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

I am using git bash on Windows and I am getting error like << was unexpected at this time. on those function using <<< {}, any thoughts?

@ztou I found that issue today. Turns out you need to start your git bash session with -l flag, so the subprocess that fzf starts for the preview is still gitbash. then the <<< operator will work.

You can even do some crazy stuff like creating a string to make it work from powershell using git bash.

function _gh () {
  if (-not (git rev-parse HEAD 2> $null)) { return }
  bash -lc @'
    git log --date=short --format='%C(green)%C(bold)%cd %C(auto)%h%d %s (%an)' --graph --color=always |
    fzf --height 50% --min-height 20 --border --bind ctrl-/:toggle-preview --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 | bat -p --color=always' |
    grep -o '[a-f0-9]\{7,\}'
'@
}

I'd like to ask the reason why some commands in the pipes are after fzf

Here is what I mean. Take _gb as an example.

_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/##'
}

The part sed 's/^..//' | cut -d' ' -f1 | sed 's#^remotes/##' at the bottom does not make much sense to me as fzf will display the results before these commands. Is there any reason to call them at the end?

As I can see, the above command can be simplified

_gb() {
  is_in_git_repo || return
  git branch -a --color=always | grep -v '/HEAD\s' | sort |
  sed 's/^..//' | cut -d' ' -f1 |
  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" {}' 
}

or if you want to include the sed part remove the word "remotes/"

_gb() {
  is_in_git_repo || return
  git branch -a --color=always | grep -v '/HEAD\s' | sort |
  sed 's/^..//' | cut -d' ' -f1 | sed 's#remotes/##'
  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" {}' 
}

@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