vagrant/lib/vagrant/util/curl_helper.rb

97 lines
3.2 KiB
Ruby

module Vagrant
module Util
class CurlHelper
# Hosts that do not require notification on redirect
SILENCED_HOSTS = [
"vagrantcloud.com".freeze,
"vagrantup.com".freeze
].freeze
def self.capture_output_proc(logger, ui, source=nil)
progress_data = ""
progress_regexp = /^\r\s*(\d.+?)\r/m
# Setup the proc that'll receive the real-time data from
# the downloader.
data_proc = Proc.new do |type, data|
# Type will always be "stderr" because that is the only
# type of data we're subscribed for notifications.
# Accumulate progress_data
progress_data << data
while true
# If the download has been redirected and we are no longer downloading
# from the original host, notify the user that the target host has
# changed from the source.
if progress_data.include?("Location")
location = progress_data.scan(/(^|[^\w-])Location: (.+?)$/m).flatten.compact.last.to_s.strip
if !location.empty?
location_uri = URI.parse(location)
unless location_uri.host.nil?
redirect_notify = false
logger.info("download redirected to #{location}")
source_uri = URI.parse(source)
source_host = source_uri.host.to_s.split(".", 2).last
location_host = location_uri.host.to_s.split(".", 2).last
if !redirect_notify && location_host != source_host && !SILENCED_HOSTS.include?(location_host)
ui.clear_line
ui.detail "Download redirected to host: #{location_uri.host}"
end
redirect_notify = true
end
end
progress_data.replace("")
break
end
# If we have a full amount of column data (two "\r") then
# we report new progress reports. Otherwise, just keep
# accumulating.
match = nil
check_match = true
while check_match
check_match = progress_regexp.match(progress_data)
if check_match
data = check_match[1].to_s
stop = progress_data.index(data) + data.length
progress_data.slice!(0, stop)
match = check_match
end
end
break if !match
# Ignore the first \r and split by whitespace to grab the columns
columns = data.strip.split(/\s+/)
# COLUMN DATA:
#
# 0 - % total
# 1 - Total size
# 2 - % received
# 3 - Received size
# 4 - % transferred
# 5 - Transferred size
# 6 - Average download speed
# 7 - Average upload speed
# 9 - Total time
# 9 - Time spent
# 10 - Time left
# 11 - Current speed
output = "Progress: #{columns[0]}% (Rate: #{columns[11]}/s, Estimated time remaining: #{columns[10]})"
ui.clear_line
ui.detail(output, new_line: false)
end
end
return data_proc
end
end
end
end