Add support for cutting releases without DPL and using pep517.

.travis.yml

@@ -13,18 +13,13 @@ jobs:
   - stage: deploy
     if: tag IS present
     python: *latest_py3
-    install: skip
-    script: skip
-    deploy:
-      provider: pypi
-      on:
-        tags: true
-        all_branches: true
-      user: jaraco
-      password:
-        secure: ... # encrypt password with `travis encrypt`
-      distributions: dists
-      skip_cleanup: true
+    before_script: skip
+    env:
+    - TWINE_USERNAME=jaraco
+    # TWINE_PASSWORD
+    - secure: ... # encrypt `TWINE_PASSWORD="{password}"` with `travis encrypt`
+    - TOX_TESTENV_PASSENV="TWINE_USERNAME TWINE_PASSWORD"
+    script: tox -e release
 
 cache: pip
 

install-pip-master.py

@@ -0,0 +1,21 @@
+"""
+In order to support installation of pep517 from source,
+pip from master must be installed.
+"""
+
+import subprocess
+import sys
+
+
+def main():
+	cmd = [
+		sys.executable,
+		'-m', 'pip', 'install',
+		'git+https://github.com/pypa/pip',
+	]
+	subprocess.run(cmd)
+	cmd[-1:] = sys.argv[1:]
+	subprocess.run(cmd)
+
+
+__name__ == '__main__' and main()

setup.cfg

@@ -1,6 +1,3 @@
-[aliases]
-dists = clean --all sdist bdist_wheel
-
 [bdist_wheel]
 universal = 1
 

tox.ini

@@ -17,3 +17,18 @@ extras =
 changedir = docs
 commands =
     python -m sphinx . {toxinidir}/build/html
+
+[testenv:release]
+skip_install = True
+# workaround for pep517 build support
+install_command = python install-pip-master.py {opts} {packages}
+deps =
+	# pull from feature branch for feature
+	git+https://github.com/pypa/pep517@feature/build-command
+	# workaround for https://github.com/pypa/twine/issues/423
+	git+https://github.com/pypa/twine
+	path.py
+commands =
+	python -c "import path; path.Path('dist').rmtree_p()"
+	python -m pep517.build .
+	python -m twine upload dist/*