bundle-show-dates-bundler1.sh

#!/usr/bin/env bash
set -eo pipefail

bundle show |
  grep -v '^Gems' |
  sed 's/^  \* \|(\|)//g' |
  while read -r line; do
    gemname=$(echo "$line" | cut -f1 -d" ")
    version=$(echo "$line" | cut -f2 -d" ")
    gitsha1=$(echo "$line" | cut -f3 -d" ")
    if [ -n "$gitsha1" ]; then
      cd "$(bundle show --paths "$gemname")";
      date="$(git log -1 --format=%cd --date=short)"
      version="$version-$gitsha1"
      cd - >/dev/null || exit
    else
      date=$(gem specification "$gemname" -v "$version" |
        awk '/^date:/ { print $2 }')
    fi
    printf "%s %-36s %s\n" "$date" "$gemname" "$version"
  done

bundle-show-dates-bundler2.sh

#!/usr/bin/env bash
set -eo pipefail

bundle list |
  grep '^  \*' |
  sed 's/^  \* \|(\|)//g' |
  while read -r line; do
    gemname=$(echo "$line" | cut -f1 -d" ")
    version=$(echo "$line" | cut -f2 -d" ")
    gitsha1=$(echo "$line" | cut -f3 -d" ")
    if [ -n "$gitsha1" ]; then
      cd "$(bundle info --path "$gemname")";
      date="$(git log -1 --format=%cd --date=short)"
      version="$version-$gitsha1"
      cd - >/dev/null || exit
    else
      date=$(bundle exec gem specification "$gemname" -v "$version" |
        awk '/^date:/ { print $2 }')
    fi
    printf "%s %-36s %s\n" "$date" "$gemname" "$version"
  done