Support npm-shrinkwrap.json out-of-the-box (#439)

README.md

@@ -58,7 +58,7 @@ It's **always** recommended to commit the lockfile of your package manager for s
 
 The action has a built-in functionality for caching and restoring dependencies. It uses [actions/cache](https://github.com/actions/cache) under the hood for caching global packages data but requires less configuration settings. Supported package managers are `npm`, `yarn`, `pnpm` (v6.10+). The `cache` input is optional, and caching is turned off by default.
 
-The action defaults to search for the dependency file (`package-lock.json` or `yarn.lock`) in the repository root, and uses its hash as a part of the cache key. Use `cache-dependency-path` for cases when multiple dependency files are used, or they are located in different subdirectories.
+The action defaults to search for the dependency file (`package-lock.json`, `npm-shrinkwrap.json` or `yarn.lock`) in the repository root, and uses its hash as a part of the cache key. Use `cache-dependency-path` for cases when multiple dependency files are used, or they are located in different subdirectories.
 
 **Note:** The action does not cache `node_modules`
 

dist/cache-save/index.js

@@ -59926,7 +59926,7 @@ const exec = __importStar(__nccwpck_require__(1514));
 const cache = __importStar(__nccwpck_require__(7799));
 exports.supportedPackageManagers = {
     npm: {
-        lockFilePatterns: ['package-lock.json', 'yarn.lock'],
+        lockFilePatterns: ['package-lock.json', 'npm-shrinkwrap.json', 'yarn.lock'],
         getCacheFolderCommand: 'npm config get cache'
     },
     pnpm: {

dist/setup/index.js

@@ -71272,7 +71272,7 @@ const exec = __importStar(__nccwpck_require__(1514));
 const cache = __importStar(__nccwpck_require__(7799));
 exports.supportedPackageManagers = {
     npm: {
-        lockFilePatterns: ['package-lock.json', 'yarn.lock'],
+        lockFilePatterns: ['package-lock.json', 'npm-shrinkwrap.json', 'yarn.lock'],
         getCacheFolderCommand: 'npm config get cache'
     },
     pnpm: {

src/cache-utils.ts

@@ -13,7 +13,7 @@ export interface PackageManagerInfo {
 
 export const supportedPackageManagers: SupportedPackageManagers = {
   npm: {
-    lockFilePatterns: ['package-lock.json', 'yarn.lock'],
+    lockFilePatterns: ['package-lock.json', 'npm-shrinkwrap.json', 'yarn.lock'],
     getCacheFolderCommand: 'npm config get cache'
   },
   pnpm: {