62 lines
1.6 KiB
JavaScript
62 lines
1.6 KiB
JavaScript
'use strict';
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const u = require('universalify').fromCallback;
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const path = require('path');
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const fs = require('graceful-fs');
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const mkdir = require('../mkdirs');
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const pathExists = require('../path-exists').pathExists;
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function createLink(srcpath, dstpath, callback) {
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function makeLink(srcpath, dstpath) {
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fs.link(srcpath, dstpath, (err) => {
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if (err) return callback(err);
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callback(null);
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});
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}
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pathExists(dstpath, (err, destinationExists) => {
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if (err) return callback(err);
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if (destinationExists) return callback(null);
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fs.lstat(srcpath, (err) => {
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if (err) {
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err.message = err.message.replace('lstat', 'ensureLink');
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return callback(err);
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}
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const dir = path.dirname(dstpath);
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pathExists(dir, (err, dirExists) => {
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if (err) return callback(err);
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if (dirExists) return makeLink(srcpath, dstpath);
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mkdir.mkdirs(dir, (err) => {
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if (err) return callback(err);
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makeLink(srcpath, dstpath);
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});
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});
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});
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});
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}
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function createLinkSync(srcpath, dstpath) {
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const destinationExists = fs.existsSync(dstpath);
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if (destinationExists) return undefined;
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try {
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fs.lstatSync(srcpath);
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} catch (err) {
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err.message = err.message.replace('lstat', 'ensureLink');
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throw err;
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}
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const dir = path.dirname(dstpath);
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const dirExists = fs.existsSync(dir);
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if (dirExists) return fs.linkSync(srcpath, dstpath);
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mkdir.mkdirsSync(dir);
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return fs.linkSync(srcpath, dstpath);
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}
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module.exports = {
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createLink: u(createLink),
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createLinkSync,
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};
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