89 lines
2.2 KiB
JavaScript
89 lines
2.2 KiB
JavaScript
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
const forEachBail = require("./forEachBail");
|
|
const getPaths = require("./getPaths");
|
|
const { getType, PathType } = require("./util/path");
|
|
|
|
/** @typedef {import("./Resolver")} Resolver */
|
|
/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
|
|
|
|
module.exports = class SymlinkPlugin {
|
|
/**
|
|
* @param {string | ResolveStepHook} source source
|
|
* @param {string | ResolveStepHook} target target
|
|
*/
|
|
constructor(source, target) {
|
|
this.source = source;
|
|
this.target = target;
|
|
}
|
|
|
|
/**
|
|
* @param {Resolver} resolver the resolver
|
|
* @returns {void}
|
|
*/
|
|
apply(resolver) {
|
|
const target = resolver.ensureHook(this.target);
|
|
const fs = resolver.fileSystem;
|
|
resolver
|
|
.getHook(this.source)
|
|
.tapAsync("SymlinkPlugin", (request, resolveContext, callback) => {
|
|
if (request.ignoreSymlinks) return callback();
|
|
const pathsResult = getPaths(request.path);
|
|
const pathSegments = pathsResult.segments;
|
|
const paths = pathsResult.paths;
|
|
|
|
let containsSymlink = false;
|
|
let idx = -1;
|
|
forEachBail(
|
|
paths,
|
|
(path, callback) => {
|
|
idx++;
|
|
if (resolveContext.fileDependencies)
|
|
resolveContext.fileDependencies.add(path);
|
|
fs.readlink(path, (err, result) => {
|
|
if (!err && result) {
|
|
pathSegments[idx] = result;
|
|
containsSymlink = true;
|
|
// Shortcut when absolute symlink found
|
|
const resultType = getType(result.toString());
|
|
if (
|
|
resultType === PathType.AbsoluteWin ||
|
|
resultType === PathType.AbsolutePosix
|
|
) {
|
|
return callback(null, idx);
|
|
}
|
|
}
|
|
callback();
|
|
});
|
|
},
|
|
(err, idx) => {
|
|
if (!containsSymlink) return callback();
|
|
const resultSegments =
|
|
typeof idx === "number"
|
|
? pathSegments.slice(0, idx + 1)
|
|
: pathSegments.slice();
|
|
const result = resultSegments.reduceRight((a, b) => {
|
|
return resolver.join(a, b);
|
|
});
|
|
const obj = {
|
|
...request,
|
|
path: result
|
|
};
|
|
resolver.doResolve(
|
|
target,
|
|
obj,
|
|
"resolved symlink to " + result,
|
|
resolveContext,
|
|
callback
|
|
);
|
|
}
|
|
);
|
|
});
|
|
}
|
|
};
|