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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const DescriptionFileUtils = require("./DescriptionFileUtils");
module.exports = class DescriptionFilePlugin {
constructor(source, filenames, target) {
this.source = source;
this.filenames = [].concat(filenames);
this.target = target;
}
apply(resolver) {
const target = resolver.ensureHook(this.target);
resolver
.getHook(this.source)
.tapAsync(
"DescriptionFilePlugin",
(request, resolveContext, callback) => {
const directory = request.path;
DescriptionFileUtils.loadDescriptionFile(
resolver,
directory,
this.filenames,
resolveContext,
(err, result) => {
if (err) return callback(err);
if (!result) {
if (resolveContext.missing) {
this.filenames.forEach(filename => {
resolveContext.missing.add(
resolver.join(directory, filename)
);
});
}
if (resolveContext.log)
resolveContext.log("No description file found");
return callback();
}
const relativePath =
"." +
request.path
.substr(result.directory.length)
.replace(/\\/g, "/");
const obj = Object.assign({}, request, {
descriptionFilePath: result.path,
descriptionFileData: result.content,
descriptionFileRoot: result.directory,
relativePath: relativePath
});
resolver.doResolve(
target,
obj,
"using description file: " +
result.path +
" (relative path: " +
relativePath +
")",
resolveContext,
(err, result) => {
if (err) return callback(err);
// Don't allow other processing
if (result === undefined) return callback(null, null);
callback(null, result);
}
);
}
);
}
);
}
};
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