Update Makefile and requirements.txt for build and clean ui files

Makefile

@@ -1,38 +1,91 @@
-SHELL := bash
+SHELL        := bash
+MAKEFLAGS     = --no-print-directory --no-builtin-rules
+.DEFAULT_GOAL = all
 
+# Variables
+PACKAGE = revpicommander
+
+# If virtualenv exists, use it. If not, use PATH to find
+SYSTEM_PYTHON  = $(or $(shell which python3), $(shell which python))
+PYTHON         = $(or $(wildcard venv/bin/python), $(SYSTEM_PYTHON))
+SYSTEM_PYUIC5  = $(shell which pyuic5)
+PYUIC5         = $(or $(wildcard venv/bin/pyuic5), $(SYSTEM_PYUIC5))
+SYSTEM_PYRCC5  = $(shell which pyrcc5)
+PYRCC5         = $(or $(wildcard venv/bin/pyrcc5), $(SYSTEM_PYRCC5))
+SYSTEM_PYLUP5  = $(shell which pylupdate5)
+PYLUP5         = $(or $(wildcard venv/bin/pylupdate5), $(SYSTEM_PYLUP5))
+
+all: build_ui build_rc build
+
+.PHONY: all
+
+## Compile Qt UI files to python code
 build_ui:
 	cd ui_dev && for ui_file in *.ui; do \
 		file_name=$${ui_file%.ui}; \
-		pyuic5 $${ui_file} -o ../src/revpicommander/ui/$${file_name}_ui.py -x --from-imports; \
+		$(PYUIC5) $${ui_file} -o ../src/$(PACKAGE)/ui/$${file_name}_ui.py -x --from-imports; \
 		echo $${file_name}; \
 	done
+
+build_rc:
 	cd ui_dev && for rc_file in *.qrc; do \
 		file_name=$${rc_file%.qrc}; \
-		pyrcc5 $${rc_file} -o ../src/revpicommander/ui/$${file_name}_rc.py; \
+		$(PYRCC5) $${rc_file} -o ../src/$(PACKAGE)/ui/$${file_name}_rc.py; \
 		echo $${file_name}; \
 	done
 
 update_translation:
-	pylupdate5 translate.pro
+	$(PYLUP5) translate.pro
 
-installer_mac:
-	pyinstaller -n "RevPi Commander" \
-		--add-data="src/revpicommander/locale:locale" \
-		--add-data="data/revpicommander.icns:." \
-		--icon=data/revpicommander.icns \
+.PHONY: build_ui build_rc update_translation
+
+## Environment
+venv:
+	rm -rf venv
+	$(SYSTEM_PYTHON) -m venv venv
+
+deps:
+	$(PYTHON) -m pip install --upgrade pip -r requirements.txt
+
+.PHONY: venv deps
+
+## Build, install
+build:
+	$(PYTHON) -m setup sdist
+	$(PYTHON) -m setup bdist_wheel
+
+install:
+	$(PYTHON) -m pip install dist/$(PACKAGE)-*.whl
+
+.PHONY: build install
+
+## PyInstaller
+installer_mac: all
+	$(PYTHON) -m PyInstaller -n "RevPi Commander" \
+		--add-data="src/$(PACKAGE)/locale:locale" \
+		--add-data="data/$(PACKAGE).icns:." \
+		--icon=data/$(PACKAGE).icns \
 		--noconfirm \
 		--clean \
 		--onedir \
 		--windowed \
-		src/revpicommander/__main__.py
+		src/$(PACKAGE)/__main__.py
 
-installer_win:
-	pyinstaller -n "RevPi Commander" \
-		--add-data="src\\revpicommander\\locale;.\\locale" \
-		--add-data="data\\revpicommander.ico;." \
-		--icon=data\\revpicommander.ico \
+installer_win: all
+	$(PYTHON) -m PyInstaller -n "RevPi Commander" \
+		--add-data="src\\$(PACKAGE)\\locale;.\\locale" \
+		--add-data="data\\$(PACKAGE).ico;." \
+		--icon=data\\$(PACKAGE).ico \
 		--noconfirm \
 		--clean \
 		--onedir \
 		--windowed \
-        src/revpicommander\__main__.py
+        src/$(PACKAGE)\__main__.py
+
+.PHONY: installer_mac installer_win
+
+## Clean
+clean:
+	rm -rf build dist src/*.egg-info src/$(PACKAGE)/ui/[^__]*.py *.spec
+
+.PHONY: clean