gsdeplode

#!/bin/sh

# Assuming you use gs(1) and dep(1), this program
# implodes your .gs directory and installs all gems
# listed in your .gems file with a single call to gem(1).
#
# gs(1): https://github.com/soveran/gs
# dep(1): https://github.com/cyx/dep

set -e

die() {
  echo "$@" >&2
  exit 1
}

[[ -f .gems ]] || die "No .gems file found. Are you sure you're in the right directory?"

[[ -d .gs ]] && rm -r .gs

mkdir .gs

if gem -v | grep -q '^2\.'; then
  specs=$(sed -e 's/ -v /:/' .gems)
else
  specs=$(cat .gems)
fi

specs=$(tr "\n" " " <<< $specs)

echo "  gem install $specs"

gs "gem install $specs"