use less setup.py, use pip and build

todo: clean clean2 build_usage build_man

.github/workflows/ci.yml

@@ -122,8 +122,7 @@ jobs:
         # so, set it here, again.
         PKG_CONFIG_PATH: "/usr/local/opt/openssl@1.1/lib/pkgconfig:$PKG_CONFIG_PATH"
       run: |
-        # pip install -e .
+        pip install -e .
-        python setup.py -v develop
     - name: run pytest via tox
       env:
         # we already have that in the global env, but something is broken and overwrites that.

Vagrantfile

@@ -193,8 +193,7 @@ def install_borg(fuse)
     pip install -U wheel  # upgrade wheel, might be too old
     cd borg
     pip install -r requirements.d/development.lock.txt
-    python setup.py clean
+    python setup.py clean clean2
-    python setup.py clean2
     pip install -e .[#{fuse}]
   EOF
 end

requirements.d/development.lock.txt

@@ -2,6 +2,7 @@ setuptools==69.0.3
 setuptools-scm==8.0.4
 pip==23.3.2
 virtualenv==20.25.0
+build==1.0.3
 pkgconfig==1.5.5
 tox==4.11.4
 pytest==7.4.3

requirements.d/development.txt

@@ -2,6 +2,7 @@ setuptools>=64
 setuptools_scm>=8
 pip
 virtualenv
+build
 pkgconfig
 tox
 pytest

scripts/sdist-sign

@@ -13,7 +13,7 @@ else
     GPG=qubes-gpg-client-wrapper
 fi
 
-python setup.py sdist
+python -m build
 
 D=dist/borgbackup-$R.tar.gz