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= Noto CJK Variable Fonts <!-- The name of your change proposal --> = | = Noto CJK Variable Fonts <!-- The name of your change proposal --> = | ||
== Summary == | == Summary == | ||
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== Current status == | == Current status == | ||
[[Category: | [[Category:ChangeAcceptedF38]] | ||
<!-- When your change proposal page is completed and ready for review and announcement --> | <!-- When your change proposal page is completed and ready for review and announcement --> | ||
<!-- remove Category:ChangePageIncomplete and change it to Category:ChangeReadyForWrangler --> | <!-- remove Category:ChangePageIncomplete and change it to Category:ChangeReadyForWrangler --> | ||
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ON_QA -> change is fully code complete | ON_QA -> change is fully code complete | ||
--> | --> | ||
* FESCo issue: | * [https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/thread/KLV7Z2QMHFORV3JT5NFK37LVCAKJOA7Q/ devel thread] | ||
* Tracker bug: | * FESCo issue: [https://pagure.io/fesco/issue/2938 #2938] | ||
* Release notes tracker: | * Tracker bug: [https://bugzilla.redhat.com/show_bug.cgi?id=2164514 #2164514] | ||
* Release notes tracker: [https://pagure.io/fedora-docs/release-notes/issue/959 #959] | |||
== Detailed Description == | == Detailed Description == | ||
In order to reduce the font size in Noto CJK fonts, we plan to switch to use the variable fonts by default. | In order to reduce the font size in Noto CJK fonts, we plan to switch to use the variable fonts by default. | ||
# Split the google-noto-cjk-fonts package into google-noto-cjk | # Split the google-noto-cjk-fonts package into google-noto-sans-cjk-fonts and google-noto-serif-cjk-fonts, and provide the variable fonts in google-noto-sans-cjk-vf-fonts and google-noto-serif-cjk-vf-fonts. | ||
# Drop several sub packages which are not installed by default from the google-noto-cjk-fonts package. | # Drop several sub packages which are not installed by default from the google-noto-cjk-fonts package. | ||
## Like google-noto-sans-cjk-*-fonts, google-noto-sans-*-fonts, google-noto-sans-mono-cjk-*-fonts, google-noto-serif-cjk-*-fonts and google-noto-serif-*-fonts | ## Like google-noto-sans-cjk-*-fonts, google-noto-sans-*-fonts, google-noto-sans-mono-cjk-*-fonts, google-noto-serif-cjk-*-fonts and google-noto-serif-*-fonts | ||
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== Benefit to Fedora == | == Benefit to Fedora == | ||
The variable fonts will reduce the disk space usage and | The variable fonts will reduce the disk space usage and live image size compared to the static fonts. | ||
{| class="wikitable" | |||
|+ RPM Size | |||
|- | |||
! Size (bytes) !! Noto Sans CJK !! Noto Serif CJK | |||
|- | |||
| Static Fonts || 130674365 || 181621033 | |||
|- | |||
| Variable Fonts || 64613100 || 56924710 | |||
|} | |||
== Scope == | == Scope == | ||
| Line 58: | Line 67: | ||
** Retire google-noto-cjk-fonts in Fedora rawhide | ** Retire google-noto-cjk-fonts in Fedora rawhide | ||
** Switch to install variable fonts by default in fedora-comps and langpacks | ** Switch to install variable fonts by default in fedora-comps and langpacks | ||
** Submit pull request to lorax templates to use google-noto-sans-cjk-fonts in the boot.iso | |||
* Other developers: <!-- REQUIRED FOR SYSTEM WIDE CHANGES --> | * Other developers: <!-- REQUIRED FOR SYSTEM WIDE CHANGES --> | ||
| Line 64: | Line 74: | ||
<!-- Does this feature require coordination with release engineering (e.g. changes to installer image generation or update package delivery)? Is a mass rebuild required? include a link to the releng issue. | <!-- Does this feature require coordination with release engineering (e.g. changes to installer image generation or update package delivery)? Is a mass rebuild required? include a link to the releng issue. | ||
The issue is required to be filed prior to feature submission, to ensure that someone is on board to do any process development work and testing and that all changes make it into the pipeline; a bullet point in a change is not sufficient communication --> | The issue is required to be filed prior to feature submission, to ensure that someone is on board to do any process development work and testing and that all changes make it into the pipeline; a bullet point in a change is not sufficient communication --> | ||
* Policies and guidelines: N/A (not needed for this Change) <!-- REQUIRED FOR SYSTEM WIDE CHANGES --> | * Policies and guidelines: N/A (not needed for this Change) <!-- REQUIRED FOR SYSTEM WIDE CHANGES --> | ||
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== Upgrade/compatibility impact == | == Upgrade/compatibility impact == | ||
When upgrade, the | When upgrade from Fedora 37, the google-noto-sans-cjk-vf-fonts package will replace the google-noto-sans-cjk-ttc-fonts package, and the google-noto-serif-cjk-vf-fonts package will replace the google-noto-serif-cjk-ttc-fonts package. | ||
== How To Test == | == How To Test == | ||
* Please upgrade to Fedora 38 or rawhide to get the latest fonts | * Please upgrade to Fedora 38 or rawhide to get the latest fonts | ||
* | * Please check the google-noto-sans-cjk-vf-fonts package is installed by default | ||
** Check the google-noto-sans-cjk-ttc-fonts and google-noto-serif-cjk-ttc-fonts packages are replaced | ** With CJK locale, the google-noto-serif-cjk-vf-fonts is also installed by default | ||
* Then use CJK | ** Check the google-noto-sans-cjk-ttc-fonts and google-noto-serif-cjk-ttc-fonts packages in Fedora 37 are replaced automatically in CJK locale | ||
* Then use CJK locale to check if the new fonts have any problem | |||
== User Experience == | == User Experience == | ||
This new variable fonts will reduce the disk space usage and | This new variable fonts will reduce the disk space usage and live image size. | ||
== Dependencies == | == Dependencies == | ||
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== Contingency Plan == | == Contingency Plan == | ||
* Contingency mechanism: Use the static fonts by default - google-noto-cjk | * Contingency mechanism: Use the static fonts by default - google-noto-sans-cjk-fonts and google-noto-serif-cjk-fonts | ||
* Contingency deadline: N/A (not a System Wide Change) <!-- REQUIRED FOR SYSTEM WIDE CHANGES --> | * Contingency deadline: N/A (not a System Wide Change) <!-- REQUIRED FOR SYSTEM WIDE CHANGES --> | ||
* Blocks release? N/A (not a System Wide Change), Yes/No <!-- REQUIRED FOR SYSTEM WIDE CHANGES --> | * Blocks release? N/A (not a System Wide Change), Yes/No <!-- REQUIRED FOR SYSTEM WIDE CHANGES --> | ||
| Line 108: | Line 117: | ||
== Release Notes == | == Release Notes == | ||
This new variable fonts will reduce the disk space usage and | This new variable fonts will reduce the disk space usage and live image size. | ||
Latest revision as of 07:05, 20 February 2023
Noto CJK Variable Fonts
Summary
Switch the default Noto CJK fonts for Chinese, Japanese and Korean from static to variable fonts.
Owner
- Name: Peng Wu
- Email: pwu@redhat.com
Current status
- Targeted release: Fedora Linux 38
- Last updated: 2023-02-20
- devel thread
- FESCo issue: #2938
- Tracker bug: #2164514
- Release notes tracker: #959
Detailed Description
In order to reduce the font size in Noto CJK fonts, we plan to switch to use the variable fonts by default.
- Split the google-noto-cjk-fonts package into google-noto-sans-cjk-fonts and google-noto-serif-cjk-fonts, and provide the variable fonts in google-noto-sans-cjk-vf-fonts and google-noto-serif-cjk-vf-fonts.
- Drop several sub packages which are not installed by default from the google-noto-cjk-fonts package.
- Like google-noto-sans-cjk-*-fonts, google-noto-sans-*-fonts, google-noto-sans-mono-cjk-*-fonts, google-noto-serif-cjk-*-fonts and google-noto-serif-*-fonts
- Install the Noto CJK Variable Fonts by default.
Fedora Copr for testing: https://copr.fedorainfracloud.org/coprs/pwu/noto-cjk/
Feedback
Benefit to Fedora
The variable fonts will reduce the disk space usage and live image size compared to the static fonts.
| Size (bytes) | Noto Sans CJK | Noto Serif CJK |
|---|---|---|
| Static Fonts | 130674365 | 181621033 |
| Variable Fonts | 64613100 | 56924710 |
Scope
- Proposal owners:
- Package four font packages for Noto CJK fonts
- Retire google-noto-cjk-fonts in Fedora rawhide
- Switch to install variable fonts by default in fedora-comps and langpacks
- Submit pull request to lorax templates to use google-noto-sans-cjk-fonts in the boot.iso
- Other developers:
- Release engineering: #Releng issue number
- Policies and guidelines: N/A (not needed for this Change)
- Trademark approval: N/A (not needed for this Change)
- Alignment with Objectives:
Upgrade/compatibility impact
When upgrade from Fedora 37, the google-noto-sans-cjk-vf-fonts package will replace the google-noto-sans-cjk-ttc-fonts package, and the google-noto-serif-cjk-vf-fonts package will replace the google-noto-serif-cjk-ttc-fonts package.
How To Test
- Please upgrade to Fedora 38 or rawhide to get the latest fonts
- Please check the google-noto-sans-cjk-vf-fonts package is installed by default
- With CJK locale, the google-noto-serif-cjk-vf-fonts is also installed by default
- Check the google-noto-sans-cjk-ttc-fonts and google-noto-serif-cjk-ttc-fonts packages in Fedora 37 are replaced automatically in CJK locale
- Then use CJK locale to check if the new fonts have any problem
User Experience
This new variable fonts will reduce the disk space usage and live image size.
Dependencies
Contingency Plan
- Contingency mechanism: Use the static fonts by default - google-noto-sans-cjk-fonts and google-noto-serif-cjk-fonts
- Contingency deadline: N/A (not a System Wide Change)
- Blocks release? N/A (not a System Wide Change), Yes/No
Documentation
N/A (not a System Wide Change)
Release Notes
This new variable fonts will reduce the disk space usage and live image size.