如何在Node.js中获取脚本的路径?
我知道有流程。Cwd,但它只引用调用脚本的目录,而不是脚本本身。例如,假设我在/home/kyle/目录下,然后运行以下命令:
node /home/kyle/some/dir/file.js
如果我调用process.cwd(),我会得到/home/kyle/,而不是/home/kyle/some/dir/。有办法得到那个目录吗?
如何在Node.js中获取脚本的路径?
我知道有流程。Cwd,但它只引用调用脚本的目录,而不是脚本本身。例如,假设我在/home/kyle/目录下,然后运行以下命令:
node /home/kyle/some/dir/file.js
如果我调用process.cwd(),我会得到/home/kyle/,而不是/home/kyle/some/dir/。有办法得到那个目录吗?
当前回答
I know this is pretty old, and the original question I was responding to is marked as duplicate and directed here, but I ran into an issue trying to get jasmine-reporters to work and didn't like the idea that I had to downgrade in order for it to work. I found out that jasmine-reporters wasn't resolving the savePath correctly and was actually putting the reports folder output in jasmine-reporters directory instead of the root directory of where I ran gulp. In order to make this work correctly I ended up using process.env.INIT_CWD to get the initial Current Working Directory which should be the directory where you ran gulp. Hope this helps someone.
var reporters = require('jasmine-reporters');
var junitReporter = new reporters.JUnitXmlReporter({
savePath: process.env.INIT_CWD + '/report/e2e/',
consolidateAll: true,
captureStdout: true
});
其他回答
使用path模块的basename方法:
var path = require('path');
var filename = path.basename(__filename);
console.log(filename);
下面是上面例子的文档。
正如Dan指出的,Node正在处理带有“——experimental-modules”标志的ECMAScript模块。节点12仍然支持前面提到的__dirname和__filename。
如果您正在使用——experimental-modules标志,还有另一种方法。
另一种方法是获取当前ES模块的路径:
import { fileURLToPath } from 'url';
const __filename = fileURLToPath(new URL(import.meta.url));
对于包含当前模块的目录:
import { fileURLToPath } from 'url';
import path from 'path';
const __dirname = path.dirname(fileURLToPath(new URL(import.meta.url)));
Index.js中包含要导出的模块的任何文件夹
const entries = {};
for (const aFile of require('fs').readdirSync(__dirname, { withFileTypes: true }).filter(ent => ent.isFile() && ent.name !== 'index.js')) {
const [ name, suffix ] = aFile.name.split('.');
entries[name] = require(`./${aFile.name}`);
}
module.exports = entries;
这将找到当前目录的根目录下的所有文件,要求并导出与文件名干相同的导出名称的每个文件。
基本上你可以这样做:
fs.readFile(path.resolve(__dirname, 'settings.json'), 'UTF-8', callback);
使用resolve()而不是连接'/'或'\',否则您将遇到跨平台问题。
注意:__dirname是模块或包含脚本的本地路径。如果你正在编写一个插件,需要知道主脚本的路径,它是:
require.main.filename
或者,获取文件夹名称:
require('path').dirname(require.main.filename)
NodeJS公开了一个名为__dirname的全局变量。
__dirname返回JavaScript文件所在文件夹的完整路径。
因此,作为一个例子,对于Windows,如果我们用下面的行创建一个脚本文件:
console.log(__dirname);
然后使用以下命令运行脚本:
node ./innerFolder1/innerFolder2/innerFolder3/index.js
输出将是: C: \用户…<项目目录> \ innerFolder1 \ innerFolder2 \ innerFolder3
var settings =
JSON.parse(
require('fs').readFileSync(
require('path').resolve(
__dirname,
'settings.json'),
'utf8'));