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Updated typescript-eslint to v6 #54693

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merged 13 commits into from
Jul 14, 2023
Merged

Updated typescript-eslint to v6 #54693

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a6f12dd
Updated typescript-eslint to v6 beta
JoshuaKGoldberg Jun 18, 2023
b001345
Corrected non-null chains
JoshuaKGoldberg Jun 18, 2023
4951fc2
Removed unnecessary rule meta.docs.recommended properties
JoshuaKGoldberg Jun 18, 2023
f810a22
Fix build complaint for argument-triva.cjs
JoshuaKGoldberg Jun 18, 2023
70caa0c
Merge branch 'main'
JoshuaKGoldberg Jun 22, 2023
052f6ed
Updated messaging (comment) for todo rules
JoshuaKGoldberg Jun 26, 2023
ee035f7
Merge branch 'main'
JoshuaKGoldberg Jul 6, 2023
0fde8d4
Bumped to latest alpha
JoshuaKGoldberg Jul 6, 2023
170c4e8
Merge branch 'main' into typescript-eslint-v6
JoshuaKGoldberg Jul 11, 2023
2b56c5a
typescript-eslint@v6 stable 🥳
JoshuaKGoldberg Jul 11, 2023
880768e
Review feedback: ^versions, eslint:recommended, config phrasing
JoshuaKGoldberg Jul 14, 2023
53e2ae1
A couple more disables
JoshuaKGoldberg Jul 14, 2023
0b72601
Remove last eslint rules in their recommended set
jakebailey Jul 14, 2023
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65 changes: 27 additions & 38 deletions .eslintrc.json
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,10 @@
"node": true,
"es6": true
},
"extends": [
"plugin:@typescript-eslint/recommended",
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"plugin:@typescript-eslint/stylistic"
],
"plugins": [
"@typescript-eslint", "no-null", "import", "eslint-plugin-local", "simple-import-sort"
],
Expand All @@ -25,16 +29,10 @@
"/coverage/**"
],
"rules": {
"max-statements-per-line": ["error", { "max": 1 }],
"simple-import-sort/imports": "error",
"simple-import-sort/exports": "error",

"@typescript-eslint/adjacent-overload-signatures": "error",
"@typescript-eslint/array-type": "error",
"@typescript-eslint/no-array-constructor": "error",

"brace-style": "off",
"@typescript-eslint/brace-style": ["error", "stroustrup", { "allowSingleLine": true }],

"@typescript-eslint/naming-convention": [
"error",
{ "selector": "typeLike", "format": ["PascalCase"], "filter": { "regex": "^(__String|[A-Za-z]+_[A-Za-z]+)$", "match": false } },
Expand All @@ -48,45 +46,36 @@
{ "selector": "property", "format": null }
],

"@typescript-eslint/consistent-type-definitions": ["error", "interface"],
"@typescript-eslint/consistent-type-assertions": ["error", { "assertionStyle": "as" }],

"max-statements-per-line": ["error", { "max": 1 }],

"no-duplicate-imports": "off",
"@typescript-eslint/no-duplicate-imports": "error",

"@typescript-eslint/no-inferrable-types": "error",
"@typescript-eslint/no-misused-new": "error",
"@typescript-eslint/no-this-alias": "error",

"no-unused-expressions": "off",
"@typescript-eslint/no-unused-expressions": ["error", { "allowTernary": true }],

"@typescript-eslint/prefer-for-of": "error",
"@typescript-eslint/prefer-function-type": "error",
"@typescript-eslint/prefer-namespace-keyword": "error",
"@typescript-eslint/prefer-as-const": "error",

"quotes": "off",
"@typescript-eslint/brace-style": ["error", "stroustrup", { "allowSingleLine": true }],
"@typescript-eslint/no-extra-semi": "error",
"@typescript-eslint/quotes": ["error", "double", { "avoidEscape": true, "allowTemplateLiterals": true }],

"semi": "off",
"@typescript-eslint/semi": "error",
"@typescript-eslint/no-extra-semi": "error",

"space-before-function-paren": "off",
"@typescript-eslint/space-before-function-paren": ["error", {
"asyncArrow": "always",
"anonymous": "always",
"named": "never"
}],

"@typescript-eslint/triple-slash-reference": "error",
"@typescript-eslint/type-annotation-spacing": "error",
"@typescript-eslint/unified-signatures": "error",

"@typescript-eslint/no-extra-non-null-assertion": "error",
// Todo: enable these soon ✨
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"prefer-rest-params": "off",
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"prefer-spread": "off",
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"@typescript-eslint/ban-types": "off",
"@typescript-eslint/no-empty-function": "off",
"@typescript-eslint/no-empty-interface": "off",
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"@typescript-eslint/no-explicit-any": "off",
"@typescript-eslint/no-unused-vars": "off",
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Is this off because the tsconfig has the equivalent Typescript setting on? If not, what kind and how many unused variables do we have?

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Yes, it's this; honestly I would much prefer if we didn't use TS for this at all and instead made it a lint. So annoying to have to ensure my variables are all used just to run tests or something. At least debug skips typecheck.

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Only 18 failures at the moment. Not bad!

However, typescript-eslint/typescript-eslint#5017 -> gajus/eslint-plugin-jsdoc#858 is impacting the codebase here. Probably best to set up the workarounds in a separate PR IMO.


// Pending https://github.com/typescript-eslint/typescript-eslint/issues/4820
"@typescript-eslint/prefer-optional-chain": "off",
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Is this off because it causes lots of churn? If so, I'd like to see it turned on, but maybe in a separate PR.

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Yeah, and also because the rule has more false positives right now than I'm comfortable with - especially in a codebase like TypeScript's that does a lot of funky stuff with scoping.

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I'm honestly shocked we aren't getting lints from prefer-nullish-coalescing too... I was restructuring the lint config of hereby and hit some false positives there too on code like:

declare const a: string | undefined
declare const b: string

const foo = a || b;

Where the actual intent is that the empty string goes away. But maybe that's not a false positive.


// Rules enabled in typescript-eslint configs that are not applicable here
"@typescript-eslint/ban-ts-comment": "off",
"@typescript-eslint/class-literal-property-style": "off",
"@typescript-eslint/consistent-indexed-object-style": "off",
"@typescript-eslint/no-duplicate-enum-values": "off",
"@typescript-eslint/no-namespace": "off",
"@typescript-eslint/no-non-null-asserted-optional-chain": "off",
"@typescript-eslint/no-var-requires": "off",

// scripts/eslint/rules
"local/object-literal-surrounding-space": "error",
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