Question

I currently use a color scheme based on which directory that I m working in. I manually open up a Konsole shell and then cd into a directory and got to Settings and change the color scheme.

What I would like to do is have Konsole automatically set its foreground and background colors based on which directory I m in. Basically if I m in any subdirectory below /home/me/src/java then I would like to use text white, background blue, for example. If I m below /home/me/src/documentation I want text black, background white, for example. I would like the color change to occur automatically, programmatically, when I call the "cd" command.

Is this possible? If so, can you provide me some direction as to how?

The way I see it I will need to be able to do a couple of things:

Be able to detect which Konsole the shell process (bash) is running in.
Be able to tell Konsole, probably via API call, to change the color scheme on the fly.

Answer 1

To get you started, here s a little information about using D-Bus to script Konsole.

You don t say which shell you re using, but if it s Bash you may want to use the $PROMPT_COMMAND variable which holds a command to be executed each time the $PS1 prompt is issued. The Z shell has a similar facility that s probably a bit more powerful (see man zshmisc for chpwd and precmd).

Otherwise, you might be able to use xterm escape sequences.

Answer 2

Context

Actually, Konsole has support for what they profiles. A profile is a group of settings (not only background), which you can manually define under Settings | Manage Profiles and around.

Also, there exists a command line utility called konsoleprofile which allows for programmatic changing of the profiles.

Actual answer

Go to Settings | Edit Current Profile... | Appearance
Define new Color Scheme for each of the directories you want to have special background for, e.g. myprofile1, myprofile2, mystandard
Make sure you can manually call konsoleprofile ColorScheme=myprofile1, konsoleprofile ColorScheme=standard, etc.
Plug in the calls to konsoleprofile into your $PROMPT_COMMAND, e.g. add this to your .bashrc:

PROMPT_COMMAND= [[ "$PWD" = /home/me/src/java* ]] && konsoleprofile ColorScheme=myprofile1 || konsoleprofile ColorScheme=mystandard ";$PROMPT_COMMAND"

Context

Actual answer

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