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framework-preset-angular-cli.ts
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framework-preset-angular-cli.ts
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import webpack from 'webpack';
import { logger } from '@storybook/node-logger';
import { targetFromTargetString, BuilderContext } from '@angular-devkit/architect';
import { sync as findUpSync } from 'find-up';
import semver from '@storybook/semver';
import { logging, JsonObject } from '@angular-devkit/core';
import { moduleIsAvailable } from './utils/module-is-available';
import { getWebpackConfig as getWebpackConfig12_2_x } from './angular-cli-webpack-12.2.x';
import { getWebpackConfig as getWebpackConfig13_x_x } from './angular-cli-webpack-13.x.x';
import { getWebpackConfig as getWebpackConfigOlder } from './angular-cli-webpack-older';
import { PresetOptions } from './options';
export async function webpackFinal(baseConfig: webpack.Configuration, options: PresetOptions) {
if (!moduleIsAvailable('@angular-devkit/build-angular')) {
logger.info('=> Using base config because "@angular-devkit/build-angular" is not installed');
return baseConfig;
}
const packageJson = await import(findUpSync('package.json', { cwd: options.configDir }));
const angularCliVersion = semver.coerce(packageJson.devDependencies['@angular/cli'])?.version;
/**
* Ordered array to use the specific getWebpackConfig according to some condition like angular-cli version
*/
const webpackGetterByVersions: {
info: string;
condition: boolean;
getWebpackConfig(
baseConfig: webpack.Configuration,
options: PresetOptions
): Promise<webpack.Configuration> | webpack.Configuration;
}[] = [
{
info: '=> Loading angular-cli config for angular >= 13.0.0',
condition: semver.satisfies(angularCliVersion, '>=13.0.0'),
getWebpackConfig: async (_baseConfig, _options) => {
const builderContext = getBuilderContext(_options);
const builderOptions = await getBuilderOptions(_options, builderContext);
return getWebpackConfig13_x_x(_baseConfig, {
builderOptions,
builderContext,
});
},
},
{
info: '=> Loading angular-cli config for angular 12.2.x',
condition: semver.satisfies(angularCliVersion, '12.2.x') && options.angularBuilderContext,
getWebpackConfig: async (_baseConfig, _options) => {
const builderContext = getBuilderContext(_options);
const builderOptions = await getBuilderOptions(_options, builderContext);
return getWebpackConfig12_2_x(_baseConfig, {
builderOptions,
builderContext,
});
},
},
{
info: '=> Loading angular-cli config for angular lower than 12.2.0',
condition: true,
getWebpackConfig: getWebpackConfigOlder,
},
];
const webpackGetter = webpackGetterByVersions.find((wg) => wg.condition);
logger.info(webpackGetter.info);
return Promise.resolve(webpackGetter.getWebpackConfig(baseConfig, options));
}
/**
* Get Builder Context
* If storybook is not start by angular builder create dumb BuilderContext
*/
function getBuilderContext(options: PresetOptions): BuilderContext {
return (
options.angularBuilderContext ??
(({
target: { project: 'noop-project', builder: '', options: {} },
workspaceRoot: process.cwd(),
getProjectMetadata: () => ({}),
getTargetOptions: () => ({}),
logger: new logging.Logger('Storybook'),
} as unknown) as BuilderContext)
);
}
/**
* Get builder options
* Merge target options from browser target and from storybook options
*/
async function getBuilderOptions(
options: PresetOptions,
builderContext: BuilderContext
): Promise<JsonObject> {
/**
* Get Browser Target options
*/
let browserTargetOptions: JsonObject = {};
if (options.angularBrowserTarget) {
const browserTarget = targetFromTargetString(options.angularBrowserTarget);
logger.info(
`=> Using angular browser target options from "${browserTarget.project}:${
browserTarget.target
}${browserTarget.configuration ? `:${browserTarget.configuration}` : ''}"`
);
browserTargetOptions = await builderContext.getTargetOptions(browserTarget);
}
/**
* Merge target options from browser target options and from storybook options
*/
const builderOptions = {
...browserTargetOptions,
...(options.angularBuilderOptions as JsonObject),
tsConfig:
options.tsConfig ??
findUpSync('tsconfig.json', { cwd: options.configDir }) ??
browserTargetOptions.tsConfig,
};
logger.info(`=> Using angular project with "tsConfig:${builderOptions.tsConfig}"`);
return builderOptions;
}