Update 0001-support-caching-deps-for-monorepos.md

Co-authored-by: Alena Sviridenko <alenasviridenko@github.com>

.github/workflows/e2e-cache.yml

@@ -35,39 +35,6 @@ jobs:
         run: __tests__/verify-node.sh "${{ matrix.node-version }}"
         shell: bash
 
-  node-pnpm-depencies-caching:
-    name: Test pnpm (Node ${{ matrix.node-version}}, ${{ matrix.os }})
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
-        node-version: [12, 14, 16]
-    steps:
-      - uses: actions/checkout@v2
-      - name: Install pnpm
-        uses: pnpm/action-setup@v2
-        with:
-          version: 6.10.0
-      - name: Generate pnpm file
-        run: pnpm install
-      - name: Remove dependencies
-        shell: pwsh
-        run: Remove-Item node_modules -Force -Recurse
-      - name: Clean global cache
-        run: rm -rf ~/.pnpm-store
-        shell: bash
-      - name: Setup Node
-        uses: ./
-        with:
-          node-version: ${{ matrix.node-version }}
-          cache: 'pnpm'
-      - name: Install dependencies
-        run: pnpm install
-      - name: Verify node and pnpm
-        run: __tests__/verify-node.sh "${{ matrix.node-version }}"
-        shell: bash
-
   node-yarn1-depencies-caching:
     name: Test yarn 1 (Node ${{ matrix.node-version}}, ${{ matrix.os }})
     runs-on: ${{ matrix.os }}

README.md

@@ -7,7 +7,7 @@
 This action provides the following functionality for GitHub Actions users:
 
 - Optionally downloading and caching distribution of the requested Node.js version, and adding it to the PATH
-- Optionally caching npm/yarn/pnpm dependencies
+- Optionally caching npm/yarn dependencies
 - Registering problem matchers for error output
 - Configuring authentication for GPR or npm
 
@@ -41,7 +41,7 @@ nvm lts syntax: `lts/erbium`, `lts/fermium`, `lts/*`
 
 ### Caching packages dependencies
 
-The action has a built-in functionality for caching and restoring npm/yarn dependencies. Supported package managers are `npm`, `yarn`, `pnpm`. The `cache` input is optional, and caching is turned off by default.
+The action has a built-in functionality for caching and restoring npm/yarn dependencies. Supported package managers are `npm`, `yarn`. The `cache` input is optional, and caching is turned off by default.
 
 **Caching npm dependencies:**
 ```yaml
@@ -68,28 +68,6 @@ steps:
 ```
 Yarn caching handles both yarn versions: 1 or 2. 
 
-**Caching pnpm (v6.10+) dependencies:**
-```yaml
-# This workflow uses actions that are not certified by GitHub.
-# They are provided by a third-party and are governed by
-# separate terms of service, privacy policy, and support
-# documentation.
-
-# NOTE: pnpm caching support requires pnpm version >= 6.10.0
-
-steps:
-- uses: actions/checkout@v2
-- uses: pnpm/action-setup@646cdf48217256a3d0b80361c5a50727664284f2
-  with:
-    version: 6.10.0
-- uses: actions/setup-node@v2
-  with:
-    node-version: '14'
-    cache: 'pnpm'
-- run: pnpm install
-- run: pnpm test
-```
-
 > At the moment, only `lock` files in the project root are supported.
 
 ### Matrix Testing:

__tests__/cache-restore.test.ts

@@ -14,18 +14,14 @@ describe('cache-restore', () => {
   const platform = process.env.RUNNER_OS;
   const commonPath = '/some/random/path';
   const npmCachePath = `${commonPath}/npm`;
-  const pnpmCachePath = `${commonPath}/pnpm`;
   const yarn1CachePath = `${commonPath}/yarn1`;
   const yarn2CachePath = `${commonPath}/yarn2`;
   const yarnFileHash =
     'b8a0bae5243251f7c07dd52d1f78ff78281dfefaded700a176261b6b54fa245b';
   const npmFileHash =
     'abf7c9b306a3149dcfba4673e2362755503bcceaab46f0e4e6fee0ade493e20c';
-  const pnpmFileHash =
-    '26309058093e84713f38869c50cf1cee9b08155ede874ec1b44ce3fca8c68c70';
   const cachesObject = {
     [npmCachePath]: npmFileHash,
-    [pnpmCachePath]: pnpmFileHash,
     [yarn1CachePath]: yarnFileHash,
     [yarn2CachePath]: yarnFileHash
   };
@@ -34,8 +30,6 @@ describe('cache-restore', () => {
     switch (command) {
       case utils.supportedPackageManagers.npm.getCacheFolderCommand:
         return npmCachePath;
-      case utils.supportedPackageManagers.pnpm.getCacheFolderCommand:
-        return pnpmCachePath;
       case utils.supportedPackageManagers.yarn1.getCacheFolderCommand:
         return yarn1CachePath;
       case utils.supportedPackageManagers.yarn2.getCacheFolderCommand:
@@ -72,8 +66,6 @@ describe('cache-restore', () => {
     hashFilesSpy.mockImplementation((pattern: string) => {
       if (pattern.includes('package-lock.json')) {
         return npmFileHash;
-      } else if (pattern.includes('pnpm-lock.yaml')) {
-        return pnpmFileHash;
       } else if (pattern.includes('yarn.lock')) {
         return yarnFileHash;
       } else {
@@ -105,7 +97,7 @@ describe('cache-restore', () => {
   });
 
   describe('Validate provided package manager', () => {
-    it.each([['npm7'], ['npm6'], ['pnpm6'], ['yarn1'], ['yarn2'], ['random']])(
+    it.each([['npm7'], ['npm6'], ['yarn1'], ['yarn2'], ['random']])(
       'Throw an error because %s is not supported',
       async packageManager => {
         await expect(restoreCache(packageManager)).rejects.toThrowError(
@@ -119,8 +111,7 @@ describe('cache-restore', () => {
     it.each([
       ['yarn', '2.1.2', yarnFileHash],
       ['yarn', '1.2.3', yarnFileHash],
-      ['npm', '', npmFileHash],
+      ['npm', '', npmFileHash]
-      ['pnpm', '', pnpmFileHash]
     ])(
       'restored dependencies for %s',
       async (packageManager, toolVersion, fileHash) => {
@@ -148,8 +139,7 @@ describe('cache-restore', () => {
     it.each([
       ['yarn', '2.1.2', yarnFileHash],
       ['yarn', '1.2.3', yarnFileHash],
-      ['npm', '', npmFileHash],
+      ['npm', '', npmFileHash]
-      ['pnpm', '', pnpmFileHash]
     ])(
       'dependencies are changed %s',
       async (packageManager, toolVersion, fileHash) => {

__tests__/cache-save.test.ts

@@ -1,7 +1,6 @@
 import * as core from '@actions/core';
 import * as cache from '@actions/cache';
 import * as glob from '@actions/glob';
-import fs from 'fs';
 import path from 'path';
 
 import * as utils from '../src/cache-utils';
@@ -13,8 +12,6 @@ describe('run', () => {
     'b8a0bae5243251f7c07dd52d1f78ff78281dfefaded700a176261b6b54fa245b';
   const npmFileHash =
     'abf7c9b306a3149dcfba4673e2362755503bcceaab46f0e4e6fee0ade493e20c';
-  const pnpmFileHash =
-    '26309058093e84713f38869c50cf1cee9b08155ede874ec1b44ce3fca8c68c70';
   const commonPath = '/some/random/path';
   process.env['GITHUB_WORKSPACE'] = path.join(__dirname, 'data');
 
@@ -29,7 +26,6 @@ describe('run', () => {
   let saveCacheSpy: jest.SpyInstance;
   let getCommandOutputSpy: jest.SpyInstance;
   let hashFilesSpy: jest.SpyInstance;
-  let existsSpy: jest.SpyInstance;
 
   beforeEach(() => {
     getInputSpy = jest.spyOn(core, 'getInput');
@@ -65,17 +61,10 @@ describe('run', () => {
       }
     });
 
-    existsSpy = jest.spyOn(fs, 'existsSync');
-    existsSpy.mockImplementation(() => true);
-
     // utils
     getCommandOutputSpy = jest.spyOn(utils, 'getCommandOutput');
   });
 
-  afterEach(() => {
-    existsSpy.mockRestore();
-  });
-
   describe('Package manager validation', () => {
     it('Package manager is not provided, skip caching', async () => {
       inputs['cache'] = '';
@@ -161,23 +150,6 @@ describe('run', () => {
       );
       expect(setFailedSpy).not.toHaveBeenCalled();
     });
-
-    it('should not save cache for pnpm', async () => {
-      inputs['cache'] = 'pnpm';
-      getStateSpy.mockImplementation(() => pnpmFileHash);
-      getCommandOutputSpy.mockImplementationOnce(() => `${commonPath}/pnpm`);
-
-      await run();
-
-      expect(getInputSpy).toHaveBeenCalled();
-      expect(getStateSpy).toHaveBeenCalledTimes(2);
-      expect(getCommandOutputSpy).toHaveBeenCalledTimes(1);
-      expect(debugSpy).toHaveBeenCalledWith(`pnpm path is ${commonPath}/pnpm`);
-      expect(infoSpy).toHaveBeenCalledWith(
-        `Cache hit occurred on the primary key ${pnpmFileHash}, not saving cache.`
-      );
-      expect(setFailedSpy).not.toHaveBeenCalled();
-    });
   });
 
   describe('action saves the cache', () => {
@@ -267,33 +239,6 @@ describe('run', () => {
       );
       expect(setFailedSpy).not.toHaveBeenCalled();
     });
-
-    it('saves cache from pnpm', async () => {
-      inputs['cache'] = 'pnpm';
-      getStateSpy.mockImplementation((name: string) => {
-        if (name === State.CacheMatchedKey) {
-          return pnpmFileHash;
-        } else {
-          return npmFileHash;
-        }
-      });
-      getCommandOutputSpy.mockImplementationOnce(() => `${commonPath}/pnpm`);
-
-      await run();
-
-      expect(getInputSpy).toHaveBeenCalled();
-      expect(getStateSpy).toHaveBeenCalledTimes(2);
-      expect(getCommandOutputSpy).toHaveBeenCalledTimes(1);
-      expect(debugSpy).toHaveBeenCalledWith(`pnpm path is ${commonPath}/pnpm`);
-      expect(infoSpy).not.toHaveBeenCalledWith(
-        `Cache hit occurred on the primary key ${pnpmFileHash}, not saving cache.`
-      );
-      expect(saveCacheSpy).toHaveBeenCalled();
-      expect(infoSpy).toHaveBeenLastCalledWith(
-        `Cache saved with the key: ${npmFileHash}`
-      );
-      expect(setFailedSpy).not.toHaveBeenCalled();
-    });
   });
 
   afterEach(() => {

__tests__/cache-utils.test.ts

@@ -14,10 +14,6 @@ describe('cache-utils', () => {
   function getPackagePath(name: string) {
     if (name === utils.supportedPackageManagers.npm.getCacheFolderCommand) {
       return `${commonPath}/npm`;
-    } else if (
-      name === utils.supportedPackageManagers.pnpm.getCacheFolderCommand
-    ) {
-      return `${commonPath}/pnpm`;
     } else {
       if (name === utils.supportedPackageManagers.yarn1.getCacheFolderCommand) {
         return `${commonPath}/yarn1`;
@@ -38,7 +34,6 @@ describe('cache-utils', () => {
   describe('getPackageManagerInfo', () => {
     it.each<[string, PackageManagerInfo | null]>([
       ['npm', utils.supportedPackageManagers.npm],
-      ['pnpm', utils.supportedPackageManagers.pnpm],
       ['yarn', utils.supportedPackageManagers.yarn1],
       ['yarn1', null],
       ['yarn2', null],

__tests__/data/pnpm-lock.yaml

@@ -1,360 +0,0 @@
-lockfileVersion: 5.3
-
-specifiers:
-  express: ^4.17.1
-
-dependencies:
-  express: 4.17.1
-
-packages:
-
-  /accepts/1.3.7:
-    resolution: {integrity: sha512-Il80Qs2WjYlJIBNzNkK6KYqlVMTbZLXgHx2oT0pU/fjRHyEp+PEfEPY0R3WCwAGVOtauxh1hOxNgIf5bv7dQpA==}
-    engines: {node: '>= 0.6'}
-    dependencies:
-      mime-types: 2.1.31
-      negotiator: 0.6.2
-    dev: false
-
-  /array-flatten/1.1.1:
-    resolution: {integrity: sha1-ml9pkFGx5wczKPKgCJaLZOopVdI=}
-    dev: false
-
-  /body-parser/1.19.0:
-    resolution: {integrity: sha512-dhEPs72UPbDnAQJ9ZKMNTP6ptJaionhP5cBb541nXPlW60Jepo9RV/a4fX4XWW9CuFNK22krhrj1+rgzifNCsw==}
-    engines: {node: '>= 0.8'}
-    dependencies:
-      bytes: 3.1.0
-      content-type: 1.0.4
-      debug: 2.6.9
-      depd: 1.1.2
-      http-errors: 1.7.2
-      iconv-lite: 0.4.24
-      on-finished: 2.3.0
-      qs: 6.7.0
-      raw-body: 2.4.0
-      type-is: 1.6.18
-    dev: false
-
-  /bytes/3.1.0:
-    resolution: {integrity: sha512-zauLjrfCG+xvoyaqLoV8bLVXXNGC4JqlxFCutSDWA6fJrTo2ZuvLYTqZ7aHBLZSMOopbzwv8f+wZcVzfVTI2Dg==}
-    engines: {node: '>= 0.8'}
-    dev: false
-
-  /content-disposition/0.5.3:
-    resolution: {integrity: sha512-ExO0774ikEObIAEV9kDo50o+79VCUdEB6n6lzKgGwupcVeRlhrj3qGAfwq8G6uBJjkqLrhT0qEYFcWng8z1z0g==}
-    engines: {node: '>= 0.6'}
-    dependencies:
-      safe-buffer: 5.1.2
-    dev: false
-
-  /content-type/1.0.4:
-    resolution: {integrity: sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA==}
-    engines: {node: '>= 0.6'}
-    dev: false
-
-  /cookie-signature/1.0.6:
-    resolution: {integrity: sha1-4wOogrNCzD7oylE6eZmXNNqzriw=}
-    dev: false
-
-  /cookie/0.4.0:
-    resolution: {integrity: sha512-+Hp8fLp57wnUSt0tY0tHEXh4voZRDnoIrZPqlo3DPiI4y9lwg/jqx+1Om94/W6ZaPDOUbnjOt/99w66zk+l1Xg==}
-    engines: {node: '>= 0.6'}
-    dev: false
-
-  /debug/2.6.9:
-    resolution: {integrity: sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==}
-    dependencies:
-      ms: 2.0.0
-    dev: false
-
-  /depd/1.1.2:
-    resolution: {integrity: sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak=}
-    engines: {node: '>= 0.6'}
-    dev: false
-
-  /destroy/1.0.4:
-    resolution: {integrity: sha1-l4hXRCxEdJ5CBmE+N5RiBYJqvYA=}
-    dev: false
-
-  /ee-first/1.1.1:
-    resolution: {integrity: sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0=}
-    dev: false
-
-  /encodeurl/1.0.2:
-    resolution: {integrity: sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k=}
-    engines: {node: '>= 0.8'}
-    dev: false
-
-  /escape-html/1.0.3:
-    resolution: {integrity: sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg=}
-    dev: false
-
-  /etag/1.8.1:
-    resolution: {integrity: sha1-Qa4u62XvpiJorr/qg6x9eSmbCIc=}
-    engines: {node: '>= 0.6'}
-    dev: false
-
-  /express/4.17.1:
-    resolution: {integrity: sha512-mHJ9O79RqluphRrcw2X/GTh3k9tVv8YcoyY4Kkh4WDMUYKRZUq0h1o0w2rrrxBqM7VoeUVqgb27xlEMXTnYt4g==}
-    engines: {node: '>= 0.10.0'}
-    dependencies:
-      accepts: 1.3.7
-      array-flatten: 1.1.1
-      body-parser: 1.19.0
-      content-disposition: 0.5.3
-      content-type: 1.0.4
-      cookie: 0.4.0
-      cookie-signature: 1.0.6
-      debug: 2.6.9
-      depd: 1.1.2
-      encodeurl: 1.0.2
-      escape-html: 1.0.3
-      etag: 1.8.1
-      finalhandler: 1.1.2
-      fresh: 0.5.2
-      merge-descriptors: 1.0.1
-      methods: 1.1.2
-      on-finished: 2.3.0
-      parseurl: 1.3.3
-      path-to-regexp: 0.1.7
-      proxy-addr: 2.0.7
-      qs: 6.7.0
-      range-parser: 1.2.1
-      safe-buffer: 5.1.2
-      send: 0.17.1
-      serve-static: 1.14.1
-      setprototypeof: 1.1.1
-      statuses: 1.5.0
-      type-is: 1.6.18
-      utils-merge: 1.0.1
-      vary: 1.1.2
-    dev: false
-
-  /finalhandler/1.1.2:
-    resolution: {integrity: sha512-aAWcW57uxVNrQZqFXjITpW3sIUQmHGG3qSb9mUah9MgMC4NeWhNOlNjXEYq3HjRAvL6arUviZGGJsBg6z0zsWA==}
-    engines: {node: '>= 0.8'}
-    dependencies:
-      debug: 2.6.9
-      encodeurl: 1.0.2
-      escape-html: 1.0.3
-      on-finished: 2.3.0
-      parseurl: 1.3.3
-      statuses: 1.5.0
-      unpipe: 1.0.0
-    dev: false
-
-  /forwarded/0.2.0:
-    resolution: {integrity: sha512-buRG0fpBtRHSTCOASe6hD258tEubFoRLb4ZNA6NxMVHNw2gOcwHo9wyablzMzOA5z9xA9L1KNjk/Nt6MT9aYow==}
-    engines: {node: '>= 0.6'}
-    dev: false
-
-  /fresh/0.5.2:
-    resolution: {integrity: sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac=}
-    engines: {node: '>= 0.6'}
-    dev: false
-
-  /http-errors/1.7.2:
-    resolution: {integrity: sha512-uUQBt3H/cSIVfch6i1EuPNy/YsRSOUBXTVfZ+yR7Zjez3qjBz6i9+i4zjNaoqcoFVI4lQJ5plg63TvGfRSDCRg==}
-    engines: {node: '>= 0.6'}
-    dependencies:
-      depd: 1.1.2
-      inherits: 2.0.3
-      setprototypeof: 1.1.1
-      statuses: 1.5.0
-      toidentifier: 1.0.0
-    dev: false
-
-  /http-errors/1.7.3:
-    resolution: {integrity: sha512-ZTTX0MWrsQ2ZAhA1cejAwDLycFsd7I7nVtnkT3Ol0aqodaKW+0CTZDQ1uBv5whptCnc8e8HeRRJxRs0kmm/Qfw==}
-    engines: {node: '>= 0.6'}
-    dependencies:
-      depd: 1.1.2
-      inherits: 2.0.4
-      setprototypeof: 1.1.1
-      statuses: 1.5.0
-      toidentifier: 1.0.0
-    dev: false
-
-  /iconv-lite/0.4.24:
-    resolution: {integrity: sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==}
-    engines: {node: '>=0.10.0'}
-    dependencies:
-      safer-buffer: 2.1.2
-    dev: false
-
-  /inherits/2.0.3:
-    resolution: {integrity: sha1-Yzwsg+PaQqUC9SRmAiSA9CCCYd4=}
-    dev: false
-
-  /inherits/2.0.4:
-    resolution: {integrity: sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==}
-    dev: false
-
-  /ipaddr.js/1.9.1:
-    resolution: {integrity: sha512-0KI/607xoxSToH7GjN1FfSbLoU0+btTicjsQSWQlh/hZykN8KpmMf7uYwPW3R+akZ6R/w18ZlXSHBYXiYUPO3g==}
-    engines: {node: '>= 0.10'}
-    dev: false
-
-  /media-typer/0.3.0:
-    resolution: {integrity: sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g=}
-    engines: {node: '>= 0.6'}
-    dev: false
-
-  /merge-descriptors/1.0.1:
-    resolution: {integrity: sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E=}
-    dev: false
-
-  /methods/1.1.2:
-    resolution: {integrity: sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4=}
-    engines: {node: '>= 0.6'}
-    dev: false
-
-  /mime-db/1.48.0:
-    resolution: {integrity: sha512-FM3QwxV+TnZYQ2aRqhlKBMHxk10lTbMt3bBkMAp54ddrNeVSfcQYOOKuGuy3Ddrm38I04If834fOUSq1yzslJQ==}
-    engines: {node: '>= 0.6'}
-    dev: false
-
-  /mime-types/2.1.31:
-    resolution: {integrity: sha512-XGZnNzm3QvgKxa8dpzyhFTHmpP3l5YNusmne07VUOXxou9CqUqYa/HBy124RqtVh/O2pECas/MOcsDgpilPOPg==}
-    engines: {node: '>= 0.6'}
-    dependencies:
-      mime-db: 1.48.0
-    dev: false
-
-  /mime/1.6.0:
-    resolution: {integrity: sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==}
-    engines: {node: '>=4'}
-    hasBin: true
-    dev: false
-
-  /ms/2.0.0:
-    resolution: {integrity: sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=}
-    dev: false
-
-  /ms/2.1.1:
-    resolution: {integrity: sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==}
-    dev: false
-
-  /negotiator/0.6.2:
-    resolution: {integrity: sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw==}
-    engines: {node: '>= 0.6'}
-    dev: false
-
-  /on-finished/2.3.0:
-    resolution: {integrity: sha1-IPEzZIGwg811M3mSoWlxqi2QaUc=}
-    engines: {node: '>= 0.8'}
-    dependencies:
-      ee-first: 1.1.1
-    dev: false
-
-  /parseurl/1.3.3:
-    resolution: {integrity: sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ==}
-    engines: {node: '>= 0.8'}
-    dev: false
-
-  /path-to-regexp/0.1.7:
-    resolution: {integrity: sha1-32BBeABfUi8V60SQ5yR6G/qmf4w=}
-    dev: false
-
-  /proxy-addr/2.0.7:
-    resolution: {integrity: sha512-llQsMLSUDUPT44jdrU/O37qlnifitDP+ZwrmmZcoSKyLKvtZxpyV0n2/bD/N4tBAAZ/gJEdZU7KMraoK1+XYAg==}
-    engines: {node: '>= 0.10'}
-    dependencies:
-      forwarded: 0.2.0
-      ipaddr.js: 1.9.1
-    dev: false
-
-  /qs/6.7.0:
-    resolution: {integrity: sha512-VCdBRNFTX1fyE7Nb6FYoURo/SPe62QCaAyzJvUjwRaIsc+NePBEniHlvxFmmX56+HZphIGtV0XeCirBtpDrTyQ==}
-    engines: {node: '>=0.6'}
-    dev: false
-
-  /range-parser/1.2.1:
-    resolution: {integrity: sha512-Hrgsx+orqoygnmhFbKaHE6c296J+HTAQXoxEF6gNupROmmGJRoyzfG3ccAveqCBrwr/2yxQ5BVd/GTl5agOwSg==}
-    engines: {node: '>= 0.6'}
-    dev: false
-
-  /raw-body/2.4.0:
-    resolution: {integrity: sha512-4Oz8DUIwdvoa5qMJelxipzi/iJIi40O5cGV1wNYp5hvZP8ZN0T+jiNkL0QepXs+EsQ9XJ8ipEDoiH70ySUJP3Q==}
-    engines: {node: '>= 0.8'}
-    dependencies:
-      bytes: 3.1.0
-      http-errors: 1.7.2
-      iconv-lite: 0.4.24
-      unpipe: 1.0.0
-    dev: false
-
-  /safe-buffer/5.1.2:
-    resolution: {integrity: sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==}
-    dev: false
-
-  /safer-buffer/2.1.2:
-    resolution: {integrity: sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==}
-    dev: false
-
-  /send/0.17.1:
-    resolution: {integrity: sha512-BsVKsiGcQMFwT8UxypobUKyv7irCNRHk1T0G680vk88yf6LBByGcZJOTJCrTP2xVN6yI+XjPJcNuE3V4fT9sAg==}
-    engines: {node: '>= 0.8.0'}
-    dependencies:
-      debug: 2.6.9
-      depd: 1.1.2
-      destroy: 1.0.4
-      encodeurl: 1.0.2
-      escape-html: 1.0.3
-      etag: 1.8.1
-      fresh: 0.5.2
-      http-errors: 1.7.3
-      mime: 1.6.0
-      ms: 2.1.1
-      on-finished: 2.3.0
-      range-parser: 1.2.1
-      statuses: 1.5.0
-    dev: false
-
-  /serve-static/1.14.1:
-    resolution: {integrity: sha512-JMrvUwE54emCYWlTI+hGrGv5I8dEwmco/00EvkzIIsR7MqrHonbD9pO2MOfFnpFntl7ecpZs+3mW+XbQZu9QCg==}
-    engines: {node: '>= 0.8.0'}
-    dependencies:
-      encodeurl: 1.0.2
-      escape-html: 1.0.3
-      parseurl: 1.3.3
-      send: 0.17.1
-    dev: false
-
-  /setprototypeof/1.1.1:
-    resolution: {integrity: sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw==}
-    dev: false
-
-  /statuses/1.5.0:
-    resolution: {integrity: sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow=}
-    engines: {node: '>= 0.6'}
-    dev: false
-
-  /toidentifier/1.0.0:
-    resolution: {integrity: sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw==}
-    engines: {node: '>=0.6'}
-    dev: false
-
-  /type-is/1.6.18:
-    resolution: {integrity: sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==}
-    engines: {node: '>= 0.6'}
-    dependencies:
-      media-typer: 0.3.0
-      mime-types: 2.1.31
-    dev: false
-
-  /unpipe/1.0.0:
-    resolution: {integrity: sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw=}
-    engines: {node: '>= 0.8'}
-    dev: false
-
-  /utils-merge/1.0.1:
-    resolution: {integrity: sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM=}
-    engines: {node: '>= 0.4.0'}
-    dev: false
-
-  /vary/1.1.2:
-    resolution: {integrity: sha1-IpnwLG3tMNSllhsLn3RSShj2NPw=}
-    engines: {node: '>= 0.8'}
-    dev: false

action.yml

@@ -20,7 +20,7 @@ inputs:
     description: Used to pull node distributions from node-versions.  Since there's a default, this is typically not supplied by the user.
     default: ${{ github.token }}
   cache:
-    description: 'Used to specify a package manager for caching in the default directory. Supported values: npm, yarn, pnpm'
+    description: 'Used to specify a package manager for caching in the default directory. Supported values: npm, yarn'
 # TODO: add input to control forcing to pull from cloud or dist. 
 #       escape valve for someone having issues or needing the absolute latest which isn't cached yet
 # Deprecated option, do not use. Will not be supported after October 1, 2019

dist/cache-save/index.js

@@ -4290,10 +4290,6 @@ exports.supportedPackageManagers = {
         lockFilePatterns: ['package-lock.json', 'yarn.lock'],
         getCacheFolderCommand: 'npm config get cache'
     },
-    pnpm: {
-        lockFilePatterns: ['pnpm-lock.yaml'],
-        getCacheFolderCommand: 'pnpm store path'
-    },
     yarn1: {
         lockFilePatterns: ['yarn.lock'],
         getCacheFolderCommand: 'yarn cache dir'
@@ -4308,7 +4304,7 @@ exports.getCommandOutput = (toolCommand) => __awaiter(void 0, void 0, void 0, fu
     if (stderr) {
         throw new Error(stderr);
     }
-    return stdout.trim();
+    return stdout;
 });
 const getPackageManagerVersion = (packageManager, command) => __awaiter(void 0, void 0, void 0, function* () {
     const stdOut = yield exports.getCommandOutput(`${packageManager} ${command}`);
@@ -4321,9 +4317,6 @@ exports.getPackageManagerInfo = (packageManager) => __awaiter(void 0, void 0, vo
     if (packageManager === 'npm') {
         return exports.supportedPackageManagers.npm;
     }
-    else if (packageManager === 'pnpm') {
-        return exports.supportedPackageManagers.pnpm;
-    }
     else if (packageManager === 'yarn') {
         const yarnVersion = yield getPackageManagerVersion('yarn', '--version');
         core.debug(`Consumed yarn version is ${yarnVersion}`);
@@ -5277,7 +5270,6 @@ Object.defineProperty(exports, "__esModule", { value: true });
 var LockType;
 (function (LockType) {
     LockType["Npm"] = "npm";
-    LockType["Pnpm"] = "pnpm";
     LockType["Yarn"] = "yarn";
 })(LockType = exports.LockType || (exports.LockType = {}));
 var State;
@@ -50605,13 +50597,9 @@ var __importStar = (this && this.__importStar) || function (mod) {
     result["default"] = mod;
     return result;
 };
-var __importDefault = (this && this.__importDefault) || function (mod) {
-    return (mod && mod.__esModule) ? mod : { "default": mod };
-};
 Object.defineProperty(exports, "__esModule", { value: true });
 const core = __importStar(__webpack_require__(470));
 const cache = __importStar(__webpack_require__(692));
-const fs_1 = __importDefault(__webpack_require__(747));
 const constants_1 = __webpack_require__(196);
 const cache_utils_1 = __webpack_require__(143);
 function run() {
@@ -50635,9 +50623,6 @@ const cachePackages = (packageManager) => __awaiter(void 0, void 0, void 0, func
         return;
     }
     const cachePath = yield cache_utils_1.getCacheDirectoryPath(packageManagerInfo, packageManager);
-    if (!fs_1.default.existsSync(cachePath)) {
-        throw new Error(`Cache folder path is retrieved for ${packageManager} but doesn't exist on disk: ${cachePath}`);
-    }
     if (primaryKey === state) {
         core.info(`Cache hit occurred on the primary key ${primaryKey}, not saving cache.`);
         return;

dist/setup/index.js

@@ -8652,7 +8652,6 @@ Object.defineProperty(exports, "__esModule", { value: true });
 var LockType;
 (function (LockType) {
     LockType["Npm"] = "npm";
-    LockType["Pnpm"] = "pnpm";
     LockType["Yarn"] = "yarn";
 })(LockType = exports.LockType || (exports.LockType = {}));
 var State;
@@ -51588,10 +51587,6 @@ exports.supportedPackageManagers = {
         lockFilePatterns: ['package-lock.json', 'yarn.lock'],
         getCacheFolderCommand: 'npm config get cache'
     },
-    pnpm: {
-        lockFilePatterns: ['pnpm-lock.yaml'],
-        getCacheFolderCommand: 'pnpm store path'
-    },
     yarn1: {
         lockFilePatterns: ['yarn.lock'],
         getCacheFolderCommand: 'yarn cache dir'
@@ -51606,7 +51601,7 @@ exports.getCommandOutput = (toolCommand) => __awaiter(void 0, void 0, void 0, fu
     if (stderr) {
         throw new Error(stderr);
     }
-    return stdout.trim();
+    return stdout;
 });
 const getPackageManagerVersion = (packageManager, command) => __awaiter(void 0, void 0, void 0, function* () {
     const stdOut = yield exports.getCommandOutput(`${packageManager} ${command}`);
@@ -51619,9 +51614,6 @@ exports.getPackageManagerInfo = (packageManager) => __awaiter(void 0, void 0, vo
     if (packageManager === 'npm') {
         return exports.supportedPackageManagers.npm;
     }
-    else if (packageManager === 'pnpm') {
-        return exports.supportedPackageManagers.pnpm;
-    }
     else if (packageManager === 'yarn') {
         const yarnVersion = yield getPackageManagerVersion('yarn', '--version');
         core.debug(`Consumed yarn version is ${yarnVersion}`);

docs/adrs/0000-caching-dependencies.md

@@ -1,7 +1,7 @@
 # 0. Caching dependencies
 Date: 2021-05-21
 
-Status: Proposed
+Status: Accepted
 
 # Context
 `actions/setup-node` is the 2nd most popular action in GitHub Actions. A lot of customers use it in conjunction with [actions/cache](https://github.com/actions/cache) to speed up dependencies installation.  

docs/adrs/0001-support-caching-deps-for-monorepos.md

@@ -0,0 +1,48 @@
+# 0. Support caching dependencies for mono repos
+Date: 2021-07-13
+
+Status: Proposed
+
+## Context
+Currently, `actions/setup-node` supports caching dependencies for Npm and Yarn package managers.  
+For the first iteration, we have decided to not support cases where `package-lock.json` / `yarn.lock` are located outside of repository root.  
+Current implementation searches the following file patterns in the repository root: `package-lock.json`, `yarn.lock` (in order of resolving priorities)
+
+Obviously, it made build-in caching unusable for mono-repos and repos with complex structure.  
+We would like to revisit this decision and add customization for dependencies lock file location.
+
+## Proposal
+We have the following options:
+1. Allow to specify  directory where `package-lock.json` or `yarn.lock` are located
+2. Allow to specify path to the dependencies lock file (including directory path and filename)
+
+The second option looks more generic because it allows to:
+- specify multiple dependencies files using file patterns like `**/package-lock.json` ([one of recommended approaches in actions/cache](https://github.com/actions/cache/blob/main/examples.md#macos-and-ubuntu))
+- specify custom dependencies files like `src/npm-shrinkwrap.json`
+- change default resolving priority if both `yarn.lock` and `package-lock.json` exist in repository
+
+## Decision
+
+Add `cache-dependency-path` input that will accept path (relative to repository root) to dependencies lock file.  
+If provided path contains wildcards, the action will search all maching files and calculate common hash like `${{ hashFiles('**/package-lock.json') }}` YAML construction does.  
+The hash of provided matched files will be used as a part of cache key.
+
+Yaml examples:
+```yml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-node@v2
+  with:
+    node-version: 14
+    cache: npm
+    cache-dependency-path: 'sub-project/package-lock.json'
+```
+```yml
+steps:
+- uses: actions/checkout@v2
+- uses: actions/setup-node@v2
+  with:
+    node-version: 14
+    cache: yarn
+    cache-dependency-path: 'sub-project/**/yarn.lock'
+```

src/cache-save.ts

@@ -1,6 +1,5 @@
 import * as core from '@actions/core';
 import * as cache from '@actions/cache';
-import fs from 'fs';
 import {State} from './constants';
 import {getCacheDirectoryPath, getPackageManagerInfo} from './cache-utils';
 
@@ -27,13 +26,6 @@ const cachePackages = async (packageManager: string) => {
     packageManagerInfo,
     packageManager
   );
-
-  if (!fs.existsSync(cachePath)) {
-    throw new Error(
-      `Cache folder path is retrieved for ${packageManager} but doesn't exist on disk: ${cachePath}`
-    );
-  }
-
   if (primaryKey === state) {
     core.info(
       `Cache hit occurred on the primary key ${primaryKey}, not saving cache.`

src/cache-utils.ts

@@ -15,10 +15,6 @@ export const supportedPackageManagers: SupportedPackageManagers = {
     lockFilePatterns: ['package-lock.json', 'yarn.lock'],
     getCacheFolderCommand: 'npm config get cache'
   },
-  pnpm: {
-    lockFilePatterns: ['pnpm-lock.yaml'],
-    getCacheFolderCommand: 'pnpm store path'
-  },
   yarn1: {
     lockFilePatterns: ['yarn.lock'],
     getCacheFolderCommand: 'yarn cache dir'
@@ -36,7 +32,7 @@ export const getCommandOutput = async (toolCommand: string) => {
     throw new Error(stderr);
   }
 
-  return stdout.trim();
+  return stdout;
 };
 
 const getPackageManagerVersion = async (
@@ -55,8 +51,6 @@ const getPackageManagerVersion = async (
 export const getPackageManagerInfo = async (packageManager: string) => {
   if (packageManager === 'npm') {
     return supportedPackageManagers.npm;
-  } else if (packageManager === 'pnpm') {
-    return supportedPackageManagers.pnpm;
   } else if (packageManager === 'yarn') {
     const yarnVersion = await getPackageManagerVersion('yarn', '--version');
 

src/constants.ts

@@ -1,6 +1,5 @@
 export enum LockType {
   Npm = 'npm',
-  Pnpm = 'pnpm',
   Yarn = 'yarn'
 }