add description from comments

docs/README.md

@@ -38,7 +38,7 @@ The following annotations are supported:
     * [maxProperties](#maxproperties)
     * [required](#required)
 * [Meta-Data Annotations](#meta-data-annotations)
-    * [title](#title)
+    * [title and description](#title-and-description)
     * [default](#default)
     * [readOnly](#readonly)
 
@@ -371,17 +371,21 @@ image:
 
 ## Meta-Data Annotations
 
-### title
+### title and description
 
 String. [section 9.1](https://json-schema.org/draft/2020-12/json-schema-validation#section-9.1)
 
 ```yaml
-fullnameOverride: bar # @schema title: My title
+fullnameOverride: bar # @schema title: My title ; description: My description
+```
+
+```json
 ```
 
 ```json
 "fullnameOverride": {
     "title": "My title",
+    "description": "My description",
     "type": "string"
 },
 ```

pkg/parser.go

@@ -53,6 +53,9 @@ func mergeSchemas(dest, src *Schema) *Schema {
 	if src.Title != "" {
 		dest.Title = src.Title
 	}
+	if src.Description != "" {
+		dest.Description = src.Description
+	}
 	if src.ReadOnly {
 		dest.ReadOnly = src.ReadOnly
 	}
@@ -149,6 +152,9 @@ func convertSchemaToMapRec(schema *Schema, visited map[uintptr]bool) (map[string
 	if schema.Title != "" {
 		schemaMap["title"] = schema.Title
 	}
+	if schema.Description != "" {
+		schemaMap["description"] = schema.Description
+	}
 	if schema.ReadOnly {
 		schemaMap["readOnly"] = schema.ReadOnly
 	}

pkg/parser_test.go

@@ -21,7 +21,7 @@ func schemasEqual(a, b *Schema) bool {
 		return a == b
 	}
 	// Compare simple fields
-	if a.Type != b.Type || a.Pattern != b.Pattern || a.UniqueItems != b.UniqueItems || a.Title != b.Title || a.ReadOnly != b.ReadOnly {
+	if a.Type != b.Type || a.Pattern != b.Pattern || a.UniqueItems != b.UniqueItems || a.Title != b.Title || a.Description != b.Description || a.ReadOnly != b.ReadOnly {
 		return false
 	}
 	// Compare pointer fields
@@ -156,9 +156,9 @@ func TestMergeSchemas(t *testing.T) {
 		},
 		{
 			name: "meta-data properties",
-			dest: &Schema{Type: "object", Title: "My Title", ReadOnly: true, Default: "default value"},
-			src:  &Schema{Type: "object", Title: "My Title", ReadOnly: true, Default: "default value"},
-			want: &Schema{Type: "object", Title: "My Title", ReadOnly: true, Default: "default value"},
+			dest: &Schema{Type: "object", Title: "My Title", Description: "My description", ReadOnly: true, Default: "default value"},
+			src:  &Schema{Type: "object", Title: "My Title", Description: "My description", ReadOnly: true, Default: "default value"},
+			want: &Schema{Type: "object", Title: "My Title", Description: "My description", ReadOnly: true, Default: "default value"},
 		},
 	}
 
@@ -235,24 +235,26 @@ func TestConvertSchemaToMap(t *testing.T) {
 		{
 			name: "with all scalar types",
 			schema: &Schema{
-				Type:       "integer",
-				MultipleOf: float64Ptr(3),
-				Maximum:    float64Ptr(10),
-				Minimum:    float64Ptr(1),
-				Pattern:    "^abc",
-				Title:      "My Title",
-				Enum:       []interface{}{1, 2, 3},
-				Default:    "default",
+				Type:        "integer",
+				MultipleOf:  float64Ptr(3),
+				Maximum:     float64Ptr(10),
+				Minimum:     float64Ptr(1),
+				Pattern:     "^abc",
+				Title:       "My Title",
+				Description: "some description",
+				Enum:        []interface{}{1, 2, 3},
+				Default:     "default",
 			},
 			want: map[string]interface{}{
-				"type":       "integer",
-				"multipleOf": 3.0,
-				"maximum":    10.0,
-				"minimum":    1.0,
-				"pattern":    "^abc",
-				"title":      "My Title",
-				"enum":       []interface{}{1, 2, 3},
-				"default":    "default",
+				"type":        "integer",
+				"multipleOf":  3.0,
+				"maximum":     10.0,
+				"minimum":     1.0,
+				"pattern":     "^abc",
+				"title":       "My Title",
+				"description": "some description",
+				"enum":        []interface{}{1, 2, 3},
+				"default":     "default",
 			},
 		},
 	}

pkg/schema.go

@@ -27,6 +27,7 @@ type Schema struct {
 	Items         *Schema            `json:"items,omitempty"`
 	Properties    map[string]*Schema `json:"properties,omitempty"`
 	Title         string             `json:"title,omitempty"`
+	Description   string             `json:"description,omitempty"`
 	ReadOnly      bool               `json:"readOnly,omitempty"`
 	Default       interface{}        `json:"default,omitempty"`
 }
@@ -163,6 +164,8 @@ func processComment(schema *Schema, comment string) (isRequired bool) {
 				schema.Type = processList(value, true)
 			case "title":
 				schema.Title = value
+			case "description":
+				schema.Description = value
 			case "readOnly":
 				if v, err := strconv.ParseBool(value); err == nil {
 					schema.ReadOnly = v

pkg/schema_test.go

@@ -311,8 +311,8 @@ func TestProcessComment(t *testing.T) {
 		{
 			name:             "Set meta-data",
 			schema:           &Schema{},
-			comment:          "# @schema title:My Title;readOnly:false;default:\"foo\"",
-			expectedSchema:   &Schema{Title: "My Title", ReadOnly: false, Default: "foo"},
+			comment:          "# @schema title:My Title;description: some description;readOnly:false;default:\"foo\"",
+			expectedSchema:   &Schema{Title: "My Title", Description: "some description", ReadOnly: false, Default: "foo"},
 			expectedRequired: false,
 		},
 	}

testdata/full.schema.json

@@ -89,6 +89,7 @@
             ]
         },
         "fullnameOverride": {
+            "description": "My description",
             "pattern": "^[a-z]$",
             "title": "My title",
             "type": "string"

testdata/full.yaml

@@ -15,7 +15,7 @@ empty: # @schema type: [string, null]
 replicas: 2 # @schema minimum: 1 ; maximum: 10 ; multipleOf: 2
 
 # Strings
-fullnameOverride: bar # @schema pattern: ^[a-z]$ ; title: My title
+fullnameOverride: bar # @schema pattern: ^[a-z]$ ; title: My title ; description: My description
 
 # Arrays
 imagePullSecrets: [] # @schema item: object