# Include from a project Makefile. Sets VERSION (canonical, no leading v)
# and IMAGE_TAG (Docker rendering) via builder version.sh.
#
# Command-line / environment VERSION= is passed as --version (official X.Y.Z
# only when HEAD exact-matches that tag). Unset or empty VERSION is derived.
#
#   include $(HOME)/.pouch/skills/builder/scripts/version.mk

_builder_scripts_dir := $(dir $(lastword $(MAKEFILE_LIST)))

ifeq ($(BUILDER_VERSION_SH),)
  BUILDER_VERSION_SH := $(wildcard $(_builder_scripts_dir)version.sh)
endif
ifeq ($(BUILDER_VERSION_SH),)
  ifneq ($(BUILDER_SKILL_DIR),)
    BUILDER_VERSION_SH := $(wildcard $(BUILDER_SKILL_DIR)/scripts/version.sh)
  endif
endif
ifeq ($(BUILDER_VERSION_SH),)
  BUILDER_VERSION_SH := $(wildcard $(HOME)/.pouch/skills/builder/scripts/version.sh)
endif
ifeq ($(BUILDER_VERSION_SH),)
  BUILDER_VERSION_SH := $(wildcard $(HOME)/.skills/skills/builder/scripts/version.sh)
endif
ifeq ($(BUILDER_VERSION_SH),)
  $(error version.sh not found; set BUILDER_SKILL_DIR or clone pouch to ~/.pouch)
endif

ifeq ($(filter command line environment,$(origin VERSION)),)
  VERSION := $(shell "$(BUILDER_VERSION_SH)")
else ifeq ($(strip $(VERSION)),)
  VERSION := $(shell "$(BUILDER_VERSION_SH)")
else
  VERSION := $(shell "$(BUILDER_VERSION_SH)" --version "$(VERSION)")
endif
ifeq ($(strip $(VERSION)),)
  $(error version.sh produced an empty version)
endif

ifeq ($(origin IMAGE_TAG),undefined)
  IMAGE_TAG := $(shell "$(BUILDER_VERSION_SH)" --docker --version "$(VERSION)")
endif