Created
November 14, 2014 19:26
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database.yml with support DATABASE_URL
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<% | |
require 'cgi' | |
require 'uri' | |
begin | |
uri = URI.parse(ENV["DATABASE_URL"]) | |
rescue URI::InvalidURIError | |
raise "Invalid DATABASE_URL" | |
end | |
raise "No RACK_ENV or RAILS_ENV found" unless ENV["RAILS_ENV"] || ENV["RACK_ENV"] | |
def attribute(name, value, force_string = false) | |
if value | |
value_string = | |
if force_string | |
'"' + value + '"' | |
else | |
value | |
end | |
"#{name}: #{value_string}" | |
else | |
"" | |
end | |
end | |
adapter = uri.scheme | |
adapter = "postgresql" if adapter == "postgres" | |
database = (uri.path || "").split("/")[1] | |
username = uri.user | |
password = uri.password | |
host = uri.host | |
port = uri.port | |
params = CGI.parse(uri.query || "") | |
if params["pool"].empty? | |
concurrency = (ENV['WEB_CONCURRENCY'] || 3).to_i | |
concurrency += (ENV['WORKS_CONCURRENCY'] || 5).to_i | |
concurrency *= 2 | |
params["pool"] = [concurrency] | |
end | |
%> | |
<%= ENV["RAILS_ENV"] || ENV["RACK_ENV"] %>: | |
<%= attribute "adapter", adapter %> | |
<%= attribute "database", database %> | |
<%= attribute "username", username %> | |
<%= attribute "password", password, true %> | |
<%= attribute "host", host %> | |
<%= attribute "port", port %> | |
<% params.each do |key, value| %> | |
<%= key %>: <%= value.first %> | |
<% end %> |
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