build/use-setuptools-scm-for-versioning (#52)

* convert to pyproject

* update tests

* update pyproject

* working build

* update test run line

* rename build main

* fix typo

* update lint

* build/use-setuptools-scm-for-versioning

* clarify comment

* delete bumpversion config

* lint

* another comment

.github/workflows/build-main.yml

@@ -4,6 +4,8 @@ on:
   push:
     branches:
       - main
+    tags:
+      - "v*"
   pull_request:
     branches:
       - main
@@ -78,7 +80,7 @@ jobs:
       run: pre-commit run --all-files
 
   publish:
-    if: "contains(github.event.head_commit.message, 'Bump version')"
+    if: "success() && startsWith(github.ref, 'refs/tags/')"
     needs: [check-manifest, test, lint]
     runs-on: ubuntu-latest
 
@@ -90,6 +92,7 @@ jobs:
         python-version: 3.9
     - name: Install Dependencies
       run: |
+        git tag
         python -m pip install --upgrade pip
         pip install build wheel
     - name: Build Package

CONTRIBUTING.md

@@ -64,13 +64,17 @@ Ready to contribute? Here's how to set up `napari-aicsimageio` for local develop
 ## Deploying
 
 A reminder for the maintainers on how to deploy.
-Make sure all your changes are committed.
-Then run:
+Make sure the main branch is checked out and all desired changes
+are merged. Then run:
 
 ```bash
-$ bumpversion patch # possible: major / minor / patch
-$ git push
-$ git push --tags
+$ git tag -a "vX.Y.Z" -m "vX.Y.Z"
+$ git push upstream --follow-tags
 ```
 
-This will release a new package version on Git + GitHub and publish to PyPI.
+(The `-a` flag indicates an [annotated tag](https://git-scm.com/book/en/v2/Git-Basics-Tagging))
+
+The presence of a tag starting with "v" will trigger the `publish` step in the
+main github workflow, which will build the package and upload it to PyPI. The
+version will be injected into the package metadata by
+[`setuptools-scm`](https://github.com/pypa/setuptools_scm)

napari_aicsimageio/__init__.py

@@ -1,12 +1,15 @@
 # -*- coding: utf-8 -*-
-
 """Top-level package for napari-aicsimageio."""
 
+from importlib.metadata import PackageNotFoundError, version
+
+try:
+    __version__ = version("napari-aicsimageio")
+except PackageNotFoundError:
+    __version__ = "uninstalled"
+
 __author__ = "Eva Maxfield Brown"
 __email__ = "[email protected]"
-# Do not edit this string manually, always use bumpversion
-# Details in CONTRIBUTING.md
-__version__ = "0.7.1"
 
 
 def get_module_version() -> str:

pyproject.toml

@@ -1,14 +1,13 @@
 # https://peps.python.org/pep-0517/
 [build-system]
-requires = ["setuptools>=45", "wheel"]
+requires = ["setuptools>=45", "wheel", "setuptools_scm[toml]>=6.2"]
 build-backend = "setuptools.build_meta"
 
+[tool.setuptools_scm]
+
 # https://peps.python.org/pep-0621/
 [project]
 name = "napari-aicsimageio"
-# Do not edit this string manually, always use bumpversion
-# Details in CONTRIBUTING.rst
-version = "0.7.1"
 description = "AICSImageIO bindings for napari"
 keywords = [
   "aicsimageio",
@@ -44,7 +43,7 @@ classifiers = [
   "Topic :: Scientific/Engineering :: Visualization",
   "Topic :: Scientific/Engineering",
 ]
-dynamic = []
+dynamic = ["version"]
 dependencies = [
   "aicsimageio[all]>=4.6.3",
   "fsspec[http]",            # no version pin, we pull from aicsimageio
@@ -76,7 +75,6 @@ test = [
 ]
 dev = [
   "black>=19.10b0",
-  "bump2version>=1.0.1",
   "coverage>=5.1",
   "docutils>=0.10,<0.16",
   "flake8-debugger>=3.2.1",
@@ -119,7 +117,6 @@ use_parentheses = true
 # https://github.com/mgedmin/check-manifest#configuration
 [tool.check-manifest]
 ignore = [
-  ".bumpversion.cfg",
   ".editorconfig",
   ".napari/**/*",
   ".pre-commit-config.yaml",