openwrt/include/scan.mk
John Crispin de3bf7e4c2 build: allow openwrt.git packages to be replaced by feeds
Currently, replacing a package available in openwrt.git requires
modifications in openwrt.git, or requires duplicating the package in a
feed but with a different name, which causes all kind of problems
related to dependencies (all packages selecting it would have to be
modified accordingly to select the new package).

With this change, if a package with the same name is present both in
feeds/ and package/ folders, the one in feeds/ can override the one
in package/, both in the menuconfig and during the build, by passing the
"-f" option to "./scripts/feeds install"

This mechanism is particularly useful for vendor tree, or in general for
application which needs to replace one particular package which exists
within openwrt.git by a custom/newer version.

Signed-off-by: Mathieu Olivari <mathieu@qca.qualcomm.com>

SVN-Revision: 44076
2015-01-22 09:35:40 +00:00

81 lines
2.7 KiB
Makefile

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)
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))))
{ \
$$(call progress,Collecting $(SCAN_NAME) info: $(SCAN_DIR)/$(2)) \
echo Source-Makefile: $(SCAN_DIR)/$(2)/Makefile; \
$(NO_TRACE_MAKE) --no-print-dir -r DUMP=1 FEED="$(call feedname,$(2))" -C $(SCAN_DIR)/$(2) $(SCAN_MAKEOPTS) 2>/dev/null || { \
mkdir -p "$(TOPDIR)/logs/$(SCAN_DIR)/$(2)"; \
$(NO_TRACE_MAKE) --no-print-dir -r DUMP=1 FEED="$(call feedname,$(2))" -C $(SCAN_DIR)/$(2) $(SCAN_MAKEOPTS) > $(TOPDIR)/logs/$(SCAN_DIR)/$(2)/dump.txt 2>&1; \
$$(call progress,ERROR: please fix $(SCAN_DIR)/$(2)/Makefile - see logs/$(SCAN_DIR)/$(2)/dump.txt for details\n) \
rm -f $$@; \
}; \
echo; \
} > $$@ || true
endef
$(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 | awk -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 -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: