func Run()

in internal/tfengine/tfengine.go [53:120]
56 lines of code
17 McCabe index (conditional complexity)

func Run(confPath, outPath string, opts *Options) error {
	var err error
	confPath, err = fileutil.Expand(confPath)
	if err != nil {
		return err
	}
	outPath, err = fileutil.Expand(outPath)
	if err != nil {
		return err
	}

	c, err := loadConfig(confPath, nil)
	if err != nil {
		return err
	}

	compat, err := version.IsCompatible(c.Version)
	if err != nil {
		return err
	}
	if !compat {
		return fmt.Errorf("Binary version %v incompatible with template version constraint %v in %v", cmd.Version, c.Version, confPath)
	}

	tmpDir, err := ioutil.TempDir("", "")
	if err != nil {
		return err
	}
	defer os.RemoveAll(tmpDir)

	if err := dump(c, filepath.Dir(confPath), opts.CacheDir, tmpDir, opts.WantedTemplates); err != nil {
		return err
	}

	if err := os.MkdirAll(outPath, 0755); err != nil {
		return fmt.Errorf("mkdir %q: %v", outPath, err)
	}

	var errs []string

	if opts.AddLicenses {
		if err := licenseutil.AddLicense(tmpDir); err != nil {
			errs = append(errs, fmt.Sprintf("add license header: %v", err))
		}
	}

	if opts.Format {
		if err := hcl.FormatDir(&runner.Default{Quiet: true}, tmpDir); err != nil {
			errs = append(errs, fmt.Sprintf("format output dir: %v", err))
		}
	}

	// Show unmanaged files and optionally control deletion via flag.
	if opts.ShowUnmanaged {
		if err := findUnmanaged(tmpDir, outPath, opts.DeleteUnmanaged); err != nil {
			errs = append(errs, err.Error())
		}
	}

	if err := copy.Copy(tmpDir, outPath); err != nil {
		errs = append(errs, fmt.Sprintf("copy temp dir to output dir: %v", err))
	}

	if len(errs) > 0 {
		return errors.New(strings.Join(errs, "\n"))
	}
	return nil
}