The workbook kept every cell as an object: a 100 000-row Logs download
took some 400 MB in a web worker. openpyxl's write-only mode writes the
rows as they come (85 MB for the same file, measured), and the Logs rows
are read as tuples, not model objects. The bold, frozen, filtered header,
the column widths and the text cells stay as they were.
- A failed login writes the name it was tried with, as typed: a control
character in it made every download holding that row fail, as the
workbook cannot hold one. Workbooks now write it as \x01; the VM
report shares the code.
- A download held every matching row in memory: it now takes the newest
100000, and its About sheet says when the search should be narrowed.
The Administration menu gets "VM report (.xlsx)", a workbook for
superusers. The VMs sheet has one row per VM on every compute, shut-off
ones and those the panel has not registered too: name,
state, host, OS and OS family, vCPUs, memory, IP addresses and where they
came from, MAC addresses, owners, and whether the panel has registered
it. A Coverage sheet says when it was made and what could not be read.
The addresses come from the same live reading as the address search,
now shared by both. The OS is the guest agent's (libvirt's guest info)
or, without one, the libosinfo id a tool such as virt-install wrote into
the definition. Link-local IPv6 addresses are left out of the report.
Text cells stay text: a VM name starting with "=" is not a formula.
openpyxl 3.1.5 writes the workbook.
