40 def _detect_nanopb(env):  argument
42     if env.has_key('NANOPB'):
44         return env['NANOPB']
54 def _detect_protoc(env):  argument
56     if env.has_key('PROTOC'):
58         return env['PROTOC']
60     n = _detect_nanopb(env)
61     p1 = os.path.join(n, 'generator-bin', 'protoc' + env['PROGSUFFIX'])
64         return env['ESCAPE'](p1)
66     p = env.WhereIs('protoc')
69         return env['ESCAPE'](p)
74 def _detect_protocflags(env):  argument
76     if env.has_key('PROTOCFLAGS'):
77         return env['PROTOCFLAGS']
79     p = _detect_protoc(env)
80     n = _detect_nanopb(env)
81     p1 = os.path.join(n, 'generator-bin', 'protoc' + env['PROGSUFFIX'])
82     if p == env['ESCAPE'](p1):
86     e = env['ESCAPE']
87     if env['PLATFORM'] == 'win32':
92 def _nanopb_proto_actions(source, target, env, for_signature):  argument
93     esc = env['ESCAPE']
94     dirs = ' '.join(['-I' + esc(env.GetBuildPath(d)) for d in env['PROTOCPATH']])
97 def _nanopb_proto_emitter(target, source, env):  argument
112 def generate(env):  argument
115     env['NANOPB'] = _detect_nanopb(env)
116     env['PROTOC'] = _detect_protoc(env)
117     env['PROTOCFLAGS'] = _detect_protocflags(env)
119     env.SetDefault(PROTOCPATH = ['.', os.path.join(env['NANOPB'], 'generator', 'proto')])
121     env.SetDefault(NANOPB_PROTO_CMD = '$PROTOC $PROTOCFLAGS --nanopb_out=. $SOURCES')
122     env['BUILDERS']['NanopbProto'] = _nanopb_proto_builder
124 def exists(env):  argument
125     return _detect_protoc(env) and _detect_protoc_opts(env)