mirror of https://github.com/jkjoy/sunpeiwen.git
602 lines
17 KiB
JavaScript
602 lines
17 KiB
JavaScript
/*
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
|
Author Tobias Koppers @sokra
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
const { AsyncSeriesBailHook, AsyncSeriesHook, SyncHook } = require("tapable");
|
|
const createInnerContext = require("./createInnerContext");
|
|
const { parseIdentifier } = require("./util/identifier");
|
|
const {
|
|
normalize,
|
|
cachedJoin: join,
|
|
getType,
|
|
PathType
|
|
} = require("./util/path");
|
|
|
|
/** @typedef {import("./ResolverFactory").ResolveOptions} ResolveOptions */
|
|
|
|
/** @typedef {Error & {details?: string}} ErrorWithDetail */
|
|
|
|
/** @typedef {(err: ErrorWithDetail|null, res?: string|false, req?: ResolveRequest) => void} ResolveCallback */
|
|
|
|
/**
|
|
* @typedef {Object} FileSystemStats
|
|
* @property {function(): boolean} isDirectory
|
|
* @property {function(): boolean} isFile
|
|
*/
|
|
|
|
/**
|
|
* @typedef {Object} FileSystemDirent
|
|
* @property {Buffer | string} name
|
|
* @property {function(): boolean} isDirectory
|
|
* @property {function(): boolean} isFile
|
|
*/
|
|
|
|
/**
|
|
* @typedef {Object} PossibleFileSystemError
|
|
* @property {string=} code
|
|
* @property {number=} errno
|
|
* @property {string=} path
|
|
* @property {string=} syscall
|
|
*/
|
|
|
|
/**
|
|
* @template T
|
|
* @callback FileSystemCallback
|
|
* @param {PossibleFileSystemError & Error | null | undefined} err
|
|
* @param {T=} result
|
|
*/
|
|
|
|
/** @typedef {function((NodeJS.ErrnoException | null)=, (string | Buffer)[] | import("fs").Dirent[]=): void} DirentArrayCallback */
|
|
|
|
/**
|
|
* @typedef {Object} ReaddirOptions
|
|
* @property {BufferEncoding | null | 'buffer'} [encoding]
|
|
* @property {boolean | undefined} [withFileTypes=false]
|
|
*/
|
|
|
|
/**
|
|
* @typedef {Object} FileSystem
|
|
* @property {(function(string, FileSystemCallback<Buffer | string>): void) & function(string, object, FileSystemCallback<Buffer | string>): void} readFile
|
|
* @property {function(string, (ReaddirOptions | BufferEncoding | null | undefined | 'buffer' | DirentArrayCallback)=, DirentArrayCallback=): void} readdir
|
|
* @property {((function(string, FileSystemCallback<object>): void) & function(string, object, FileSystemCallback<object>): void)=} readJson
|
|
* @property {(function(string, FileSystemCallback<Buffer | string>): void) & function(string, object, FileSystemCallback<Buffer | string>): void} readlink
|
|
* @property {(function(string, FileSystemCallback<FileSystemStats>): void) & function(string, object, FileSystemCallback<Buffer | string>): void=} lstat
|
|
* @property {(function(string, FileSystemCallback<FileSystemStats>): void) & function(string, object, FileSystemCallback<Buffer | string>): void} stat
|
|
*/
|
|
|
|
/**
|
|
* @typedef {Object} SyncFileSystem
|
|
* @property {function(string, object=): Buffer | string} readFileSync
|
|
* @property {function(string, object=): (Buffer | string)[] | FileSystemDirent[]} readdirSync
|
|
* @property {(function(string, object=): object)=} readJsonSync
|
|
* @property {function(string, object=): Buffer | string} readlinkSync
|
|
* @property {function(string, object=): FileSystemStats=} lstatSync
|
|
* @property {function(string, object=): FileSystemStats} statSync
|
|
*/
|
|
|
|
/**
|
|
* @typedef {Object} ParsedIdentifier
|
|
* @property {string} request
|
|
* @property {string} query
|
|
* @property {string} fragment
|
|
* @property {boolean} directory
|
|
* @property {boolean} module
|
|
* @property {boolean} file
|
|
* @property {boolean} internal
|
|
*/
|
|
|
|
/** @typedef {string | number | boolean | null} JsonPrimitive */
|
|
/** @typedef {JsonValue[]} JsonArray */
|
|
/** @typedef {JsonPrimitive | JsonObject | JsonArray} JsonValue */
|
|
/** @typedef {{[Key in string]: JsonValue} & {[Key in string]?: JsonValue | undefined}} JsonObject */
|
|
|
|
/**
|
|
* @typedef {Object} BaseResolveRequest
|
|
* @property {string | false} path
|
|
* @property {object=} context
|
|
* @property {string=} descriptionFilePath
|
|
* @property {string=} descriptionFileRoot
|
|
* @property {JsonObject=} descriptionFileData
|
|
* @property {string=} relativePath
|
|
* @property {boolean=} ignoreSymlinks
|
|
* @property {boolean=} fullySpecified
|
|
* @property {string=} __innerRequest
|
|
* @property {string=} __innerRequest_request
|
|
* @property {string=} __innerRequest_relativePath
|
|
*/
|
|
|
|
/** @typedef {BaseResolveRequest & Partial<ParsedIdentifier>} ResolveRequest */
|
|
|
|
/**
|
|
* String with special formatting
|
|
* @typedef {string} StackEntry
|
|
*/
|
|
|
|
/**
|
|
* @template T
|
|
* @typedef {{ add: (item: T) => void }} WriteOnlySet
|
|
*/
|
|
|
|
/** @typedef {(function (ResolveRequest): void)} ResolveContextYield */
|
|
|
|
/**
|
|
* Resolve context
|
|
* @typedef {Object} ResolveContext
|
|
* @property {WriteOnlySet<string>=} contextDependencies
|
|
* @property {WriteOnlySet<string>=} fileDependencies files that was found on file system
|
|
* @property {WriteOnlySet<string>=} missingDependencies dependencies that was not found on file system
|
|
* @property {Set<StackEntry>=} stack set of hooks' calls. For instance, `resolve → parsedResolve → describedResolve`,
|
|
* @property {(function(string): void)=} log log function
|
|
* @property {ResolveContextYield=} yield yield result, if provided plugins can return several results
|
|
*/
|
|
|
|
/** @typedef {AsyncSeriesBailHook<[ResolveRequest, ResolveContext], ResolveRequest | null>} ResolveStepHook */
|
|
|
|
/**
|
|
* @typedef {Object} KnownHooks
|
|
* @property {SyncHook<[ResolveStepHook, ResolveRequest], void>} resolveStep
|
|
* @property {SyncHook<[ResolveRequest, Error]>} noResolve
|
|
* @property {ResolveStepHook} resolve
|
|
* @property {AsyncSeriesHook<[ResolveRequest, ResolveContext]>} result
|
|
*/
|
|
|
|
/**
|
|
* @typedef {{[key: string]: ResolveStepHook}} EnsuredHooks
|
|
*/
|
|
|
|
/**
|
|
* @param {string} str input string
|
|
* @returns {string} in camel case
|
|
*/
|
|
function toCamelCase(str) {
|
|
return str.replace(/-([a-z])/g, str => str.slice(1).toUpperCase());
|
|
}
|
|
|
|
class Resolver {
|
|
/**
|
|
* @param {ResolveStepHook} hook hook
|
|
* @param {ResolveRequest} request request
|
|
* @returns {StackEntry} stack entry
|
|
*/
|
|
static createStackEntry(hook, request) {
|
|
return (
|
|
hook.name +
|
|
": (" +
|
|
request.path +
|
|
") " +
|
|
(request.request || "") +
|
|
(request.query || "") +
|
|
(request.fragment || "") +
|
|
(request.directory ? " directory" : "") +
|
|
(request.module ? " module" : "")
|
|
);
|
|
}
|
|
|
|
/**
|
|
* @param {FileSystem} fileSystem a filesystem
|
|
* @param {ResolveOptions} options options
|
|
*/
|
|
constructor(fileSystem, options) {
|
|
this.fileSystem = fileSystem;
|
|
this.options = options;
|
|
/** @type {KnownHooks} */
|
|
this.hooks = {
|
|
resolveStep: new SyncHook(["hook", "request"], "resolveStep"),
|
|
noResolve: new SyncHook(["request", "error"], "noResolve"),
|
|
resolve: new AsyncSeriesBailHook(
|
|
["request", "resolveContext"],
|
|
"resolve"
|
|
),
|
|
result: new AsyncSeriesHook(["result", "resolveContext"], "result")
|
|
};
|
|
}
|
|
|
|
/**
|
|
* @param {string | ResolveStepHook} name hook name or hook itself
|
|
* @returns {ResolveStepHook} the hook
|
|
*/
|
|
ensureHook(name) {
|
|
if (typeof name !== "string") {
|
|
return name;
|
|
}
|
|
name = toCamelCase(name);
|
|
if (/^before/.test(name)) {
|
|
return /** @type {ResolveStepHook} */ (
|
|
this.ensureHook(name[6].toLowerCase() + name.slice(7)).withOptions({
|
|
stage: -10
|
|
})
|
|
);
|
|
}
|
|
if (/^after/.test(name)) {
|
|
return /** @type {ResolveStepHook} */ (
|
|
this.ensureHook(name[5].toLowerCase() + name.slice(6)).withOptions({
|
|
stage: 10
|
|
})
|
|
);
|
|
}
|
|
/** @type {ResolveStepHook} */
|
|
const hook = /** @type {KnownHooks & EnsuredHooks} */ (this.hooks)[name];
|
|
if (!hook) {
|
|
/** @type {KnownHooks & EnsuredHooks} */
|
|
(this.hooks)[name] = new AsyncSeriesBailHook(
|
|
["request", "resolveContext"],
|
|
name
|
|
);
|
|
|
|
return /** @type {KnownHooks & EnsuredHooks} */ (this.hooks)[name];
|
|
}
|
|
return hook;
|
|
}
|
|
|
|
/**
|
|
* @param {string | ResolveStepHook} name hook name or hook itself
|
|
* @returns {ResolveStepHook} the hook
|
|
*/
|
|
getHook(name) {
|
|
if (typeof name !== "string") {
|
|
return name;
|
|
}
|
|
name = toCamelCase(name);
|
|
if (/^before/.test(name)) {
|
|
return /** @type {ResolveStepHook} */ (
|
|
this.getHook(name[6].toLowerCase() + name.slice(7)).withOptions({
|
|
stage: -10
|
|
})
|
|
);
|
|
}
|
|
if (/^after/.test(name)) {
|
|
return /** @type {ResolveStepHook} */ (
|
|
this.getHook(name[5].toLowerCase() + name.slice(6)).withOptions({
|
|
stage: 10
|
|
})
|
|
);
|
|
}
|
|
/** @type {ResolveStepHook} */
|
|
const hook = /** @type {KnownHooks & EnsuredHooks} */ (this.hooks)[name];
|
|
if (!hook) {
|
|
throw new Error(`Hook ${name} doesn't exist`);
|
|
}
|
|
return hook;
|
|
}
|
|
|
|
/**
|
|
* @param {object} context context information object
|
|
* @param {string} path context path
|
|
* @param {string} request request string
|
|
* @returns {string | false} result
|
|
*/
|
|
resolveSync(context, path, request) {
|
|
/** @type {Error | null | undefined} */
|
|
let err = undefined;
|
|
/** @type {string | false | undefined} */
|
|
let result = undefined;
|
|
let sync = false;
|
|
this.resolve(context, path, request, {}, (e, r) => {
|
|
err = e;
|
|
result = r;
|
|
sync = true;
|
|
});
|
|
if (!sync) {
|
|
throw new Error(
|
|
"Cannot 'resolveSync' because the fileSystem is not sync. Use 'resolve'!"
|
|
);
|
|
}
|
|
if (err) throw err;
|
|
if (result === undefined) throw new Error("No result");
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* @param {object} context context information object
|
|
* @param {string} path context path
|
|
* @param {string} request request string
|
|
* @param {ResolveContext} resolveContext resolve context
|
|
* @param {ResolveCallback} callback callback function
|
|
* @returns {void}
|
|
*/
|
|
resolve(context, path, request, resolveContext, callback) {
|
|
if (!context || typeof context !== "object")
|
|
return callback(new Error("context argument is not an object"));
|
|
if (typeof path !== "string")
|
|
return callback(new Error("path argument is not a string"));
|
|
if (typeof request !== "string")
|
|
return callback(new Error("request argument is not a string"));
|
|
if (!resolveContext)
|
|
return callback(new Error("resolveContext argument is not set"));
|
|
|
|
/** @type {ResolveRequest} */
|
|
const obj = {
|
|
context: context,
|
|
path: path,
|
|
request: request
|
|
};
|
|
|
|
/** @type {ResolveContextYield | undefined} */
|
|
let yield_;
|
|
let yieldCalled = false;
|
|
/** @type {ResolveContextYield | undefined} */
|
|
let finishYield;
|
|
if (typeof resolveContext.yield === "function") {
|
|
const old = resolveContext.yield;
|
|
/**
|
|
* @param {ResolveRequest} obj object
|
|
*/
|
|
yield_ = obj => {
|
|
old(obj);
|
|
yieldCalled = true;
|
|
};
|
|
/**
|
|
* @param {ResolveRequest} result result
|
|
* @returns {void}
|
|
*/
|
|
finishYield = result => {
|
|
if (result) {
|
|
/** @type {ResolveContextYield} */ (yield_)(result);
|
|
}
|
|
callback(null);
|
|
};
|
|
}
|
|
|
|
const message = `resolve '${request}' in '${path}'`;
|
|
|
|
/**
|
|
* @param {ResolveRequest} result result
|
|
* @returns {void}
|
|
*/
|
|
const finishResolved = result => {
|
|
return callback(
|
|
null,
|
|
result.path === false
|
|
? false
|
|
: `${result.path.replace(/#/g, "\0#")}${
|
|
result.query ? result.query.replace(/#/g, "\0#") : ""
|
|
}${result.fragment || ""}`,
|
|
result
|
|
);
|
|
};
|
|
|
|
/**
|
|
* @param {string[]} log logs
|
|
* @returns {void}
|
|
*/
|
|
const finishWithoutResolve = log => {
|
|
/**
|
|
* @type {ErrorWithDetail}
|
|
*/
|
|
const error = new Error("Can't " + message);
|
|
error.details = log.join("\n");
|
|
this.hooks.noResolve.call(obj, error);
|
|
return callback(error);
|
|
};
|
|
|
|
if (resolveContext.log) {
|
|
// We need log anyway to capture it in case of an error
|
|
const parentLog = resolveContext.log;
|
|
/** @type {string[]} */
|
|
const log = [];
|
|
return this.doResolve(
|
|
this.hooks.resolve,
|
|
obj,
|
|
message,
|
|
{
|
|
log: msg => {
|
|
parentLog(msg);
|
|
log.push(msg);
|
|
},
|
|
yield: yield_,
|
|
fileDependencies: resolveContext.fileDependencies,
|
|
contextDependencies: resolveContext.contextDependencies,
|
|
missingDependencies: resolveContext.missingDependencies,
|
|
stack: resolveContext.stack
|
|
},
|
|
(err, result) => {
|
|
if (err) return callback(err);
|
|
|
|
if (yieldCalled || (result && yield_)) {
|
|
return /** @type {ResolveContextYield} */ (finishYield)(
|
|
/** @type {ResolveRequest} */ (result)
|
|
);
|
|
}
|
|
|
|
if (result) return finishResolved(result);
|
|
|
|
return finishWithoutResolve(log);
|
|
}
|
|
);
|
|
} else {
|
|
// Try to resolve assuming there is no error
|
|
// We don't log stuff in this case
|
|
return this.doResolve(
|
|
this.hooks.resolve,
|
|
obj,
|
|
message,
|
|
{
|
|
log: undefined,
|
|
yield: yield_,
|
|
fileDependencies: resolveContext.fileDependencies,
|
|
contextDependencies: resolveContext.contextDependencies,
|
|
missingDependencies: resolveContext.missingDependencies,
|
|
stack: resolveContext.stack
|
|
},
|
|
(err, result) => {
|
|
if (err) return callback(err);
|
|
|
|
if (yieldCalled || (result && yield_)) {
|
|
return /** @type {ResolveContextYield} */ (finishYield)(
|
|
/** @type {ResolveRequest} */ (result)
|
|
);
|
|
}
|
|
|
|
if (result) return finishResolved(result);
|
|
|
|
// log is missing for the error details
|
|
// so we redo the resolving for the log info
|
|
// this is more expensive to the success case
|
|
// is assumed by default
|
|
/** @type {string[]} */
|
|
const log = [];
|
|
|
|
return this.doResolve(
|
|
this.hooks.resolve,
|
|
obj,
|
|
message,
|
|
{
|
|
log: msg => log.push(msg),
|
|
yield: yield_,
|
|
stack: resolveContext.stack
|
|
},
|
|
(err, result) => {
|
|
if (err) return callback(err);
|
|
|
|
// In a case that there is a race condition and yield will be called
|
|
if (yieldCalled || (result && yield_)) {
|
|
return /** @type {ResolveContextYield} */ (finishYield)(
|
|
/** @type {ResolveRequest} */ (result)
|
|
);
|
|
}
|
|
|
|
return finishWithoutResolve(log);
|
|
}
|
|
);
|
|
}
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {ResolveStepHook} hook hook
|
|
* @param {ResolveRequest} request request
|
|
* @param {null|string} message string
|
|
* @param {ResolveContext} resolveContext resolver context
|
|
* @param {(err?: null|Error, result?: ResolveRequest) => void} callback callback
|
|
* @returns {void}
|
|
*/
|
|
doResolve(hook, request, message, resolveContext, callback) {
|
|
const stackEntry = Resolver.createStackEntry(hook, request);
|
|
|
|
/** @type {Set<string> | undefined} */
|
|
let newStack;
|
|
if (resolveContext.stack) {
|
|
newStack = new Set(resolveContext.stack);
|
|
if (resolveContext.stack.has(stackEntry)) {
|
|
/**
|
|
* Prevent recursion
|
|
* @type {Error & {recursion?: boolean}}
|
|
*/
|
|
const recursionError = new Error(
|
|
"Recursion in resolving\nStack:\n " +
|
|
Array.from(newStack).join("\n ")
|
|
);
|
|
recursionError.recursion = true;
|
|
if (resolveContext.log)
|
|
resolveContext.log("abort resolving because of recursion");
|
|
return callback(recursionError);
|
|
}
|
|
newStack.add(stackEntry);
|
|
} else {
|
|
newStack = new Set([stackEntry]);
|
|
}
|
|
this.hooks.resolveStep.call(hook, request);
|
|
|
|
if (hook.isUsed()) {
|
|
const innerContext = createInnerContext(
|
|
{
|
|
log: resolveContext.log,
|
|
yield: resolveContext.yield,
|
|
fileDependencies: resolveContext.fileDependencies,
|
|
contextDependencies: resolveContext.contextDependencies,
|
|
missingDependencies: resolveContext.missingDependencies,
|
|
stack: newStack
|
|
},
|
|
message
|
|
);
|
|
return hook.callAsync(request, innerContext, (err, result) => {
|
|
if (err) return callback(err);
|
|
if (result) return callback(null, result);
|
|
callback();
|
|
});
|
|
} else {
|
|
callback();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @param {string} identifier identifier
|
|
* @returns {ParsedIdentifier} parsed identifier
|
|
*/
|
|
parse(identifier) {
|
|
const part = {
|
|
request: "",
|
|
query: "",
|
|
fragment: "",
|
|
module: false,
|
|
directory: false,
|
|
file: false,
|
|
internal: false
|
|
};
|
|
|
|
const parsedIdentifier = parseIdentifier(identifier);
|
|
|
|
if (!parsedIdentifier) return part;
|
|
|
|
[part.request, part.query, part.fragment] = parsedIdentifier;
|
|
|
|
if (part.request.length > 0) {
|
|
part.internal = this.isPrivate(identifier);
|
|
part.module = this.isModule(part.request);
|
|
part.directory = this.isDirectory(part.request);
|
|
if (part.directory) {
|
|
part.request = part.request.slice(0, -1);
|
|
}
|
|
}
|
|
|
|
return part;
|
|
}
|
|
|
|
/**
|
|
* @param {string} path path
|
|
* @returns {boolean} true, if the path is a module
|
|
*/
|
|
isModule(path) {
|
|
return getType(path) === PathType.Normal;
|
|
}
|
|
|
|
/**
|
|
* @param {string} path path
|
|
* @returns {boolean} true, if the path is private
|
|
*/
|
|
isPrivate(path) {
|
|
return getType(path) === PathType.Internal;
|
|
}
|
|
|
|
/**
|
|
* @param {string} path a path
|
|
* @returns {boolean} true, if the path is a directory path
|
|
*/
|
|
isDirectory(path) {
|
|
return path.endsWith("/");
|
|
}
|
|
|
|
/**
|
|
* @param {string} path path
|
|
* @param {string} request request
|
|
* @returns {string} joined path
|
|
*/
|
|
join(path, request) {
|
|
return join(path, request);
|
|
}
|
|
|
|
/**
|
|
* @param {string} path path
|
|
* @returns {string} normalized path
|
|
*/
|
|
normalize(path) {
|
|
return normalize(path);
|
|
}
|
|
}
|
|
|
|
module.exports = Resolver;
|