A simple TUI for viewing your decorated git log

git-log-watch

#!/usr/bin/env bash

last_hash=""

while true; do
    clear
    if [[ -n "$TMUX" ]]; then
        cols=$(tmux display-message -p '#{pane_width}')
        lines=$(( $(tmux display-message -p '#{pane_height}') - 2 ))
    else
        lines=$(( $(tput lines) - 2 ))
        cols=$(tput cols)
    fi
    git --no-pager log --graph --oneline --all --decorate --date-order --color=always \
        | perl -pe 'BEGIN{$c='"$cols"'} my $v=0; s/(\x1b\[[0-9;]*[mK])|(.)/defined $2 ? ($v++ < $c ? $2 : "") : $1/ge; s/$/\x1b[0m/' \
        | head -n "$lines"
    echo ""
    printf "[r]efresh [q]uit (auto-refreshes)"

    last_hash=$(git rev-parse HEAD 2>/dev/null)

    while true; do
        key=""
        if read -rsn1 -t 1 key; then
            # Key was pressed
            case "$key" in
                q|Q) exit 0 ;;
                *) break ;;
            esac
        else
            # Timeout - check for new commits
            current_hash=$(git rev-parse HEAD 2>/dev/null)
            if [[ "$current_hash" != "$last_hash" ]]; then
                break
            fi
        fi
    done
done