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COMMON_INCLUDED = TRUE
# Useful functions
# Returns the first argument (typically a directory), if the file or directory
# named by concatenating the first and optionally second argument
# (directory and optional filename) exists
dir_if_exists = $(if $(wildcard $(1)$(2)),$(1))
# result = $(call READ_BOARD_TXT, 'boardname', 'parameter')
PARSE_BOARD = $(shell if [ -f $(BOARDS_TXT) ]; \
then \
$(GREP_CMD) -Ev '^\#' $(BOARDS_TXT) | \
$(GREP_CMD) -E "^[ \t]*$(1).$(2)=" | \
cut -d = -f 2- | \
cut -d : -f 2; \
fi)
# Run a shell script if it exists. Stops make on error.
runscript_if_exists = \
$(if $(wildcard $(1)), \
$(if $(findstring 0, \
$(lastword $(shell $(abspath $(wildcard $(1))); echo $$?))), \
$(info Info: $(1) success), \
$(error ERROR: $(1) failed)))
# For message printing: pad the right side of the first argument with spaces to
# the number of bytes indicated by the second argument.
space_pad_to = $(shell echo "$(1) " | head -c$(2))
# Call with some text, and a prefix tag if desired (like [AUTODETECTED]),
show_config_info = $(call arduino_output,- $(call space_pad_to,$(2),20) $(1))
# Call with the name of the variable, a prefix tag if desired (like [AUTODETECTED]),
# and an explanation if desired (like (found in $$PATH)
show_config_variable = $(call show_config_info,$(1) = $($(1)) $(3),$(2))
# Just a nice simple visual separator
show_separator = $(call arduino_output,-------------------------)
# Master Arduino Makefile include (after user Makefile)
ardmk_include = $(shell basename $(word 2,$(MAKEFILE_LIST)))
$(call show_separator)
$(call arduino_output,$(call ardmk_include) Configuration:)
########################################################################
#
# Detect OS
ifeq ($(OS),Windows_NT)
CURRENT_OS = WINDOWS
GREP_CMD = grep
else
UNAME_S := $(shell uname -s)
ifeq ($(UNAME_S),Linux)
CURRENT_OS = LINUX
GREP_CMD = grep
endif
ifeq ($(UNAME_S),Darwin)
CURRENT_OS = MAC
ifeq (, $(shell which gggrep))
$(info Using macOS BSD grep, please install GNU grep to avoid warnings)
GREP_CMD = grep
else
GREP_CMD = ggrep
endif
endif
endif
$(call show_config_variable,CURRENT_OS,[AUTODETECTED])
########################################################################
# Arduino Directory
ifndef ARDUINO_DIR
AUTO_ARDUINO_DIR := $(firstword \
$(call dir_if_exists,/usr/share/arduino) \
$(call dir_if_exists,/Applications/Arduino.app/Contents/Resources/Java) \
$(call dir_if_exists,/Applications/Arduino.app/Contents/Java) )
ifdef AUTO_ARDUINO_DIR
ARDUINO_DIR = $(AUTO_ARDUINO_DIR)
$(call show_config_variable,ARDUINO_DIR,[AUTODETECTED])
else
echo $(error "ARDUINO_DIR is not defined")
endif
else
$(call show_config_variable,ARDUINO_DIR,[USER])
endif
########################################################################
# System Python
ifndef PYTHON_CMD
# try for Python 3 first
PYTHON_CMD := $(shell which python3 2> /dev/null)
ifdef PYTHON_CMD
$(call show_config_variable,PYTHON_CMD,[AUTODETECTED])
else
# fall-back to any Python
PYTHON_CMD := $(shell which python 2> /dev/null)
ifdef PYTHON_CMD
$(call show_config_variable,PYTHON_CMD,[AUTODETECTED])
else
echo $(error "Unable to find system Python! Utility scipts won't work. Override this error by defining PYTHON_CMD")
endif
endif
else
$(call show_config_variable,PYTHON_CMD,[USER])
endif
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