Add C# source symbol parsers

Reference: aboutcode-org/scancode.io#1431
Signed-off-by: Ayan Sinha Mahapatra <ayansmahapatra@gmail.com>

Author: AyanSinhaMahapatra

setup.cfg

@@ -49,6 +49,7 @@ install_requires =
     tree-sitter-bash==0.21.0
     tree-sitter-c==0.21.1
     tree-sitter-cpp==0.22.0
+    tree-sitter-c-sharp==0.23.1
     tree-sitter-go==0.21.0
     tree-sitter-java==0.21.0
     tree-sitter-javascript==0.21.2

src/source_inspector/symbols_tree_sitter.py

@@ -160,6 +160,11 @@ def traverse(node, symbols, strings, language_info):
         "identifiers": ["identifier"],
         "string_literals": ["string_literal"],
     },
+    "C#": {
+        "wheel": "tree_sitter_c_sharp",
+        "identifiers": ["identifier"],
+        "string_literals": ["string_literal"],
+    },
     "Go": {
         "wheel": "tree_sitter_go",
         "identifiers": ["identifier"],

tests/data/symbols_tree_sitter/LibraryTypeOptionsDto.cs

@@ -0,0 +1,37 @@
+using System;
+using System.Collections.Generic;
+using MediaBrowser.Model.Configuration;
+using MediaBrowser.Model.Entities;
+
+namespace Jellyfin.Api.Models.LibraryDtos;
+
+/// <summary>
+/// Library type options dto.
+/// </summary>
+public class LibraryTypeOptionsDto
+{
+    /// <summary>
+    /// Gets or sets the type.
+    /// </summary>
+    public string? Type { get; set; }
+
+    /// <summary>
+    /// Gets or sets the metadata fetchers.
+    /// </summary>
+    public IReadOnlyList<LibraryOptionInfoDto> MetadataFetchers { get; set; } = Array.Empty<LibraryOptionInfoDto>();
+
+    /// <summary>
+    /// Gets or sets the image fetchers.
+    /// </summary>
+    public IReadOnlyList<LibraryOptionInfoDto> ImageFetchers { get; set; } = Array.Empty<LibraryOptionInfoDto>();
+
+    /// <summary>
+    /// Gets or sets the supported image types.
+    /// </summary>
+    public IReadOnlyList<ImageType> SupportedImageTypes { get; set; } = Array.Empty<ImageType>();
+
+    /// <summary>
+    /// Gets or sets the default image options.
+    /// </summary>
+    public IReadOnlyList<ImageOption> DefaultImageOptions { get; set; } = Array.Empty<ImageOption>();
+}

tests/data/symbols_tree_sitter/LibraryTypeOptionsDto.cs-expected.json

@@ -0,0 +1,52 @@
+{
+  "files": [
+    {
+      "path": "LibraryTypeOptionsDto.cs",
+      "type": "file",
+      "source_symbols": [
+        "System",
+        "System",
+        "Collections",
+        "Generic",
+        "MediaBrowser",
+        "Model",
+        "Configuration",
+        "MediaBrowser",
+        "Model",
+        "Entities",
+        "Jellyfin",
+        "Api",
+        "Models",
+        "LibraryDtos",
+        "LibraryTypeOptionsDto",
+        "Type",
+        "IReadOnlyList",
+        "LibraryOptionInfoDto",
+        "MetadataFetchers",
+        "Array",
+        "Empty",
+        "LibraryOptionInfoDto",
+        "IReadOnlyList",
+        "LibraryOptionInfoDto",
+        "ImageFetchers",
+        "Array",
+        "Empty",
+        "LibraryOptionInfoDto",
+        "IReadOnlyList",
+        "ImageType",
+        "SupportedImageTypes",
+        "Array",
+        "Empty",
+        "ImageType",
+        "IReadOnlyList",
+        "ImageOption",
+        "DefaultImageOptions",
+        "Array",
+        "Empty",
+        "ImageOption"
+      ],
+      "source_strings": [],
+      "scan_errors": []
+    }
+  ]
+}

tests/test_symbols_tree_sitter.py

@@ -60,6 +60,15 @@ def test_symbols_scanner_long_cli(self):
         expected_loc = self.get_test_loc("if_ath.c-expected.json")
         check_json_scan(expected_loc, result_file, regen=REGEN_TEST_FIXTURES)
 
+    def test_symbols_strings_c_sharp(self):
+        test_file = self.get_test_loc("LibraryTypeOptionsDto.cs")
+        result_file = self.get_temp_file("json")
+        args = ["--treesitter-symbol-and-string", test_file, "--json-pp", result_file]
+        run_scan_click(args)
+
+        expected_loc = self.get_test_loc("LibraryTypeOptionsDto.cs-expected.json")
+        check_json_scan(expected_loc, result_file, regen=True)
+
     def test_symbols_strings_objective_c(self):
         test_file = self.get_test_loc("BrazeSDKAuthDelegateWrapper.m")
         result_file = self.get_temp_file("json")