src: define O_SYNC, O_DSYNC and O_DIRECT on Windows - #64707

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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows

These POSIX open-flag names have no macro in the Windows C runtime, so they were missing from fs.constants on Windows and got silently dropped when passed to fs.open(). libuv already honors the underlying flags (FILE_FLAG_WRITE_THROUGH for sync, FILE_FLAG_NO_BUFFERING for direct), so this just exposes the constants under their portable names wired to libuv's values.

Portable code requesting synchronized or unbuffered I/O now works on Windows instead of losing the flag.

@nodejs-github-botnodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. needs-ci PRs that need a full CI run. labels Jul 24, 2026
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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
3171100
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
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✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.12%. Comparing base (874e96e) to head (3171100).
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@@ Coverage Diff @@## main #64707 +/- ##
==========================================
- Coverage 90.24% 90.12% -0.13% 
==========================================
Files 739 741 +2 Lines 241676 242251 +575 Branches 45544 45621 +77 ==========================================
+ Hits 218102 218329 +227 - Misses 15101 15427 +326 - Partials 8473 8495 +22
Files with missing linesCoverage Δ
src/node_constants.cc99.71% <ø> (ø)

... and 104 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
81bdb47
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
PR-URL: #64707
Reviewed-By: Stefan Stojanovic <stefan.stojanovic@janeasystems.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
aduh95 pushed a commit that referenced this pull request Aug 25, 2026
@PickBas@aduh95
src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
83a7949
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
PR-URL: #64707
Reviewed-By: Stefan Stojanovic <stefan.stojanovic@janeasystems.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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@svidgen@sarayev
chore: bump aws-cdk-lib to ^2.254.0 (fixes Windows Node EINVAL) (#3317)
9db547a
## Summary
Raises the `aws-cdk-lib` peer dependency floor from `^2.234.1` to
`^2.254.0` across all packages and refreshes the lockfile (now resolves
`aws-cdk-lib` to `2.267.0`).
## Why
On Windows with recent Node.js releases, CDK asset fingerprinting
crashes with `EINVAL` because `fs.openSync` is invoked with the `O_SYNC
| O_DSYNC` flag combination, which Node rejects on that platform. This
makes the Windows unit/coverage job fully red while Linux and macOS stay
green.
The crash was fixed upstream in aws-cdk and first released in
`aws-cdk-lib` 2.254.0. Bumping the floor to `^2.254.0` pulls in the fix.
- Upstream issue: aws/aws-cdk#38692
- Upstream fix (PR): aws/aws-cdk#37802 (released
in `aws-cdk-lib` 2.254.0)
- Related Node.js change: nodejs/node#64707
## What changed
- Bumped `aws-cdk-lib` from `^2.234.1` to `^2.254.0` in all 16
`packages/*/package.json` files (peer/dep/devDep as applicable). No
other dependencies changed.
- Refreshed `package-lock.json` — `aws-cdk-lib` now resolves to
`2.267.0` (latest within the range), deduped across the workspace.
- Updated `packages/create-amplify/src/default_packages.json` so the
default `aws-cdk-lib` pin for new projects matches the lockfile
(generated via `npm run update:create-amplify-deps`).
- Added a changeset (patch bump for affected published packages).
## How tested
- `npm install` + `npm run build` — clean.
- Ran the unit/integration suites. All CDK-heavy suites pass (in-memory
CDK synthesis integration tests, `auth-construct`, `backend-storage`,
`backend-data`): 280/280.
- No CDK-generated construct snapshots/logical IDs changed as a result
of the bump, so no snapshot regeneration was needed.
- `check:package-lock`, `check:package-json`, `check:api`, and prettier
all pass.
The only local failures were in `platform-core` config/telemetry tests
that write to a real user-profile path; these fail identically with and
without this change in the local sandboxed environment
(permission-restricted `~` path) and are unrelated to the CDK bump.
---------
Co-authored-by: sarayev <sarayev@amazon.com>
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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows - #64707
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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
These POSIX open-flag names have no macro in the Windows C runtime, so they were missing from fs.constants on Windows and got silently dropped when passed to fs.open(). libuv already honors the underlying flags (FILE_FLAG_WRITE_THROUGH for sync, FILE_FLAG_NO_BUFFERING for direct), so this just exposes the constants under their portable names wired to libuv's values.
Portable code requesting synchronized or unbuffered I/O now works on Windows instead of losing the flag.
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3171100
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
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Codecov Report
✅ All modified and coverable lines are covered by tests.

✅ Project coverage is 90.12%. Comparing base (874e96e) to head (3171100).
⚠️ Report is 496 commits behind head on main.
Additional details and impacted files
@@ Coverage Diff @@## main #64707 +/- ##
==========================================
- Coverage 90.24% 90.12% -0.13% 
==========================================
Files 739 741 +2 Lines 241676 242251 +575 Branches 45544 45621 +77 ==========================================
+ Hits 218102 218329 +227 - Misses 15101 15427 +326 - Partials 8473 8495 +22 
Files with missing linesCoverage Δ
src/node_constants.cc99.71% <ø> (ø)
... and 104 files with indirect coverage changes
 🚀 New features to boost your workflow: 
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.
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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
81bdb47
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
PR-URL: #64707
Reviewed-By: Stefan Stojanovic <stefan.stojanovic@janeasystems.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
aduh95 pushed a commit
that referenced
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Aug 25, 2026
@PickBas@aduh95
src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
83a7949
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
PR-URL: #64707
Reviewed-By: Stefan Stojanovic <stefan.stojanovic@janeasystems.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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@svidgen@sarayev
chore: bump aws-cdk-lib to ^2.254.0 (fixes Windows Node EINVAL) (#3317)
9db547a
## Summary
Raises the `aws-cdk-lib` peer dependency floor from `^2.234.1` to
`^2.254.0` across all packages and refreshes the lockfile (now resolves
`aws-cdk-lib` to `2.267.0`).
## Why
On Windows with recent Node.js releases, CDK asset fingerprinting
crashes with `EINVAL` because `fs.openSync` is invoked with the `O_SYNC
| O_DSYNC` flag combination, which Node rejects on that platform. This
makes the Windows unit/coverage job fully red while Linux and macOS stay
green.
The crash was fixed upstream in aws-cdk and first released in
`aws-cdk-lib` 2.254.0. Bumping the floor to `^2.254.0` pulls in the fix.
- Upstream issue: aws/aws-cdk#38692
- Upstream fix (PR): aws/aws-cdk#37802 (released
in `aws-cdk-lib` 2.254.0)
- Related Node.js change: nodejs/node#64707
## What changed
- Bumped `aws-cdk-lib` from `^2.234.1` to `^2.254.0` in all 16
`packages/*/package.json` files (peer/dep/devDep as applicable). No
other dependencies changed.
- Refreshed `package-lock.json` — `aws-cdk-lib` now resolves to
`2.267.0` (latest within the range), deduped across the workspace.
- Updated `packages/create-amplify/src/default_packages.json` so the
default `aws-cdk-lib` pin for new projects matches the lockfile
(generated via `npm run update:create-amplify-deps`).
- Added a changeset (patch bump for affected published packages).
## How tested
- `npm install` + `npm run build` — clean.
- Ran the unit/integration suites. All CDK-heavy suites pass (in-memory
CDK synthesis integration tests, `auth-construct`, `backend-storage`,
`backend-data`): 280/280.
- No CDK-generated construct snapshots/logical IDs changed as a result
of the bump, so no snapshot regeneration was needed.
- `check:package-lock`, `check:package-json`, `check:api`, and prettier
all pass.
The only local failures were in `platform-core` config/telemetry tests
that write to a real user-profile path; these fail identically with and
without this change in the local sandboxed environment
(permission-restricted `~` path) and are unrelated to the CDK bump.
---------
Co-authored-by: sarayev <sarayev@amazon.com>
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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows - #64707
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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
These POSIX open-flag names have no macro in the Windows C runtime, so they were missing from fs.constants on Windows and got silently dropped when passed to fs.open(). libuv already honors the underlying flags (FILE_FLAG_WRITE_THROUGH for sync, FILE_FLAG_NO_BUFFERING for direct), so this just exposes the constants under their portable names wired to libuv's values.
Portable code requesting synchronized or unbuffered I/O now works on Windows instead of losing the flag.
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3171100
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
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Codecov Report
✅ All modified and coverable lines are covered by tests.

✅ Project coverage is 90.12%. Comparing base (874e96e) to head (3171100).
⚠️ Report is 496 commits behind head on main.
Additional details and impacted files
@@ Coverage Diff @@## main #64707 +/- ##
==========================================
- Coverage 90.24% 90.12% -0.13% 
==========================================
Files 739 741 +2 Lines 241676 242251 +575 Branches 45544 45621 +77 ==========================================
+ Hits 218102 218329 +227 - Misses 15101 15427 +326 - Partials 8473 8495 +22 
Files with missing linesCoverage Δ
src/node_constants.cc99.71% <ø> (ø)
... and 104 files with indirect coverage changes
 🚀 New features to boost your workflow: 
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.
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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
81bdb47
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
PR-URL: #64707
Reviewed-By: Stefan Stojanovic <stefan.stojanovic@janeasystems.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
aduh95 pushed a commit
that referenced
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@PickBas@aduh95
src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
83a7949
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
PR-URL: #64707
Reviewed-By: Stefan Stojanovic <stefan.stojanovic@janeasystems.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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Sep 1, 2026
@svidgen@sarayev
chore: bump aws-cdk-lib to ^2.254.0 (fixes Windows Node EINVAL) (#3317)
9db547a
## Summary
Raises the `aws-cdk-lib` peer dependency floor from `^2.234.1` to
`^2.254.0` across all packages and refreshes the lockfile (now resolves
`aws-cdk-lib` to `2.267.0`).
## Why
On Windows with recent Node.js releases, CDK asset fingerprinting
crashes with `EINVAL` because `fs.openSync` is invoked with the `O_SYNC
| O_DSYNC` flag combination, which Node rejects on that platform. This
makes the Windows unit/coverage job fully red while Linux and macOS stay
green.
The crash was fixed upstream in aws-cdk and first released in
`aws-cdk-lib` 2.254.0. Bumping the floor to `^2.254.0` pulls in the fix.
- Upstream issue: aws/aws-cdk#38692
- Upstream fix (PR): aws/aws-cdk#37802 (released
in `aws-cdk-lib` 2.254.0)
- Related Node.js change: nodejs/node#64707
## What changed
- Bumped `aws-cdk-lib` from `^2.234.1` to `^2.254.0` in all 16
`packages/*/package.json` files (peer/dep/devDep as applicable). No
other dependencies changed.
- Refreshed `package-lock.json` — `aws-cdk-lib` now resolves to
`2.267.0` (latest within the range), deduped across the workspace.
- Updated `packages/create-amplify/src/default_packages.json` so the
default `aws-cdk-lib` pin for new projects matches the lockfile
(generated via `npm run update:create-amplify-deps`).
- Added a changeset (patch bump for affected published packages).
## How tested
- `npm install` + `npm run build` — clean.
- Ran the unit/integration suites. All CDK-heavy suites pass (in-memory
CDK synthesis integration tests, `auth-construct`, `backend-storage`,
`backend-data`): 280/280.
- No CDK-generated construct snapshots/logical IDs changed as a result
of the bump, so no snapshot regeneration was needed.
- `check:package-lock`, `check:package-json`, `check:api`, and prettier
all pass.
The only local failures were in `platform-core` config/telemetry tests
that write to a real user-profile path; these fail identically with and
without this change in the local sandboxed environment
(permission-restricted `~` path) and are unrelated to the CDK bump.
---------
Co-authored-by: sarayev <sarayev@amazon.com>
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
These POSIX open-flag names have no macro in the Windows C runtime, so they were missing from fs.constants on Windows and got silently dropped when passed to fs.open(). libuv already honors the underlying flags (FILE_FLAG_WRITE_THROUGH for sync, FILE_FLAG_NO_BUFFERING for direct), so this just exposes the constants under their portable names wired to libuv's values.
Portable code requesting synchronized or unbuffered I/O now works on Windows instead of losing the flag.
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✅ All modified and coverable lines are covered by tests.

✅ Project coverage is 90.12%. Comparing base (874e96e) to head (3171100).
⚠️ Report is 496 commits behind head on main.
Additional details and impacted files
@@ Coverage Diff @@## main #64707 +/- ##
==========================================
- Coverage 90.24% 90.12% -0.13% 
==========================================
Files 739 741 +2 Lines 241676 242251 +575 Branches 45544 45621 +77 ==========================================
+ Hits 218102 218329 +227 - Misses 15101 15427 +326 - Partials 8473 8495 +22 
Files with missing linesCoverage Δ
src/node_constants.cc99.71% <ø> (ø)
... and 104 files with indirect coverage changes
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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
81bdb47
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
PR-URL: #64707
Reviewed-By: Stefan Stojanovic <stefan.stojanovic@janeasystems.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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@PickBas@aduh95
src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
83a7949
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
PR-URL: #64707
Reviewed-By: Stefan Stojanovic <stefan.stojanovic@janeasystems.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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Sep 1, 2026
@svidgen@sarayev
chore: bump aws-cdk-lib to ^2.254.0 (fixes Windows Node EINVAL) (#3317)
9db547a
## Summary
Raises the `aws-cdk-lib` peer dependency floor from `^2.234.1` to
`^2.254.0` across all packages and refreshes the lockfile (now resolves
`aws-cdk-lib` to `2.267.0`).
## Why
On Windows with recent Node.js releases, CDK asset fingerprinting
crashes with `EINVAL` because `fs.openSync` is invoked with the `O_SYNC
| O_DSYNC` flag combination, which Node rejects on that platform. This
makes the Windows unit/coverage job fully red while Linux and macOS stay
green.
The crash was fixed upstream in aws-cdk and first released in
`aws-cdk-lib` 2.254.0. Bumping the floor to `^2.254.0` pulls in the fix.
- Upstream issue: aws/aws-cdk#38692
- Upstream fix (PR): aws/aws-cdk#37802 (released
in `aws-cdk-lib` 2.254.0)
- Related Node.js change: nodejs/node#64707
## What changed
- Bumped `aws-cdk-lib` from `^2.234.1` to `^2.254.0` in all 16
`packages/*/package.json` files (peer/dep/devDep as applicable). No
other dependencies changed.
- Refreshed `package-lock.json` — `aws-cdk-lib` now resolves to
`2.267.0` (latest within the range), deduped across the workspace.
- Updated `packages/create-amplify/src/default_packages.json` so the
default `aws-cdk-lib` pin for new projects matches the lockfile
(generated via `npm run update:create-amplify-deps`).
- Added a changeset (patch bump for affected published packages).
## How tested
- `npm install` + `npm run build` — clean.
- Ran the unit/integration suites. All CDK-heavy suites pass (in-memory
CDK synthesis integration tests, `auth-construct`, `backend-storage`,
`backend-data`): 280/280.
- No CDK-generated construct snapshots/logical IDs changed as a result
of the bump, so no snapshot regeneration was needed.
- `check:package-lock`, `check:package-json`, `check:api`, and prettier
all pass.
The only local failures were in `platform-core` config/telemetry tests
that write to a real user-profile path; these fail identically with and
without this change in the local sandboxed environment
(permission-restricted `~` path) and are unrelated to the CDK bump.
---------
Co-authored-by: sarayev <sarayev@amazon.com>
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
These POSIX open-flag names have no macro in the Windows C runtime, so they were missing from fs.constants on Windows and got silently dropped when passed to fs.open(). libuv already honors the underlying flags (FILE_FLAG_WRITE_THROUGH for sync, FILE_FLAG_NO_BUFFERING for direct), so this just exposes the constants under their portable names wired to libuv's values.
Portable code requesting synchronized or unbuffered I/O now works on Windows instead of losing the flag.
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3171100
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
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Codecov Report
✅ All modified and coverable lines are covered by tests.

✅ Project coverage is 90.12%. Comparing base (874e96e) to head (3171100).
⚠️ Report is 496 commits behind head on main.
Additional details and impacted files
@@ Coverage Diff @@## main #64707 +/- ##
==========================================
- Coverage 90.24% 90.12% -0.13% 
==========================================
Files 739 741 +2 Lines 241676 242251 +575 Branches 45544 45621 +77 ==========================================
+ Hits 218102 218329 +227 - Misses 15101 15427 +326 - Partials 8473 8495 +22 
Files with missing linesCoverage Δ
src/node_constants.cc99.71% <ø> (ø)
... and 104 files with indirect coverage changes
 🚀 New features to boost your workflow: 
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.
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@PickBas@aduh95
src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
81bdb47
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
PR-URL: #64707
Reviewed-By: Stefan Stojanovic <stefan.stojanovic@janeasystems.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
aduh95 pushed a commit
that referenced
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Aug 25, 2026
@PickBas@aduh95
src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
83a7949
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
PR-URL: #64707
Reviewed-By: Stefan Stojanovic <stefan.stojanovic@janeasystems.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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that referenced
this pull request
Sep 1, 2026
@svidgen@sarayev
chore: bump aws-cdk-lib to ^2.254.0 (fixes Windows Node EINVAL) (#3317)
9db547a
## Summary
Raises the `aws-cdk-lib` peer dependency floor from `^2.234.1` to
`^2.254.0` across all packages and refreshes the lockfile (now resolves
`aws-cdk-lib` to `2.267.0`).
## Why
On Windows with recent Node.js releases, CDK asset fingerprinting
crashes with `EINVAL` because `fs.openSync` is invoked with the `O_SYNC
| O_DSYNC` flag combination, which Node rejects on that platform. This
makes the Windows unit/coverage job fully red while Linux and macOS stay
green.
The crash was fixed upstream in aws-cdk and first released in
`aws-cdk-lib` 2.254.0. Bumping the floor to `^2.254.0` pulls in the fix.
- Upstream issue: aws/aws-cdk#38692
- Upstream fix (PR): aws/aws-cdk#37802 (released
in `aws-cdk-lib` 2.254.0)
- Related Node.js change: nodejs/node#64707
## What changed
- Bumped `aws-cdk-lib` from `^2.234.1` to `^2.254.0` in all 16
`packages/*/package.json` files (peer/dep/devDep as applicable). No
other dependencies changed.
- Refreshed `package-lock.json` — `aws-cdk-lib` now resolves to
`2.267.0` (latest within the range), deduped across the workspace.
- Updated `packages/create-amplify/src/default_packages.json` so the
default `aws-cdk-lib` pin for new projects matches the lockfile
(generated via `npm run update:create-amplify-deps`).
- Added a changeset (patch bump for affected published packages).
## How tested
- `npm install` + `npm run build` — clean.
- Ran the unit/integration suites. All CDK-heavy suites pass (in-memory
CDK synthesis integration tests, `auth-construct`, `backend-storage`,
`backend-data`): 280/280.
- No CDK-generated construct snapshots/logical IDs changed as a result
of the bump, so no snapshot regeneration was needed.
- `check:package-lock`, `check:package-json`, `check:api`, and prettier
all pass.
The only local failures were in `platform-core` config/telemetry tests
that write to a real user-profile path; these fail identically with and
without this change in the local sandboxed environment
(permission-restricted `~` path) and are unrelated to the CDK bump.
---------
Co-authored-by: sarayev <sarayev@amazon.com>
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows - #64707
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JaneaSystems:win-fix-fs-constants
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Merged
src: define O_SYNC, O_DSYNC and O_DIRECT on Windows#64707
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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
These POSIX open-flag names have no macro in the Windows C runtime, so they were missing from fs.constants on Windows and got silently dropped when passed to fs.open(). libuv already honors the underlying flags (FILE_FLAG_WRITE_THROUGH for sync, FILE_FLAG_NO_BUFFERING for direct), so this just exposes the constants under their portable names wired to libuv's values.
Portable code requesting synchronized or unbuffered I/O now works on Windows instead of losing the flag.
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3171100
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
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Codecov Report
✅ All modified and coverable lines are covered by tests.

✅ Project coverage is 90.12%. Comparing base (874e96e) to head (3171100).
⚠️ Report is 496 commits behind head on main.
Additional details and impacted files
@@ Coverage Diff @@## main #64707 +/- ##
==========================================
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Files 739 741 +2 Lines 241676 242251 +575 Branches 45544 45621 +77 ==========================================
+ Hits 218102 218329 +227 - Misses 15101 15427 +326 - Partials 8473 8495 +22 
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... and 104 files with indirect coverage changes
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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
81bdb47
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
PR-URL: #64707
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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
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PR-URL: #64707
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Reviewed-By: James M Snell <jasnell@gmail.com>
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chore: bump aws-cdk-lib to ^2.254.0 (fixes Windows Node EINVAL) (#3317)
9db547a
## Summary
Raises the `aws-cdk-lib` peer dependency floor from `^2.234.1` to
`^2.254.0` across all packages and refreshes the lockfile (now resolves
`aws-cdk-lib` to `2.267.0`).
## Why
On Windows with recent Node.js releases, CDK asset fingerprinting
crashes with `EINVAL` because `fs.openSync` is invoked with the `O_SYNC
| O_DSYNC` flag combination, which Node rejects on that platform. This
makes the Windows unit/coverage job fully red while Linux and macOS stay
green.
The crash was fixed upstream in aws-cdk and first released in
`aws-cdk-lib` 2.254.0. Bumping the floor to `^2.254.0` pulls in the fix.
- Upstream issue: aws/aws-cdk#38692
- Upstream fix (PR): aws/aws-cdk#37802 (released
in `aws-cdk-lib` 2.254.0)
- Related Node.js change: nodejs/node#64707
## What changed
- Bumped `aws-cdk-lib` from `^2.234.1` to `^2.254.0` in all 16
`packages/*/package.json` files (peer/dep/devDep as applicable). No
other dependencies changed.
- Refreshed `package-lock.json` — `aws-cdk-lib` now resolves to
`2.267.0` (latest within the range), deduped across the workspace.
- Updated `packages/create-amplify/src/default_packages.json` so the
default `aws-cdk-lib` pin for new projects matches the lockfile
(generated via `npm run update:create-amplify-deps`).
- Added a changeset (patch bump for affected published packages).
## How tested
- `npm install` + `npm run build` — clean.
- Ran the unit/integration suites. All CDK-heavy suites pass (in-memory
CDK synthesis integration tests, `auth-construct`, `backend-storage`,
`backend-data`): 280/280.
- No CDK-generated construct snapshots/logical IDs changed as a result
of the bump, so no snapshot regeneration was needed.
- `check:package-lock`, `check:package-json`, `check:api`, and prettier
all pass.
The only local failures were in `platform-core` config/telemetry tests
that write to a real user-profile path; these fail identically with and
without this change in the local sandboxed environment
(permission-restricted `~` path) and are unrelated to the CDK bump.
---------
Co-authored-by: sarayev <sarayev@amazon.com>
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
These POSIX open-flag names have no macro in the Windows C runtime, so they were missing from fs.constants on Windows and got silently dropped when passed to fs.open(). libuv already honors the underlying flags (FILE_FLAG_WRITE_THROUGH for sync, FILE_FLAG_NO_BUFFERING for direct), so this just exposes the constants under their portable names wired to libuv's values.
Portable code requesting synchronized or unbuffered I/O now works on Windows instead of losing the flag.
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✅ All modified and coverable lines are covered by tests.

✅ Project coverage is 90.12%. Comparing base (874e96e) to head (3171100).
⚠️ Report is 496 commits behind head on main.
Additional details and impacted files
@@ Coverage Diff @@## main #64707 +/- ##
==========================================
- Coverage 90.24% 90.12% -0.13% 
==========================================
Files 739 741 +2 Lines 241676 242251 +575 Branches 45544 45621 +77 ==========================================
+ Hits 218102 218329 +227 - Misses 15101 15427 +326 - Partials 8473 8495 +22 
Files with missing linesCoverage Δ
src/node_constants.cc99.71% <ø> (ø)
... and 104 files with indirect coverage changes
 🚀 New features to boost your workflow: 
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.
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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
81bdb47
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
PR-URL: #64707
Reviewed-By: Stefan Stojanovic <stefan.stojanovic@janeasystems.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
aduh95 pushed a commit
that referenced
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@PickBas@aduh95
src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
83a7949
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
PR-URL: #64707
Reviewed-By: Stefan Stojanovic <stefan.stojanovic@janeasystems.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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Sep 1, 2026
@svidgen@sarayev
chore: bump aws-cdk-lib to ^2.254.0 (fixes Windows Node EINVAL) (#3317)
9db547a
## Summary
Raises the `aws-cdk-lib` peer dependency floor from `^2.234.1` to
`^2.254.0` across all packages and refreshes the lockfile (now resolves
`aws-cdk-lib` to `2.267.0`).
## Why
On Windows with recent Node.js releases, CDK asset fingerprinting
crashes with `EINVAL` because `fs.openSync` is invoked with the `O_SYNC
| O_DSYNC` flag combination, which Node rejects on that platform. This
makes the Windows unit/coverage job fully red while Linux and macOS stay
green.
The crash was fixed upstream in aws-cdk and first released in
`aws-cdk-lib` 2.254.0. Bumping the floor to `^2.254.0` pulls in the fix.
- Upstream issue: aws/aws-cdk#38692
- Upstream fix (PR): aws/aws-cdk#37802 (released
in `aws-cdk-lib` 2.254.0)
- Related Node.js change: nodejs/node#64707
## What changed
- Bumped `aws-cdk-lib` from `^2.234.1` to `^2.254.0` in all 16
`packages/*/package.json` files (peer/dep/devDep as applicable). No
other dependencies changed.
- Refreshed `package-lock.json` — `aws-cdk-lib` now resolves to
`2.267.0` (latest within the range), deduped across the workspace.
- Updated `packages/create-amplify/src/default_packages.json` so the
default `aws-cdk-lib` pin for new projects matches the lockfile
(generated via `npm run update:create-amplify-deps`).
- Added a changeset (patch bump for affected published packages).
## How tested
- `npm install` + `npm run build` — clean.
- Ran the unit/integration suites. All CDK-heavy suites pass (in-memory
CDK synthesis integration tests, `auth-construct`, `backend-storage`,
`backend-data`): 280/280.
- No CDK-generated construct snapshots/logical IDs changed as a result
of the bump, so no snapshot regeneration was needed.
- `check:package-lock`, `check:package-json`, `check:api`, and prettier
all pass.
The only local failures were in `platform-core` config/telemetry tests
that write to a real user-profile path; these fail identically with and
without this change in the local sandboxed environment
(permission-restricted `~` path) and are unrelated to the CDK bump.
---------
Co-authored-by: sarayev <sarayev@amazon.com>
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injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
These POSIX open-flag names have no macro in the Windows C runtime, so they were missing from fs.constants on Windows and got silently dropped when passed to fs.open(). libuv already honors the underlying flags (FILE_FLAG_WRITE_THROUGH for sync, FILE_FLAG_NO_BUFFERING for direct), so this just exposes the constants under their portable names wired to libuv's values.
Portable code requesting synchronized or unbuffered I/O now works on Windows instead of losing the flag.
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Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
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✅ Project coverage is 90.12%. Comparing base (874e96e) to head (3171100).
⚠️ Report is 496 commits behind head on main.
Additional details and impacted files
@@ Coverage Diff @@## main #64707 +/- ##
==========================================
- Coverage 90.24% 90.12% -0.13% 
==========================================
Files 739 741 +2 Lines 241676 242251 +575 Branches 45544 45621 +77 ==========================================
+ Hits 218102 218329 +227 - Misses 15101 15427 +326 - Partials 8473 8495 +22 
Files with missing linesCoverage Δ
src/node_constants.cc99.71% <ø> (ø)
... and 104 files with indirect coverage changes
 🚀 New features to boost your workflow: 
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.
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src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
81bdb47
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
PR-URL: #64707
Reviewed-By: Stefan Stojanovic <stefan.stojanovic@janeasystems.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
aduh95 pushed a commit
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@PickBas@aduh95
src: define O_SYNC, O_DSYNC and O_DIRECT on Windows
83a7949
Signed-off-by: Kirill Saied <sayed.kirill@gmail.com>
PR-URL: #64707
Reviewed-By: Stefan Stojanovic <stefan.stojanovic@janeasystems.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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Sep 1, 2026
@svidgen@sarayev
chore: bump aws-cdk-lib to ^2.254.0 (fixes Windows Node EINVAL) (#3317)
9db547a
## Summary
Raises the `aws-cdk-lib` peer dependency floor from `^2.234.1` to
`^2.254.0` across all packages and refreshes the lockfile (now resolves
`aws-cdk-lib` to `2.267.0`).
## Why
On Windows with recent Node.js releases, CDK asset fingerprinting
crashes with `EINVAL` because `fs.openSync` is invoked with the `O_SYNC
| O_DSYNC` flag combination, which Node rejects on that platform. This
makes the Windows unit/coverage job fully red while Linux and macOS stay
green.
The crash was fixed upstream in aws-cdk and first released in
`aws-cdk-lib` 2.254.0. Bumping the floor to `^2.254.0` pulls in the fix.
- Upstream issue: aws/aws-cdk#38692
- Upstream fix (PR): aws/aws-cdk#37802 (released
in `aws-cdk-lib` 2.254.0)
- Related Node.js change: nodejs/node#64707
## What changed
- Bumped `aws-cdk-lib` from `^2.234.1` to `^2.254.0` in all 16
`packages/*/package.json` files (peer/dep/devDep as applicable). No
other dependencies changed.
- Refreshed `package-lock.json` — `aws-cdk-lib` now resolves to
`2.267.0` (latest within the range), deduped across the workspace.
- Updated `packages/create-amplify/src/default_packages.json` so the
default `aws-cdk-lib` pin for new projects matches the lockfile
(generated via `npm run update:create-amplify-deps`).
- Added a changeset (patch bump for affected published packages).
## How tested
- `npm install` + `npm run build` — clean.
- Ran the unit/integration suites. All CDK-heavy suites pass (in-memory
CDK synthesis integration tests, `auth-construct`, `backend-storage`,
`backend-data`): 280/280.
- No CDK-generated construct snapshots/logical IDs changed as a result
of the bump, so no snapshot regeneration was needed.
- `check:package-lock`, `check:package-json`, `check:api`, and prettier
all pass.
The only local failures were in `platform-core` config/telemetry tests
that write to a real user-profile path; these fail identically with and
without this change in the local sandboxed environment
(permission-restricted `~` path) and are unrelated to the CDK bump.
---------
Co-authored-by: sarayev <sarayev@amazon.com>
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@jasnelljasnelljasnell approved these changes
@StefanStojanovicStefanStojanovicStefanStojanovic approved these changes

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