* removed packer.Cache and references since packer.Cache is never used except in the download step. The download step now uses the new func packer.CachePath(targetPath) for this, the behavior is the same.
* removed download code from packer that was reimplemented into the go-getter library: progress bar, http download restart, checksuming from file, skip already downloaded files, symlinking, make a download cancellable by context.
* on windows if packer is running without symlinking rights and we are getting a local file, the file will be copied instead to avoid errors.
* added unit tests for step_download that are now CI tested on windows, mac & linux.
* files are now downloaded under cache dir `sha1(filename + "?checksum=" + checksum) + file_extension`
* since the output dir is based on the source url and the checksum, when the checksum fails, the file is auto deleted.
* a download file is protected and locked by a file lock,
* updated docs
* updated go modules and vendors
The builder is currently failing with the last packer version.
This commit is fixing:
- the ssh keys and configuration management (the config is passed through a pointer and the ssh keys through the config instead of the runner states)
- the key size for generated ssh key
- the public key added as a tag to the instance<Paste>
fix#6757
Alexandre NICOLAIE
Megan Marsh
Adrien Delorme
mvaude
Matthew Hooker
Loïc Carr
Edouard BONLIEU