improve release setup based on the one in GitPython

Author: Byron

.gitignore

@@ -9,3 +9,4 @@ MANIFEST
 *.egg-info
 .noseids
 *.sublime-workspace
+/env/

Makefile

@@ -1,49 +1,12 @@
-.PHONY: build sdist cover test clean-files clean-docs doc all 
+.PHONY: all clean release force_release
 
 all:
-$(info Possible targets:)
-$(info doc)
-$(info clean-docs)
-$(info clean-files)
-$(info clean)
-$(info test)
-$(info coverage)
-$(info build)
-$(info sdist)
+@grep -Ee '^[a-z].*:' Makefile | cut -d: -f1 | grep -vF all
 
-doc:
-cd doc && make html
+clean:
+rm -rf build/ dist/ .eggs/ .tox/
 
-clean-docs:
-cd doc && make clean
-
-clean-files:
-git clean -fx
-rm -rf build/ dist/
-
-clean: clean-files clean-docs
-
-test:
-pytest
-
-coverage:
-pytest --cov smmap --cov-report xml
-
-build:
-./setup.py build
-
-sdist:
-./setup.py sdist
-
-release: clean
-# Check if latest tag is the current head we're releasing
-echo "Latest tag = $$(git tag | sort -nr | head -n1)"
-echo "HEAD SHA = $$(git rev-parse head)"
-echo "Latest tag SHA = $$(git tag | sort -nr | head -n1 | xargs git rev-parse)"
-@test "$$(git rev-parse head)" = "$$(git tag | sort -nr | head -n1 | xargs git rev-parse)"
-make force_release
-
-force_release:: clean
-git push --tags
-python3 setup.py sdist bdist_wheel
+force_release: clean
+./build-release.sh
 twine upload dist/*
+git push --tags origin main

build-release.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+#
+# This script builds a release. If run in a venv, it auto-installs its tools.
+# You may want to run "make release" instead of running this script directly.
+
+set -eEu
+
+function release_with() {
+ $1 -m build --sdist --wheel
+}
+
+if test -n "${VIRTUAL_ENV:-}"; then
+ deps=(build twine) # Install twine along with build, as we need it later.
+ echo "Virtual environment detected. Adding packages: ${deps[*]}"
+ pip install --quiet --upgrade "${deps[@]}"
+ echo 'Starting the build.'
+ release_with python
+else
+ function suggest_venv() {
+ venv_cmd='python -m venv env && source env/bin/activate'
+ printf "HELP: To avoid this error, use a virtual-env with '%s' instead.\n" "$venv_cmd"
+ }
+ trap suggest_venv ERR # This keeps the original exit (error) code.
+ echo 'Starting the build.'
+ release_with python3 # Outside a venv, use python3.
+fi