enables permission checking for extensions commands (#477)

* enables permission checking;

* format

src/commands/ext-configure.ts

@@ -24,11 +24,7 @@ marked.setOptions({
 export default new Command("ext:configure <instanceId>")
   .description("configure an existing extension instance")
   .option("--params <paramsFile>", "path of params file with .env format.")
-  .before(requirePermissions, [
-    // this doesn't exist yet, uncomment when it does
-    // "firebasemods.instances.update"
-    // "firebasemods.instances.get"
-  ])
+  .before(requirePermissions, ["firebasemods.instances.update", "firebasemods.instances.get"])
   .action(async (instanceId: string, options: any) => {
     const spinner = ora.default(
       `Configuring ${clc.bold(instanceId)}. This usually takes 3 to 5 minutes...`

src/commands/ext-info.ts

@@ -19,10 +19,7 @@ export default new Command("ext:info <extensionName>")
     "display information about an extension by name (extensionName@x.y.z for a specific version)"
   )
   .option("--markdown", "output info in Markdown suitable for constructing a README file")
-  .before(requirePermissions, [
-    // this doesn't exist yet, uncomment when it does
-    // "firebasemods.sources.get"
-  ])
+  .before(requirePermissions, ["firebasemods.sources.get"])
   .before(ensureModsApiEnabled)
   .action(async (modName: string, options: any) => {
     const sourceUrl = await resolveSource(modName);

src/commands/ext-install.ts

@@ -108,10 +108,7 @@ async function installMod(options: InstallModOptions): Promise<void> {
 export default new Command("ext:install <extensionName>")
   .description("install an extension, given <extensionName> or <extensionName@versionNumber>")
   .option("--params <paramsFile>", "name of params variables file with .env format.")
-  .before(requirePermissions, [
-    // this doesn't exist yet, uncomment when it does
-    // "firebasemods.instances.create"
-  ])
+  .before(requirePermissions, ["firebasemods.instances.create"])
   .before(ensureModsApiEnabled)
   .action(async (modName: string, options: any) => {
     try {

src/commands/ext-list.ts

@@ -6,10 +6,7 @@ import * as requirePermissions from "../requirePermissions";
 
 module.exports = new Command("ext:list")
   .description("list all the extensions that are installed in your Firebase project")
-  .before(requirePermissions, [
-    // TODO: this doesn't exist yet, uncomment when it does
-    // "firebasemods.instances.list"
-  ])
+  .before(requirePermissions, ["firebasemods.instances.list"])
   .before(ensureModsApiEnabled)
   .action((options: any) => {
     const projectId = getProjectId(options);

src/commands/ext-uninstall.ts

@@ -14,10 +14,7 @@ import * as utils from "../utils";
 export default new Command("ext:uninstall <extensionInstanceId>")
   .description("uninstall an extension that is installed in your Firebase project by instance ID")
   .option("-f, --force", "No confirmation. Otherwise, a confirmation prompt will appear.")
-  .before(requirePermissions, [
-    // TODO: This doesn't exist yet. Uncomment when it does.
-    // "firebasemods.instances.delete"
-  ])
+  .before(requirePermissions, ["firebasemods.instances.delete"])
   .before(ensureModsApiEnabled)
   .action(async (instanceId: string, options: any) => {
     const projectId = getProjectId(options);

src/commands/ext-update.ts

@@ -24,11 +24,7 @@ marked.setOptions({
  */
 export default new Command("ext:update <instanceId>")
   .description("update an existing extension instance to the latest version")
-  .before(requirePermissions, [
-    // this doesn't exist yet, uncomment when it does
-    // "firebasemods.instances.update"
-    // "firebasemods.instances.get"
-  ])
+  .before(requirePermissions, ["firebasemods.instances.update", "firebasemods.instances.get"])
   .before(ensureModsApiEnabled)
   .action(async (instanceId: string, options: any) => {
     const spinner = ora.default(