* fix: prevent empty .vif files from ec.decode causing parse errors
When ec.decode copies .vif files from EC shard nodes, if a source node
doesn't have the .vif file, an empty .vif file was created on the target
node. This caused volume.configure.replication to fail with 'proto: syntax
error' when trying to parse the empty file.
This fix:
1. In writeToFile: Remove empty files when no data was written (source
file was not found) to avoid leaving corrupted empty files
2. In MaybeLoadVolumeInfo: Handle empty .vif files gracefully by treating
them as non-existent, allowing the system to create a proper one
Fixes#7666
* refactor: remove redundant dst.Close() and add error logging
Address review feedback:
- Remove redundant dst.Close() call since defer already handles it
- Add error logging for os.Remove() failure
* Add Rclone storage backend
* Support templating the name of files stored via Rclone
* Enable Rclone accounting
* Remove redundant type conversion
* Provide progress information for Rclone download/upload operations
* Log error when Rclone can't instantiate filesystem
* Remove filename templating functionality for Rclone storage
To (maybe) be later reintroduced as a generic functionality for all
storage backends.
* Remove S3 specific check
* Move Rclone config initialisation to init() method
The io/ioutil package has been deprecated as of Go 1.16, see
https://golang.org/doc/go1.16#ioutil. This commit replaces the existing
io/ioutil functions with their new definitions in io and os packages.
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
