Resolve #250 and a slight bonus trim to source tarball size

- This resolves #250, removing the despicable `versioneer` from the code
- As a free bonus: it also removes built docs from the source distribution

MANIFEST.in

@@ -3,6 +3,7 @@
 
 graft src/pds_doi_service
 graft docs
+prune docs/build
 graft features
 graft inputs
 graft tests

setup.cfg

@@ -1,5 +1,6 @@
 [metadata]
 name = pds-doi-service
+version = file: src/pds_doi_service/VERSION.txt
 author = PDS
 author_email = [email protected]
 description = Digital Object Identifier service for the Planetary Data System
@@ -65,7 +66,9 @@ test_suite = pds_doi_service.test.suite
 
 [options.extras_require]
 dev =
+    build
     black
+    wheel
     flake8
     flake8-bugbear
     flake8-docstrings
@@ -88,7 +91,6 @@ dev =
     allure-behave==2.8.13
     behave-testrail-reporter==0.4.0
     pygit2==1.6.1
-    versioneer
     lxml-stubs
     pandas-stubs
     types-flask
@@ -132,7 +134,7 @@ pds.doi_service =
 
 
 [coverage:run]
-omit = */_version.py,*/__init__.py
+# No patterns to omit at this time
 
 
 [test]
@@ -144,7 +146,7 @@ addopts = -n auto --cov=pds
 
 [flake8]
 max-line-length = 120
-extend-exclude = versioneer.py,_version.py,docs,tests,setup.py
+extend-exclude = docs,tests,setup.py
 docstring_convention = google
 
 # Ignoring:
@@ -183,15 +185,4 @@ extend-ignore = E203, E501, W503
 select = D,E,F,N,W,B,B902,B903,B950
 
 [mypy]
-
-[mypy-pds_doi_service._version]
-# We don't care about issues in versioneer's files
-ignore_errors = True
-
-[versioneer]
-VCS                = git
-style              = pep440
-tag_prefix         = v
-versionfile_source = src/pds_doi_service/_version.py
-versionfile_build  = pds_doi_service/_version.py
-parentdir_prefix   = pds.pds_doi_service-
+# No patterns to ignore at this time

setup.py

@@ -1,9 +1,6 @@
 # encoding: utf-8
 
 import setuptools
-import versioneer
 
-setuptools.setup(
-    version=versioneer.get_version(),
-    cmdclass=versioneer.get_cmdclass(),
-)
+
+setuptools.setup()

src/pds_doi_service/VERSION.txt

@@ -0,0 +1 @@
+2.0.2

src/pds_doi_service/__init__.py

@@ -1,7 +1,5 @@
 # encoding: utf-8
 """Planetary Data System's Digital Object Identifier service"""
-from ._version import get_versions
+import pkg_resources
 
-__version__ = get_versions()["version"]
-__date__ = get_versions()["date"]
-del get_versions
+__version__ = VERSION = pkg_resources.resource_string(__name__, "VERSION.txt").decode("utf-8").strip()