Prompt refuses to update when changing directories about vcprompt

[Pewpewarrows]

Ended up stumbling upon a solution this morning. There's a bash variable called PROMPT_COMMAND, that if set, will execute every time a prompt appears (whether it's after a cd or any other command on the terminal).

By placing this in my .bash_profile or .bashrc, I was able to get vcprompt to always show the latest directory info:

update_prompt() {
    export PS1="$(vcprompt) blah blah blah"
}
PROMPT_COMMAND=update_prompt

Anything that I needed to update every time a new prompt appeared, I threw into that update_prompt function, such as looking for the $VIRTUAL_ENV variable being set, using a custom vcprompt format, etc.

I don't know if the PROMPT_COMMAND shenanigans is only a problem because of some system configuration of mine, or whether this is a universal issue that the docs just failed to mention. In which case, an updated README would be nice :)

[djl]

Weird. I noticed this happening myself while I was working on the README overhaul. Testing it again now, I can't get it to happen again.

I'm fairly certain it's my crappy install procedure. I'll poke around some more and update the README if I find anything.

[djl]

Updated the instructions in 81b13b6. The problem seemed to be the recursive use of $PS1.

Try that. It should be fixed now :)

[vbajpai]

I had the same issue.

@xvzf: the updated instructions didn't help me.

@Pewpewarrows: the PROMPT_COMMAND trick worked for me

[djl]

That's what I get for not using bash :)

I'll update the instructions later.

[djl]

Oh! I found a simpler way to do it. Just escape the dollar sign:

export PS1="\$(vcprompt) blah blah blah"

@vbajpai, @Pewpewarrows: can you try this way and let me know if it works?

[vbajpai]

On Jul 14, 2011, at 8:05 PM, xvzf wrote:

I have been doing that actually all this while.

[djl]

According to this page that should be working. Since it works for me in a bunch of different versions of bash, I'll settle on those instructions.