From 80b97f5567d7ae433292845a97b4d6a86f4c8997 Mon Sep 17 00:00:00 2001
From: Amaan Qureshi <amaan.qureshi@datadoghq.com>
Date: Wed, 25 Sep 2024 14:44:46 -0400
Subject: [PATCH] feat: ignore auto-generated C# files

---
 .../src/analysis/generated_content.rs         | 25 +++++++++++++++++++
 .../src/model/config_file.rs                  |  1 +
 2 files changed, 26 insertions(+)

diff --git a/crates/static-analysis-kernel/src/analysis/generated_content.rs b/crates/static-analysis-kernel/src/analysis/generated_content.rs
index fb4b74fd..8eaa85b9 100644
--- a/crates/static-analysis-kernel/src/analysis/generated_content.rs
+++ b/crates/static-analysis-kernel/src/analysis/generated_content.rs
@@ -45,6 +45,9 @@ pub fn is_generated_file(full_content: &str, language: &Language) -> bool {
                 | content.contains("GENERATED CODE -- DO NOT EDIT!")
                 | content.contains(THRIFT_HEADER)
         }
+        Language::Csharp => {
+            content.contains("<autogenerated") | content.contains("<auto-generated")
+        }
         _ => false,
     }
 }
@@ -80,6 +83,12 @@ pub const DEFAULT_IGNORED_GLOBS: &[&str] = &[
     "**/.bundle/**/*",
     // Java
     "**/.gradle/**/*",
+    // C#
+    "**/TemporaryGeneratedFile_.*.cs",
+    "**/*.designer.cs",
+    "**/*.generated.cs",
+    "**/*.g.cs",
+    "**/*.g.i.cs",
 ];
 
 #[cfg(test)]
@@ -195,6 +204,22 @@ mod tests {
         ));
     }
 
+    #[test]
+    fn test_is_generated_file_csharp() {
+        assert!(!is_generated_file(
+            &"// <notautogenerated>\nfunction smtg(){}",
+            &Language::Csharp,
+        ));
+        assert!(is_generated_file(
+            &"// <autogenerated>\nfunction smtg(){}",
+            &Language::Csharp
+        ));
+        assert!(is_generated_file(
+            &"//----\n  <auto-generated>\n  Autogenerated\n  </auto-generated>\n//----\nfunction smtg(){}",
+            &Language::Csharp
+        ));
+    }
+
     #[test]
     fn test_is_minified_file_javascript() {
         assert!(is_minified_file(
diff --git a/crates/static-analysis-kernel/src/model/config_file.rs b/crates/static-analysis-kernel/src/model/config_file.rs
index 84b70889..b4644e27 100644
--- a/crates/static-analysis-kernel/src/model/config_file.rs
+++ b/crates/static-analysis-kernel/src/model/config_file.rs
@@ -135,6 +135,7 @@ impl From<String> for PathPattern {
                 .literal_separator(true)
                 .empty_alternates(true)
                 .backslash_escape(true)
+                .case_insensitive(true)
                 .build()
                 .map(|g| g.compile_matcher())
                 .ok(),