Add configuration option to configure .store folder in pnpm mode

.yarn/versions/81e42c15.yml

@@ -0,0 +1,23 @@
+releases:
+  "@yarnpkg/cli": minor
+  "@yarnpkg/plugin-pnpm": minor
+
+declined:
+  - "@yarnpkg/plugin-compat"
+  - "@yarnpkg/plugin-constraints"
+  - "@yarnpkg/plugin-dlx"
+  - "@yarnpkg/plugin-essentials"
+  - "@yarnpkg/plugin-init"
+  - "@yarnpkg/plugin-interactive-tools"
+  - "@yarnpkg/plugin-nm"
+  - "@yarnpkg/plugin-npm-cli"
+  - "@yarnpkg/plugin-pack"
+  - "@yarnpkg/plugin-patch"
+  - "@yarnpkg/plugin-pnp"
+  - "@yarnpkg/plugin-stage"
+  - "@yarnpkg/plugin-typescript"
+  - "@yarnpkg/plugin-version"
+  - "@yarnpkg/plugin-workspace-tools"
+  - "@yarnpkg/builder"
+  - "@yarnpkg/core"
+  - "@yarnpkg/doctor"

packages/acceptance-tests/pkg-tests-specs/sources/features/pnpmStoreLocation.test.ts

@@ -0,0 +1,47 @@
+import {xfs, ppath} from '@yarnpkg/fslib';
+
+const {
+  fs: {FsLinkType, determineLinkType},
+} = require(`pkg-tests-core`);
+
+const customStoreFolderName = `.customStore`;
+
+describe(`Features`, () => {
+  describe(`pnpmStoreLocation`, () => {
+    test(
+      `it should create the store at custom path and symlink all files to the custom store location`,
+      makeTemporaryEnv(
+        {
+          dependencies: {[`no-deps`]: `1.0.0`},
+        },
+        {
+          nodeLinker: `pnpm`,
+          pnpmStoreFolder: customStoreFolderName,
+          winLinkType: `symlinks`,
+        },
+        async ({path, run, source}) => {
+          await run(`install`);
+
+          // Ensure that the customized folder is created
+          const absolutePnpmStorePath = ppath.join(path, customStoreFolderName);
+          expect(xfs.existsSync(absolutePnpmStorePath)).toEqual(true);
+
+          // Ensure that the default node_modules/.store folder is not created
+          expect(xfs.existsSync(ppath.join(path, `node_modules`, `.store`))).toEqual(false);
+
+          // Ensure that the installed package is a symbolic link
+          const installedPackagePath = ppath.join(path, `node_modules`, `no-deps`);
+          expect(await determineLinkType(installedPackagePath)).toEqual(FsLinkType.SYMBOLIC);
+
+          // Ensure that the link target is a relative path
+          const installedPackageLinkTarget = await xfs.readlinkPromise(installedPackagePath);
+          expect(ppath.isAbsolute(installedPackageLinkTarget)).toBeFalsy();
+
+          // Ensure that the resolved link target is within the customized pnpmStoreFolder.
+          const resolvedPackageLinkTarget = ppath.join(ppath.dirname(installedPackagePath), installedPackageLinkTarget);
+          expect(ppath.contains(absolutePnpmStorePath, resolvedPackageLinkTarget)).toBeTruthy();
+        },
+      ),
+    );
+  });
+});

packages/docusaurus/static/configuration/yarnrc.json

@@ -481,6 +481,14 @@
       "type": "string",
       "default": "pnp"
     },
+    "pnpmStoreFolder": {
+      "_package": "@yarnpkg/plugin-pnpm",
+      "title": "Path where the pnpm store will be stored",
+      "description": "By default, the store is stored in the `node_modules/.store` of the project. Sometimes in CI scenario's it is convenient to store this in a different location so it can be cached and reused.",
+      "type": "string",
+      "format": "uri-reference",
+      "examples": [".cache/.store"]
+    },
     "winLinkType": {
       "_package": "@yarnpkg/core",
       "title": "Define whether to use junctions or symlinks when creating links on Windows.",

packages/plugin-pnpm/sources/PnpmLinker.ts

@@ -309,7 +309,7 @@ function getNodeModulesLocation(project: Project) {
 }
 
 function getStoreLocation(project: Project) {
-  return ppath.join(getNodeModulesLocation(project), `.store`);
+  return project.configuration.get(`pnpmStoreFolder`);
 }
 
 function getPackagePaths(locator: Locator, {project}: {project: Project}) {

packages/plugin-pnpm/sources/index.ts

@@ -1,10 +1,24 @@
-import {Plugin}     from '@yarnpkg/core';
+import {Plugin, SettingsType} from '@yarnpkg/core';
+import {PortablePath}         from '@yarnpkg/fslib';
 
-import {PnpmLinker} from './PnpmLinker';
+import {PnpmLinker}           from './PnpmLinker';
 
 export {PnpmLinker};
 
+declare module '@yarnpkg/core' {
+  interface ConfigurationValueMap {
+    pnpmStoreFolder: PortablePath;
+  }
+}
+
 const plugin: Plugin = {
+  configuration: {
+    pnpmStoreFolder: {
+      description: `By default, the store is stored in the 'node_modules/.store' of the project. Sometimes in CI scenario's it is convenient to store this in a different location so it can be cached and reused.`,
+      type: SettingsType.ABSOLUTE_PATH,
+      default: `./node_modules/.store`,
+    },
+  },
   linkers: [
     PnpmLinker,
   ],