git-st

#! /usr/bin/env bash

set -e

EXTRA_OPTS="--ignore-submodules"

mapfile -t status < <(git -c color.status=always status --short $EXTRA_OPTS)

if [ ${#status[@]} -eq 0 ]; then
    printf "\033[93mNothing to commit, working tree clean\033[0m\n"
    exit
fi

len=-1
for i in "${!status[@]}"; do
    status_no_c=$(sed -r 's/^(.[^ ]+) (.*)/\2/g' <<< "${status[i]}")
    if [ ${#status_no_c} -gt $len ]; then
        len=${#status_no_c}
    fi
done

mapfile -t diff < <(git diff --color $EXTRA_OPTS --stat HEAD 2> /dev/null | sed '$d; s/^ //' | cut -d '|' -f 2)

for i in "${!status[@]}"; do
    cstat=${status[i]}
    cdiff=${diff[i]}
    if [ -n "$cdiff" ]; then
        cstat1=$(sed -r 's/^(.[^ ]+) (.*)/\1/g' <<< "$cstat")
        cstat2=$(sed -r 's/^(.[^ ]+) (.*)/\2/g' <<< "$cstat")
        printf "%s %*s │%s\n" "$cstat1" "-$len" "$cstat2" "$cdiff"
    else
        printf "%s\n" "$cstat"
    fi
done