chore: move from setuptools to hatch_build

packages are built with hatch instead of setuptools.
Translations catalogs are compiled at package build time, and before unit tests are
ran. Thus there is no need to keep them versioned in git anymore.

.gitignore

@@ -1,5 +1,6 @@
 *.pyc
 *.egg-info
+*.mo
 dist
 .venv
 docs/_build/

Makefile

@@ -36,7 +36,7 @@ remove-install-stamp:
 update: remove-install-stamp install ## Update the dependencies
 
 .PHONY: serve
-serve: install ## Run the ihatemoney server
+serve: install build-translations ## Run the ihatemoney server
 	@echo 'Running ihatemoney on http://localhost:5000'
 	FLASK_DEBUG=1 FLASK_APP=ihatemoney.wsgi $(VENV)/bin/flask run --host=0.0.0.0
 
@@ -74,8 +74,8 @@ compress-assets: compress-showcase ## Compress static assets
 build-translations: ## Build the translations
 	$(VENV)/bin/pybabel compile -d ihatemoney/translations
 
-.PHONY: update-translations
-update-translations: ## Extract new translations from source code
+.PHONY: extract-translations
+extract-translations: ## Extract new translations from source code
 	$(VENV)/bin/pybabel extract --add-comments "I18N:" --strip-comments --omit-header --no-location --mapping-file ihatemoney/babel.cfg -o ihatemoney/messages.pot ihatemoney
 	$(VENV)/bin/pybabel update -i ihatemoney/messages.pot -d ihatemoney/translations/
 

docs/contributing.md

@@ -274,10 +274,9 @@ In order to issue a new release, follow the following steps:
 
         make compress-assets
 
--   Build the translations:
+-   Extract the translations:
 
-        make update-translations
-        make build-translations
+        make extract-translations
 
 -   If you're not completely sure of yourself at this point, you can
     optionally: create a new branch, push it, open a pull request, check

hatch_build.py

@@ -0,0 +1,14 @@
+from pathlib import Path
+
+from hatchling.builders.hooks.plugin.interface import BuildHookInterface
+
+
+class CustomBuildHook(BuildHookInterface):
+    def initialize(self, version, build_data):
+        from babel.messages.frontend import compile_catalog
+
+        cmd = compile_catalog()
+        cmd.directory = Path(__file__).parent / "ihatemoney" / "translations"
+        cmd.statistics = True
+        cmd.finalize_options()
+        cmd.run()

ihatemoney/tests/conftest.py

@@ -1,12 +1,23 @@
+from pathlib import Path
 from unittest.mock import MagicMock
 
+from babel.messages.frontend import compile_catalog
 from flask import Flask
 import pytest
 
 from ihatemoney.currency_convertor import CurrencyConverter
 from ihatemoney.run import create_app, db
 
 
+@pytest.fixture(autouse=True, scope="session")
+def babel_catalogs():
+    cmd = compile_catalog()
+    cmd.directory = Path(__file__).parent.parent / "translations"
+    cmd.quiet = True
+    cmd.finalize_options()
+    cmd.run()
+
+
 @pytest.fixture
 def app(request: pytest.FixtureRequest):
     """Create the Flask app with database"""

pyproject.toml

@@ -1,6 +1,6 @@
 [build-system]
-requires = ["setuptools", "setuptools-scm"]
-build-backend = "setuptools.build_meta"
+requires = ["hatchling"]
+build-backend = "hatchling.build"
 
 [project]
 name = "ihatemoney"
@@ -84,5 +84,10 @@ doc = [
 [project.scripts]
 ihatemoney = "ihatemoney.manage:cli"
 
-[tool.setuptools]
-packages = ["ihatemoney"]
+[tool.hatch.build.hooks.custom]
+dependencies = [
+    "Babel>=2.6.0"
+]
+
+[tool.hatch.build]
+artifacts = ["ihatemoney/translations/**/*.mo"]