@supernovaio/cli/dist/code-analyzer/analyzers/storybook-stories.js

Supernova.io Command Line Interface

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import { readFile } from "node:fs/promises";
import path from "node:path";
import { collectFiles, toRelative, uniqueSorted } from "./helpers.js";
const storiesPattern = "**/*.stories.{ts,tsx,js,jsx,mdx}";
function inferCandidatesFromFile(storyPath) {
    const fileName = path.basename(storyPath);
    const [baseName] = fileName.split(".stories");
    return uniqueSorted([baseName, baseName.replaceAll(/[-_]+(.)/g, (_, c) => c.toUpperCase())]);
}
function inferCandidatesFromMeta(content) {
    const titleMatch = content.match(/title\s*:\s*["']([^"']+)["']/);
    if (!titleMatch?.[1]) {
        return [];
    }
    const parts = titleMatch[1].split("/").filter(Boolean);
    const maybeComponent = parts.at(-1);
    if (!maybeComponent) {
        return [];
    }
    return [maybeComponent];
}
function lineAt(content, index) {
    return content.slice(0, index).split("\n").length;
}
function extractStoryExports(content) {
    const exports = [...content.matchAll(/export\s+(?:const|function)\s+([A-Za-z0-9_]+)/g)].filter(match => match[1] !== "default");
    return exports
        .map((match, index) => {
        const storyName = match[1];
        const start = match.index ?? 0;
        const nextStart = exports[index + 1]?.index;
        const endExclusive = typeof nextStart === "number" ? nextStart : content.length;
        const snippet = content.slice(start, endExclusive).trim();
        return {
            lineEnd: lineAt(content, Math.max(start, endExclusive - 1)),
            lineStart: lineAt(content, start),
            snippet,
            storyName,
        };
    })
        .sort((a, b) => a.storyName.localeCompare(b.storyName));
}
export async function analyzeStorybookStories(projectRoot, components, excludePaths = []) {
    const files = await collectFiles({
        excludePaths,
        pattern: storiesPattern,
        projectRoot,
    });
    const byExportName = new Map(components.map(component => [component.exportName.toLowerCase(), component]));
    const records = {};
    for (const file of files) {
        const content = await readFile(file, "utf8");
        const stories = extractStoryExports(content);
        if (stories.length === 0) {
            continue;
        }
        const relativePath = toRelative(projectRoot, file);
        const candidates = uniqueSorted([...inferCandidatesFromFile(relativePath), ...inferCandidatesFromMeta(content)]);
        for (const candidate of candidates) {
            const component = byExportName.get(candidate.toLowerCase());
            if (!component) {
                continue;
            }
            if (!records[component.componentKey]) {
                records[component.componentKey] = [];
            }
            for (const story of stories) {
                records[component.componentKey].push({
                    lineEnd: story.lineEnd,
                    lineStart: story.lineStart,
                    snippet: story.snippet,
                    storyName: story.storyName,
                    storyPath: relativePath,
                });
            }
        }
    }
    for (const componentKey of Object.keys(records)) {
        records[componentKey] = records[componentKey].sort((a, b) => {
            if (a.storyPath === b.storyPath) {
                return a.lineStart - b.lineStart;
            }
            return a.storyPath.localeCompare(b.storyPath);
        });
    }
    return records;
}
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