refactor(cli): migrate to commander framework and simplify config loading

Replace hand-rolled CLI argument parsing with Commander for command
registration and option handling. Streamline config resolution by
removing the BrickConfig type and accepting a plain source string
with BRICK_SOURCE env var support.

- Replace manual CLI dispatch with Commander-based command tree
- Simplify resolveConfig/resolveSource to a single resolveSource function
- Remove BrickConfig interface in favor of direct source string
- Move isRemote check into index-loader as a local utility
- Update loadIndex signature to accept source string directly

src/commands/list.ts

@@ -1,41 +1,42 @@
-import { resolveConfig } from "../lib/config.js";
+import { Command } from "commander";
+import { resolveSource } from "../lib/config.js";
 import { loadIndex } from "../lib/index-loader.js";
 import { formatTable } from "../lib/table.js";
-import type { Command } from "../types/index.js";
 
-export const listCommand: Command = {
-  name: "list",
-  description: "显示可用积木列表",
+export function registerList(program: Command): void {
+  program
+    .command("list")
+    .description("显示可用积木列表")
+    .option("--source <path>", "index source path or URL")
+    .action(async (options) => {
+      const source = resolveSource(options.source);
+      const index = await loadIndex(source);
 
-  run: async (args: string[]) => {
-    const config = resolveConfig(args);
-    const index = await loadIndex(config);
+      if (index.blocks.length === 0) {
+        console.log("(no blocks found)");
+        return;
+      }
 
-    if (index.blocks.length === 0) {
-      console.log("(no blocks found)");
-      return;
-    }
+      const columns = [
+        { key: "name", header: "Name", minWidth: 20, maxWidth: 30 },
+        { key: "module", header: "Module", minWidth: 8, maxWidth: 12 },
+        { key: "variants", header: "Variants", minWidth: 15, maxWidth: 45 },
+        { key: "dependsOn", header: "Dependencies", minWidth: 15, maxWidth: 30 },
+        { key: "description", header: "Description", minWidth: 15, maxWidth: 55 },
+      ];
 
-    const columns = [
-      { key: "name", header: "Name", minWidth: 20, maxWidth: 30 },
-      { key: "module", header: "Module", minWidth: 8, maxWidth: 12 },
-      { key: "variants", header: "Variants", minWidth: 15, maxWidth: 45 },
-      { key: "dependsOn", header: "Dependencies", minWidth: 15, maxWidth: 30 },
-      { key: "description", header: "Description", minWidth: 15, maxWidth: 55 },
-    ];
+      const rows = index.blocks.map((block) => ({
+        name: block.name,
+        module: block.module,
+        variants:
+          block.variants.length > 0
+            ? block.variants.map((v) => v.label).join(", ")
+            : "-",
+        dependsOn:
+          block.dependsOn.length > 0 ? block.dependsOn.join(", ") : "-",
+        description: block.description,
+      }));
 
-    const rows = index.blocks.map((block) => ({
-      name: block.name,
-      module: block.module,
-      variants:
-        block.variants.length > 0
-          ? block.variants.map((v) => v.label).join(", ")
-          : "-",
-      dependsOn:
-        block.dependsOn.length > 0 ? block.dependsOn.join(", ") : "-",
-      description: block.description,
-    }));
-
-    console.log(formatTable(columns, rows));
-  },
-};
+      console.log(formatTable(columns, rows));
+    });
+}

src/index.ts

@@ -1,42 +1,14 @@
 #!/usr/bin/env node
 
-import { listCommand } from "./commands/list.js";
-import type { Command } from "./types/index.js";
+import { Command } from "commander";
+import { registerList } from "./commands/list.js";
 
-const USAGE = `
-Brick CLI — 源码级 Spring Boot 脚手架
+const program = new Command();
 
-Usage:
-  brick create <project-name>     创建新项目
-  brick add <module>[:variant]    向已有项目增量添加积木
-  brick list                      显示可用积木列表
+program
+  .name("brick")
+  .description("Brick CLI — 源码级 Spring Boot 脚手架");
 
-Examples:
-  brick create my-app
-  brick add cache:redisson
-  brick list
-`;
+registerList(program);
 
-const commands = new Map<string, Command>();
-commands.set(listCommand.name, listCommand);
-
-async function main(): Promise<void> {
-  const args = process.argv.slice(2);
-  const commandName = args[0];
-
-  if (!commandName) {
-    console.log(USAGE);
-    process.exit(0);
-  }
-
-  const command = commands.get(commandName);
-  if (!command) {
-    console.error(`Unknown command: ${commandName}`);
-    console.log(USAGE);
-    process.exit(1);
-  }
-
-  await command.run(args.slice(1));
-}
-
-main();
+program.parse();

src/lib/config.ts

@@ -1,30 +1,8 @@
-import type { BrickConfig } from "../types/index.js";
-
 const DEFAULT_SOURCE =
   "https://gitea.synoth.com/synoth/brick-index/raw/branch/master/blocks.yaml";
 
-function parseSourceFromArgs(args: string[]): string | undefined {
-  const idx = args.indexOf("--source");
-  if (idx !== -1 && idx + 1 < args.length) {
-    return args[idx + 1];
-  }
-  return undefined;
-}
-
-function isRemoteSource(source: string): boolean {
-  return source.startsWith("http://") || source.startsWith("https://");
-}
-
-export function resolveConfig(args: string[]): BrickConfig {
-  const cliSource = parseSourceFromArgs(args);
-  if (cliSource) {
-    return { source: cliSource, isRemote: isRemoteSource(cliSource) };
-  }
-
-  const envSource = process.env.BRICK_SOURCE;
-  if (envSource) {
-    return { source: envSource, isRemote: isRemoteSource(envSource) };
-  }
-
-  return { source: DEFAULT_SOURCE, isRemote: true };
+export function resolveSource(cliSource?: string): string {
+  if (cliSource) return cliSource;
+  if (process.env.BRICK_SOURCE) return process.env.BRICK_SOURCE;
+  return DEFAULT_SOURCE;
 }

src/lib/index-loader.ts

@@ -1,24 +1,27 @@
 import { readFile } from "node:fs/promises";
 import { load } from "js-yaml";
-import type { BlockIndex, BrickConfig } from "../types/index.js";
+import type { BlockIndex } from "../types/index.js";
 
-export async function loadIndex(config: BrickConfig): Promise<BlockIndex> {
+const isRemote = (source: string): boolean =>
+  source.startsWith("http://") || source.startsWith("https://");
+
+export async function loadIndex(source: string): Promise<BlockIndex> {
   let raw: string;
 
-  if (config.isRemote) {
+  if (isRemote(source)) {
     let response: Response;
     try {
-      response = await fetch(config.source);
+      response = await fetch(source);
     } catch {
       process.stderr.write(
-        `Error: Failed to fetch index from "${config.source}"\n`
+        `Error: Failed to fetch index from "${source}"\n`
       );
       process.exit(1);
     }
 
     if (!response.ok) {
       process.stderr.write(
-        `Error: Failed to fetch index from "${config.source}" (HTTP ${response.status})\n`
+        `Error: Failed to fetch index from "${source}" (HTTP ${response.status})\n`
       );
       process.exit(1);
     }
@@ -26,12 +29,12 @@ export async function loadIndex(config: BrickConfig): Promise<BlockIndex> {
     raw = await response.text();
   } else {
     try {
-      raw = await readFile(config.source, "utf-8");
+      raw = await readFile(source, "utf-8");
     } catch (err: unknown) {
       const code = (err as NodeJS.ErrnoException)?.code;
       if (code === "ENOENT") {
         process.stderr.write(
-          `Error: Index file not found at "${config.source}"\n`
+          `Error: Index file not found at "${source}"\n`
         );
       } else {
         process.stderr.write(`Error: ${(err as Error).message}\n`);

src/types/index.ts

@@ -17,14 +17,3 @@ export interface Block {
 export interface BlockIndex {
   blocks: Block[];
 }
-
-export interface BrickConfig {
-  source: string;
-  isRemote: boolean;
-}
-
-export interface Command {
-  name: string;
-  description: string;
-  run: (args: string[]) => Promise<void>;
-}