add change directory option

[sijad]

now it's possible to open havoc in a directory havoc -d /var/log/

[ii8]

It seems there is actually a more general problem here about setting up the environment of the client shell/application.

Changing directory is not the only thing you might want to do, you might also want to:

• Set environment variables
• Unset environment variables
• Set niceness
• run as a different user
• chroot

I've thought about adding environment variables before and concluded that it would be better to just set them by telling havoc to call a script that can then do arbitrary setup, for example: mysetup.sh:

export MYVAR=2
cd /var/log
exec bash

And then havoc sh mysetup.sh This would then mean we can do more complex setup, like reading some part of the environment from a file, changing to a directory that is specified dynamically somehow, and we would not have to add any code to havoc.

I agree that it's a bit more roundabout though, so let me know what you think.

If you're already in a shell then simple kinds of setup can be done before running havoc: export MYVAR=2; cd /var/log && havoc, but that's not always possible.

[sijad]

I needed this option to open a new terminal with same directory as the old one in sway. other terminal (termite, alacritty, etc) has this option, so I guess havoc should have this too.

[sijad]

I've tried your approach (cd in subscript) but it does not working with sway exec. in this script I've tried cd and then running havoc but it opened in $HOME instead

[ii8]

The running script approach should work, for example:

exec havoc sh /usr/local/bin/termsetup.sh

But maybe the convenience of just having -d justifies it, not sure.

[sijad]

you're right. in my case swaymsg -t command exec changes the cwd to $HOME. I'm really not sure either but in last example, there's also a sh process per terminal instance.

[ii8]

The sh instance is always there, that is done by sway.

[ii8]

This should also work: swaymsg -t command exec havoc sh /usr/local/bin/termsetup.sh where

$ cat /usr/local/bin/termsetup.sh
cd /var/log
exec bash

[sijad]

I didn't know about exec command. I'm going to use your approach, feel free to close PR.