eslint-plugin-lodash-template/lib/processors/utils/get-config.js

ESLint plugin for John Resig-style micro template, Lodash's template, Underscore's template and EJS.

"use strict";

const getLinters = require("../../utils/get-linters");

let curConfig = null;
let alternativeCLIEngine = null;

for (const Linter of getLinters()) {
    const verifyBase = Linter.prototype.verify;
    const verifyAndFixBase = Linter.prototype.verifyAndFix;
    Object.defineProperty(Linter.prototype, "verify", {
        // eslint-disable-next-line no-loop-func -- ignore
        value: function verify(textOrSourceCode, config, ...args) {
            curConfig = config;
            const result = verifyBase.call(
                this,
                textOrSourceCode,
                config,
                ...args,
            );
            curConfig = null;
            return result;
        },
        configurable: true,
        writable: true,
    });
    Object.defineProperty(Linter.prototype, "verifyAndFix", {
        // eslint-disable-next-line no-loop-func -- ignore
        value: function verifyAndFix(textOrSourceCode, config, ...args) {
            curConfig = config;
            const result = verifyAndFixBase.call(
                this,
                textOrSourceCode,
                config,
                ...args,
            );
            curConfig = null;
            return result;
        },
        configurable: true,
        writable: true,
    });
}

module.exports = (filename) => {
    if (curConfig) {
        if (typeof curConfig.extractConfig === "function") {
            return curConfig.extractConfig(filename);
        }
        return curConfig;
    }
    const eslint = require("eslint");
    try {
        if (!alternativeCLIEngine) {
            alternativeCLIEngine = new eslint.CLIEngine({});
        }
        const config = alternativeCLIEngine.getConfigForFile(filename);
        return Object.assign({ filePath: filename }, config);
    } catch (_) {
        // ignore
    }
    return {};
};