tty | Toolkit for developing sleek command line apps | Command Line Interface library

The vertex order of line primitives differs from the vertex order of quads. See GL_LINES not showing up on top of cube?. However, you can draw GL_QUADS and change the rasterization mode with glPolygonMode:

It seems that adapting this answer from this question on ServerFault (entitled How can I check in bash if a shell is running in interactive mode?, which is close to your question albeit not an exact duplicate) could be a solution for your use case.

So, could you try writing either:

• [ -t 0 ] && [ -t 1 ] && echo your code
• or [ -t 0 ] && echo your code ?

For completeness, here is one link documenting this POSIX flag -t, which is thus portable:

https://pubs.opengroup.org/onlinepubs/9699919799/utilities/test.html

-t file_descriptor
True if file descriptor number file_descriptor is open and is associated with a terminal.
False if file_descriptor is not a valid file descriptor number, or if file descriptor number file_descriptor is not open, or if it is open but is not associated with a terminal.

Furthermore, if you use bash (not just a POSIX-compliant shell), you might want to combine this idea with the special 255 file descriptor number: [ -t 255 ].

Source: On Unix&Linux-SE,

That 255 file descriptor is an open handle to the controlling tty and is only used when bash is run in interactive mode. […]

− In Bash, what is file descriptor 255 for, can I use it? (by @mosvy)

The config.Image, container, and container_config can all be ignored, you won't even see those fields when you build with other tools like buildkit. They come from how the classic builder creates images by creating dangling images for each build step, and this shows some of id's and randomly generated numbers associated with those previous steps.

Since I don't have your image, I'm going to work through an example with busybox cloned to my local registry:

You can use socat to fake a new pseudo terminal for a child process.

Let tty.sh be the following script:

First, the basics: each process has a userid and a groupid (I am going to ignore supplemental attributes like additional groupids).

Userid 0 is root. That's it, end of story.

When you have a process whose userid is 0, it's a root process. End of story.

How a process acquires its userid 0 is immaterial. If a process's userid is 0, it is a root process, and that's it.

When you go through the motions of setting up a setuid process, that setuid(0)s itself, you're done. You're a root process. That's it. There's nothing more to say about it.

setsuid() and getuid() documentation and it doesn't seem like there is anything about password authentication.

Correct. All they do is adjust/update the userid. That's it. There's nothing more to it.

The su and sudo processes do the following:

1. They are setuid executables.

Allow me to give credit to they who deserve it!! The correct answer was provided by earlopain in this issue on rails/rails

It's actually an almost embarrassingly easy fix - once you know it :)

Add tty: true to your docker-compose.yml - like this

There may be an easier way but one option would be to construct a table excluding the zero sum columns, then extract the headers and rows to feed into tty-table:

Your last command has an extra layer of quotes.

The community has finally completed the AAB support for Buildozer. Although it is still a pending pull request, it is already possible to create the AAB, and I have figured out how to do it using Docker.

I have found two very interesting gists that helped me a lot (this one about creating an AAB with Buildozer on Ubuntu, and another one about signing an AAB on the same platform). However, I have run everything on Windows via Docker, so I think it is a good idea to share how I did it.

1. Clone the feat/aab-support branch of the Buildozer repository in your local machine: