#!/usr/bin/make -f

#
# \brief  Tool for assembling a package archive
# \author Norman Feske
# \date   2017-03-17
#

define HELP_MESSAGE

  Tool for assembling a package archive

  usage:

    $(firstword $(MAKEFILE_LIST)) <pkg-name> USER=<user>

    <pkg-name>  name of the package
    <user>      identity of the archive creator

endef

export GENODE_DIR := $(realpath $(dir $(MAKEFILE_LIST))/../../..)

include $(GENODE_DIR)/tool/depot/mk/front_end.inc

#
# The target is the name of the archive
#
ARCHIVE  := $(TARGET)
TAG_FILE := README

#
# Define location of recipe and the exported archive
#
RECIPE_DIR    := $(call recipe_dir,pkg/$(ARCHIVE))
DEPOT_SUB_DIR := $(DEPOT_DIR)/$(USER)/pkg

#
# Include common archive-creation steps
#
include $(GENODE_DIR)/tool/depot/mk/extract.inc

#
# Generate 'archives' list with version information
#
_version = $(call recipe_version,$(call archive_type,$1)/$(call archive_recipe,$1))

_versioned_entry = _/$(call archive_type,$1)/$(call archive_recipe,$1)-$(call _version,$1)

VERSIONED_ARCHIVES := $(foreach A,$(call file_content,$(RECIPE_DIR)/archives),\
                         $(if $(call archive_has_user,$A,_),$(call _versioned_entry,$A),$A))

$(DEPOT_ARCHIVE_DIR).hash: $(DEPOT_ARCHIVE_DIR)/_archives

$(DEPOT_ARCHIVE_DIR)/_archives: checked_recipe_hash_value_exists
	$(VERBOSE)( $(foreach A,$(VERSIONED_ARCHIVES),echo "$A";) ) > $@

#
# Copy remaining recipe content to archive as is, except for files with a
# special meaning or backup files.
#
RECIPE_FILES := $(notdir $(wildcard $(RECIPE_DIR)/*))
RECIPE_FILES := $(patsubst %~,,$(RECIPE_FILES))
RECIPE_FILES := $(filter-out archives hash,$(RECIPE_FILES))

checked_readme_exists:
ifneq ($(filter-out $(RECIPE_FILES),README),)
	@$(ECHO) "Error: missing README in package recipe, expected:\n" \
	          "      $(RECIPE_DIR)/README"; false
endif

.NOTPARALLEL: $(DEPOT_ARCHIVE_DIR)/$(TAG_FILE)

$(DEPOT_ARCHIVE_DIR)/$(TAG_FILE): checked_readme_exists
	$(VERBOSE)cp $(addprefix $(RECIPE_DIR)/,$(RECIPE_FILES)) $(DEPOT_ARCHIVE_DIR)/

#
# Replace the '_' marker in the 'archives' list with the actual user name
#
$(DEPOT_ARCHIVE_DIR)/archives: $(DEPOT_ARCHIVE_DIR).hash $(DEPOT_ARCHIVE_DIR)/_archives
	$(VERBOSE)sed "s/^_/$(USER)/" $(DEPOT_ARCHIVE_DIR)/_archives > $@
	$(VERBOSE)rm -f $(DEPOT_ARCHIVE_DIR)/_archives

_rename_to_final_archive: $(DEPOT_ARCHIVE_DIR)/archives