User supplied sensor-values from file/pipe? Like nvme temperatures via smartctl/grep?

[dukechem]

I took a very brief look at how you are getting info from SMART like this code:
HWSensors/HWMonitor/HWMAtaSmartSensor.m

The attributes for nvme are a whole new game, and it will take a while to incorporate parsing them.
(BTW Parsing smartctl output is notoriously difficult: just ask the gsmartcontrol maintainer ;-)
As a temporary work-around/new-feature request, how possible to have HWMonitor poll a file or pipe where a background script provides current nvme temperatures? Maybe a json or other defined format for user-input? For example, a script could grep the current temperature from last few lines of SMART output for a nvme-samsung960evo in a macpro pcie-adapter, shown below.

Also, btw, is there a command-line option or some other way to periodically log date-stamped sensor values. Assuming, I guess, that this preference is enabled: "Continue to monitor sensors in background" (under Graph prefs). And/or turn on debugging/dumps?

smartctl 6.6 2017-11-05 r4594 [Darwin 17.7.0 x86_64] (local build)
Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Number:                       Samsung SSD 960 EVO 250GB
Serial Number:                      S3ESNX0K475554M
Firmware Version:                   3B7QCXE7
PCI Vendor/Subsystem ID:            0x144d
IEEE OUI Identifier:                0x002538
Total NVM Capacity:                 250,059,350,016 [250 GB]
Unallocated NVM Capacity:           0
Controller ID:                      2
Number of Namespaces:               1
Local Time is:                      Fri Aug 10 17:08:20 2018 EDT
Firmware Updates (0x16):            3 Slots, no Reset required
Optional Admin Commands (0x0007):   Security Format Frmw_DL
Optional NVM Commands (0x001f):     Comp Wr_Unc DS_Mngmt Wr_Zero Sav/Sel_Feat
Maximum Data Transfer Size:         512 Pages
Warning  Comp. Temp. Threshold:     77 Celsius
Critical Comp. Temp. Threshold:     79 Celsius

Supported Power States
St Op     Max   Active     Idle   RL RT WL WT  Ent_Lat  Ex_Lat
 0 +     6.04W       -        -    0  0  0  0        0       0
 1 +     5.09W       -        -    1  1  1  1        0       0
 2 +     4.08W       -        -    2  2  2  2        0       0
 3 -   0.0400W       -        -    3  3  3  3      210    1500
 4 -   0.0050W       -        -    4  4  4  4     2200    6000

=== START OF SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

SMART/Health Information (NVMe Log 0x02, NSID 0x0)
Critical Warning:                   0x00
Temperature:                        40 Celsius
Available Spare:                    100%
Available Spare Threshold:          10%
Percentage Used:                    0%
Data Units Read:                    89,783 [45.9 GB]
Data Units Written:                 172,943 [88.5 GB]
Host Read Commands:                 874,630
Host Write Commands:                818,316
Controller Busy Time:               2
Power Cycles:                       23
Power On Hours:                     27
Unsafe Shutdowns:                   18
Media and Data Integrity Errors:    0
Error Information Log Entries:      0
Warning  Comp. Temperature Time:    0
Critical Comp. Temperature Time:    0
Temperature Sensor 1:               40 Celsius
Temperature Sensor 2:               57 Celsius

Read Error Information Log failed: NVMe admin command:0x02/page:0x01 is not supported