Release v0.12.0

eta/core/storage.py

@@ -274,6 +274,17 @@ def list_files_in_folder(self, remote_dir, recursive=True):
             "subclass must implement list_files_in_folder()"
         )
 
+    def list_subfolders(self, remote_dir):
+        """Returns a list of the subfolders in the given remote directory.
+
+        Args:
+            remote_dir: the remote directory
+
+        Returns:
+            a list of full paths to the subfolders in the folder
+        """
+        raise NotImplementedError("subclass must implement list_subfolders()")
+
     def upload_dir(
         self, local_dir, remote_dir, recursive=True, skip_failures=False
     ):
@@ -639,6 +650,17 @@ def list_files_in_folder(self, storage_dir, recursive=True):
             storage_dir, abs_paths=True, recursive=recursive
         )
 
+    def list_subfolders(self, storage_dir):
+        """Returns a list of the subfolders in the given storage directory.
+
+        Args:
+            storage_dir: the storage directory
+
+        Returns:
+            a list of full paths to the subfolders in the folder
+        """
+        return etau.list_subdirs(storage_dir, abs_paths=True)
+
 
 class _BotoCredentialsError(Exception):
     def __init__(self, message):
@@ -990,6 +1012,32 @@ def list_files_in_folder(
 
         return paths_or_metadata
 
+    def list_subfolders(self, cloud_folder):
+        """Returns a list of sub "folders" in the given cloud "folder".
+
+        Args:
+            cloud_folder: a cloud "folder" path
+
+        Returns:
+            a list of full cloud paths for the subfolders in the folder
+        """
+        bucket, folder_name = self._parse_path(cloud_folder)
+        if folder_name and not folder_name.endswith("/"):
+            folder_name += "/"
+
+        prefix = self._get_prefix(cloud_folder) + bucket + "/"
+        paginator = self._client.get_paginator("list_objects_v2")
+
+        # https://stackoverflow.com/q/14653694
+        paths = set()
+        for page in paginator.paginate(
+            Bucket=bucket, Prefix=folder_name, Delimiter="/"
+        ).search("CommonPrefixes"):
+            if page is not None:
+                paths.add(page["Prefix"])
+
+        return [prefix + p for p in paths]
+
     def generate_signed_url(
         self, cloud_path, method="GET", hours=24, content_type=None
     ):
@@ -2130,13 +2178,41 @@ def list_files_in_folder(
 
         # Return paths for each file
         paths = []
-        prefix = "gs://" + bucket_name
+        prefix = "gs://" + bucket_name + "/"
         for blob in blobs:
             if not blob.name.endswith("/"):
-                paths.append(prefix + "/" + blob.name)
+                paths.append(prefix + blob.name)
 
         return paths
 
+    def list_subfolders(self, cloud_folder):
+        """Returns a list of sub "folders" in the given "folder" in GCS.
+
+        Args:
+            cloud_folder: a string like `gs://<bucket-name>/<folder-path>`
+
+        Returns:
+            a list of full cloud paths for the subfolders in the folder
+        """
+        bucket_name, folder_name = self._parse_path(cloud_folder)
+        if folder_name and not folder_name.endswith("/"):
+            folder_name += "/"
+
+        prefix = "gs://" + bucket_name + "/"
+        blobs = self._client.list_blobs(
+            bucket_name,
+            prefix=folder_name,
+            delimiter="/",
+            retry=self._retry,
+        )
+
+        # https://github.com/googleapis/google-cloud-python/issues/920
+        paths = set()
+        for page in blobs.pages:
+            paths.update(page.prefixes)
+
+        return [prefix + p for p in paths]
+
     def generate_signed_url(
         self, cloud_path, method="GET", hours=24, content_type=None
     ):
@@ -2912,6 +2988,34 @@ def list_files_in_folder(
 
         return paths
 
+    def list_subfolders(self, cloud_folder):
+        """Returns a list of sub "folders" in the given "folder" in Azure
+        Storage.
+
+        Args:
+            cloud_folder: a string like
+                `https://<account-name>.blob.core.windows.net/<container-name>/<folder-path>`
+
+        Returns:
+            a list of full cloud paths for the subfolders in the folder
+        """
+        container_name, folder_name = self._parse_path(cloud_folder)
+        if folder_name and not folder_name.endswith("/"):
+            folder_name += "/"
+
+        prefix = self._get_prefix(cloud_folder) + container_name + "/"
+        blobs = self._list_blobs(
+            container_name, prefix=folder_name, recursive=False
+        )
+
+        # https://learn.microsoft.com/en-us/azure/storage/blobs/storage-blobs-list-python#use-a-hierarchical-listing
+        paths = set()
+        for blob in blobs:
+            if blob.name.endswith("/"):
+                paths.add(blob.name)
+
+        return [prefix + p for p in paths]
+
     def generate_signed_url(
         self, cloud_path, method="GET", hours=24, content_type=None
     ):
@@ -2993,15 +3097,14 @@ def _get_blob_client(self, cloud_path):
         return self._client.get_blob_client(container_name, blob_name)
 
     def _parse_path(self, cloud_path):
-        try:
-            client = azb.BlobClient.from_blob_url(cloud_path)
-            return client.container_name, client.blob_name
-        except ValueError as e:
-            try:
-                client = azb.ContainerClient.from_container_url(cloud_path)
-                return client.container_name, ""
-            except:
-                raise e
+        _cloud_path = self._strip_prefix(cloud_path)
+
+        chunks = _cloud_path.split("/", 1)
+
+        if len(chunks) != 2:
+            return chunks[0], ""
+
+        return chunks[0], chunks[1]
 
     def _get_prefix(self, cloud_path):
         return _get_prefix(cloud_path, self._prefixes)

eta/core/utils.py

@@ -3844,7 +3844,7 @@ def get_glob_matches(glob_patt):
     Returns:
         a list of file paths that match `glob_patt`
     """
-    return sorted(glob.glob(glob_patt))
+    return sorted(p for p in glob.glob(glob_patt) if not os.path.isdir(p))
 
 
 def parse_glob_pattern(glob_patt):

setup.py

@@ -16,7 +16,7 @@
 from wheel.bdist_wheel import bdist_wheel
 
 
-VERSION = "0.11.0"
+VERSION = "0.12.0"
 
 
 class BdistWheelCustom(bdist_wheel):