Hooks or some cached copy of get-caller-identity

[chrisortman]

Hello. I'm trying to set up shell prompt integration so that I can see which AWS role I am currently authenticated as on my prompt.

I can get pretty close by using the result of aws get-caller-identity but that is a pretty slow operation to invoke over and over every time my prompt displays.

I'm wondering if there could be a hook script of some sorts on login / logout so I could know when I need to update? Or alternatively if the get-caller-identity response data could be stored in the ~/.aws-login folder somewhere for me?

[chrisortman]

I did find a work around as long as the tool forces you to log out before logging in again

aws_prompt_info() {

  local PID_FILE=~/.aws-login/default.pid
  local IDENTITY_FILE=~/.aws-login/identity.txt
  local FILTER_FILE=~/.oh-my-zsh/custom/aws_filter.jq
  local PROF=""

  if [[ -f "$PID_FILE" ]] then

    PROF=$( cat $IDENTITY_FILE 2>/dev/null || aws sts get-caller-identity | jq -r -f $FILTER_FILE | tee $IDENTITY_FILE)
    [[ -n "$PROF" ]] && echo "[$PROF]"
  else
    [[ -f "$IDENTITY_FILE" ]] && rm $IDENTITY_FILE
  fi
}

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