Add Go language support for syntax highlighting

- Extend `get_language_by_extension()` to recognize `.go` files, returning 'go' for Go language.
- Update `CodeParser` class to support Go:
- Add 'go' to `language_extension_map`.
- Modify `_install_parsers()` to clone and build the `tree-sitter-go` repository.
- Include relevant syntax nodes for Go in `_get_node_types_of_interest()`:
- import_declaration => 'Import'
- function_declaration => 'Function'
- Add more as needed.
- Update `_get_nodes_for_comments()` to recognize Go comments.

These changes are necessary to provide syntax highlighting capabilities for Go code in the application, improving usability for developers working with Go files.

CodeParser.py

@@ -19,7 +19,8 @@ class CodeParser:
             "ts": "typescript",
             "tsx": "typescript",
             "php": "php",
-            "rb": "ruby"
+            "rb": "ruby",
+            "go": "go"
         }
         if file_extensions is None:
             self.language_names = []
@@ -177,6 +178,15 @@ class CodeParser:
                 'module': 'Module',
                 'singleton_class': 'Singleton Class',
                 'begin': 'Begin Block',
+            },
+            'go': {
+                'import_declaration': 'Import',
+                'function_declaration': 'Function',
+                'method_declaration': 'Method',
+                'type_declaration': 'Type',
+                'struct_type': 'Struct',
+                'interface_type': 'Interface',
+                'package_clause': 'Package'
             }
         }
 
@@ -213,6 +223,9 @@ class CodeParser:
             },
             'rb': {
                 'comment': 'Comment',
+            },
+            'go': {
+                'comment': 'Comment',
             }
         }
 

app.py

@@ -56,6 +56,8 @@ def get_language_by_extension(file_extension):
         return 'ruby'
     elif file_extension == 'php':
         return 'php'
+    elif file_extension == 'go':
+        return 'go'
     else:
         return None