feat: add release-helm-chart (#10)

Reviewed-on: #10
Co-authored-by: Timo Behrendt <t.behrendt@t00n.de>
Co-committed-by: Timo Behrendt <t.behrendt@t00n.de>

.gitea/workflows/cd.yaml

@@ -10,7 +10,7 @@ jobs:
     name: Release
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
         with:
           fetch-depth: 0
       - name: Increment tag

README.md

@@ -5,3 +5,4 @@ Collection of Gitea friendly actions.
 ## Actions
 
 - [release-git-tag](./release-git-tag//README.md)
+- [release-helm-chart](./release-helm-chart/README.md)

release-helm-chart/README.md

@@ -0,0 +1,23 @@
+# release-helm-chart
+
+Packages and releases a Helm chart to a Gitea Helm registry.
+
+## Inputs
+
+| Input               | Description                   | Required |
+| ------------------- | ----------------------------- | -------- |
+| `tag`               | The version tag to release    | Yes      |
+| `name`              | The name of the Helm chart    | Yes      |
+| `registry-user`     | The username for the registry | Yes      |
+| `registry-password` | The password for the registry | Yes      |
+
+## Example
+
+```yaml
+- uses: ./release-helm-chart
+  with:
+    tag: v1.2.3
+    name: my-chart
+    registry-user: myuser
+    registry-password: ${{ secrets.REGISTRY_PASSWORD }}
+```

release-helm-chart/action.yaml

@@ -0,0 +1,30 @@
+name: Release Helm chart
+description: Release the Helm chart
+
+inputs:
+  tag:
+    description: The tag to release
+    required: true
+  name:
+    description: The name of the Helm chart
+    required: true
+  registry-user:
+    description: The username for the registry
+    required: true
+  registry-password:
+    description: The password for the registry
+    required: true
+
+runs:
+  using: "composite"
+  steps:
+    - shell: bash
+      run: |
+        helm package ${{ inputs.name }} --version ${{ inputs.tag }}
+    - shell: bash
+      run: |
+        curl --verbose --fail --show-error \
+          --user ${{ inputs.registry-user }}:${{ inputs.registry-password }} \
+          -X POST \
+          --upload-file ./${{ inputs.name }}-${{ inputs.tag }}.tgz \
+          https://gitea.t000-n.de/api/packages/${{ inputs.registry-user }}/helm/api/charts