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pool, err := dockertest.NewPool("")
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if err != nil {
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return nil, nil, err
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}
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runOptions := &dockertest.RunOptions{
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Repository: TURSO_IMAGE,
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Tag: TURSO_VERSION,
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Labels: map[string]string{"goose_test": "1"},
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PortBindings: make(map[docker.Port][]docker.PortBinding),
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}
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if option.debug {
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runOptions.Env = append(runOptions.Env, "RUST=trace")
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} else {
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runOptions.Env = append(runOptions.Env, "RUST=error")
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}
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if option.bindPort > 0 {
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runOptions.PortBindings[TURSO_PORT+"/tcp"] = []docker.PortBinding{
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{HostPort: strconv.Itoa(option.bindPort)},
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}
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}
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container, err := pool.RunWithOptions(
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runOptions,
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func(config *docker.HostConfig) {
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// Set AutoRemove to true so that stopped container goes away by itself.
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config.AutoRemove = true
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config.RestartPolicy = docker.RestartPolicy{Name: "no"}
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},
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)
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if err != nil {
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return nil, nil, err
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}
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cleanup := func() {
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if option.debug {
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// User must manually delete the Docker container.
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return
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}
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if err := pool.Purge(container); err != nil {
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log.Printf("failed to purge resource: %v", err)
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}
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}
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// Fetch port assigned to container
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var db *sql.DB
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// Exponential backoff-retry, because the application in the container
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// might not be ready to accept connections yet.
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if err := pool.Retry(func() error {
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db, err = tursoOpenDB(container)
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return err
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}); err != nil {
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return nil, cleanup, fmt.Errorf("could not connect to docker database: %w", err)
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}
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return db, cleanup, nil
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}
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func tursoOpenDB(container *dockertest.Resource) (*sql.DB, error) {
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address := fmt.Sprintf("http://127.0.0.1:%s", container.GetPort(TURSO_PORT+"/tcp"))
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db, err := sql.Open("libsql", address)
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if err != nil {
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return db, err
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}
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// let's do a ping to be sure we are connected
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var result int
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err = db.QueryRow("SELECT 1").Scan(&result)
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if err != nil {
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return nil, err
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}
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return db, nil
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}
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