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rake task to migrate paperclip attachments to Amazon S3
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namespace :attachments do | |
task :migrate_to_s3 => :environment do | |
require 'aws/s3' | |
# Load credentials | |
s3_options = YAML.load_file(File.join(Rails.root, 'config/s3.yml')).symbolize_keys | |
bucket = s3_options[:bucket_name] | |
# Establish S3 connection | |
s3_options.delete(:bucket_name) | |
AWS::S3::Base.establish_connection!(s3_options) | |
styles = [] | |
# Collect all the styles, all are uploaded because `rake paperclip:refresh CLASS=Attachment` is broken for mongoid | |
Attachment.first.data.styles.each do |style| | |
styles.push(style[0]) | |
end | |
# also the :original "style" | |
styles.push(:original) | |
# Process each attachment | |
Attachment.all.each_with_index do |attachment, n| | |
styles.each do |style| | |
path = attachment.data.path(style) | |
file = attachment.data.to_file(style) | |
begin | |
AWS::S3::S3Object.store(path, file, bucket, :access => :public_read) | |
rescue AWS::S3::NoSuchBucket => e | |
AWS::S3::Bucket.create(bucket) | |
retry | |
rescue AWS::S3::ResponseError => e | |
raise | |
end | |
puts "Saved #{path} to S3 (#{n}/#{Attachment.count})" | |
end | |
end | |
end | |
end |
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