Executing Rails-using script using crontab

Question

I'm trying to run a ruby script that I can run just fine using Ruby from my home directory, but that fails using cron. The beginning of the script autocheck.rb looks like this:

require 'rubygems'
require 'mechanize'
require 'json'
require "active_record"

ActiveRecord::Base.establish_connection(
  :adapter => "postgresql",
  :encoding => "utf8",
  :database => "depot_development",
  :pool => "5",
  :username => "depot",
  :password => "fake_pwd")

The crontab looks like this:

*/15 08-17 * * 1-5 ruby /home/user/autocheck.rb

I checked the other entries here relating to cron and rvm (presuming that's the problem; I'm using rvm and ruby version 1.9.3) but I couldn't figure out the solution. Any help would be appreciated.

Replace ruby for the full path of ruby in your system (/bin/ruby or something like that) — fedorqui, Commented Apr 9, 2013 at 21:54

mpapis · Accepted Answer · 2013-04-09 23:19:46Z

1

RVM has a command to setup schedules for you:

rvm cron command "*/15 08-17 * * 1-5" ruby /home/user/autocheck.rb

answered Apr 9, 2013 at 23:19

mpapis

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This didn't work, as written, but I eventually figured out one way to do it. I added this line to the beginning of the crontab shell, like so: SHELL=/home/user/.rvm/bin/rvm-shell
– jumar
Commented Apr 10, 2013 at 13:20
yes that will work, with one important note - it will use default ruby might have unexpected error when there is no default. As for the failing command - please open RVM ticket for it => github.com/wayneeseguin/rvm/issues
– mpapis
Commented Apr 10, 2013 at 16:59

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