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How to share a /usr/local/bundle cache between Ruby build jobs
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| version: "2" | |
| services: | |
| dev: | |
| image: ruby:2.3 | |
| volumes: | |
| - .:/project | |
| - ruby2.3-bundle-cache:/usr/local/bundle | |
| working_dir: /project | |
| volumes: | |
| ruby2.3-bundle-cache: | |
| external: true |
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| #! /bin/bash -e | |
| # | |
| # Run rake inside a docker-compose sandbox | |
| cd $(dirname $0)/.. | |
| trap "docker-compose down --volumes" 0 | |
| docker volume create --name ruby2.3-bundle-cache > /dev/null | |
| docker-compose run --rm dev sh -c 'bundle check > /dev/null || flock $GEM_HOME bundle install' | |
| docker-compose run --rm dev bundle exec rake "$@" |
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Note the
flock $GEM_HOMEstuff. We do because Bundler (or RubyGems) gets upset if you have multiple "bundle install" jobs pointed at the same directory.