Fix firmware uploading using serial port with spaces in the path

platformio/builder/scripts/atmelavr.py

@@ -47,7 +47,7 @@ def BeforeUpload(target, source, env):  # pylint: disable=W0613,W0621
         return
 
     env.AutodetectUploadPort()
-    env.Append(UPLOADERFLAGS=["-P", "$UPLOAD_PORT"])
+    env.Append(UPLOADERFLAGS=["-P", '"$UPLOAD_PORT"'])
 
     if env.subst("$BOARD") == "raspduino":
 

platformio/builder/scripts/atmelsam.py

@@ -84,7 +84,7 @@ else:
         UPLOADER=join("$PIOPACKAGES_DIR", "$PIOPACKAGE_UPLOADER", "bossac"),
         UPLOADERFLAGS=[
             "--info",
-            "--port", "$UPLOAD_PORT",
+            "--port", '"$UPLOAD_PORT"',
             "--erase",
             "--write",
             "--verify",

platformio/builder/scripts/espressif.py

@@ -118,7 +118,7 @@ env.Replace(
         "-vv",
         "-cd", "$UPLOAD_RESETMETHOD",
         "-cb", "$UPLOAD_SPEED",
-        "-cp", "$UPLOAD_PORT"
+        "-cp", '"$UPLOAD_PORT"'
     ],
     UPLOADEROTAFLAGS=[
         "--debug",
@@ -292,7 +292,7 @@ else:
             "-vv",
             "-cd", "$UPLOAD_RESETMETHOD",
             "-cb", "$UPLOAD_SPEED",
-            "-cp", "$UPLOAD_PORT",
+            "-cp", '"$UPLOAD_PORT"',
             "-ca", "0x00000",
             "-cf", "${SOURCES[0]}",
             "-ca", "0x40000",

platformio/builder/scripts/nordicnrf51.py

@@ -32,7 +32,7 @@ if env.subst("$BOARD") == "rfduino":
     )
     env.Replace(
         UPLOADER=join("$PIOPACKAGES_DIR", "tool-rfdloader", "rfdloader"),
-        UPLOADERFLAGS=["-q", "$UPLOAD_PORT"],
+        UPLOADERFLAGS=["-q", '"$UPLOAD_PORT"'],
         UPLOADCMD='"$UPLOADER" $UPLOADERFLAGS $SOURCES'
     )