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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
"use strict";
const path = require("path");
const xpcshellTestConfig = require("eslint-plugin-mozilla/lib/configs/xpcshell-test.js");
const browserTestConfig = require("eslint-plugin-mozilla/lib/configs/browser-test.js");
const fs = require("fs");
/**
* Some configurations have overrides, which can't be specified within overrides,
* so we need to remove them.
*/
function removeOverrides(config) {
config = { ...config };
delete config.overrides;
return config;
}
function readFile(path) {
return fs
.readFileSync(path, { encoding: "utf-8" })
.split("\n")
.filter(p => p && !p.startsWith("#"))
.map(p => p.replace(/^comm\//, ""));
}
const ignorePatterns = [
...readFile(path.join(__dirname, "tools", "lint", "ThirdPartyPaths.txt")),
...readFile(path.join(__dirname, "tools", "lint", "Generated.txt")),
];
const xpcshellTestPaths = [
"**/test*/unit*/",
"**/test*/xpcshell/",
"chat/**/test*/",
];
const browserTestPaths = [
"**/test*/**/browser/",
"mail/base/test/performance/",
"mail/base/test/webextensions/",
"mail/test/static/",
];
module.exports = {
parser: "@babel/eslint-parser",
parserOptions: {
sourceType: "script",
babelOptions: {
configFile: path.join(__dirname, "..", ".babel-eslint.rc.js"),
},
},
settings: {
"import/extensions": [".mjs"],
// To avoid bad interactions of the html plugin with the xml preprocessor in
// eslint-plugin-mozilla, we turn off processing of the html plugin for .xml
// files.
"html/xml-extensions": [".xhtml"],
},
// Ignore eslint configurations in parent directories.
root: true,
ignorePatterns,
// We would like the same base rules as provided by
// mozilla/tools/lint/eslint/eslint-plugin-mozilla/lib/configs/recommended.js
extends: ["plugin:mozilla/recommended"],
// When adding items to this file please check for effects on sub-directories.
plugins: ["mozilla", "import"],
rules: {
complexity: ["error", 80],
"func-names": ["error", "never"],
"mozilla/prefer-boolean-length-check": "off",
},
overrides: [
{
files: [".eslintrc.js"],
env: {
node: true,
browser: false,
},
},
{
files: ["*.mjs"],
rules: {
"import/default": "error",
"import/export": "error",
"import/named": "error",
"import/namespace": "error",
"import/newline-after-import": "error",
"import/no-duplicates": "error",
"import/no-absolute-path": "error",
"import/no-named-default": "error",
"import/no-named-as-default": "error",
"import/no-named-as-default-member": "error",
"import/no-self-import": "error",
"import/no-unassigned-import": "error",
"import/no-unresolved": [
"error",
// Bug 1773473 - Ignore resolver URLs for chrome and resource as we
// do not yet have a resolver for them.
{ ignore: ["chrome://", "resource://"] },
],
"import/no-useless-path-segments": "error",
},
},
{
files: ["mail/components/storybook/**"],
rules: {
"import/no-unresolved": "off",
},
},
{
...removeOverrides(xpcshellTestConfig),
files: xpcshellTestPaths.map(path => `${path}**`),
rules: {
...xpcshellTestConfig.rules,
"func-names": "off",
},
},
{
// If it is a test head file, we turn off global unused variable checks, as it
// would require searching the other test files to know if they are used or not.
// This would be expensive and slow, and it isn't worth it for head files.
// We could get developers to declare as exported, but that doesn't seem worth it.
files: [
...browserTestPaths.map(path => `${path}head*.js`),
...xpcshellTestPaths.map(path => `${path}head*.js`),
],
rules: {
"no-unused-vars": [
"error",
{
args: "none",
vars: "local",
},
],
},
},
{
...browserTestConfig,
files: browserTestPaths.map(path => `${path}**`),
rules: {
...browserTestConfig.rules,
"func-names": "off",
},
},
],
};
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