reptyr VS Mosh

Maybe https://github.com/nelhage/reptyr

https://github.com/nelhage/reptyr I guess this is what your looking for (it reparents a process, while retaining stdin/out using the ptrace syscall and some linux hacks iiuc)

Start CPython and import the libraries. Then keep the process running as a fork server. Whenever a new instance it needed, we make a fork (os.fork), and apply a similar logic as reptyr. Some technical details are here.

Very much reminds me of reptyr

- reptyr: https://github.com/nelhage/reptyr

using mosh means i don't get SIGHUP, and if i use my local display, i can open another mosh, reptr my old session (it's still there!) and keep on hacking.

I know there is reptyr to reattaching running process to another tty. You can probably do the same from within the program. There is an abandoned rust rewrite you can probably ignore.

Alternatively, there's also reptyr, which allows you to reattach to a detached process - thereby giving you access to the standard input and standard output of a running Minecraft server instance.

If you haven’t already, and I know this doesn’t hold up for GUI emacs or vim, but consider running them through https://mosh.org/

FWIW, I wouldn't try to parse escape sequences "directly" from the input bytestream -- it's easy to end up with annoying bugs. Longer-term it's probably better to separate the logic e.g.:

- First step (for a UTF-8-input terminal emulator) means "lexing" the input bytestream as UTF-8 into a stream of USVs, which involves some subtleties (https://github.com/mobile-shell/mosh/blob/master/src/termina...).

- Second step is to run the DEC parser/FSM logic on the sequence of USVs, which is independent of the escape sequences (https://vt100.net/emu/dec_ansi_parser ; https://github.com/mobile-shell/mosh/blob/master/src/termina...).

- And then the third step is for the terminal to execute the "dispatch"/"execute"/etc. actions coming from the FSM, which is where the escape sequences and control chars get implemented (https://github.com/mobile-shell/mosh/blob/master/src/termina...).

Without this separation, it's easier to end up with bugs where, e.g., a UTF-8 sequence or an ANSI escape sequence is treated differently when it's split between multiple read() calls vs. all in one call.

Btw, you can use mosh to hide the latency of SSH. https://mosh.org/

I've been using Kitty's SSH features for as long as I can remember but I recently setup Mosh and I really like how it doesn't drop connections and supports roaming.

I am surprised many people write about ssh into a server. Mosh[1] feels more responsive and it also supports longer sessions.

[1] - https://mosh.org/

Also they support Mosh which I install on my servers. It's way better than plain ssh when you're on mobile networks and wifi, especially with connections that are unreliable or bandwidth-constrained.

I’ve recently been experimenting with MoSH (Mobile Shell). Basically think SSH but with UDP - so more resilient to shoddy network conditions, roaming access points, etc.

If it is not for production (e.g. running as a daemon or a server) and you only care about the development, another ad-hoc way is using screen/tmus-like software incl. byobu, and combine it with mosh.