1 files changed, 21 insertions, 0 deletions
diff --git a/src/ansible_compat/prerun.py b/src/ansible_compat/prerun.py
new file mode 100644
index 0000000..6dfa44f
--- /dev/null
+++ b/src/ansible_compat/prerun.py
@@ -0,0 +1,21 @@
+"""Utilities for configuring ansible runtime environment."""
+import hashlib
+import os
+from pathlib import Path
+
+
+def get_cache_dir(project_dir: Path) -> Path:
+    """Compute cache directory to be used based on project path."""
+    # we only use the basename instead of the full path in order to ensure that
+    # we would use the same key regardless the location of the user home
+    # directory or where the project is clones (as long the project folder uses
+    # the same name).
+    basename = project_dir.resolve().name.encode(encoding="utf-8")
+    # 6 chars of entropy should be enough
+    cache_key = hashlib.sha256(basename).hexdigest()[:6]
+    cache_dir = (
+        Path(os.getenv("XDG_CACHE_HOME", "~/.cache")).expanduser()
+        / "ansible-compat"
+        / cache_key
+    )
+    return cache_dir