import os
from SCons.Script import *

# 导入环境
Import('env')

# 项目根目录
CWD = os.getcwd()

# 收集源码(.c 和 .S 文件)
sources = Glob(os.path.join(CWD, 'src/*.c')) + Glob(os.path.join(CWD, 'src/*.S'))

# 编译选项
cpppath = [
    CWD,
    os.path.join(CWD, 'inc'),  # 仅使用项目内的头文件目录
]

# 确保 build 目录存在
BUILD_DIR = 'build'
if not os.path.exists(BUILD_DIR):
    os.makedirs(BUILD_DIR)

# 逐个编译源码生成目标文件(输出到 build 目录)
objs = []
for src in sources:
    src_path = str(src)  # 转换为字符串路径
    obj_name = os.path.basename(src_path).replace('.c', '.o').replace('.S', '.o')
    obj_path = os.path.join(CWD, BUILD_DIR, obj_name)
    
    obj = env.Object(
        target=obj_path,
        source=src_path,
        CPPPATH=cpppath,
    )
    objs.append(obj)

# 返回目标文件列表，给 SConstruct 链接用
Return('objs')