CPU (Linux): try detecting CPU name using lscpu

Fix #567

CHANGELOG.md

@@ -28,6 +28,7 @@ Features:
 * Support Windows Service Pack version detection (Kernel, Windows)
 * Support Debian point releases detection (OS, Linux)
 * Add new module `NetIO` which prints network throughput (usage) of specified interface. Note this module costs about 1 second to finish.
+* Use `lscpu` to detect CPU name for ARM CPUs (CPU, Linux)
 
 Bugfixes:
 * Fix fastfetch hanging in specific environment (#561)

src/detection/cpu/cpu_linux.c

@@ -1,5 +1,6 @@
 #include "cpu.h"
 #include "common/io/io.h"
+#include "common/processing.h"
 #include "common/properties.h"
 #include "detection/temps/temps_linux.h"
 #include "util/mallocHelper.h"
@@ -50,6 +51,16 @@ static const char* parseCpuInfo(FFCPUResult* cpu, FFstrbuf* physicalCoresBuffer,
         );
     }
 
+    if (cpu->name.length == 0)
+    {
+        FF_STRBUF_AUTO_DESTROY buffer = ffStrbufCreate();
+        if (!ffProcessAppendStdOut(&buffer, (char *const[]) { "lscpu", NULL }))
+        {
+            ffParsePropLines(buffer.chars, "Model name:", &cpu->name);
+            if (ffStrbufEqualS(&cpu->name, "-")) ffStrbufClear(&cpu->name);
+        }
+    }
+
     return NULL;
 }