@angular-devkit/build-angular
Version:
Angular Webpack Build Facade
192 lines • 22.2 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.loadProxyConfiguration = void 0;
const fast_glob_1 = require("fast-glob");
const node_fs_1 = require("node:fs");
const promises_1 = require("node:fs/promises");
const node_path_1 = require("node:path");
const node_url_1 = require("node:url");
const picomatch_1 = require("picomatch");
const error_1 = require("../../utils/error");
const load_esm_1 = require("../../utils/load-esm");
async function loadProxyConfiguration(root, proxyConfig, normalize = false) {
if (!proxyConfig) {
return undefined;
}
const proxyPath = (0, node_path_1.resolve)(root, proxyConfig);
if (!(0, node_fs_1.existsSync)(proxyPath)) {
throw new Error(`Proxy configuration file ${proxyPath} does not exist.`);
}
let proxyConfiguration;
switch ((0, node_path_1.extname)(proxyPath)) {
case '.json': {
const content = await (0, promises_1.readFile)(proxyPath, 'utf-8');
const { parse, printParseErrorCode } = await Promise.resolve().then(() => __importStar(require('jsonc-parser')));
const parseErrors = [];
proxyConfiguration = parse(content, parseErrors, { allowTrailingComma: true });
if (parseErrors.length > 0) {
let errorMessage = `Proxy configuration file ${proxyPath} contains parse errors:`;
for (const parseError of parseErrors) {
const { line, column } = getJsonErrorLineColumn(parseError.offset, content);
errorMessage += `\n[${line}, ${column}] ${printParseErrorCode(parseError.error)}`;
}
throw new Error(errorMessage);
}
break;
}
case '.mjs':
// Load the ESM configuration file using the TypeScript dynamic import workaround.
// Once TypeScript provides support for keeping the dynamic import this workaround can be
// changed to a direct dynamic import.
proxyConfiguration = (await (0, load_esm_1.loadEsmModule)((0, node_url_1.pathToFileURL)(proxyPath)))
.default;
break;
case '.cjs':
proxyConfiguration = require(proxyPath);
break;
default:
// The file could be either CommonJS or ESM.
// CommonJS is tried first then ESM if loading fails.
try {
proxyConfiguration = require(proxyPath);
break;
}
catch (e) {
(0, error_1.assertIsError)(e);
if (e.code === 'ERR_REQUIRE_ESM') {
// Load the ESM configuration file using the TypeScript dynamic import workaround.
// Once TypeScript provides support for keeping the dynamic import this workaround can be
// changed to a direct dynamic import.
proxyConfiguration = (await (0, load_esm_1.loadEsmModule)((0, node_url_1.pathToFileURL)(proxyPath)))
.default;
break;
}
throw e;
}
}
if (normalize) {
proxyConfiguration = normalizeProxyConfiguration(proxyConfiguration);
}
return proxyConfiguration;
}
exports.loadProxyConfiguration = loadProxyConfiguration;
/**
* Converts glob patterns to regular expressions to support Vite's proxy option.
* Also converts the Webpack supported array form to an object form supported by both.
*
* @param proxy A proxy configuration object.
*/
function normalizeProxyConfiguration(proxy) {
let normalizedProxy;
if (Array.isArray(proxy)) {
// Construct an object-form proxy configuration from the array
normalizedProxy = {};
for (const proxyEntry of proxy) {
if (!('context' in proxyEntry)) {
continue;
}
if (!Array.isArray(proxyEntry.context)) {
continue;
}
// Array-form entries contain a context string array with the path(s)
// to use for the configuration entry.
const context = proxyEntry.context;
delete proxyEntry.context;
for (const contextEntry of context) {
if (typeof contextEntry !== 'string') {
continue;
}
normalizedProxy[contextEntry] = proxyEntry;
}
}
}
else {
normalizedProxy = proxy;
}
// TODO: Consider upstreaming glob support
for (const key of Object.keys(normalizedProxy)) {
if ((0, fast_glob_1.isDynamicPattern)(key)) {
const { output } = (0, picomatch_1.parse)(key);
normalizedProxy[`^${output}$`] = normalizedProxy[key];
delete normalizedProxy[key];
}
}
// Replace `pathRewrite` field with a `rewrite` function
for (const proxyEntry of Object.values(normalizedProxy)) {
if ('pathRewrite' in proxyEntry &&
proxyEntry.pathRewrite &&
typeof proxyEntry.pathRewrite === 'object') {
// Preprocess path rewrite entries
const pathRewriteEntries = [];
for (const [pattern, value] of Object.entries(proxyEntry.pathRewrite)) {
pathRewriteEntries.push([new RegExp(pattern), value]);
}
proxyEntry.rewrite = pathRewriter.bind(undefined, pathRewriteEntries);
delete proxyEntry.pathRewrite;
}
}
return normalizedProxy;
}
function pathRewriter(pathRewriteEntries, path) {
for (const [pattern, value] of pathRewriteEntries) {
const updated = path.replace(pattern, value);
if (path !== updated) {
return updated;
}
}
return path;
}
/**
* Calculates the line and column for an error offset in the content of a JSON file.
* @param location The offset error location from the beginning of the content.
* @param content The full content of the file containing the error.
* @returns An object containing the line and column
*/
function getJsonErrorLineColumn(offset, content) {
if (offset === 0) {
return { line: 1, column: 1 };
}
let line = 0;
let position = 0;
// eslint-disable-next-line no-constant-condition
while (true) {
++line;
const nextNewline = content.indexOf('\n', position);
if (nextNewline === -1 || nextNewline > offset) {
break;
}
position = nextNewline + 1;
}
return { line, column: offset - position + 1 };
}
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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport { isDynamicPattern } from 'fast-glob';\nimport { existsSync } from 'node:fs';\nimport { readFile } from 'node:fs/promises';\nimport { extname, resolve } from 'node:path';\nimport { pathToFileURL } from 'node:url';\nimport { parse as parseGlob } from 'picomatch';\nimport { assertIsError } from '../../utils/error';\nimport { loadEsmModule } from '../../utils/load-esm';\n\nexport async function loadProxyConfiguration(\n  root: string,\n  proxyConfig: string | undefined,\n  normalize = false,\n) {\n  if (!proxyConfig) {\n    return undefined;\n  }\n\n  const proxyPath = resolve(root, proxyConfig);\n\n  if (!existsSync(proxyPath)) {\n    throw new Error(`Proxy configuration file ${proxyPath} does not exist.`);\n  }\n\n  let proxyConfiguration;\n  switch (extname(proxyPath)) {\n    case '.json': {\n      const content = await readFile(proxyPath, 'utf-8');\n\n      const { parse, printParseErrorCode } = await import('jsonc-parser');\n      const parseErrors: import('jsonc-parser').ParseError[] = [];\n      proxyConfiguration = parse(content, parseErrors, { allowTrailingComma: true });\n\n      if (parseErrors.length > 0) {\n        let errorMessage = `Proxy configuration file ${proxyPath} contains parse errors:`;\n        for (const parseError of parseErrors) {\n          const { line, column } = getJsonErrorLineColumn(parseError.offset, content);\n          errorMessage += `\\n[${line}, ${column}] ${printParseErrorCode(parseError.error)}`;\n        }\n        throw new Error(errorMessage);\n      }\n\n      break;\n    }\n    case '.mjs':\n      // Load the ESM configuration file using the TypeScript dynamic import workaround.\n      // Once TypeScript provides support for keeping the dynamic import this workaround can be\n      // changed to a direct dynamic import.\n      proxyConfiguration = (await loadEsmModule<{ default: unknown }>(pathToFileURL(proxyPath)))\n        .default;\n      break;\n    case '.cjs':\n      proxyConfiguration = require(proxyPath);\n      break;\n    default:\n      // The file could be either CommonJS or ESM.\n      // CommonJS is tried first then ESM if loading fails.\n      try {\n        proxyConfiguration = require(proxyPath);\n        break;\n      } catch (e) {\n        assertIsError(e);\n        if (e.code === 'ERR_REQUIRE_ESM') {\n          // Load the ESM configuration file using the TypeScript dynamic import workaround.\n          // Once TypeScript provides support for keeping the dynamic import this workaround can be\n          // changed to a direct dynamic import.\n          proxyConfiguration = (await loadEsmModule<{ default: unknown }>(pathToFileURL(proxyPath)))\n            .default;\n          break;\n        }\n\n        throw e;\n      }\n  }\n\n  if (normalize) {\n    proxyConfiguration = normalizeProxyConfiguration(proxyConfiguration);\n  }\n\n  return proxyConfiguration;\n}\n\n/**\n * Converts glob patterns to regular expressions to support Vite's proxy option.\n * Also converts the Webpack supported array form to an object form supported by both.\n *\n * @param proxy A proxy configuration object.\n */\nfunction normalizeProxyConfiguration(\n  proxy: Record<string, object> | object[],\n): Record<string, object> {\n  let normalizedProxy: Record<string, object> | undefined;\n\n  if (Array.isArray(proxy)) {\n    // Construct an object-form proxy configuration from the array\n    normalizedProxy = {};\n    for (const proxyEntry of proxy) {\n      if (!('context' in proxyEntry)) {\n        continue;\n      }\n      if (!Array.isArray(proxyEntry.context)) {\n        continue;\n      }\n\n      // Array-form entries contain a context string array with the path(s)\n      // to use for the configuration entry.\n      const context = proxyEntry.context;\n      delete proxyEntry.context;\n      for (const contextEntry of context) {\n        if (typeof contextEntry !== 'string') {\n          continue;\n        }\n\n        normalizedProxy[contextEntry] = proxyEntry;\n      }\n    }\n  } else {\n    normalizedProxy = proxy;\n  }\n\n  // TODO: Consider upstreaming glob support\n  for (const key of Object.keys(normalizedProxy)) {\n    if (isDynamicPattern(key)) {\n      const { output } = parseGlob(key);\n      normalizedProxy[`^${output}$`] = normalizedProxy[key];\n      delete normalizedProxy[key];\n    }\n  }\n\n  // Replace `pathRewrite` field with a `rewrite` function\n  for (const proxyEntry of Object.values(normalizedProxy)) {\n    if (\n      'pathRewrite' in proxyEntry &&\n      proxyEntry.pathRewrite &&\n      typeof proxyEntry.pathRewrite === 'object'\n    ) {\n      // Preprocess path rewrite entries\n      const pathRewriteEntries: [RegExp, string][] = [];\n      for (const [pattern, value] of Object.entries(\n        proxyEntry.pathRewrite as Record<string, string>,\n      )) {\n        pathRewriteEntries.push([new RegExp(pattern), value]);\n      }\n\n      (proxyEntry as Record<string, unknown>).rewrite = pathRewriter.bind(\n        undefined,\n        pathRewriteEntries,\n      );\n\n      delete proxyEntry.pathRewrite;\n    }\n  }\n\n  return normalizedProxy;\n}\n\nfunction pathRewriter(pathRewriteEntries: [RegExp, string][], path: string): string {\n  for (const [pattern, value] of pathRewriteEntries) {\n    const updated = path.replace(pattern, value);\n    if (path !== updated) {\n      return updated;\n    }\n  }\n\n  return path;\n}\n\n/**\n * Calculates the line and column for an error offset in the content of a JSON file.\n * @param location The offset error location from the beginning of the content.\n * @param content The full content of the file containing the error.\n * @returns An object containing the line and column\n */\nfunction getJsonErrorLineColumn(offset: number, content: string) {\n  if (offset === 0) {\n    return { line: 1, column: 1 };\n  }\n\n  let line = 0;\n  let position = 0;\n  // eslint-disable-next-line no-constant-condition\n  while (true) {\n    ++line;\n\n    const nextNewline = content.indexOf('\\n', position);\n    if (nextNewline === -1 || nextNewline > offset) {\n      break;\n    }\n\n    position = nextNewline + 1;\n  }\n\n  return { line, column: offset - position + 1 };\n}\n"]}