Exclude archiso devices from selectable blockdevices (#1481)

* Exclude liveusb from disk selection

* Exclude arch iso from being an option

* Update

* Update

* Update

* Mypy

Co-authored-by: Daniel Girtler <girtler.daniel@gmail.com>

1 files changed, 40 insertions, 0 deletions

diff --git a/archinstall/lib/disk/diskinfo.py b/archinstall/lib/disk/diskinfo.py
new file mode 100644
index 00000000..b56ba282
--- /dev/null
+++ b/archinstall/lib/disk/diskinfo.py
@@ -0,0 +1,40 @@
+import dataclasses
+import json
+from dataclasses import dataclass, field
+from typing import Optional, List
+
+from ..general import SysCommand
+from ..exceptions import DiskError
+
+@dataclass
+class LsblkInfo:
+	size: int = 0
+	log_sec: int = 0
+	pttype: Optional[str] = None
+	rota: bool = False
+	tran: Optional[str] = None
+	ptuuid: Optional[str] = None
+	partuuid: Optional[str] = None
+	uuid: Optional[str] = None
+	fstype: Optional[str] = None
+	type: Optional[str] = None
+	mountpoints: List[str] = field(default_factory=list)
+
+
+def get_lsblk_info(dev_path: str) -> LsblkInfo:
+	fields = [f.name for f in dataclasses.fields(LsblkInfo)]
+	lsblk_fields = ','.join([f.upper().replace('_', '-') for f in fields])
+
+	output = SysCommand(f'lsblk --json -b -o+{lsblk_fields} {dev_path}').decode('UTF-8')
+
+	if output:
+		block_devices = json.loads(output)
+		info = block_devices['blockdevices'][0]
+		lsblk_info = LsblkInfo()
+
+		for f in fields:
+			setattr(lsblk_info, f, info[f.replace('_', '-')])
+
+		return lsblk_info
+
+	raise DiskError(f'Failed to read disk "{dev_path}" with lsblk')