clean up main

src/sys.cpp

@@ -24,3 +24,27 @@ std::array<std::string, 2> getTimeDate() {
     date << wdays[tm.tm_wday] << ", " << tm.tm_mday << " " << months[tm.tm_mon];
     return {time.str(), date.str()};
 }
+
+mem_usage_t getRam() {
+    mem_usage_t mem;
+    std::ifstream proc_meminfo("/proc/meminfo");
+
+    if (proc_meminfo.good()) {
+        std::string content((std::istreambuf_iterator<char>(proc_meminfo)), std::istreambuf_iterator<char>());
+        mem.free = get_val("MemAvailable:", content);
+        mem.total = get_val("MemTotal:", content);
+        mem.used = mem.total - mem.free;
+    }
+    proc_meminfo.close();
+    return mem;
+}
+
+mem_usage_t getDisk(std::string mount) {
+    mem_usage_t disk;
+    struct statvfs diskData;
+    statvfs(mount.c_str(), &diskData);
+    disk.free = diskData.f_bfree * diskData.f_frsize;
+    disk.used = (diskData.f_blocks - diskData.f_bfree) * diskData.f_frsize;
+    disk.total = diskData.f_blocks * diskData.f_frsize;
+    return disk;
+}

src/utils.cpp

@@ -11,6 +11,13 @@ std::string pNum(float num, uint8_t decs) {
     return pNum((double)num, decs);
 }
 
+// pads given string to length
+std::string pad(std::string s, uint8_t len, bool ljust) {
+    if (len > s.size())
+        s.insert(ljust ? s.end() : s.begin(), len - s.size(), FILL_CHAR);
+    return s;
+}
+
 
 // converts large number in (k)bytes to human readable numer with suffix and sane decimal
 std::string pBytes(double bytes, bool isKbytes) {