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.eslintrc.js
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module.exports = {
root: true,
parser: '@typescript-eslint/parser',
parserOptions: {
ecmaVersion: 'latest',
sourceType: 'module',
project: ['./packages/*/tsconfig.json', './plugins/*/tsconfig.json'],
tsconfigRootDir: __dirname,
},
env: {
node: true,
mocha: true,
es2024: true,
},
plugins: ['@typescript-eslint', '@stylistic', 'unicorn', 'header', 'security-node', 'aws-toolkits'],
extends: [
'eslint:recommended',
'plugin:@typescript-eslint/eslint-recommended',
'plugin:@typescript-eslint/recommended-requiring-type-checking',
'plugin:@typescript-eslint/recommended',
// "Add this as the _last_ item in the extends array, so that eslint-config-prettier has the
// opportunity to override other configs." https://github.com/prettier/eslint-plugin-prettier
'plugin:prettier/recommended',
],
rules: {
curly: 2, // Enforce braces on "if"/"for"/etc.
'id-length': [
'error',
{
min: 1,
max: 40,
exceptionPatterns: [
'^codecatalyst_', // CodeCatalyst telemetry names are verbose :(
],
},
],
// https://typescript-eslint.io/rules/naming-convention/
'@typescript-eslint/naming-convention': [
'error',
{
selector: 'default',
format: ['camelCase', 'PascalCase'],
// Allow underscores.
leadingUnderscore: 'allowSingleOrDouble',
trailingUnderscore: 'allowSingleOrDouble',
},
// Allow object properties, enums, and methods to have any format:
// {
// 'foo-1-2-3': 42,
// }
// https://github.com/typescript-eslint/typescript-eslint/issues/1483#issuecomment-733421303
{
selector: ['objectLiteralProperty', 'classMethod', 'enumMember'],
format: null,
// modifiers: ['requiresQuotes'],
},
],
// Avoid accidental use of "==" instead of "===".
eqeqeq: 'error',
// TODO reenable this rule (by removing this off)
'no-async-promise-executor': 'off',
// TODO reenable this rule (by removing this off)
'@typescript-eslint/no-misused-promises': 'off',
// TODO reenable this rule (by removing this off)
'@typescript-eslint/prefer-regexp-exec': 'off',
// TODO reenable this rule (by removing this off)
'no-async-promise-executors': 'off',
// TODO reenable this rule (by removing this off)
'@typescript-eslint/consistent-type-assertions': 'off',
// TODO reenable this rule (by removing this off)
'@typescript-eslint/ban-ts-ignore': 'off',
// TODO rennable this rule (by removing this off)
'@typescript-eslint/class-name-casing': 'off',
// TODO rennable this rule (by removing this off)
'@typescript-eslint/no-inferrable-types': 'off',
// TODO rennable this rule (by removing this off)
'@typescript-eslint/no-unnecessary-type-assertion': 'off',
// TODO rennable this rule (by removing this off)
// this is another troublesome one, producing ~600 issues
'@typescript-eslint/no-use-before-define': 'off',
// TODO rennable this rule (by removing this off)
'no-useless-escape': 'off',
// TODO rennable this rule (by removing this off)
'@typescript-eslint/require-await': 'off',
// TODO rennable this rule (by removing this off)
'@typescript-eslint/no-non-null-assertion': 'off',
// TODO rennable this rule (by removing this off)
'@typescript-eslint/no-explicit-any': 'off',
'@typescript-eslint/no-unsafe-argument': 'off',
// TODO rennable this rule (by removing this off)
'@typescript-eslint/explicit-function-return-type': 'off',
// TODO reenable this rule, tests mostly break this one (by changing off to error)
// This currently produces 700 non fixable by --fix errors
'sort-imports': 'off',
'@typescript-eslint/no-namespace': 'error',
// This is off because prettier takes care of it
'no-extra-semi': 'off',
'@typescript-eslint/no-empty-function': 'off',
// Disallows returning e.g. Promise<…|never> which signals that an exception may be thrown.
// https://stackoverflow.com/q/64230626/152142
'@typescript-eslint/no-redundant-type-constituents': 'off',
'@typescript-eslint/no-unused-vars': 'off',
'@typescript-eslint/no-floating-promises': 'error', // Promises must catch errors or be awaited.
'@typescript-eslint/no-var-requires': 'off', // Should be able to remove with the full migration of SDK v3
'@typescript-eslint/no-unsafe-member-access': 'off', // use typeguard before accessing a member
'@typescript-eslint/no-unsafe-assignment': 'off', // 112 errors, similar to above
'@typescript-eslint/no-unsafe-return': 'off', // 26 errors, similar to above
'@typescript-eslint/no-unsafe-call': 'off', // 24 errors, need types for imported constructors
'@typescript-eslint/restrict-template-expressions': 'off', // 294 errors, forces template literals to be a certain type
'@typescript-eslint/ban-ts-comment': 'off', // 27 errors, bans compiler error exceptions
'@typescript-eslint/explicit-module-boundary-types': 'off', // Remove this once 'explicit-function-return-type' is on
// Do not check loops so while(true) works. Potentially reevalute this.
'no-constant-condition': ['error', { checkLoops: false }],
'no-empty': 'off',
// https://eslint.style/rules/default/spaced-comment
// Require space after // comment.
'@stylistic/spaced-comment': [
'error',
'always',
{
block: {
markers: ['!'], // Allow the /*!…*/ license header.
// exceptions: ['*'],
// balanced: true
},
},
],
// Rules from https://github.com/sindresorhus/eslint-plugin-unicorn
// TODO: 'unicorn/no-useless-promise-resolve-reject': 'error',
// TODO: 'unicorn/prefer-at': 'error',
// TODO: 'unicorn/prefer-event-target': 'error',
// TODO: 'unicorn/prefer-negative-index': 'error',
// TODO: 'unicorn/prefer-string-slice': 'error',
// TODO: 'unicorn/prefer-regexp-test': 'error',
// TODO: 'unicorn/prefer-ternary': 'error',
// TODO(?): 'unicorn/custom-error-definition': 'error',
// TODO(?): 'unicorn/prefer-json-parse-buffer': 'error',
// TODO: ESM modules https://github.com/sindresorhus/eslint-plugin-unicorn/blob/main/docs/rules/prefer-module.md
// 'unicorn/prefer-module': 'error',
'unicorn/no-abusive-eslint-disable': 'error',
'unicorn/no-null': 'error',
'unicorn/no-unnecessary-polyfills': 'error',
'unicorn/no-useless-spread': 'error',
'unicorn/prefer-array-some': 'error',
'unicorn/prefer-blob-reading-methods': 'error',
'unicorn/prefer-code-point': 'error',
'unicorn/prefer-date-now': 'error',
'unicorn/prefer-dom-node-text-content': 'error',
'unicorn/prefer-includes': 'error',
'unicorn/prefer-keyboard-event-key': 'error',
'unicorn/prefer-modern-dom-apis': 'error',
'unicorn/prefer-modern-math-apis': 'error',
'unicorn/prefer-native-coercion-functions': 'error',
// 'unicorn/prefer-node-protocol': 'error',
// 'unicorn/prefer-object-from-entries': 'error',
'unicorn/prefer-reflect-apply': 'error',
'unicorn/prefer-string-trim-start-end': 'error',
'unicorn/prefer-type-error': 'error',
// Discourage `.forEach` because it can lead to accidental, incorrect use of async callbacks.
'unicorn/no-array-for-each': 'error',
'security-node/detect-child-process': 'error',
'header/header': [
'error',
'block',
{
pattern:
'Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.\\r?\\n \\* SPDX-License-Identifier: Apache-2.0',
},
{ lineEndings: 'unix' },
],
'aws-toolkits/no-only-in-tests': 'error',
'aws-toolkits/no-await-on-vscode-msg': 'error',
'aws-toolkits/no-banned-usages': 'error',
'aws-toolkits/no-incorrect-once-usage': 'error',
'aws-toolkits/no-string-exec-for-child-process': 'error',
'aws-toolkits/no-console-log': 'error',
'aws-toolkits/no-json-stringify-in-log': 'error',
'aws-toolkits/no-printf-mismatch': 'error',
'aws-toolkits/no-index-import': 'error',
'no-restricted-imports': [
'error',
{
patterns: [
{
group: ['**/core/dist/*'],
message:
"Avoid importing from the core lib's dist/ folders; please use directly from the core lib defined exports.",
},
],
// The following will place an error on the `fs-extra` import since we do not want it to be used for browser compatibility reasons.
paths: [
{
name: 'fs-extra',
message:
'Avoid fs-extra, use shared/fs/fs.ts. Notify the Toolkit team if your required functionality is not available.',
},
{
name: 'fs',
message: 'Avoid node:fs and use shared/fs/fs.ts when possible.',
},
{
name: 'child_process',
message:
'Avoid child_process, use ChildProcess from `shared/utilities/processUtils.ts` instead.',
},
{
name: '..',
message:
'Avoid importing from index.ts files as it can lead to circular dependencies. Import from the module directly instead.',
},
],
},
],
'prettier/prettier': ['error', { endOfLine: 'auto' }],
},
}