spring run command removed in 3.x, convert app.groovy to standalone groovy script

Author: codeconsole

README.md

@@ -15,5 +15,5 @@ To run Spring Boot Script App
 ```shell
  cd sample-apps/gsp/script
  sdk env
- spring run app.groovy
+ groovy -Dgroovy.grape.report.downloads=true app.groovy
 ```

grails-gsp-spring-boot/src/main/java/grails/gsp/boot/GspAutoConfiguration.java

@@ -113,11 +113,12 @@ protected static class GspTemplateEngineAutoConfiguration extends AbstractGspCon
 
         @Bean
         @ConditionalOnMissingBean(name="groovyPagesTemplateEngine") 
-        GroovyPagesTemplateEngine groovyPagesTemplateEngine(TagLibraryResolver tagLibraryResolver, TagLibraryLookup tagLibraryLookup) {
+        GroovyPagesTemplateEngine groovyPagesTemplateEngine(TagLibraryResolver tagLibraryResolver, TagLibraryLookup tagLibraryLookup, GroovyPagesTemplateRenderer groovyPagesTemplateRenderer) {
             GroovyPagesTemplateEngine templateEngine = new GroovyPagesTemplateEngine();
             templateEngine.setReloadEnabled(gspReloadingEnabled);
             templateEngine.setJspTagLibraryResolver(tagLibraryResolver);
             templateEngine.setTagLibraryLookup(tagLibraryLookup);
+            groovyPagesTemplateRenderer.setGroovyPagesTemplateEngine(templateEngine);
             return templateEngine;
         }
 

sample-apps/gsp/script/.sdkmanrc

@@ -1,3 +1,3 @@
 java=17.0.12-librca
-groovy=4.0.24
+groovy=4.0.23
 springboot=3.3.5

sample-apps/gsp/script/README.md

@@ -1,5 +1,6 @@
-Use the following command with Spring Boot CLI 2.x
+Use the following command with Groovy CLI 4.x
 
 ```shell
-spring run app.groovy
+sdk env
+groovy -Dgroovy.grape.report.downloads=true app.groovy
 ```

sample-apps/gsp/script/app.groovy

@@ -1,5 +1,18 @@
+package demo
+
 @GrabResolver(name='grails-repo', root='https://repo.grails.org/grails/core/')
 @Grab("org.grails:grails-gsp-spring-boot:7.0.0-SNAPSHOT")
+@Grab("org.grails:grails-plugin-controllers:7.0.0-SNAPSHOT")
+// if you need to clear snapshots, they are saved to ~/.groovy/grapes
+
+import org.springframework.boot.autoconfigure.SpringBootApplication
+import org.springframework.boot.SpringApplication
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RestController
+import org.springframework.stereotype.Component
+import org.springframework.context.annotation.Bean
+import grails.gsp.boot.GspAutoConfiguration
+import org.springframework.boot.autoconfigure.ImportAutoConfiguration
 
 import grails.gsp.TagLib
 import org.springframework.web.servlet.ModelAndView
@@ -10,7 +23,7 @@ class GspController {
     @RequestMapping("/")
     ModelAndView home() {
         new ModelAndView('index', 'name', 'world')
-    }    
+    }
 }
 
 @Component
@@ -19,4 +32,15 @@ class FormatTagLib {
 	def dateFormat = { attrs, body ->
 		out << new SimpleDateFormat(attrs.format).format(attrs.date)
 	}
-}
+}
+
+@SpringBootApplication
+@ImportAutoConfiguration(GspAutoConfiguration.class)
+class Application {
+    @Bean GspController rspController() { new GspController() }
+    @Bean FormatTagLib formatTagLib() { new FormatTagLib() }
+}
+
+System.setProperty("org.springframework.boot.logging.LoggingSystem", "none")
+
+SpringApplication.run(Application)

sample-apps/gsp/script/application.properties

@@ -1,4 +1,3 @@
 spring.gsp.templateRoots=classpath:/templates
 spring.main.allow-circular-references=true
-grails.views.gsp.sitemesh.preprocess=false
 sitemesh.decorator.default=main