Eligibility:

• Gradle scalacompile. artifacts. But a tool named sbt was the first build tool that was specifically created for Scala, and these days it’s supported by Lightbend, the company that was co-founded by Scala creator Martin Odersky that also maintains Akka, the Play web framework, and more. ├── build. conf in the root directory of your project and enter the configuration for the rules you want to have enabled. @get: Classpath. Due to some firewall rules which can not be changed in the environment, all outbound traffic for resolving dependencies is disabled. X, when i upgrade the lib to 2. The configuration uses the HOCON syntax search in API. Feb 27, 2018 · I would like to use Gradle for a multi-module Scala project. plugin. 5. Plugin development, dependency management, Groovy incremental compilation. The current gradle project provides a fat-jar with all compile dependecies. collect but api is not accessible Sep 13, 2019 · Describe the bug Gradle build scripts that have both Scala and Java sources fail to build. One of many performance optimizations that make Gradle Build Tool fast and scalable is compilation avoidance. Phases of the compiler to log. gradle/hydra private static String getDefaultSourcepath(Project project, ScalaCompile scalaCompile) { // The source sets are configured in the JavaPlugin and ScalaPlugin and they use the JavaPluginConvention to store the source sets. I can't figure out how to use the genjavadoc-plugin for the Scala compiler. jar for each of my libraries. He is a computer scientist and professor of programming methods at École Polytechnique Fédérale de Lausanne (EPFL) in Switzerland. gradle 8. Community Plugins Sep 7, 2013 · When you get this error: Cannot infer Scala class path because no Scala library Jar was found on class path: configuration ':compile' This indicates that you need to tell gradle which version of Scala you're interested in, so that it can download it. Most Scala developers use it constantly without noticing. tasks. 2,225 artifacts. You can try ‘tasks. By default, there are two source sets: that of compile and that of test. May 6, 2017 · Issue: gradle#1956 Provides an implementation for ScalaCompile and ScalaDoc that makes them cacheable. 4 Looking at scan output we see that org. Provide details and share your research! But avoid …. 6. Mar 21, 2016 · If i deleted the project gradle cache, i could get one more module to compile correctly. dependencies Options for running the Scala compiler in a separate process. Next you can choose the DSL for writing buildscripts - 1 : Groovy or 2: Kotlin . I’ll have to second @sterling’s request for your properties, settings, or environment. gradle publishToMavenLocal - which goes from cross building, artifact creation (as above) and then publishing to local maven. 3, respectively. The former go inside ‘buildscript’, the latter go outside. Zinc reduces compilation times without sacrificing correctness. g. List files to be compiled. TaskExecutionException : Execution failed for task &#39 Ranking. 12 and the version of Java used to start the build. 1 for our scala project, and the compile time on our CI increased 6 times (from ~3 minutes to ~18 minutes). So best try for yourself and see if it fits your requirements. $gradle makeJar Error : org. Jun 26, 2018 The purpose here is to bookmark this post which shows how to pass flags to the scalac compiler when using the Scala Jan 19, 2019 · Scala Compiler Plugins with Gradle The Scala compiler like just about every other modern programming language compiler has a plugin/extensibility story. 11, and the latest 2. 8’ as a target either. scala / ScalaCompile / getScalaCompileOptions. 3'. Unfortunately, after a recent refactor it is no longer able to compile it. By default, Gradle uses the same Java toolchain for running Gradle itself and building JVM projects. 1. . The plugin is used by big companies on big projects, and can be configured to use the same incremental Scala compiler as sbt. alisiikh. com. scalaVersion = scala_version. Legal values: none, verbose, debug. Hence: buildscript {. search in API. How do I specify the classpath attribute? I’ve tried a bunch of things but nothing works for me. I’ve observed also the problem, that I could manually compile java first with Gradle. open var scalaCompilerPlugins: FileCollection. compileClasspath) // The returned class path can be used to configure the 'scalaClasspath' property of tasks. Ideally I want to generate a . api Jun 17, 2015 · Hi, I am facing one issue with gradle while building scala code. Description. Incremental Groovy compilation. Specifies the amount of logging. e. jar to the classpath Jan 13, 2017 · Oddly, I cannot reproduce this issue given your reproduction steps. 0 since version 5. It's leveraged by build tools such as sbt, IntelliJ, Maven, Gradle, Mill, Pants, Bazel , and Bloop. Some options just generate more compiler output in the form of diagnostics or warnings, while others change the result of compilation. 9. The directory to generate the . srcDirs = [] If you want to keep Java and Scala sources in separate directories and want all code to be joint compiled, this is the correct solution. This includes arguments to define system properties, the minimum/maximum heap size, and the bootstrap classpath. For the other questions, press enter to Apr 24, 2014 · Java and Scala can be combined in the scala sources to have them compiled jointly, e. May 2, 2013 · You have to make a difference between the dependencies of the build and the dependencies of your code. compilationOutputs. Mar 22, 2016 · Gradle初探（二）：build. Nov 16, 2022 · 3. gradle: dependencies { compile 'org. useAnt = false} In gradle 1. modularity. api. Please let us know so we can dig into this issue further. Jan 16, 2020 · Hi, we’ve just done an upgrade from Java 8 and Gradle 5. The Scala command scala, which runs scripts or compiled code, accepts the same options as the Mar 18, 2014 · Using. 和Maven类似，而artifactId在gradle则是项目的name，值保存在 Jul 25, 2014 · Thanks for the response. However, this may only sometimes be desirable. Play framework. We are upgrading with binaries compatible with JDK8 by adding release Gradle will support version 0. origin: gradle. 0 license. 1. dsl. Vulnerabilities. gradle crossBuildAssemble - which builds ans assembles all cross build into respective artifacts. The code is simple and looks as follows (packages ommitted): String getName(); override def getName: String = name. main {. This is added by the ScalaBasePlugin. Gradle can automate a wide range of software build scenarios using either its built-in functionality, third-party plugins, or custom build logic. Interface ScalaPluginExtension. Property. Clearly the general purpose instance is the winner. This is the task class of my plugin: class MyTask extends DefaultTask { @TaskAction def doIt() { def Mar 8, 2019 · As mentioned before, the Scala compiler being single-threaded does not lead to any surprises: the most cost-effective instances are the 2-core ones, with performance roughly equal between all classes. collect to configurations. executable. classpath group: 'yourOrganization', name: 'yourArtifact', version: 'yourVersion'. Apparently, the Scala Ant task doesn’t yet support ‘jvm-1. gradle looks like this: Jun 26, 2018 · Scala compiler options with Gradle. scalastyle". Direct vulnerabilities: CVE-2017-15288. compile. toggle menu. 打开build. options. but when I start compileScala all java classes are getting deleted. The plugin supports joint compilation Compile Scala faster with multicore compilation, seamless integration, and compile-time monitoring to catch bottlenecks and inefficiencies. To fix this, add the following to build. 7' to your gradle build file and then refresh, the project will build normally. Jun 5, 2018 · Is there build in mechanism which support cross scala version build in gradle. Note that this way you cannot have Java 8 source in your code, this is a temporary hack until Gradleware or JetBrains solve the issue. Bloop will skip config file generation for those projects that are not either Java or Scala. 2. Since: 6. Sep 16, 2014 · . Community Forums. 2 and Gradle 3. useAnt = false }’, but I Jul 28, 2020 · In my last blog, I talked about how to use Gradle to create a simple Java Spark application. Develocity has extended its support to the Scala/sbt community with the release of sbt for Develocity and another cutting-edge technology to Feb 5, 2021 · Could not find method scalaCompilerPlugin() for arguments [org. CSS 0. open var scalaCompilerPlugins: FileCollection . scala Compiler Plugins. Inheritors Plugins are added in “gradle/build. For that you need to create a file named . Gradle's Scala support is documented in the "Scala plugin" chapter in the Gradle User Guide. Unfortunately, I can't easily upgrade gradle's sc When running the Scala compile task, Gradle will always add a parameter to configure the Java target for the Scala compiler that is derived from the Gradle configuration: When using toolchains, the -release option, or target for older Scala versions, is selected, with a version matching the Java language level of the toolchain configured. Asking for help, clarification, or responding to other answers. By default, Gradle does not use the build cache. destinationDirectory. ScalaStyle doesn't support the detection of unused May 6, 2020 · I have a scala project which uses the old compile dependency configuration. withType(ScalaCompile) {scalaCompileOptions. Jul 24, 2014 · I’m new to gradle, and trying to get a basic script working with scala. 2 through 0. HTML 0. The compilation options. classpath 'com. Building projects with different Java versions on different developer machines and CI servers may lead to unexpected issues. Add the appropriate annotation to each of those properties. scala. repositories {. 5%. From mobile apps to microservices, from small startups to big enterprises, it helps teams deliver better software, faster. The release of sbt support for the Develocity Build Scan® service is an important step in that direction. scalastyle {. Generate deprecation information. The compiler executable to be used. get Scala Compile Options Dec 26, 2018 · 2. To Reproduce Add a simple Scala class to project Add a simple Java class to project, which depends on the Apr 5, 2016 · Running Gradle build shows warnings and i dont know how to change the scala compiler so that it is not ant based. 5. Aug 25, 2023 · An In-depth Look at Gradle's Approach to Faster Compilation. The Groovy plugin extends the Java plugin to add support for Groovy projects. The full set of arguments to use to launch the JVM for the compiler process. 7 Enable the build cache. scala-lang:scala-compiler:2. So you can compile your Scala sources, package classes into jar, publish it locally and specify your local dependency in. 1 to Java 11 and Gradle 6. 604 secs. Code of conduct. Zinc is the incremental compiler for Scala. AbstractOptions. 4 and Java 11 to see if Java 11 might be the culprit, but everything is ok with 5. Shell 0. The set of include patterns. After struggling for hours, I have no ideas left on how to resolve this. Gradle avoids recompiling as much as possible by determining if the result of compilation would be identical, even if upstream dependencies have changed. gradle. By default, Gradle uses Play 2. srcDirs = ['src/main/scala', 'src/main/java'] java {. scala-lang:scala-library:2. Nov 12, 2021 · I have a gradle project where I have a set of dependencies added in the build. , core Java and Scala APIs). scala {. You can add sourceCompatibility = '1. Gradle is the most popular build system for the JVM and is the default system for Android and Kotlin Multi-Platform projects. Fail the build on compilation errors. jar were simple, but the javadocs are a little harder. Oct 15, 2013 · I’m writing a plugin that needs to compile scala classes that are in a non-default location. For example some dependencies should be used for compiling source code whereas others only need to be available at runtime. . All Methods Instance Methods Concrete Methods ; Modifier and Type Method Description; protected void: assertScalaClasspathIsNonEmpty (): protected org. It universally accepted that sbt is the Jul 16, 2016 · I’m using gradle to compile scala sources and would like the scala compiler messages to be forwarded to stdout. define. Gradle represents the scope of a dependency with the help of a Configuration. javaHome. gradle is simply: apply plugin: 'scala' sourceSets { main { scala { srcDir 'src' } } } It fails with this charming little error: * Exception is: org. Gradle Kotlin DSL Reference Declaring inputs and outputs via annotations. If you want to use . with {. Here are my build scans for Gradle 3. gradle / org. The directory to generate the API documentation into. Kotlin extension function for org. Incubating. It can deal with Groovy code, mixed Groovy and Java code, and even pure Java code (although we don’t necessarily recommend to use it for the latter). The . Scala Compile Options The gradle command bloopInstall exports your gradle build to bloop. classpath. You can run sbt ~compile to keep the compiler up and running while you edit your code, so you can follow up errors in your code straight away. gradle-scala-multiversion-plugin - Gradle plugin to build a project against multiple versions of Scala scala Compiler Plugins. apply plugin: "com. source. If you’re implementing a custom task as a class, then it takes just two steps to make it work with incremental build: Create typed properties (via getter methods) for each of your task inputs and outputs. Every dependency declared for a Gradle project applies to a specific scope. scala / ScalaCompileOptions / ScalaCompileOptions. Regardless of which Zinc version is used, Zinc will always use the Scala compiler found on the scalaTools configuration. tasks / BaseScalaCompileOptions / BaseScalaCompileOptions. Used By. It has a rich community plugin ecosystem. allJvmArgs. some of the underlying libraries don’t support Java 8 yet). You can use several different tools to build your Scala projects, including Ant, Maven, Gradle, and more. Configures the java compiler to be used to compile the Java source. While these keywords may seem similar, they have different implications and usage, and it’s important to understand the differences between them in order to use them effectively. lang. gradle常用配置（java和web项目）. I tried running with a --info and got the following: Output. The problem. Hydra supports Gradle Build Tool, Maven, and sbt. cd src/main/scala. The module path handling of this compile task. group和version分别为项目的所在组和版本信息。. // such as 'ScalaCompile' or 'ScalaDoc', or to execute these and other Scala tools directly. Here we do the same thing with Scala. Currently this is possible only by running gradle with –info option Starting process 'Gradle Compiler Daemon 1'. jar, and -javadocs. It is reasonably easy (if repetitive) to configure the Scala compiler and add needed ScalaJS dependencies by hand; what really pushed me to make this plugin is the difficulty and ugliness involved in manually setting up ScalaJS linking in a Gradle script. It's definitely possible. 2] on object of type org. Jun 9, 2017 · Execution failed for task ':compileScala'. #230 in MvnRepository ( See Top Artifacts) #2 in Scala Compilers. Play supported versions. triplequote. Oct 23, 2015 · Well, in any step before compiling or packaging ;) That is, first step or before sbt assembly / sbt package. ScalaCompile Nov 11, 2014 · The issue SI-5333 describes exactly this behavior, where the scala compiler fails in mixed mode to recognize constantness of final static fields declared in java classes. class files into. An abstract Scala compile task sharing common functionality for compiling scala. rholder:gradle-one-jar:1. Contribute to scala/scala3 development by creating an account on GitHub. github. build the project. The task is in the snippet below. Via config file: This is the recommended approach if you want to repeatedly run Scalafix as part of your build and day-to-day development. apply plugin: "scala". The following versions of Play and Scala are supported: Table 1. 25, Scala 2. scala The build. Scalastyle - to examine scala code and report potential problems based on rules defined by you. BUILD FAILED. When prompted, select the 2: library project type and 4: Scala as implementation language. Gradle Kotlin DSL Reference toggle menu. I can’t figure out how to specify a source set. You can also tamper with the IDEA project XML that is generated when running gradle idea. inferScalaClasspath(configurations. When you later run that same task with the same input, Gradle retrieves the output from the build cache instead of running the task again. Run with --info or --debug option to get more log output. When I run the jar file however I get and error: 'Exception in thread "main" java. For the purpose of repeatable builds, we’d like to guarantee that we compile against the same libraries as part of the build process, and this should extend to include the core platform libraries (i. gradle └── src └── Main. 8". Then we tried switching to Gradle 5. javaLauncher. The Scala 3 compiler, also known as Dotty. Jun 12, 2017 · I just started working on a Scala project using Gradle as the build tool and I'm struggling to cause builds to warn when there are unused imports. dependencies {. mkdir -p src/test/scala. 2 cannot be used. Total time: 4. The compilation outputs produced by the sources that are generating Scaladoc. I tried to move those to api but without success. /gradlew run then you have to wait for Gradle to support Scala3. 0 of Zinc and above, although due to a regression in the Zinc library, versions 0. 12. scalafix. As the title says, I have configured the scala library as a compile-time dependency, however “gradle compileScala” fails saying that it cannot infer the scala class path because “no Scala library Jar was found”. Oct 23, 2015 · I didnt find a good way to compile scala in Linux so I tried following commands, mkdir runnablescala. – 0__. 13,it get a error, but it dos not figur out what code was wrong, to figure out the error, i suggess gradle dos n Gradle plugin enables a simple configuration of Scapegoat Scala static code analysis tool. A Play application can select a different version by configuring the plugin extension. Note: There is a new version for this artifact. The set of exclude patterns. Apache-2. Link copied to clipboard. and then call methods from your Scala code in build. Develocity support for sbt brings the leading Developer Productivity Engineering (DPE) solution platform to the sbt and Scala communities. In Maven and SBT you can use the Legal values: - false (only compile modified files) - true (always recompile all files) Options for running the Scala compiler in a separate process. The source for this task, after the include and exclude patterns have been applied. 10. Whether to force the compilation of all files. language. 3. * Try: Run with --stacktrace option to get the stack trace. mavenCentral() } dependencies {. the plugin implementation is written in Scala, thus we need the Gradle Scala Plugin; in order to use the plugin from other projects, the Gradle Maven Plugin is used; this adds the install task used for saving the project jar to the Maven Local Repository; compile gradleApi() adds the gradle-api-<gradle_version>. 1' Jun 7, 2023 · Gradle provides two main keywords, compile and implementation, for configuring dependencies in software projects. The build cache is a Gradle optimization that stores task outputs for specific input. Bloop gives you an option to try out Scala3 while Gradle doesn't support it and you can continue to use it to develop on afterwards while still using Gradle to define your build and do dependency resolution & deployment etc. mkdir -p src/test/resources. I’m aware of: GitHub ADTRAN/gradle-scala-multiversion-plugin. Options for incremental compilation of Scala code. Anyone know how to stop these warnings? useAnt has been deprecated and is schedul Oct 20, 2013 · I’d like to execute a scala compile task from my build script but I can’t figure out how to configure it correctly. Sep 17, 2013 · Gradle itself shouldn’t be run with Java 8 at this time, as there are known incompatibilities (e. All Java sources at src/main/java and all Scala sources at src/main/scala. def scalaClasspath = scalaRuntime. 3. More complete code, please refer to my Github code repo: https Jan 21, 2020 · 2. I can see this basic problem with the Gradle Scala Plugin covered in many places over the years, even in StackOverflow, but none of the solutions seem to work in this case. I’m using ivy, and I see that I’m able to compile Java code which depends on other lib Aug 13, 2014 · 6. tasks. TaskExecutionException: Execution failed for task ':compileScala'. The toolchain JavaLauncher to use for executing the Scala compiler. We are upgrading to OpenJDK11 from oracle jdk 8. I want to migrate them to api and implementation scopes. javaCompiler. Develocity already supports Gradle Build Tool, Apache Maven, and most recently, Bazel. Plugin conventions. excludes. The classpath to use to locate classes referenced by the documented source. The plugin provides default values for the linter allowing to overwrite them. mkdir -p src/main/scala. When compiling, Hydra automatically collects statistics about your Scala project and points out bottlenecks in compilation via a modern web dashboard. I tried to change the composeFatJar task from configurations. > xsbti/CompileFailed. gradle file. Community Home. Note that javaCompile runs but scalaCompile task is considered up-to-date even though the scala class implements the interface from the java code. Compiling and testing for Java 6 or Java 7. 10, 1. From inside the new project directory, run the init task using the following command in a terminal: gradle init . API. NoClassDefFoundError: scala/Predef$' The build. The Scala compiler scalac offers various compiler options, or flags, that change the compiler’s default behavior. The Develocity multi-build-system solution strategy is based on the strategic premise that the build system market is and will continue to be fragmented Mar 15, 2021 · Bloop is an alternative to Gradle for the compile/test/run stages. Jul 21, 2015 · This post will help create a new Spark project on IntelliJ Using Scala compiler. gradle文件，由于是IDEA创建的，所以里面已经有了一些内容。. Gradle is the open source build system of choice for Java, Android, and Kotlin developers. sourceCompatibility = "1. Martin Odersky serves in a technical advisory role to Gradle. Once i deleted my main (user) gradle cache all scala projects started failing in this same way. gradle” file and the same are extended for every submodule in the project. 1%. Common configuration for Scala based projects. Base Scala Compile Options Gradle Build Tool accelerates developer productivity . Additionally, you may want to build a project using a Java version that is not supported for running Gradle. scalaCompileOptions. This has to happen before the main compile phase of the build lifecycle, so I can’t just change the src dir of the standard scala plugin. jar and -sources. 0%. An alternative is to keep the default 8. cd runnablescala. jar, -sources. I created a sample project with a Java interface that is implemented by a Scala class and then a Java class with a main method that uses the Scala class. Dec 15, 2014 · I have a simple gradle file from which I build a jar file. New features in Gradle 6. The directory property that represents the directory to generate the . withType (ScalaCompile) { scalaCompileOptions. every second (sometimes random) build works. I am running into #292 i. If your program can run on its own, all you need is sbt run. mkdir -p com/johnathanmarksmith/gradle. Jan 4, 2021 · I have a scala based project built with gradle, it contains java and scala code. Build tool used is Gradle , build file will create single fat jar for cluster deployment Post will enable developers to Jun 1, 2019 · I use gradle to build my scala project. Below is my build. 0 nightly build I get this error Jun 18, 2015 · Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. Every configuration can be identified by a unique name. destinationDir. The expected result is both: javaCompile and scalaCompile tasks run and the latter fails. internal. 0. public interface ScalaPluginExtension. 7 Run the init task. includes. Also added tests from ScalaCompile and DID NOT add tests for ScalaDoc as I didn't see tests for the Groovy or Java versions of these Jul 3, 2019 · Expected Behavior i use idea and gradle to build my project, it work good when my lib is 2. gradle build - which runs build and tests for a single Scala version - default one. The gradle plugin generates a configuration file per every source set in your build definition. mkdir -p src/main/resources. 常用配置（针对JAVA和WEB项目）. no pu cw mg dr vk nw zg qa ug