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require File.join(File.dirname(__FILE__), 'usage')
namespace :config_files do
include Usage
def convert_ugly(file, replacements)
converted_lines = []
ugly_var = /\!\!\(\*= \$([^ ]+) \*\)\!\!/
File.open(file, 'r').each do |line|
line = line.gsub(ugly_var) do |match|
var = $1.to_sym
replacement = replacements[var]
if replacement == nil
raise "Unhandled variable in .ugly file: $#{var}"
else
replacements[var]
end
end
converted_lines << line
end
converted_lines
end
desc 'Convert Debian .ugly init script in config to a form suitable for installing in /etc/init.d'
task :convert_init_script => :environment do
example = 'rake config_files:convert_init_script DEPLOY_USER=deploy VHOST_DIR=/dir/above/alaveteli VCSPATH=alaveteli SITE=alaveteli SCRIPT_FILE=config/alert-tracks-debian.ugly'
check_for_env_vars(['DEPLOY_USER',
'VHOST_DIR',
'SCRIPT_FILE'], example)
replacements = {
:user => ENV['DEPLOY_USER'],
:vhost_dir => ENV['VHOST_DIR'],
:vcspath => ENV.fetch('VCSPATH') { 'alaveteli' },
:site => ENV.fetch('SITE') { 'foi' },
:rails_env => ENV.fetch('RAILS_ENV') { 'development' }
}
# Use the filename for the $daemon_name ugly variable
daemon_name = File.basename(ENV['SCRIPT_FILE'], '-debian.ugly')
replacements.update(:daemon_name => "#{ replacements[:site] }-#{ daemon_name }")
# Generate the template for potential further processing
converted = convert_ugly(ENV['SCRIPT_FILE'], replacements)
# gsub the RAILS_ENV in to the generated template if its not set by the
# hard coded config file
unless File.exists?("#{ Rails.root }/config/rails_env.rb")
converted.each do |line|
line.gsub!(/^#\s*RAILS_ENV=your_rails_env/, "RAILS_ENV=#{Rails.env}")
line.gsub!(/^#\s*export RAILS_ENV/, "export RAILS_ENV")
end
end
converted.each do |line|
puts line
end
end
desc 'Convert Debian .ugly crontab file in config to a form suitable for installing in /etc/cron.d'
task :convert_crontab => :environment do
example = 'rake config_files:convert_crontab DEPLOY_USER=deploy VHOST_DIR=/dir/above/alaveteli VCSPATH=alaveteli SITE=alaveteli CRONTAB=config/crontab-example MAILTO=cron-alaveteli@example.org'
check_for_env_vars(['DEPLOY_USER',
'VHOST_DIR',
'VCSPATH',
'SITE',
'CRONTAB'], example)
replacements = {
:user => ENV['DEPLOY_USER'],
:vhost_dir => ENV['VHOST_DIR'],
:vcspath => ENV['VCSPATH'],
:site => ENV['SITE'],
:mailto => ENV.fetch('MAILTO') { "cron-#{ ENV['SITE'] }@mysociety.org" }
}
convert_ugly(ENV['CRONTAB'], replacements).each do |line|
puts line
end
end
end
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