diff --git a/platformio/builder/tools/platformio.py b/platformio/builder/tools/platformio.py
index 818c07ff..82b81a0f 100644
--- a/platformio/builder/tools/platformio.py
+++ b/platformio/builder/tools/platformio.py
@@ -44,7 +44,88 @@ def scons_patched_match_splitext(path, suffixes=None):
     return tokens
 
 
-def _build_project_deps(env):
+def GetBuildType(env):
+    return (
+        "debug"
+        if (
+            set(["debug", "sizedata"]) & set(COMMAND_LINE_TARGETS)
+            or env.GetProjectOption("build_type") == "debug"
+        )
+        else "release"
+    )
+
+
+def BuildProgram(env):
+    env.ProcessProgramDeps()
+    env.ProcessProjectDeps()
+
+    program = env.Program(
+        os.path.join("$BUILD_DIR", env.subst("$PROGNAME")), env["PIOBUILDFILES"]
+    )
+    env.Replace(PIOMAINPROG=program)
+
+    AlwaysBuild(
+        env.Alias(
+            "checkprogsize",
+            program,
+            env.VerboseAction(env.CheckUploadSize, "Checking size $PIOMAINPROG"),
+        )
+    )
+
+    print("Building in %s mode" % env.GetBuildType())
+
+    return program
+
+
+def ProcessProgramDeps(env):
+    def _append_pio_macros():
+        env.AppendUnique(
+            CPPDEFINES=[
+                (
+                    "PLATFORMIO",
+                    int("{0:02d}{1:02d}{2:02d}".format(*pioversion_to_intstr())),
+                )
+            ]
+        )
+
+    _append_pio_macros()
+
+    env.PrintConfiguration()
+
+    # fix ASM handling under non case-sensitive OS
+    if not Util.case_sensitive_suffixes(".s", ".S"):
+        env.Replace(AS="$CC", ASCOM="$ASPPCOM")
+
+    # process extra flags from board
+    if "BOARD" in env and "build.extra_flags" in env.BoardConfig():
+        env.ProcessFlags(env.BoardConfig().get("build.extra_flags"))
+
+    # apply user flags
+    env.ProcessFlags(env.get("BUILD_FLAGS"))
+
+    # process framework scripts
+    env.BuildFrameworks(env.get("PIOFRAMEWORK"))
+
+    if env.GetBuildType() == "debug":
+        env.ConfigureDebugFlags()
+
+    # remove specified flags
+    env.ProcessUnFlags(env.get("BUILD_UNFLAGS"))
+
+    if "__test" in COMMAND_LINE_TARGETS:
+        env.ConfigureTestTarget()
+
+    # append into the beginning a main LD script
+    if env.get("LDSCRIPT_PATH") and not any("-Wl,-T" in f for f in env["LINKFLAGS"]):
+        env.Prepend(LINKFLAGS=["-T", env.subst("$LDSCRIPT_PATH")])
+
+    # enable "cyclic reference" for linker
+    if env.get("LIBS") and env.GetCompilerType() == "gcc":
+        env.Prepend(_LIBFLAGS="-Wl,--start-group ")
+        env.Append(_LIBFLAGS=" -Wl,--end-group")
+
+
+def ProcessProjectDeps(env):
     project_lib_builder = env.ConfigureProjectLibBuilder()
 
     # prepend project libs to the beginning of list
@@ -85,78 +166,6 @@ def _build_project_deps(env):
     Export("projenv")
 
 
-def BuildProgram(env):
-    def _append_pio_macros():
-        env.AppendUnique(
-            CPPDEFINES=[
-                (
-                    "PLATFORMIO",
-                    int("{0:02d}{1:02d}{2:02d}".format(*pioversion_to_intstr())),
-                )
-            ]
-        )
-
-    _append_pio_macros()
-
-    env.PrintConfiguration()
-
-    # fix ASM handling under non case-sensitive OS
-    if not Util.case_sensitive_suffixes(".s", ".S"):
-        env.Replace(AS="$CC", ASCOM="$ASPPCOM")
-
-    # process extra flags from board
-    if "BOARD" in env and "build.extra_flags" in env.BoardConfig():
-        env.ProcessFlags(env.BoardConfig().get("build.extra_flags"))
-
-    # apply user flags
-    env.ProcessFlags(env.get("BUILD_FLAGS"))
-
-    # process framework scripts
-    env.BuildFrameworks(env.get("PIOFRAMEWORK"))
-
-    is_build_type_debug = (
-        set(["debug", "sizedata"]) & set(COMMAND_LINE_TARGETS)
-        or env.GetProjectOption("build_type") == "debug"
-    )
-    if is_build_type_debug:
-        env.ConfigureDebugFlags()
-
-    # remove specified flags
-    env.ProcessUnFlags(env.get("BUILD_UNFLAGS"))
-
-    if "__test" in COMMAND_LINE_TARGETS:
-        env.ConfigureTestTarget()
-
-    # append into the beginning a main LD script
-    if env.get("LDSCRIPT_PATH") and not any("-Wl,-T" in f for f in env["LINKFLAGS"]):
-        env.Prepend(LINKFLAGS=["-T", env.subst("$LDSCRIPT_PATH")])
-
-    # enable "cyclic reference" for linker
-    if env.get("LIBS") and env.GetCompilerType() == "gcc":
-        env.Prepend(_LIBFLAGS="-Wl,--start-group ")
-        env.Append(_LIBFLAGS=" -Wl,--end-group")
-
-    # build project with dependencies
-    _build_project_deps(env)
-
-    program = env.Program(
-        os.path.join("$BUILD_DIR", env.subst("$PROGNAME")), env["PIOBUILDFILES"]
-    )
-    env.Replace(PIOMAINPROG=program)
-
-    AlwaysBuild(
-        env.Alias(
-            "checkprogsize",
-            program,
-            env.VerboseAction(env.CheckUploadSize, "Checking size $PIOMAINPROG"),
-        )
-    )
-
-    print("Building in %s mode" % ("debug" if is_build_type_debug else "release"))
-
-    return program
-
-
 def ParseFlagsExtended(env, flags):  # pylint: disable=too-many-branches
     if not isinstance(flags, list):
         flags = [flags]
@@ -343,7 +352,10 @@ def exists(_):
 
 
 def generate(env):
+    env.AddMethod(GetBuildType)
     env.AddMethod(BuildProgram)
+    env.AddMethod(ProcessProgramDeps)
+    env.AddMethod(ProcessProjectDeps)
     env.AddMethod(ParseFlagsExtended)
     env.AddMethod(ProcessFlags)
     env.AddMethod(ProcessUnFlags)