CI: add testpypi.yml

Dev releases would be published to
https://test.pypi.org/project/ceph-nvmeof/
on every merge to "devel" branch.

Package will override if the version already exists.
For example, if "1.2.15" already exists on test.pypi
and the new commit also has same version (in pyproject.toml),
then that package would be overwritten (by using a bigger
build number).

Signed-off-by: Vallari Agrawal <[email protected]>

.github/workflows/testpypi.yml

@@ -0,0 +1,40 @@
+# Publish python package at https://test.pypi.org/p/ceph-nvmeof
+# This is for dev releases, and will be pushed to test pypi on all merges to "devel" branch.
+# Usage: `pip install --index-url https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple ceph-nvmeof==1.2.15`
+name: Upload release to Test PyPI
+on:
+  push:
+    tags:
+      - '*'
+    branches:
+      - 'devel'
+
+jobs:
+  pypi-publish:
+    name: Upload release to Test PyPI
+    runs-on: ubuntu-latest
+    environment:
+      name: testpypi
+      url: https://test.pypi.org/p/ceph-nvmeof
+    permissions:
+      id-token: write
+    steps:
+      - uses: actions/checkout@v3
+      - uses: pdm-project/setup-pdm@v3
+        with:
+          python-version: 3.9
+          version: "2.7.4"
+      - name: Sync Dependencies 
+        run: pdm sync -v --no-isolation --no-self --no-editable
+      - name: Compile Protocol Buffers
+        run: pdm run protoc
+      - name: Set current date as env variable
+        run: echo "NOW=$(date +'%Y%m%d%H%M%S')" >> $GITHUB_ENV
+      # - name: [debug] Set dev version number    # Helpful to debug during CI fails
+      #   run: |
+      #     NEW_VERSION="$(pdm show --version).dev$NOW"
+      #     sed -i "s/^version = \".*\"/version = \"${NEW_VERSION}\"/" pyproject.toml
+      - name: Build package
+        run: pdm build --config-setting="--build-number=$NOW" --no-sdist
+      - name: Publish package distributions to Test PyPI
+        run: pdm publish --no-build -r testpypi