1#
2# Copyright (C) 2009 The Android Open Source Project
3#
4# Licensed under the Apache License, Version 2.0 (the "License");
5# you may not use this file except in compliance with the License.
6# You may obtain a copy of the License at
7#
8#      http://www.apache.org/licenses/LICENSE-2.0
9#
10# Unless required by applicable law or agreed to in writing, software
11# distributed under the License is distributed on an "AS IS" BASIS,
12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13# See the License for the specific language governing permissions and
14# limitations under the License.
15#
16
17# the sort also acts as a strip to remove the single space entries that creep in because of the evals
18define gather-all-makefiles-for-current-product
19$(eval _all_products_visited := )\
20$(sort $(call gather-all-makefiles-for-current-product-inner,$(INTERNAL_PRODUCT)))
21endef
22
23define gather-all-makefiles-for-current-product-inner
24	$(foreach p,$(1),\
25		$(if $(filter $(p),$(_all_products_visited)),, \
26			$(p) \
27			$(eval _all_products_visited += $(p)) \
28			$(call gather-all-makefiles-for-current-product-inner, $(PRODUCTS.$(strip $(p)).INHERITS_FROM))
29		) \
30	)
31endef
32
33node_color_target := orange
34node_color_common := beige
35node_color_vendor := lavenderblush
36node_color_default := white
37define node-color
38$(if $(filter $(1),$(PRIVATE_TOP_LEVEL_MAKEFILE)),\
39  $(node_color_target),\
40  $(if $(filter build/make/target/product/%,$(1)),\
41    $(node_color_common),\
42    $(if $(filter vendor/%,$(1)),$(node_color_vendor),$(node_color_default))\
43  )\
44)
45endef
46
47open_parethesis := (
48close_parenthesis := )
49
50# Emit properties of a product node to a file.
51# $(1) the product
52# $(2) the output file
53define emit-product-node-props
54$(hide) echo \"$(1)\" [ \
55label=\"$(dir $(1))\\n$(notdir $(1))$(if $(filter $(1),$(PRIVATE_TOP_LEVEL_MAKEFILE)),$(subst $(open_parethesis),,$(subst $(close_parenthesis),,\\n\\n$(PRODUCT_MODEL)\\n$(PRODUCT_DEVICE))))\" \
56style=\"filled\" fillcolor=\"$(strip $(call node-color,$(1)))\" \
57colorscheme=\"svg\" fontcolor=\"darkblue\" \
58] >> $(2)
59
60endef
61
62products_graph := $(OUT_DIR)/products.dot
63
64$(products_graph): PRIVATE_ALL_MAKEFILES_FOR_THIS_PRODUCT := $(call gather-all-makefiles-for-current-product)
65$(products_graph): PRIVATE_TOP_LEVEL_MAKEFILE := $(INTERNAL_PRODUCT)
66$(products_graph):
67	@echo Product graph DOT: $@ for $(PRIVATE_TOP_LEVEL_MAKEFILE)
68	$(hide) echo 'digraph {' > $@
69	$(hide) echo 'graph [ ratio=.5 ];' >> $@
70	$(hide) $(foreach p,$(PRIVATE_ALL_MAKEFILES_FOR_THIS_PRODUCT), \
71	  $(foreach d,$(PRODUCTS.$(strip $(p)).INHERITS_FROM), echo \"$(d)\" -\> \"$(p)\" >> $@;))
72	$(foreach p,$(PRIVATE_ALL_MAKEFILES_FOR_THIS_PRODUCT),$(call emit-product-node-props,$(p),$@))
73	$(hide) echo '}' >> $@
74
75.PHONY: product-graph
76product-graph: $(products_graph)
77	@echo Product graph .dot file: $(products_graph)
78	@echo Command to convert to pdf: dot -Tpdf -Nshape=box -o $(OUT_DIR)/products.pdf $(products_graph)
79	@echo Command to convert to svg: dot -Tsvg -Nshape=box -o $(OUT_DIR)/products.svg $(products_graph)
80