linux: Log missing /etc/os-release file

Author: mihawk90

checks/linux.py

@@ -51,8 +51,14 @@ def checkDistro(lines):
     distro = isDistroNix[0].split()
     distro = distro[2:]
     distro = ' '.join(distro)
+    distroHelp = ''
 
-    return [LEVEL_INFO, distro, ""]
+    # this is logged when the file can't be found at all
+    if distro == 'Missing /etc/os-release !':
+        distro = '(Missing)'
+        distroHelp = 'No distribution detected. This can lead to undefined behaviour. Please consult your distribution\'s support channels on how to fix this.<br>'
+
+    return [LEVEL_INFO, distro, distroHelp]
 
 
 def checkFlatpak(lines):
@@ -178,12 +184,12 @@ def checkLinuxVCam(lines):
 
 
 def checkLinuxSystemInfo(lines):
-    if checkFlatpak(lines):
+    if flatpak := checkFlatpak(lines):
         linuxDistroOrFlatpak = 'Flatpak'
-        linuxSystemInfoHelp = checkFlatpak(lines)[2] + '<br>'
-    elif checkDistro(lines):
-        linuxDistroOrFlatpak = 'Distribution: ' + checkDistro(lines)[1]
-        linuxSystemInfoHelp = ''
+        linuxSystemInfoHelp = flatpak[2] + '<br>'
+    elif distro := checkDistro(lines):
+        linuxDistroOrFlatpak = 'Distribution: ' + distro[1]
+        linuxSystemInfoHelp = distro[2]
     else:
         return