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stories.ts
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stories.ts
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import componentStoryGenerator from '../component-story/component-story';
import componentCypressSpecGenerator from '../component-cypress-spec/component-cypress-spec';
import {
findExportDeclarationsForJsx,
getComponentNode,
} from '../../utils/ast-utils';
import * as ts from 'typescript';
import {
convertNxGenerator,
getProjects,
joinPathFragments,
logger,
ProjectType,
Tree,
visitNotIgnoredFiles,
} from '@nrwl/devkit';
import { join } from 'path';
export interface StorybookStoriesSchema {
project: string;
generateCypressSpecs: boolean;
js?: boolean;
cypressProject?: string;
}
export function projectRootPath(
tree: Tree,
sourceRoot: string,
projectType: ProjectType
): string {
let projectDir = '';
if (projectType === 'application') {
// apps/test-app/src/app
projectDir = 'app';
} else if (projectType == 'library') {
// libs/test-lib/src/lib
projectDir = 'lib';
}
return joinPathFragments(sourceRoot, projectDir);
}
export function containsComponentDeclaration(
tree: Tree,
componentPath: string
): boolean {
const contents = tree.read(componentPath, 'utf-8');
if (contents === null) {
throw new Error(`Failed to read ${componentPath}`);
}
const sourceFile = ts.createSourceFile(
componentPath,
contents,
ts.ScriptTarget.Latest,
true
);
return !!(
getComponentNode(sourceFile) ||
findExportDeclarationsForJsx(sourceFile)?.length
);
}
export async function createAllStories(
tree: Tree,
projectName: string,
generateCypressSpecs: boolean,
js: boolean,
cypressProject?: string
) {
const projects = getProjects(tree);
const project = projects.get(projectName);
const { sourceRoot, projectType } = project;
const projectPath = projectRootPath(tree, sourceRoot, projectType);
let componentPaths: string[] = [];
visitNotIgnoredFiles(tree, projectPath, (path) => {
if (
(path.endsWith('.tsx') && !path.endsWith('.spec.tsx')) ||
(path.endsWith('.js') && !path.endsWith('.spec.js')) ||
(path.endsWith('.jsx') && !path.endsWith('.spec.jsx'))
) {
const ext = path.slice(path.lastIndexOf('.'));
const storyPath = `${path.split(ext)[0]}.stories${ext}`;
// only add component if a stories file doesnt already exist
if (!tree.exists(storyPath)) {
componentPaths.push(path);
}
}
});
const e2eProjectName = cypressProject || `${projectName}-e2e`;
const e2eProject = projects.get(e2eProjectName);
if (generateCypressSpecs && !e2eProject) {
logger.info(
`There was no e2e project "${e2eProjectName}" found, so cypress specs will not be generated. Pass "--cypressProject" to specify a different e2e project name`
);
}
await Promise.all(
componentPaths.map(async (componentPath) => {
const relativeCmpDir = componentPath.replace(join(sourceRoot, '/'), '');
if (!containsComponentDeclaration(tree, componentPath)) {
return;
}
await componentStoryGenerator(tree, {
componentPath: relativeCmpDir,
project: projectName,
});
if (generateCypressSpecs && e2eProject) {
await componentCypressSpecGenerator(tree, {
project: projectName,
componentPath: relativeCmpDir,
js,
cypressProject,
});
}
})
);
}
export async function storiesGenerator(
host: Tree,
schema: StorybookStoriesSchema
) {
await createAllStories(
host,
schema.project,
schema.generateCypressSpecs,
schema.js,
schema.cypressProject
);
}
export default storiesGenerator;
export const storiesSchematic = convertNxGenerator(storiesGenerator);