angular-cn/packages/bazel/test/ngc-wrapped/test_support.ts

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/**
* @license
* Copyright Google Inc. 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
*/
import {runOneBuild} from '@angular/bazel';
import * as fs from 'fs';
import * as path from 'path';
import * as ts from 'typescript';
import {createTsConfig} from './tsconfig_template';
export interface TestSupport {
basePath: string;
runfilesPath: string;
angularCorePath: string;
typesRoots: string;
writeConfig({
srcTargetPath, depPaths, pathMapping,
}: {
srcTargetPath: string,
depPaths?: string[],
pathMapping?: Array<{moduleName: string; path: string;}>,
}): {compilerOptions: ts.CompilerOptions};
read(fileName: string): string;
write(fileName: string, content: string): void;
writeFiles(...mockDirs: {[fileName: string]: string}[]): void;
shouldExist(fileName: string): void;
shouldNotExist(fileName: string): void;
runOneBuild(): boolean;
}
export function setup(
{
bazelBin = 'bazel-bin', tsconfig = 'tsconfig.json',
}: {
bazelBin?: string,
tsconfig?: string,
} = {}): TestSupport {
const runfilesPath = process.env['TEST_SRCDIR'];
const basePath = makeTempDir(runfilesPath);
const bazelBinPath = path.resolve(basePath, bazelBin);
fs.mkdirSync(bazelBinPath);
const angularCorePath = path.dirname(require.resolve('angular/packages/core'));
const tsConfigJsonPath = path.resolve(basePath, tsconfig);
const emptyTsConfig = ts.readConfigFile(
require.resolve('angular/packages/bazel/test/ngc-wrapped/empty/empty_tsconfig.json'), read);
const typesRoots = (emptyTsConfig as any).config.compilerOptions.typeRoots[0];
return {
basePath,
runfilesPath,
angularCorePath,
typesRoots,
write,
read,
writeFiles,
writeConfig,
shouldExist,
shouldNotExist,
runOneBuild: runOneBuildImpl,
};
// -----------------
// helpers
function mkdirp(dirname: string) {
const parent = path.dirname(dirname);
if (!fs.existsSync(parent)) {
mkdirp(parent);
}
fs.mkdirSync(dirname);
}
function write(fileName: string, content: string) {
const dir = path.dirname(fileName);
if (dir != '.') {
const newDir = path.resolve(basePath, dir);
if (!fs.existsSync(newDir)) mkdirp(newDir);
}
fs.writeFileSync(path.resolve(basePath, fileName), content, {encoding: 'utf-8'});
}
function read(fileName: string) {
return fs.readFileSync(path.resolve(basePath, fileName), {encoding: 'utf-8'});
}
function writeFiles(...mockDirs: {[fileName: string]: string}[]) {
mockDirs.forEach(
(dir) => { Object.keys(dir).forEach((fileName) => { write(fileName, dir[fileName]); }); });
}
function writeConfig({
srcTargetPath, depPaths = [], pathMapping = [],
}: {
srcTargetPath: string,
depPaths?: string[],
pathMapping?: Array<{moduleName: string; path: string;}>,
}) {
srcTargetPath = path.resolve(basePath, srcTargetPath);
const compilationTargetSrc = listFilesRecursive(srcTargetPath);
const target = '//' + path.relative(basePath, srcTargetPath);
const files = [...compilationTargetSrc];
depPaths = depPaths.concat([angularCorePath]);
pathMapping = pathMapping.concat([
{moduleName: '@angular/core', path: angularCorePath},
{moduleName: 'angular/packages/core', path: angularCorePath}
]);
for (const depPath of depPaths) {
files.push(...listFilesRecursive(depPath).filter(f => f.endsWith('.d.ts')));
}
const pathMappingObj = {};
for (const mapping of pathMapping) {
pathMappingObj[mapping.moduleName] = [mapping.path];
pathMappingObj[path.posix.join(mapping.moduleName, '*')] =
[path.posix.join(mapping.path, '*')];
}
const emptyTsConfig = ts.readConfigFile(
require.resolve('angular/packages/bazel/test/ngc-wrapped/empty/empty_tsconfig.json'), read);
const tsconfig = createTsConfig({
defaultTsConfig: emptyTsConfig.config,
rootDir: basePath,
target: target,
outDir: bazelBinPath, compilationTargetSrc,
files: files,
pathMapping: pathMappingObj,
});
write(path.resolve(basePath, tsConfigJsonPath), JSON.stringify(tsconfig, null, 2));
return tsconfig;
}
function shouldExist(fileName: string) {
if (!fs.existsSync(path.resolve(basePath, fileName))) {
throw new Error(`Expected ${fileName} to be emitted (basePath: ${basePath})`);
}
}
function shouldNotExist(fileName: string) {
if (fs.existsSync(path.resolve(basePath, fileName))) {
throw new Error(`Did not expect ${fileName} to be emitted (basePath: ${basePath})`);
}
}
function runOneBuildImpl(): boolean { return runOneBuild(['@' + tsConfigJsonPath]); }
}
function makeTempDir(baseDir: string): string {
const id = (Math.random() * 1000000).toFixed(0);
const dir = path.join(baseDir, `tmp.${id}`);
fs.mkdirSync(dir);
return dir;
}
export function listFilesRecursive(dir: string, fileList: string[] = []) {
fs.readdirSync(dir).forEach(file => {
if (fs.statSync(path.join(dir, file)).isDirectory()) {
listFilesRecursive(path.join(dir, file), fileList);
} else {
fileList.push(path.join(dir, file));
}
});
return fileList;
}