A bay with an NTLARS/eDNC MachineNo registry is identified by it, and a CMM by cmmid.txt. Everything else - Keyence, Genspect, wax-trace, part markers, and whatever a site declares next - had no stable identity at all, and the two mechanisms that stood in for one both key off the PC: reuse looks for a prior link from THIS PC asset, and minting builds `<PC number>-<SUFFIX>` where a PC's number is its hostname. Both survive a re-image. NEITHER survives a PC SWAP. A new hostname is a new PC asset with no prior link and a predicted number that has never existed, so the same physical device gets a second record while the first keeps its config and its backup history under a dead PC's name. That is how 43 legacy MT-#### tools ended up shadowed by minted twins, three records deep in places. The metrology path learned this and gained an explicit id file; the part-marker path was modelled on the metrology path as it stood BEFORE that fix, so it inherited the defect - and its own docstring said so, describing minting "the same way it already mints a CMM". C:\Enrollment\asset-id.txt is now that identity for both, and for anything declared later through subordinatedevice_<pctype>. It holds one line, the device's assetnumber, and deliberately does NOT record what kind of device it is: the pc-type already does, so a new device type needs no new file and no client change. Resolution puts it first, ahead of everything PC-derived. NOT machine-number.txt. machinenumber answers "which bay is this" and is what GE-Enforce TargetMachineNumbers gates on, so naming a device there would silently stop every bay-gated manifest entry from matching. A part marker still files partof the operation from machinenumber; asset-id.txt changes which marker the PC controls, not which operation that marker belongs to. The wire field is `deviceid` rather than `assetid`, because assetid is already this contract's RESPONSE field for a PC's integer primary key - the two would have sat side by side meaning different things. measuringtoolid, shipped in 0.12.0, is accepted as an alias and the client still reads the older file, so a bay staged in the last day keeps reporting; deviceid wins when both arrive. Two guards, shared by both device families: a value that resolves to nothing warns instead of minting a phantom, and a value that resolves to the WRONG KIND of asset is refused with the asset named, so a machine number pasted into the file cannot be filed under a device label the collector also owns. Row creation is now one helper instead of a copy per path, because the named and minted branches both need get-or-create on the extension row and the control link. 1744 tests green, including a new file that pins the swap case both ways - with the file one device, without it two. Five of its tests failed first time because the fixtures built bare assets with no extension row and the type guard refused them, which is the guard working. VERIFIED ON WINDOWS 11 (build 26200), five cases: the new file alone; both files present, new winning; the legacy file alone; neither, sending no field; and a padded value with a trailing line.
76 KiB
76 KiB