Resume FTP downloads by default

Gemfile

@@ -6,4 +6,4 @@ group :test do
   gem 'codeclimate-test-reporter', '~> 1.0'
 end
 
-gem 'rake', '~> 12.0'
+gem 'rake', '~> 13.0'

lib/miga/cli/action/db.rb

@@ -237,7 +237,9 @@ def check_digest(ver, file)
     cli.say '' if cli[:pb]
     dig = md5.hexdigest
     cli.say "Observed: #{dig}"
-    raise 'Corrupt file, MD5 does not match' unless dig == ver[:MD5]
+    unless dig == ver[:MD5]
+      raise "Corrupt file, MD5 differs. Remove #{file} before trying again"
+    end
   end
 
   def version_size(ver)

lib/miga/common/net.rb

@@ -49,6 +49,7 @@ def remote_connection(host)
     when 'ftp'
       ftp = Net::FTP.new(uri.host)
       ftp.passive = true
+      ftp.resume  = true
       ftp.login
       ftp.chdir(uri.path) unless host.is_a?(URI)
       ftp
@@ -87,7 +88,8 @@ def download_file_ftp(connection, file = nil, target = nil)
     # Prepare download
     FileUtils.mkdir_p(File.dirname(target)) if target
     filesize = connection.size(file)
-    transferred = 0
+    transferred =
+      target && connection.resume && File.exist?(target) ? File.size(target) : 0
 
     # Get in chunks of 1KiB
     ret = ''

lib/miga/version.rb

@@ -12,7 +12,7 @@ module MiGA
   # - String indicating release status:
   #   - rc* release candidate, not released as gem
   #   - [0-9]+ stable release, released as gem
-  VERSION = [1.3, 15, 9].freeze
+  VERSION = [1.3, 15, 10].freeze
 
   ##
   # Nickname for the current major.minor version.