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qmk_firmware/Makefile
Fred Sundvik 1c69acb7d5 Add longest match to the rule-checking 
This fixes cases where you have several keyboards with a common
prefix, like algernon, and algernon-master
2016-08-21 13:10:34 +03:00

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ifndef VERBOSE
.SILENT:
endif
# Allow the silent with lower caps to work the same way as upper caps
ifdef silent
SILENT = $(silent)
endif
ifdef SILENT
SUB_IS_SILENT := $(SILENT)
endif
# We need to make sure that silent is always turned off at the top level
# Otherwise the [OK], [ERROR] and [WARN] messags won't be displayed correctly
override SILENT := false
ON_ERROR := error_occured=1
STARTING_MAKEFILE := $(firstword $(MAKEFILE_LIST))
ROOT_MAKEFILE := $(lastword $(MAKEFILE_LIST))
ROOT_DIR := $(dir $(ROOT_MAKEFILE))
ifeq ($(ROOT_DIR),)
ROOT_DIR := .
endif
ABS_STARTING_MAKEFILE := $(abspath $(STARTING_MAKEFILE))
ABS_ROOT_MAKEFILE := $(abspath $(ROOT_MAKEFILE))
ABS_STARTING_DIR := $(dir $(ABS_STARTING_MAKEFILE))
ABS_ROOT_DIR := $(dir $(ABS_ROOT_MAKEFILE))
STARTING_DIR := $(subst $(ABS_ROOT_DIR),,$(ABS_STARTING_DIR))
MAKEFILE_INCLUDED=yes
# Helper function to process the newt element of a space separated path
# It works a bit like the traditional functional head tail
# so the CURRENT_PATH_ELEMENT will beome the new head
# and the PATH_ELEMENTS are the rest that are still unprocessed
define NEXT_PATH_ELEMENT
$$(eval CURRENT_PATH_ELEMENT := $$(firstword $$(PATH_ELEMENTS)))
$$(eval PATH_ELEMENTS := $$(wordlist 2,9999,$$(PATH_ELEMENTS)))
endef
# We change the / to spaces so that we more easily can work with the elements
# separately
PATH_ELEMENTS := $(subst /, ,$(STARTING_DIR))
# Initialize the path elements list for further processing
$(eval $(call NEXT_PATH_ELEMENT))
# This function sets the KEYBOARD; KEYMAP and SUBPROJECT to the correct
# variables depending on which directory you stand in.
# It's really a very simple if else chain, if you squint enough,
# but the makefile syntax makes it very verbose.
# If we are in a subfolder of keyboards
ifeq ($(CURRENT_PATH_ELEMENT),keyboards)
$(eval $(call NEXT_PATH_ELEMENT))
KEYBOARD := $(CURRENT_PATH_ELEMENT)
$(eval $(call NEXT_PATH_ELEMENT))
# If we are in a subfolder of keymaps, or in other words in a keymap
# folder
ifeq ($(CURRENT_PATH_ELEMENT),keymaps)
$(eval $(call NEXT_PATH_ELEMENT))
KEYMAP := $(CURRENT_PATH_ELEMENT)
# else if we are not in the keyboard folder itself
else ifneq ($(CURRENT_PATH_ELEMENT),)
# the we can assume it's a subproject, as no other folders
# should have make files in them
SUBPROJECT := $(CURRENT_PATH_ELEMENT)
$(eval $(call NEXT_PATH_ELEMENT))
# if we are inside a keymap folder of a subproject
ifeq ($(CURRENT_PATH_ELEMENT),keymaps)
$(eval $(call NEXT_PATH_ELEMENT))
KEYMAP := $(CURRENT_PATH_ELEMENT)
endif
endif
endif
# Only consider folders with makefiles, to prevent errors in case there are extra folders
KEYBOARDS := $(notdir $(patsubst %/Makefile,%,$(wildcard $(ROOT_DIR)/keyboards/*/Makefile)))
#Compability with the old make variables, anything you specify directly on the command line
# always overrides the detected folders
ifdef keyboard
KEYBOARD := $(keyboard)
endif
ifdef sub
SUBPROJECT := $(sub)
endif
ifdef subproject
SUBPROJECT := $(subproject)
endif
ifdef keymap
KEYMAP := $(keymap)
endif
# Uncomment these for debugging
#$(info Keyboard: $(KEYBOARD))
#$(info Keymap: $(KEYMAP))
#$(info Subproject: $(SUBPROJECT))
#$(info Keyboards: $(KEYBOARDS))
# Set the default goal depening on where we are running make from
# this handles the case where you run make without any arguments
.DEFAULT_GOAL := all
ifneq ($(KEYMAP),)
ifeq ($(SUBPROJECT),)
# Inside a keymap folder, just build the keymap, with the
# default subproject
.DEFAULT_GOAL := $(KEYBOARD)-$(KEYMAP)
else
# Inside a subproject keyamp folder, build the keymap
# for that subproject
.DEFAULT_GOAL := $(KEYBOARD)-$(SUBPROJECT)-$(KEYMAP)
endif
else ifneq ($(SUBPROJECT),)
# Inside a subproject folder, build all keymaps for that subproject
.DEFAULT_GOAL := $(KEYBOARD)-$(SUBPROJECT)-allkm
else ifneq ($(KEYBOARD),)
# Inside a keyboard folder, build all keymaps for all subprojects
# Note that this is different from the old behaviour, which would
# build only the default keymap of the default keyboard
.DEFAULT_GOAL := $(KEYBOARD)-allsp-allkm
endif
# Compare the start of the RULE variable with the first argument($1)
# If the rules equals $1 or starts with $1-, RULE_FOUND is set to true
# and $1 is removed from the RULE variable
# Otherwise the RULE_FOUND variable is set to false, and RULE left as it was
# The function is a bit tricky, since there's no built in $(startswith) function
define COMPARE_AND_REMOVE_FROM_RULE_HELPER
ifeq ($1,$$(RULE))
RULE:=
RULE_FOUND := true
else
STARTDASH_REMOVED=$$(subst START$1-,,START$$(RULE))
ifneq ($$(STARTDASH_REMOVED),START$$(RULE))
RULE_FOUND := true
RULE := $$(STARTDASH_REMOVED)
else
RULE_FOUND := false
endif
endif
endef
# This makes it easier to call COMPARE_AND_REMOVE_FROM_RULE, since it makes it behave like
# a function that returns the value
COMPARE_AND_REMOVE_FROM_RULE = $(eval $(call COMPARE_AND_REMOVE_FROM_RULE_HELPER,$1))$(RULE_FOUND)
# Recursively try to find a match for the start of the rule to be checked
# $1 The list to be checked
# If a match is found, then RULE_FOUND is set to true
# and MATCHED_ITEM to the item that was matched
define TRY_TO_MATCH_RULE_FROM_LIST_HELPER3
ifneq ($1,)
ifeq ($$(call COMPARE_AND_REMOVE_FROM_RULE,$$(firstword $1)),true)
MATCHED_ITEM := $$(firstword $1)
else
$$(eval $$(call TRY_TO_MATCH_RULE_FROM_LIST_HELPER3,$$(wordlist 2,9999,$1)))
endif
endif
endef
# A recursive helper function for finding the longest match
# $1 The list to be checed
# It works by always removing the currently matched item from the list
# and call itself recursively, until a match is found
define TRY_TO_MATCH_RULE_FROM_LIST_HELPER2
# Stop the recursion when the list is empty
ifneq ($1,)
RULE_BEFORE := $$(RULE)
$$(eval $$(call TRY_TO_MATCH_RULE_FROM_LIST_HELPER3,$1))
# If a match is found in the current list, otherwise just return what we had before
ifeq ($$(RULE_FOUND),true)
# Save the best match so far and call itself recursivel
BEST_MATCH := $$(MATCHED_ITEM)
BEST_MATCH_RULE := $$(RULE)
RULE_FOUND := false
RULE := $$(RULE_BEFORE)
$$(eval $$(call TRY_TO_MATCH_RULE_FROM_LIST_HELPER2,$$(filter-out $$(MATCHED_ITEM),$1)))
endif
endif
endef
# Recursively try to find the longest match for the start of the rule to be checked
# $1 The list to be checked
# If a match is found, then RULE_FOUND is set to true
# and MATCHED_ITEM to the item that was matched
define TRY_TO_MATCH_RULE_FROM_LIST_HELPER
BEST_MATCH :=
$$(eval $$(call TRY_TO_MATCH_RULE_FROM_LIST_HELPER2,$1))
ifneq ($$(BEST_MATCH),)
RULE_FOUND := true
RULE := $$(BEST_MATCH_RULE)
MATCHED_ITEM := $$(BEST_MATCH)
else
RULE_FOUND := false
MATCHED_ITEM :=
endif
endef
# Make it easier to call TRY_TO_MATCH_RULE_FROM_LIST
TRY_TO_MATCH_RULE_FROM_LIST = $(eval $(call TRY_TO_MATCH_RULE_FROM_LIST_HELPER,$1))$(RULE_FOUND)
define ALL_IN_LIST_LOOP
OLD_RULE$1 := $$(RULE)
$$(eval $$(call $1,$$(ITEM$1)))
RULE := $$(OLD_RULE$1)
endef
define PARSE_ALL_IN_LIST
$$(foreach ITEM$1,$2,$$(eval $$(call ALL_IN_LIST_LOOP,$1)))
endef
# The entry point for rule parsing
# parses a rule in the format <keyboard>-<subproject>-<keymap>-<target>
# but this particular function only deals with the first <keyboard> part
define PARSE_RULE
RULE := $1
COMMANDS :=
# If the rule starts with allkb, then continue the parsing from
# PARSE_ALL_KEYBOARDS
ifeq ($$(call COMPARE_AND_REMOVE_FROM_RULE,allkb),true)
$$(eval $$(call PARSE_ALL_KEYBOARDS))
# If the rule starts with the name of a known keyboard, then continue
# the parsing from PARSE_KEYBOARD
else ifeq ($$(call TRY_TO_MATCH_RULE_FROM_LIST,$$(KEYBOARDS)),true)
$$(eval $$(call PARSE_KEYBOARD,$$(MATCHED_ITEM)))
# Otherwise use the KEYBOARD variable, which is determined either by
# the current directory you run make from, or passed in as an argument
else ifneq ($$(KEYBOARD),)
$$(eval $$(call PARSE_KEYBOARD,$$(KEYBOARD)))
else
$$(info make: *** No rule to make target '$1'. Stop.)
# Notice the tab instead of spaces below!
exit 1
endif
endef
# $1 = Keyboard
# Parses a rule in the format <subproject>-<keymap>-<target>
# the keyboard is already known when entering this function
define PARSE_KEYBOARD
CURRENT_KB := $1
# A subproject is any keyboard subfolder with a makefile
SUBPROJECTS := $$(notdir $$(patsubst %/Makefile,%,$$(wildcard $(ROOT_DIR)/keyboards/$$(CURRENT_KB)/*/Makefile)))
# if the rule starts with allsp, then continue with looping over all subprojects
ifeq ($$(call COMPARE_AND_REMOVE_FROM_RULE,allsp),true)
$$(eval $$(call PARSE_ALL_SUBPROJECTS))
# A special case for matching the defaultsp (default subproject)
else ifeq ($$(call COMPARE_AND_REMOVE_FROM_RULE,defaultsp),true)
$$(eval $$(call PARSE_SUBPROJECT,defaultsp))
# If the rule starts with the name of a known subproject
else ifeq ($$(call TRY_TO_MATCH_RULE_FROM_LIST,$$(SUBPROJECTS)),true)
$$(eval $$(call PARSE_SUBPROJECT,$$(MATCHED_ITEM)))
# Try to use the SUBPROJECT variable, which is either determined by the
# directory which invoked make, or passed as an argument to make
else ifneq ($$(SUBPROJECT),)
$$(eval $$(call PARSE_SUBPROJECT,$$(SUBPROJECT)))
# If there's no matching subproject, we assume it's the default
# This will allow you to leave the subproject part of the target out
else
$$(eval $$(call PARSE_SUBPROJECT,defaultsp))
endif
endef
# if we are going to compile all keyboards, match the rest of the rule
# for each of them
define PARSE_ALL_KEYBOARDS
$$(eval $$(call PARSE_ALL_IN_LIST,PARSE_KEYBOARD,$(KEYBOARDS)))
endef
# $1 Subproject
# When entering this, the keyboard and subproject are known, so now we need
# to determine which keymaps are going to get compiled
define PARSE_SUBPROJECT
# If we want to compile the default subproject, then we need to
# include the correct makefile to determine the actual name of it
ifeq ($1,defaultsp)
SUBPROJECT_DEFAULT=
$$(eval include $(ROOT_DIR)/keyboards/$$(CURRENT_KB)/Makefile)
CURRENT_SP := $$(SUBPROJECT_DEFAULT)
else
CURRENT_SP := $1
endif
# If current subproject is empty (the default was not defined), and we have a list of subproject
# then make all of them
ifeq ($$(CURRENT_SP),)
ifneq ($$(SUBPROJECTS),)
CURRENT_SP := allsp
endif
endif
# The special allsp is handled later
ifneq ($$(CURRENT_SP),allsp)
# get a list of all keymaps
KEYMAPS := $$(notdir $$(patsubst %/.,%,$$(wildcard $(ROOT_DIR)/keyboards/$$(CURRENT_KB)/keymaps/*/.)))
ifneq ($$(CURRENT_SP),)
# if the subproject is defined, then also look for keymaps inside the subproject folder
SP_KEYMAPS := $$(notdir $$(patsubst %/.,%,$$(wildcard $(ROOT_DIR)/keyboards/$$(CURRENT_KB)/$$(CURRENT_SP)/keymaps/*/.)))
KEYMAPS := $$(sort $$(KEYMAPS) $$(SP_KEYMAPS))
endif
# if the rule after removing the start of it is empty (we haven't specified a kemap or target)
# compile all the keymaps
ifeq ($$(RULE),)
$$(eval $$(call PARSE_ALL_KEYMAPS))
# The same if allkm was specified
else ifeq ($$(call COMPARE_AND_REMOVE_FROM_RULE,allkm),true)
$$(eval $$(call PARSE_ALL_KEYMAPS))
# Try to match the specified keyamp with the list of known keymaps
else ifeq ($$(call TRY_TO_MATCH_RULE_FROM_LIST,$$(KEYMAPS)),true)
$$(eval $$(call PARSE_KEYMAP,$$(MATCHED_ITEM)))
# Otherwise try to match the keymap from the current folder, or arguments to the make command
else ifneq ($$(KEYMAP),)
$$(eval $$(call PARSE_KEYMAP,$$(KEYMAP)))
else
# Otherwise something is wrong with the target
# Try to give as much information as possible of what it it was trying to do
ifeq ($$(CURRENT_SP),)
$$(info make: *** No rule to make target '$$(CURRENT_KB)-$$(RULE)'. Stop.)
else
$$(info make: *** No rule to make target '$$(CURRENT_KB)-$$(CURRENT_SP)-$$(RULE)'. Stop.)
endif
# Notice the tab instead of spaces below!
exit 1
endif
else
# As earlier mentione,d when allsb is specified, we call our self recursively
# for all of the subprojects
$$(eval $$(call PARSE_ALL_IN_LIST,PARSE_SUBPROJECT,$(SUBPROJECTS)))
endif
endef
# If we want to parse all subprojects, but the keyboard doesn't have any,
# then use defaultsp instead
define PARSE_ALL_SUBPROJECTS
ifeq ($$(SUBPROJECTS),)
$$(eval $$(call PARSE_SUBPROJECT,defaultsp))
else
$$(eval $$(call PARSE_ALL_IN_LIST,PARSE_SUBPROJECT,$$(SUBPROJECTS)))
endif
endef
# $1 Keymap
# This is the meat of compiling a keyboard, when entering this, everything is known
# keyboard, subproject, and keymap
# Note that we are not directly calling the command here, but instead building a list,
# which will later be processed
define PARSE_KEYMAP
CURRENT_KM = $1
# The rest of the rule is the target
# Remove the leading "-" from the target, as it acts as a separator
MAKE_TARGET := $$(patsubst -%,%,$$(RULE))
# We need to generate an unique indentifer to append to the COMMANDS list
COMMAND := COMMAND_KEYBOARD_$$(CURRENT_KB)_SUBPROJECT_$(CURRENT_SP)_KEYMAP_$$(CURRENT_KM)
COMMANDS += $$(COMMAND)
# If we are compiling a keyboard without a subproject, we want to display just the name
# of the keyboard, otherwise keyboard/subproject
ifeq ($$(CURRENT_SP),)
KB_SP := $(CURRENT_KB)
else
KB_SP := $(CURRENT_KB)/$$(CURRENT_SP)
endif
# Format it in bold
KB_SP := $(BOLD)$$(KB_SP)$(NO_COLOR)
# Specify the variables that we are passing forward to submake
MAKE_VARS := KEYBOARD=$$(CURRENT_KB) SUBPROJECT=$$(CURRENT_SP) KEYMAP=$$(CURRENT_KM)
MAKE_VARS += VERBOSE=$(VERBOSE) COLOR=$(COLOR)
# And the first part of the make command
MAKE_CMD := $$(MAKE) -r -R -C $(ROOT_DIR) -f build_keyboard.mk $$(MAKE_TARGET)
# The message to display
MAKE_MSG := $$(MSG_MAKE_KB)
# We run the command differently, depending on if we want more output or not
# The true version for silent output and the false version otherwise
COMMAND_true_$$(COMMAND) := \
printf "$$(MAKE_MSG)" | \
$$(MAKE_MSG_FORMAT); \
LOG=$$$$($$(MAKE_CMD) $$(MAKE_VARS) SILENT=true 2>&1) ; \
if [ $$$$? -gt 0 ]; \
then $$(PRINT_ERROR_PLAIN); \
elif [ "$$$$LOG" != "" ] ; \
then $$(PRINT_WARNING_PLAIN); \
else \
$$(PRINT_OK); \
fi;
COMMAND_false_$$(COMMAND) := \
printf "$$(MAKE_MSG)\n\n"; \
$$(MAKE_CMD) $$(MAKE_VARS) SILENT=false;
endef
# Just parse all the keymaps for a specifc keyboard
define PARSE_ALL_KEYMAPS
$$(eval $$(call PARSE_ALL_IN_LIST,PARSE_KEYMAP,$$(KEYMAPS)))
endef
# Set the silent mode depending on if we are trying to compile multiple keyboards or not
# By default it's on in that case, but it can be overriden by specifying silent=false
# from the command line
define SET_SILENT_MODE
ifdef SUB_IS_SILENT
SILENT_MODE := $(SUB_IS_SILENT)
else ifeq ($$(words $$(COMMANDS)),1)
SILENT_MODE := false
else
SILENT_MODE := true
endif
endef
include $(ROOT_DIR)/message.mk
RUN_COMMAND = \
$(COMMAND_$(SILENT_MODE)_$(COMMAND))
# Allow specifying just the subproject, in the keyboard directory, which will compile all keymaps
SUBPROJECTS := $(notdir $(patsubst %/Makefile,%,$(wildcard ./*/Makefile)))
.PHONY: $(SUBPROJECTS)
$(SUBPROJECTS): %: %-allkm
# Let's match everything, we handle all the rule parsing ourselves
.PHONY: %
%:
# Check if we have the CMP tool installed
cmp --version >/dev/null 2>&1; if [ $$? -gt 0 ]; then printf "$(MSG_NO_CMP)"; exit 1; fi;
# Check if the submodules are dirty, and display a warning if they are
git submodule status --recursive 2>/dev/null | \
while IFS= read -r x; do \
case "$$x" in \
\ *) ;; \
*) printf "$(MSG_SUBMODULE_DIRTY)";break;; \
esac \
done
$(eval $(call PARSE_RULE,$@))
$(eval $(call SET_SILENT_MODE))
# Run all the commands in the same shell, notice the + at the first line
# it has to be there to allow parallel execution of the submake
# This always tries to compile everything, even if error occurs in the middle
# But we return the error code at the end, to trigger travis failures
+error_occured=0; \
$(foreach COMMAND,$(COMMANDS),$(RUN_COMMAND)) \
if [ $$error_occured -gt 0 ]; then printf "$(MSG_ERRORS)" & exit $$error_occured; fi
# All should compile everything
.PHONY: all
all: all-keyboards
# Define some shortcuts, mostly for compability with the old syntax
.PHONY: all-keyboards
all-keyboards: allkb-allsp-allkm
.PHONY: all-keyboards-defaults
all-keyboards-defaults: allkb-allsp-default
# Generate the version.h file
GIT_VERSION := $(shell git describe --abbrev=6 --dirty --always --tags 2>/dev/null || date +"%Y-%m-%d-%H:%M:%S")
BUILD_DATE := $(shell date +"%Y-%m-%d-%H:%M:%S")
$(shell echo '#define QMK_VERSION "$(GIT_VERSION)"' > $(ROOT_DIR)/quantum/version.h)
$(shell echo '#define QMK_BUILDDATE "$(BUILD_DATE)"' >> $(ROOT_DIR)/quantum/version.h)
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