Rick Harris 87a47abee8 Add resumable downloads ... Since VM images can be fairly large and connections rather flaky, it would be nice to support resumable downloads whereby, if a download is interrupted for some reason, on the next attempt, it picks up where it left off. To implement this, the following changes were made: * The temporary download filename is now constructed from a SHA1 of the `box_url` instead of a timestamp. This allows separate invocations of Vagrant to 'share' the download-path if the URLs exactly match. * Add `--continue-at -` option to `curl` which tells it to automatically resume downloading where it left off * Modify the `recover` method in `box_add` to not remove the temporary download path if the download was interrupted Known Issue: * The progress on a resumed download will look a bit wonky in the sense that, it starts at 0% each time, instead of where it left off. Since Vagrant is pulling this directly from `curl`, this is more of an upstream issue. Fixes #57		2013-11-20 15:15:38 -06:00
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vagrant	Add resumable downloads	2013-11-20 15:15:38 -06:00
vagrant.rb	core: fix NoMethodError in Vagrant.has_plugin? [GH-1736]	2013-09-11 15:13:21 -05:00