List BTRFS subvolume space use information similar to df -h with paths displayed.
Normally, btrfs qgroup show lists subvolumes, but only by id:
$ btrfs qgroup show /mnt/somebtrfsvol --human-readable --sort=-excl
qgroupid rfer excl
-------- ---- ----
0/2317 848.55GiB 24.35GiB
0/3217 883.62GiB 16.04GiB
0/1998 840.20GiB 16.01GiB
0/489 160.81GiB 8.01GiB
0/7125 227.62GiB 2.21GiB
0/7202 230.20GiB 982.49MiB
This script saves looking up path information with btrfs subvolume list as paths
are added to the output:
$ ./btrfs-subvolumes.py /mnt/somebtrfsvol --human-readable --sort=-excl
path qgroupid rfer excl
---- -------- ---- ----
Photos/Photos.20160703 0/2317 848.55GiB 24.35GiB
Photos/Photos.20161106 0/3217 883.62GiB 16.04GiB
Photos/Photos.20160605 0/1998 840.20GiB 16.01GiB
Archive/Archive.20160504 0/489 160.81GiB 8.01GiB
timemachine/timemachine.20170716 0/7125 227.62GiB 2.21GiB
timemachine/timemachine.20170723 0/7202 230.20GiB 982.49MiB
For this to work on a BTRFS volume, you first need to enable quotas on the volume:
btrfs quota enable /mnt/some-volumeAll arguments are passed through to btrfs qgroup show, so you can get started with:
./btrfs-subvolumes.py /mnt/some-volume -hThe current version of this script does not allow sorting by path as it passes all arugments through to btrfsprogs. If you need sorting by path, either submit a PR or use the original version of the script here.
This was originally based on a shell script that was too slow.