lib.version.Version.__resolved_id(): Resolve VERSION to core

__resolved_id() returns the full version if only VERSION was specified, fix
that.

Also: raise Version.Error instead of a bare Exception.

Tests written by AI.

Assisted-by: unsloth/Qwen3.8-27B-GGUF:Q4_K_M with pi.dev v0.85.1
Signed-off-by: Jan Lindemann <jan@janware.com>

src/python/jw/pkg/lib/version/Version.py

@@ -38,11 +38,17 @@ class Version:  # export
             raise Version.Error(
                 f'Tried to look up version of {self.base_name} without lookup function'
             )
-        version = self.__lookup_version(self.base_name)
-        if self.__spec == 'REVISION':
-            parts = version.split('-', 1)
-            return parts[1] if len(parts) == 2 else ''
-        return version
+        resolved = self.__lookup_version(self.base_name)
+        if self.__spec == 'VERSION-REVISION':
+            return resolved
+        parts = resolved.split('-')
+        match self.__spec:
+            case 'VERSION':
+                return parts[0]
+            case 'REVISION':
+                return parts[1] if len(parts) == 2 else ''
+            case _:
+                raise Version.Error(f'Invalid version specifier "{self.__spec}"')
 
     def __id(self, untemplate: bool, throw: bool = True) -> str:
         if not untemplate:
@@ -145,8 +151,8 @@ class Version:  # export
 
     def id(self, untemplate: bool, include_revision: bool = True) -> str:
         """Return the version id: the raw spec if untemplate is False,
-        else the resolved version. With include_revision = False a
-        VERSION spec yields the core version.
+        else the resolved version. A VERSION spec yields the core
+        version.
         """
         if not include_revision and self.__spec == 'VERSION':
             return self.core(untemplate)

test/unit/python/jw/pkg/lib/version/test.py

@@ -62,7 +62,7 @@ except Version.Error:
 
 # The lookup resolves the macros
 d = Dependency('foo = VERSION', app.get_version)
-assert d.constraint_str() == 'foo = 1.2.3-45'
+assert d.constraint_str() == 'foo = 1.2.3'
 d = Dependency('foo = VERSION', app.get_version)
 assert d.constraint_str(include_revision = False) == 'foo = 1.2.3'
 # Only the VERSION macro loses its revision, VERSION-REVISION and
@@ -89,7 +89,7 @@ except Dependency.Error:
 
 # The lookup uses the base name, not the subpackage name
 d = Dependency('foo-devel = VERSION', app.get_version)
-assert d.constraint_str() == 'foo-devel = 1.2.3-45'
+assert d.constraint_str() == 'foo-devel = 1.2.3'
 # Unknown projects fail when untemplating
 try:
     Dependency('baz = VERSION', app.get_version).constraint_str()
@@ -105,8 +105,8 @@ def mapper(project: str) -> str:
     return '1.2.3-45'
 
 d = Dependency('foo = VERSION', mapper)
-assert d.constraint_str() == 'foo = 1.2.3-45'
-assert d.constraint_str() == 'foo = 1.2.3-45'
+assert d.constraint_str() == 'foo = 1.2.3'
+assert d.constraint_str() == 'foo = 1.2.3'
 assert calls == ['foo']
 
 # as_range expands full boundaries into a revision range
@@ -122,12 +122,12 @@ constraint = d.constraint_str(untemplated = False, as_range = True)
 assert constraint == 'foo >= VERSION-REVISION foo < 1.2.4'
 # VERSION is not full, so a VERSION constraint is not expanded
 d = Dependency('foo = VERSION', app.get_version)
-assert d.constraint_str(as_range = True) == 'foo = 1.2.3-45'
+assert d.constraint_str(as_range = True) == 'foo = 1.2.3'
 d = Dependency('foo >= VERSION', app.get_version)
-assert d.constraint_str(as_range = True) == 'foo >= 1.2.3-45'
+assert d.constraint_str(as_range = True) == 'foo >= 1.2.3'
 # '<' and '<=' are not expanded
 d = Dependency('foo <= VERSION', app.get_version)
-assert d.constraint_str(as_range = True) == 'foo <= 1.2.3-45'
+assert d.constraint_str(as_range = True) == 'foo <= 1.2.3'
 # versions without a full major.minor.micro-revision are not expanded
 d = Dependency('foo = 1.0', app.get_version)
 assert d.constraint_str(as_range = True) == 'foo = 1.0'
@@ -213,7 +213,7 @@ assert deps[2].constraint_str() == 'baz'
 
 # parse_deps_spec passes the lookup to the created packages
 deps = Dependency.parse_deps_spec('foo = VERSION, bar', app.get_version)
-assert deps[0].constraint_str() == 'foo = 1.2.3-45'
+assert deps[0].constraint_str() == 'foo = 1.2.3'
 assert deps[1].constraint_str() == 'bar'
 
 # Malformed specs are rejected when parsed