add sftp registration (#35)

setup.cfg

@@ -30,3 +30,4 @@ pywin32 = asyncssh[pywin32]
 [options.entry_points]
 fsspec.specs =
     ssh = sshfs.spec:SSHFileSystem
+    sftp = sshfs.spec:SSHFileSystem

tests/test_sshfs.py

@@ -4,10 +4,10 @@
 import tempfile
 import warnings
 from concurrent import futures
-from datetime import datetime, timedelta
 from pathlib import Path
 
 import fsspec
+import pkg_resources
 import pytest
 from asyncssh.sftp import SFTPFailure
 
@@ -73,28 +73,30 @@ def strip_keys(info):
 
 
 def test_fsspec_registration(ssh_server):
-    fs = fsspec.filesystem(
-        "ssh",
-        host=ssh_server.host,
-        port=ssh_server.port,
-        username="user",
-        client_keys=[USERS["user"]],
-    )
-    assert isinstance(fs, SSHFileSystem)
+    for ep in pkg_resources.iter_entry_points(group="fsspec.specs"):
+        fs = fsspec.filesystem(
+            ep.name,
+            host=ssh_server.host,
+            port=ssh_server.port,
+            username="user",
+            client_keys=[USERS["user"]],
+        )
+        assert isinstance(fs, SSHFileSystem)
 
 
 def test_fsspec_url_parsing(ssh_server, remote_dir, user="user"):
-    url = f"ssh://{user}@{ssh_server.host}:{ssh_server.port}/{remote_dir}/file"
-    with fsspec.open(url, "w", client_keys=[USERS[user]]) as file:
-        # Check the underlying file system.
-        file_fs = file.buffer.fs
-        assert isinstance(file_fs, SSHFileSystem)
-        assert file_fs.storage_options == {
-            "host": ssh_server.host,
-            "port": ssh_server.port,
-            "username": user,
-            "client_keys": [USERS[user]],
-        }
+    for ep in pkg_resources.iter_entry_points(group="fsspec.specs"):
+        url = f"{ep.name}://{user}@{ssh_server.host}:{ssh_server.port}/{remote_dir}/file"
+        with fsspec.open(url, "w", client_keys=[USERS[user]]) as file:
+            # Check the underlying file system.
+            file_fs = file.buffer.fs
+            assert isinstance(file_fs, SSHFileSystem)
+            assert file_fs.storage_options == {
+                "host": ssh_server.host,
+                "port": ssh_server.port,
+                "username": user,
+                "client_keys": [USERS[user]],
+            }
 
 
 def test_info(fs, remote_dir):