From 10f39becdfd787c091cc7e65bfde822ca15533b3 Mon Sep 17 00:00:00 2001
From: Arkadiusz Hiler <ahiler@codeweavers.com>
Date: Wed, 20 Sep 2023 17:10:05 +0300
Subject: [PATCH] make: Collect compile_commands.json in
 $(OBJ)/compile_commands/

All compile_commands.json from the build directories will be copied to
the compile_commands subdirectory adjusting the paths of the source to
point to the real (not the rsynced) one.

NOTE: it still may point to the build dir for things like generated config.h
---
 make/rules-common.mk | 8 ++++++++
 make/rules-source.mk | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/make/rules-common.mk b/make/rules-common.mk
index b057bb72..00a1b4ff 100644
--- a/make/rules-common.mk
+++ b/make/rules-common.mk
@@ -49,6 +49,10 @@ $$(OBJ)/.$(1)-dist$(3): $$(OBJ)/.$(1)-post-build$(3)
 ifneq ($(UNSTRIPPED_BUILD),)
 $$(OBJ)/.$(1)-dist$(3):
 	@echo ":: installing $(3)bit $(1)..." >&2
+	if [ -f "$$($(2)_OBJ$(3))/compile_commands.json" ]; then \
+	    mkdir -p "$$(OBJ)/compile_commands/$(1)$(3)/"; \
+	    sed "s#$$($(2)_SRC)#$$($(2)_ORIGIN)#g" "$$($(2)_OBJ$(3))/compile_commands.json" > "$$(OBJ)/compile_commands/$(1)$(3)/compile_commands.json"; \
+	fi
 	mkdir -p $$($(2)_LIBDIR$(3))/ $$(DST_LIBDIR$(3))/
 	cd $$($(2)_LIBDIR$(3)) && find -type f -printf '$$(DST_LIBDIR$(3))/%h\0' | sort -z | uniq -z | xargs $(--verbose?) -0 -r -P$$(J) mkdir -p
 	cd $$($(2)_LIBDIR$(3)) && find -type l -printf '%p\0$$(DST_LIBDIR$(3))/%p\0' | xargs $(--verbose?) -0 -r -P$$(J) -n2 cp -a
@@ -62,6 +66,10 @@ $$(OBJ)/.$(1)-dist$(3):
 else
 $$(OBJ)/.$(1)-dist$(3):
 	@echo ":: installing $(3)bit $(1)..." >&2
+	if [ -f "$$($(2)_OBJ$(3))/compile_commands.json" ]; then \
+	    mkdir -p "$$(OBJ)/compile_commands/$(1)$(3)/"; \
+	    sed "s#$$($(2)_SRC)#$$($(2)_ORIGIN)#g" "$$($(2)_OBJ$(3))/compile_commands.json" > "$$(OBJ)/compile_commands/$(1)$(3)/compile_commands.json"; \
+	fi
 	mkdir -p $$($(2)_LIBDIR$(3))/ $$(DST_LIBDIR$(3))/
 	cd $$($(2)_LIBDIR$(3)) && find -type f -printf '$$(DST_LIBDIR$(3))/%h\0' | sort -z | uniq -z | xargs $(--verbose?) -0 -r -P$$(J) mkdir -p
 	cd $$($(2)_LIBDIR$(3)) && find -type l -printf '%p\0$$(DST_LIBDIR$(3))/%p\0' | xargs $(--verbose?) -0 -r -P$$(J) -n2 cp -a
diff --git a/make/rules-source.mk b/make/rules-source.mk
index 4903de0b..4f8cd8fa 100644
--- a/make/rules-source.mk
+++ b/make/rules-source.mk
@@ -8,12 +8,14 @@
 #
 # outputs:
 #   $($(2)_SRC): variable, absolute rsynced source folder
+#   $($(2)_ORIGIN): variable, absolute origin source folder
 #   $(1)-rebuild: target, call it to force package rebuild
 #   $(1)-source: target, tracking package source changes
 #   $(1)-clean: target, clean package and force rebuild
 #
 define create-rules-source
 $(2)_SRC = $$(OBJ)/src-$(1)
+$(2)_ORIGIN = $(3)
 
 $(1)-rebuild:
 .PHONY: $(1)-rebuild