Makefile

-include Makefile.local # for optional local options e.g. threads

# Recipes for this Makefile

## Build the compiler
##   $ make
## Build the compiler with progress output
##   $ make progress=true
## Clean up built files then build the compiler
##   $ make clean crystal
## Build the compiler in release mode
##   $ make crystal release=1
## Run all specs in verbose mode
##   $ make spec verbose=1

CRYSTAL ?= crystal ## which previous crystal compiler use
LLVM_CONFIG ?=     ## llvm-config command path to use

release ?=      ## Compile in release mode
stats ?=        ## Enable statistics output
progress ?=     ## Enable progress output
threads ?=      ## Maximum number of threads to use
debug ?=        ## Add symbolic debug info
verbose ?=      ## Run specs in verbose mode
junit_output ?= ## Path to output junit results
static ?=       ## Enable static linking
interpreter ?=  ## Enable interpreter feature

O := .build
SOURCES := $(shell find src -name '*.cr')
SPEC_SOURCES := $(shell find spec -name '*.cr')
override FLAGS += -D strict_multi_assign $(if $(release),--release )$(if $(stats),--stats )$(if $(progress),--progress )$(if $(threads),--threads $(threads) )$(if $(debug),-d )$(if $(static),--static )$(if $(LDFLAGS),--link-flags="$(LDFLAGS)" )$(if $(target),--cross-compile --target $(target) )$(if $(interpreter),,-Dwithout_interpreter )
SPEC_WARNINGS_OFF := --exclude-warnings spec/std --exclude-warnings spec/compiler --exclude-warnings spec/primitives
SPEC_FLAGS := $(if $(verbose),-v )$(if $(junit_output),--junit_output $(junit_output) )
CRYSTAL_CONFIG_LIBRARY_PATH := '$$ORIGIN/../lib/crystal'
CRYSTAL_CONFIG_BUILD_COMMIT := $(shell git rev-parse --short HEAD 2> /dev/null)
CRYSTAL_CONFIG_PATH := '$$ORIGIN/../share/crystal/src'
SOURCE_DATE_EPOCH := $(shell (git show -s --format=%ct HEAD || stat -c "%Y" Makefile || stat -f "%m" Makefile) 2> /dev/null)
EXPORTS := \
  CRYSTAL_CONFIG_BUILD_COMMIT="$(CRYSTAL_CONFIG_BUILD_COMMIT)" \
	CRYSTAL_CONFIG_PATH=$(CRYSTAL_CONFIG_PATH) \
	SOURCE_DATE_EPOCH="$(SOURCE_DATE_EPOCH)"
EXPORTS_BUILD := \
	CRYSTAL_CONFIG_LIBRARY_PATH=$(CRYSTAL_CONFIG_LIBRARY_PATH)
SHELL = sh
LLVM_CONFIG := $(shell src/llvm/ext/find-llvm-config)
LLVM_VERSION := $(if $(LLVM_CONFIG), $(shell $(LLVM_CONFIG) --version 2> /dev/null))
LLVM_EXT_DIR = src/llvm/ext
LLVM_EXT_OBJ = $(LLVM_EXT_DIR)/llvm_ext.o
DEPS = $(LLVM_EXT_OBJ)
CXXFLAGS += $(if $(debug),-g -O0)
CRYSTAL_VERSION ?= $(shell cat src/VERSION)

DESTDIR ?=
PREFIX ?= /usr/local
BINDIR ?= $(DESTDIR)$(PREFIX)/bin
MANDIR ?= $(DESTDIR)$(PREFIX)/share/man
LIBDIR ?= $(DESTDIR)$(PREFIX)/lib
DATADIR ?= $(DESTDIR)$(PREFIX)/share/crystal
INSTALL ?= /usr/bin/install

ifeq ($(shell command -v ld.lld >/dev/null && uname -s),Linux)
  EXPORT_CC ?= CC="$(CC) -fuse-ld=lld"
endif

ifeq ($(or $(TERM),$(TERM),dumb),dumb)
  colorize = $(shell printf >&2 "$1")
else
  colorize = $(shell printf >&2 "\033[33m$1\033[0m\n")
endif

check_llvm_config = $(eval \
	check_llvm_config := $(if $(LLVM_VERSION),\
	  $(call colorize,Using $(LLVM_CONFIG) [version=$(LLVM_VERSION)]),\
	  $(error "Could not locate compatible llvm-config, make sure it is installed and in your PATH, or set LLVM_CONFIG. Compatible versions: $(shell cat src/llvm/ext/llvm-versions.txt)))\
	)

.PHONY: all
all: crystal ## Build all files (currently crystal only) [default]

.PHONY: help
help: ## Show this help
	@echo
	@printf '\033[34mtargets:\033[0m\n'
	@grep -hE '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) |\
		sort |\
		awk 'BEGIN {FS = ":.*?## "}; {printf "  \033[36m%-15s\033[0m %s\n", $$1, $$2}'
	@echo
	@printf '\033[34moptional variables:\033[0m\n'
	@grep -hE '^[a-zA-Z_-]+ \?=.*?## .*$$' $(MAKEFILE_LIST) |\
		sort |\
		awk 'BEGIN {FS = " \\?=.*?## "}; {printf "  \033[36m%-15s\033[0m %s\n", $$1, $$2}'
	@echo
	@printf '\033[34mrecipes:\033[0m\n'
	@grep -hE '^##.*$$' $(MAKEFILE_LIST) |\
		awk 'BEGIN {FS = "## "}; /^## [a-zA-Z_-]/ {printf "  \033[36m%s\033[0m\n", $$2}; /^##  / {printf "  %s\n", $$2}'

.PHONY: spec
spec: $(O)/all_spec ## Run all specs
	$(O)/all_spec $(SPEC_FLAGS)

.PHONY: std_spec
std_spec: $(O)/std_spec ## Run standard library specs
	$(O)/std_spec $(SPEC_FLAGS)

.PHONY: compiler_spec
compiler_spec: $(O)/compiler_spec ## Run compiler specs
	$(O)/compiler_spec $(SPEC_FLAGS)

.PHONY: primitives_spec
primitives_spec: $(O)/primitives_spec ## Run primitives specs
	$(O)/primitives_spec $(SPEC_FLAGS)

.PHONY: smoke_test ## Build specs as a smoke test
smoke_test: $(O)/std_spec $(O)/compiler_spec $(O)/crystal

.PHONY: samples ## Build example programs
samples:
	$(MAKE) -C samples

.PHONY: docs
docs: ## Generate standard library documentation
	$(call check_llvm_config)
	./bin/crystal docs src/docs_main.cr $(DOCS_OPTIONS) --project-name=Crystal --project-version=$(CRYSTAL_VERSION) --source-refname=$(CRYSTAL_CONFIG_BUILD_COMMIT)

.PHONY: crystal
crystal: $(O)/crystal ## Build the compiler

.PHONY: deps llvm_ext
deps: $(DEPS) ## Build dependencies
llvm_ext: $(LLVM_EXT_OBJ)

.PHONY: install
install: $(O)/crystal man/crystal.1.gz ## Install the compiler at DESTDIR
	$(INSTALL) -D -m 0755 "$(O)/crystal" "$(BINDIR)/crystal"

	$(INSTALL) -d -m 0755 $(DATADIR)
	cp -av src "$(DATADIR)/src"
	rm -rf "$(DATADIR)/$(LLVM_EXT_OBJ)" # Don't install llvm_ext.o

	$(INSTALL) -D -m 644 man/crystal.1.gz "$(MANDIR)/man1/crystal.1.gz"
	$(INSTALL) -D -m 644 LICENSE "$(DESTDIR)$(PREFIX)/share/licenses/crystal/LICENSE"

	$(INSTALL) -D -m 644 etc/completion.bash "$(DESTDIR)$(PREFIX)/share/bash-completion/completions/crystal"
	$(INSTALL) -D -m 644 etc/completion.zsh "$(DESTDIR)$(PREFIX)/share/zsh/site-functions/_crystal"

.PHONY: uninstall
uninstall: ## Uninstall the compiler from DESTDIR
	rm -f "$(BINDIR)/crystal"

	rm -rf "$(DATADIR)/src"

	rm -f "$(MANDIR)/man1/crystal.1.gz"
	rm -f "$(DESTDIR)$(PREFIX)/share/licenses/crystal/LICENSE"

	rm -f "$(DESTDIR)$(PREFIX)/share/bash-completion/completions/crystal"
	rm -f "$(DESTDIR)$(PREFIX)/share/zsh/site-functions/_crystal"

.PHONY: install_docs
install_docs: docs ## Install docs at DESTDIR
	$(INSTALL) -d -m 0755 $(DATADIR)

	cp -av docs "$(DATADIR)/docs"
	cp -av samples "$(DATADIR)/examples"

.PHONY: uninstall_docs
uninstall_docs: ## Uninstall docs from DESTDIR
	rm -rf "$(DATADIR)/docs"
	rm -rf "$(DATADIR)/examples"

$(O)/all_spec: $(DEPS) $(SOURCES) $(SPEC_SOURCES)
	$(call check_llvm_config)
	@mkdir -p $(O)
	$(EXPORT_CC) $(EXPORTS) ./bin/crystal build $(FLAGS) $(SPEC_WARNINGS_OFF) -o $@ spec/all_spec.cr

$(O)/std_spec: $(DEPS) $(SOURCES) $(SPEC_SOURCES)
	$(call check_llvm_config)
	@mkdir -p $(O)
	$(EXPORT_CC) ./bin/crystal build $(FLAGS) $(SPEC_WARNINGS_OFF) -o $@ spec/std_spec.cr

$(O)/compiler_spec: $(DEPS) $(SOURCES) $(SPEC_SOURCES)
	$(call check_llvm_config)
	@mkdir -p $(O)
	$(EXPORT_CC) $(EXPORTS) ./bin/crystal build $(FLAGS) $(SPEC_WARNINGS_OFF) -o $@ spec/compiler_spec.cr

$(O)/primitives_spec: $(O)/crystal $(DEPS) $(SOURCES) $(SPEC_SOURCES)
	@mkdir -p $(O)
	$(EXPORT_CC) ./bin/crystal build $(FLAGS) $(SPEC_WARNINGS_OFF) -o $@ spec/primitives_spec.cr

$(O)/crystal: $(DEPS) $(SOURCES)
	$(call check_llvm_config)
	@mkdir -p $(O)
	$(EXPORTS) $(EXPORTS_BUILD) ./bin/crystal build $(FLAGS) -o $@ src/compiler/crystal.cr -D without_openssl -D without_zlib

$(LLVM_EXT_OBJ): $(LLVM_EXT_DIR)/llvm_ext.cc
	$(call check_llvm_config)
	$(CXX) -c $(CXXFLAGS) -o $@ $< $(shell $(LLVM_CONFIG) --cxxflags)

man/%.gz: man/%
	gzip -c -9 $< > $@

.PHONY: clean
clean: clean_crystal ## Clean up built directories and files
	rm -rf $(LLVM_EXT_OBJ)

.PHONY: clean_crystal
clean_crystal: ## Clean up crystal built files
	rm -rf $(O)
	rm -rf ./docs

.PHONY: clean_cache
clean_cache: ## Clean up CRYSTAL_CACHE_DIR files
	rm -rf $(shell ./bin/crystal env CRYSTAL_CACHE_DIR)