lunaix-os/scripts/build-tools/shared/build_gen.py

   1 from os.path      import isdir, exists
   2 from lbuild.build import BuildEnvironment
   3 from lbuild.scope import ScopeAccessor
   4
   5 def gen_source_file(subscope : ScopeAccessor):
   6     items = " ".join(subscope.values())
   7     return [f"BUILD_SRCS := {items}"]
   8
   9 def gen_header_file(subscope : ScopeAccessor):
  10     inc, hdr = [], []
  11     for x in subscope.values():
  12         if not exists(x):
  13             print(f"warning: '{x}' does not exists, skipped")
  14             continue
  15
  16         if isdir(x):
  17             inc.append(x)
  18         else:
  19             hdr.append(x)
  20
  21     return [
  22         f"BUILD_INC := {' '.join(inc)}",
  23         f"BUILD_HDR := {' '.join(hdr)}",
  24     ]
  25
  26 def gen_ccflags(subscope : ScopeAccessor):
  27     items = " ".join(subscope.values())
  28     return [f"BUILD_CFLAGS := {items}"]
  29
  30 def gen_ldflags(subscope : ScopeAccessor):
  31     items = " ".join(subscope.values())
  32     return [f"BUILD_LDFLAGS := {items}"]
  33
  34
  35 class BuildScriptGenerator:
  36     def __init__(self, env: BuildEnvironment):
  37         self.__gen_policy = {
  38             "src": {
  39                 "c": gen_source_file,
  40                 "h": gen_header_file
  41             },
  42             "flag": {
  43                 "cc": gen_ccflags,
  44                 "ld": gen_ldflags
  45             }
  46         }
  47
  48         self.__env = env
  49
  50     def __gen_lines(self, scope, subscope):
  51
  52         policy = self.__gen_policy.get(scope.name)
  53         if policy is None:
  54             print( "warning: no associated policy with"
  55                   f"'{scope.name}'"
  56                    ", skipped")
  57             return []
  58
  59         policy = policy.get(subscope.name)
  60         if policy is None:
  61             print( "warning: no associated policy with "
  62                   f"'{scope.name}.{subscope.name}' "
  63                    ", skipped")
  64             return []
  65
  66         return policy(subscope)
  67
  68     def generate(self, file):
  69         lines = []
  70
  71         for scope in self.__env.scopes.values():
  72             for subscope in scope.accessors():
  73                 lines += self.__gen_lines(scope, subscope)
  74
  75         with open(file, 'w') as f:
  76             f.write('\n'.join(lines))
  77