Download jq for generating compile_commands.json on macOS.

Author: solemnwarning

Makefile

@@ -27,6 +27,7 @@ BOTAN_PKG    ?= $(call pkg-select-ab,botan-3,botan-2)
 CAPSTONE_PKG ?= capstone
 JANSSON_PKG  ?= jansson
 LUA_PKG      ?= $(call pkg-select-ab,lua5.3,lua)
+JQ           ?= jq
 
 EXE ?= rehex
 EMBED_EXE ?= ./tools/embed
@@ -717,17 +718,17 @@ wxLua/%.cpp: $(WXLUA_BINDINGS)
 # The compile_commands.json fragment for each file is written out under .cc/ and then merged into
 # the top-level compile_commands.json, all are rebuilt when the Makefile(s) are changed.
 
-COMPILE_COMMAND_DEPENDENCIES := $(wildcard Makefile Makefile.*)
+COMPILE_COMMAND_DEPENDENCIES := $(wildcard Makefile Makefile.*) $(JQ)
 COMPILE_COMMAND_INTERMEDIATE_DIR := .cc
 
 .PHONY: compile_commands.json
 compile_commands.json: $(addprefix $(COMPILE_COMMAND_INTERMEDIATE_DIR)/,$(addsuffix .compile_command.json,$(APP_OBJS) $(TEST_OBJS)))
-	cat $^ | jq -s . > $@
+	cat $^ | $(JQ) -s . > $@
 
 # $(call emit-compile-command,$(COMPILE_COMMAND_INTERMEDIATE_DIR)/foo.o.compile_command.json,foo.c,$(CC) $(CFLAGS))
 define emit-compile-command
 	@mkdir -p $(dir $(1))
-	echo "{ \"directory\": $$(pwd | jq -R .), \"file\": $$(echo "$(patsubst $(COMPILE_COMMAND_INTERMEDIATE_DIR)/%,%,$(patsubst %.compile_command.json,%,$(2)))" | jq -R .), \"command\": $$(echo "$(3) -o $(2) $(patsubst $(COMPILE_COMMAND_INTERMEDIATE_DIR)/%,%,$(patsubst %.compile_command.json,%,$(2)))" | jq -R .) }" > $(1)
+	echo "{ \"directory\": $$(pwd | $(JQ) -R .), \"file\": $$(echo "$(patsubst $(COMPILE_COMMAND_INTERMEDIATE_DIR)/%,%,$(patsubst %.compile_command.json,%,$(2)))" | $(JQ) -R .), \"command\": $$(echo "$(3) -o $(2) $(patsubst $(COMPILE_COMMAND_INTERMEDIATE_DIR)/%,%,$(patsubst %.compile_command.json,%,$(2)))" | $(JQ) -R .) }" > $(1)
 endef
 
 $(COMPILE_COMMAND_INTERMEDIATE_DIR)/googletest/src/%.o.compile_command.json: googletest/src/%.cc $(GTKCONFIG_EXE) $(COMPILE_COMMAND_DEPENDENCIES)
@@ -751,6 +752,9 @@ $(COMPILE_COMMAND_INTERMEDIATE_DIR)/%.o.compile_command.json: %.cpp $(GTKCONFIG_
 $(COMPILE_COMMAND_INTERMEDIATE_DIR)/%.$(BUILD_TYPE).o.compile_command.json: %.cpp $(GTKCONFIG_EXE) $(COMPILE_COMMAND_DEPENDENCIES)
 	$(call emit-compile-command,$@,$<,$(CXX) $(CXXFLAGS))
 
+# Dummy rule for jq on platforms where we rely on a system-provided binary.
+jq:
+
 .PHONY: help/rehex.chm
 help/rehex.chm:
 	$(MAKE) -C help/ rehex.chm

Makefile.osx

@@ -53,6 +53,8 @@ LUA_LIBS        ?= -llua
 
 all: REHex.app
 
+JQ := .cc/jq
+
 include Makefile
 
 src/mainwindow.$(BUILD_TYPE).o: res/backward32.h res/document_new32.h res/document_open32.h res/document_save32.h res/document_save_as32.h res/forward32.h
@@ -112,3 +114,21 @@ REHex.dmg: REHex.app
 	$(DEPPRE)
 	$(CXX) $(CXXFLAGS) $(DEPFLAGS) -c -o $@ $<
 	$(DEPPOST)
+
+$(COMPILE_COMMAND_INTERMEDIATE_DIR)/%.o.compile_command.json: $(JQ) %.mm $(COMPILE_COMMAND_DEPENDENCIES)
+	$(call emit-compile-command,$@,$<,$(CXX) $(CXXFLAGS))
+
+.cc/jq:
+	mkdir -p .cc
+	if [ "$$(uname -m)" = "x86_64" ]; \
+	then \
+		curl -L https://github.com/jqlang/jq/releases/latest/download/jq-macos-amd64 > .cc/jq.tmp \
+			&& chmod 0755 .cc/jq.tmp \
+			&& .cc/jq.tmp --version > /dev/null \
+			&& mv .cc/jq.tmp .cc/jq; \
+	else \
+		curl -L https://github.com/jqlang/jq/releases/latest/download/jq-macos-arm64 > .cc/jq.tmp \
+			&& chmod 0755 .cc/jq.tmp \
+			&& .cc/jq.tmp --version > /dev/null \
+			&& mv .cc/jq.tmp .cc/jq; \
+	fi