248 lines
9.3 KiB
JavaScript
248 lines
9.3 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.lilconfigSync = exports.lilconfig = exports.defaultLoaders = void 0;
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const path = require("path");
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const fs = require("fs");
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const os = require("os");
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const fsReadFileAsync = fs.promises.readFile;
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function getDefaultSearchPlaces(name) {
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return [
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'package.json',
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`.${name}rc.json`,
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`.${name}rc.js`,
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`${name}.config.js`,
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`.${name}rc.cjs`,
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`${name}.config.cjs`,
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];
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}
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function getSearchPaths(startDir, stopDir) {
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return startDir
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.split(path.sep)
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.reduceRight((acc, _, ind, arr) => {
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const currentPath = arr.slice(0, ind + 1).join(path.sep);
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if (!acc.passedStopDir)
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acc.searchPlaces.push(currentPath || path.sep);
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if (currentPath === stopDir)
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acc.passedStopDir = true;
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return acc;
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}, { searchPlaces: [], passedStopDir: false }).searchPlaces;
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}
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exports.defaultLoaders = Object.freeze({
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'.js': require,
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'.json': require,
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'.cjs': require,
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noExt(_, content) {
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return JSON.parse(content);
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},
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});
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function getExtDesc(ext) {
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return ext === 'noExt' ? 'files without extensions' : `extension "${ext}"`;
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}
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function getOptions(name, options = {}) {
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const conf = {
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stopDir: os.homedir(),
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searchPlaces: getDefaultSearchPlaces(name),
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ignoreEmptySearchPlaces: true,
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transform: (x) => x,
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packageProp: [name],
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...options,
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loaders: { ...exports.defaultLoaders, ...options.loaders },
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};
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conf.searchPlaces.forEach(place => {
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const key = path.extname(place) || 'noExt';
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const loader = conf.loaders[key];
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if (!loader) {
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throw new Error(`No loader specified for ${getExtDesc(key)}, so searchPlaces item "${place}" is invalid`);
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}
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if (typeof loader !== 'function') {
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throw new Error(`loader for ${getExtDesc(key)} is not a function (type provided: "${typeof loader}"), so searchPlaces item "${place}" is invalid`);
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}
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});
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return conf;
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}
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function getPackageProp(props, obj) {
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if (typeof props === 'string' && props in obj)
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return obj[props];
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return ((Array.isArray(props) ? props : props.split('.')).reduce((acc, prop) => (acc === undefined ? acc : acc[prop]), obj) || null);
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}
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function getSearchItems(searchPlaces, searchPaths) {
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return searchPaths.reduce((acc, searchPath) => {
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searchPlaces.forEach(fileName => acc.push({
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fileName,
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filepath: path.join(searchPath, fileName),
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loaderKey: path.extname(fileName) || 'noExt',
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}));
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return acc;
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}, []);
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}
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function validateFilePath(filepath) {
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if (!filepath)
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throw new Error('load must pass a non-empty string');
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}
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function validateLoader(loader, ext) {
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if (!loader)
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throw new Error(`No loader specified for extension "${ext}"`);
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if (typeof loader !== 'function')
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throw new Error('loader is not a function');
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}
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function lilconfig(name, options) {
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const { ignoreEmptySearchPlaces, loaders, packageProp, searchPlaces, stopDir, transform, } = getOptions(name, options);
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return {
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async search(searchFrom = process.cwd()) {
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const searchPaths = getSearchPaths(searchFrom, stopDir);
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const result = {
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config: null,
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filepath: '',
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};
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const searchItems = getSearchItems(searchPlaces, searchPaths);
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for (const { fileName, filepath, loaderKey } of searchItems) {
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try {
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await fs.promises.access(filepath);
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}
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catch (_a) {
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continue;
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}
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const content = String(await fsReadFileAsync(filepath));
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const loader = loaders[loaderKey];
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if (fileName === 'package.json') {
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const pkg = await loader(filepath, content);
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const maybeConfig = getPackageProp(packageProp, pkg);
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if (maybeConfig != null) {
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result.config = maybeConfig;
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result.filepath = filepath;
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break;
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}
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continue;
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}
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const isEmpty = content.trim() === '';
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if (isEmpty && ignoreEmptySearchPlaces)
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continue;
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if (isEmpty) {
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result.isEmpty = true;
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result.config = undefined;
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}
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else {
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validateLoader(loader, loaderKey);
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result.config = await loader(filepath, content);
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}
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result.filepath = filepath;
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break;
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}
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if (result.filepath === '' && result.config === null)
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return transform(null);
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return transform(result);
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},
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async load(filepath) {
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validateFilePath(filepath);
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const absPath = path.resolve(process.cwd(), filepath);
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const { base, ext } = path.parse(absPath);
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const loaderKey = ext || 'noExt';
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const loader = loaders[loaderKey];
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validateLoader(loader, loaderKey);
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const content = String(await fsReadFileAsync(absPath));
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if (base === 'package.json') {
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const pkg = await loader(absPath, content);
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return transform({
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config: getPackageProp(packageProp, pkg),
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filepath: absPath,
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});
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}
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const result = {
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config: null,
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filepath: absPath,
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};
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const isEmpty = content.trim() === '';
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if (isEmpty && ignoreEmptySearchPlaces)
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return transform({
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config: undefined,
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filepath: absPath,
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isEmpty: true,
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});
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result.config = isEmpty
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? undefined
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: await loader(absPath, content);
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return transform(isEmpty ? { ...result, isEmpty, config: undefined } : result);
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},
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};
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}
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exports.lilconfig = lilconfig;
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function lilconfigSync(name, options) {
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const { ignoreEmptySearchPlaces, loaders, packageProp, searchPlaces, stopDir, transform, } = getOptions(name, options);
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return {
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search(searchFrom = process.cwd()) {
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const searchPaths = getSearchPaths(searchFrom, stopDir);
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const result = {
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config: null,
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filepath: '',
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};
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const searchItems = getSearchItems(searchPlaces, searchPaths);
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for (const { fileName, filepath, loaderKey } of searchItems) {
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try {
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fs.accessSync(filepath);
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}
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catch (_a) {
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continue;
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}
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const loader = loaders[loaderKey];
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const content = String(fs.readFileSync(filepath));
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if (fileName === 'package.json') {
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const pkg = loader(filepath, content);
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const maybeConfig = getPackageProp(packageProp, pkg);
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if (maybeConfig != null) {
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result.config = maybeConfig;
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result.filepath = filepath;
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break;
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}
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continue;
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}
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const isEmpty = content.trim() === '';
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if (isEmpty && ignoreEmptySearchPlaces)
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continue;
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if (isEmpty) {
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result.isEmpty = true;
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result.config = undefined;
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}
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else {
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validateLoader(loader, loaderKey);
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result.config = loader(filepath, content);
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}
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result.filepath = filepath;
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break;
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}
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if (result.filepath === '' && result.config === null)
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return transform(null);
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return transform(result);
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},
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load(filepath) {
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validateFilePath(filepath);
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const absPath = path.resolve(process.cwd(), filepath);
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const { base, ext } = path.parse(absPath);
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const loaderKey = ext || 'noExt';
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const loader = loaders[loaderKey];
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validateLoader(loader, loaderKey);
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const content = String(fs.readFileSync(absPath));
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if (base === 'package.json') {
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const pkg = loader(absPath, content);
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return transform({
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config: getPackageProp(packageProp, pkg),
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filepath: absPath,
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});
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}
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const result = {
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config: null,
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filepath: absPath,
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};
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const isEmpty = content.trim() === '';
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if (isEmpty && ignoreEmptySearchPlaces)
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return transform({
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filepath: absPath,
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config: undefined,
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isEmpty: true,
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});
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result.config = isEmpty ? undefined : loader(absPath, content);
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return transform(isEmpty ? { ...result, isEmpty, config: undefined } : result);
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},
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};
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}
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exports.lilconfigSync = lilconfigSync;
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