Quarkus CLI does not display icons correctly

[ghost]

Describe the bug

When creating an app via Quarkus CLI the icons are not displayed as shown in the documentation.
In my terminal a white rectangle is shown instead.

Expected behavior

Icons are displayed correctly or if the terminal does not support this something else is used instead.

Actual behavior

Icons are not displayed correctly.

To Reproduce

Steps to reproduce the behavior:

1. quarkus create app

Screenshots

Environment

OS: Linux
Shell: Bash
Terminal: Konsole (KDE, https://konsole.kde.org/)

[quarkus-bot]

/cc @ebullient, @gsmet, @maxandersen

[maxandersen]

What os, shell and terminal are you using ?

[ghost]

OS: Linux
Shell: Bash
Terminal: Konsole (KDE, https://konsole.kde.org/)

[ghost]

And in xterm it looks like this :-)

[maxandersen]

Does your font have icons normally ?

[ghost]

Simple icons yes, but not Emojis. Tried to use different fonts with emojis:

• EmojiOne Color Font -> the icon for Maven is missing, only black & white
• Noto Emoji Font -> only black & white
• Twemoji Color Font -> only black & white

The problem is all of them are not suited to be used in a terminal (no fixed character width). And all of them are not colored but black & white.

[maxandersen]

Just to check - I assume you have Same issue with using mvn create plugin which is the same code ?

[ghost]

Not sure what you mean. This does not display any icons/emojis, just an error message:

[maxandersen]

I mean the way we thus far use maven to create projects:

'''

mvn io.quarkus:quarkus-maven-plugin:1.13.7.Final:create
-DprojectGroupId=org.acme
-DprojectArtifactId=getting-started
-DclassName="org.acme.getting.started.GreetingResource"
-Dpath="/hello"
cd getting-started
'''

How does that render its output on your setup?

[ghost]

Then I see the following output:

Note that after installing the Emoji fonts I see at least some of the emojis (in black & white). Not sure if there exists another font pack that is missing to get the other emojis, too.

[ghost]

Finally made some progress!

This is with the Gnome Terminal. Furthermore I installed ONLY the Noto Color Emoji font.

The icon for Maven 🧰 is still not working here.

There is also a missing space for some icons. This seem to be exactly the ones that have the FE0F appended (to indicate colored icon). See here for an explanation: https://en.opensuse.org/Emoji.
For a list of emojis with code points to be able to avoid the FE0F see here: https://unicode.org/Public/emoji/12.0/emoji-test.txt

Maybe we could replace the icons that are making problems with similar ones?

• Maven: 🧰 could be replaced by 💼 or 📦
• Quarkus: 🗃️ could be replaced by 💎, 👑, 🚀 etc. :-)
• Dockerfiles: 🛠️ could be replaced by 🐋 or 🐳
• Maven-Wrapper: 🛠️ could be replaced by 🔨 or 🔧

The suggested icons all work fine here.

[maxandersen]

make sense to choose better icons when available.

we do though expect users using "modern" terminals - sounds like your kconsole/xterm setup uses the absolute minimal terminal setup :)

[ghost]

In WSL it looks the following:

The mentioned alternative Emojis from the comment above would all work in WSL out-of-the-box (only B&W here).

[ebullient]

The emojis are rendered w/in common code in devtools/codestarts...

[ebullient]

To clarify, you're asking to work backwards and use older emojis that have a monichrome/unqualified equivalent?
Most of what you link recommended adding that suffix to ensure the color version was used (which would require it to be present)

[ebullient]

Can you try w/ the PR?

[ghost]

Sure. Can you give a hint on what is the easiest way to build the CLI from the repo? Thanks!

[ghost]

@ebullient Never mind. Just built everything and then I was able to execute the CLI JAR.

The emojis look good now in the Gnome Terminal!

[maxandersen]

here is it on osx in iterm2.

they are much less distinguishable but wsl usecase is quite a big crowd thus I reluctantly agree.