feat: Show snowfall animation for holiday theme #15494

sehoon38 · 2025-12-23T21:39:53Z

Summary

Show Holiday snow animation

Details

When launched, show snow falling animation when user is using holiday theme.
Shows the snow animation if all of the following requirements are met

is holiday season (December or January)
the current theme is Holiday
terminal width is at least the width of Gemini short logo
user has not started a chat (excluding /theme command)
has not been 15 sec since the animation started

Related Issues

How to Validate

Pre-Merge Checklist

gemini-code-assist · 2025-12-23T21:40:10Z

Summary of Changes

Hello @sehoon38, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request enhances the Gemini CLI with a "Happy Holiday" feature, displaying a dynamic snow animation and holiday tree ASCII art in the header. This seasonal embellishment activates automatically during December and January, provided the user has selected the "Holiday" theme, the terminal window is wide enough, and no chat conversation is in progress. The change aims to bring a festive touch to the user experience during the holiday season.

Highlights

Holiday Animation: Introduces a festive snow animation and holiday tree ASCII art to the Gemini CLI header.
Conditional Activation: The holiday features are enabled only during December and January, when the "Holiday" theme is active, the terminal width is sufficient, and no chat session has begun.
New useSnowfall Hook: A new React hook, useSnowfall, was added to manage the animation logic and integrate holiday-themed ASCII art.
Test Coverage: New tests were added to Header.test.tsx to verify the rendering of holiday colors and trees during the holiday season.

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thejackluo · 2025-12-23T21:42:10Z

This is awesome

gemini-code-assist

Code Review

This pull request introduces a holiday-themed snow animation. My review focuses on a logic bug in date checking, issues with the new tests that will cause them to fail, and a performance concern in the animation rendering loop. These issues are of high severity and should be addressed to ensure the feature works correctly and efficiently.

packages/cli/src/ui/components/Header.test.tsx

packages/cli/src/ui/hooks/useSnowfall.ts

github-actions · 2025-12-23T21:43:18Z

Size Change: +3.76 kB (+0.02%)

Total Size: 22 MB

Filename	Size	Change
`./bundle/gemini.js`	22 MB	+3.76 kB (+0.02%)

ℹ️ View Unchanged

Filename	Size
`./bundle/sandbox-macos-permissive-closed.sb`	1.03 kB
`./bundle/sandbox-macos-permissive-open.sb`	890 B
`./bundle/sandbox-macos-permissive-proxied.sb`	1.31 kB
`./bundle/sandbox-macos-restrictive-closed.sb`	3.29 kB
`./bundle/sandbox-macos-restrictive-open.sb`	3.36 kB
`./bundle/sandbox-macos-restrictive-proxied.sb`	3.56 kB

_{compressed-size-action}

…op the animation after user enters a text

galz10 · 2025-12-26T17:43:09Z

/patch both

github-actions · 2025-12-26T17:43:26Z

✅ Patch workflow(s) dispatched successfully!

📋 Details:

Channels: stable,preview
Commit: 9cdb267ba5869b48bdfca9079e22b526fd757b3f
Workflows Created: 2

🔗 Track Progress:

Co-authored-by: Jack Wotherspoon <jackwoth@google.com>

github-actions · 2025-12-26T17:50:03Z

🚀 Patch PR Created!

📋 Patch Details:

Environment: prod
Channel: stable → will publish to npm tag latest
Commit: 9cdb267ba5869b48bdfca9079e22b526fd757b3f
Hotfix Branch: hotfix/v0.22.2/0.22.3/stable/cherry-pick-9cdb267/pr-15494
Hotfix PR: #15591

📝 Next Steps:

Review and approve the hotfix PR: #15591
Once merged, the patch release will automatically trigger
You'll receive updates here when the release completes

🔗 Track Progress:

View hotfix PR #15591

Co-authored-by: Jack Wotherspoon <jackwoth@google.com>

github-actions · 2025-12-26T17:50:17Z

🚀 Patch PR Created!

📋 Patch Details:

Environment: prod
Channel: preview → will publish to npm tag preview
Commit: 9cdb267ba5869b48bdfca9079e22b526fd757b3f
Hotfix Branch: hotfix/v0.23.0-preview.1/0.23.0-preview.2/preview/cherry-pick-9cdb267/pr-15494
Hotfix PR: #15592

📝 Next Steps:

Review and approve the hotfix PR: #15592
Once merged, the patch release will automatically trigger
You'll receive updates here when the release completes

🔗 Track Progress:

View hotfix PR #15592

github-actions · 2025-12-26T18:09:41Z

🚀 Patch Release Started!

📋 Release Details:

Environment: prod
Channel: stable → publishing to npm tag latest
Version: v0.22.2
Hotfix PR: Merged ✅
Release Branch: release/v0.22.2-pr-15494

⏳ Status: The patch release is now running. You'll receive another update when it completes.

🔗 Track Progress:

View release workflow

github-actions · 2025-12-26T18:09:42Z

🚀 Patch Release Started!

📋 Release Details:

Environment: prod
Channel: preview → publishing to npm tag preview
Version: v0.23.0-preview.1
Hotfix PR: Merged ✅
Release Branch: release/v0.23.0-preview.1-pr-15494

⏳ Status: The patch release is now running. You'll receive another update when it completes.

🔗 Track Progress:

View release workflow

github-actions · 2025-12-26T18:32:49Z

✅ Patch Release Complete!

📦 Release Details:

Version: 0.22.3
NPM Tag: latest
Channel: stable
Dry Run: false

🎉 Status: Your patch has been successfully released and published to npm!

📝 What's Available:

GitHub Release: View release v0.22.3
NPM Package: npm install @google/gemini-cli@latest

🔗 Links:

github-actions · 2025-12-26T18:39:26Z

✅ Patch Release Complete!

📦 Release Details:

Version: 0.23.0-preview.2
NPM Tag: preview
Channel: preview
Dry Run: false

🎉 Status: Your patch has been successfully released and published to npm!

📝 What's Available:

GitHub Release: View release v0.23.0-preview.2
NPM Package: npm install @google/gemini-cli@preview

🔗 Links:

sehoon38 added 2 commits December 23, 2025 14:09

Holiday logo

99b99fc

integrate with holiday theme

343b9d8

gemini-code-assist bot reviewed Dec 23, 2025

View reviewed changes

integrate with holiday theme. do not show snowfall in short width. st…

239139f

…op the animation after user enters a text

sehoon38 force-pushed the sehoon/holiday branch from 4370c48 to 239139f Compare December 23, 2025 21:58

sehoon38 added 3 commits December 23, 2025 17:19

stops snow animation after 15 sec

d52c704

add useSnowfall test

ffca0de

fix test

cd6983b

sehoon38 force-pushed the sehoon/holiday branch from ff5484e to cd6983b Compare December 23, 2025 22:32

when checking history, do not check for /theme

dd468df

sehoon38 marked this pull request as ready for review December 23, 2025 22:42

sehoon38 requested a review from a team as a code owner December 23, 2025 22:42

sehoon38 changed the title ~~feat: Gemini CLI Happy Holiday~~ feat: Gemini CLI show holiday animation Dec 23, 2025

sehoon38 changed the title ~~feat: Gemini CLI show holiday animation~~ feat: Show holiday animation Dec 23, 2025

sehoon38 changed the title ~~feat: Show holiday animation~~ feat: Show snowfall animation for holiday theme Dec 23, 2025

Merge branch 'main' into sehoon/holiday

202dc3a

bdmorgan approved these changes Dec 26, 2025

View reviewed changes

sehoon38 added this pull request to the merge queue Dec 26, 2025

github-merge-queue bot removed this pull request from the merge queue due to failed status checks Dec 26, 2025

sehoon38 added this pull request to the merge queue Dec 26, 2025

Merged via the queue into main with commit 9cdb267 Dec 26, 2025
32 of 33 checks passed

sehoon38 deleted the sehoon/holiday branch December 26, 2025 16:22

github-actions bot pushed a commit that referenced this pull request Dec 26, 2025

feat: Show snowfall animation for holiday theme (#15494)

13f2ed9

Co-authored-by: Jack Wotherspoon <jackwoth@google.com>

github-actions bot pushed a commit that referenced this pull request Dec 26, 2025

feat: Show snowfall animation for holiday theme (#15494)

07045e0

Co-authored-by: Jack Wotherspoon <jackwoth@google.com>

feat: Show snowfall animation for holiday theme #15494

feat: Show snowfall animation for holiday theme #15494

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sehoon38 commented Dec 23, 2025 • edited Loading Uh oh! There was an error while loading. Please reload this page.

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gemini-code-assist bot commented Dec 23, 2025

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sehoon38 commented Dec 23, 2025 •

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