完善编排执行命令功能

plugin/lib/quickcomposer.js

@@ -2,6 +2,7 @@ const quickcomposer = {
   textProcessor: require("./quickcomposer/textProcessor"),
   simulate: require("./quickcomposer/simulate"),
   file: require("./quickcomposer/file"),
+  system: require("./quickcomposer/system"),
 };
 
 module.exports = quickcomposer;

plugin/lib/quickcomposer/system/exec.js

@@ -0,0 +1,48 @@
+const { execSync } = require("child_process");
+const iconv = require("iconv-lite");
+const os = require("os");
+
+function getSystemEncoding() {
+  // Windows 默认使用 GBK/GB2312，其他系统默认 UTF-8
+  return os.platform() === "win32" ? "gbk" : "utf8";
+}
+
+function exec(command, options = {}) {
+  try {
+    const {
+      autoEncoding = true,
+      encoding = "buffer",
+      windowsHide = true,
+      ...execOptions
+    } = options;
+
+    // 执行命令，总是使用 buffer 获取原始输出
+    const output = execSync(command, {
+      ...execOptions,
+      encoding: "buffer",
+      windowsHide,
+    });
+
+    // 如果设置了自动编码，根据系统编码解码
+    if (autoEncoding) {
+      return iconv.decode(output, getSystemEncoding());
+    }
+
+    // 如果手动设置了编码且不是 buffer，则按指定编码解码
+    if (encoding !== "buffer") {
+      return iconv.decode(output, encoding);
+    }
+
+    // 返回原始 buffer
+    return output;
+  } catch (error) {
+    // 如果是执行错误，尝试解码错误信息
+    if (error.stderr) {
+      const stderr = iconv.decode(error.stderr, getSystemEncoding());
+      error.message = stderr;
+    }
+    throw error;
+  }
+}
+
+module.exports = exec;

plugin/lib/quickcomposer/system/index.js

@@ -0,0 +1,5 @@
+const exec = require("./exec");
+
+module.exports = {
+  exec,
+};