feat, introduce an API Server to run commands through HTTP server

.bitmap

@@ -189,6 +189,13 @@
         "mainFile": "index.ts",
         "rootDir": "scopes/harmony/bit-error"
     },
+    "api-server": {
+        "scope": "",
+        "version": "",
+        "defaultScope": "teambit.harmony",
+        "mainFile": "index.ts",
+        "rootDir": "scopes/harmony/api-server"
+    },
     "builder": {
         "scope": "teambit.pipelines",
         "version": "0.0.988",
@@ -2440,4 +2447,4 @@
         "rootDir": "scopes/dependencies/yarn"
     },
     "$schema-version": "15.0.0"
-}
+}

scopes/harmony/api-server/api-server.aspect.ts

@@ -0,0 +1,5 @@
+import { Aspect } from '@teambit/harmony';
+
+export const ApiServerAspect = Aspect.create({
+  id: 'teambit.harmony/api-server',
+});

scopes/harmony/api-server/api-server.main.runtime.ts

@@ -0,0 +1,50 @@
+import { CLIAspect, CLIMain, MainRuntime } from '@teambit/cli';
+import { ExpressAspect, ExpressMain } from '@teambit/express';
+import { Logger, LoggerAspect, LoggerMain } from '@teambit/logger';
+import WorkspaceAspect, { Workspace } from '@teambit/workspace';
+import { ApiServerAspect } from './api-server.aspect';
+import { CLIRoute } from './cli.route';
+import { ServerCmd } from './server.cmd';
+
+export class ApiServerMain {
+  constructor(private workspace: Workspace, private logger: Logger, private express: ExpressMain) {}
+
+  async runApiServer(options: { port: number }) {
+    const port = options.port || 3000;
+    await this.express.listen(port);
+
+    this.workspace.watcher
+      .watchAll({
+        preCompile: false,
+      })
+      .catch((err) => {
+        // don't throw an error, we don't want to break the "run" process
+        this.logger.error('watcher found an error', err);
+      });
+
+    // never ending promise to not exit the process (is there a better way?)
+    return new Promise(() => {
+      this.logger.consoleSuccess(`Bit Server is listening on port ${port}`);
+    });
+  }
+
+  static dependencies = [CLIAspect, WorkspaceAspect, LoggerAspect, ExpressAspect];
+  static runtime = MainRuntime;
+  static async provider([cli, workspace, loggerMain, express]: [CLIMain, Workspace, LoggerMain, ExpressMain]) {
+    const logger = loggerMain.createLogger(ApiServerAspect.id);
+    const apiServer = new ApiServerMain(workspace, logger, express);
+    cli.register(new ServerCmd(apiServer));
+
+    const cliRoute = new CLIRoute(logger, cli);
+    // register only when the workspace is available. don't register this on a remote-scope, for security reasons.
+    if (workspace) {
+      express.register([cliRoute]);
+    }
+
+    return apiServer;
+  }
+}
+
+ApiServerAspect.addRuntime(ApiServerMain);
+
+export default ApiServerMain;

scopes/harmony/api-server/cli.route.ts

@@ -0,0 +1,48 @@
+import { CLIMain } from '@teambit/cli';
+import prettyTime from 'pretty-time';
+import { Route, Request, Response } from '@teambit/express';
+import { Logger } from '@teambit/logger';
+
+/**
+ * example usage:
+ * post to http://localhost:3000/api/cli/list
+ * with the following json as the body
+ *
+{
+    "args": ["teambit.workspace"],
+    "options": {
+        "ids": true
+    }
+}
+ */
+export class CLIRoute implements Route {
+  constructor(private logger: Logger, private cli: CLIMain) {}
+
+  method = 'post';
+  route = '/cli/:cmd';
+
+  middlewares = [
+    async (req: Request, res: Response, next) => {
+      this.logger.debug(`cli server: got request for ${req.params.cmd}`);
+      try {
+        const command = this.cli.getCommand(req.params.cmd);
+        if (!command) throw new Error(`command "${req.params.cmd}" was not found`);
+        if (!command.json) throw new Error(`command "${req.params.cmd}" does not have a json method`);
+        const body = req.body;
+        const { args, options } = body;
+        const optsToString = Object.keys(options || {})
+          .map((key) => `--${key}`)
+          .join(' ');
+        this.logger.console(`started a new command: ${req.params.cmd} ${args.join(' ')} ${optsToString}`);
+        const startTask = process.hrtime();
+        const result = await command?.json(args || [], options || {});
+        const duration = prettyTime(process.hrtime(startTask));
+        this.logger.consoleSuccess(`command "${req.params.cmd}" had been completed in ${duration}`);
+        res.json(result);
+      } catch (err) {
+        this.logger.consoleFailure(`command "${req.params.cmd}" had failed`);
+        next(err);
+      }
+    },
+  ];
+}

scopes/harmony/api-server/index.ts

@@ -0,0 +1,5 @@
+import { ApiServerAspect } from './api-server.aspect';
+
+export type { ApiServerMain } from './api-server.main.runtime';
+export default ApiServerAspect;
+export { ApiServerAspect };

scopes/harmony/api-server/server.cmd.ts

@@ -0,0 +1,19 @@
+// eslint-disable-next-line max-classes-per-file
+import { Command, CommandOptions } from '@teambit/cli';
+import { ApiServerMain } from './api-server.main.runtime';
+
+export class ServerCmd implements Command {
+  name = 'server';
+  description = 'EXPERIMENTAL. communicate with bit cli program via http requests';
+  alias = '';
+  commands: Command[] = [];
+  group = 'general';
+  options = [['p', 'port [port]', 'port to run the server on']] as CommandOptions;
+
+  constructor(private apiServer: ApiServerMain) {}
+
+  async report(args, options: { port: number }): Promise<string> {
+    await this.apiServer.runApiServer(options);
+    return 'server is running successfully'; // should never get here, the previous line is blocking
+  }
+}

scopes/harmony/bit/manifests.ts

@@ -94,6 +94,7 @@ import { RemoveAspect } from '@teambit/remove';
 import { MergeLanesAspect } from '@teambit/merge-lanes';
 import { CheckoutAspect } from '@teambit/checkout';
 import { APIReferenceAspect } from '@teambit/api-reference';
+import { ApiServerAspect } from '@teambit/api-server';
 import { ComponentWriterAspect } from '@teambit/component-writer';
 import { TrackerAspect } from '@teambit/tracker';
 import { MoverAspect } from '@teambit/mover';
@@ -196,6 +197,7 @@ export const manifestsMap = {
   [CheckoutAspect.id]: CheckoutAspect,
   [ComponentWriterAspect.id]: ComponentWriterAspect,
   [APIReferenceAspect.id]: APIReferenceAspect,
+  [ApiServerAspect.id]: ApiServerAspect,
   [TrackerAspect.id]: TrackerAspect,
   [MoverAspect.id]: MoverAspect,
 };

scopes/harmony/cli/cli.cmd.ts

@@ -1,6 +1,6 @@
 // eslint-disable-next-line max-classes-per-file
 import { Command, CommandOptions } from '@teambit/cli';
-import logger from '@teambit/legacy/dist/logger/logger';
+import legacyLogger from '@teambit/legacy/dist/logger/logger';
 import { handleErrorAndExit } from '@teambit/legacy/dist/cli/handle-errors';
 import { loadConsumerIfExist } from '@teambit/legacy/dist/consumer';
 import readline from 'readline';
@@ -46,7 +46,7 @@ export class CliCmd implements Command {
   constructor(private cliMain: CLIMain, private docsDomain: string) {}
 
   async report(): Promise<string> {
-    logger.isDaemon = true;
+    legacyLogger.isDaemon = true;
     const rl = readline.createInterface({
       input: process.stdin,
       output: process.stdout,

scopes/workspace/workspace/watch/watcher.ts

@@ -80,6 +80,7 @@ export class Watcher {
       }
       watcher.on('ready', () => {
         msgs?.onReady(this.workspace, this.trackDirs, this.verbose);
+        loader.stop();
       });
       // eslint-disable-next-line @typescript-eslint/no-misused-promises
       watcher.on('change', async (filePath) => {