1 files changed, 102 insertions, 0 deletions
diff --git a/include/scan.mk b/include/scan.mk
new file mode 100644
index 0000000..5af0359
--- /dev/null
+++ b/include/scan.mk
@@ -0,0 +1,102 @@
+include $(TOPDIR)/include/verbose.mk
+TMP_DIR:=$(TOPDIR)/tmp
+
+all: $(TMP_DIR)/.$(SCAN_TARGET)
+
+include $(TOPDIR)/include/host.mk
+
+SCAN_TARGET ?= packageinfo
+SCAN_NAME ?= package
+SCAN_DIR ?= package
+TARGET_STAMP:=$(TMP_DIR)/info/.files-$(SCAN_TARGET).stamp
+FILELIST:=$(TMP_DIR)/info/.files-$(SCAN_TARGET)-$(SCAN_COOKIE)
+OVERRIDELIST:=$(TMP_DIR)/info/.overrides-$(SCAN_TARGET)-$(SCAN_COOKIE)
+
+ifeq ($(IS_TTY),1)
+  define progress
+	printf "\033[M\r$(1)" >&2;
+  endef
+else
+  define progress
+	:;
+  endef
+endif
+
+define feedname
+$(if $(patsubst feeds/%,,$(1)),,$(word 2,$(subst /, ,$(1))))
+endef
+
+define PackageDir
+  $(TMP_DIR)/.$(SCAN_TARGET): $(TMP_DIR)/info/.$(SCAN_TARGET)-$(1)
+  $(TMP_DIR)/info/.$(SCAN_TARGET)-$(1): $(SCAN_DIR)/$(2)/Makefile $(SCAN_STAMP) $(foreach DEP,$(DEPS_$(SCAN_DIR)/$(2)/Makefile) $(SCAN_DEPS),$(wildcard $(if $(filter /%,$(DEP)),$(DEP),$(SCAN_DIR)/$(2)/$(DEP))))
+	{ \
+		$$(call progress,Collecting $(SCAN_NAME) info: $(SCAN_DIR)/$(2)) \
+		echo Source-Makefile: $(SCAN_DIR)/$(2)/Makefile; \
+		$(if $(3),echo Override: $(3),true); \
+		$(NO_TRACE_MAKE) --no-print-dir -r DUMP=1 FEED="$(call feedname,$(2))" -C $(SCAN_DIR)/$(2) $(SCAN_MAKEOPTS) 2>/dev/null || { \
+			mkdir -p "$(TOPDIR)/logs/$(SCAN_DIR)/$(2)"; \
+			$(NO_TRACE_MAKE) --no-print-dir -r DUMP=1 FEED="$(call feedname,$(2))" -C $(SCAN_DIR)/$(2) $(SCAN_MAKEOPTS) > $(TOPDIR)/logs/$(SCAN_DIR)/$(2)/dump.txt 2>&1; \
+			$$(call progress,ERROR: please fix $(SCAN_DIR)/$(2)/Makefile - see logs/$(SCAN_DIR)/$(2)/dump.txt for details\n) \
+			rm -f $$@; \
+		}; \
+		echo; \
+	} > $$@ || true
+endef
+
+$(OVERRIDELIST):
+	rm -f $(TMP_DIR)/info/.overrides-$(SCAN_TARGET)-*
+	touch $@
+
+ifeq ($(SCAN_NAME),target)
+  GREP_STRING=BuildTarget
+else
+  GREP_STRING=(Build/DefaultTargets|BuildPackage|.+Package)
+endif
+
+$(FILELIST): $(OVERRIDELIST)
+	rm -f $(TMP_DIR)/info/.files-$(SCAN_TARGET)-*
+	$(call FIND_L, $(SCAN_DIR)) $(SCAN_EXTRA) -mindepth 1 $(if $(SCAN_DEPTH),-maxdepth $(SCAN_DEPTH)) -name Makefile | xargs grep -aHE 'call $(GREP_STRING)' | sed -e 's#^$(SCAN_DIR)/##' -e 's#/Makefile:.*##' | uniq | awk -v of=$(OVERRIDELIST) -f include/scan.awk > $@
+
+$(TMP_DIR)/info/.files-$(SCAN_TARGET).mk: $(FILELIST)
+	( \
+		cat $< | awk '{print "$(SCAN_DIR)/" $$0 "/Makefile" }' | xargs grep -HE '^ *SCAN_DEPS *= *' | awk -F: '{ gsub(/^.*DEPS *= */, "", $$2); print "DEPS_" $$1 "=" $$2 }'; \
+		awk -F/ -v deps="$$DEPS" -v of="$(OVERRIDELIST)" ' \
+		BEGIN { \
+			while (getline < (of)) \
+				override[$$NF]=$$0; \
+			close(of) \
+		} \
+		{ \
+			info=$$0; \
+			gsub(/\//, "_", info); \
+			dir=$$0; \
+			pkg=""; \
+			if($$NF in override) \
+				pkg=override[$$NF]; \
+			print "$$(eval $$(call PackageDir," info "," dir "," pkg "))"; \
+		} ' < $<; \
+		true; \
+	) > $@
+
+-include $(TMP_DIR)/info/.files-$(SCAN_TARGET).mk
+
+$(TARGET_STAMP)::
+	+( \
+		$(NO_TRACE_MAKE) $(FILELIST); \
+		MD5SUM=$$(cat $(FILELIST) $(OVERRIDELIST) | (md5sum || md5) 2>/dev/null | awk '{print $$1}'); \
+		[ -f "$@.$$MD5SUM" ] || { \
+			rm -f $@.*; \
+			touch $@.$$MD5SUM; \
+			touch $@; \
+		} \
+	)
+
+$(TMP_DIR)/.$(SCAN_TARGET): $(TARGET_STAMP) $(SCAN_STAMP)
+	$(call progress,Collecting $(SCAN_NAME) info: merging...)
+	-cat $(FILELIST) | awk '{gsub(/\//, "_", $$0);print "$(TMP_DIR)/info/.$(SCAN_TARGET)-" $$0}' | xargs cat > $@ 2>/dev/null
+	$(call progress,Collecting $(SCAN_NAME) info: done)
+	echo
+
+FORCE:
+.PHONY: FORCE
+.NOTPARALLEL: