#!/usr/bin/env bash

# A sorted prettier branch -vv

if ! (( BASH_VERSINFO[0] > 4 ||

BASH_VERSINFO[0] == 4 && BASH_VERSINFO[1] >= 2 )); then

printf >&2 'This script requires bash 4.2 or newer\n'

exit 1

fi

# allow the user to set a default reverse option in an environment variable

reverse=$(git config --get git-extras.brv.reverse || echo false)

while [[ $# -gt 0 ]]; do

case $1 in

-r | --reverse)

reverse=true

shift

;;

*)

break

;;

esac

done

if [[ -t 1 ]]; then

shopt -s checkwinsize

COLUMNS=$(tput cols)

color_branch_local=$(git config --get-color color.branch.local normal)

color_branch_current=$(git config --get-color color.branch.current green)

color_diff_commit=$(git config --get-color color.diff.commit yellow)

color_branch_upstream=$(git config --get-color color.branch.upstream blue)

reset=$(tput sgr0)

fi

declare -A upstream date hash message

eval "$(

git for-each-ref --format='upstream[%(refname:short)]=%(upstream:short)' \

--shell 'refs/heads/**'

)"

for b in "${!upstream[@]}"; do

blen=${#b} ulen=${#upstream[$b]}

(( bwidth = blen > bwidth ? blen : bwidth ))

(( uwidth = ulen > uwidth ? ulen : uwidth ))

IFS=/ read -r 'date[$b]' 'hash[$b]' 'message[$b]' < <(

git log --no-walk=unsorted --format=%ct/%h/%s "$b" --

)

hlen=${#hash[$b]}

(( hwidth = hlen > hwidth ? hlen : hwidth ))

done

mapfile -t ordered < <(

# the reverse option of git-brv causes the sort to be sorted normally rather than in reverse

reverse_opt=""

if [[ $reverse = false ]]; then

reverse_opt="-r"

fi

for b in "${!date[@]}"; do

printf '%d\t%s\n' "${date[$b]}" "$b"

done | sort -n $reverse_opt | cut -f2-

)

current=$(git symbolic-ref -q --short HEAD)

for b in "${ordered[@]}"; do

branch_color=$color_branch_local

if [[ $b = "$current" ]]; then

branch_color=$color_branch_current

fi

if [[ -t 1 ]]; then

msg=${message[$b]:0:COLUMNS-bwidth-uwidth-hwidth-14}

else

msg=${message[$b]}

fi

printf '%(%Y-%m-%d)T %s%*s%s %s%*s%s %s%*s%s %s\n' \

"${date[$b]}" \

"$branch_color" "-$bwidth" "$b" "$reset" \

"$color_branch_upstream" "-$uwidth" "${upstream[$b]}" "$reset" \

"$color_diff_commit" "-$hwidth" "${hash[$b]}" "$reset" \

"$msg"

done