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Merged
ota-meshi merged 6 commits into from
Jan 19, 2026
+80 −4
Merged

Use language config in shareable configs #543

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2257134
Initial plan
Copilot Jan 19, 2026
cf7bbdd
Update base config to use language config instead of parser
Copilot Jan 19, 2026
4496448
Add changeset for language config breaking change
Copilot Jan 19, 2026
4ae1ad8
Add test to verify base config uses language config
Copilot Jan 19, 2026
6b1869e
Improve pattern matching in base config test
Copilot Jan 19, 2026
8281772
Fix linting errors in test file
Copilot Jan 19, 2026
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5 changes: 5 additions & 0 deletions .changeset/language-config-in-shareable-configs.md
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Original file line number Diff line number Diff line change
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---
"eslint-plugin-yml": major
---

Use language config in shareable configs. The shareable configs now use the new ESLint v9 language config API (`language: "yml/yaml"`) instead of the legacy parser approach (`languageOptions: { parser }`). This is a breaking change that aligns with ESLint's language plugin architecture.
5 changes: 1 addition & 4 deletions src/configs/flat/base.ts
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@@ -1,5 +1,4 @@
import type { ESLint, Linter } from "eslint";
import * as parser from "yaml-eslint-parser";
import plugin from "../../index.js";

export default [
Expand All @@ -13,9 +12,7 @@ export default [
},
{
files: ["*.yaml", "**/*.yaml", "*.yml", "**/*.yml"],
languageOptions: {
parser,
},
language: "yml/yaml",
rules: {
// ESLint core rules known to cause problems with YAML.
"no-irregular-whitespace": "off",
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