FIX: Remove noncompliant character as session delimeter

Author: mgxd

src/smriprep/cli/run.py

@@ -687,7 +687,6 @@ def build_workflow(opts, retval):
         # XXX Makes strong assumption of legacy layout
         smriprep_dir = str(output_dir / 'smriprep')
         warnings.warn(
-            f'Received DEPRECATED --fast-track flag. Adding {smriprep_dir} to --derivatives list.'
             f'Received DEPRECATED --fast-track flag. Adding {smriprep_dir} to --derivatives list.',
             stacklevel=1,
         )

src/smriprep/utils/misc.py

@@ -111,21 +111,21 @@ def stringify_sessions(lst: list[str], max_length: int = 10, digest_size: int =
     >>> stringify_sessions(['a'])
     'a'
     >>> stringify_sessions(['a', 'b', 'c'])
-    'a+b+c'
+    'a-b-c'
     >>> stringify_sessions(['a', 'b', 'toolong'])
-    'multi+7c22'
+    'multi-32b3'
     >>> stringify_sessions(['a', 'b', 'toolong'], max_length=12)
-    'a+b+toolong'
+    'a-b-toolong'
     >>> stringify_sessions(['a', 'b', 'toolong'], digest_size=4)
-    'multi+dd8bb349'
+    'multi-f1edd4fd'
 
     """
     if len(lst) == 1:
         return lst[0]
 
-    ses_str = '+'.join(lst)
+    ses_str = '-'.join(lst)
     if len(ses_str) > max_length:
         from hashlib import blake2b
 
-        ses_str = f'multi+{blake2b(ses_str.encode(), digest_size=digest_size).hexdigest()}'
+        ses_str = f'multi-{blake2b(ses_str.encode(), digest_size=digest_size).hexdigest()}'
     return ses_str

src/smriprep/workflows/base.py

@@ -178,7 +178,7 @@ def init_smriprep_wf(
     for subject_id, session_ids in subject_session_list:
         # ('01', None) -> sub-01_wf
         # ('01', 'pre') -> sub-01_ses-pre_wf
-        # ('01', ['pre', 'post']) -> sub-01_ses-pre+post_wf
+        # ('01', ['pre', 'post']) -> sub-01_ses-pre-post_wf
 
         name = f'sub-{subject_id}_wf'
         if session_ids: