[Test][ModuleInterface] Replace find with find_files utility

test/ModuleInterface/ModuleCache/module-cache-deployment-target-irrelevant.swift

@@ -24,9 +24,7 @@
 //
 // Phase 4: make sure we only compiled LeafModule and OtherModule one time:
 //
-// RUN: NUM_LEAF_MODULES=$(find %t/modulecache -type f -name 'LeafModule-*.swiftmodule' | wc -l)
-// RUN: NUM_OTHER_MODULES=$(find %t/modulecache -type f -name 'OtherModule-*.swiftmodule' | wc -l)
-// RUN: if [ ! $NUM_LEAF_MODULES -eq 1 ]; then echo "Should only be 1 LeafModule, found $NUM_LEAF_MODULES"; exit 1; fi
-// RUN: if [ ! $NUM_OTHER_MODULES -eq 1 ]; then echo "Should only be 1 OtherModule, found $NUM_OTHER_MODULES"; exit 1; fi
+// RUN: %find_files %t/modulecache 'LeafModule-*.swiftmodule' | %llvm_obj_root/bin/count 1
+// RUN: %find_files %t/modulecache 'OtherModule-*.swiftmodule' | %llvm_obj_root/bin/count 1
 import LeafModule
 import OtherModule

test/ModuleInterface/ModuleCache/module-cache-options.swift

@@ -6,12 +6,11 @@
 // RUN: %target-swift-frontend -disable-implicit-concurrency-module-import -disable-implicit-string-processing-module-import -I %t -module-cache-path %t/swiftcache -emit-module-interface-path %t/OtherModule.swiftinterface -module-name OtherModule %t/other.swift -emit-module -o /dev/null
 // RUN: %target-swift-frontend -disable-implicit-concurrency-module-import -disable-implicit-string-processing-module-import -I %t -module-cache-path %t/swiftcache -Xcc -fmodules-cache-path=%t/clangcache -emit-module -o %t/TestModule.swiftmodule -module-name TestModule %t/main.swift
 
-// RUN: NUM_SWIFT_MODULES=$(find %t/swiftcache -type f -name '*.swiftmodule' | wc -l)
-// RUN: NUM_CLANG_MODULES=$(find %t/clangcache -type f -name '*.pcm' | wc -l)
 /// Two swift modules, Leaf and Other
-// RUN: if [ ! $NUM_SWIFT_MODULES -eq 2 ]; then echo "Should only be 2 Swift Modules, found $NUM_SWIFT_MODULES"; exit 1; fi
+// RUN: %find_files %t/swiftcache '*.swiftmodule' | %llvm_obj_root/bin/count 2
 /// Two clang modules, shim and A
-// RUN: if [ ! $NUM_CLANG_MODULES -eq 2 ]; then echo "Should only be 2 Clang Modules, found $NUM_CLANG_MODULES"; exit 1; fi
+// RUN: %find_files %t/clangcache '*.pcm' | %llvm_obj_root/bin/count 2
+
 
 //--- leaf.swift
 public func LeafFunc() {}

test/lit.cfg

@@ -2981,6 +2981,8 @@ config.substitutions.append(('%round-trip-syntax-test',
                              '%s %s' % (shell_quote(sys.executable),
                                         config.round_trip_syntax_test)))
 config.substitutions.append(('%rth', '%s %s' % (shell_quote(sys.executable), config.rth)))
+config.substitutions.append(('%find_files', '%s %s' % (shell_quote(sys.executable),
+                             make_path(config.swift_utils, 'find_files'))))
 config.substitutions.append(('%scale-test',
                              '{} {} --swiftc-binary={} --tmpdir=%t --exclude-timers'.format(
                                  shell_quote(sys.executable), config.scale_test,

utils/find_files

@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+# Recursively find files matching a glob pattern. Replaces Unix (find) in lit tests
+# for cross-platform compatibility
+
+import sys
+from pathlib import Path
+
+def usage():
+    print("Usage: find_files <directory> <pattern>", file=sys.stderr)
+    sys.exit(2)
+
+def main():
+    if len(sys.argv) != 3:
+        usage()
+    root, pattern = sys.argv[1], sys.argv[2]
+    p = Path(root)
+    if not p.exists():
+        print(f"Directory not found: {root}", file=sys.stderr)
+        sys.exit(2)
+    for x in p.rglob(pattern):
+        if x.is_file():
+            print(x)
+    sys.exit(0)
+
+if __name__ == "__main__":
+    main()

utils/python_format.py

@@ -56,6 +56,7 @@
     _SWIFT_PATH / "utils/symbolicate-linux-fatal",
     _SWIFT_PATH / "utils/update-checkout",
     _SWIFT_PATH / "utils/viewcfg",
+    _SWIFT_PATH / "utils/find_files"
 ]