Decouple the addition of command line arguments (#5848)

* Decouple the addition of command line arguments

* Decouple the addition of command line arguments

* Modify change logs

* Modify change logs

* Decouple the addition of command line arguments

* delete wrong edits

* Modify file header

* remove duplicate imports

2 files changed, 133 insertions, 115 deletions

diff --git a/tools/building.py b/tools/building.py
index 5cf0935474..7c9e61eb34 100644
--- a/tools/building.py
+++ b/tools/building.py
@@ -29,10 +29,13 @@ import sys
 import string
 import utils
 import operator
+import rtconfig
 
 from SCons.Script import *
 from utils import _make_path_relative
 from mkdist import do_copy_file
+from options import AddOptions
+
 
 BuildOptions = {}
 Projects = []
@@ -119,7 +122,6 @@ class Win32Spawn:
 
 # generate cconfig.h file
 def GenCconfigFile(env, BuildOptions):
-    import rtconfig
 
     if rtconfig.PLATFORM == 'gcc':
         contents = ''
@@ -144,90 +146,13 @@ def GenCconfigFile(env, BuildOptions):
                 env.AppendUnique(CPPDEFINES = ['HAVE_CCONFIG_H'])
 
 def PrepareBuilding(env, root_directory, has_libcpu=False, remove_components = []):
-    import rtconfig
 
     global BuildOptions
     global Projects
     global Env
     global Rtt_Root
 
-    # ===== Add option to SCons =====
-    AddOption('--dist',
-                      dest = 'make-dist',
-                      action = 'store_true',
-                      default = False,
-                      help = 'make distribution')
-    AddOption('--dist-strip',
-                      dest = 'make-dist-strip',
-                      action = 'store_true',
-                      default = False,
-                      help = 'make distribution and strip useless files')
-    AddOption('--dist-ide',
-                      dest = 'make-dist-ide',
-                      action = 'store_true',
-                      default = False,
-                      help = 'make distribution for RT-Thread Studio IDE')
-    AddOption('--project-path',
-                      dest = 'project-path',
-                      type = 'string',
-                      default = None,
-                      help = 'set dist-ide project output path')
-    AddOption('--project-name',
-                      dest = 'project-name',
-                      type = 'string',
-                      default = None,
-                      help = 'set project name')
-    AddOption('--reset-project-config',
-                      dest = 'reset-project-config',
-                      action = 'store_true',
-                      default = False,
-                      help = 'reset the project configurations to default')
-    AddOption('--cscope',
-                      dest = 'cscope',
-                      action = 'store_true',
-                      default = False,
-                      help = 'Build Cscope cross reference database. Requires cscope installed.')
-    AddOption('--clang-analyzer',
-                      dest = 'clang-analyzer',
-                      action = 'store_true',
-                      default = False,
-                      help = 'Perform static analyze with Clang-analyzer. ' + \
-                           'Requires Clang installed.\n' + \
-                           'It is recommended to use with scan-build like this:\n' + \
-                           '`scan-build scons --clang-analyzer`\n' + \
-                           'If things goes well, scan-build will instruct you to invoke scan-view.')
-    AddOption('--buildlib',
-                      dest = 'buildlib',
-                      type = 'string',
-                      help = 'building library of a component')
-    AddOption('--cleanlib',
-                      dest = 'cleanlib',
-                      action = 'store_true',
-                      default = False,
-                      help = 'clean up the library by --buildlib')
-    AddOption('--target',
-                      dest = 'target',
-                      type = 'string',
-                      help = 'set target project: mdk/mdk4/mdk5/iar/vs/vsc/ua/cdk/ses/makefile/eclipse/codelite/cmake')
-    AddOption('--stackanalysis',
-                dest = 'stackanalysis',
-                action = 'store_true',
-                default = False,
-                help = 'thread stack static analysis')
-    AddOption('--genconfig',
-                dest = 'genconfig',
-                action = 'store_true',
-                default = False,
-                help = 'Generate .config from rtconfig.h')
-    AddOption('--useconfig',
-                dest = 'useconfig',
-                type = 'string',
-                help = 'make rtconfig.h from config file.')
-    AddOption('--verbose',
-                dest = 'verbose',
-                action = 'store_true',
-                default = False,
-                help = 'print verbose information during build')
+    AddOptions()
 
     Env = env
     Rtt_Root = os.path.abspath(root_directory)
@@ -373,27 +298,10 @@ def PrepareBuilding(env, root_directory, has_libcpu=False, remove_components = [
         ThreadStackStaticAnalysis(Env)
         exit(0)
     
-    if env['PLATFORM'] != 'win32':
-        AddOption('--menuconfig',
-                    dest = 'menuconfig',
-                    action = 'store_true',
-                    default = False,
-                    help = 'make menuconfig for RT-Thread BSP')
-        if GetOption('menuconfig'):
-            from menuconfig import menuconfig
-            menuconfig(Rtt_Root)
-            exit(0)
-
-    AddOption('--pyconfig',
-                dest = 'pyconfig',
-                action = 'store_true',
-                default = False,
-                help = 'Python GUI menuconfig for RT-Thread BSP')
-    AddOption('--pyconfig-silent',
-                dest = 'pyconfig_silent',
-                action = 'store_true',
-                default = False,
-                help = 'Don`t show pyconfig window')
+    if GetOption('menuconfig'):
+        from menuconfig import menuconfig
+        menuconfig(Rtt_Root)
+        exit(0)
 
     if GetOption('pyconfig_silent'):    
         from menuconfig import guiconfig_silent
@@ -457,7 +365,6 @@ def PrepareBuilding(env, root_directory, has_libcpu=False, remove_components = [
     return objs
 
 def PrepareModuleBuilding(env, root_directory, bsp_directory):
-    import rtconfig
 
     global BuildOptions
     global Env
@@ -480,17 +387,6 @@ def PrepareModuleBuilding(env, root_directory, bsp_directory):
     PreProcessor.process_contents(contents)
     BuildOptions = PreProcessor.cpp_namespace
 
-    # add build/clean library option for library checking
-    AddOption('--buildlib',
-              dest='buildlib',
-              type='string',
-              help='building library of a component')
-    AddOption('--cleanlib',
-              dest='cleanlib',
-              action='store_true',
-              default=False,
-              help='clean up the library by --buildlib')
-
     # add program path
     env.PrependENVPath('PATH', rtconfig.EXEC_PATH)
 
@@ -709,7 +605,7 @@ def DefineGroup(name, src, depend, **parameters):
             paths.append(os.path.abspath(item))
         group['LOCAL_CPPPATH'] = paths
 
-    import rtconfig
+    
     if rtconfig.PLATFORM == 'gcc':
         if 'CFLAGS' in group:
             group['CFLAGS'] = utils.GCCC99Patch(group['CFLAGS'])
@@ -786,7 +682,7 @@ def PreBuilding():
         a()
 
 def GroupLibName(name, env):
-    import rtconfig
+    
     if rtconfig.PLATFORM == 'armcc':
         return name + '_rvds'
     elif rtconfig.PLATFORM == 'gcc':
@@ -953,7 +849,6 @@ def GenTargetProject(program = None):
 
 
 def EndBuilding(target, program = None):
-    import rtconfig
 
     need_exit = False
 
diff --git a/tools/options.py b/tools/options.py
new file mode 100644
index 0000000000..3db1e8b653
--- /dev/null
+++ b/tools/options.py
@@ -0,0 +1,123 @@
+#
+# File      : options.py
+# This file is part of RT-Thread RTOS
+# COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Change Logs:
+# Date           Author       Notes
+# 2022-04-20     WuGensheng  Add Options to SCons
+#
+
+from SCons.Script import AddOption
+import platform
+
+def AddOptions():
+    ''' ===== Add options to SCons ===== '''
+    
+    AddOption('--dist',
+                      dest = 'make-dist',
+                      action = 'store_true',
+                      default = False,
+                      help = 'make distribution')
+    AddOption('--dist-strip',
+                      dest = 'make-dist-strip',
+                      action = 'store_true',
+                      default = False,
+                      help = 'make distribution and strip useless files')
+    AddOption('--dist-ide',
+                      dest = 'make-dist-ide',
+                      action = 'store_true',
+                      default = False,
+                      help = 'make distribution for RT-Thread Studio IDE')
+    AddOption('--project-path',
+                      dest = 'project-path',
+                      type = 'string',
+                      default = None,
+                      help = 'set dist-ide project output path')
+    AddOption('--project-name',
+                      dest = 'project-name',
+                      type = 'string',
+                      default = None,
+                      help = 'set project name')
+    AddOption('--reset-project-config',
+                      dest = 'reset-project-config',
+                      action = 'store_true',
+                      default = False,
+                      help = 'reset the project configurations to default')
+    AddOption('--cscope',
+                      dest = 'cscope',
+                      action = 'store_true',
+                      default = False,
+                      help = 'Build Cscope cross reference database. Requires cscope installed.')
+    AddOption('--clang-analyzer',
+                      dest = 'clang-analyzer',
+                      action = 'store_true',
+                      default = False,
+                      help = 'Perform static analyze with Clang-analyzer. ' + \
+                           'Requires Clang installed.\n' + \
+                           'It is recommended to use with scan-build like this:\n' + \
+                           '`scan-build scons --clang-analyzer`\n' + \
+                           'If things goes well, scan-build will instruct you to invoke scan-view.')
+    AddOption('--buildlib',
+                      dest = 'buildlib',
+                      type = 'string',
+                      help = 'building library of a component')
+    AddOption('--cleanlib',
+                      dest = 'cleanlib',
+                      action = 'store_true',
+                      default = False,
+                      help = 'clean up the library by --buildlib')
+    AddOption('--target',
+                      dest = 'target',
+                      type = 'string',
+                      help = 'set target project: mdk/mdk4/mdk5/iar/vs/vsc/ua/cdk/ses/makefile/eclipse/codelite/cmake')
+    AddOption('--stackanalysis',
+                dest = 'stackanalysis',
+                action = 'store_true',
+                default = False,
+                help = 'thread stack static analysis')
+    AddOption('--genconfig',
+                dest = 'genconfig',
+                action = 'store_true',
+                default = False,
+                help = 'Generate .config from rtconfig.h')
+    AddOption('--useconfig',
+                dest = 'useconfig',
+                type = 'string',
+                help = 'make rtconfig.h from config file.')
+    AddOption('--verbose',
+                dest = 'verbose',
+                action = 'store_true',
+                default = False,
+                help = 'print verbose information during build')
+    AddOption('--pyconfig',
+                dest = 'pyconfig',
+                action = 'store_true',
+                default = False,
+                help = 'Python GUI menuconfig for RT-Thread BSP')
+    AddOption('--pyconfig-silent',
+                dest = 'pyconfig_silent',
+                action = 'store_true',
+                default = False,
+                help = 'Don`t show pyconfig window')
+    if platform.system() != 'Windows':
+        AddOption('--menuconfig',
+                    dest = 'menuconfig',
+                    action = 'store_true',
+                    default = False,
+                    help = 'make menuconfig for RT-Thread BSP')
+