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/* | |
MIT License http://www.opensource.org/licenses/mit-license.php | |
Author Ivan Kopeykin @vankop | |
*/ | |
; | |
const forEachBail = require("./forEachBail"); | |
/** @typedef {import("./Resolver")} Resolver */ | |
/** @typedef {import("./Resolver").ResolveRequest} ResolveRequest */ | |
/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */ | |
class RootsPlugin { | |
/** | |
* @param {string | ResolveStepHook} source source hook | |
* @param {Set<string>} roots roots | |
* @param {string | ResolveStepHook} target target hook | |
*/ | |
constructor(source, roots, target) { | |
this.roots = Array.from(roots); | |
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("RootsPlugin", (request, resolveContext, callback) => { | |
const req = request.request; | |
if (!req) return callback(); | |
if (!req.startsWith("/")) return callback(); | |
forEachBail( | |
this.roots, | |
/** | |
* @param {string} root root | |
* @param {(err?: null|Error, result?: null|ResolveRequest) => void} callback callback | |
* @returns {void} | |
*/ | |
(root, callback) => { | |
const path = resolver.join(root, req.slice(1)); | |
/** @type {ResolveRequest} */ | |
const obj = { | |
...request, | |
path, | |
relativePath: request.relativePath && path | |
}; | |
resolver.doResolve( | |
target, | |
obj, | |
`root path ${root}`, | |
resolveContext, | |
callback | |
); | |
}, | |
callback | |
); | |
}); | |
} | |
} | |
module.exports = RootsPlugin; | |