Publish release builds to Gitea packages

.gitea/workflows/build.yml

@@ -8,9 +8,15 @@ on:
       - "v*"
   pull_request:
   workflow_dispatch:
+    inputs:
+      publish_version:
+        description: Version to publish to the Gitea package registry
+        required: false
+        type: string
 
 permissions:
   contents: read
+  packages: write
 
 jobs:
   build:
@@ -38,14 +44,23 @@ jobs:
           BUILD_REF: ${{ github.ref }}
           BUILD_REF_NAME: ${{ github.ref_name }}
           BUILD_SHA: ${{ github.sha }}
+          PUBLISH_VERSION: ${{ inputs.publish_version }}
         run: |
           set -euo pipefail
 
           package_version="snapshot-${BUILD_SHA:0:8}"
           version_flags=""
           if [[ "$BUILD_REF" == refs/tags/v* ]]; then
-            package_version="${BUILD_REF_NAME//\//-}"
-            version_flags="-X main.version=$BUILD_REF_NAME"
+            package_version="$BUILD_REF_NAME"
+          elif [[ -n "$PUBLISH_VERSION" ]]; then
+            package_version="$PUBLISH_VERSION"
+          fi
+          if [[ "$package_version" != snapshot-* ]]; then
+            if [[ ! "$package_version" =~ ^v[0-9]+\.[0-9]+\.[0-9]+([.-][0-9A-Za-z.-]+)?$ ]]; then
+              echo "Invalid release version: $package_version" >&2
+              exit 1
+            fi
+            version_flags="-X main.version=$package_version"
           fi
 
           mkdir -p dist
@@ -84,3 +99,33 @@ jobs:
             dist/SHA256SUMS
           if-no-files-found: error
           retention-days: 30
+
+      - name: Publish Gitea package
+        if: startsWith(github.ref, 'refs/tags/v') || inputs.publish_version != ''
+        shell: bash
+        env:
+          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+          GITEA_SERVER_URL: ${{ github.server_url }}
+          GITEA_OWNER: ${{ github.repository_owner }}
+          GITEA_REPOSITORY: ${{ github.repository }}
+          BUILD_REF_NAME: ${{ github.ref_name }}
+          PUBLISH_VERSION: ${{ inputs.publish_version }}
+        run: |
+          set -euo pipefail
+
+          package_version="${PUBLISH_VERSION:-$BUILD_REF_NAME}"
+          repository_name="${GITEA_REPOSITORY#*/}"
+          package_url="$GITEA_SERVER_URL/api/packages/$GITEA_OWNER/generic/bdrclone/$package_version"
+
+          for package_file in dist/*.tar.gz dist/SHA256SUMS; do
+            curl --fail-with-body --silent --show-error \
+              --request PUT \
+              --header "Authorization: token $GITEA_TOKEN" \
+              --upload-file "$package_file" \
+              "$package_url/$(basename "$package_file")"
+          done
+
+          curl --fail-with-body --silent --show-error \
+            --request POST \
+            --header "Authorization: token $GITEA_TOKEN" \
+            "$GITEA_SERVER_URL/api/v1/packages/$GITEA_OWNER/generic/bdrclone/-/link/$repository_name"