chore: migrate ESLint to flat config - #103
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ESLint 9 made eslint.config.js the default and v10 removes eslintrc support entirely, including the ESLINT_USE_FLAT_CONFIG=false escape hatch, so .eslintrc.js has to go before eslint can be bumped past v8. Translates the existing config as-is: the three extends become a composed config array, and .eslintignore plus ignorePatterns collapse into ignores. The same 12 files are linted with the same rules and no new findings. The eslintrc env node/es6 setting is dropped rather than translated to languageOptions.globals. Only no-undef and no-redeclare consume the globals list, and typescript-eslint's eslint-recommended overrides turn both off for .ts files, so configuring globals has no effect on lint results here. It becomes necessary only if linting is widened to the root .js files. Swaps @typescript-eslint/eslint-plugin for the typescript-eslint meta package, which bundles the parser and exposes the flat configs, and adds @eslint/js for eslint:recommended.
liamhughes
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Jul 31, 2026
| @@ -1,4 +0,0 @@ | |||
| node_modules/* | |||
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This is now ignored by default.
liamhughes
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Jul 31, 2026
| @@ -1,4 +0,0 @@ | |||
| node_modules/* | |||
| **/package.json | |||
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We are only linting *.ts files.
liamhughes
marked this pull request as ready for review
July 31, 2026 01:31
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Background
Open Renovate PR #102 can not be merged because ESLint removes support for
.eslintrc.jsfor configuration.Changes
Translates the existing config as-is: the three extends become a composed config array, and .eslintignore plus ignorePatterns collapse into ignores.