Node.js readline 只让我回答我的第一组问题然后无限期挂起。（附带可重现的样品！）

Question

我有这个程序：

递归查找存储库（参见recurse()）
在每个存储库中，查找我定期更新的特定点文件（参见 update()）
提示用户确认每次更新（参见 confirm()）

function confirm(prompt, defaultOption = true) {
    console.warn("At confirm");
    return new Promise(function(resolve, reject) {
        console.warn("Question asked");

        readline.question(prompt, async function(answer) {
            console.warn("Question answered");

            if (/^y(es)?$/i.test(answer) || (answer === "" && defaultOption === true)) {
                resolve(true);
            } else if (/^n(o)?$/i.test(answer) || (answer === "" && defaultOption === false)) {
                resolve(false);
            } else {
                resolve(await confirm(prompt, defaultOption));
            }
        });
    });
}

async function update(directory = baseDirectory) {
    console.warn("At update");

    for (const file of [[".eslintrc.json"], ["tsconfig.json"], [".vscode", "extensions.json"], [".vscode", "settings.json"]]) {
        if (fs.existsSync(path.join(directory, file[file.length - 1]))) {
            console.warn("Before confirm");

            console.log("==== " + directory + " ====");

            if (argv["yes"] === true || (await confirm(directory + "\tOverwrite `" + file[file.length - 1] + "`? [Y/n] ")) === true) {
                fs.copyFileSync(path.join(kerplowDirectory, ...file), path.join(directory, ...file));
            }

            console.warn("After confirm");
        }
    }
}

(function recurse(directory = baseDirectory) {
    for (const file of fs.readdirSync(directory)) {
        if (fs.statSync(path.join(directory, file)).isDirectory()) {
            if (file === ".git") {
                console.warn("Before update");

                update(directory);

                console.warn("After update");
            }

            if (file !== "node_modules") {
                recurse(path.join(directory, file));
            }
        }
    }
})();

问题是双重的：

readline重复问第一个问题
它只会问第一组问题，然后完全停止响应输入

示例输出：

At update
Before confirm
==== .bash_logout ====
At confirm
Question asked
.bash_logout    Overwrite `.eslintrc.json`? [YAfter update
Before update
At update
Before confirm
==== .bashrc ====
At confirm
Question asked
.bash_logout    Overwrite `.eslintrc.json`? [YAfter update
Before update
At update
Before confirm
==== .cache ====
At confirm
Question asked
.bash_logout    Overwrite `.eslintrc.json`? [YAfter update
Before update
At update
Before confirm
==== .config ====
At confirm
Question asked
.bash_logout    Overwrite `.eslintrc.json`? [YAfter update
Before update
At update
Before confirm
==== .npm ====
At confirm
Question asked
.bash_logout    Overwrite `.eslintrc.json`? [YAfter update
Before update
At update
Before confirm
==== .profile ====
At confirm
Question asked
.bash_logout    Overwrite `.eslintrc.json`? [YAfter update
Before update
At update
Before confirm
==== .upm ====
At confirm
Question asked
.bash_logout    Overwrite `.eslintrc.json`? [YAfter update
Before update
At update
Before confirm
==== config.json ====
At confirm
Question asked
.bash_logout    Overwrite `.eslintrc.json`? [YAfter update
Before update
At update
Before confirm
==== index.js ====
At confirm
Question asked
.bash_logout    Overwrite `.eslintrc.json`? [YAfter update

Question answered
After confirm
Before confirm
==== .bash_logout ====
At confirm
Question asked
.bash_logout    Overwrite `tsconfig.json`? [Y/n]
Question answered
After confirm
Before confirm
==== .bash_logout ====
At confirm
Question asked
.bash_logout    Overwrite `extensions.json`? [Y/n]
Question answered
After confirm
Before confirm
==== .bash_logout ====
At confirm
Question asked
.bash_logout    Overwrite `settings.json`? [Y/n]
Question answered
After confirm


<indefinite hang>

回复：

https://repl.it/repls/LuminousRapidNaturaldocs

Answer 1

已尝试修改文件并修复问题。我从repl复制了代码。

有几个问题：

解决后您需要从 readline.question return。正因如此，第一道题在循环
recurse 也需要是异步的，以便一次提示一个文件

const fs = require("fs");
const readline = require("readline").createInterface({
  "input": process.stdin,
  "output": process.stdout
});

function confirm(prompt, defaultOption = true) {
    console.warn("At confirm");

    return new Promise(function(resolve, reject) {
        console.warn("Question asked");

        readline.question(prompt, async function(answer) {
            console.warn("Question answered");

            if (/^y(es)?$/i.test(answer) || (answer === "" && defaultOption === true)) {
                resolve(true);
                return
            } else if (/^n(o)?$/i.test(answer) || (answer === "" && defaultOption === false)) {
                resolve(false);
                return
            } else {
                resolve(await confirm(prompt, defaultOption));
            }
        });
    });
}

async function update(directory) {
    console.warn("At update");

    for (const file of [[".eslintrc.json"], ["tsconfig.json"], [".vscode", "extensions.json"], [".vscode", "settings.json"]]) {
    //  if (fs.existsSync(path.join(directory, file[file.length - 1]))) {
            console.warn("Before confirm");

            console.log("==== " + directory + " ====");

            if (/* argv["yes"] === true || */ (await confirm(directory + "\tOverwrite `" + file[file.length - 1] + "`? [Y/n] ")) === true) {
    //          fs.copyFileSync(path.join(kerplowDirectory, ...file), path.join(directory, ...file));
                // break;
            }

            console.warn("After confirm");
    //  }
    }
    // return
}
console.log(fs.readdirSync(process.cwd()));

(async function recurse(directory) {
    for (const file of fs.readdirSync(directory)) {
    //  if (fs.statSync(path.join(directory, file)).isDirectory()) {
    //      if (file === ".git") {
                console.warn("Before update");

                await update(file);

                console.warn("After update");
    //      }

    //      if (file !== "node_modules") {
    //          recurse(path.join(directory, file));
    //      }
    //  }
    }
})(process.cwd());

我现在得到的输出是：

[ '.eslintrc.json', 'id.js', 'index.js', 'tsconfig.json' ]
Before update
At update
Before confirm
==== .eslintrc.json ====
At confirm
Question asked
.eslintrc.json  Overwrite `.eslintrc.json`? [Y/nY <= Screen waits here for Y/N
Question answered
After confirm
Before confirm
==== .eslintrc.json ====
At confirm
Question asked
.eslintrc.json  Overwrite `tsconfig.json`? [Y/nY <= Screen waits here for Y/N
Question answered
After confirm
Before confirm
==== .eslintrc.json ====
At confirm
Question asked
.eslintrc.json  Overwrite `extensions.json`? [Y/nY <= Screen waits here for Y/N
Question answered
After confirm
Before confirm
==== .eslintrc.json ====
At confirm
Question asked
.eslintrc.json  Overwrite `settings.json`? [Y/nY <= Screen waits here for Y/N

And it repeats for other files in the local directory

如果这有帮助，请告诉我。如有任何疑问，请回复。

Node.js readline 只让我回答我的第一组问题然后无限期挂起。（附带可重现的样品！）

Node.js readline only lets me answer my first set of questions then hangs indefinitely. (Reproducible sample attached!)

readline

node.js

Node.js readline 只让我回答我的第一组问题然后无限期挂起。 （附带可重现的样品！）

Node.js readline only lets me answer my first set of questions then hangs indefinitely. (Reproducible sample attached!)

readline

node.js

Node.js readline 只让我回答我的第一组问题然后无限期挂起。（附带可重现的样品！）