chore(linux): some more replacements of setup.py

The recommended replacement for `setup.py build` is to use the `build`
module, so we have to add this as additional build dependency.

This change also removes the `devdist` target from the makefile - it
isn't referenced in any script, so I think we can do without.

Unfortunately the `python3-build` package available on Ubuntu 22.04 Jammy
is buggy and looks for `/usr/local/bin/python` so we can't use that.
Instead we continue to use `setup.py` for building on Jammy.

linux/debian/control

@@ -25,6 +25,7 @@ Build-Depends:
  perl,
  pkgconf,
  python3-all (>= 3.5),
+ python3-build,
  python3-dbus,
  python3-fonttools,
  python3-gi,
@@ -39,6 +40,7 @@ Build-Depends:
  python3-requests,
  python3-sentry-sdk (>= 1.1),
  python3-setuptools,
+ python3-venv,
  python3-xdg,
  xserver-xephyr,
  xvfb,

linux/keyman-config/Makefile

@@ -15,11 +15,13 @@ clean:
 check:
 	./build.sh test
 
-devdist: version
-	python3 setup.py egg_info -b.`TZ=UTC git log -1 --pretty=format:%cd --date=format-local:%Y%m%d%H%M` sdist
-
 dist: clean version
-	python3 setup.py sdist
+	# TODO: remove this if when we no longer support Ubuntu 22.04 Jammy
+	if dpkg --compare-versions "$(lsb_release -r -s)" lt 24.04; then \
+		python3 setup.py sdist ; \
+	else \
+		python3 -m build --outdir build --sdist ; \
+	fi
 
 deb: dist
 	@VERSION=$(shell echo `basename dist/*.gz .tar.gz|cut -d "-" -f2` > /tmp/keyman_version)

linux/keyman-config/build.sh

@@ -83,7 +83,14 @@ build_action() {
   builder_echo "Building man and help pages"
   build_man_and_help_pages
   builder_echo "Building keyman-config"
-  python3 setup.py build
+  # we use `dpkg --compare-versions` to compare the current Ubuntu version
+  if dpkg --compare-versions "$(lsb_release -r -s)" lt 24.04; then
+    # Ubuntu 22.04 Jammy has a buggy version of python3-build which doesn't work
+    # TODO: remove once we drop support for Ubuntu 22.04 Jammy
+    python3 setup.py build
+  else
+    python3 -m build --outdir build .
+  fi
 }
 
 test_action() {