chore: fix check-kubebuilder-release.yml (#24)

.github/workflows/check-kubebuilder-release.yml

@@ -12,18 +12,18 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          latest_version=$(curl --silent "https://api.github.com/repos/kubernetes-sigs/kubebuilder/releases" | jq -r '. | sort_by(.published_at) | reverse | .[] | select(.tag_name | test("^v[0-9]+.[0-9]+.0$") ) | .tag_name' | head -1)
-          current_version=$(grep kubebuilder README.md | sed 's/.*\(v[0-9]\+.[0-9]\+.[0-9]\+\).*/\1/')
-          current_minor_version=$(grep kubebuilder README.md | sed 's/.*\(v[0-9]\+.[0-9]\+\).*/\1/')
-          latest_minor_version=$(echo ${latest_version} | sed 's/.*\(v[0-9]\+.[0-9]\+\).*/\1/')
-          echo "current: $current_version, latest: $latest_version"
+          latest_version="$(curl --silent "https://api.github.com/repos/kubernetes-sigs/kubebuilder/releases" | jq -r '. | sort_by(.published_at) | reverse | .[] | select(.tag_name | test("^v[0-9]+.[0-9]+.0$") ) | .tag_name' | head -1)"
+          latest_minor_version="${latest_version%.*}"
+          current_version="$(grep '\[kubebuilder\]' README.md | sed 's/.*\(v[0-9]\+.[0-9]\+.[0-9]\+\).*/\1/')"
+          current_minor_version="${current_version%.*}"
+          echo "current: $current_version ($current_minor_version), latest: $latest_version ($latest_minor_version)"
           if [ "$current_minor_version" = "$latest_minor_version" ]; then
             echo "latest minor version"
           else
             echo "new version exists"
             title="Upgrade kubebuilder to $latest_version"
-            issue_cnt=$(gh issue list --search "$title" --json 'id' | jq length)
-            if [ $issue_cnt -gt 0 ];then
+            issue_cnt="$(gh issue list --search "$title" --json 'id' | jq length)"
+            if [ "$issue_cnt" -gt 0 ];then
               echo "issue already exists"
             else
               gh issue create --title "$title" --body "kubebuilder [$latest_version](https://github.com/kubernetes-sigs/kubebuilder/releases/$latest_version) has been released." --assignee nakamasato