README
¶
Proof-of-concept shell interface outside a terminal.
This works with bash and the Go sh/interp package.
Build with:
go generate
go build
Run:
./web_shell
# Or, to get rid of the controlling terminal:
# (requires using `kill` to exit)
setsid ./web_shell
Clean:
rm web_shell lib/inject_tcsetpgrp.so
Shift-Enter to enter a new line.
Ctrl-C to interrupt a running command.
Double-click to collapse a command's output.
It's horrible in many ways. Most notably, the shell interpreter instance is global.
Documentation
¶
Overview ¶
Prototype Shell UI, for the Go sh package and external shell interpreters.
Each command is allocated a pty for stdout and a (named) pipe for stderr. An anonymous pipe would be better, but would require fd passing.
This doesn't work for every command:
- If `less` can't open `/dev/tty`, it READS from stderr! Not stdin. (because stdin might be the read end of a pipe) alias less="less 2<&0" works, but wouldn't work in a pipe.
- sudo reads from /dev/tty by default, but you can tell it to use stdin with `sudo -S`. alias sudo="sudo -S" works.
Apparently according to POSIX, stderr is supposed to be open for both reading and writing...
Source Files
Click to show internal directories.
Click to hide internal directories.