Makefile

##############################################################################
# THIS FILE IS GENERATED BY MXMAKE
#
# DOMAINS:
#: core.base
#: core.help
#: core.mxenv
#: core.mxfiles
#: core.packages
#: docs.sphinx
#: qa.ruff
#: qa.test
#: qa.ty
#
# SETTINGS (ALL CHANGES MADE BELOW SETTINGS WILL BE LOST)
##############################################################################

## core.base

# `deploy` target dependencies.
# No default value.
DEPLOY_TARGETS?=

# target to be executed when calling `make run`
# No default value.
RUN_TARGET?=

# Additional files and folders to remove when running clean target
# No default value.
CLEAN_FS?=

# Optional makefile to include before default targets. This can
# be used to provide custom targets or hook up to existing targets.
# Default: include.mk
INCLUDE_MAKEFILE?=include.mk

# Optional additional directories to be added to PATH in format
# `/path/to/dir/:/path/to/other/dir`. Gets inserted first, thus gets searched
# first.
# No default value.
EXTRA_PATH?=

# Path to Python project relative to Makefile (repository root).
# Leave empty if Python project is in the same directory as Makefile.
# For monorepo setups, set to subdirectory name (e.g., `backend`).
# Future-proofed for multi-language monorepos (e.g., PROJECT_PATH_NODEJS).
# No default value.
PROJECT_PATH_PYTHON?=

## core.mxenv

# Primary Python interpreter to use. It is used to create the
# virtual environment if `VENV_ENABLED` and `VENV_CREATE` are set to `true`.
# If global `uv` is used, this value is passed as `--python VALUE` to the venv creation.
# uv then downloads the Python interpreter if it is not available.
# for more on this feature read the [uv python documentation](https://docs.astral.sh/uv/concepts/python-versions/)
# Default: python3
PRIMARY_PYTHON?=3.14

# Minimum required Python version.
# Default: 3.10
PYTHON_MIN_VERSION?=3.10

# Install packages using the given package installer method.
# 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

# 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.
# Default: true
VENV_ENABLED?=true

# Flag whether to create a virtual environment. If set to `false`
# and `VENV_ENABLED` is `true`, `VENV_FOLDER` is expected to point to an
# existing virtual environment.
# Default: true
VENV_CREATE?=true

# The folder of the virtual environment.
# If `VENV_ENABLED` is `true` and `VENV_CREATE` is true it is used as the
# target folder for the virtual environment. If `VENV_ENABLED` is `true` and
# `VENV_CREATE` is false it is expected to point to an existing virtual
# environment. If `VENV_ENABLED` is `false` it is ignored.
# Default: .venv
VENV_FOLDER?=.venv

# mxdev to install in virtual environment.
# Default: mxdev
MXDEV?=mxdev@git+https://github.com/mxstack/mxdev.git

# mxmake to install in virtual environment.
# Default: mxmake
MXMAKE?=-e .

## qa.ruff

# Source folder to scan for Python files to run ruff on.
# Default: src
RUFF_SRC?=src

# Enable ruff check --fix when running ruff-format.
# Set to `true` to enable automatic fixes.
# Default: false
RUFF_FIXES?=false

# Enable unsafe fixes when RUFF_FIXES is enabled.
# Set to `true` to enable unsafe fixes.
# Default: false
RUFF_UNSAFE_FIXES?=false

## qa.isort

# Source folder to scan for Python files to run isort on.
# Default: src
ISORT_SRC?=src

## docs.sphinx

# Documentation source folder.
# Default: docs/source
DOCS_SOURCE_FOLDER?=docs/source

# Documentation generation target folder.
# Default: docs/html
DOCS_TARGET_FOLDER?=docs/html

# Documentation linkcheck output folder.
# Default: docs/linkcheck
DOCS_LINKCHECK_FOLDER?=docs/linkcheck

# Documentation Python requirements to be installed (via pip).
# No default value.
DOCS_REQUIREMENTS?=-e .[docs]

## core.mxfiles

# The config file to use.
# Default: mx.ini
PROJECT_CONFIG?=mx.ini

## core.packages

# Allow prerelease and development versions.
# By default, the package installer only finds stable versions.
# Default: false
PACKAGES_ALLOW_PRERELEASES?=false

## qa.ty

# Source folder for type checking.
# Default: src
TY_SRC?=src

# Target Python version for type checking (e.g., 3.12).
# Leave empty to use default detection.
# No default value.
TY_PYTHON_VERSION?=

## qa.test

# The command which gets executed. Defaults to the location the
# :ref:`run-tests` template gets rendered to if configured.
# Default: .mxmake/files/run-tests.sh
TEST_COMMAND?=.mxmake/files/run-tests.sh

# Additional Python requirements for running tests to be
# installed (via pip).
# Default: pytest
TEST_REQUIREMENTS?=pytest

# Additional make targets the test target depends on.
# No default value.
TEST_DEPENDENCY_TARGETS?=

## core.help

# Request to show all targets, descriptions and arguments for a given domain.
# No default value.
HELP_DOMAIN?=

##############################################################################
# END SETTINGS - DO NOT EDIT BELOW THIS LINE
##############################################################################

INSTALL_TARGETS?=
DIRTY_TARGETS?=
CLEAN_TARGETS?=
PURGE_TARGETS?=
CHECK_TARGETS?=
TYPECHECK_TARGETS?=
FORMAT_TARGETS?=

export PATH:=$(if $(EXTRA_PATH),$(EXTRA_PATH):,)$(PATH)

# Helper variable: adds trailing slash to PROJECT_PATH_PYTHON only if non-empty
PYTHON_PROJECT_PREFIX=$(if $(PROJECT_PATH_PYTHON),$(PROJECT_PATH_PYTHON)/,)

# Defensive settings for make: https://tech.davis-hansson.com/p/make/
SHELL:=bash
.ONESHELL:
# for Makefile debugging purposes add -x to the .SHELLFLAGS
.SHELLFLAGS:=-eu -o pipefail -O inherit_errexit -c
.SILENT:
.DELETE_ON_ERROR:
MAKEFLAGS+=--warn-undefined-variables
MAKEFLAGS+=--no-builtin-rules

# mxmake folder
MXMAKE_FOLDER?=.mxmake

# Sentinel files
SENTINEL_FOLDER?=$(MXMAKE_FOLDER)/sentinels
SENTINEL?=$(SENTINEL_FOLDER)/about.txt
$(SENTINEL): $(firstword $(MAKEFILE_LIST))
	@mkdir -p $(SENTINEL_FOLDER)
	@echo "Sentinels for the Makefile process." > $(SENTINEL)

##############################################################################
# mxenv
##############################################################################

OS?=

# Determine the executable path
ifeq ("$(VENV_ENABLED)", "true")
export VIRTUAL_ENV=$(abspath $(VENV_FOLDER))
ifeq ("$(OS)", "Windows_NT")
VENV_EXECUTABLE_FOLDER=$(VIRTUAL_ENV)/Scripts
else
VENV_EXECUTABLE_FOLDER=$(VIRTUAL_ENV)/bin
endif
export PATH:=$(VENV_EXECUTABLE_FOLDER):$(PATH)
MXENV_PYTHON=python
else
MXENV_PYTHON=$(PRIMARY_PYTHON)
endif

# Determine the package installer with non-interactive flags
ifeq ("$(PYTHON_PACKAGE_INSTALLER)","uv")
PYTHON_PACKAGE_COMMAND=uv pip --no-progress
else
PYTHON_PACKAGE_COMMAND=$(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
# depending on the PYTHON_PACKAGE_INSTALLER and UV_AVAILABLE
# - both vars can be false or
# - one of them can be true,
# - but never boths.
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): $(SENTINEL)
	# Validation: Check Python version if not using global uv
ifneq ("$(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 "Using global uv for Python $(UV_PYTHON)"
endif
	# Validation: Check VENV_FOLDER is set if venv enabled
	@[[ "$(VENV_ENABLED)" == "true" && "$(VENV_FOLDER)" == "" ]] \
		&& echo "VENV_FOLDER must be configured if VENV_ENABLED is true" && exit 1 || :
	# Validation: Check uv not used with system Python
	@[[ "$(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 ("$(USE_GLOBAL_UV)","true")
	@echo "Setup Python Virtual Environment using global uv at '$(VENV_FOLDER)'"
	@uv venv --allow-existing --no-progress -p $(UV_PYTHON) --seed $(VENV_FOLDER)
else
	@echo "Setup Python Virtual Environment using module 'venv' at '$(VENV_FOLDER)'"
	@$(PRIMARY_PYTHON) -m venv $(VENV_FOLDER)
	@$(MXENV_PYTHON) -m ensurepip -U
endif
endif
else
	@echo "Using system Python interpreter"
endif

	# 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)
	@touch $(MXENV_TARGET)

.PHONY: mxenv
mxenv: $(MXENV_TARGET)

.PHONY: mxenv-dirty
mxenv-dirty:
	@rm -f $(MXENV_TARGET)

.PHONY: mxenv-clean
mxenv-clean: mxenv-dirty
ifeq ("$(VENV_ENABLED)", "true")
ifeq ("$(VENV_CREATE)", "true")
	@rm -rf $(VENV_FOLDER)
endif
else
	@$(PYTHON_PACKAGE_COMMAND) uninstall -y $(MXDEV)
	@$(PYTHON_PACKAGE_COMMAND) uninstall -y $(MXMAKE)
endif

INSTALL_TARGETS+=mxenv
DIRTY_TARGETS+=mxenv-dirty
CLEAN_TARGETS+=mxenv-clean

##############################################################################
# ruff
##############################################################################

# Adjust RUFF_SRC to respect PROJECT_PATH_PYTHON if still at default
ifeq ($(RUFF_SRC),src)
RUFF_SRC:=$(PYTHON_PROJECT_PREFIX)src
endif

# Build ruff check flags based on settings
ifeq ("$(RUFF_FIXES)","true")
ifeq ("$(RUFF_UNSAFE_FIXES)","true")
RUFF_FIX_FLAGS=--fix --unsafe-fixes
else
RUFF_FIX_FLAGS=--fix
endif
endif

RUFF_TARGET:=$(SENTINEL_FOLDER)/ruff.sentinel
$(RUFF_TARGET): $(MXENV_TARGET)
	@echo "Install Ruff"
	@$(PYTHON_PACKAGE_COMMAND) install ruff
	@touch $(RUFF_TARGET)

.PHONY: ruff-check
ruff-check: $(RUFF_TARGET)
	@echo "Run ruff check"
	@ruff check $(RUFF_SRC)

.PHONY: ruff-format
ruff-format: $(RUFF_TARGET)
	@echo "Run ruff format"
	@ruff format $(RUFF_SRC)
ifeq ("$(RUFF_FIXES)","true")
	@echo "Run ruff check $(RUFF_FIX_FLAGS)"
	@ruff check $(RUFF_FIX_FLAGS) $(RUFF_SRC)
endif

.PHONY: ruff-dirty
ruff-dirty:
	@rm -f $(RUFF_TARGET)

.PHONY: ruff-clean
ruff-clean: ruff-dirty
	@test -e $(MXENV_PYTHON) && $(MXENV_PYTHON) -m pip uninstall -y ruff || :
	@rm -rf .ruff_cache

INSTALL_TARGETS+=$(RUFF_TARGET)
CHECK_TARGETS+=ruff-check
FORMAT_TARGETS+=ruff-format
DIRTY_TARGETS+=ruff-dirty
CLEAN_TARGETS+=ruff-clean

##############################################################################
# sphinx
##############################################################################

# additional targets required for building docs.
DOCS_TARGETS+=

SPHINX_BIN=sphinx-build
SPHINX_AUTOBUILD_BIN=sphinx-autobuild

DOCS_TARGET:=$(SENTINEL_FOLDER)/sphinx.sentinel
$(DOCS_TARGET): $(MXENV_TARGET)
	@echo "Install Sphinx"
	@$(PYTHON_PACKAGE_COMMAND) install -U sphinx sphinx-autobuild $(DOCS_REQUIREMENTS)
	@touch $(DOCS_TARGET)

.PHONY: docs
docs: $(DOCS_TARGET) $(DOCS_TARGETS)
	@echo "Build sphinx docs"
	@$(SPHINX_BIN) $(DOCS_SOURCE_FOLDER) $(DOCS_TARGET_FOLDER)

.PHONY: docs-live
docs-live: $(DOCS_TARGET) $(DOCS_TARGETS)
	@echo "Rebuild Sphinx documentation on changes, with live-reload in the browser"
	@$(SPHINX_AUTOBUILD_BIN) $(DOCS_SOURCE_FOLDER) $(DOCS_TARGET_FOLDER)

.PHONY: docs-linkcheck
docs-linkcheck: $(DOCS_TARGET) $(DOCS_TARGETS)
	@echo "Run Sphinx linkcheck"
	@$(SPHINX_BIN) -b linkcheck $(DOCS_SOURCE_FOLDER) $(DOCS_LINKCHECK_FOLDER)

.PHONY: docs-dirty
docs-dirty:
	@rm -f $(DOCS_TARGET)

.PHONY: docs-clean
docs-clean: docs-dirty
	@test -e $(MXENV_PYTHON) && $(MXENV_PYTHON) -m pip uninstall -y \
		sphinx sphinx-autobuild $(DOCS_REQUIREMENTS) || :
	@rm -rf $(DOCS_TARGET_FOLDER)

INSTALL_TARGETS+=$(DOCS_TARGET)
DIRTY_TARGETS+=docs-dirty
CLEAN_TARGETS+=docs-clean

##############################################################################
# mxfiles
##############################################################################

# case `core.sources` domain not included
SOURCES_TARGET?=

# File generation target
MXMAKE_FILES?=$(MXMAKE_FOLDER)/files

# set environment variables for mxmake
define set_mxfiles_env
	@export MXMAKE_FILES=$(1)
endef

# unset environment variables for mxmake
define unset_mxfiles_env
	@unset MXMAKE_FILES
endef

$(PROJECT_CONFIG):
ifneq ("$(wildcard $(PROJECT_CONFIG))","")
	@touch $(PROJECT_CONFIG)
else
	@echo "[settings]" > $(PROJECT_CONFIG)
endif

LOCAL_PACKAGE_FILES:=$(wildcard $(PYTHON_PROJECT_PREFIX)pyproject.toml $(PYTHON_PROJECT_PREFIX)setup.cfg $(PYTHON_PROJECT_PREFIX)setup.py $(PYTHON_PROJECT_PREFIX)requirements.txt $(PYTHON_PROJECT_PREFIX)constraints.txt)

FILES_TARGET:=requirements-mxdev.txt
$(FILES_TARGET): $(PROJECT_CONFIG) $(MXENV_TARGET) $(SOURCES_TARGET) $(LOCAL_PACKAGE_FILES)
	@echo "Create project files"
	@mkdir -p $(MXMAKE_FILES)
	$(call set_mxfiles_env,$(MXMAKE_FILES))
	@mxdev -n -c $(PROJECT_CONFIG)
	$(call unset_mxfiles_env)
	@test -e $(MXMAKE_FILES)/pip.conf && cp $(MXMAKE_FILES)/pip.conf $(VENV_FOLDER)/pip.conf || :
	@touch $(FILES_TARGET)

.PHONY: mxfiles
mxfiles: $(FILES_TARGET)

.PHONY: mxfiles-dirty
mxfiles-dirty:
	@touch $(PROJECT_CONFIG)

.PHONY: mxfiles-clean
mxfiles-clean: mxfiles-dirty
	@rm -rf constraints-mxdev.txt requirements-mxdev.txt $(MXMAKE_FILES)

INSTALL_TARGETS+=mxfiles
DIRTY_TARGETS+=mxfiles-dirty
CLEAN_TARGETS+=mxfiles-clean

##############################################################################
# packages
##############################################################################

# additional sources targets which requires package re-install on change
-include $(MXMAKE_FILES)/additional_sources_targets.mk
ADDITIONAL_SOURCES_TARGETS?=

INSTALLED_PACKAGES=$(MXMAKE_FILES)/installed.txt

ifeq ("$(PACKAGES_ALLOW_PRERELEASES)","true")
ifeq ("$(PYTHON_PACKAGE_INSTALLER)","uv")
PACKAGES_PRERELEASES=--prerelease=allow
else
PACKAGES_PRERELEASES=--pre
endif
else
PACKAGES_PRERELEASES=
endif

PACKAGES_TARGET:=$(INSTALLED_PACKAGES)
$(PACKAGES_TARGET): $(FILES_TARGET) $(ADDITIONAL_SOURCES_TARGETS)
	@echo "Install python packages"
	@$(PYTHON_PACKAGE_COMMAND) install $(PACKAGES_PRERELEASES) -r $(FILES_TARGET)
	@$(PYTHON_PACKAGE_COMMAND) freeze > $(INSTALLED_PACKAGES)
	@touch $(PACKAGES_TARGET)

.PHONY: packages
packages: $(PACKAGES_TARGET)

.PHONY: packages-dirty
packages-dirty:
	@rm -f $(PACKAGES_TARGET)

.PHONY: packages-clean
packages-clean:
	@test -e $(FILES_TARGET) \
		&& test -e $(MXENV_PYTHON) \
		&& $(MXENV_PYTHON) -m pip uninstall -y -r $(FILES_TARGET) \
		|| :
	@rm -f $(PACKAGES_TARGET)

INSTALL_TARGETS+=packages
DIRTY_TARGETS+=packages-dirty
CLEAN_TARGETS+=packages-clean

##############################################################################
# ty
##############################################################################

# Adjust TY_SRC to respect PROJECT_PATH_PYTHON if still at default
ifeq ($(TY_SRC),src)
TY_SRC:=$(PYTHON_PROJECT_PREFIX)src
endif

# Build ty flags
TY_FLAGS:=
ifneq ($(TY_PYTHON_VERSION),)
TY_FLAGS+=--python-version $(TY_PYTHON_VERSION)
endif

TY_TARGET:=$(SENTINEL_FOLDER)/ty.sentinel
$(TY_TARGET): $(MXENV_TARGET)
	@echo "Install ty"
	@$(PYTHON_PACKAGE_COMMAND) install ty
	@touch $(TY_TARGET)

.PHONY: ty
ty: $(PACKAGES_TARGET) $(TY_TARGET)
	@echo "Run ty"
	@ty check $(TY_FLAGS) $(TY_SRC)

.PHONY: ty-dirty
ty-dirty:
	@rm -f $(TY_TARGET)

.PHONY: ty-clean
ty-clean: ty-dirty
	@test -e $(MXENV_PYTHON) && $(MXENV_PYTHON) -m pip uninstall -y ty || :
	@rm -rf .ty

INSTALL_TARGETS+=$(TY_TARGET)
CHECK_TARGETS+=ty
TYPECHECK_TARGETS+=ty
CLEAN_TARGETS+=ty-clean
DIRTY_TARGETS+=ty-dirty

##############################################################################
# test
##############################################################################

TEST_TARGET:=$(SENTINEL_FOLDER)/test.sentinel
$(TEST_TARGET): $(MXENV_TARGET)
	@echo "Install $(TEST_REQUIREMENTS)"
	@$(PYTHON_PACKAGE_COMMAND) install $(TEST_REQUIREMENTS)
	@touch $(TEST_TARGET)

.PHONY: test
test: $(FILES_TARGET) $(SOURCES_TARGET) $(PACKAGES_TARGET) $(TEST_TARGET) $(TEST_DEPENDENCY_TARGETS)
	@test -z "$(TEST_COMMAND)" && echo "No test command defined" && exit 1 || :
	@echo "Run tests using $(TEST_COMMAND)"
	@/usr/bin/env bash -c "$(TEST_COMMAND)"

.PHONY: test-dirty
test-dirty:
	@rm -f $(TEST_TARGET)

.PHONY: test-clean
test-clean: test-dirty
	@test -e $(MXENV_PYTHON) && $(MXENV_PYTHON) -m pip uninstall -y $(TEST_REQUIREMENTS) || :
	@rm -rf .pytest_cache

INSTALL_TARGETS+=$(TEST_TARGET)
CLEAN_TARGETS+=test-clean
DIRTY_TARGETS+=test-dirty

##############################################################################
# help
##############################################################################

.PHONY: help
help: $(MXENV_TARGET)
	@mxmake help-generator

##############################################################################
# Custom includes
##############################################################################

-include $(INCLUDE_MAKEFILE)

##############################################################################
# Default targets
##############################################################################

INSTALL_TARGET:=$(SENTINEL_FOLDER)/install.sentinel
$(INSTALL_TARGET): $(INSTALL_TARGETS)
	@touch $(INSTALL_TARGET)

.PHONY: install
install: $(INSTALL_TARGET)
	@touch $(INSTALL_TARGET)

.PHONY: run
run: $(RUN_TARGET)

.PHONY: deploy
deploy: $(DEPLOY_TARGETS)

.PHONY: dirty
dirty: $(DIRTY_TARGETS)
	@rm -f $(INSTALL_TARGET)

.PHONY: clean
clean: dirty $(CLEAN_TARGETS)
	@rm -rf $(CLEAN_TARGETS) $(MXMAKE_FOLDER) $(CLEAN_FS)

.PHONY: purge
purge: clean $(PURGE_TARGETS)

.PHONY: runtime-clean
runtime-clean:
	@echo "Remove runtime artifacts, like byte-code and caches."
	@find . -name '*.py[c|o]' -delete
	@find . -name '*~' -exec rm -f {} +
	@find . -name '__pycache__' -exec rm -fr {} +

.PHONY: check
check: $(CHECK_TARGETS)

.PHONY: typecheck
typecheck: $(TYPECHECK_TARGETS)

.PHONY: format
format: $(FORMAT_TARGETS)