Merge pull request #60017 from keith/ks/build-ignore-.git-in-ninja-copy

[build] Ignore .git in ninja copy

Author: swift-ci

utils/swift_build_support/swift_build_support/products/ninja.py

@@ -77,7 +77,7 @@ def build(self):
         # Ninja can only be built in-tree.  Copy the source tree to the build
         # directory.
         shell.rmtree(self.build_dir)
-        shell.copytree(self.source_dir, self.build_dir)
+        shell.copytree(self.source_dir, self.build_dir, ignore_pattern=".git")
         with shell.pushd(self.build_dir):
             shell.call([sys.executable, 'configure.py', '--bootstrap'],
                        env=env)

utils/swift_build_support/swift_build_support/shell.py

@@ -183,13 +183,14 @@ def rmtree(path, dry_run=None, echo=True):
         shutil.rmtree(path)
 
 
-def copytree(src, dest, dry_run=None, echo=True):
+def copytree(src, dest, dry_run=None, ignore_pattern=None, echo=True):
     dry_run = _coerce_dry_run(dry_run)
     if dry_run or echo:
         _echo_command(dry_run, ['cp', '-r', src, dest])
     if dry_run:
         return
-    shutil.copytree(src, dest)
+    ignore = shutil.ignore_patterns(ignore_pattern) if ignore_pattern else None
+    shutil.copytree(src, dest, ignore=ignore)
 
 
 def symlink(source, dest, dry_run=None, echo=True):