List only micromamba environments with jupyter kernel(s)

src/glicid_spawner/micromamba.py

@@ -7,7 +7,6 @@ from pathlib import Path
 MICROMAMBA_ROOT = Path('/micromamba')  # default micromamba root location
 
 GLOBAL_USER = 'operator'
-GLOBAL_EXCLUDED = 'glicid-jupyterhub'
 
 
 @dataclass
@@ -19,15 +18,9 @@ class MicromambaEnv:
     path: str
 
 
-def _envs(folder, excluded=None) -> list:
-    """List micromamba environments."""
-    # Convert excluded as as list
-    if excluded is None:
-        excluded = []
-    elif isinstance(excluded, str):
-        excluded = [excluded]
-
-    # Get micromamba envs as pathlib.Path
+def _envs(folder) -> list:
+    """List micromamba environments with jupyter kernel(s)."""
+    # Get micromamba environments as pathlib.Path folders
     envs = MICROMAMBA_ROOT / folder / 'envs'
 
     if not envs.exists():
@@ -37,7 +30,7 @@ def _envs(folder, excluded=None) -> list:
         [
             (env.name, str(env))
             for env in envs.iterdir()
-            if env.is_dir() and env.name not in excluded
+            if env.is_dir() and any(env.glob('share/jupyter/kernels/*/kernel.json'))
         ],
         key=itemgetter(0),
     )
@@ -64,10 +57,7 @@ def _envs_team(username: str) -> list:
 
 def _envs_global() -> list:
     """Micromamba environment(s) available globally."""
-    return [
-        MicromambaEnv('GLOBAL', name, path)
-        for name, path in _envs(GLOBAL_USER, excluded=GLOBAL_EXCLUDED)
-    ]
+    return [MicromambaEnv('GLOBAL', name, path) for name, path in _envs(GLOBAL_USER)]
 
 
 def get_envs(username: str) -> list: