Question

我正在尝试创建一个函数，该函数可以提取一个远程存储库，然后浏览此存储库并安装它的依赖项，但是由于某种原因，它无法在克隆的存储库中安装依赖项并将其安装到外部：

const spinner = clui.Spinner;
const git = require("simple-git/promise");
const path = require("path");
const { install } = require("pkg-install");

async function pullRepo() {
  const pulling = new spinner("Initializing project...");
  const installing = new spinner("Installing dependencies...");
  const rep = await inquirer.DirectoryName();
  const package = path.join(rep.project, "package.json");
  pulling.start();
  await git()
    .silent(true)
    .clone("git@github.com:blacklane/create-blacklane-app.git", rep.project)
    .then(async () => {
      pulling.stop();
      console.log(`working directory:`, process.cwd());
      // check file exist asynchronously
      fs.access(package, fs.constants.F_OK, err => {
        console.log(`${package} ${err ? "does not exist" : "exists"}`);
      });

      installing.start();
      const obj = JSON.parse(fs.readFileSync(package, "utf8"));
      const dependencies = { ...obj.dependencies, ...obj.devDependencies };
      process.chdir(rep.project); // navigate to directory to install dpendencies
      console.log(`new working directory from git:`, process.cwd());
      const { stdout } = await install(dependencies, {
        dev: true,
        prefer: "npm"
      });
      console.log(stdout);
      installing.stop();
    })
    .catch(error => console.error("failed: ", error));
  // progress.finish();
}

Answer 1

之所以会发生这种情况是因为安装无法以某种方式访问克隆的存储库。可能是因为运行Node进程的底层shell仍然相同。

以下是工作代码：

const clui = require('clui');
const spinner = clui.Spinner;
const git = require("simple-git/promise");
const path = require("path");
const fs = require('fs');
const fsPromises = fs.promises;
const { spawn } = require('child_process');

async function pullRepo(repo, dirName) {
  const pulling = new spinner("Initializing project...");
  const installing = new spinner("Installing dependencies...");

  pulling.start();
  await git().silent(true).clone(repo, dirName);

  pulling.stop();

  const package = path.join(dirName, "package.json");
  // check file exist asynchronously
  await fsPromises.access(package, fs.constants.F_OK);

  installing.start();

  const npmInstall = spawn('npm', ['i'], { cwd: dirName });

  npmInstall.stdout.on('data', (data) => {
    console.log(`stdout: ${data}`);
  });

  npmInstall.stderr.on('data', (data) => {
    console.error(`stderr: ${data}`);
    installing.stop();
  });

  npmInstall.on('close', (data) => {
    installing.stop();
  });

}

const repoToPull = "https://github.com/facebook/create-react-app.git"; // can be any repo
const dirToPullTo = path.join(__dirname,'gitpull'); // directory you want to pull it to.
pullRepo(
  repoToPull,
  dirToPullTo
).then(res => console.log(res));

此代码需要更好的错误处理。

等待诺言时，您无需添加.then

无法导航到Node.js中的适当文件夹

1 个答案: