Request for new btrfs subvolume subcommand:
tree <path>
Display a depth indented listing of subvolumes present in the
filesystem <path>.
---or---
list ... --tree ...
...
-tree
display subvolumes in a depth indented listing.
Would (I think):
* Display each top-level subvolume
* Recursively display each subvolume under its parent (using top level
ID against ID)
In the format:
/
├── a
│ ├── 1
├── b
│ ├── 1
│ └── 2
└── c
/other
└── d
The actual program "tree" does not work for this application. It
shows all directories and files, not just the subvolumes. It has a
"-d" option that only shows directories, which is better, but it still
shows directories that are not subvolumes.
"btrfs subvolume list /" can show 10 lines, with "tree -d" on a
freshly installed system can show over 240,000 lines.
I think it's more likely for btrfs-progs to be able to implement this,
than asking tree to make btrfs-specific code.
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