gistfile1.rb

#!/usr/local/bin/ruby
#
# Keeps backups for odrible for the last 7 days
#
# Assumes backups are stored in the dir referenced by the
# constant BACKUP_DIR.
#
# Assumes backup file names are in the formats '20101217002634.mysql-backup-sftp-odrible2.sql.gz.enc'
require 'date'

BACKUP_DIR = "/home/deploy/bkp/"
DAYS_TO_KEEP_BACKUP = 3

# Get the file names of all odrible backups in BACKUP_DIR.
odrible_backup_files = Dir.glob(BACKUP_DIR + '*.mysql-backup-sftp-odrible*.sql.gz.enc')

odrible_backup_files.each do |file|
  # Get the date in the filename in the format 20100920004501 and creates a new Date object.
  date_string = file.match(/\d{14}/).to_s
  unless date_string.empty?
    year = date_string[0..3];  month = date_string[4..5];  day = date_string[6..7]
    hour = date_string[8..9];  min = date_string[10..11];  sec = date_string[12..13]
    date = Time.utc(year, month, day, hour, min, sec).send(:to_date)

    # Delete the file if it is more than the specified number of days old.
    File.delete(file) if date < (Date.today - DAYS_TO_KEEP_BACKUP + 1)
  end
end


# Get the file names of all dengueville backups in BACKUP_DIR.
dv_backup_files = Dir.glob(BACKUP_DIR + 'dengueville_backup_*.tar.gz')

dv_backup_files.each do |file|
  # Get the date in the filename in the format 20100920004501 and creates a new Date object.
  date_string = file.match(/\d{14}/).to_s
  unless date_string.empty?
    year = date_string[0..3];  month = date_string[4..5];  day = date_string[6..7]
    hour = date_string[8..9];  min = date_string[10..11];  sec = date_string[12..13]
    date = Time.utc(year, month, day, hour, min, sec).send(:to_date)

    # Delete the file if it is more than the specified number of days old.
    File.delete(file) if date < (Date.today - 2)
  end
end