feat(manager): enable pipenv lockfile maintance (#6096)

lib/manager/pipenv/__snapshots__/artifacts.spec.ts.snap

@@ -57,6 +57,29 @@ Array [
 ]
 `;
 
+exports[`.updateArtifacts() returns updated Pipenv.lock when doing lockfile maintenance 1`] = `
+Array [
+  Object {
+    "cmd": "pipenv lock",
+    "options": Object {
+      "cwd": "/tmp/github/some/repo",
+      "encoding": "utf-8",
+      "env": Object {
+        "HOME": "/home/user",
+        "HTTPS_PROXY": "https://example.com",
+        "HTTP_PROXY": "http://example.com",
+        "LANG": "en_US.UTF-8",
+        "LC_ALL": "en_US",
+        "NO_PROXY": "localhost",
+        "PATH": "/tmp/path",
+        "PIPENV_CACHE_DIR": "/tmp/renovate/cache/others/pipenv",
+      },
+      "timeout": 900000,
+    },
+  },
+]
+`;
+
 exports[`.updateArtifacts() returns updated Pipfile.lock 1`] = `
 Array [
   Object {

lib/manager/pipenv/artifacts.spec.ts

@@ -34,6 +34,7 @@ const config = {
 };
 
 const dockerConfig = { ...config, binarySource: BinarySource.Docker };
+const lockMaintenceConfig = { ...config, isLockFileMaintenance: true };
 
 describe('.updateArtifacts()', () => {
   let pipFileLock;
@@ -139,4 +140,21 @@ describe('.updateArtifacts()', () => {
       })
     ).toMatchSnapshot();
   });
+  it('returns updated Pipenv.lock when doing lockfile maintenance', async () => {
+    platform.getFile.mockResolvedValueOnce('Current Pipfile.lock');
+    const execSnapshots = mockExecAll(exec);
+    platform.getRepoStatus.mockResolvedValue({
+      modified: ['Pipfile.lock'],
+    } as StatusResult);
+    fs.readFile.mockReturnValueOnce('New Pipfile.lock' as any);
+    expect(
+      await pipenv.updateArtifacts({
+        packageFileName: 'Pipfile',
+        updatedDeps: [],
+        newPackageFileContent: '{}',
+        config: lockMaintenceConfig,
+      })
+    ).not.toBeNull();
+    expect(execSnapshots).toMatchSnapshot();
+  });
 });

lib/manager/pipenv/artifacts.ts

@@ -1,4 +1,4 @@
-import { ensureDir, outputFile, readFile } from 'fs-extra';
+import { ensureDir, outputFile, readFile, remove } from 'fs-extra';
 import { join } from 'upath';
 import { exec, ExecOptions } from '../../util/exec';
 import { logger } from '../../logger';
@@ -56,6 +56,9 @@ export async function updateArtifacts({
     const localPipfileFileName = join(config.localDir, pipfileName);
     await outputFile(localPipfileFileName, newPipfileContent);
     const localLockFileName = join(config.localDir, lockFileName);
+    if (config.isLockFileMaintenance) {
+      await remove(localLockFileName);
+    }
     const cmd = 'pipenv lock';
     const tagConstraint = getPythonConstraint(existingLockFileContent, config);
     const execOptions: ExecOptions = {

lib/manager/pipenv/index.ts

@@ -4,6 +4,7 @@ export { extractPackageFile } from './extract';
 export { updateArtifacts } from './artifacts';
 
 export const language = LANGUAGE_PYTHON;
+export const supportsLockFileMaintenance = true;
 
 export const defaultConfig = {
   fileMatch: ['(^|/)Pipfile$'],