feat: update

skills/builder/scripts/version.mk

@@ -0,0 +1,39 @@
+# 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)/.skills/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 $(HOME)/.skills/skills/builder/scripts/version.sh)
+endif
+ifeq ($(BUILDER_VERSION_SH),)
+  $(error version.sh not found; set BUILDER_SKILL_DIR or clone skills to ~/.skills)
+endif
+
+ifeq ($(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