Rails database setup on Travis-CI
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26-10-2019 - |
Question
I'm trying to use Travis Continuous Integration on a Rails project. The documentation says that the test db must be configured as following for SQLite3:
test:
adapter: sqlite3
database: ":memory:"
timeout: 500
But I'd like to keep my default configuration for local tests. Is it possible to keep both my local settings and the Travis requirements?
Solution
My solution for this problem is fully based on a blog post with a few differences:
- Travis CI specific settings in
config/database.travis.yml
; cp config/database.travis.yml config/database.yml
in before script section of.travis.yml
;- I don't have
config/database.yml
in source tree.
Here is full listing for both files:
# .travis.yml
language: ruby
rvm:
- 1.9.3
env:
- DB=sqlite
- DB=mysql
- DB=postgresql
script:
- RAILS_ENV=test bundle exec rake db:migrate --trace
- bundle exec rake db:test:prepare
- bundle exec rake
before_script:
- cp config/database.travis.yml config/database.yml
- mysql -e 'create database strano_test'
- psql -c 'create database strano_test' -U postgres
# config/database.travis.yml
sqlite: &sqlite
adapter: sqlite3
database: db/<%= Rails.env %>.sqlite3
mysql: &mysql
adapter: mysql2
username: root
password:
database: strano_<%= Rails.env %>
postgresql: &postgresql
adapter: postgresql
username: postgres
password:
database: strano_<%= Rails.env %>
min_messages: ERROR
defaults: &defaults
pool: 5
timeout: 5000
host: localhost
<<: *<%= ENV['DB'] || "postgresql" %>
development:
<<: *defaults
test:
<<: *defaults
production:
<<: *defaults
OTHER TIPS
@mrm's blog post doesn't say anything about answering your question. I faced the same problem where my postgreql credentials are different on my local machine than travis default. This is the simplest solution I came up with:
# config/database.yml
test:
adapter: postgresql
database: medscraper_test
username: <%= ENV['TRAVIS'] ? 'postgres' : 'MY_TEST_USERNAME' %>
password: <%= ENV['TRAVIS'] ? '' : 'MY_TEST_PASSWORD' %>
Note that Travis CI automatically sets TRAVIS environment variable. Your solution would be:
# config/database.yml
test:
adapter: sqlite3
database: <%= ENV['TRAVIS'] ? '":memory:"' : 'db/test.sqlite3' %>
timeout: 500
I just wrote a blog post describing how to do this.