update versioning to use SETUPTOOLS_SCM_PRETEND_VERSION in meta.yaml and workflow

Author: dwr-psandhu

.github/workflows/python-package-conda.yml

@@ -26,9 +26,9 @@ jobs:
       run: |
         conda create -n test_vtools3 -y conda-build conda-verify numpy anaconda-client setuptools-scm
         source $CONDA/etc/profile.d/conda.sh
-        GIT_DESCRIBE_TAG=$(git describe --tags --abbrev=0)
         conda activate test_vtools3
         conda config --set anaconda_upload yes
+        export SETUPTOOLS_SCM_PRETEND_VERSION=$(python -m setuptools_scm)
         conda build -c cadwr-dms -c conda-forge --user cadwr-dms --token "$ANACONDA_CHANNEL_UPLOAD_TOKEN" conda.recipe
         conda activate
         conda remove -n test_vtools3 --all

conda.recipe/meta.yaml

@@ -5,7 +5,7 @@
 
 package:
   name: vtools3
-  version: {{ GIT_DESCRIBE_TAG }}
+  version: {{ SETUPTOOLS_SCM_PRETEND_VERSION }}
 
 source:
   path: ..
@@ -16,7 +16,7 @@ build:
   # "skip: True  # [py<35]" (for example) to limit to Python 3.5 and newer, or
   # "skip: True  # [not win]" to limit to Windows.
   script_env:
-   - SETUPTOOLS_SCM_PRETEND_VERSION={{ GIT_DESCRIBE_TAG }}
+   - SETUPTOOLS_SCM_PRETEND_VERSION
   script: {{ PYTHON }} -m pip install --no-build-isolation --no-deps --ignore-installed -vv .
   noarch: python
   number: 0