@ngtools/webpack
Version:
Webpack plugin that AoT compiles your Angular components and modules.
106 lines • 10 kB
JavaScript
;
/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.createWebpackSystem = void 0;
const ts = __importStar(require("typescript"));
const paths_1 = require("./paths");
function shouldNotWrite() {
throw new Error('Webpack TypeScript System should not write.');
}
function createWebpackSystem(input, currentDirectory) {
// Webpack's CachedInputFileSystem uses the default directory separator in the paths it uses
// for keys to its cache. If the keys do not match then the file watcher will not purge outdated
// files and cause stale data to be used in the next rebuild. TypeScript always uses a `/` (POSIX)
// directory separator internally which is also supported with Windows system APIs. However,
// if file operations are performed with the non-default directory separator, the Webpack cache
// will contain a key that will not be purged. `externalizePath` ensures the paths are as expected.
const system = {
...ts.sys,
readFile(path) {
let data;
try {
data = input.readFileSync((0, paths_1.externalizePath)(path));
}
catch (_a) {
return undefined;
}
// Strip BOM if present
let start = 0;
if (data.length > 3 && data[0] === 0xef && data[1] === 0xbb && data[2] === 0xbf) {
start = 3;
}
return data.toString('utf8', start);
},
getFileSize(path) {
try {
return input.statSync((0, paths_1.externalizePath)(path)).size;
}
catch (_a) {
return 0;
}
},
fileExists(path) {
try {
return input.statSync((0, paths_1.externalizePath)(path)).isFile();
}
catch (_a) {
return false;
}
},
directoryExists(path) {
try {
return input.statSync((0, paths_1.externalizePath)(path)).isDirectory();
}
catch (_a) {
return false;
}
},
getModifiedTime(path) {
try {
return input.statSync((0, paths_1.externalizePath)(path)).mtime;
}
catch (_a) {
return undefined;
}
},
getCurrentDirectory() {
return currentDirectory;
},
writeFile: shouldNotWrite,
createDirectory: shouldNotWrite,
deleteFile: shouldNotWrite,
setModifiedTime: shouldNotWrite,
};
return system;
}
exports.createWebpackSystem = createWebpackSystem;
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