69 lines
2 KiB
JavaScript
69 lines
2 KiB
JavaScript
/**
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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"use strict";
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const globals = require("../globals");
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const fs = require("fs");
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module.exports = {
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meta: {
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docs: {
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url: "https://firefox-source-docs.mozilla.org/code-quality/lint/linters/eslint-plugin-mozilla/rules/no-more-globals.html",
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},
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messages: {
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newGlobal:
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"The global {{ name }} was not previously in this file, where new global variables are not permitted.",
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removedGlobal:
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"The global {{ name }} was expected to be defined in this file but isn't. Please remove it from the .globals file.",
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missingGlobalsFile:
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"This file has mozilla/no-more-globals enabled but has no .globals sibling file. Please create one.",
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},
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schema: [],
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type: "problem",
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},
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create(context) {
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return {
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Program(node) {
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let filename = context.filename;
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let code = context.sourceCode.getText();
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let currentGlobals = globals.getGlobalsForCode(code, {}, false);
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let knownGlobals;
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try {
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knownGlobals = new Set(
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JSON.parse(fs.readFileSync(filename + ".globals"))
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);
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} catch (ex) {
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context.report({
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node,
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messageId: "missingGlobalsFile",
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});
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return;
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}
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for (let { name } of currentGlobals) {
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if (!knownGlobals.has(name)) {
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context.report({
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node,
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messageId: "newGlobal",
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data: { name },
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});
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}
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}
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for (let known of knownGlobals) {
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if (!currentGlobals.some(n => n.name == known)) {
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context.report({
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node,
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messageId: "removedGlobal",
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data: { name: known },
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});
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}
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}
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},
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};
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},
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};
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