update makefile with autodetect uv

Author: jensens

Makefile

@@ -54,18 +54,19 @@ PRIMARY_PYTHON?=3.14
 PYTHON_MIN_VERSION?=3.10
 
 # Install packages using the given package installer method.
-# Supported are `pip` and `uv`. If uv is used, its global availability is
-# checked. Otherwise, it is installed, either in the virtual environment or
-# using the `PRIMARY_PYTHON`, dependent on the `VENV_ENABLED` setting. If
-# `VENV_ENABLED` and uv is selected, uv is used to create the virtual
-# environment.
+# Supported are `pip` and `uv`. When `uv` is selected, a global installation
+# is auto-detected and used if available. Otherwise, uv is installed in the
+# virtual environment or using `PRIMARY_PYTHON`, depending on the
+# `VENV_ENABLED` setting.
 # Default: pip
 PYTHON_PACKAGE_INSTALLER?=uv
 
-# Flag whether to use a global installed 'uv' or install
-# it in the virtual environment.
-# Default: false
-MXENV_UV_GLOBAL?=true
+# Python version for UV to install/use when creating virtual
+# environments with global UV. Passed to `uv venv -p VALUE`. Supports version
+# specs like `3.11`, `3.14`, `cpython@3.14`. Defaults to PRIMARY_PYTHON value
+# for backward compatibility.
+# Default: $(PRIMARY_PYTHON)
+UV_PYTHON?=$(PRIMARY_PYTHON)
 
 # Flag whether to use virtual environment. If `false`, the
 # interpreter according to `PRIMARY_PYTHON` found in `PATH` is used.
@@ -199,30 +200,57 @@ else
 MXENV_PYTHON=$(PRIMARY_PYTHON)
 endif
 
-# Determine the package installer
+# Determine the package installer with non-interactive flags
 ifeq ("$(PYTHON_PACKAGE_INSTALLER)","uv")
-PYTHON_PACKAGE_COMMAND=uv pip
+PYTHON_PACKAGE_COMMAND=uv pip --quiet --no-progress
 else
 PYTHON_PACKAGE_COMMAND=$(MXENV_PYTHON) -m pip
 endif
 
+# Auto-detect global uv availability (simple existence check)
+ifeq ("$(PYTHON_PACKAGE_INSTALLER)","uv")
+UV_AVAILABLE:=$(shell command -v uv >/dev/null 2>&1 && echo "true" || echo "false")
+else
+UV_AVAILABLE:=false
+endif
+
+# Determine installation strategy
+USE_GLOBAL_UV:=$(shell [[ "$(PYTHON_PACKAGE_INSTALLER)" == "uv" && "$(UV_AVAILABLE)" == "true" ]] && echo "true" || echo "false")
+USE_LOCAL_UV:=$(shell [[ "$(PYTHON_PACKAGE_INSTALLER)" == "uv" && "$(UV_AVAILABLE)" == "false" ]] && echo "true" || echo "false")
+
+# Check if global UV is outdated (non-blocking warning)
+ifeq ("$(USE_GLOBAL_UV)","true")
+UV_OUTDATED:=$(shell uv self update --dry-run 2>&1 | grep -q "Would update" && echo "true" || echo "false")
+else
+UV_OUTDATED:=false
+endif
+
 MXENV_TARGET:=$(SENTINEL_FOLDER)/mxenv.sentinel
 $(MXENV_TARGET): $(SENTINEL)
-ifneq ("$(PYTHON_PACKAGE_INSTALLER)$(MXENV_UV_GLOBAL)","uvfalse")
+	# Validation: Check Python version if not using global uv
+ifneq ("$(USE_GLOBAL_UV)","true")
 	@$(PRIMARY_PYTHON) -c "import sys; vi = sys.version_info; sys.exit(1 if (int(vi[0]), int(vi[1])) >= tuple(map(int, '$(PYTHON_MIN_VERSION)'.split('.'))) else 0)" \
 		&& echo "Need Python >= $(PYTHON_MIN_VERSION)" && exit 1 || :
 else
-	@echo "Use Python $(PYTHON_MIN_VERSION) over uv"
+	@echo "Using global uv for Python $(UV_PYTHON)"
 endif
+	# Validation: Check VENV_FOLDER is set if venv enabled
 	@[[ "$(VENV_ENABLED)" == "true" && "$(VENV_FOLDER)" == "" ]] \
 		&& echo "VENV_FOLDER must be configured if VENV_ENABLED is true" && exit 1 || :
-	@[[ "$(VENV_ENABLED)$(PYTHON_PACKAGE_INSTALLER)" == "falseuv" ]] \
+	# Validation: Check uv not used with system Python
+	@[[ "$(VENV_ENABLED)" == "false" && "$(PYTHON_PACKAGE_INSTALLER)" == "uv" ]] \
 		&& echo "Package installer uv does not work with a global Python interpreter." && exit 1 || :
+	# Warning: Notify if global UV is outdated
+ifeq ("$(UV_OUTDATED)","true")
+	@echo "WARNING: A newer version of uv is available. Run 'uv self update' to upgrade."
+endif
+
+	# Create virtual environment
 ifeq ("$(VENV_ENABLED)", "true")
 ifeq ("$(VENV_CREATE)", "true")
-ifeq ("$(PYTHON_PACKAGE_INSTALLER)$(MXENV_UV_GLOBAL)","uvtrue")
-	@echo "Setup Python Virtual Environment using package 'uv' at '$(VENV_FOLDER)'"
-	@uv venv -p $(PRIMARY_PYTHON) --seed $(VENV_FOLDER)
+ifeq ("$(USE_GLOBAL_UV)","true")
+	@echo "Setup Python Virtual Environment using global uv at '$(VENV_FOLDER)'"
+	@uv venv --quiet --no-progress -p $(UV_PYTHON) --seed $(VENV_FOLDER)
 else
 	@echo "Setup Python Virtual Environment using module 'venv' at '$(VENV_FOLDER)'"
 	@$(PRIMARY_PYTHON) -m venv $(VENV_FOLDER)
@@ -232,10 +260,14 @@ endif
 else
 	@echo "Using system Python interpreter"
 endif
-ifeq ("$(PYTHON_PACKAGE_INSTALLER)$(MXENV_UV_GLOBAL)","uvfalse")
-	@echo "Install uv"
+
+	# Install uv locally if needed
+ifeq ("$(USE_LOCAL_UV)","true")
+	@echo "Install uv in virtual environment"
 	@$(MXENV_PYTHON) -m pip install uv
 endif
+
+	# Install/upgrade core packages
 	@$(PYTHON_PACKAGE_COMMAND) install -U pip setuptools wheel
 	@echo "Install/Update MXStack Python packages"
 	@$(PYTHON_PACKAGE_COMMAND) install -U $(MXDEV) $(MXMAKE)