Merge pull request #6 from SpotlightKid/fix/pickle-cache-dir

fix: use user-writable cache dir for opcodes pickle file

setup.py

@@ -24,6 +24,7 @@
         ]
     },
     install_requires=[
+        'appdirs',
         'lark-parser>=0.7.8',
         'pyyaml>=6.0.0'
     ],

sfzlint/spec.py

@@ -5,6 +5,7 @@
 from functools import lru_cache
 from pathlib import Path
 from numbers import Real  # int or float
+import appdirs
 import yaml
 from . import validators
 
@@ -198,9 +199,11 @@ def _validator(data_value):
 
 
 def _pickled(name, fn):
-    p_file = Path(__file__).parent / f'{name}.pickle'
+    user_cache_dir = Path(appdirs.user_cache_dir("sfzlint", "jisaacstone"))
+    p_file = user_cache_dir / f'{name}.pickle'
     if not p_file.exists():
         data = fn()
+        user_cache_dir.mkdir(parents=True, exist_ok=True)
         with p_file.open('wb') as fob:
             pickle.dump(data, fob)
     else:
@@ -210,5 +213,5 @@ def _pickled(name, fn):
 
 
 # pickling as cache cuts script time by ~400ms on my system
-opcodes = _pickled('opcides', lambda: _override(_extract()))
+opcodes = _pickled('opcodes', lambda: _override(_extract()))
 cc_opcodes = {k for k in opcodes if 'cc' in k and 'curvecc' not in k}