Function LoadConfigDirCheckDuplicate

command/server/config.go:955–1018

LoadConfigDirCheckDuplicate is the same as the above but checks for duplciate HCL attributes TODO (HCL_DUP_KEYS_DEPRECATION): keep only LoadConfigDir once deprecation is complete

(dir string)

// LoadConfigDirCheckDuplicate is the same as the above but checks for duplciate HCL attributes
// TODO (HCL_DUP_KEYS_DEPRECATION): keep only LoadConfigDir once deprecation is complete
func LoadConfigDirCheckDuplicate(dir string) (cfg *Config, duplicate bool, err error) {
	f, err := os.Open(dir)
	if err != nil {
		return nil, false, err
	}
	defer f.Close()

	fi, err := f.Stat()
	if err != nil {
		return nil, false, err
	}
	if !fi.IsDir() {
		return nil, false, fmt.Errorf("configuration path must be a directory: %q", dir)
	}

	var files []string
	err = nil
	for err != io.EOF {
		var fis []os.FileInfo
		fis, err = f.Readdir(128)
		if err != nil && err != io.EOF {
			return nil, false, err
		}

		for _, fi := range fis {
			// Ignore directories
			if fi.IsDir() {
				continue
			}

			// Only care about files that are valid to load.
			name := fi.Name()
			skip := true
			if strings.HasSuffix(name, ".hcl") {
				skip = false
			} else if strings.HasSuffix(name, ".json") {
				skip = false
			}
			if skip || isTemporaryFile(name) {
				continue
			}

			path := filepath.Join(dir, name)
			files = append(files, path)
		}
	}

	result := NewConfig()
	for _, f := range files {
		config, dup, err := LoadConfigFileCheckDuplicate(f)
		if err != nil {
			return nil, duplicate, fmt.Errorf("error loading %q: %w", f, err)
		}
		duplicate = duplicate || dup

		if result == nil {
			result = config
		} else {