Set rm_files to be a synchronous method

CHANGELOG.md

@@ -10,6 +10,7 @@ Unreleased
 - The block size is now used for partitioned uploads. Previously, 1 GiB was used for each uploaded block irrespective of the block size  
 - Updated default block size to be 50 MiB. Set `blocksize` for `AzureBlobFileSystem` or `block_size` when opening `AzureBlobFile` to revert back to 5 MiB default. 
 - `AzureBlobFile` now inherits the block size from `AzureBlobFileSystem` when fs.open() is called and a block_size is not passed in.
+- Added `AzureBlobFileSystem.rm_file()`
 
 
 2024.12.0

adlfs/spec.py

@@ -1278,6 +1278,29 @@ async def _rm_files(
 
     sync_wrapper(_rm_files)
 
+    async def _rm_file(self, path: str, **kwargs):
+        """Delete a file.
+
+        Parameters
+        ----------
+        path: str
+            File to delete.
+        """
+        container_name, p, _ = self.split_path(path)
+        try:
+            async with self.service_client.get_container_client(
+                container=container_name
+            ) as cc:
+                await cc.delete_blob(p)
+        except ResourceNotFoundError:
+            pass
+        except FileNotFoundError:
+            pass
+        except Exception as e:
+            raise RuntimeError("Failed to remove %s for %s", path, e) from e
+
+    rm_file = sync_wrapper(_rm_file)
+
     async def _separate_directory_markers_for_non_empty_directories(
         self, file_paths: typing.Iterable[str]
     ) -> typing.Tuple[typing.List[str], typing.List[str]]:

adlfs/tests/test_spec.py

@@ -2140,3 +2140,15 @@ def test_blobfile_default_blocksize(storage):
         "data/root/a/file.txt",
     )
     assert f.blocksize == 50 * 2**20
+
+
+def test_rm_file(storage):
+    fs = AzureBlobFileSystem(
+        account_name=storage.account_name,
+        connection_string=CONN_STR,
+    )
+    path = "data/top_file.txt"
+
+    fs.rm_file(path)
+    with pytest.raises(FileNotFoundError):
+        fs.ls(path)