railpack

1package java2 3import (4	"fmt"5 6	"github.com/railwayapp/railpack/core/generate"7	"github.com/railwayapp/railpack/core/plan"8)9 10type JavaProvider struct{}11 12func (p *JavaProvider) Name() string {13	return "java"14}15 16func (p *JavaProvider) Detect(ctx *generate.GenerateContext) (bool, error) {17	return ctx.App.HasMatch("pom.{xml,atom,clj,groovy,rb,scala,yaml,yml}") || ctx.App.HasMatch("gradlew"), nil18}19 20func (p *JavaProvider) Initialize(ctx *generate.GenerateContext) error {21	return nil22}23 24func (p *JavaProvider) CleansePlan(buildPlan *plan.BuildPlan) {}25 26func (p *JavaProvider) StartCommandHelp() string {27	return ""28}29 30func (p *JavaProvider) Plan(ctx *generate.GenerateContext) error {31	build := ctx.NewCommandStep("build")32	build.AddInput(plan.NewStepLayer(ctx.GetMiseStepBuilder().Name()))33	build.AddInput(plan.NewLocalLayer())34 35	if p.usesGradle(ctx) {36		ctx.Logger.LogInfo("Using Gradle")37 38		p.setGradleVersion(ctx)39		p.setJDKVersion(ctx, ctx.GetMiseStepBuilder())40 41		if ctx.App.HasMatch("gradlew") && !ctx.App.IsFileExecutable("gradlew") {42			build.AddCommand(plan.NewExecCommand("chmod +x gradlew"))43		}44 45		build.AddCommand(plan.NewExecCommand("./gradlew clean build -x check -x test -Pproduction"))46		build.AddCache(p.gradleCache(ctx))47	} else {48		ctx.Logger.LogInfo("Using Maven")49 50		ctx.GetMiseStepBuilder().Default("maven", "latest")51		p.setJDKVersion(ctx, ctx.GetMiseStepBuilder())52 53		if ctx.App.HasMatch("mvnw") && !ctx.App.IsFileExecutable("mvnw") {54			build.AddCommand(plan.NewExecCommand("chmod +x mvnw"))55		}56 57		build.AddCommand(plan.NewExecCommand(fmt.Sprintf("%s -DoutputFile=target/mvn-dependency-list.log -B -DskipTests clean dependency:list install -Pproduction", p.getMavenExe(ctx))))58		build.AddCache(p.mavenCache(ctx))59	}60 61	runtimeMiseStep := ctx.NewMiseStepBuilder("packages:mise:runtime")62	p.setJDKVersion(ctx, runtimeMiseStep)63 64	outPath := "target/."65	if ctx.App.HasMatch("**/build/libs/*.jar") || p.usesGradle(ctx) {66		outPath = "."67	}68 69	ctx.Deploy.AddInputs([]plan.Layer{70		runtimeMiseStep.GetLayer(),71		plan.NewStepLayer(build.Name(), plan.Filter{72			Include: []string{outPath},73		}),74	})75 76	ctx.Deploy.StartCmd = p.getStartCmd(ctx)77 78	p.addMetadata(ctx)79 80	return nil81}82 83func (p *JavaProvider) getStartCmd(ctx *generate.GenerateContext) string {84	if p.usesGradle(ctx) {85		buildGradle := p.readBuildGradle(ctx)86		return fmt.Sprintf("java $JAVA_OPTS -jar %s $(ls -1 */build/libs/*jar | grep -v plain)", getGradlePortConfig(buildGradle))87	} else if ctx.App.HasMatch("pom.xml") {88		return fmt.Sprintf("java %s $JAVA_OPTS -jar target/*jar", getMavenPortConfig(ctx))89	} else {90		return "java $JAVA_OPTS -jar target/*jar"91	}92 93}94 95func (p *JavaProvider) addMetadata(ctx *generate.GenerateContext) {96	hasGradle := p.usesGradle(ctx)97 98	if hasGradle {99		ctx.Metadata.Set("javaPackageManager", "gradle")100	} else {101		ctx.Metadata.Set("javaPackageManager", "maven")102	}103 104	var framework string105	if p.usesSpringBoot(ctx) {106		framework = "spring-boot"107	}108 109	ctx.Metadata.Set("javaFramework", framework)110}111 112func (p *JavaProvider) usesSpringBoot(ctx *generate.GenerateContext) bool {113	return ctx.App.HasMatch("**/spring-boot*.jar") ||114		ctx.App.HasMatch("**/spring-boot*.class") ||115		ctx.App.HasMatch("**/org/springframework/boot/**")116}117