Ignore "[platformio]" section from custom project configuration CI

HISTORY.rst

@@ -15,6 +15,9 @@ PlatformIO 2.0
 * Improved project generator for `CLion IDE <http://docs.platformio.org/en/latest/ide/clion.html>`__
 * Auto-remove project cache when PlatformIO is upgraded
 * Keep user changes for ``.gitignore`` file when re-generate/update project data
+* Ignore ``[platformio]`` section from custom project configuration file when
+  `platformio ci --project-conf <http://docs.platformio.org/en/latest/userguide/cmd_ci.html>`__
+  command is used
 * Fixed missed ``--boot`` flag for the firmware uploader for ATSAM3X8E
   Cortex-M3 MCU based boards (Arduino Due, etc)
   (`issue #710 <https://github.com/platformio/platformio/issues/710>`_)

platformio/__init__.py

@@ -14,7 +14,7 @@
 
 import sys
 
-VERSION = (2, 11, "1b1")
+VERSION = (2, 11, "1b2")
 __version__ = ".".join([str(s) for s in VERSION])
 
 __title__ = "platformio"

platformio/commands/ci.py

@@ -27,6 +27,12 @@ from platformio.commands.run import cli as cmd_run
 from platformio.exception import CIBuildEnvsEmpty
 from platformio.util import get_boards
 
+# pylint: disable=wrong-import-order
+try:
+    from configparser import ConfigParser
+except ImportError:
+    from ConfigParser import ConfigParser
+
 
 def validate_path(ctx, param, value):  # pylint: disable=W0613
     invalid_path = None
@@ -91,7 +97,7 @@ def cli(ctx, src, lib, exclude, board,  # pylint: disable=R0913
             _copy_contents(join(build_dir, dir_name), contents)
 
         if project_conf and isfile(project_conf):
-            copyfile(project_conf, join(build_dir, "platformio.ini"))
+            _copy_project_conf(build_dir, project_conf)
         elif not board:
             raise CIBuildEnvsEmpty()
 
@@ -157,3 +163,12 @@ def _exclude_contents(dst_dir, patterns):
             rmtree(path)
         elif isfile(path):
             remove(path)
+
+
+def _copy_project_conf(build_dir, project_conf):
+    cp = ConfigParser()
+    cp.read(project_conf)
+    if cp.has_section("platformio"):
+        cp.remove_section("platformio")
+    with open(join(build_dir, "platformio.ini"), "w") as fp:
+        cp.write(fp)