Change to using aria2 as a downloader

Ealdwulf commented 9 years ago

@alex5imon This branch should fix #20 . It is also based on the previous PR#39 and is therefore the proposed version which fixes #30 and #31 , and #29 #28 #22 #21 #20 #19 #12 #9

I have made test binaries which are linked to in #30 and #31.

Use aria2 as downloader on both OSx and windows. This should be more reliable because when aria2 retries it doesn't restart the download. Note that the number of retries is fixed at 5 and there is no GUI to modify it, so if we think it needs to be increased then we need to bump a new version.
In theory this would allow us to use metalink or bittorrent in the future, but I haven't tried this. For testing there is also an environment variable KANO_BURNER_TEST_URL which allows you to point at a different server/image.

alex5imon commented 9 years ago

@Ealdwulf amazing work. Feel free to merge when ready

Ealdwulf commented 9 years ago

Thanks! Merging...

KanoComputing / kano-burners

Change to using aria2 as a downloader #40