Revert "Accept yml as a possible file extension for the config file" (

#94)

cmd/captain/config.go

@@ -61,14 +61,12 @@ func setConfigContext(cmd *cobra.Command, cfg Config) error {
 
 const (
 	captainDirectory    = ".captain"
-	configFileName      = "config"
+	configFileName      = "config.yaml"
 	flakesFileName      = "flakes.yaml"
 	quarantinesFileName = "quarantines.yaml"
 	timingsFileName     = "timings.yaml"
 )
 
-var configFileExtensions = []string{"yaml", "yml"}
-
 // findInParentDir starts at the current working directory and walk up to the root, trying
 // to find the specified fileName
 func findInParentDir(fileName string) (string, error) {
@@ -116,49 +114,17 @@ func findInParentDir(fileName string) (string, error) {
 // Flags take precedence over all other options.
 func InitConfig(cmd *cobra.Command, cliArgs CliArgs) (cfg Config, err error) {
 	if cliArgs.RootCliArgs.configFilePath == "" {
-		possibleConfigFilePaths := make([]string, 0, 2)
-		errs := make([]error, 0, 2)
-
-		for _, extension := range configFileExtensions {
-			configFilePath, err := findInParentDir(
-				filepath.Join(captainDirectory, fmt.Sprintf("%s.%s", configFileName, extension)),
-			)
-
-			if err == nil {
-				possibleConfigFilePaths = append(possibleConfigFilePaths, configFilePath)
-			} else {
-				errs = append(errs, err)
-			}
-		}
-
-		if len(possibleConfigFilePaths) > 1 {
+		cliArgs.RootCliArgs.configFilePath, err = findInParentDir(filepath.Join(captainDirectory, configFileName))
+		if err != nil && !errors.Is(err, os.ErrNotExist) {
 			return cfg, errors.NewConfigurationError(
-				"Unable to identify configuration file",
+				"Unable to read configuration file",
 				fmt.Sprintf(
-					"Captain found multiple configuration files in your environment: %s\n",
-					strings.Join(possibleConfigFilePaths, ", "),
+					"The following system error occurred while attempting to read the config file at %q: %s",
+					cliArgs.RootCliArgs.configFilePath, err.Error(),
 				),
-				"Please make sure only one config file is present in your environment or explicitly specify "+
-					"one using the '--config-file' flag.",
+				"Please make sure that Captain has the correct permissions to access the config file.",
 			)
 		}
-
-		if len(possibleConfigFilePaths) == 0 {
-			for _, err := range errs {
-				if err != nil && !errors.Is(err, os.ErrNotExist) {
-					return cfg, errors.NewConfigurationError(
-						"Unable to read configuration file",
-						fmt.Sprintf(
-							"The following system error occurred while attempting to read the config file at %q: %s",
-							cliArgs.RootCliArgs.configFilePath, err.Error(),
-						),
-						"Please make sure that Captain has the correct permissions to access the config file.",
-					)
-				}
-			}
-		}
-
-		cliArgs.RootCliArgs.configFilePath = possibleConfigFilePaths[0]
 	}
 
 	if cliArgs.RootCliArgs.configFilePath != "" {