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# File 'lib/bundle_cache/cache.rb', line 5
def self.cache
AWS.config({
:access_key_id => ENV["AWS_S3_KEY"],
:secret_access_key => ENV["AWS_S3_SECRET"],
:region => ENV["AWS_S3_REGION"] || "us-east-1"
})
bucket_name = ENV["AWS_S3_BUCKET"]
architecture = `uname -m`.strip
file_name = "#{ENV['BUNDLE_ARCHIVE']}-#{architecture}.tgz"
file_path = File.expand_path("~/#{file_name}")
lock_file = File.join(File.expand_path(ENV["TRAVIS_BUILD_DIR"].to_s), "Gemfile.lock")
digest_filename = "#{file_name}.sha2"
old_digest = File.expand_path("~/remote_#{digest_filename}")
puts "Checking for changes"
bundle_digest = Digest::SHA2.file(lock_file).hexdigest
old_digest = File.exists?(old_digest) ? File.read(old_digest) : ""
if bundle_digest == old_digest
puts "=> There were no changes, doing nothing"
else
if old_digest == ""
puts "=> There was no existing digest, uploading a new version of the archive"
else
puts "=> There were changes, uploading a new version of the archive"
puts " => Old checksum: #{old_digest}"
puts " => New checksum: #{bundle_digest}"
end
puts "=> Preparing bundle archive"
`cd ~ && tar -cjf #{file_name} .bundle && split -b 5m -a 3 #{file_name} #{file_name}.`
parts_pattern = File.expand_path(File.join("~", "#{file_name}.*"))
parts = Dir.glob(parts_pattern).sort
s3 = AWS::S3.new
bucket = s3.buckets[bucket_name]
puts "=> Uploading the bundle"
gem_archive = bucket.objects[file_name]
puts " => Uploading #{parts.length} parts"
gem_archive.multipart_upload(:acl => :public_read) do |upload|
parts.each_with_index do |part, index|
puts " => Uploading #{part}"
File.open part do |part_file|
upload.add_part(part_file)
puts " => Uploaded"
end
end
end
puts " => Completed multipart upload"
puts "=> Uploading the digest file"
hash_object = bucket.objects[digest_filename]
hash_object.write(bundle_digest, :acl => :public_read, :content_type => "text/plain")
end
puts "All done now."
end
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