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import path from 'path';
import { logger } from './core/runtime/AvenxLogger.js';
import { setDebugReactivity } from './core/reactive/watcher.js';
/**
* Find the project root directory by scanning upwards from startDir.
* Looks for package.json or index.html.
* @param {string} startDir
* @returns {string}
*/
function findProjectRoot(startDir = process.cwd()) {
let currentDir = startDir;
while (true) {
const packageJsonPath = path.join(currentDir, 'package.json');
const indexHtmlPath = path.join(currentDir, 'index.html');
if (fs.existsSync(packageJsonPath)) {
try {
const pkg = JSON.parse(fs.readFileSync(packageJsonPath, 'utf8'));
if (pkg && (pkg.name !== 'avenx-core' || process.env.NODE_ENV === 'test')) {
return currentDir;
}
} catch {
return currentDir;
}
} else if (fs.existsSync(indexHtmlPath)) {
return currentDir;
}
const parentDir = path.dirname(currentDir);
if (parentDir === currentDir) {
break;
}
currentDir = parentDir;
}
return startDir;
}
/**
* Computes the Levenshtein distance between two strings.
* @param {string} a
* @param {string} b
* @returns {number}
*/
export function levenshtein(a, b) {
const tmp = [];
let i, j;
for (i = 0; i <= a.length; i++) {
tmp.push([i]);
}
for (j = 0; j <= b.length; j++) {
tmp[0][j] = j;
}
for (i = 1; i <= a.length; i++) {
for (j = 1; j <= b.length; j++) {
tmp[i][j] = Math.min(
tmp[i - 1][j] + 1,
tmp[i][j - 1] + 1,
tmp[i - 1][j - 1] + (a[i - 1] === b[j - 1] ? 0 : 1)
);
}
}
return tmp[a.length][b.length];
}
/**
* Returns the closest match from allowedKeys based on Levenshtein distance,
* if it is within a threshold.
* @param {string} key
* @param {string[]} allowedKeys
* @returns {string|null}
*/
export function getClosestKey(key, allowedKeys) {
let closest = null;
let minDistance = Infinity;
for (const allowed of allowedKeys) {
const dist = levenshtein(key.toLowerCase(), allowed.toLowerCase());
if (dist < minDistance) {
minDistance = dist;
closest = allowed;
}
}
if (minDistance <= 3) {
return closest;
}
return null;
}
/**
* The configuration keys avenx.config.json accepts.
*
* Exported so that every consumer validates against one list. `avenx doctor`
* kept a second copy and drifted from this one, reporting valid options as
* unrecognised.
* @type {{topLevel: string[], server: string[], style: string[], debug: string[], logging: string[], hooks: string[], trace: string[], rewind: string[]}}
*/
export const CONFIG_SCHEMA = {
topLevel: [
'srcDir',
'distDir',
'templatesDir',
'mode',
'server',
'style',
'debug',
'outputName',
'logging',
'voidTags',
'templateGlobals',
'warnings',
'treeShakeComponents',
'preprocessors',
'alias',
'hooks',
'trace',
'rewind',
'expressionCacheCapacity',
'sourceMap',
'sourcesContent',
],
server: ['port', 'host', 'liveReload', 'headers'],
style: ['preprocessor', 'sourceMap', 'inlineSourceMap', 'dev'],
debug: ['debugReactivity'],
trace: ['redact', 'maxNodes'],
rewind: ['onConflict', 'maxSnapshotItems'],
logging: ['level', 'silent'],
hooks: ['prebuild', 'postbuild'],
};
/**
* Recursively traverses string values in an object/array/value and replaces
* $VAR_NAME or ${VAR_NAME} placeholders with process.env.VAR_NAME values.
* @param {*} val
* @returns {*}
*/
export function interpolateEnv(val) {
if (typeof val === 'string') {
return val.replace(/\$\{?([A-Z0-9_]+)\}?/gi, (_, key) => (process.env[key] !== undefined ? process.env[key] : ''));
}
if (Array.isArray(val)) {
return val.map(interpolateEnv);
}
if (val && typeof val === 'object') {
const result = {};
for (const [k, v] of Object.entries(val)) {
result[k] = interpolateEnv(v);
}
return result;
}
return val;
}
/**
* Load the Avenx configuration from avenx.config.json file.
* @param {string} [baseDir] - The base directory of the project.
*/
function loadConfig(baseDir) {
const defaults = {
srcDir: 'src',
distDir: 'dist',
templatesDir: '.avenxtemplates',
alias: {},
hooks: {},
expressionCacheCapacity: 1000,
server: {
port: 3000,
host: 'localhost',
liveReload: true,
headers: {},
},
style: {
preprocessor: 'none',
},
debug: {
debugReactivity: false,
},
voidTags: [],
templateGlobals: [],
warnings: {},
preprocessors: {},
trace: {
redact: [],
maxNodes: 0,
},
rewind: {
onConflict: 'safe',
maxSnapshotItems: 10000,
},
};
const rootDir = baseDir || findProjectRoot(process.cwd());
const configPath = path.join(rootDir, 'avenx.config.json');
if (!fs.existsSync(configPath)) {
setDebugReactivity(defaults.debug.debugReactivity);
return defaults;
}
try {
const userConfigRaw = JSON.parse(fs.readFileSync(configPath, 'utf8'));
const userConfig = interpolateEnv(userConfigRaw);
// templateGlobals holds identifier names, not values, and JavaScript
// identifiers may start with `$` — which env interpolation would read as a
// placeholder and blank out, making a name like `$i18n` impossible to
// declare. Nothing in this option could ever want to be an environment
// reference, so it is taken verbatim from the file.
if (userConfigRaw && Array.isArray(userConfigRaw.templateGlobals)) {
userConfig.templateGlobals = userConfigRaw.templateGlobals;
}
if (userConfig && typeof userConfig === 'object' && !Array.isArray(userConfig)) {
if (
userConfig.server &&
typeof userConfig.server.port === 'string' &&
/^\d+$/.test(userConfig.server.port) &&
typeof userConfigRaw.server?.port === 'string' &&
userConfigRaw.server.port.includes('$')
) {
userConfig.server.port = Number(userConfig.server.port);
}
const allowedTopLevel = CONFIG_SCHEMA.topLevel;
for (const key of Object.keys(userConfig)) {
if (!allowedTopLevel.includes(key)) {
const closest = getClosestKey(key, allowedTopLevel);
const suggestion = closest ? `. Did you mean "${closest}"?` : '.';
logger.warn(`Unknown configuration option "${key}" in avenx.config.json${suggestion} Supported top-level options are: ${allowedTopLevel.join(', ')}.`);
} else {
if (key === 'server' && userConfig.server && typeof userConfig.server === 'object' && !Array.isArray(userConfig.server)) {
const allowedServerKeys = CONFIG_SCHEMA.server;
for (const subKey of Object.keys(userConfig.server)) {
if (!allowedServerKeys.includes(subKey)) {
const closest = getClosestKey(subKey, allowedServerKeys);
const suggestion = closest ? `. Did you mean "server.${closest}"?` : '.';
logger.warn(`Unknown configuration option "server.${subKey}" in avenx.config.json${suggestion} Supported options for "server" are: ${allowedServerKeys.join(', ')}.`);
}
}
}
if (key === 'style' && userConfig.style && typeof userConfig.style === 'object' && !Array.isArray(userConfig.style)) {
const allowedStyleKeys = CONFIG_SCHEMA.style;
for (const subKey of Object.keys(userConfig.style)) {
if (!allowedStyleKeys.includes(subKey)) {
const closest = getClosestKey(subKey, allowedStyleKeys);
const suggestion = closest ? `. Did you mean "style.${closest}"?` : '.';
logger.warn(`Unknown configuration option "style.${subKey}" in avenx.config.json${suggestion} Supported options for "style" are: ${allowedStyleKeys.join(', ')}.`);
}
}
}
if (key === 'trace' && userConfig.trace && typeof userConfig.trace === 'object' && !Array.isArray(userConfig.trace)) {
const allowedTraceKeys = CONFIG_SCHEMA.trace;
for (const subKey of Object.keys(userConfig.trace)) {
if (!allowedTraceKeys.includes(subKey)) {
const closest = getClosestKey(subKey, allowedTraceKeys);
const suggestion = closest ? `. Did you mean "trace.${closest}"?` : '.';
logger.warn(`Unknown configuration option "trace.${subKey}" in avenx.config.json${suggestion} Supported options for "trace" are: ${allowedTraceKeys.join(', ')}.`);
}
}
if (userConfig.trace.redact !== undefined && !Array.isArray(userConfig.trace.redact)) {
logger.warn('Configuration option "trace.redact" must be an array of property-path patterns. Ignoring it.');
delete userConfig.trace.redact;
}
}
if (key === 'rewind' && userConfig.rewind && typeof userConfig.rewind === 'object' && !Array.isArray(userConfig.rewind)) {
const allowedRewindKeys = CONFIG_SCHEMA.rewind;
for (const subKey of Object.keys(userConfig.rewind)) {
if (!allowedRewindKeys.includes(subKey)) {
const closest = getClosestKey(subKey, allowedRewindKeys);
const suggestion = closest ? `. Did you mean "rewind.${closest}"?` : '.';
logger.warn(`Unknown configuration option "rewind.${subKey}" in avenx.config.json${suggestion} Supported options for "rewind" are: ${allowedRewindKeys.join(', ')}.`);
}
}
}
if (key === 'debug' && userConfig.debug && typeof userConfig.debug === 'object' && !Array.isArray(userConfig.debug)) {
const allowedDebugKeys = CONFIG_SCHEMA.debug;
for (const subKey of Object.keys(userConfig.debug)) {
if (!allowedDebugKeys.includes(subKey)) {
const closest = getClosestKey(subKey, allowedDebugKeys);
const suggestion = closest ? `. Did you mean "debug.${closest}"?` : '.';
logger.warn(`Unknown configuration option "debug.${subKey}" in avenx.config.json${suggestion} Supported options for "debug" are: ${allowedDebugKeys.join(', ')}.`);
}
}
}
if (key === 'logging' && userConfig.logging && typeof userConfig.logging === 'object' && !Array.isArray(userConfig.logging)) {
const allowedLoggingKeys = CONFIG_SCHEMA.logging;
for (const subKey of Object.keys(userConfig.logging)) {
if (!allowedLoggingKeys.includes(subKey)) {
const closest = getClosestKey(subKey, allowedLoggingKeys);
const suggestion = closest ? `. Did you mean "logging.${closest}"?` : '.';
logger.warn(`Unknown configuration option "logging.${subKey}" in avenx.config.json${suggestion} Supported options for "logging" are: ${allowedLoggingKeys.join(', ')}.`);
}
}
}
if (key === 'hooks' && userConfig.hooks && typeof userConfig.hooks === 'object' && !Array.isArray(userConfig.hooks)) {
const allowedHooksKeys = CONFIG_SCHEMA.hooks;
for (const subKey of Object.keys(userConfig.hooks)) {
if (!allowedHooksKeys.includes(subKey)) {
const closest = getClosestKey(subKey, allowedHooksKeys);
const suggestion = closest ? `. Did you mean "hooks.${closest}"?` : '.';
logger.warn(`Unknown configuration option "hooks.${subKey}" in avenx.config.json${suggestion} Supported options for "hooks" are: ${allowedHooksKeys.join(', ')}.`);
}
}
}
}
}
}
if (userConfig.warnings !== undefined) {
if (typeof userConfig.warnings !== 'object' || userConfig.warnings === null || Array.isArray(userConfig.warnings)) {
throw new Error('warnings must be an object');
}
}
if (userConfig.alias !== undefined) {
if (typeof userConfig.alias !== 'object' || userConfig.alias === null || Array.isArray(userConfig.alias)) {
throw new Error('alias must be an object');
}
}
if (userConfig.hooks !== undefined) {
if (typeof userConfig.hooks !== 'object' || userConfig.hooks === null || Array.isArray(userConfig.hooks)) {
throw new Error('hooks must be an object');
}
if (userConfig.hooks.prebuild !== undefined && typeof userConfig.hooks.prebuild !== 'string') {
throw new Error('hooks.prebuild must be a string');
}
if (userConfig.hooks.postbuild !== undefined && typeof userConfig.hooks.postbuild !== 'string') {
throw new Error('hooks.postbuild must be a string');
}
}
if (userConfig.preprocessors !== undefined) {
if (
(typeof userConfig.preprocessors !== 'object' || userConfig.preprocessors === null || Array.isArray(userConfig.preprocessors)) &&
typeof userConfig.preprocessors !== 'function'
) {
throw new Error('preprocessors must be an object or function');
}
}
let preprocessors = defaults.preprocessors;
if (typeof userConfig.preprocessors === 'function') {
preprocessors = userConfig.preprocessors;
} else if (userConfig.preprocessors) {
preprocessors = { ...defaults.preprocessors, ...userConfig.preprocessors };
}
const config = {
...defaults,
...userConfig,
server: {
...defaults.server,
...(userConfig.server || {}),
},
style: {
...defaults.style,
...(userConfig.style || {}),
},
debug: {
...defaults.debug,
...(userConfig.debug || {}),
},
warnings: {
...defaults.warnings,
...(userConfig.warnings || {}),
},
hooks: {
...defaults.hooks,
...(userConfig.hooks || {}),
},
rewind: {
...defaults.rewind,
...(userConfig.rewind || {}),
},
preprocessors,
};
if (typeof config.debug.debugReactivity !== 'boolean') {
throw new Error('debug.debugReactivity must be a boolean');
}
setDebugReactivity(config.debug.debugReactivity);
if (typeof config.srcDir !== 'string' || config.srcDir.trim() === '') {
throw new Error('srcDir must be a non-empty string');
}
if (path.isAbsolute(config.srcDir)) {
throw new Error('srcDir must be a relative path');
}
if (typeof config.distDir !== 'string' || config.distDir.trim() === '') {
throw new Error('distDir must be a non-empty string');
}
if (path.isAbsolute(config.distDir)) {
throw new Error('distDir must be a relative path');
}
if (typeof config.templatesDir !== 'string' || config.templatesDir.trim() === '') {
throw new Error('templatesDir must be a non-empty string');
}
if (path.isAbsolute(config.templatesDir)) {
throw new Error('templatesDir must be a relative path');
}
if (!Array.isArray(config.voidTags) || config.voidTags.some((tag) => typeof tag !== 'string' || tag.trim() === '')) {
throw new Error('voidTags must be an array of non-empty strings');
}
// Identifiers a plugin publishes into every component's template scope —
// `app.mixin()` members, most often. Template validation has no way to see
// those: they are contributed at runtime, by code the compiler never reads.
// Declaring them here is how a project says "this name is provided", so a
// template using it is checked rather than either warned about wrongly or
// exempted by switching the whole check off.
if (
!Array.isArray(config.templateGlobals) ||
config.templateGlobals.some((name) => typeof name !== 'string' || name.trim() === '')
) {
throw new Error('templateGlobals must be an array of non-empty identifier names');
}
const allowedSeverities = ['off', 'ignore', 'warn', 'warning', 'error'];
for (const [code, severity] of Object.entries(config.warnings)) {
if (typeof severity !== 'string') {
throw new Error(`warnings.${code} must be a string severity ("off", "ignore", "warn", "warning", "error")`);
}
const normSeverity = severity.trim().toLowerCase();
if (!allowedSeverities.includes(normSeverity)) {
throw new Error(`Invalid severity "${severity}" for warning "${code}". Allowed values: "off", "ignore", "warn", "warning", "error"`);
}
}
const allowedConflictPolicies = ['safe', 'force', 'abort'];
if (!allowedConflictPolicies.includes(config.rewind.onConflict)) {
throw new Error(
`Invalid rewind.onConflict "${config.rewind.onConflict}". Allowed values: ${allowedConflictPolicies.map((p) => `"${p}"`).join(', ')}`,
);
}
if (
typeof config.rewind.maxSnapshotItems !== 'number' ||
!Number.isInteger(config.rewind.maxSnapshotItems) ||
config.rewind.maxSnapshotItems <= 0
) {
throw new Error('rewind.maxSnapshotItems must be a positive integer');
}
if (typeof config.server.port !== 'number' || config.server.port < 0 || config.server.port > 65535) {
throw new Error('server.port must be a valid port number (0-65535)');
}
if (typeof config.server.host !== 'string' || config.server.host.trim() === '') {
throw new Error('server.host must be a non-empty string');
}
if (typeof config.server.liveReload !== 'boolean') {
throw new Error('server.liveReload must be a boolean');
}
if (
typeof config.server.headers !== 'object' ||
config.server.headers === null ||
Array.isArray(config.server.headers)
) {
throw new Error('server.headers must be an object');
}
if (
config.expressionCacheCapacity !== undefined &&
(typeof config.expressionCacheCapacity !== 'number' ||
config.expressionCacheCapacity <= 0 ||
!Number.isInteger(config.expressionCacheCapacity))
) {
throw new Error('expressionCacheCapacity must be a positive integer');
}
return config;
} catch (err) {
logger.error(`Invalid avenx.config.json: ${err.message}`);
if (process.env.NODE_ENV === 'test') {
throw err;
}
process.exit(1);
}
}
loadConfig.findProjectRoot = findProjectRoot;
loadConfig.interpolateEnv = interpolateEnv;
export default loadConfig;
/**
* Resolves a path alias (e.g., "@/components/Header") to its absolute or root-relative path.
* @param {string} importPath - The import string to resolve.
* @param {object} [config] - The parsed Avenx config object.
* @param {string} [rootDir] - The root project directory.
* @returns {string} The resolved file path or original string if no alias matched.
*/
export function resolvePathAlias(importPath, config = {}, rootDir = process.cwd()) {
if (!importPath || typeof importPath !== 'string') return importPath;
const safeConfig = config || {};
const aliases = safeConfig.alias || {};
for (const [alias, target] of Object.entries(aliases)) {
if (importPath === alias || importPath.startsWith(alias + '/')) {
const relativePart = importPath.slice(alias.length);
const targetPath = path.isAbsolute(target) ? target : path.join(rootDir, target);
return path.normalize(path.join(targetPath, relativePart));
}
}
return importPath;
} |