misc: refactored code to work as a setup.py based package

Signed-off-by: Simone Margaritelli <evilsocket@gmail.com>

pwnagotchi/__init__.py

@@ -0,0 +1,48 @@
+import subprocess
+
+version = '1.0.0plz4'
+
+_name = None
+
+
+def name():
+    global _name
+    if _name is None:
+        with open('/etc/hostname', 'rt') as fp:
+            _name = fp.read().strip()
+    return _name
+
+
+def mem_usage():
+    out = subprocess.getoutput("free -m")
+    for line in out.split("\n"):
+        line = line.strip()
+        if line.startswith("Mem:"):
+            parts = list(map(int, line.split()[1:]))
+            tot = parts[0]
+            used = parts[1]
+            free = parts[2]
+            return used / tot
+
+    return 0
+
+
+def cpu_load():
+    with open('/proc/stat', 'rt') as fp:
+        for line in fp:
+            line = line.strip()
+            if line.startswith('cpu '):
+                parts = list(map(int, line.split()[1:]))
+                user_n = parts[0]
+                sys_n = parts[2]
+                idle_n = parts[3]
+                tot = user_n + sys_n + idle_n
+                return (user_n + sys_n) / tot
+    return 0
+
+
+def temperature(celsius=True):
+    with open('/sys/class/thermal/thermal_zone0/temp', 'rt') as fp:
+        temp = int(fp.read().strip())
+    c = int(temp / 1000)
+    return c if celsius else ((c * (9 / 5)) + 32)