backup_to_s3: Backups a list of folders into S3
In rebordao/myrutils: My R Utils

Description Usage Arguments

This function backups a list of folders into S3. It requires that you:

install the AWS CLI;
configure a profile in file ~/.aws/credentials;
create an s3 bucket where the profile can read/write into;
create a yaml file containing the list of folders for backup.

Optionally it's possible to define file/folder/pattern exclusions.
To avoid concurrent cronjobs I implemented a PIDfile-based method (checks if last PID is still active; if yes, do nothing; if not, execute).

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backup_to_s3(bucket, root_folder, profile, dryrun = T,
  folders_file = "~/.folders_to_backup.yml",
  exclusions_file = "~/.exclusions_from_backup.yml")

`bucket`	Is the name of the s3 bucket where the backup is stored.
`root_folder`	Is the name of the root folder where the backup is stored. If it doesn't exist, it's created automatically.
`profile`	Is a profile name contained in ~/.aws/credentials.
`dryrun`	When equal to T doesn't backup. Only does simulation.
`folders_file`	Is the path of the file that contains the folders to backup. By default is ~/.folders_to_backup.yml. Example file in folder inst/config.
`exclusions_file`	is the path of the file (if applicable) that contains the folders or patterns to exclude from the backup. By default is ~/.exclusions_from_backup.yml. Example file in folder inst/config.