Remove unused Python imports

platformio/commands/debug/client.py

@@ -30,6 +30,7 @@ from platformio.commands.debug import helpers, initcfgs
 from platformio.commands.debug.process import BaseProcess
 from platformio.commands.debug.server import DebugServer
 from platformio.compat import PY2
+from platformio.project.helpers import get_project_cache_dir
 from platformio.telemetry import MeasurementProtocol
 
 LOG_FILE = None
@@ -49,10 +50,10 @@ class GDBClient(BaseProcess):  # pylint: disable=too-many-instance-attributes
         self._debug_server = DebugServer(debug_options, env_options)
         self._session_id = None
 
-        if not isdir(util.get_cache_dir()):
-            os.makedirs(util.get_cache_dir())
+        if not isdir(get_project_cache_dir()):
+            os.makedirs(get_project_cache_dir())
         self._gdbsrc_dir = mkdtemp(
-            dir=util.get_cache_dir(), prefix=".piodebug-")
+            dir=get_project_cache_dir(), prefix=".piodebug-")
 
         self._target_is_run = False
         self._last_server_activity = 0

platformio/commands/debug/command.py

@@ -24,6 +24,7 @@ from platformio import exception, util
 from platformio.commands.debug import helpers
 from platformio.managers.core import inject_contrib_pysite
 from platformio.project.config import ProjectConfig
+from platformio.project.helpers import is_platformio_project
 
 
 @click.command(
@@ -66,7 +67,7 @@ def cli(ctx, project_dir, project_conf, environment, verbose, interface,
                 ('~"%s\\n"' if helpers.is_mi_mode(__unprocessed) else "%s") %
                 line)
 
-    if not util.is_platformio_project(project_dir) and os.getenv("CWD"):
+    if not is_platformio_project(project_dir) and os.getenv("CWD"):
         project_dir = os.getenv("CWD")
 
     with util.cd(project_dir):

platformio/commands/debug/process.py

@@ -17,9 +17,9 @@ import os
 import click
 from twisted.internet import protocol  # pylint: disable=import-error
 
-from platformio import util
 from platformio.commands.debug import helpers
 from platformio.compat import string_types
+from platformio.project.helpers import get_project_core_dir
 
 LOG_FILE = None
 
@@ -29,7 +29,8 @@ class BaseProcess(protocol.ProcessProtocol, object):
     STDOUT_CHUNK_SIZE = 2048
 
     COMMON_PATTERNS = {
-        "PLATFORMIO_HOME_DIR": helpers.escape_path(util.get_home_dir()),
+        "PLATFORMIO_HOME_DIR": helpers.escape_path(get_project_core_dir()),
+        "PLATFORMIO_CORE_DIR": helpers.escape_path(get_project_core_dir()),
         "PYTHONEXE": os.getenv("PYTHONEXEPATH", "")
     }
 

platformio/commands/debug/server.py

@@ -20,6 +20,7 @@ from twisted.internet import reactor  # pylint: disable=import-error
 from platformio import exception, util
 from platformio.commands.debug import helpers
 from platformio.commands.debug.process import BaseProcess
+from platformio.proc import where_is_program
 
 
 class DebugServer(BaseProcess):
@@ -47,7 +48,7 @@ class DebugServer(BaseProcess):
             server_executable = server_executable + ".exe"
 
         if not isfile(server_executable):
-            server_executable = util.where_is_program(server_executable)
+            server_executable = where_is_program(server_executable)
         if not isfile(server_executable):
             raise exception.DebugInvalidOptions(
                 "\nCould not launch Debug Server '%s'. Please check that it "