Use util.get_systype when checking for system

platformio/builder/tools/piolib.py

@@ -23,7 +23,6 @@ import sys
 from glob import glob
 from os.path import (basename, commonprefix, dirname, isdir, isfile, join,
                      realpath, sep)
-from platform import system
 
 import SCons.Scanner
 from SCons.Script import ARGUMENTS, COMMAND_LINE_TARGETS, DefaultEnvironment
@@ -82,6 +81,8 @@ class LibBuilderFactory(object):
 
 class LibBuilderBase(object):
 
+    IS_WINDOWS = "windows" in util.get_systype()
+
     LDF_MODES = ["off", "chain", "deep", "chain+", "deep+"]
     LDF_MODE_DEFAULT = "chain"
 
@@ -119,7 +120,7 @@ class LibBuilderBase(object):
     def __contains__(self, path):
         p1 = self.path
         p2 = path
-        if system() == "Windows":
+        if self.IS_WINDOWS:
             p1 = p1.lower()
             p2 = p2.lower()
         return commonprefix((p1 + sep, p2)) == p1 + sep

platformio/builder/tools/pioupload.py

@@ -18,7 +18,6 @@ import sys
 from fnmatch import fnmatch
 from os import environ
 from os.path import isfile, join
-from platform import system
 from shutil import copyfile
 from time import sleep
 
@@ -133,7 +132,7 @@ def AutodetectUploadPort(*args, **kwargs):  # pylint: disable=unused-argument
             port = item['port']
             if upload_protocol.startswith("blackmagic") \
                     and "GDB" in item['description']:
-                return ("\\\\.\\%s" % port if system() == "Windows"
+                return ("\\\\.\\%s" % port if "windows" in util.get_systype()
                         and port.startswith("COM") and len(port) > 4 else port)
             for hwid in board_hwids:
                 hwid_str = ("%s:%s" % (hwid[0], hwid[1])).replace("0x", "")
@@ -149,7 +148,7 @@ def AutodetectUploadPort(*args, **kwargs):  # pylint: disable=unused-argument
             and not env.subst("$UPLOAD_PROTOCOL"):
         env.Replace(UPLOAD_PORT=_look_for_mbed_disk())
     else:
-        if (system() == "Linux" and not any([
+        if ("linux" in util.get_systype() and not any([
                 isfile("/etc/udev/rules.d/99-platformio-udev.rules"),
                 isfile("/lib/udev/rules.d/99-platformio-udev.rules")
         ])):

platformio/util.py

@@ -431,7 +431,7 @@ def get_serial_ports(filter_hwid=False):
     for p, d, h in comports():
         if not p:
             continue
-        if platform.system() == "Windows":
+        if "windows" in get_systype():
             try:
                 d = unicode(d, errors="ignore")
             except TypeError:
@@ -443,7 +443,7 @@ def get_serial_ports(filter_hwid=False):
         return result
 
     # fix for PySerial
-    if not result and platform.system() == "Darwin":
+    if not result and "darwin" in get_systype():
         for p in glob("/dev/tty.*"):
             result.append({"port": p, "description": "n/a", "hwid": "n/a"})
     return result
@@ -455,7 +455,7 @@ get_serialports = get_serial_ports
 
 def get_logical_devices():
     items = []
-    if platform.system() == "Windows":
+    if "windows" in get_systype():
         try:
             result = exec_command(
                 ["wmic", "logicaldisk", "get", "name,VolumeName"]).get(