browsable git log (requires `fzf` `delta`)

glog.sh

#!/usr/bin/env bash

# derived from https://github.com/junegunn/fzf/wiki/examples#git
glog() {
  # extra sha from git log
  local parse_log="echo {} | grep -o '[a-f0-9]\{7\}' | head -1"
  # pass log line into colorized diff `delta`
  # https://github.com/dandavison/delta
  local view_line="$parse_log | xargs -I % sh -c 'git show --color=always % | delta'"

  # https://github.com/koalaman/shellcheck/wiki/SC2155
  local commit_sha
  commit_sha=$(git log --color=always --format="%C(auto)%h%d %s %C(black)%C(bold)%cr% C(auto)%an" "$@" |
    fzf --no-sort --reverse --tiebreak=index --no-multi --ansi --preview="$view_line" |
    cut -d' ' -f1)
  # strip whitespace, if selecting a file before fzf completes, there's
  # a leading whitespace
  commit_sha="${commit_sha// /}"
  if [ -n "$commit_sha" ]; then
    echo "$commit_sha"
  fi
}