Fix readme and separate workflows

.github/workflows/ci.yml

@@ -1,4 +1,4 @@
-name: main
+name: ci
 
 on:
   workflow_dispatch:
@@ -11,30 +11,14 @@ on:
     types: [opened, synchronize]
 
 jobs:
-  main:
+  ci:
     runs-on: ubuntu-latest
-    permissions:
-      packages: write
-      contents: read
     steps:
-      - uses: actions/checkout@v1
-      - name: Set up JDK 1.8
-        uses: actions/setup-java@v1
+      - uses: actions/checkout@v4
+      - uses: actions/setup-java@v4
         with:
-          java-version: 1.8
-      - name: lint
-        run: ./gradlew spotlessCheck
-      - name: print version
-        run: ./gradlew printVersion
-      - name: Build Gem & Put it into './build/gems/' Directory
-        run: ./gradlew gem
-      - name: Set up JRuby
-        uses: ruby/setup-ruby@v1
-        with:
-          ruby-version: jruby
-      - name: push gem
-        uses: trocco-io/push-gem-to-gpr-action@v1
-        with:
-          language: java
-          gem-path: "./build/gems/*.gem"
-          github-token: "${{ secrets.GITHUB_TOKEN }}"
+          distribution: temurin
+          java-version: 8
+      - run: ./gradlew check
+      - run: ./gradlew spotlessCheck
+      - run: ./gradlew test

.github/workflows/push-gem.yml

@@ -0,0 +1,27 @@
+name: Ruby Gem
+
+on:
+  workflow_dispatch:
+  push:
+    tags:
+      - "*"
+
+jobs:
+  build:
+    name: Build + Publish
+    runs-on: ubuntu-latest
+    permissions:
+      packages: write
+      contents: read
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Ruby 2.7
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 2.7
+      - name: push gem
+        uses: trocco-io/push-gem-to-gpr-action@v2
+        with:
+          language: java
+          gem-path: "./build/gems/*.gem"
+          github-token: "${{ secrets.GITHUB_TOKEN }}"

README.md

@@ -7,7 +7,7 @@ This plugin uses Apache POI.
 
 * **Plugin type**: parser
 * **Guess supported**: no
-* Embulk 0.10 or later
+* Embulk 0.9 or earlier
 
 
 ## Example