121 lines
4.3 KiB
JavaScript
121 lines
4.3 KiB
JavaScript
/**
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* @fileoverview Utility functions for React and Flow version configuration
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* @author Yannick Croissant
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*/
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'use strict';
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const resolve = require('resolve');
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const error = require('./error');
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let warnedForMissingVersion = false;
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function resetWarningFlag() {
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warnedForMissingVersion = false;
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}
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function detectReactVersion() {
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try {
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const reactPath = resolve.sync('react', {basedir: process.cwd()});
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const react = require(reactPath); // eslint-disable-line global-require, import/no-dynamic-require
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return react.version;
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} catch (e) {
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if (e.code === 'MODULE_NOT_FOUND') {
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if (!warnedForMissingVersion) {
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error('Warning: React version was set to "detect" in eslint-plugin-react settings, ' +
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'but the "react" package is not installed. Assuming latest React version for linting.');
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warnedForMissingVersion = true;
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}
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return '999.999.999';
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}
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throw e;
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}
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}
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function getReactVersionFromContext(context) {
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let confVer = '999.999.999';
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// .eslintrc shared settings (http://eslint.org/docs/user-guide/configuring#adding-shared-settings)
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if (context.settings && context.settings.react && context.settings.react.version) {
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let settingsVersion = context.settings.react.version;
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if (settingsVersion === 'detect') {
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settingsVersion = detectReactVersion();
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}
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if (typeof settingsVersion !== 'string') {
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error('Warning: React version specified in eslint-plugin-react-settings must be a string; ' +
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`got “${typeof settingsVersion}”`);
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}
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confVer = String(settingsVersion);
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} else if (!warnedForMissingVersion) {
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error('Warning: React version not specified in eslint-plugin-react settings. ' +
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'See https://github.com/yannickcr/eslint-plugin-react#configuration .');
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warnedForMissingVersion = true;
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}
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confVer = /^[0-9]+\.[0-9]+$/.test(confVer) ? `${confVer}.0` : confVer;
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return confVer.split('.').map(part => Number(part));
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}
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function detectFlowVersion() {
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try {
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const flowPackageJsonPath = resolve.sync('flow-bin/package.json', {basedir: process.cwd()});
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const flowPackageJson = require(flowPackageJsonPath); // eslint-disable-line global-require, import/no-dynamic-require
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return flowPackageJson.version;
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} catch (e) {
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if (e.code === 'MODULE_NOT_FOUND') {
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error('Warning: Flow version was set to "detect" in eslint-plugin-react settings, ' +
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'but the "flow-bin" package is not installed. Assuming latest Flow version for linting.');
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return '999.999.999';
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}
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throw e;
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}
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}
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function getFlowVersionFromContext(context) {
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let confVer = '999.999.999';
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// .eslintrc shared settings (http://eslint.org/docs/user-guide/configuring#adding-shared-settings)
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if (context.settings.react && context.settings.react.flowVersion) {
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let flowVersion = context.settings.react.flowVersion;
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if (flowVersion === 'detect') {
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flowVersion = detectFlowVersion();
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}
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if (typeof flowVersion !== 'string') {
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error('Warning: Flow version specified in eslint-plugin-react-settings must be a string; ' +
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`got “${typeof flowVersion}”`);
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}
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confVer = String(flowVersion);
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} else {
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throw 'Could not retrieve flowVersion from settings'; // eslint-disable-line no-throw-literal
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}
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confVer = /^[0-9]+\.[0-9]+$/.test(confVer) ? `${confVer}.0` : confVer;
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return confVer.split('.').map(part => Number(part));
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}
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function normalizeParts(parts) {
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return Array.from({length: 3}, (_, i) => (parts[i] || 0));
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}
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function test(context, methodVer, confVer) {
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const methodVers = normalizeParts(String(methodVer || '').split('.').map(part => Number(part)));
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const confVers = normalizeParts(confVer);
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const higherMajor = methodVers[0] < confVers[0];
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const higherMinor = methodVers[0] === confVers[0] && methodVers[1] < confVers[1];
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const higherOrEqualPatch = methodVers[0] === confVers[0] &&
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methodVers[1] === confVers[1] &&
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methodVers[2] <= confVers[2];
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return higherMajor || higherMinor || higherOrEqualPatch;
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}
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function testReactVersion(context, methodVer) {
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return test(context, methodVer, getReactVersionFromContext(context));
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}
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function testFlowVersion(context, methodVer) {
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return test(context, methodVer, getFlowVersionFromContext(context));
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}
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module.exports = {
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testReactVersion,
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testFlowVersion,
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resetWarningFlag
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};
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