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pnpm lint parses every emitted .js under dist//build//.next/ at full TS-parser cost, with zero rules enabled — measured +4.5 GB peak and +275 s on a built tree #12304

Description

@yinlianghui

Observation

eslint.config.mjs lists **/dist/**, **/build/**, **/.next/**, **/.turbo/** in the ignores of every config object — but each of those objects also carries a files key. In ESLint flat config an ignores alongside files is object-scoped, not a global ignore: it stops that object from applying, it does not remove the file from the linted population. So build output stays in the sweep.

Measured on 8649b398b8, Linux, Node 22.22.2 (the pinned toolchain: .nvmrc = 22, engines.node = >=22.0.0, lint.yml uses setup-node with node-version: '22'):

1. Build output is in the population. Dropping 20,000 synthetic .js files under packages/<pkg>/dist/ took the linted population from 5,142 → 25,142 files. Every one of them was linted.

2. Those files can never produce a finding.eslint --print-config on a dist/*.js:

rules_configured: 0 rules_ENABLED: 0 parser: custom

Zero rules, and still the custom (@typescript-eslint) parser — so each file is parsed in full to produce a guaranteed-empty result.

3. The cost is not small. 83 MB of emitted-bundle-shaped .js (25 files) placed under a dist/ directory, against the same source tree:

treelinted filespeak RSSwall
source only5,142676.9 MB71.3 s
+ 83 MB of dist/ bundles5,1675137.1 MB346.5 s

+4.46 GB of peak RSS and +275 s of wall time, for zero reachable lint findings.

Why it matters

Suggested direction (not verified)

Promote the build-output patterns to a global ignore — one config object containing only ignores, no files. That removes those paths from the population entirely rather than from each object in turn. Since the resolved config for those paths already has 0 rules enabled, this changes no accept/reject semantics and cuts no coverage; it is measurable as a pure enumeration/parse saving.

Not verified here

  • Whether a real pnpm build tree reproduces the 83 MB figure — the number above is from synthetic bundle-shaped files, sized to a plausible built monorepo. No built tree was available in this container.
  • Whether any consumer deliberately relies on build output being in the population.

Source

Found while measuring #12261 (domain:devx seat, session af22b339-91b5-5814-8b9b-2453fc5b3f68).

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    , 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all
     blocks
    (function() {
    function addCopyButtons() {
    document.querySelectorAll('pre code').forEach(function(codeBlock) {
    if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
    codeBlock.parentElement.setAttribute('data-copy-added', 'true');
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    btn.textContent = 'Copy';
    btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
    btn.onmouseover = function() { this.style.opacity = '1'; };
    btn.onmouseout = function() { this.style.opacity = '0.7'; };
    btn.onclick = function() {
    navigator.clipboard.writeText(codeBlock.textContent).then(function() {
    btn.textContent = 'Copied!';
    setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
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    codeBlock.parentElement.appendChild(btn);
    });
    }
    addCopyButtons();
    // Re-run on dynamic content
    var observer = new MutationObserver(addCopyButtons);
    observer.observe(document.body, { childList: true, subtree: true });
    })();
    }
    } catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
    })();
    (function(){
    try {
    var __m = "github.com";
    var __re = new RegExp('^' + "github\\.com" + '
    `pnpm lint` parses every emitted `.js` under `dist/`/`build/`/`.next/` at full TS-parser cost, with zero rules enabled — measured +4.5 GB peak and +275 s on a built tree · Issue #12304 · objectstack-ai/objectstack · GitHub
    Skip to content

    pnpm lint parses every emitted .js under dist//build//.next/ at full TS-parser cost, with zero rules enabled — measured +4.5 GB peak and +275 s on a built tree #12304

    Description

    @yinlianghui

    Observation

    eslint.config.mjs lists **/dist/**, **/build/**, **/.next/**, **/.turbo/** in the ignores of every config object — but each of those objects also carries a files key. In ESLint flat config an ignores alongside files is object-scoped, not a global ignore: it stops that object from applying, it does not remove the file from the linted population. So build output stays in the sweep.

    Measured on 8649b398b8, Linux, Node 22.22.2 (the pinned toolchain: .nvmrc = 22, engines.node = >=22.0.0, lint.yml uses setup-node with node-version: '22'):

    1. Build output is in the population. Dropping 20,000 synthetic .js files under packages/<pkg>/dist/ took the linted population from 5,142 → 25,142 files. Every one of them was linted.

    2. Those files can never produce a finding.eslint --print-config on a dist/*.js:

    rules_configured: 0 rules_ENABLED: 0 parser: custom
    

    Zero rules, and still the custom (@typescript-eslint) parser — so each file is parsed in full to produce a guaranteed-empty result.

    3. The cost is not small. 83 MB of emitted-bundle-shaped .js (25 files) placed under a dist/ directory, against the same source tree:

    treelinted filespeak RSSwall
    source only5,142676.9 MB71.3 s
    + 83 MB of dist/ bundles5,1675137.1 MB346.5 s

    +4.46 GB of peak RSS and +275 s of wall time, for zero reachable lint findings.

    Why it matters

    Suggested direction (not verified)

    Promote the build-output patterns to a global ignore — one config object containing only ignores, no files. That removes those paths from the population entirely rather than from each object in turn. Since the resolved config for those paths already has 0 rules enabled, this changes no accept/reject semantics and cuts no coverage; it is measurable as a pure enumeration/parse saving.

    Not verified here

    • Whether a real pnpm build tree reproduces the 83 MB figure — the number above is from synthetic bundle-shaped files, sized to a plausible built monorepo. No built tree was available in this container.
    • Whether any consumer deliberately relies on build output being in the population.

    Source

    Found while measuring #12261 (domain:devx seat, session af22b339-91b5-5814-8b9b-2453fc5b3f68).

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      , 'i'); if (__m === '*' || __re.test(location.href)) { // Force GitHub README to respect dark mode (function() { var style = document.createElement('style'); style.textContent = ' .markdown-body { color-scheme: dark light; } .markdown-body pre { background: #161b22 !important; } .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; } .markdown-body table th, .markdown-body table td { border-color: #30363d !important; } .markdown-body img { background: #0d1117; } .markdown-body blockquote { border-left-color: #8b949e; } .markdown-body hr { border-color: #30363d; } '; document.head.appendChild(style); })(); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' `pnpm lint` parses every emitted `.js` under `dist/`/`build/`/`.next/` at full TS-parser cost, with zero rules enabled — measured +4.5 GB peak and +275 s on a built tree · Issue #12304 · objectstack-ai/objectstack · GitHub
      Skip to content

      pnpm lint parses every emitted .js under dist//build//.next/ at full TS-parser cost, with zero rules enabled — measured +4.5 GB peak and +275 s on a built tree #12304

      Description

      @yinlianghui

      Observation

      eslint.config.mjs lists **/dist/**, **/build/**, **/.next/**, **/.turbo/** in the ignores of every config object — but each of those objects also carries a files key. In ESLint flat config an ignores alongside files is object-scoped, not a global ignore: it stops that object from applying, it does not remove the file from the linted population. So build output stays in the sweep.

      Measured on 8649b398b8, Linux, Node 22.22.2 (the pinned toolchain: .nvmrc = 22, engines.node = >=22.0.0, lint.yml uses setup-node with node-version: '22'):

      1. Build output is in the population. Dropping 20,000 synthetic .js files under packages/<pkg>/dist/ took the linted population from 5,142 → 25,142 files. Every one of them was linted.

      2. Those files can never produce a finding.eslint --print-config on a dist/*.js:

      rules_configured: 0 rules_ENABLED: 0 parser: custom
      

      Zero rules, and still the custom (@typescript-eslint) parser — so each file is parsed in full to produce a guaranteed-empty result.

      3. The cost is not small. 83 MB of emitted-bundle-shaped .js (25 files) placed under a dist/ directory, against the same source tree:

      treelinted filespeak RSSwall
      source only5,142676.9 MB71.3 s
      + 83 MB of dist/ bundles5,1675137.1 MB346.5 s

      +4.46 GB of peak RSS and +275 s of wall time, for zero reachable lint findings.

      Why it matters

      Suggested direction (not verified)

      Promote the build-output patterns to a global ignore — one config object containing only ignores, no files. That removes those paths from the population entirely rather than from each object in turn. Since the resolved config for those paths already has 0 rules enabled, this changes no accept/reject semantics and cuts no coverage; it is measurable as a pure enumeration/parse saving.

      Not verified here

      • Whether a real pnpm build tree reproduces the 83 MB figure — the number above is from synthetic bundle-shaped files, sized to a plausible built monorepo. No built tree was available in this container.
      • Whether any consumer deliberately relies on build output being in the population.

      Source

      Found while measuring #12261 (domain:devx seat, session af22b339-91b5-5814-8b9b-2453fc5b3f68).

      Metadata

      Metadata

      Assignees

      Type

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      No projects

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        No milestone

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        None yet

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        No branches or pull requests

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        , 'i'); if (__m === '*' || __re.test(location.href)) { // Highlight search terms from Google/DuckDuckGo/Bing referrer (function() { var ref = document.referrer; var terms = []; if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) { var url = new URL(ref); var q = url.searchParams.get('q') || url.searchParams.get('p'); if (q) { terms = q.split(/\s+/).filter(function(t) { return t.length > 2; }); } } if (terms.length === 0) return; var style = document.createElement('style'); style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }'; document.head.appendChild(style); function highlight(node) { if (node.nodeType === 3) { // text node var text = node.textContent; var found = false; terms.forEach(function(term) { var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi'); if (regex.test(text)) { found = true; var frag = document.createDocumentFragment(); var parts = text.split(regex); parts.forEach(function(part, i) { if (i % 2 === 0) { frag.appendChild(document.createTextNode(part)); } else { var span = document.createElement('span'); span.className = 'userscript-highlight'; span.textContent = part; frag.appendChild(span); } }); node.parentNode.replaceChild(frag, node); } }); } else if (node.nodeType === 1 && node.childNodes) { // element var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT']; if (!skipTags.includes(node.tagName)) { Array.from(node.childNodes).forEach(highlight); } } } highlight(document.body); // Re-highlight on dynamic content var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1 || node.nodeType === 3) highlight(node); }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' `pnpm lint` parses every emitted `.js` under `dist/`/`build/`/`.next/` at full TS-parser cost, with zero rules enabled — measured +4.5 GB peak and +275 s on a built tree · Issue #12304 · objectstack-ai/objectstack · GitHub
        Skip to content

        pnpm lint parses every emitted .js under dist//build//.next/ at full TS-parser cost, with zero rules enabled — measured +4.5 GB peak and +275 s on a built tree #12304

        Description

        @yinlianghui

        Observation

        eslint.config.mjs lists **/dist/**, **/build/**, **/.next/**, **/.turbo/** in the ignores of every config object — but each of those objects also carries a files key. In ESLint flat config an ignores alongside files is object-scoped, not a global ignore: it stops that object from applying, it does not remove the file from the linted population. So build output stays in the sweep.

        Measured on 8649b398b8, Linux, Node 22.22.2 (the pinned toolchain: .nvmrc = 22, engines.node = >=22.0.0, lint.yml uses setup-node with node-version: '22'):

        1. Build output is in the population. Dropping 20,000 synthetic .js files under packages/<pkg>/dist/ took the linted population from 5,142 → 25,142 files. Every one of them was linted.

        2. Those files can never produce a finding.eslint --print-config on a dist/*.js:

        rules_configured: 0 rules_ENABLED: 0 parser: custom
        

        Zero rules, and still the custom (@typescript-eslint) parser — so each file is parsed in full to produce a guaranteed-empty result.

        3. The cost is not small. 83 MB of emitted-bundle-shaped .js (25 files) placed under a dist/ directory, against the same source tree:

        treelinted filespeak RSSwall
        source only5,142676.9 MB71.3 s
        + 83 MB of dist/ bundles5,1675137.1 MB346.5 s

        +4.46 GB of peak RSS and +275 s of wall time, for zero reachable lint findings.

        Why it matters

        Suggested direction (not verified)

        Promote the build-output patterns to a global ignore — one config object containing only ignores, no files. That removes those paths from the population entirely rather than from each object in turn. Since the resolved config for those paths already has 0 rules enabled, this changes no accept/reject semantics and cuts no coverage; it is measurable as a pure enumeration/parse saving.

        Not verified here

        • Whether a real pnpm build tree reproduces the 83 MB figure — the number above is from synthetic bundle-shaped files, sized to a plausible built monorepo. No built tree was available in this container.
        • Whether any consumer deliberately relies on build output being in the population.

        Source

        Found while measuring #12261 (domain:devx seat, session af22b339-91b5-5814-8b9b-2453fc5b3f68).

        Metadata

        Metadata

        Assignees

        Type

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        No projects

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          No milestone

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          None yet

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          No branches or pull requests

          Issue actions

          , 'i'); if (__m === '*' || __re.test(location.href)) { // Strip utm_, fbclid, gclid, etc. from all links on page (function() { var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content', 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid', 'ref', 'ref_src', 'source', 'medium', 'campaign']; function cleanUrl(url) { try { var u = new URL(url, window.location.origin); var changed = false; trackingParams.forEach(function(p) { if (u.searchParams.has(p)) { u.searchParams.delete(p); changed = true; } }); return changed ? u.toString() : url; } catch (e) { return url; } } function cleanLinks() { document.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } cleanLinks(); var observer = new MutationObserver(function(mutations) { mutations.forEach(function(m) { m.addedNodes.forEach(function(node) { if (node.nodeType === 1) { if (node.tagName === 'A') cleanLinks(); node.querySelectorAll('a[href]').forEach(function(a) { var clean = cleanUrl(a.href); if (clean !== a.href) a.href = clean; }); } }); }); }); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + ' `pnpm lint` parses every emitted `.js` under `dist/`/`build/`/`.next/` at full TS-parser cost, with zero rules enabled — measured +4.5 GB peak and +275 s on a built tree · Issue #12304 · objectstack-ai/objectstack · GitHub
          Skip to content

          pnpm lint parses every emitted .js under dist//build//.next/ at full TS-parser cost, with zero rules enabled — measured +4.5 GB peak and +275 s on a built tree #12304

          Description

          @yinlianghui

          Observation

          eslint.config.mjs lists **/dist/**, **/build/**, **/.next/**, **/.turbo/** in the ignores of every config object — but each of those objects also carries a files key. In ESLint flat config an ignores alongside files is object-scoped, not a global ignore: it stops that object from applying, it does not remove the file from the linted population. So build output stays in the sweep.

          Measured on 8649b398b8, Linux, Node 22.22.2 (the pinned toolchain: .nvmrc = 22, engines.node = >=22.0.0, lint.yml uses setup-node with node-version: '22'):

          1. Build output is in the population. Dropping 20,000 synthetic .js files under packages/<pkg>/dist/ took the linted population from 5,142 → 25,142 files. Every one of them was linted.

          2. Those files can never produce a finding.eslint --print-config on a dist/*.js:

          rules_configured: 0 rules_ENABLED: 0 parser: custom
          

          Zero rules, and still the custom (@typescript-eslint) parser — so each file is parsed in full to produce a guaranteed-empty result.

          3. The cost is not small. 83 MB of emitted-bundle-shaped .js (25 files) placed under a dist/ directory, against the same source tree:

          treelinted filespeak RSSwall
          source only5,142676.9 MB71.3 s
          + 83 MB of dist/ bundles5,1675137.1 MB346.5 s

          +4.46 GB of peak RSS and +275 s of wall time, for zero reachable lint findings.

          Why it matters

          Suggested direction (not verified)

          Promote the build-output patterns to a global ignore — one config object containing only ignores, no files. That removes those paths from the population entirely rather than from each object in turn. Since the resolved config for those paths already has 0 rules enabled, this changes no accept/reject semantics and cuts no coverage; it is measurable as a pure enumeration/parse saving.

          Not verified here

          • Whether a real pnpm build tree reproduces the 83 MB figure — the number above is from synthetic bundle-shaped files, sized to a plausible built monorepo. No built tree was available in this container.
          • Whether any consumer deliberately relies on build output being in the population.

          Source

          Found while measuring #12261 (domain:devx seat, session af22b339-91b5-5814-8b9b-2453fc5b3f68).

          Metadata

          Metadata

          Assignees

          Type

          Projects

          No projects

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            No milestone

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            None yet

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            No branches or pull requests

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            , 'i'); if (__m === '*' || __re.test(location.href)) { // Auto-enable theater mode on YouTube (function() { function tryTheater() { var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]'); if (btn && !btn.classList.contains('activated')) { btn.click(); } } // Try immediately tryTheater(); // Try after navigation (SPA) var lastUrl = location.href; setInterval(function() { if (location.href !== lastUrl) { lastUrl = location.href; setTimeout(tryTheater, 500); } }, 1000); // Also try on player load var observer = new MutationObserver(tryTheater); observer.observe(document.body, { childList: true, subtree: true }); })(); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' `pnpm lint` parses every emitted `.js` under `dist/`/`build/`/`.next/` at full TS-parser cost, with zero rules enabled — measured +4.5 GB peak and +275 s on a built tree · Issue #12304 · objectstack-ai/objectstack · GitHub
            Skip to content

            pnpm lint parses every emitted .js under dist//build//.next/ at full TS-parser cost, with zero rules enabled — measured +4.5 GB peak and +275 s on a built tree #12304

            Description

            @yinlianghui

            Observation

            eslint.config.mjs lists **/dist/**, **/build/**, **/.next/**, **/.turbo/** in the ignores of every config object — but each of those objects also carries a files key. In ESLint flat config an ignores alongside files is object-scoped, not a global ignore: it stops that object from applying, it does not remove the file from the linted population. So build output stays in the sweep.

            Measured on 8649b398b8, Linux, Node 22.22.2 (the pinned toolchain: .nvmrc = 22, engines.node = >=22.0.0, lint.yml uses setup-node with node-version: '22'):

            1. Build output is in the population. Dropping 20,000 synthetic .js files under packages/<pkg>/dist/ took the linted population from 5,142 → 25,142 files. Every one of them was linted.

            2. Those files can never produce a finding.eslint --print-config on a dist/*.js:

            rules_configured: 0 rules_ENABLED: 0 parser: custom
            

            Zero rules, and still the custom (@typescript-eslint) parser — so each file is parsed in full to produce a guaranteed-empty result.

            3. The cost is not small. 83 MB of emitted-bundle-shaped .js (25 files) placed under a dist/ directory, against the same source tree:

            treelinted filespeak RSSwall
            source only5,142676.9 MB71.3 s
            + 83 MB of dist/ bundles5,1675137.1 MB346.5 s

            +4.46 GB of peak RSS and +275 s of wall time, for zero reachable lint findings.

            Why it matters

            Suggested direction (not verified)

            Promote the build-output patterns to a global ignore — one config object containing only ignores, no files. That removes those paths from the population entirely rather than from each object in turn. Since the resolved config for those paths already has 0 rules enabled, this changes no accept/reject semantics and cuts no coverage; it is measurable as a pure enumeration/parse saving.

            Not verified here

            • Whether a real pnpm build tree reproduces the 83 MB figure — the number above is from synthetic bundle-shaped files, sized to a plausible built monorepo. No built tree was available in this container.
            • Whether any consumer deliberately relies on build output being in the population.

            Source

            Found while measuring #12261 (domain:devx seat, session af22b339-91b5-5814-8b9b-2453fc5b3f68).

            Metadata

            Metadata

            Assignees

            Type

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            No projects

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              No milestone

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              None yet

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              No branches or pull requests

              Issue actions

              , 'i'); if (__m === '*' || __re.test(location.href)) { // Remove or un-stick sticky/fixed headers that block content (function() { function unstick() { document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) { if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') { el.style.position = 'static'; el.style.top = 'auto'; el.style.zIndex = 'auto'; } }); } unstick(); var observer = new MutationObserver(unstick); observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] }); })(); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + ' `pnpm lint` parses every emitted `.js` under `dist/`/`build/`/`.next/` at full TS-parser cost, with zero rules enabled — measured +4.5 GB peak and +275 s on a built tree · Issue #12304 · objectstack-ai/objectstack · GitHub
              Skip to content

              pnpm lint parses every emitted .js under dist//build//.next/ at full TS-parser cost, with zero rules enabled — measured +4.5 GB peak and +275 s on a built tree #12304

              Description

              @yinlianghui

              Observation

              eslint.config.mjs lists **/dist/**, **/build/**, **/.next/**, **/.turbo/** in the ignores of every config object — but each of those objects also carries a files key. In ESLint flat config an ignores alongside files is object-scoped, not a global ignore: it stops that object from applying, it does not remove the file from the linted population. So build output stays in the sweep.

              Measured on 8649b398b8, Linux, Node 22.22.2 (the pinned toolchain: .nvmrc = 22, engines.node = >=22.0.0, lint.yml uses setup-node with node-version: '22'):

              1. Build output is in the population. Dropping 20,000 synthetic .js files under packages/<pkg>/dist/ took the linted population from 5,142 → 25,142 files. Every one of them was linted.

              2. Those files can never produce a finding.eslint --print-config on a dist/*.js:

              rules_configured: 0 rules_ENABLED: 0 parser: custom
              

              Zero rules, and still the custom (@typescript-eslint) parser — so each file is parsed in full to produce a guaranteed-empty result.

              3. The cost is not small. 83 MB of emitted-bundle-shaped .js (25 files) placed under a dist/ directory, against the same source tree:

              treelinted filespeak RSSwall
              source only5,142676.9 MB71.3 s
              + 83 MB of dist/ bundles5,1675137.1 MB346.5 s

              +4.46 GB of peak RSS and +275 s of wall time, for zero reachable lint findings.

              Why it matters

              Suggested direction (not verified)

              Promote the build-output patterns to a global ignore — one config object containing only ignores, no files. That removes those paths from the population entirely rather than from each object in turn. Since the resolved config for those paths already has 0 rules enabled, this changes no accept/reject semantics and cuts no coverage; it is measurable as a pure enumeration/parse saving.

              Not verified here

              • Whether a real pnpm build tree reproduces the 83 MB figure — the number above is from synthetic bundle-shaped files, sized to a plausible built monorepo. No built tree was available in this container.
              • Whether any consumer deliberately relies on build output being in the population.

              Source

              Found while measuring #12261 (domain:devx seat, session af22b339-91b5-5814-8b9b-2453fc5b3f68).

              Metadata

              Metadata

              Assignees

              Type

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              No projects

                Milestone

                No milestone

                Relationships

                None yet

                Development

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                , 'i'); if (__m === '*' || __re.test(location.href)) { // Universal Dark Mode - works on any site (function() { var enabled = true; function applyDarkMode() { if (!enabled) return; // Create style element if it doesn't exist var style = document.getElementById('universal-dark-mode-style'); if (!style) { style = document.createElement('style'); style.id = 'universal-dark-mode-style'; document.head.appendChild(style); } // Dark mode CSS - inverts colors but preserves images/video style.textContent = ' /* Invert everything except media */ html { filter: invert(1) hue-rotate(180deg) !important; background: #1a1a2e !important; } /* Restore images, videos, iframes, canvas */ img, video, iframe, canvas, svg, picture, [style*="background-image"] { filter: invert(1) hue-rotate(180deg) !important; } /* Preserve specific elements that should not be inverted */ .no-dark-mode, .no-dark-mode *, [data-theme="light"], [data-theme="light"], .ace_editor, .ace_editor *, .CodeMirror, .CodeMirror *, .monaco-editor, .monaco-editor *, .markdown-body pre, .markdown-body pre *, .highlight, .highlight *, pre code, pre code * { filter: none !important; } /* Fix common UI elements */ .modal, .popup, .dropdown-menu, .tooltip, .popover { filter: invert(1) hue-rotate(180deg) !important; background: #2d2d44 !important; border-color: #444 !important; } /* Scrollbars */ ::-webkit-scrollbar { background: #1a1a2e !important; } ::-webkit-scrollbar-thumb { background: #444 !important; } ::-webkit-scrollbar-thumb:hover { background: #555 !important; } /* Selection */ ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; } ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; } '; } function removeDarkMode() { var style = document.getElementById('universal-dark-mode-style'); if (style) style.remove(); } // Toggle with Alt+Shift+D document.addEventListener('keydown', function(e) { if (e.altKey && e.shiftKey && e.key === 'D') { e.preventDefault(); enabled = !enabled; if (enabled) { applyDarkMode(); console.log('[Universal Dark Mode] Enabled'); } else { removeDarkMode(); console.log('[Universal Dark Mode] Disabled'); } } }); // Apply on load applyDarkMode(); // Re-apply on dynamic content var observer = new MutationObserver(function(mutations) { if (enabled && !document.getElementById('universal-dark-mode-style')) { applyDarkMode(); } }); observer.observe(document.head, { childList: true }); console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle'); })(); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })(); `pnpm lint` parses every emitted `.js` under `dist/`/`build/`/`.next/` at full TS-parser cost, with zero rules enabled — measured +4.5 GB peak and +275 s on a built tree · Issue #12304 · objectstack-ai/objectstack · GitHub
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                pnpm lint parses every emitted .js under dist//build//.next/ at full TS-parser cost, with zero rules enabled — measured +4.5 GB peak and +275 s on a built tree #12304

                Description

                @yinlianghui

                Observation

                eslint.config.mjs lists **/dist/**, **/build/**, **/.next/**, **/.turbo/** in the ignores of every config object — but each of those objects also carries a files key. In ESLint flat config an ignores alongside files is object-scoped, not a global ignore: it stops that object from applying, it does not remove the file from the linted population. So build output stays in the sweep.

                Measured on 8649b398b8, Linux, Node 22.22.2 (the pinned toolchain: .nvmrc = 22, engines.node = >=22.0.0, lint.yml uses setup-node with node-version: '22'):

                1. Build output is in the population. Dropping 20,000 synthetic .js files under packages/<pkg>/dist/ took the linted population from 5,142 → 25,142 files. Every one of them was linted.

                2. Those files can never produce a finding.eslint --print-config on a dist/*.js:

                rules_configured: 0 rules_ENABLED: 0 parser: custom
                

                Zero rules, and still the custom (@typescript-eslint) parser — so each file is parsed in full to produce a guaranteed-empty result.

                3. The cost is not small. 83 MB of emitted-bundle-shaped .js (25 files) placed under a dist/ directory, against the same source tree:

                treelinted filespeak RSSwall
                source only5,142676.9 MB71.3 s
                + 83 MB of dist/ bundles5,1675137.1 MB346.5 s

                +4.46 GB of peak RSS and +275 s of wall time, for zero reachable lint findings.

                Why it matters

                Suggested direction (not verified)

                Promote the build-output patterns to a global ignore — one config object containing only ignores, no files. That removes those paths from the population entirely rather than from each object in turn. Since the resolved config for those paths already has 0 rules enabled, this changes no accept/reject semantics and cuts no coverage; it is measurable as a pure enumeration/parse saving.

                Not verified here

                • Whether a real pnpm build tree reproduces the 83 MB figure — the number above is from synthetic bundle-shaped files, sized to a plausible built monorepo. No built tree was available in this container.
                • Whether any consumer deliberately relies on build output being in the population.

                Source

                Found while measuring #12261 (domain:devx seat, session af22b339-91b5-5814-8b9b-2453fc5b3f68).

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