Display current World Cup 2014 match scores as part of terminal prompt (requires jq, and wget/curl)

worldcup-prompt.bash

# You will need to have jq (http://stedolan.github.io/jq/) and wget/curl installed on your system before being able to use this script.
#
# Usage: Include the following bash snippet in your ~/.bashrc file, or save as a separate file and source it.
#
# Example prompt generated by the script:
# abiyani@vaio:~ [BEL-2-1-ALG, RUS-1-1-KOR, BRA-0-0-MEX]
#
# Note: By default it display score for only active matches, and if there is no active match at the moment, then prompt remains unchanged.

function get_scores() {
    local current_ts="$(date +%s)"
    if [[ $((current_ts-_LAST_GET_SCORES_TS)) -ge 60 ]]; then
        _LAST_GET_SCORES_TS="$current_ts"

        # Comment & uncomment appropriate combination of 4 lines below to make a decision
        # about which http client to use, and which score(s) to display.
        local http_agent="wget -q -O - " # Use wget to make http request
        #local http_agent="curl -s "  # Use curl to make http request
        local json="$($http_agent http://worldcup.sfg.io/matches/current)" # Only show score for active matches
        #local json="$($http_agent http://worldcup.sfg.io/matches/today)" # Show score for all matches played today
        
        local out i t
        for (( i=0;i<5;i++ )); do
            t="$(echo "$json"| printf "%s" "$(jq -r ".[$i].home_team.code,.[$i].home_team.goals,.[$i].away_team.goals,.[$i].away_team.code" 2>/dev/null)" | tr '\n' '-')";
            if [[ -z "$t" || "$t" =~ null ]]; then break; fi;
            if [[ -z "$out" ]];then 
                out="$t";
            else 
                out+=", $t";
            fi
        done
        if [[ ! -z "$out" ]]; then 
            _LAST_GET_SCORES_VAL="[$out] "
        else
            _LAST_GET_SCORES_VAL=""
        fi
    fi
}

PROMPT_COMMAND='get_scores'
PS1+='`printf "%s" "$_LAST_GET_SCORES_VAL"`'  # Append output of get_scores() to PS1. Feel free to tweak to any alternative format you like.