Add WSL support

keycmd/__main__.py

@@ -35,13 +35,13 @@ def main():
     """CLI entrypoint"""
     args = cli.parse_args()
 
-    if args.verbose:
-        set_verbose()
-
     if args.version:
         log(f"v{__version__}")
         return
 
+    if args.verbose:
+        set_verbose()
+
     try:
         conf = load_conf()
     except tomli.TOMLDecodeError as err:

keycmd/wsl.py

@@ -0,0 +1,36 @@
+from subprocess import run
+
+from keyring.backend import KeyringBackend
+
+from .logs import error
+
+
+def call_host_keyring(python, command):
+    p = run(
+        [python, "-c", f"import keyring; {command}"], shell=False, capture_output=True
+    )
+    if p.returncode != 0:
+        error(f"call to WSL host keyring failed (python path: {python}): {stderr}")
+    stdout, stderr = p.stdout.decode("utf-8").strip(), p.stderr.decode("utf-8").strip()
+    return stdout
+
+
+class WslHostKeyring(KeyringBackend):
+    priority = 1
+    python = "py.exe"
+
+    def set_password(self, servicename, username, password):
+        call_host_keyring(
+            self.python,
+            f"keyring.set_password('{servicename}', '{username}', '{password}')",
+        )
+
+    def get_password(self, servicename, username):
+        return call_host_keyring(
+            self.python, f"print(keyring.get_password('{servicename}', '{username}'))"
+        )
+
+    def delete_password(self, servicename, username):
+        call_host_keyring(
+            self.python, f"keyring.delete_password('{servicename}', '{username}')"
+        )