Set charm refresh compatibility version from git tag

Author: carlcsaposs-canonical

.github/workflows/release.yaml

@@ -13,8 +13,18 @@ on:
       - '.github/workflows/sync_docs.yaml'
 
 jobs:
+  tag:
+    name: Create charm refresh compatibility version git tag
+    uses: canonical/data-platform-workflows/.github/workflows/[email protected]
+    with:
+      track: 'dpe'
+    permissions:
+      contents: write  # Needed to create git tag
+
   ci-tests:
     name: Tests
+    needs:
+      - tag
     uses: ./.github/workflows/ci.yaml
     secrets: inherit
     permissions:
@@ -23,10 +33,11 @@ jobs:
   release:
     name: Release charm
     needs:
+      - tag
       - ci-tests
     uses: canonical/data-platform-workflows/.github/workflows/[email protected]
     with:
-      track: 'dpe'
+      track: ${{ needs.tag.outputs.track }}
       artifact-prefix: ${{ needs.ci-tests.outputs.artifact-prefix }}
     secrets:
       charmhub-token: ${{ secrets.CHARMHUB_TOKEN }}

charmcraft.yaml

@@ -83,10 +83,18 @@ parts:
   files:
     plugin: dump
     source: .
+    after:
+      - poetry-deps  # Ensure poetry is installed
     build-packages:
       - git
     override-build: |
-      # TODO: set charm version in refresh_versions.toml
+      # Set `charm_version` in refresh_versions.toml from git tag
+      # Create venv in `..` so that git working tree is not dirty
+      python3 -m venv ../refresh-version-venv
+      source ../refresh-version-venv/bin/activate
+      poetry install --only build-refresh-version
+      write-charm-version
+
       craftctl default
     stage:
       - LICENSE

poetry.lock

@@ -56,6 +56,12 @@ tenacity = "^9.0.0"
 ops = "^2.9.0"
 allure-pytest-default-results = "^0.1.2"
 
+[tool.poetry.group.build-refresh-version]
+optional = true
+
+[tool.poetry.group.build-refresh-version.dependencies]
+charm-refresh-build-version = "^0.2.0"
+
 [tool.coverage.run]
 branch = true
 

pyproject.toml

@@ -1,8 +1,6 @@
 charm_major = 1
 workload = "8.0.41"
 
-charm = "8.0/1.0.0" # TODO remove
-
 [snap]
 name = "charmed-mysql"