253 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			253 lines
		
	
	
		
			10 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
"use strict";
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var __importDefault = (this && this.__importDefault) || function (mod) {
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    return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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const path_1 = __importDefault(require("path"));
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const virtual_stats_1 = require("./virtual-stats");
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let inode = 45000000;
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function checkActivation(instance) {
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    if (!instance._compiler) {
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        throw new Error('You must use this plugin only after creating webpack instance!');
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    }
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}
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function getModulePath(filePath, compiler) {
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    return path_1.default.isAbsolute(filePath) ? filePath : path_1.default.join(compiler.context, filePath);
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}
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function createWebpackData(result) {
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    return (backendOrStorage) => {
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        if (backendOrStorage._data) {
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            const curLevelIdx = backendOrStorage._currentLevel;
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            const curLevel = backendOrStorage._levels[curLevelIdx];
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            return {
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                result,
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                level: curLevel,
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            };
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        }
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        return [null, result];
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    };
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}
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function getData(storage, key) {
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    if (storage._data instanceof Map) {
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        return storage._data.get(key);
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    }
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    else if (storage._data) {
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        return storage.data[key];
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    }
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    else if (storage.data instanceof Map) {
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        return storage.data.get(key);
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    }
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    else {
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        return storage.data[key];
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    }
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}
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function setData(backendOrStorage, key, valueFactory) {
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    const value = valueFactory(backendOrStorage);
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    if (backendOrStorage._data instanceof Map) {
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        backendOrStorage._data.set(key, value);
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    }
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    else if (backendOrStorage._data) {
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        backendOrStorage.data[key] = value;
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    }
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    else if (backendOrStorage.data instanceof Map) {
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        backendOrStorage.data.set(key, value);
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    }
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    else {
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        backendOrStorage.data[key] = value;
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    }
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}
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function getStatStorage(fileSystem) {
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    if (fileSystem._statStorage) {
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        return fileSystem._statStorage;
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    }
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    else if (fileSystem._statBackend) {
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        return fileSystem._statBackend;
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    }
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    else {
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        throw new Error("Couldn't find a stat storage");
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    }
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}
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function getFileStorage(fileSystem) {
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    if (fileSystem._readFileStorage) {
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        return fileSystem._readFileStorage;
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    }
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    else if (fileSystem._readFileBackend) {
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        return fileSystem._readFileBackend;
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    }
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    else {
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        throw new Error("Couldn't find a readFileStorage");
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    }
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}
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function getReadDirBackend(fileSystem) {
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    if (fileSystem._readdirBackend) {
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        return fileSystem._readdirBackend;
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    }
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    else if (fileSystem._readdirStorage) {
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        return fileSystem._readdirStorage;
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    }
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    else {
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        throw new Error("Couldn't find a readDirStorage from Webpack Internals");
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    }
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}
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class VirtualModulesPlugin {
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    constructor(modules) {
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        this._compiler = null;
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        this._watcher = null;
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        this._staticModules = modules || null;
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    }
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    writeModule(filePath, contents) {
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        if (!this._compiler) {
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            throw new Error(`Plugin has not been initialized`);
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        }
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        checkActivation(this);
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        const len = contents ? contents.length : 0;
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        const time = Date.now();
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        const date = new Date(time);
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        const stats = new virtual_stats_1.VirtualStats({
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            dev: 8675309,
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            nlink: 0,
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            uid: 1000,
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            gid: 1000,
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            rdev: 0,
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            blksize: 4096,
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            ino: inode++,
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            mode: 33188,
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            size: len,
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            blocks: Math.floor(len / 4096),
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            atime: date,
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            mtime: date,
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            ctime: date,
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            birthtime: date,
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        });
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        const modulePath = getModulePath(filePath, this._compiler);
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        if (process.env.WVM_DEBUG)
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            console.log(this._compiler.name, 'Write virtual module:', modulePath, contents);
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        let finalWatchFileSystem = this._watcher && this._watcher.watchFileSystem;
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        while (finalWatchFileSystem && finalWatchFileSystem.wfs) {
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            finalWatchFileSystem = finalWatchFileSystem.wfs;
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        }
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        let finalInputFileSystem = this._compiler.inputFileSystem;
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        while (finalInputFileSystem && finalInputFileSystem._inputFileSystem) {
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            finalInputFileSystem = finalInputFileSystem._inputFileSystem;
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        }
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        finalInputFileSystem._writeVirtualFile(modulePath, stats, contents);
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        if (finalWatchFileSystem &&
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            (finalWatchFileSystem.watcher.fileWatchers.size || finalWatchFileSystem.watcher.fileWatchers.length)) {
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            const fileWatchers = finalWatchFileSystem.watcher.fileWatchers instanceof Map
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                ? Array.from(finalWatchFileSystem.watcher.fileWatchers.values())
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                : finalWatchFileSystem.watcher.fileWatchers;
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            for (let fileWatcher of fileWatchers) {
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                if ('watcher' in fileWatcher) {
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                    fileWatcher = fileWatcher.watcher;
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                }
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                if (fileWatcher.path === modulePath) {
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                    if (process.env.DEBUG)
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                        console.log(this._compiler.name, 'Emit file change:', modulePath, time);
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                    delete fileWatcher.directoryWatcher._cachedTimeInfoEntries;
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                    fileWatcher.emit('change', time, null);
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                }
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            }
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        }
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    }
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    apply(compiler) {
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        this._compiler = compiler;
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        const afterEnvironmentHook = () => {
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            let finalInputFileSystem = compiler.inputFileSystem;
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            while (finalInputFileSystem && finalInputFileSystem._inputFileSystem) {
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                finalInputFileSystem = finalInputFileSystem._inputFileSystem;
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            }
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            if (!finalInputFileSystem._writeVirtualFile) {
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                const originalPurge = finalInputFileSystem.purge;
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                finalInputFileSystem.purge = () => {
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                    originalPurge.apply(finalInputFileSystem, []);
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                    if (finalInputFileSystem._virtualFiles) {
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                        Object.keys(finalInputFileSystem._virtualFiles).forEach((file) => {
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                            const data = finalInputFileSystem._virtualFiles[file];
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                            finalInputFileSystem._writeVirtualFile(file, data.stats, data.contents);
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                        });
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                    }
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                };
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                finalInputFileSystem._writeVirtualFile = (file, stats, contents) => {
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                    const statStorage = getStatStorage(finalInputFileSystem);
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                    const fileStorage = getFileStorage(finalInputFileSystem);
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                    const readDirStorage = getReadDirBackend(finalInputFileSystem);
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                    finalInputFileSystem._virtualFiles = finalInputFileSystem._virtualFiles || {};
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                    finalInputFileSystem._virtualFiles[file] = { stats: stats, contents: contents };
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                    setData(statStorage, file, createWebpackData(stats));
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                    setData(fileStorage, file, createWebpackData(contents));
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                    const segments = file.split(/[\\/]/);
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                    let count = segments.length - 1;
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                    const minCount = segments[0] ? 1 : 0;
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                    while (count > minCount) {
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                        const dir = segments.slice(0, count).join(path_1.default.sep) || path_1.default.sep;
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                        try {
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                            finalInputFileSystem.readdirSync(dir);
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                        }
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                        catch (e) {
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                            const time = Date.now();
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                            const dirStats = new virtual_stats_1.VirtualStats({
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                                dev: 8675309,
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                                nlink: 0,
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                                uid: 1000,
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                                gid: 1000,
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                                rdev: 0,
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                                blksize: 4096,
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                                ino: inode++,
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                                mode: 16877,
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                                size: stats.size,
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                                blocks: Math.floor(stats.size / 4096),
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                                atime: time,
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                                mtime: time,
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                                ctime: time,
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                                birthtime: time,
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                            });
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                            setData(readDirStorage, dir, createWebpackData([]));
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                            setData(statStorage, dir, createWebpackData(dirStats));
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                        }
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                        let dirData = getData(getReadDirBackend(finalInputFileSystem), dir);
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                        dirData = dirData[1] || dirData.result;
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                        const filename = segments[count];
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                        if (dirData.indexOf(filename) < 0) {
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                            const files = dirData.concat([filename]).sort();
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                            setData(getReadDirBackend(finalInputFileSystem), dir, createWebpackData(files));
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                        }
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                        else {
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                            break;
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                        }
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                        count--;
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                    }
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                };
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            }
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        };
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        const afterResolversHook = () => {
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            if (this._staticModules) {
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                for (const [filePath, contents] of Object.entries(this._staticModules)) {
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                    this.writeModule(filePath, contents);
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                }
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                this._staticModules = null;
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            }
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        };
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        const watchRunHook = (watcher, callback) => {
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            this._watcher = watcher.compiler || watcher;
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            const virtualFiles = compiler.inputFileSystem._virtualFiles;
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            const fts = compiler.fileTimestamps;
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            if (virtualFiles && fts && typeof fts.set === 'function') {
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                Object.keys(virtualFiles).forEach((file) => {
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                    fts.set(file, +virtualFiles[file].stats.mtime);
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                });
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            }
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            callback();
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        };
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        if (compiler.hooks) {
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            compiler.hooks.afterEnvironment.tap('VirtualModulesPlugin', afterEnvironmentHook);
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            compiler.hooks.afterResolvers.tap('VirtualModulesPlugin', afterResolversHook);
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            compiler.hooks.watchRun.tapAsync('VirtualModulesPlugin', watchRunHook);
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        }
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        else {
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            compiler.plugin('after-environment', afterEnvironmentHook);
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            compiler.plugin('after-resolvers', afterResolversHook);
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            compiler.plugin('watch-run', watchRunHook);
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        }
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    }
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}
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module.exports = VirtualModulesPlugin;
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//# sourceMappingURL=index.js.map
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