fix: improve version retrieval logic in publish workflow

Author: nakasyou

.github/workflows/publish.yml

@@ -73,28 +73,28 @@ jobs:
             exit 1
           fi
 
-          # Derive current version from latest tag for this package
-          # If no tags exist, fall back to package.json version
-          # Note: Uses git's version sorting which correctly handles semver including prereleases
-          latest_tag=$(git tag -l "$package@*" --sort=-version:refname | head -n1)
-          
-          if [ -n "$latest_tag" ]; then
-            # Extract version from tag (format: package@version)
-            current_version="${latest_tag#$package@}"
-            echo "Found latest tag: $latest_tag (version: $current_version)"
-          else
-            # No tags exist, use package.json version as starting point
-            package_json_path="packages/$package/package.json"
-            if [ ! -r "$package_json_path" ]; then
-              echo "package.json not found or not readable: $package_json_path"
-              exit 1
-            fi
+          # Derive current version from npm registry (fallback to package.json if unpublished)
+          package_json_path="packages/$package/package.json"
+          if [ ! -r "$package_json_path" ]; then
+            echo "package.json not found or not readable: $package_json_path"
+            exit 1
+          fi
+
+          package_name="$(node -e "const fs=require('fs');const pkg=JSON.parse(fs.readFileSync(process.argv[1],'utf8'));process.stdout.write(typeof pkg.name==='string'?pkg.name.trim():'')" "$package_json_path")"
+          if [ -z "$package_name" ]; then
+            echo "package.json does not contain a valid name field: $package_json_path"
+            exit 1
+          fi
+
+          if ! current_version="$(npm view "$package_name" version 2>/dev/null | tr -d '\r\n')"; then
             current_version="$(node -e "const fs=require('fs');const pkg=JSON.parse(fs.readFileSync(process.argv[1],'utf8'));process.stdout.write(typeof pkg.version==='string'?pkg.version.trim():'')" "$package_json_path")"
             if [ -z "$current_version" ]; then
-              echo "package.json does not contain a valid version field: $package_json_path"
+              echo "Could not fetch npm version and package.json does not contain a valid version field: $package_json_path"
               exit 1
             fi
-            echo "No existing tags found, using package.json version: $current_version"
+            echo "Could not fetch version from npm for $package_name, using package.json version: $current_version"
+          else
+            echo "Using npm registry version for $package_name: $current_version"
           fi
 
           if ! [[ "$current_version" =~ ^([0-9]+)\.([0-9]+)\.([0-9]+)([.-][0-9A-Za-z.-]+)?(\+[0-9A-Za-z.-]+)?$ ]]; then
@@ -231,6 +231,7 @@ jobs:
           fi
 
           git commit -m 'chore(release): bump ${{ steps.metadata.outputs.package }} to v${{ steps.metadata.outputs.version }}'
+          git pull --rebase origin "${{ github.ref_name }}"
           git push origin "HEAD:${{ github.ref_name }}"
           echo "sha=$(git rev-parse HEAD)" >> "$GITHUB_OUTPUT"