Create a status bar using LemonBoy/bar - disclaimer: terrible update checking

checkgits.sh

#|/bin/bash

# Folder containing other folders (git repositories) or symlinks to them
WORKFLDR="$HOME/Git"
# Count of updated repositories
updatedc=0
updnames=()
# Whether or not to stay quiet
QUIET="false"
# Where to output the data to
PIPE=""
# Temporary file to store last, unchecked and updated repo names
LUPS="/tmp/checkgits.sh.lups"
if ! [ -f "$LUPS" ]; then
    touch "$LUPS"
fi

# Replace the echo command so it redirects to the pipe automatically
function echox() {
    if [ "$PIPE" == "" ]; then
        echo $@
    else
        echo $@ > "$PIPE"
    fi
}

# Open a terminal window and display the last updated repositories
function showrups() {
    urxvt -e bash -c "cat $LUPS | uniq && read -p \"Press enter to continue\"" &
    sleep 1.5s
    rm -rf "$LUPS"
    touch "$LUPS"
}

OPTERR=0
while getopts f:qsp: opt; do
    case $opt in
         f) WORKFLDR="$OPTARG" ;;
         q) QUIET="true" ;;
         p) PIPE="$OPTARG" ;;
         s) showrups; exit ;;
        \?) echo -e "Invalid option: #$(( $OPTIND - 1))\n" \
                    "Usage: checkgits.sh [-q] [-p PIPE] [-f FOLDER]\n\n" \
                    "-q\tStays quiet, printing only the number of repositories\n" \
                    "\tupdated and their names separated by \" ,\"s.\n" \
                    "-f\tSets the folder to check for repositories into.\n" \
                    "-p\tSets the FIFO to pipe the result to.\n" \
                    "-s\tShows the last updated repositories and exits."
            exit 1 ;;
    esac
done

if ! [ -n $1 ]; then
    WORKFLDR=$1
fi

# Check if the Git folder exists
if ! [ -d "${WORKFLDR}" ]; then
    if [ "$QUIET" == "false" ]; then
        echox -e "\e[0;31mThe \"Git\" folder doesn't exist.\e[0m"
    else
        echox "0"
    fi
    exit 1
fi

# Loop through all folders
for folder in ${WORKFLDR}/*; do
    if [ -d "$folder" ]; then
        cd "$folder"
        # Check if the folder is a git repository
        if [ -d "$(pwd)/.git" ]; then
            bsnm=$(basename "$folder")
            if [ "$QUIET" == "false" ]; then
                echox -n "Updating $bsnm..."
                if [[ ${#bsnm} -gt 16 ]]; then
                    echox -ne "\t"
                elif [[ ${#bsnm} -gt 12 ]]; then
                    echox -ne "\t\t"
                elif [[ ${#bsnm} -lt 4 ]]; then
                    echox -ne "\t\t\t\t"
                else
                    echox -ne "\t\t\t"
                fi
                echox -ne "\e[0;31m"
            fi
            # Check if the folder is actually a repository (less obvious way)
            git status > /dev/null 2>&1
            if [ $? == 128 ]; then
                if [ "$QUIET" == "false" ]; then
                    echox -e "Not a git repository."
                fi
                continue
            fi
            # Try to pull and store the result
            updt=$(git pull 2> /dev/null)
            case $? in
                0*) if [ "$updt" == "Already up-to-date." ]; then
                        if [ "$QUIET" == "false" ]; then
                            echox -e "\e[0;32mAlready up-to-date.\e[0m"
                        fi
                    else
                        if [ "$QUIET" == "false" ]; then
                            echox -e "\e[0;32mUpdated.\e[0m";
                        fi
                        updnames[$updatedc]="$bsnm"
                        updatedc=$(( $updatedc + 1))
                        echo -e "$bsnm has been \e[0;32mupdated\e[0m." >> "$LUPS"
                    fi ;;
                1*) if [ "$QUIET" == "false" ]; then
                        echox -e "\e[0;31mError.\e[0m"
                    fi ;;
            esac
        fi
    fi
done

if [ "$QUIET" == "true" ]; then
    res="$updatedc"
    if [ "$updatedc" != "0" ]; then
        res="$res ${updnames[@]}"
    fi
    echox "$res"
else
    if [ $updatedc != 0 ]; then
        echox -e "\n\e[0;32mUpdated $updatedc repositories.\e[0m"
    else
        echox -e "\n\e[0;32mNo repositories updated.\e[0m"
    fi
fi

mkbar.sh

#!/bin/bash

SPSP="    "

function workspaces() {
    num=$(xprop -root _NET_NUMBER_OF_DESKTOPS | cut -d ' ' -f3)
    cur=$(xprop -root _NET_CURRENT_DESKTOP | cut -d ' ' -f3)
    echo -n "$(( $cur + 1 ))/$num"
}

function volume() {
    # ALSA volume
    #echo -n "$(amixer sget Headphone | sed -n 's/.*\[\([0-9/]*%\)\].*/\1/p' | uniq)%"
    # MPD volume
    echo -n "$(mpc volume | cut -d ' ' -f2)%"
}

function clock() {
    echo -n "$(date '+%d/%m %H:%M')"
}

function repos() {
    res=$(cat /tmp/checkgits.sh.lups | uniq | wc -l)
    if [ "$res" != "0" ]; then
        echo -n "%{A:checkgits.sh -s:}$res repos to recompile$SPSP%{A}"
    fi
}

function repoups() {
    echo -n "$(cat "/tmp/checkgits.sh.msg")"
}

function checkrepos() {
    repocount=0
    reponames=()
    while :; do
        res="$(checkgits.sh -q)"
        # Format: "([0-9]+) (whatever's needed for folder names)"
        # Split by space and get first element (repo count)
        repocount=$(echo "$res" | awk -F ' ' '{print $1}')
        if [ "$repocount" != "0" ]; then
            # Get the text after the first space and turn it into an array by splitting it by commas
            _reponames=$(echo "$res" | awk -F ' ' '{print substr($0, length($1) + 2, length($0) - length($1) + 1)}')
            oldIFS="$IFS"; IFS=","; read -a reponames <<< "${_reponames}"; IFS="$oldIFS"
            # Add a notification on the bar
            echo -n "%{A:checkgits.sh -s:}%{B#ff424242}%{F#edeade}Updated $repocount $(if [ "$repocount" == "1" ]; then echo -n "repo"; else echo -n "repos"; fi)%{F-}%{B-}%{A}" > /tmp/checkgits.sh.msg
            sleep 20s
            echo -n "" > /tmp/checkgits.sh.msg
        fi
        sleep 5m
    done &
}

function fillbar() {
    echo -n "%{l}${SPSP}$(workspaces)%{c}$(repos)%{r}$(volume) $(clock)${SPSP}"
}

if [ $(pgrep -cx bar) -gt 1 ]; then
    echo "The bar is already running."
    exit 1
fi

# Start repo checking worker
if [ -f "/tmp/checkgits.sh.msg" ]; then
    rm -rf "/tmp/checkgits.sh.msg"
fi
touch "/tmp/checkgits.sh.msg"
checkrepos
while :; do
    echo "$(fillbar)"
    sleep 0.2s
done | bar \
    -g "800x30+320+20" \
    -B "#ffedeade" \
    -F "#ff424242" \
    -f "-*-terminus-medium-*-*--14-*-*-*-*-*-*-*" \
    -p | while read action; do
        bash -c "$action"
    done &
wait