def plan_layers(self, layers, output_files):
config = ComposerConfig()
config = config.add_config(
layers["layers"][0] / ComposerConfig.DEFAULT_FILE, True)
layers["layers"][-1].url = self.name
for i, layer in enumerate(layers["layers"]):
log.info("Processing layer: %s", layer.url)
if i + 1 < len(layers["layers"]):
next_layer = layers["layers"][i + 1]
config = config.add_config(
next_layer / ComposerConfig.DEFAULT_FILE, True)
list(e for e in utils.walk(layer.directory,
self.build_tactics,
current=layer,
config=config,
output_files=output_files))
plan = [t for t in output_files.values() if t]
return plan
