Migrated to https://github.com/junegunn/fzf-git.sh

functions.sh

# GIT heart FZF
# -------------

is_in_git_repo() {
  git rev-parse HEAD > /dev/null 2>&1
}

fzf-down() {
  fzf --height 50% --min-height 20 --border --bind ctrl-/:toggle-preview "$@"
}

_gf() {
  is_in_git_repo || return
  git -c color.status=always status --short |
  fzf-down -m --ansi --nth 2..,.. \
    --preview '(git diff --color=always -- {-1} | sed 1,4d; cat {-1})' |
  cut -c4- | sed 's/.* -> //'
}

_gb() {
  is_in_git_repo || return
  git branch -a --color=always | grep -v '/HEAD\s' | sort |
  fzf-down --ansi --multi --tac --preview-window right:70% \
    --preview 'git log --oneline --graph --date=short --color=always --pretty="format:%C(auto)%cd %h%d %s" $(sed s/^..// <<< {} | cut -d" " -f1)' |
  sed 's/^..//' | cut -d' ' -f1 |
  sed 's#^remotes/##'
}

_gt() {
  is_in_git_repo || return
  git tag --sort -version:refname |
  fzf-down --multi --preview-window right:70% \
    --preview 'git show --color=always {}'
}

_gh() {
  is_in_git_repo || return
  git log --date=short --format="%C(green)%C(bold)%cd %C(auto)%h%d %s (%an)" --graph --color=always |
  fzf-down --ansi --no-sort --reverse --multi --bind 'ctrl-s:toggle-sort' \
    --header 'Press CTRL-S to toggle sort' \
    --preview 'grep -o "[a-f0-9]\{7,\}" <<< {} | xargs git show --color=always' |
  grep -o "[a-f0-9]\{7,\}"
}

_gr() {
  is_in_git_repo || return
  git remote -v | awk '{print $1 "\t" $2}' | uniq |
  fzf-down --tac \
    --preview 'git log --oneline --graph --date=short --pretty="format:%C(auto)%cd %h%d %s" {1}' |
  cut -d$'\t' -f1
}

_gs() {
  is_in_git_repo || return
  git stash list | fzf-down --reverse -d: --preview 'git show --color=always {1}' |
  cut -d: -f1
}

key-binding.bash

if [[ $- =~ i ]]; then
  bind '"\er": redraw-current-line'
  bind '"\C-g\C-f": "$(_gf)\e\C-e\er"'
  bind '"\C-g\C-b": "$(_gb)\e\C-e\er"'
  bind '"\C-g\C-t": "$(_gt)\e\C-e\er"'
  bind '"\C-g\C-h": "$(_gh)\e\C-e\er"'
  bind '"\C-g\C-r": "$(_gr)\e\C-e\er"'
  bind '"\C-g\C-s": "$(_gs)\e\C-e\er"'
fi

key-binding.zsh

join-lines() {
  local item
  while read item; do
    echo -n "${(q)item} "
  done
}

() {
  local c
  for c in $@; do
    eval "fzf-g$c-widget() { local result=\$(_g$c | join-lines); zle reset-prompt; LBUFFER+=\$result }"
    eval "zle -N fzf-g$c-widget"
    eval "bindkey '^g^$c' fzf-g$c-widget"
  done
} f b t r h s

@DanSM-5 Pipe a command after fzf means pass the selection(s) from fzf into this command for further processing.

To implement a feature, you can process the data first and then pass them into fzf and make selections to get what you need, or you can first pass the data into fzf and then post-process the selections to get what you need.

@rockyzhang24 I see, I was pretty much using this for the visualization but that's a nice part too.
For the _gb function, I just noticed that moving those commands above will remove the * for the current branch. So it is likely intentional to leave it in fzf list output. I was only paying attention to the color highlight so I really missed that.

If you use a non-standard diff tool (such as bcompare), you'll need to tell git to use the built-in with the --no-ext-diff flag:

_gf() {
  is_in_git_repo || return
  git -c color.status=always status --short |
  fzf-down -m --ansi --nth 2..,.. \
    --preview '(git diff --no-ext-diff --color=always -- {-1} | sed 1,4d; cat {-1})' |
  cut -c4- | sed 's/.* -> //'
}

Migrated to https://github.com/junegunn/fzf-git.sh