[package] base-files: add an experimental "-c" flag which tries to preserve *all...

[openwrt.git] / include / scan.mk

diff --git a/include/scan.mk b/include/scan.mk
index 3229523..288a100 100644 (file)
--- a/include/scan.mk
+++ b/include/scan.mk
@@ -1,9 +1,15 @@
 include $(TOPDIR)/include/verbose.mk
+TMP_DIR:=$(TOPDIR)/tmp
 
-SCAN_TARGET ?= pkginfo
+all: $(TMP_DIR)/.$(SCAN_TARGET)
+
+include $(TOPDIR)/include/host.mk
+
+SCAN_TARGET ?= packageinfo
 SCAN_NAME ?= package
 SCAN_DIR ?= package
-SCAN_DEPS ?= include/package.mk
+TARGET_STAMP:=$(TMP_DIR)/info/.files-$(SCAN_TARGET).stamp
+FILELIST:=$(TMP_DIR)/info/.files-$(SCAN_TARGET)-$(SCAN_COOKIE)
 
 ifeq ($(IS_TTY),1)
   define progress
@@ -11,45 +17,55 @@ ifeq ($(IS_TTY),1)
   endef
 else
   define progress
-       :
+       :;
   endef
 endif
 
-SCAN = $(patsubst $(SCAN_DIR)/%/Makefile,%,$(shell ls $(SCAN_DIR)/*/Makefile))
-tmp/.$(SCAN_TARGET):
-       @($(call progress,Collecting $(SCAN_NAME) info: merging...))
-       for file in $(SCAN); do \
-               cat tmp/info/.$(SCAN_TARGET)-$$file; \
-       done > $@
-       @($(call progress,Collecting $(SCAN_NAME) info: done))
-       @echo
-
-ifneq ($(SCAN_EXTRA),)
-SCAN_STAMP=tmp/info/.scan-$(SCAN_TARGET)-$(shell ls $(SCAN_EXTRA) 2>/dev/null | (md5sum || md5) 2>/dev/null | cut -d' ' -f1)
-$(SCAN_STAMP):
-       rm -f tmp/info/.scan-$(SCAN_TARGET)-*
-       touch $@
-endif
-
-# FIXME: generate this dynamically?
-ifeq ($(SCAN_TARGET),pkginfo)
-tmp/info/.pkginfo-kernel: $(shell ls package/kernel/modules/*.mk)
-endif
-
-define scanfiles
-$(foreach FILE,$(SCAN),
-  tmp/.$(SCAN_TARGET): tmp/info/.$(SCAN_TARGET)-$(FILE) FORCE
-  tmp/info/.$(SCAN_TARGET)-$(FILE): $(SCAN_DEPS) $(SCAN_DIR)/$(FILE)/Makefile $(SCAN_STAMP)
+define PackageDir
+  $(TMP_DIR)/.$(SCAN_TARGET): $(TMP_DIR)/info/.$(SCAN_TARGET)-$(1)
+  $(TMP_DIR)/info/.$(SCAN_TARGET)-$(1): $(SCAN_DIR)/$(2)/Makefile $(SCAN_STAMP) $(foreach DEP,$(DEPS_$(SCAN_DIR)/$(1)/Makefile) $(SCAN_DEPS),$(wildcard $(if $(filter /%,$(DEP)),$(DEP),$(SCAN_DIR)/$(1)/$(DEP))))
        { \
-               $$(call progress,Collecting $(SCAN_NAME) info: $(SCAN_DIR)/$(FILE)) \
-               echo Source-Makefile: $(SCAN_DIR)/$(FILE)/Makefile; \
-               $(NO_TRACE_MAKE) --no-print-dir DUMP=1 -C $(SCAN_DIR)/$(FILE) 3>/dev/null || echo "ERROR: please fix $(SCAN_DIR)/$(FILE)/Makefile" >&2; \
+               $$(call progress,Collecting $(SCAN_NAME) info: $(SCAN_DIR)/$(2)) \
+               echo Source-Makefile: $(SCAN_DIR)/$(2)/Makefile; \
+               $(NO_TRACE_MAKE) --no-print-dir -r DUMP=1 -C $(SCAN_DIR)/$(2) $(SCAN_MAKEOPTS) 2>/dev/null || { $$(call progress,ERROR: please fix $(SCAN_DIR)/$(2)/Makefile\n) rm -f $$@; }; \
                echo; \
-       } > $$@
-)
-
+       } > $$@ || true
 endef
-$(eval $(call scanfiles))
+
+$(FILELIST):
+       rm -f $(TMP_DIR)/info/.files-$(SCAN_TARGET)-*
+       $(call FIND_L, $(SCAN_DIR)) $(SCAN_EXTRA) -mindepth 1 $(if $(SCAN_DEPTH),-maxdepth $(SCAN_DEPTH)) -name Makefile | xargs grep -HE 'call (Build/DefaultTargets|Build(Package|Target)|.+Package)' | sed -e 's#^$(SCAN_DIR)/##' -e 's#/Makefile:.*##' | uniq > $@
+
+$(TMP_DIR)/info/.files-$(SCAN_TARGET).mk: $(FILELIST)
+       ( \
+               cat $< | awk '{print "$(SCAN_DIR)/" $$0 "/Makefile" }' | xargs grep -HE '^ *SCAN_DEPS *= *' | awk -F: '{ gsub(/^.*DEPS *= */, "", $$2); print "DEPS_" $$1 "=" $$2 }'; \
+               awk -v deps="$$DEPS" '{ \
+                       info=$$0; \
+                       gsub(/\//, "_", info); \
+                       print "$$(eval $$(call PackageDir," info "," $$0 "))"; \
+               } ' < $<; \
+               true; \
+       ) > $@
+
+-include $(TMP_DIR)/info/.files-$(SCAN_TARGET).mk
+
+$(TARGET_STAMP)::
+       +( \
+               $(NO_TRACE_MAKE) $(FILELIST); \
+               MD5SUM=$$(cat $(FILELIST) | (md5sum || md5) 2>/dev/null | awk '{print $$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: