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JavaScript
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2020-05-19 11:43:42 +03:00
'use strict';
const _ = require('lodash');
const assignDisabledRanges = require('./assignDisabledRanges');
const getOsEol = require('./utils/getOsEol');
const path = require('path');
const reportUnknownRuleNames = require('./reportUnknownRuleNames');
const requireRule = require('./requireRule');
const rulesOrder = require('./rules');
/** @typedef {import('stylelint').StylelintInternalApi} StylelintInternalApi */
/** @typedef {import('stylelint').PostcssResult} PostcssResult */
/** @typedef {import('stylelint').StylelintPostcssResult} StylelintPostcssResult */
/** @typedef {import('stylelint').GetLintSourceOptions} Options */
/**
* Run stylelint on a PostCSS Result, either one that is provided
* or one that we create
* @param {StylelintInternalApi} stylelint
* @param {Options} options
* @returns {Promise<PostcssResult>}
*/
module.exports = function lintSource(stylelint, options = {}) {
if (!options.filePath && options.code === undefined && !options.existingPostcssResult) {
return Promise.reject(new Error('You must provide filePath, code, or existingPostcssResult'));
}
const isCodeNotFile = options.code !== undefined;
const inputFilePath = isCodeNotFile ? options.codeFilename : options.filePath;
if (inputFilePath !== undefined && !path.isAbsolute(inputFilePath)) {
if (isCodeNotFile) {
return Promise.reject(new Error('codeFilename must be an absolute path'));
}
return Promise.reject(new Error('filePath must be an absolute path'));
}
const getIsIgnored = stylelint.isPathIgnored(inputFilePath).catch((err) => {
if (isCodeNotFile && err.code === 'ENOENT') return false;
throw err;
});
return getIsIgnored.then((isIgnored) => {
if (isIgnored) {
const postcssResult =
options.existingPostcssResult || createEmptyPostcssResult(inputFilePath);
postcssResult.stylelint = postcssResult.stylelint || {};
postcssResult.stylelint.ignored = true;
postcssResult.standaloneIgnored = true; // TODO: remove need for this
return postcssResult;
}
const configSearchPath = stylelint._options.configFile || inputFilePath;
const getConfig = stylelint.getConfigForFile(configSearchPath).catch((err) => {
if (isCodeNotFile && err.code === 'ENOENT') return stylelint.getConfigForFile(process.cwd());
throw err;
});
return getConfig.then((result) => {
// TODO TYPES possible null
const config =
/** @type {{ config: import('stylelint').StylelintConfig, filepath: string }} */ (result).config;
const existingPostcssResult = options.existingPostcssResult;
const stylelintResult = {
ruleSeverities: {},
customMessages: {},
disabledRanges: {},
};
if (existingPostcssResult) {
return lintPostcssResult(
stylelint,
Object.assign(existingPostcssResult, { stylelint: stylelintResult }),
config,
).then(() => existingPostcssResult);
}
return stylelint
._getPostcssResult({
code: options.code,
codeFilename: options.codeFilename,
filePath: inputFilePath,
codeProcessors: config.codeProcessors,
})
.then((postcssResult) => {
return lintPostcssResult(
stylelint,
Object.assign(postcssResult, { stylelint: stylelintResult }),
config,
).then(() => postcssResult);
});
});
});
};
/**
* @param {StylelintInternalApi} stylelint
* @param {PostcssResult} postcssResult
* @param {import('stylelint').StylelintConfig} config
* @returns {Promise<any>}
*/
function lintPostcssResult(stylelint, postcssResult, config) {
postcssResult.stylelint.ruleSeverities = {};
postcssResult.stylelint.customMessages = {};
postcssResult.stylelint.stylelintError = false;
postcssResult.stylelint.quiet = config.quiet;
/** @type {string} */
let newline;
const postcssDoc = postcssResult.root;
if (postcssDoc) {
// @ts-ignore TODO TYPES property css does not exists
const newlineMatch = postcssDoc.source && postcssDoc.source.input.css.match(/\r?\n/);
newline = newlineMatch ? newlineMatch[0] : getOsEol();
assignDisabledRanges(postcssDoc, postcssResult);
}
if (stylelint._options.reportNeedlessDisables || stylelint._options.ignoreDisables) {
postcssResult.stylelint.ignoreDisables = true;
}
const postcssRoots =
/** @type {import('postcss').Root[]} */ (postcssDoc &&
postcssDoc.constructor.name === 'Document'
? postcssDoc.nodes
: [postcssDoc]);
// Promises for the rules. Although the rule code runs synchronously now,
// the use of Promises makes it compatible with the possibility of async
// rules down the line.
/** @type {Array<Promise<any>>} */
const performRules = [];
const rules = config.rules
? Object.keys(config.rules).sort((a, b) => rulesOrder.indexOf(a) - rulesOrder.indexOf(b))
: [];
rules.forEach((ruleName) => {
const ruleFunction = requireRule(ruleName) || _.get(config, ['pluginFunctions', ruleName]);
if (ruleFunction === undefined) {
performRules.push(
Promise.all(
postcssRoots.map((postcssRoot) =>
reportUnknownRuleNames(ruleName, postcssRoot, postcssResult),
),
),
);
return;
}
const ruleSettings = _.get(config, ['rules', ruleName]);
if (ruleSettings === null || ruleSettings[0] === null) {
return;
}
const primaryOption = ruleSettings[0];
const secondaryOptions = ruleSettings[1];
// Log the rule's severity in the PostCSS result
const defaultSeverity = config.defaultSeverity || 'error';
postcssResult.stylelint.ruleSeverities[ruleName] = _.get(
secondaryOptions,
'severity',
defaultSeverity,
);
postcssResult.stylelint.customMessages[ruleName] = _.get(secondaryOptions, 'message');
performRules.push(
Promise.all(
postcssRoots.map((postcssRoot) =>
ruleFunction(primaryOption, secondaryOptions, {
fix: stylelint._options.fix,
newline,
})(postcssRoot, postcssResult),
),
),
);
});
return Promise.all(performRules);
}
/**
* @param {string} [filePath]
* @returns {Object}
*/
function createEmptyPostcssResult(filePath) {
return {
root: {
source: {
input: { file: filePath },
},
},
messages: [],
stylelint: { stylelintError: false },
};
}