From 715e7f4d68262e205b7eef20af39c9c2877288a7 Mon Sep 17 00:00:00 2001
From: Kazuma Watanabe <watassbass@gmail.com>
Date: Sun, 23 Jun 2024 12:58:27 +0000
Subject: [PATCH] Add linterOptions to settings

---
 internal/langserver/handlers/initialize.go |  8 ++++
 internal/settings/settings.go              | 47 ++++++++++++++++------
 internal/settings/settings_test.go         | 18 +++++++++
 3 files changed, 61 insertions(+), 12 deletions(-)

diff --git a/internal/langserver/handlers/initialize.go b/internal/langserver/handlers/initialize.go
index 947dac91..93e40d0d 100644
--- a/internal/langserver/handlers/initialize.go
+++ b/internal/langserver/handlers/initialize.go
@@ -205,6 +205,10 @@ func getTelemetryProperties(out *settings.DecodedOptions) map[string]interface{}
 		"options.terraform.timeout":                       "",
 		"options.terraform.logFilePath":                   false,
 		"options.validation.earlyValidation":              false,
+		"options.linters.tflint.path":                     false,
+		"options.linters.tflint.configPath":               false,
+		"options.linters.tflint.lintOnSave":               false,
+		"options.linters.tflint.timeout":                  "",
 		"root_uri":                                        "dir",
 		"lsVersion":                                       "",
 	}
@@ -221,6 +225,10 @@ func getTelemetryProperties(out *settings.DecodedOptions) map[string]interface{}
 	properties["options.terraform.timeout"] = out.Options.Terraform.Timeout
 	properties["options.terraform.logFilePath"] = len(out.Options.Terraform.LogFilePath) > 0
 	properties["options.validation.earlyValidation"] = out.Options.Validation.EnableEnhancedValidation
+	properties["options.linters.tflint.path"] = len(out.Options.Linters.TFLint.Path) > 0
+	properties["options.linters.tflint.configPath"] = len(out.Options.Linters.TFLint.ConfigPath) > 0
+	properties["options.linters.tflint.lintOnSave"] = out.Options.Linters.TFLint.LintOnSave
+	properties["options.linters.tflint.timeout"] = out.Options.Linters.TFLint.Timeout
 
 	return properties
 }
diff --git a/internal/settings/settings.go b/internal/settings/settings.go
index 08b3c533..ec922937 100644
--- a/internal/settings/settings.go
+++ b/internal/settings/settings.go
@@ -34,6 +34,17 @@ type Terraform struct {
 	LogFilePath string `mapstructure:"logFilePath"`
 }
 
+type LinterOptions struct {
+	TFLint TFLint `mapstructure:"tflint"`
+}
+
+type TFLint struct {
+	Path       string `mapstructure:"path"`
+	ConfigPath string `mapstructure:"configPath"`
+	LintOnSave bool   `mapstructure:"lintOnSave"`
+	Timeout    string `mapstructure:"timeout"`
+}
+
 type Options struct {
 	CommandPrefix string   `mapstructure:"commandPrefix"`
 	Indexing      Indexing `mapstructure:"indexing"`
@@ -47,6 +58,8 @@ type Options struct {
 
 	Terraform Terraform `mapstructure:"terraform"`
 
+	Linters LinterOptions `mapstructure:"linters"`
+
 	XLegacyModulePaths              []string `mapstructure:"rootModulePaths"`
 	XLegacyExcludeModulePaths       []string `mapstructure:"excludeModulePaths"`
 	XLegacyIgnoreDirectoryNames     []string `mapstructure:"ignoreDirectoryNames"`
@@ -56,18 +69,11 @@ type Options struct {
 }
 
 func (o *Options) Validate() error {
-	if o.Terraform.Path != "" {
-		path := o.Terraform.Path
-		if !filepath.IsAbs(path) {
-			return fmt.Errorf("Expected absolute path for Terraform binary, got %q", path)
-		}
-		stat, err := os.Stat(path)
-		if err != nil {
-			return fmt.Errorf("Unable to find Terraform binary: %s", err)
-		}
-		if stat.IsDir() {
-			return fmt.Errorf("Expected a Terraform binary, got a directory: %q", path)
-		}
+	if err := validateBinaryPath("Terraform", o.Terraform.Path); err != nil {
+		return err
+	}
+	if err := validateBinaryPath("TFLint", o.Linters.TFLint.Path); err != nil {
+		return err
 	}
 
 	if len(o.Indexing.IgnoreDirectoryNames) > 0 {
@@ -85,6 +91,23 @@ func (o *Options) Validate() error {
 	return nil
 }
 
+func validateBinaryPath(name string, path string) error {
+	if path == "" {
+		return nil
+	}
+	if !filepath.IsAbs(path) {
+		return fmt.Errorf("Expected absolute path for %s binary, got %q", name, path)
+	}
+	stat, err := os.Stat(path)
+	if err != nil {
+		return fmt.Errorf("Unable to find %s binary: %s", name, err)
+	}
+	if stat.IsDir() {
+		return fmt.Errorf("Expected a %s binary, got a directory: %q", name, path)
+	}
+	return nil
+}
+
 type DecodedOptions struct {
 	Options    *Options
 	UnusedKeys []string
diff --git a/internal/settings/settings_test.go b/internal/settings/settings_test.go
index 50032454..b6f6cdf5 100644
--- a/internal/settings/settings_test.go
+++ b/internal/settings/settings_test.go
@@ -107,3 +107,21 @@ func TestValidate_relativePath(t *testing.T) {
 		t.Fatal("expected decoding of relative path to result in error")
 	}
 }
+
+func TestValidate_linterOptions(t *testing.T) {
+	out, err := DecodeOptions(map[string]interface{}{
+		"linters": map[string]interface{}{
+			"tflint": map[string]interface{}{
+				"path": "relative/path",
+			},
+		},
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	result := out.Options.Validate()
+	if result == nil {
+		t.Fatal("expected decoding of relative path to result in error")
+	}
+}