# Copyright (c) 2012 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

#
# GNU Make based build file.  For details on GNU Make see:
#   http://www.gnu.org/software/make/manual/make.html
#

#
# Get pepper directory for toolchain and includes.
#
# If NACL_SDK_ROOT is not set, then assume it can be found a two directories up,
# from the default example directory location.
#
THIS_MAKEFILE:=$(abspath $(lastword $(MAKEFILE_LIST)))
THIS_DIR:=$(abspath $(dir $(THIS_MAKEFILE)))
NACL_SDK_ROOT?=$(abspath $(dir $(THIS_MAKEFILE))../..)
CHROME_PATH?=Undefined

#
# Defaults
#
NACL_WARNINGS:=-Wno-long-long -Wall -Wswitch-enum -Werror -pedantic

#
# Project Settings
#
__PROJECT_SETTINGS__

#
# Default target
#
__PROJECT_TARGETS__

#
# Alias for standard commands
#
CP:=python $(NACL_SDK_ROOT)/tools/oshelpers.py cp
MKDIR:=python $(NACL_SDK_ROOT)/tools/oshelpers.py mkdir
MV:=python $(NACL_SDK_ROOT)/tools/oshelpers.py mv
RM:=python $(NACL_SDK_ROOT)/tools/oshelpers.py rm


#
# Verify we selected a valid toolchain for this example
#
ifeq (,$(findstring $(TOOLCHAIN),$(VALID_TOOLCHAINS)))
$(warning Availbile choices are: $(VALID_TOOLCHAINS))
$(error Can not use TOOLCHAIN=$(TOOLCHAIN) on this example.)
endif


#
# Compute path to requested NaCl Toolchain
#
OSNAME:=$(shell python $(NACL_SDK_ROOT)/tools/getos.py)
TC_PATH:=$(abspath $(NACL_SDK_ROOT)/toolchain)


#
# Verify we have a valid NACL_SDK_ROOT by looking for the toolchain directory
#
ifeq (,$(wildcard $(TC_PATH)))
$(warning No valid NACL_SDK_ROOT at $(NACL_SDK_ROOT))
ifeq ($(origin NACL_SDK_ROOT), 'file')
$(error Override the default value via enviornment variable, or command-line.)
else
$(error Fix the NACL_SDK_ROOT specified in the environment or command-line.)
endif
endif


#
# Disable DOS PATH warning when using Cygwin based NaCl tools on Windows
#
CYGWIN ?= nodosfilewarning
export CYGWIN


#
# Defaults for TOOLS
#
__PROJECT_TOOLS__


#
# NMF Manifiest generation
#
# Use the python script create_nmf to scan the binaries for dependencies using
# objdump.  Pass in the (-L) paths to the default library toolchains so that we
# can find those libraries and have it automatically copy the files (-s) to
# the target directory for us.
NMF:=python $(NACL_SDK_ROOT)/tools/create_nmf.py


#
# Verify we can find the Chrome executable if we need to launch it.
#
.PHONY: CHECK_FOR_CHROME RUN LAUNCH
CHECK_FOR_CHROME:
ifeq (,$(wildcard $(CHROME_PATH)))
	$(warning No valid Chrome found at CHROME_PATH=$(CHROME_PATH))
	$(error Set CHROME_PATH via an environment variable, or command-line.)
else
	$(warning Using chrome at: $(CHROME_PATH))
endif

__PROJECT_RULES__

__PROJECT_PRERUN__

#
# Variables for running examples with Chrome.
#
RUN_PY:=python $(NACL_SDK_ROOT)/tools/run.py

# Add this to launch Chrome with additional environment variables defined.
# Each element should be specified as KEY=VALUE, with whitespace separating
# key-value pairs. e.g.
# CHROME_ENV=FOO=1 BAR=2 BAZ=3
CHROME_ENV?=

# Additional arguments to pass to Chrome.
CHROME_ARGS+=--enable-nacl --incognito


CONFIG?=Debug
PAGE?=index_$(TOOLCHAIN)_$(CONFIG).html

RUN: LAUNCH
LAUNCH: CHECK_FOR_CHROME all
ifeq (,$(wildcard $(PAGE)))
	$(warning No valid HTML page found at $(PAGE))
	$(error Make sure TOOLCHAIN and CONFIG are properly set)
endif
	$(RUN_PY) -C $(THIS_DIR) -P $(PAGE) $(addprefix -E ,$(CHROME_ENV)) -- \
	    $(CHROME_PATH) $(CHROME_ARGS) \
	    --register-pepper-plugins="$(PPAPI_DEBUG),$(PPAPI_RELEASE)"

__PROJECT_POSTLAUNCH__