ota-meshi / eslint-plugin-json-schema-validator / 29057239428

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Add support for YAML modelines (#504)

* feat(no-invalid): resolve YAML schema from yaml-language-server modeline comment

Support '# yaml-language-server: $schema=...' comments so YAML files can
declare their JSON Schema inline, matching VS Code / JetBrains. The modeline
takes precedence over a root $schema property.

Closes #343

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(no-invalid): document yaml-language-server modeline comment support

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* chore: add changeset for yaml-language-server modeline support

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* fix(no-invalid): only detect yaml-language-server modeline in header comments

The modeline scan iterated over all comments in the file, so a
`# yaml-language-server: $schema=...` comment appearing after the root
content could override the root `$schema` property. yaml-language-server
only recognizes the modeline in document-header comments (those preceding
the first content node), so restrict the scan accordingly and fall back to
the root `$schema` otherwise.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* feat(no-invalid): support all yaml-language-server and JetBrains modeline syntaxes

Broaden the YAML schema modeline detection to accept every form used by
yaml-language-server and JetBrains IDEs: the `yaml-language-server:` marker
is optional, the separator may be `=` or `:` (with any surrounding spaces),
the space after `#` is optional, and matching is case-insensitive.

Add fixtures covering each accepted form (colon/equals separators, no-space,
case-insensitive, bare `# $schema:`) plus the header-only and precedence
behaviors.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* chore: handle schema validation toggle in modeline

* chore: ensure no unintended leading characters per MR

Co-authored-by: Yosuke Ota <otameshiyo23... (continued)

678 of 776 branches covered (87.37%)

Branch coverage included in aggregate %.

41 of 41 new or added lines in 1 file covered. (100.0%)

2909 of 3163 relevant lines covered (91.97%)

237.44 hits per line