fix(manager/uv): apply normalization on sources

lib/modules/manager/pep621/extract.spec.ts

@@ -339,14 +339,15 @@ describe('modules/manager/pep621/extract', () => {
           "dep4",
           "dep5",
           "dep6",
-          "dep7",
+          "dep-with_NORMALIZATION",
         ]
 
         [tool.uv.sources]
         dep2 = { git = "https://github.com/foo/bar" }
         dep3 = { path = "/local-dep.whl" }
         dep4 = { url = "https://example.com" }
         dep5 = { workspace = true }
+        dep_WITH-normalization = { workspace = true }
         `,
         'pyproject.toml',
       );
@@ -382,7 +383,9 @@ describe('modules/manager/pep621/extract', () => {
           depName: 'dep6',
         },
         {
-          depName: 'dep7',
+          depName: 'dep-with_NORMALIZATION',
+          depType: depTypes.uvSources,
+          skipReason: 'inherited-dependency',
         },
       ]);
     });

lib/modules/manager/pep621/processors/uv.spec.ts

@@ -86,7 +86,16 @@ describe('modules/manager/pep621/processors/uv', () => {
         },
       },
     };
-    const dependencies = [{ depName: 'dep1' }, { depName: 'dep2' }];
+    const dependencies = [
+      {
+        depName: 'dep1',
+        packageName: 'dep1',
+      },
+      {
+        depName: 'dep2',
+        packageName: 'dep2',
+      },
+    ];
 
     const result = processor.process(pyproject, dependencies);
 

lib/modules/manager/pep621/processors/uv.ts

@@ -47,11 +47,13 @@ export class UvProcessor implements PyProjectProcessor {
     if (uv.sources) {
       for (const dep of deps) {
         // istanbul ignore if
-        if (!dep.depName) {
+        if (!dep.packageName) {
           continue;
         }
 
-        const depSource = uv.sources[dep.depName];
+        // Using `packageName` as it applies PEP 508 normalization, which is
+        // also applied by uv when matching a source to a dependency.
+        const depSource = uv.sources[dep.packageName];
         if (depSource) {
           dep.depType = depTypes.uvSources;
           if ('url' in depSource) {

lib/modules/manager/pep621/schema.ts

@@ -1,5 +1,6 @@
 import { z } from 'zod';
 import { LooseArray, LooseRecord, Toml } from '../../../util/schema-utils';
+import { normalizePythonDepName } from '../../datasource/pypi/common';
 
 export type PyProject = z.infer<typeof PyProjectSchema>;
 
@@ -65,7 +66,11 @@ const UvSource = z.union([
 
 const UvSchema = z.object({
   'dev-dependencies': DependencyListSchema,
-  sources: LooseRecord(z.string(), UvSource).optional(),
+  sources: LooseRecord(
+    // uv applies the same normalization as for Python dependencies on sources
+    z.string().transform((source) => normalizePythonDepName(source)),
+    UvSource,
+  ).optional(),
 });
 
 export const PyProjectSchema = z.object({