Include Mac serial number in OST Post

scripts/wk/hw/diags.py

@@ -1291,6 +1291,8 @@ def ost_build_report(dev, dev_type):
   report.append(dev.description)
   if hasattr(dev, 'ram_total'):
     report.append(f'{dev.ram_total} ({", ".join(dev.ram_dimms)})')
+  if hasattr(dev, 'serial') and dev.serial:
+    report.append(f'Serial Number: {dev.serial}')
   report.append('')
 
   # Notes

scripts/wk/hw/obj.py

@@ -35,6 +35,7 @@ NVME_WARNING_KEYS = (
   'reliability_degraded',
   'volatile_memory_backup_failed',
   )
+MAC_SERIAL_REGEX = re.compile(r'Serial Number.*?:\s+(?P<serial>.*)\n')
 WK_LABEL_REGEX = re.compile(
   fr'{KIT_NAME_SHORT}_(LINUX|UFD)',
   re.IGNORECASE,
@@ -75,11 +76,13 @@ class CpuRam(BaseObj):
     self.details = {}
     self.ram_total = 'Unknown'
     self.ram_dimms = []
+    self.serial = ''
     self.tests = OrderedDict()
 
     # Update details
     self.get_cpu_details()
     self.get_ram_details()
+    self.get_serial_number()
 
   def generate_report(self):
     """Generate CPU & RAM report, returns list."""
@@ -146,6 +149,14 @@ class CpuRam(BaseObj):
       f'{count}x {desc}' for desc, count in sorted(details.items())
       ]
 
+  def get_serial_number(self):
+    if PLATFORM == 'Darwin':
+      cmd = ['system_profiler', 'SPHardwareDataType']
+      proc = run_program(cmd, check=False)
+      match = MAC_SERIAL_REGEX.search(proc.stdout)
+      if match:
+        self.serial = match['serial'].strip()
+
 
 class Disk(BaseObj):
   """Object for tracking disk specific data."""