Add list-files command

This is especially useful when piped to grep to find specific filenames
within all projects in the Rush workspace, in order to open those files
in your editor.

common/config/rush/command-line.json

@@ -172,6 +172,12 @@
       "summary": "Reset your workspace - !!DANGER!! unlink dependencies, purge downloaded node_modules, and remove all untracked files and directories",
       "safeForSimultaneousRushProcesses": true,
       "shellCommand": "rush unlink && echo \"\nStarting \\\"git clean\\\"\" && git clean -dfx && rush purge"
+    },
+    {
+      "commandKind": "global",
+      "name": "list-files",
+      "summary": "List files within Rush project directories",
+      "shellCommand": "node common/scripts/list-files.js"
     }
   ],
 

common/scripts/list-files.js

@@ -0,0 +1,35 @@
+const fs = require("fs");
+const path = require("path");
+
+function read(filename) {
+  const txt = fs
+    .readFileSync(filename, "utf8")
+    .replace(/\r/gm, "")
+    .replace(/\n/gm, "«")
+    .replace(/\/\*.*?\*\//gm, "")
+    .replace(/«/gm, "\n")
+    .replace(/\s+\/\/.*/g, "");
+  return JSON.parse(txt);
+}
+
+function walk(dir) {
+  var list = fs.readdirSync(dir);
+  for (const fileName of list) {
+    const filePath = path.join(dir, fileName);
+    if (fileName == "node_modules") {
+      continue;
+    }
+
+    const stat = fs.statSync(filePath);
+    if (stat && stat.isDirectory()) { 
+      walk(filePath);
+    } else {
+      console.log(path.resolve(filePath));
+    }
+  }
+}
+
+const rush = read(`${__dirname}/../../rush.json`);
+for (const each of rush.projects) {
+  walk(each.projectFolder);
+}