api: abstract_paths_from_template sequence key - ignore only format_s…

…pec format

python/tank/api.py

@@ -21,6 +21,7 @@
 from .errors import TankError, TankMultipleMatchingTemplatesError
 from .path_cache import PathCache
 from .template import read_templates
+from .templatekey import SequenceKey
 from . import constants
 from . import pipelineconfig
 from . import pipelineconfig_utils
@@ -688,10 +689,20 @@ def abstract_paths_from_template(self, template, fields):
             k.name for k in search_template.keys.values() if k.is_abstract
         ]
 
+        # skip abstract SequenceKey declared as format_spec_format: "FORMAT:"
+        # then we can list properly existing paths
+        skip_keys = []
+        for k in st_abstract_key_names:
+            if k not in fields:
+                continue
+            if not isinstance(k, SequenceKey):
+                continue
+            if not k.is_framespec_format(fields[k]):
+                continue
+            skip_keys.append(k)
+
         # now carry out a regular search based on the template
-        # skip abstract keys to fetch paths in case of special value
-        # like SequenceKey with "FORMAT:" value
-        found_files = self.paths_from_template(search_template, fields, skip_keys=st_abstract_key_names)
+        found_files = self.paths_from_template(search_template, fields, skip_keys=skip_keys)
 
         # now collapse down the search matches for any abstract fields,
         # and add the leaf level if necessary

python/tank/templatekey.py

@@ -1112,9 +1112,7 @@ def validate(self, value):
         error_msg += "Valid frame specs: %s\n" % str(self._frame_specs)
         error_msg += "Valid format strings: %s\n" % full_format_strings
 
-        if isinstance(value, six.string_types) and value.startswith(
-            self.FRAMESPEC_FORMAT_INDICATOR
-        ):
+        if self.is_framespec_format(value):
             # FORMAT: YXZ string - check that XYZ is in VALID_FORMAT_STRINGS
             pattern = self._extract_format_string(value)
             if pattern in self.VALID_FORMAT_STRINGS:
@@ -1142,11 +1140,11 @@ def validate(self, value):
         else:
             return super(SequenceKey, self).validate(value)
 
-    def _as_string(self, value):
+    def is_framespec_format(self, value):
+        return isinstance(value, six.string_types) and value.startswith(self.FRAMESPEC_FORMAT_INDICATOR)
 
-        if isinstance(value, six.string_types) and value.startswith(
-            self.FRAMESPEC_FORMAT_INDICATOR
-        ):
+    def _as_string(self, value):
+        if self.is_framespec_format(value):
             # this is a FORMAT: XYZ - convert it to the proper resolved frame spec
             pattern = self._extract_format_string(value)
             return self._resolve_frame_spec(pattern, self.format_spec)
@@ -1180,9 +1178,7 @@ def _extract_format_string(self, value):
         """
         Returns XYZ given the string "FORMAT:    XYZ"
         """
-        if isinstance(value, six.string_types) and value.startswith(
-            self.FRAMESPEC_FORMAT_INDICATOR
-        ):
+        if self.is_framespec_format(value):
             pattern = value.replace(self.FRAMESPEC_FORMAT_INDICATOR, "").strip()
         else:
             # passthrough