unixorn/git-extra-commands

#!/usr/bin/env bash
#
# Original source: https://bluz71.github.io/2018/11/26/fuzzy-finding-in-bash-with-fzf.html

set -o pipefail
if [[ -n "$DEBUG" ]]; then
  set -x
fi

fail() {
  printf '%s\n' "$1" >&2  ## Send message to stderr. Exclude >&2 if you don't want it that way.
  exit "${2-1}"  ## Return a code specified by $2 or 1 by default.
}

function has() {
  which "$@" > /dev/null 2>&1
}

git-fzf-log-pickaxe() {
  if [[ $# == 0 ]]; then
    echo 'Error: search term was not provided.'
    return
  fi
  selections=$(
    git log --oneline --color=always -S "$@" |
      fzf --ansi --no-sort --no-height \
          --preview "git show --color=always {1}"
    )
  # shellcheck disable=SC2086
  if [[ -n "$selections" ]]; then
    commits=$(echo "$selections" | cut -d' ' -f1 | tr '\n' ' ')
    git show $commits
  fi
 }

if ! has fzf; then
  fail "You need fzf (https://github.com/junegunn/fzf) to use this script. "
fi

# shellcheck disable=SC2068
git-fzf-log-pickaxe $@