50 lines
1.5 KiB
JavaScript
50 lines
1.5 KiB
JavaScript
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/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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var getPaths = require("./getPaths");
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var forEachBail = require("./forEachBail");
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function SymlinkPlugin(source, target) {
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this.source = source;
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this.target = target;
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}
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module.exports = SymlinkPlugin;
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SymlinkPlugin.prototype.apply = function(resolver) {
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var target = this.target;
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resolver.plugin(this.source, function(request, callback) {
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var _this = this;
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var fs = _this.fileSystem;
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var pathsResult = getPaths(request.path);
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var pathSeqments = pathsResult.seqments;
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var paths = pathsResult.paths;
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var containsSymlink = false;
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forEachBail(paths.map(function(_, i) {
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return i;
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}), function(idx, callback) {
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fs.readlink(paths[idx], function(err, result) {
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if(!err && result) {
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pathSeqments[idx] = result;
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containsSymlink = true;
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// Shortcut when absolute symlink found
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if(/^(\/|[a-zA-z]:($|\\))/.test(result))
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return callback(null, idx);
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}
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callback();
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});
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}, function(err, idx) {
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if(!containsSymlink) return callback();
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var resultSeqments = typeof idx === "number" ? pathSeqments.slice(0, idx + 1) : pathSeqments.slice();
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var result = resultSeqments.reverse().reduce(function(a, b) {
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return _this.join(a, b);
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});
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var obj = Object.assign({}, request, {
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path: result
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});
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resolver.doResolve(target, obj, "resolved symlink to " + result, callback);
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});
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});
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};
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