NAME := qemush

# qemu Unix user
QEMU_USER := qemu
# sudo as qemu
SUDO_QEMU := sudo -u $(QEMU_USER)

QEMUSH := /usr/local/bin/$(NAME)
SRC_QEMUSH := bin/$(NAME)
SRCD := src

# This repo's equivalent of effective qemu Unix user home
SRC_QEMU_HOME := qemu
SRC_QEMU_BIN := $(SRC_QEMU_HOME)/bin
SRC_LAUNCHERSD := $(SRC_QEMU_HOME)/launchers
# Actual qemu Unix user home
QEMU_HOME := $(shell echo ~$(QEMU_USER))
QEMU_BIN := $(QEMU_HOME)/bin
LAUNCHERSD := $(QEMU_HOME)/launchers

# Names of all qemush modules
SRC_MODULES_NAMES := $(notdir $(wildcard $(SRC_QEMU_BIN)/*))
# Target location of modules
MODULES := $(addprefix $(QEMU_BIN)/,$(SRC_MODULES_NAMES))
# Names of launchers scripts
SRC_LAUNCHERS_NAMES := $(notdir $(wildcard $(SRC_LAUNCHERSD)/*))
# Target location of launchers
LAUNCHERS := $(addprefix $(LAUNCHERSD)/,$(SRC_LAUNCHERS_NAMES))
# Mode to apply
BINS_MODE := 740

# Compiler options
CC := cc
CC_OPTIONS = -O3
# C sources file format
SRC_FMT := .c
# Names of C programs to compile
SRC_C_SOURCES_NAMES := $(notdir $(basename $(wildcard $(SRCD)/*$(SRC_FMT))))
# Location of C binaries
C_BINARIES := $(addprefix $(QEMU_BIN)/,$(SRC_C_SOURCES_NAMES))

# Directories in ~qemu necessary for qemush to work
QEMUSH_DIRS_NAMES := bin launchers images
QEMUSH_DIRS := $(addprefix $(QEMU_HOME)/,$(QEMUSH_DIRS_NAMES))

install: $(QEMUSH_DIRS) $(MODULES) $(C_BINARIES) $(QEMUSH) $(LAUNCHERS)

$(QEMUSH_DIRS):
	$(SUDO_QEMU) mkdir -p $@
	$(SUDO_QEMU) chmod 750 $@

$(QEMUSH): $(SRC_QEMUSH)
	sudo install -m 755 $^ $@

$(MODULES): $(QEMU_HOME)%: $(SRC_QEMU_HOME)%
	$(SUDO_QEMU) install -m $(BINS_MODE) $^ $@

$(C_BINARIES): $(QEMU_BIN)%: $(SRCD)%$(SRC_FMT)
	$(SUDO_QEMU) $(CC) $(CC_OPTIONS) -o $@ $^
	$(SUDO_QEMU) chmod $(BINS_MODE) $@

$(LAUNCHERS): $(LAUNCHERSD)%: $(SRC_LAUNCHERSD)%
	$(SUDO_QEMU) install -m $(BINS_MODE) $^ $@