ansible-galaxy fix scm dependency error (#81599)

* ansible-galaxy fix scm dependency error

  also changed usage of 'virtual colleciton' to actual type
  avoid error by filtering out virtual collections that dont have
expected properties

simplified as per webknjaz

* Update lib/ansible/galaxy/collection/__init__.py
Co-authored-by: Sviatoslav Sydorenko <wk.cvs.github@sydorenko.org.ua>

changelogs/fragments/galaxy_dep_res_msgs.yml

@@ -0,0 +1,4 @@
+minor_changes:
+    - ansible-galaxy dependency resolution messages have changed the unexplained 'virtual' collection for the specific type ('scm', 'dir', etc) that is more user friendly
+bugfixes:
+    - ansible-galaxy error on dependency resolution will not error itself due to 'virtual' collections not having a name/namespace.

lib/ansible/galaxy/collection/__init__.py

@@ -544,7 +544,7 @@ def download_collections(
         for fqcn, concrete_coll_pin in dep_map.copy().items():  # FIXME: move into the provider
             if concrete_coll_pin.is_virtual:
                 display.display(
-                    'Virtual collection {coll!s} is not downloadable'.
+                    '{coll!s} is not downloadable'.
                     format(coll=to_text(concrete_coll_pin)),
                 )
                 continue
@@ -741,7 +741,7 @@ def install_collections(
         for fqcn, concrete_coll_pin in dependency_map.items():
             if concrete_coll_pin.is_virtual:
                 display.vvvv(
-                    "'{coll!s}' is virtual, skipping.".
+                    "Encountered {coll!s}, skipping.".
                     format(coll=to_text(concrete_coll_pin)),
                 )
                 continue
@@ -1868,8 +1868,7 @@ def _resolve_depenency_map(
         raise AnsibleError('\n'.join(error_msg_lines)) from dep_exc
     except CollectionDependencyInconsistentCandidate as dep_exc:
         parents = [
-            "%s.%s:%s" % (p.namespace, p.name, p.ver)
-            for p in dep_exc.criterion.iter_parent()
+            str(p) for p in dep_exc.criterion.iter_parent()
             if p is not None
         ]
 

lib/ansible/galaxy/dependency_resolution/dataclasses.py

@@ -463,8 +463,8 @@ class _ComputedReqKindsMixin:
     def __unicode__(self):
         if self.fqcn is None:
             return (
-                u'"virtual collection Git repo"' if self.is_scm
-                else u'"virtual collection namespace"'
+                f'{self.type} collection from a Git repo' if self.is_scm
+                else f'{self.type} collection from a namespace'
             )
 
         return (
@@ -504,14 +504,14 @@ class _ComputedReqKindsMixin:
     @property
     def namespace(self):
         if self.is_virtual:
-            raise TypeError('Virtual collections do not have a namespace')
+            raise TypeError(f'{self.type} collections do not have a namespace')
 
         return self._get_separate_ns_n_name()[0]
 
     @property
     def name(self):
         if self.is_virtual:
-            raise TypeError('Virtual collections do not have a name')
+            raise TypeError(f'{self.type} collections do not have a name')
 
         return self._get_separate_ns_n_name()[-1]