Add SCIP-based indexing for Zig

Author: jedisct1

README.md

@@ -94,7 +94,7 @@ The easiest way to get started with any MCP-compatible application:
 **System & Low-Level:**
 - C/C++ (`.c`, `.cpp`, `.h`, `.hpp`)
 - Rust (`.rs`)
-- Zig (`.zig`)
+- Zig (`.zig`, `.zon`)
 - Go (`.go`)
 
 **Object-Oriented:**

src/code_index_mcp/analyzers/analyzer_factory.py

@@ -7,6 +7,7 @@
 from .javascript_analyzer import JavaScriptAnalyzer
 from .java_analyzer import JavaAnalyzer
 from .objective_c_analyzer import ObjectiveCAnalyzer
+from .zig_analyzer import ZigAnalyzer
 
 
 class AnalyzerFactory:
@@ -74,6 +75,7 @@ def _initialize_factory():
     AnalyzerFactory.register(['.js', '.jsx', '.ts', '.tsx', '.mjs', '.cjs'], JavaScriptAnalyzer)
     AnalyzerFactory.register(['.java'], JavaAnalyzer)
     AnalyzerFactory.register(['.m', '.mm'], ObjectiveCAnalyzer)
+    AnalyzerFactory.register(['.zig', '.zon'], ZigAnalyzer)
 
 
 # Initialize on import

src/code_index_mcp/analyzers/zig_analyzer.py

@@ -0,0 +1,109 @@
+"""Zig language analyzer."""
+
+import os
+from typing import Dict, Any
+from .base_analyzer import LanguageAnalyzer
+from .analysis_result import AnalysisResult
+
+
+class ZigAnalyzer(LanguageAnalyzer):
+    """Analyzer for Zig files."""
+
+    def analyze(self, content: str, file_path: str, full_path: str = None) -> AnalysisResult:
+        """Analyze Zig file content."""
+        lines = content.splitlines()
+
+        # Create result object
+        _, ext = os.path.splitext(file_path)
+        result = AnalysisResult(
+            file_path=file_path,
+            line_count=self._count_lines(content),
+            size_bytes=self._get_file_size(content, full_path),
+            extension=ext,
+            analysis_type="zig"
+        )
+
+        # Zig-specific analysis
+        for i, line in enumerate(lines):
+            line_stripped = line.strip()
+
+            # Skip empty lines and comments
+            if not line_stripped or line_stripped.startswith('//'):
+                continue
+
+            # Check for imports
+            if '@import(' in line_stripped:
+                # Extract module name from @import("module") or @import("module.zig")
+                import_match = line_stripped.split('@import(')
+                if len(import_match) > 1:
+                    import_name = import_match[1].split(')')[0].strip('"\'')
+                    result.add_symbol("import", f"@import({import_name})", i + 1)
+            
+            if '@cImport(' in line_stripped:
+                result.add_symbol("import", "@cImport", i + 1)
+
+            # Check for function definitions
+            if ' fn ' in line_stripped or line_stripped.startswith('fn '):
+                # Handle both 'pub fn' and 'fn' declarations
+                if 'fn ' in line_stripped:
+                    fn_part = line_stripped.split('fn ', 1)[1]
+                    func_name = fn_part.split('(')[0].strip()
+                    if func_name:
+                        symbol_type = "function"
+                        if 'pub fn' in line_stripped:
+                            symbol_type = "function_public"
+                        result.add_symbol(symbol_type, func_name, i + 1)
+
+            # Check for struct definitions
+            if ' struct ' in line_stripped or ' struct{' in line_stripped:
+                # Look for const Name = struct pattern
+                if 'const ' in line_stripped and '=' in line_stripped:
+                    const_part = line_stripped.split('const ', 1)[1]
+                    struct_name = const_part.split('=')[0].strip()
+                    if struct_name:
+                        result.add_symbol("struct", struct_name, i + 1)
+
+            # Check for enum definitions
+            if ' enum ' in line_stripped or ' enum{' in line_stripped or ' enum(' in line_stripped:
+                # Look for const Name = enum pattern
+                if 'const ' in line_stripped and '=' in line_stripped:
+                    const_part = line_stripped.split('const ', 1)[1]
+                    enum_name = const_part.split('=')[0].strip()
+                    if enum_name:
+                        result.add_symbol("enum", enum_name, i + 1)
+
+            # Check for error set definitions
+            if ' error{' in line_stripped or '= error{' in line_stripped:
+                # Look for const Name = error pattern
+                if 'const ' in line_stripped and '=' in line_stripped:
+                    const_part = line_stripped.split('const ', 1)[1]
+                    error_name = const_part.split('=')[0].strip()
+                    if error_name:
+                        result.add_symbol("error_set", error_name, i + 1)
+
+            # Check for test blocks
+            if line_stripped.startswith('test '):
+                test_name = line_stripped[5:].split('{')[0].strip().strip('"')
+                if test_name:
+                    result.add_symbol("test", test_name, i + 1)
+
+            # Check for const/var declarations at module level
+            if line_stripped.startswith('pub const ') or line_stripped.startswith('const '):
+                # Skip struct/enum/error definitions already handled
+                if not any(keyword in line_stripped for keyword in [' struct', ' enum', ' error{']):
+                    const_part = line_stripped.replace('pub const ', '').replace('const ', '')
+                    if ':' in const_part or '=' in const_part:
+                        const_name = const_part.split(':')[0].split('=')[0].strip()
+                        if const_name:
+                            symbol_type = "const_public" if line_stripped.startswith('pub const') else "const"
+                            result.add_symbol(symbol_type, const_name, i + 1)
+
+            if line_stripped.startswith('pub var ') or line_stripped.startswith('var '):
+                var_part = line_stripped.replace('pub var ', '').replace('var ', '')
+                if ':' in var_part or '=' in var_part:
+                    var_name = var_part.split(':')[0].split('=')[0].strip()
+                    if var_name:
+                        symbol_type = "var_public" if line_stripped.startswith('pub var') else "var"
+                        result.add_symbol(symbol_type, var_name, i + 1)
+
+        return result

src/code_index_mcp/constants.py

@@ -41,7 +41,7 @@
     '.fs', '.fsx',                    # F#
     '.clj', '.cljs',                  # Clojure
     '.vim',                           # Vim script
-    '.zig',                           # Zig
+    '.zig', '.zon',                   # Zig
 
     # Web and markup
     '.html', '.htm',                  # HTML

src/code_index_mcp/scip/factory.py

@@ -7,6 +7,7 @@
 from .strategies.javascript_strategy import JavaScriptStrategy
 from .strategies.java_strategy import JavaStrategy
 from .strategies.objective_c_strategy import ObjectiveCStrategy
+from .strategies.zig_strategy import ZigStrategy
 from .strategies.fallback_strategy import FallbackStrategy
 from ..constants import SUPPORTED_EXTENSIONS
 
@@ -34,6 +35,7 @@ def _register_all_strategies(self):
             JavaScriptStrategy(priority=95),
             JavaStrategy(priority=95),
             ObjectiveCStrategy(priority=95),
+            ZigStrategy(priority=95),
         ]
 
         for strategy in language_strategies:
@@ -117,6 +119,8 @@ def list_supported_extensions(self) -> Set[str]:
                 supported.update({'.java'})
             elif isinstance(strategy, ObjectiveCStrategy):
                 supported.update({'.m', '.mm'})
+            elif isinstance(strategy, ZigStrategy):
+                supported.update({'.zig', '.zon'})
             elif isinstance(strategy, FallbackStrategy):
                 # Fallback supports everything, but we don't want to list everything here
                 pass