Apply format set in config file

Author: wata727

cmd/cli.go

@@ -64,6 +64,7 @@ func (cli *CLI) Run(args []string) int {
 	cli.formatter = &formatter.Formatter{
 		Stdout: cli.outStream,
 		Stderr: cli.errStream,
+		// NOTE: The format may be set in config file, but the flag will take precedence until it is loaded.
 		Format: opts.Format,
 		Fix:    opts.Fix,
 	}

cmd/inspect.go

@@ -93,6 +93,8 @@ func (cli *CLI) inspectModule(opts Options, dir string, filterFiles []string) (t
 		return issues, changes, fmt.Errorf("Failed to load TFLint config; %w", err)
 	}
 	cli.config.Merge(opts.toConfig())
+	// Apply format set in config file
+	cli.formatter.Format = cli.config.Format
 
 	// Setup loader
 	cli.loader, err = terraform.NewLoader(afero.Afero{Fs: afero.NewOsFs()}, cli.originalWorkingDir)

cmd/inspect_parallel.go

@@ -90,6 +90,8 @@ func (cli *CLI) inspectParallel(opts Options) int {
 		force = *opts.Force
 	}
 
+	// Parallel inspection ignores the format set in the config file
+	// and the --format CLI flag always takes precedence.
 	if err := cli.formatter.PrintParallel(issues, cli.sources); err != nil {
 		return ExitCodeError
 	}