Update atst to atat

atat/utils/__init__.py

@@ -0,0 +1,49 @@
+import hashlib
+import re
+
+from sqlalchemy.exc import IntegrityError
+
+from atat.database import db
+from atat.domain.exceptions import AlreadyExistsError
+
+
+def first_or_none(predicate, lst):
+    return next((x for x in lst if predicate(x)), None)
+
+
+def getattr_path(obj, path, default=None):
+    _obj = obj
+    for item in path.split("."):
+        if isinstance(_obj, dict):
+            _obj = _obj.get(item)
+        else:
+            _obj = getattr(_obj, item, default)
+    return _obj
+
+
+def camel_to_snake(camel_cased):
+    s1 = re.sub("(.)([A-Z][a-z]+)", r"\1_\2", camel_cased)
+    return re.sub("([a-z0-9])([A-Z])", r"\1_\2", s1).lower()
+
+
+def snake_to_camel(snake_cased):
+    parts = snake_cased.split("_")
+    return f"{parts[0]}{''.join([w.capitalize() for w in parts[1:]])}"
+
+
+def pick(keys, dct):
+    _keys = set(keys)
+    return {k: v for (k, v) in dct.items() if k in _keys}
+
+
+def commit_or_raise_already_exists_error(message):
+    try:
+        db.session.commit()
+    except IntegrityError:
+        db.session.rollback()
+        raise AlreadyExistsError(message)
+
+
+def sha256_hex(string):
+    hsh = hashlib.sha256(string.encode())
+    return hsh.digest().hex()