feat: add ability to synchronize file metadata (#27)

* feat: add ability to synchronize permissions

* fix: sync flags and times too

Author: beckermr

conda_forge_feedstock_ops/os_utils.py

@@ -73,7 +73,13 @@ def _all_fnames(root_dir):
     return fnames
 
 
-def sync_dirs(source_dir, dest_dir, ignore_dot_git=True, update_git=True):
+def sync_dirs(
+    source_dir,
+    dest_dir,
+    ignore_dot_git=True,
+    update_git=True,
+    sync_stat_metadata=False,
+):
     """Sync the contents of source_dir to dest_dir.
 
     By default, this function ignores `.git` directories and will update the git index
@@ -89,6 +95,9 @@ def sync_dirs(source_dir, dest_dir, ignore_dot_git=True, update_git=True):
         Ignore .git directories, by default True
     update_git : bool, optional
         Update the git index via `git add` and `git rm`, by default True
+    sync_stat_metadata : bool, optional
+        If True, synchronize the file/directory permissions, access/modification
+        times, and flags in addition to the contents. Default is False.
     """
     os.makedirs(dest_dir, exist_ok=True)
 
@@ -137,6 +146,9 @@ def sync_dirs(source_dir, dest_dir, ignore_dot_git=True, update_git=True):
                     cwd=dest_dir,
                 )
 
+        if sync_stat_metadata:
+            shutil.copystat(src_fname, dest_fname)
+
 
 def _chmod_plus_rw(file_or_dir, skip_on_error=False):
     try: