distdir.mk revision 534fcd766ecec602d9437d155066fc5253f1185a 
1#
2# Copyright (C) 2007 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# When specifying "dist", the user has asked that we copy the important
18# files from this build into DIST_DIR.
19
20.PHONY: dist
21dist: ;
22
23dist_goal := $(strip $(filter dist,$(MAKECMDGOALS)))
24MAKECMDGOALS := $(strip $(filter-out dist,$(MAKECMDGOALS)))
25ifeq (,$(strip $(filter-out $(INTERNAL_MODIFIER_TARGETS),$(MAKECMDGOALS))))
26# The commandline was something like "make dist" or "make dist showcommands".
27# Add a dependency on a real target.
28dist: $(DEFAULT_GOAL)
29endif
30
31ifdef dist_goal
32
33# $(1): source file
34# $(2): destination file
35# $(3): goals that should copy the file
36#
37define copy-one-dist-file
38$(3): $(2)
39$(2): $(1)
40	@echo "Dist: $$@"
41	$$(copy-file-to-new-target-with-cp)
42endef
43
44# A global variable to remember all dist'ed src:dst pairs.
45# So if a src:dst is already dist'ed by another goal,
46# we should just establish the dependency and don't really call the
47# copy-one-dist-file to avoid multiple rules for the same target.
48_all_dist_src_dst_pairs :=
49# Other parts of the system should use this function to associate
50# certain files with certain goals.  When those goals are built
51# and "dist" is specified, the marked files will be copied to DIST_DIR.
52#
53# $(1): a list of goals  (e.g. droid, sdk, pdk, ndk)
54# $(2): the dist files to add to those goals.  If the file contains ':',
55#       the text following the colon is the name that the file is copied
56#       to under the dist directory.  Subdirs are ok, and will be created
57#       at copy time if necessary.
58define dist-for-goals
59$(foreach file,$(2), \
60  $(eval fw := $(subst :,$(space),$(file))) \
61  $(eval src := $(word 1,$(fw))) \
62  $(eval dst := $(word 2,$(fw))) \
63  $(eval dst := $(if $(dst),$(dst),$(notdir $(src)))) \
64  $(if $(filter $(_all_dist_src_dst_pairs),$(src):$(dst)),\
65    $(eval $(call add-dependency,$(1),$(DIST_DIR)/$(dst))),\
66    $(eval $(call copy-one-dist-file,\
67      $(src),$(DIST_DIR)/$(dst),$(1)))\
68      $(eval _all_dist_src_dst_pairs += $(src):$(dst))\
69  )\
70)
71endef
72
73else # !dist_goal
74
75# empty definition when not building dist
76define dist-for-goals
77endef
78
79endif # !dist_goal
80