fix skip dir

Author: Bao Zhiyuan

testgen/collect.mbt

@@ -397,6 +397,20 @@ fn collect_cases_for_text(
   }
 }
 
+///|
+fn should_skip_dir(name : String) -> Bool {
+  match name {
+    "_build"
+    | "target"
+    | "node_modules"
+    | ".mooncakes"
+    | ".moonagent"
+    | ".repo"
+    | ".git" => true
+    _ => false
+  }
+}
+
 ///|
 fn walk_dir(
   abs_dir : String,
@@ -422,7 +436,7 @@ fn walk_dir(
       value => value
     }
     if is_dir {
-      if not(name is "_build" || name is "target" || name is "node_modules") {
+      if not(should_skip_dir(name)) {
         walk_dir(abs_path, rel_path, out)
       }
       continue

testgen/testgen_wbtest.mbt

@@ -1,3 +1,20 @@
+///|
+test "should_skip_dir covers dependency and vcs dirs" {
+  debug_inspect(
+    [
+      should_skip_dir("_build"),
+      should_skip_dir("target"),
+      should_skip_dir("node_modules"),
+      should_skip_dir(".mooncakes"),
+      should_skip_dir(".moonagent"),
+      should_skip_dir(".repo"),
+      should_skip_dir(".git"),
+      should_skip_dir("src"),
+    ],
+    content="[true, true, true, true, true, true, true, false]",
+  )
+}
+
 ///|
 test "collect_cases_for_text uses ast nodes" {
   let text =