Replace redundant HashFunctionNames with HashFunctionNameEnum

And fix a typo.

lib/galaxy/schema/schema.py

@@ -50,6 +50,7 @@
     OffsetNaiveDatetime,
     RelativeUrl,
 )
+from galaxy.util.hash_util import HashFunctionNameEnum
 from galaxy.util.sanitize_html import sanitize_html
 
 USER_MODEL_CLASS = Literal["User"]
@@ -121,15 +122,6 @@ class DatasetCollectionPopulatedState(str, Enum):
     FAILED = "failed"  # some problem populating state, won't be populated
 
 
-class HashFunctionNames(str, Enum):
-    """Hash function names that can be used to generate checksums for datasets."""
-
-    md5 = "MD5"
-    sha1 = "SHA-1"
-    sha256 = "SHA-256"
-    sha512 = "SHA-512"
-
-
 # Generic and common Field annotations that can be reused across models
 
 RelativeUrlField = Annotated[
@@ -733,7 +725,7 @@ class DatasetHash(Model):
         title="ID",
         description="Encoded ID of the dataset hash.",
     )
-    hash_function: HashFunctionNames = Field(
+    hash_function: HashFunctionNameEnum = Field(
         ...,
         title="Hash Function",
         description="The hash function used to generate the hash.",

lib/galaxy/util/hash_util.py

@@ -34,7 +34,7 @@
 
 
 class HashFunctionNameEnum(str, Enum):
-    """Particular pieces of information that can be requested for a dataset."""
+    """Hash function names that can be used to generate checksums for files."""
 
     md5 = "MD5"
     sha1 = "SHA-1"

lib/galaxy/webapps/galaxy/services/datasets.py

@@ -537,11 +537,11 @@ def get_drs_object(self, trans: ProvidesHistoryContext, object_id: str, request_
             checksums.append(Checksum(type=type, checksum=checksum))
 
         if len(checksums) == 0:
-            hash_funciton = HashFunctionNameEnum.md5
+            hash_function = HashFunctionNameEnum.md5
             request = ComputeDatasetHashTaskRequest(
                 dataset_id=dataset_instance.dataset.id,
                 extra_files_path=None,
-                hash_function=hash_funciton,
+                hash_function=hash_function,
                 user=None,
             )
             compute_dataset_hash.delay(request=request, task_user_id=getattr(trans.user, "id", None))