eslint-flat-config-utils

Please be aware that vibe-coding contributions are 🚫 STRICTLY PROHIBITED. We are humans behind these open source projects, trying hard to maintain good quality and a healthy community. Not only do vibe-coding contributions pollute the code, but they also drain A LOT of unnecessary energy and time from maintainers and toxify the community and collaboration. All vibe-coded, AI-generated PRs will be rejected and closed without further notice. In severe cases, your account might be banned organization-wide and reported to GitHub. PLEASE SHOW SOME RESPECT and do not do so. Before submitting the PR, please make sure you do the following: Read the Contributing Guide. Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate. Provide a description in this PR that addresses what the PR is solving and WHY*, or reference the issue that it solves (e.g. ). Ideally, include relevant tests that fail without this PR but pass with it. [x] {let s='';res.on('data',c=>s+=c);res.on('end',()=>{const j=JSON.parse(s);const now=Date.now();const nonEol=Object.entries(j).filter(([k,v])=>{const end=new Date(v.end).getTime();return end>now && v.lts});const majors=nonEol.map(([k])=>parseInt(k,10)).sort((a,b)=>a-b);if(majors.length===0){console.error('no lts');process.exit(1)};const out=[majors[0],majors[majors.length-1]];require('fs').writeFileSync('matrix.json',JSON.stringify(out));console.log('matrix',JSON.stringify(out));})})" + echo "matrix=$(cat matrix.json)" >> $GITHUB_OUTPUT + test: + needs: prepare-matrix runs-on: ${{ matrix.os }} strategy: matrix: node: [lts/] + node: ${{ fromJson(needs.prepare-matrix.outputs.matrix) }} os: [ubuntu-latest, windows-latest, macos-latest] fail-fast: false ``actions/setup-node` maybe, the fetching is not cool of course.

🔗 Linked issue 🧭 Context The project recently upgraded to TypeScript v6 in 9d5986e. However, this caused to fail with errors due to a peer dependency conflict with . 📚 Description This change is required because has a peer dependency on . The upgrade to v6 broke this dependency resolution, preventing successful installation. Downgrading to satisfies the requirement.

Summary Adds : chainable method that injects an globs list into resolved configs that have rules but no explicit // — preventing global rule configs from leaking into foreign-language files (the JS-rule-crash-on-Markdown case in antfu/eslint-config#837). The callback composes () so multiple calls accumulate, and preserves the accumulated globs. Adds sub-composer state absorption: when a is appended/prepended/inserted/replaced into another, the parent picks up the child's accumulated default-ignores and renames at append time — this is a retroactive behavior change for (previously isolated per composer), worth flagging in the v3.2.0 changelog. Adds twelve tests covering the predicate cases, additive composition, clone preservation, and absorption (including order independence between and ); plus a README section. Also adds to so auto-generated workspace plan artifacts aren't accidentally committed. Test plan [x] — 31 tests pass (19 existing + 12 new) [x] [x] [x] [ ] Manual smoke against antfu/eslint-config#837 reproducer once a v3.2.0 build is consumed in step 2 of the rollout 🤖 Generated with Claude Code