diff options
Diffstat (limited to 'byteback-snapshot')
| -rwxr-xr-x | byteback-snapshot | 64 |
1 files changed, 7 insertions, 57 deletions
diff --git a/byteback-snapshot b/byteback-snapshot index 37834d4..a14e0f8 100755 --- a/byteback-snapshot +++ b/byteback-snapshot @@ -14,13 +14,7 @@ opts = Trollop::options do opt :root, "Backups directory (must be a btrfs subvolume)", :type => :string - opt :snapshot, "Take a new snapshot" - - opt :prune, "Prune old backups (by 'age' or 'importance')", - :type => :string - - opt :list, "List backups (by 'age' or 'importance')", - :type => :string + opt :snapshot, "(ignored for compatibility)" opt :verbose, "Print diagnostics" @@ -28,61 +22,17 @@ end @root = opts[:root] @verbose = opts[:verbose] -@do_snapshot = opts[:snapshot] -@do_list = opts[:list] -@do_prune = opts[:prune] - -fatal("Must specify snapshot, prune or list") unless @do_snapshot || @do_prune || @do_list fatal("--root not readable") unless File.directory?("#{@root}") @backups = BackupDirectory.new(@root) -def get_snapshots_by(method) - if method == 'importance' - @backups.snapshot_times_by_importance.reverse # least important first - elsif method == 'age' - @backups.snapshot_times - else - raise ArgumentError.new("Unknown snapshot sort method #{method}") - end -end - -if @do_snapshot - last_snapshot_time = @backups.snapshot_times.last - fatal("Last snapshot was less than six hours ago") unless - !last_snapshot_time || - Time.now - @backups.snapshot_times.last >= 6*60*60 # FIXME: make configurable +last_snapshot_time = @backups.snapshot_times.last +fatal("Last snapshot was less than six hours ago") unless + !last_snapshot_time || + Time.now - @backups.snapshot_times.last >= 6*60*60 # FIXME: make configurable - info "Making new snapshot" - @backups.new_snapshot! -end - -if @do_list - list = get_snapshots_by(@do_list) - print "Backups in #{@root} by #{@do_list}:\n" - list.each_with_index do |time, index| - print "#{sprintf('% 3d',index)}: #{time}\n" - end -end - -if @do_prune - info "Counting last 10 backups" - target_free_space = 1.5 * @backups.average_snapshot_size(10) - info "Want to ensure we have #{target_free_space}" - - if @backups.free >= target_free_space - info "(we have #{@backups.free} so no action needed)" - else - list = get_snapshots_by(@do_prune) - - while @backups.free < target_free_space && !list.empty? - to_delete = list.pop - info "Deleting #{to_delete}" - @backups.delete_snapshot!(to_delete) - info "Leaves us with #{@backups.free}" - end - end -end +info "Making new snapshot" +@backups.new_snapshot! info "Finished" |