git-commit-explore

#!/usr/bin/env zsh

select_branch() {
    echo $(git branch -v | fzf --prompt="$1" --ansi --no-sort --reverse |
           tr -s ' ' | cut -d ' ' -f 2)
}

select_commit() {
    echo $(git log "$2" --oneline |
           fzf --prompt="$1" --ansi --no-sort --reverse                        \
           --preview="echo {} | tr -s ' ' | cut -d ' ' -f 1 |                  \
                      xargs -I % git diff --patience --color=always %^..%"     \
           --bind="ctrl-u:preview-page-up"                                     \
           --bind="ctrl-d:preview-page-down"                                   \
           --bind="ctrl-k:preview-up"                                          \
           --bind="ctrl-j:preview-down" | tr -s ' ' | cut -d ' ' -f 1)
}

branch=${1:-$(select_branch '[Branch] > ')}

first=$(select_commit '[Base Commit] >' "$branch")
second=$(select_commit '[Compare Commit] >' "$branch")

git diff-explore "$first" "$second"