Makefile

SHELL = /bin/sh

.SUFFIXES:
.SUFFIXES: .sh

PREFIX ?= /usr/local
EXEC_PREFIX ?= $(PREFIX)
bindir ?= $(EXEC_PREFIX)/bin
DESTDIR ?=

srcdir ?= .

BUILD_DIR := build
BUILD_FILE := $(BUILD_DIR)/doasedit


LIB_SCRIPTS := doasedit_common \
			 doasedit_client \
			 doasedit_server
MAIN_SCRIPT := doasedit_main

STRIPPED_LIBS := $(patsubst %,$(BUILD_DIR)/%.stripped,$(LIB_SCRIPTS))
STRIPPED_MAIN := $(BUILD_DIR)/$(MAIN_SCRIPT).stripped

INSTALL := install
INSTALL_PROGRAM := $(INSTALL)
INSTALL_DATA = ${INSTALL} -m 644

.PHONY: all installdirs install check clean

all: $(BUILD_FILE)

$(BUILD_DIR):
	mkdir -p "$(BUILD_DIR)"

$(BUILD_DIR)/%.stripped: $(srcdir)/%.sh | $(BUILD_DIR)
	@printf '\n###\n### BEGIN %s\n###\n' "$(notdir $<)" >> $@
	@sed -e '1 s/^#!.*$$//' $< >> $@
	@printf '\n' >> $@
	@printf '\n###\n### END %s\n###\n' "$(notdir $<)" >> $@

$(BUILD_FILE): $(STRIPPED_LIBS) $(STRIPPED_MAIN)
	@printf '%s\n' "#!/bin/sh" > $@
	@for lib in $(STRIPPED_LIBS); do \
		cat "$$lib" >> $@; \
		printf '\n' >> $@; \
	done
	@cat "$(STRIPPED_MAIN)" >> $@
	@chmod 755 "$(BUILD_FILE)"
	@echo "Built $(BUILD_FILE)"

installdirs:
	mkdir -p "$(DESTDIR)$(bindir)"

install: $(BUILD_FILE) | installdirs
		@$(INSTALL_PROGRAM) -m 755 "$(BUILD_FILE)" "$(DESTDIR)$(bindir)/doasedit"
		@echo "Installed to $(DESTDIR)$(bindir)/doasedit"

check: $(BUILD_FILE)
	@command -v shellcheck >/dev/null 2>&1 || { echo "shellcheck not found; install shellcheck to run 'make validate'"; exit 2; }
	@echo "Running shellcheck on $(BUILD_FILE)..."
	@rcfile="$(abspath $(srcdir)/.shellcheckrc)"; \
	if [ -f "$$rcfile" ]; then \
		shellcheck --rcfile "$$rcfile" -S error "$(BUILD_FILE)"; \
	else \
		shellcheck -S error "$(BUILD_FILE)"; \
	fi \
	status="$$?" \
	if [ "$$status" -ne 0 ]; then \
		printf 'Shellcheck found errors'; \
		exit "$$status" \
	else \
		printf 'shellcheck found no errors' \
	fi

clean: 
	-rm -rf "$(BUILD_FILE)" "$(BUILD_DIR)"