fix: smarter CONDA_PREFIX resolution during hpacker install (#93)

Author: josejimenezluna

src/bioemu/hpacker_setup/setup_hpacker.py

@@ -2,6 +2,8 @@
 import os
 import subprocess
 
+from bioemu.utils import get_conda_prefix
+
 HPACKER_INSTALL_SCRIPT = os.path.join(
     os.path.dirname(os.path.realpath(__file__)), "setup_sidechain_relax.sh"
 )
@@ -19,12 +21,9 @@ def ensure_hpacker_install(
     Ensures hpacker and its dependencies are installed under conda environment
     named `envname`
     """
-    conda_root = os.getenv("CONDA_ROOT", None)
-    if conda_root is None:
-        # Attempt $CONDA_PREFIX_1
-        conda_root = os.getenv("CONDA_PREFIX_1", None)
-    assert conda_root is not None, "conda required to install hpacker environment"
-    conda_envs = os.listdir(os.path.join(conda_root, "envs"))
+    conda_root = get_conda_prefix()
+    env_dir = os.path.join(conda_root, "envs")
+    conda_envs = os.listdir(os.path.join(conda_root, "envs")) if os.path.exists(env_dir) else []
 
     if envname not in conda_envs:
         logger.info("Setting up hpacker dependencies...")