Install implements a thread-safe, idempotent Terraform Install operation. nolint:revive // verbose is a control flag that controls the verbosity of the log output.
(ctx context.Context, log slog.Logger, verbose bool, dir string, wantVersion *version.Version, baseUrl string)
| 35 | // |
| 36 | //nolint:revive // verbose is a control flag that controls the verbosity of the log output. |
| 37 | func Install(ctx context.Context, log slog.Logger, verbose bool, dir string, wantVersion *version.Version, baseUrl string) (string, error) { |
| 38 | err := os.MkdirAll(dir, 0o750) |
| 39 | if err != nil { |
| 40 | return "", err |
| 41 | } |
| 42 | |
| 43 | // Windows requires a separate lock file. |
| 44 | // See https://github.com/pinterest/knox/blob/master/client/flock_windows.go#L64 |
| 45 | // for precedent. |
| 46 | lockFilePath := filepath.Join(dir, "lock") |
| 47 | lock := flock.New(lockFilePath) |
| 48 | ok, err := lock.TryLockContext(ctx, time.Millisecond*100) |
| 49 | if !ok { |
| 50 | return "", xerrors.Errorf("could not acquire flock for %v: %w", lockFilePath, err) |
| 51 | } |
| 52 | defer lock.Close() |
| 53 | |
| 54 | binPath := filepath.Join(dir, product.Terraform.BinaryName()) |
| 55 | |
| 56 | hasVersionStr := "nil" |
| 57 | hasVersion, err := versionFromBinaryPath(ctx, binPath) |
| 58 | if err == nil { |
| 59 | hasVersionStr = hasVersion.String() |
| 60 | if hasVersion.Equal(wantVersion) { |
| 61 | return binPath, err |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | installer := &releases.ExactVersion{ |
| 66 | InstallDir: dir, |
| 67 | Product: product.Terraform, |
| 68 | Version: TerraformVersion, |
| 69 | } |
| 70 | installer.SetLogger(slog.Stdlib(ctx, log, slog.LevelDebug)) |
| 71 | if baseUrl != "" { |
| 72 | installer.ApiBaseURL = baseUrl |
| 73 | } |
| 74 | |
| 75 | logInstall := log.Debug |
| 76 | if verbose { |
| 77 | logInstall = log.Info |
| 78 | } |
| 79 | |
| 80 | logInstall(ctx, "installing terraform", |
| 81 | slog.F("prev_version", hasVersionStr), |
| 82 | slog.F("dir", dir), |
| 83 | slog.F("version", TerraformVersion)) |
| 84 | |
| 85 | prolongedInstall := atomic.Bool{} |
| 86 | prolongedInstallCtx, prolongedInstallCancel := context.WithCancel(ctx) |
| 87 | go func() { |
| 88 | seconds := 15 |
| 89 | select { |
| 90 | case <-time.After(time.Duration(seconds) * time.Second): |
| 91 | prolongedInstall.Store(true) |
| 92 | // We always want to log this at the info level. |
| 93 | log.Info( |
| 94 | prolongedInstallCtx, |