SCons for Efene Project

console output

dave@Molly-Ubuntu:~/carwave$ scons -Q --tree=all
scons: `.' is up to date.
+-.
  +-SConstruct
  +-ebin
  | +-ebin/carwave_app.beam
  | | +-src/carwave_app.ifn
  | | +-src/carwave_server.ifn
  | | +-src/carwave_sup.ifn
  | +-ebin/carwave_server.beam
  | | +-src/carwave_app.ifn
  | | +-src/carwave_server.ifn
  | | +-src/carwave_sup.ifn
  | +-ebin/carwave_sup.beam
  |   +-src/carwave_app.ifn
  |   +-src/carwave_server.ifn
  |   +-src/carwave_sup.ifn
  +-src
    +-src/carwave_app
    +-src/carwave_app.ifn
    +-src/carwave_server.ifn
    +-src/carwave_sup.ifn

SConstruct

import os

def efene_build(target, source, env):
  if len(target) == 0:
    raise StandardError('No targets!')
  if len(target) != len(source):
    raise StandardError('Source list and target list different lengths!')
  for t in target:
    target_dir, target_base = os.path.split(str(t))
    target_name, target_ext = os.path.splitext(target_base)
    if target_dir != "ebin":
      raise StandardError("Invalid target directory for %s" % str(t))
    if target_ext != ".beam":
      raise StandardError("Invalid target extension for %s" % str(t))
    found_source = False
    for s in source:
      if os.path.splitext(os.path.basename(str(s)))[0] == target_name:
        found_source = True
        break
    if not found_source:
      raise StandardError("Couldn't find matching source for target %s" % str(t))
  return env.Execute("fnc %s -o ebin" % " ".join([str(s) for s in source]))

def efene_emitter(target, source, env):
  new_target = []
  for s in source:
    tgt_name = os.path.join("ebin", os.path.splitext(os.path.basename(str(s)))[0] + ".beam")
    new_target.append(tgt_name)
  return new_target, source

env = Environment(ENV = os.environ)
env['BUILDERS']['Efene'] = Builder(action = efene_build, emitter = efene_emitter, suffix = '.beam')

env.Efene(Glob('src/*'))