next/dist/esm/lib/resolve-build-paths.js

The React Framework

import { promisify } from 'util';
import globOriginal from 'next/dist/compiled/glob';
import * as Log from '../build/output/log';
import path from 'path';
import fs from 'fs';
import isError from './is-error';
const glob = promisify(globOriginal);
/**
 * Escapes Next.js dynamic route bracket expressions so glob treats them as
 * literal directory names rather than character classes.
 *
 * e.g., "app/blog/[slug]/** /page.tsx" → "app/blog/\[slug\]/** /page.tsx"
 */ function escapeBrackets(pattern) {
    // Match Next.js dynamic route patterns: [name], [...name], [[...name]]
    return pattern.replace(/\[\[?\.\.\.[^\]]+\]?\]|\[[^\]]+\]/g, (match)=>match.replace(/\[/g, '\\[').replace(/\]/g, '\\]'));
}
/**
 * Resolves glob patterns and explicit paths to actual file paths.
 * Categorizes them into App Router and Pages Router paths.
 *
 * Supports negation patterns prefixed with "!" to exclude paths.
 * e.g., "app/**,!app/[lang]/page.js" includes all App Router paths except
 * app/[lang]/page.js
 */ export async function resolveBuildPaths(patterns, projectDir) {
    const appPaths = new Set();
    const pagePaths = new Set();
    const includePatterns = [];
    const excludePatterns = [];
    for (const pattern of patterns){
        const trimmed = pattern.trim();
        if (!trimmed) continue;
        if (trimmed.startsWith('!')) {
            excludePatterns.push(escapeBrackets(trimmed.slice(1)));
        } else {
            includePatterns.push(escapeBrackets(trimmed));
        }
    }
    // Default to matching all files when only negation patterns are provided.
    if (includePatterns.length === 0 && excludePatterns.length > 0) {
        includePatterns.push('**');
    }
    // Combine patterns using brace expansion: {pattern1,pattern2}
    const combinedPattern = includePatterns.length === 1 ? includePatterns[0] : `{${includePatterns.join(',')}}`;
    try {
        const matches = await glob(combinedPattern, {
            cwd: projectDir,
            ignore: excludePatterns
        });
        if (matches.length === 0) {
            Log.warn(`Pattern "${patterns.join(',')}" did not match any files`);
        }
        for (const file of matches){
            if (!fs.statSync(path.join(projectDir, file)).isDirectory()) {
                categorizeAndAddPath(file, appPaths, pagePaths);
            }
        }
    } catch (error) {
        throw Object.defineProperty(new Error(`Failed to resolve pattern "${patterns.join(',')}": ${isError(error) ? error.message : String(error)}`), "__NEXT_ERROR_CODE", {
            value: "E972",
            enumerable: false,
            configurable: true
        });
    }
    return {
        appPaths: Array.from(appPaths).sort(),
        pagePaths: Array.from(pagePaths).sort()
    };
}
/**
 * Categorizes a file path to either app or pages router based on its prefix.
 * For app router, only route-defining files (page.*, route.*) are included.
 *
 * Examples:
 * - "app/page.tsx" → appPaths.add("/page.tsx")
 * - "app/layout.tsx" → skipped (not a route file)
 * - "pages/index.tsx" → pagePaths.add("/index.tsx")
 */ function categorizeAndAddPath(filePath, appPaths, pagePaths) {
    const normalized = filePath.replace(/\\/g, '/');
    if (normalized.startsWith('app/')) {
        // Only include route-defining files (page.* or route.*)
        if (/\/(page|route)\.[^/]+$/.test(normalized)) {
            appPaths.add('/' + normalized.slice(4));
        }
    } else if (normalized.startsWith('pages/')) {
        pagePaths.add('/' + normalized.slice(6));
    }
}
/**
 * Parse build paths from comma-separated format
 * Supports:
 * - Comma-separated values: "app/page.tsx,app/about/page.tsx"
 *
 * @param input - String input to parse
 * @returns Array of path patterns
 */ export function parseBuildPathsInput(input) {
    // Comma-separated values
    return input.split(',').map((p)=>p.trim()).filter((p)=>p.length > 0);
}

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