Merge branch 'master' into auth

node_modules/@actions/tool-cache/lib/tool-cache.js

@@ -15,7 +15,6 @@ const os = require("os");
 const path = require("path");
 const httpm = require("typed-rest-client/HttpClient");
 const semver = require("semver");
-const shell = require("shelljs");
 const uuidV4 = require("uuid/v4");
 const exec_1 = require("@actions/exec/lib/exec");
 const assert_1 = require("assert");
@@ -273,7 +272,7 @@ function cacheDir(sourceDir, tool, version, arch) {
         // due to anti-virus software having an open handle on a file.
         for (const itemName of fs.readdirSync(sourceDir)) {
             const s = path.join(sourceDir, itemName);
-            shell.cp('-R', s, destPath);
+            yield io.cp(s, destPath, { recursive: true });
         }
         // write .complete
         _completeToolPath(tool, version, arch);