Browsing git commit history with fzf

git_fzf.sh

# git log show with fzf
#
# https://gist.github.com/tamphh/3c9a4aa07ef21232624bacb4b3f3c580/edit
# https://asciinema.org/a/257939
#

# git log show with fzf
gli() {

  # param validation
  if [[ ! `git log -n 1 $@ | head -n 1` ]] ;then
    return
  fi

  # filter by file string
  local filter
  # param existed, git log for file if existed
  if [ -n $@ ] && [ -f $@ ]; then
    filter="-- $@"
  fi

  # git command
  local gitlog=(
    git log
    --graph --color=always
    --abbrev=7
    --format='%C(auto)%h %an %C(blue)%s %C(yellow)%cr'
    $@
  )

  # fzf command
  local fzf=(
    fzf
    --ansi --no-sort --reverse --tiebreak=index
    --preview "f() { set -- \$(echo -- \$@ | grep -o '[a-f0-9]\{7\}'); [ \$# -eq 0 ] || git show --color=always \$1 $filter; }; f {}"
    --bind "ctrl-q:abort,ctrl-m:execute:
                (grep -o '[a-f0-9]\{7\}' | head -1 |
                xargs -I % sh -c 'git show --color=always % $filter | less -R') << 'FZF-EOF'
                {}
                FZF-EOF"
   --preview-window=right:60%
  )

  # piping them
  $gitlog | $fzf
}