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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
/** @typedef {import("./Resolver")} Resolver */
/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
module.exports = class DirectoryExistsPlugin {
/**
* @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);
resolver
.getHook(this.source)
.tapAsync(
"DirectoryExistsPlugin",
(request, resolveContext, callback) => {
const fs = resolver.fileSystem;
const directory = request.path;
if (!directory) return callback();
fs.stat(directory, (err, stat) => {
if (err || !stat) {
if (resolveContext.missingDependencies)
resolveContext.missingDependencies.add(directory);
if (resolveContext.log)
resolveContext.log(directory + " doesn't exist");
return callback();
}
if (!stat.isDirectory()) {
if (resolveContext.missingDependencies)
resolveContext.missingDependencies.add(directory);
if (resolveContext.log)
resolveContext.log(directory + " is not a directory");
return callback();
}
if (resolveContext.fileDependencies)
resolveContext.fileDependencies.add(directory);
resolver.doResolve(
target,
request,
`existing directory ${directory}`,
resolveContext,
callback
);
});
}
);
}
};
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