Synchronize content of two buckets/directories

The gs_rsync function makes the contents under destination the same as the contents under source, by copying any missing files/objects (or those whose data has changed), and (if the delete option is specified) deleting any extra files/objects. source must specify a directory, bucket, or bucket subdirectory.

gs_rsync(source, destination, delete = FALSE, recursive = FALSE,
  parallel = TRUE, dry_run = FALSE, options = NULL, echo = TRUE)

Arguments

source	The file to be copied. This can be either a path on the local filesystem, or a Google Storage URI (e.g. `gs://[BUCKET_NAME]/[FILENAME.CSV]`).
destination	The location where the `source` file should be copied to. This can be either a path on the local filesystem, or a Google Storage URI (e.g. `gs://[BUCKET_NAME]/[FILENAME.CSV]`).
delete	Delete extra files under `destination` not found under `source` By default extra files are not deleted.
recursive	Causes directories, buckets, and bucket subdirectories to be synchronized recursively. If you neglect to use this option `gs_rsync()` will make only the top-level directory in the source and destination URLs match, skipping any sub-directories.
parallel	Causes synchronization to run in parallel. This can significantly improve performance if you are performing operations on a large number of files over a reasonably fast network connection.
dry_run	Causes rsync to run in "dry run" mode, i.e., just outputting what would be copied or deleted without actually doing any copying/deleting.
options	Character vector of additional command line options to the gsutil rsync command (as specified at https://cloud.google.com/storage/docs/gsutil/commands/rsync).
echo	Echo command output to console