forked from zhurui/management
50 lines
1.5 KiB
JavaScript
50 lines
1.5 KiB
JavaScript
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
"use strict";
|
|
|
|
const getPaths = require("./getPaths");
|
|
const forEachBail = require("./forEachBail");
|
|
|
|
module.exports = class SymlinkPlugin {
|
|
constructor(source, target) {
|
|
this.source = source;
|
|
this.target = target;
|
|
}
|
|
|
|
apply(resolver) {
|
|
const target = resolver.ensureHook(this.target);
|
|
const fs = resolver.fileSystem;
|
|
resolver.getHook(this.source).tapAsync("SymlinkPlugin", (request, resolveContext, callback) => {
|
|
const pathsResult = getPaths(request.path);
|
|
const pathSeqments = pathsResult.seqments;
|
|
const paths = pathsResult.paths;
|
|
|
|
let containsSymlink = false;
|
|
forEachBail.withIndex(paths, (path, idx, callback) => {
|
|
fs.readlink(path, (err, result) => {
|
|
if(!err && result) {
|
|
pathSeqments[idx] = result;
|
|
containsSymlink = true;
|
|
// Shortcut when absolute symlink found
|
|
if(/^(\/|[a-zA-Z]:($|\\))/.test(result))
|
|
return callback(null, idx);
|
|
}
|
|
callback();
|
|
});
|
|
}, (err, idx) => {
|
|
if(!containsSymlink) return callback();
|
|
const resultSeqments = typeof idx === "number" ? pathSeqments.slice(0, idx + 1) : pathSeqments.slice();
|
|
const result = resultSeqments.reverse().reduce((a, b) => {
|
|
return resolver.join(a, b);
|
|
});
|
|
const obj = Object.assign({}, request, {
|
|
path: result
|
|
});
|
|
resolver.doResolve(target, obj, "resolved symlink to " + result, resolveContext, callback);
|
|
});
|
|
});
|
|
}
|
|
};
|