#
# \brief  Initial processing of archive-path arguments
# \author Norman Feske
# \date   2017-03-21
#
# This include transforms an arbitrary number of user-specified arguments
# into a digestable representation in the form of the 'ARCHIVES' variables
# indexed by the archive type.
#

ARCHIVE_PATHS := $(sort $(MAKECMDGOALS))
ARCHIVE_TYPES := api src raw bin pkg


#
# Categorize argument paths into the different types of archives.
#
# The 'categorize_archives' function populates the 'ARCHIVES(<type>)' variables
# with the matching paths.
#
#

categorize_archives = $(foreach PATH,$(ARCHIVE_PATHS),\
                         $(if $(call archive_has_type,$(PATH),$1),\
                            $(eval ARCHIVES($1) += $(PATH))))

$(foreach TYPE,$(ARCHIVE_TYPES),$(call categorize_archives,$(TYPE)))

CATEGORIZED   := $(foreach TYPE,$(ARCHIVE_TYPES),${ARCHIVES(${TYPE})})
UNCATEGORIZED := $(filter-out $(CATEGORIZED),$(ARCHIVE_PATHS))

checked_no_uncategorized:
ifneq ($(UNCATEGORIZED),)
	@echo "Error: unknown archive type ($(UNCATEGORIZED))"; false
endif


#
# Sub-categorize source-pkg archives (<user>/pkg/<name>) from binary-pkg
# archives (<user>/pkg/<spec>/<name>) so that 'ARCHIVES(pkg)' contains source
# pkgs only, and 'ARCHIVES(binpkg)' contains binary pkgs.
#
# If the path contains 4 elements, it refers to a binary pkg where the third
# element is the build spec. Otherwise, the path refers to a source pkg.
#

_src_pkg = $(if $(word 4,$(subst /, ,$1)),,$1)
_bin_pkg = $(if $(word 4,$(subst /, ,$1)),$1,)

ARCHIVES(binpkg) := $(strip $(foreach PKG,${ARCHIVES(pkg)},$(call _bin_pkg,$(PKG))))
ARCHIVES(pkg)    := $(strip $(foreach PKG,${ARCHIVES(pkg)},$(call _src_pkg,$(PKG))))