feat(manager/uv): extract packages from lockfile (#31137)

Co-authored-by: Michael Kriese <michael.kriese@visualon.de>

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

@@ -411,5 +411,85 @@ describe('modules/manager/pep621/extract', () => {
         ],
       });
     });
+
+    it('should resolve lockedVersions from uv.lock', async () => {
+      fs.readLocalFile.mockResolvedValue(
+        codeBlock`
+          version = 1
+          requires-python = ">=3.11"
+
+          [[package]]
+          name = "attrs"
+          version = "24.2.0"
+          source = { registry = "https://pypi.org/simple" }
+          sdist = { url = "https://files.pythonhosted.org/packages/fc/0f/aafca9af9315aee06a89ffde799a10a582fe8de76c563ee80bbcdc08b3fb/attrs-24.2.0.tar.gz", hash = "sha256:5cfb1b9148b5b086569baec03f20d7b6bf3bcacc9a42bebf87ffaaca362f6346", size = 792678 }
+          wheels = [
+              { url = "https://files.pythonhosted.org/packages/6a/21/5b6702a7f963e95456c0de2d495f67bf5fd62840ac655dc451586d23d39a/attrs-24.2.0-py3-none-any.whl", hash = "sha256:81921eb96de3191c8258c199618104dd27ac608d9366f5e35d011eae1867ede2", size = 63001 },
+          ]
+
+          [[package]]
+          name = "pep621-uv"
+          version = "0.1.0"
+          source = { virtual = "." }
+          dependencies = [
+              { name = "attrs" },
+          ]
+
+          [package.metadata]
+          requires-dist = [{ name = "attrs", specifier = ">=24.1.0" }]
+        `,
+      );
+
+      const res = await extractPackageFile(
+        codeBlock`
+          [project]
+          name = "pep621-uv"
+          version = "0.1.0"
+          dependencies = ["attrs>=24.1.0"]
+          requires-python = ">=3.11"
+        `,
+        'pyproject.toml',
+      );
+      expect(res).toMatchObject({
+        extractedConstraints: { python: '>=3.11' },
+        deps: [
+          {
+            packageName: 'attrs',
+            depName: 'attrs',
+            datasource: 'pypi',
+            depType: 'project.dependencies',
+            currentValue: '>=24.1.0',
+            lockedVersion: '24.2.0',
+          },
+        ],
+      });
+    });
+
+    it('should resolve dependencies without locked versions on invalid uv.lock', async () => {
+      fs.readLocalFile.mockResolvedValue(codeBlock`invalid_toml`);
+
+      const res = await extractPackageFile(
+        codeBlock`
+          [project]
+          name = "pep621-uv"
+          version = "0.1.0"
+          dependencies = ["attrs>=24.1.0"]
+          requires-python = ">=3.11"
+        `,
+        'pyproject.toml',
+      );
+      expect(res).toMatchObject({
+        extractedConstraints: { python: '>=3.11' },
+        deps: [
+          {
+            packageName: 'attrs',
+            depName: 'attrs',
+            datasource: 'pypi',
+            depType: 'project.dependencies',
+            currentValue: '>=24.1.0',
+          },
+        ],
+      });
+    });
   });
 });

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

@@ -5,13 +5,14 @@ import { logger } from '../../../../logger';
 import { exec } from '../../../../util/exec';
 import type { ExecOptions, ToolConstraint } from '../../../../util/exec/types';
 import { getSiblingFileName, readLocalFile } from '../../../../util/fs';
+import { Result } from '../../../../util/result';
 import type {
   PackageDependency,
   UpdateArtifact,
   UpdateArtifactsResult,
   Upgrade,
 } from '../../types';
-import { type PyProject } from '../schema';
+import { type PyProject, UvLockfileSchema } from '../schema';
 import { depTypes, parseDependencyList } from '../utils';
 import type { PyProjectProcessor } from './types';
 
@@ -34,11 +35,31 @@ export class UvProcessor implements PyProjectProcessor {
     return deps;
   }
 
-  extractLockedVersions(
+  async extractLockedVersions(
     project: PyProject,
     deps: PackageDependency[],
     packageFile: string,
   ): Promise<PackageDependency[]> {
+    const lockFileName = getSiblingFileName(packageFile, 'uv.lock');
+    const lockFileContent = await readLocalFile(lockFileName, 'utf8');
+    if (lockFileContent) {
+      const { val: lockFileMapping, err } = Result.parse(
+        lockFileContent,
+        UvLockfileSchema,
+      ).unwrap();
+
+      if (err) {
+        logger.debug({ packageFile, err }, `Error parsing uv lock file`);
+      } else {
+        for (const dep of deps) {
+          const packageName = dep.packageName;
+          if (packageName && packageName in lockFileMapping) {
+            dep.lockedVersion = lockFileMapping[packageName];
+          }
+        }
+      }
+    }
+
     return Promise.resolve(deps);
   }
 

lib/modules/manager/pep621/schema.ts

@@ -79,3 +79,18 @@ export const PdmLockfileSchema = Toml.pipe(
     ),
   )
   .transform((lock) => ({ lock }));
+
+export const UvLockfileSchema = Toml.pipe(
+  z.object({
+    package: LooseArray(
+      z.object({
+        name: z.string(),
+        version: z.string(),
+      }),
+    ),
+  }),
+).transform(({ package: pkg }) =>
+  Object.fromEntries(
+    pkg.map(({ name, version }): [string, string] => [name, version]),
+  ),
+);