Scala 简单虚拟项目

Question

目前我的整个工作周期是：

1. edit foo.scala
2. fsc foo.scala && scala -cp 。 FooMain

但是我的项目越来越大，我想拆分文件，进行单元测试等。 但我太懒了，懒得阅读 sbt 文档并做任何需要做的事情来获取 sbt 的“Makefile”。类似地，对于单元测试（有这么多框架，该选择哪个？）

让我开心的是一个简单的压缩虚拟项目，其中包含使用 sbt 的虚拟单元测试。

你知道这样的事情是否存在吗？

Answer 1

那么，您应该使用SBT。您不需要为它编写任何内容：它将创建基本项目所需的所有内容，并且只询问您项目名称是什么以及您将使用的 Scala 版本。

之后，只需将文件放在正确的位置即可。查找目录布局，尽管简短的答案是 src/main/scala 中的主源文件和 src/test/scala 中的测试源文件。不过，您将必须创建一个非常小的“makefile”来获取测试库。

Answer 2

更新答案（2016）

这些天，您有 Giter8 项目，与 sbt 的启动器版本 0.13.13 或更高版本、及其命令 new 结合使用。

sbt new ... 

---

原始答案（2010）

是的，存在这样一个基于 sbt 并配有 scala 测试的模板项目：

请参阅 Scala、Sbt 和 Eclipse 入门及其模板项目。

• 1) 从 sbt-console-template 克隆或下载/提取源代码

    % git clone git://github.com/mgutz/sbt-console-template.git  your-project

• 2) 从 sbt 控制台

       # update dependencies
       > update

       # run project
       > run

       # test project continuously
       > ~test

       # eclipsify
       > eclipse

（“eclipse”部分是可选的，只有当您想从 sbt 项目生成 Scala eclipse 项目时才在这里）

---

另一个 Scala 模板项目：

使用 Maven 从头开始​​构建混合 Scala 2.8/Java 应用程序

它使用以下模板（这里是 包含完整 Maven-Scala 项目的 zip 文件）

+-scalajavatut/
  +-pom.xml
  +-src/
  | +-main/
  | | +-java/
  | | | +-de/
  | | |   +-mackaz/
  | | |     +-HelloScala.java
  | | +-scala/
  | |   +-de/
  | |     +-mackaz/
  | |       +-App.scala
  | +-test/
  |   +-scala/
  |     +-de/
  |       +-mackaz/
  |         +-AppTest.scala
  |         +-MySpec.scala

：以下 pom.xml：

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>de.mackaz</groupId>
  <artifactId>tutorial1</artifactId>
  <version>1.0-SNAPSHOT</version>
  <inceptionYear>2008</inceptionYear>
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <scala.version>2.8.0-SNAPSHOT</scala.version>
  </properties>

  <repositories>
    <repository>
      <id>scala-tools.org</id>
      <name>Scala-Tools Maven2 Repository</name>
      <url>http://scala-tools.org/repo-releases</url>
    </repository>

    <!-- Scala 2.8 Latest -->
   <repository>
      <id>scala-tools.org.snapshots</id>
      <name>Scala Tools Maven2 Repository</name>
      <url>http://scala-tools.org/repo-snapshots</url>
      <snapshots />
   </repository>

  </repositories>

  <pluginRepositories>
    <pluginRepository>
      <id>scala-tools.org</id>
      <name>Scala-Tools Maven2 Repository</name>
      <url>http://scala-tools.org/repo-releases</url>
    </pluginRepository>
  </pluginRepositories>

  <dependencies>
    <dependency>
      <groupId>org.scala-lang</groupId>
      <artifactId>scala-library</artifactId>
      <version>${scala.version}</version>
    </dependency>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.4</version>
      <scope>test</scope>
    </dependency>
    <!-- Specs (Behavior Driven Testing through JUnit) -->
    <dependency>
     <groupId>org.scala-tools.testing</groupId>
     <artifactId>specs</artifactId>
     <version>1.6.1-2.8.0.Beta1-RC1</version>
     <scope>test</scope>
    </dependency>
  </dependencies>

  <build>
    <plugins>
      <plugin>
        <groupId>org.scala-tools</groupId>
        <artifactId>maven-scala-plugin</artifactId>
        <version>2.13.1</version>
        <executions>
          <execution>
            <id>compile</id>
            <goals><goal>compile</goal></goals>
            <phase>compile</phase>
          </execution>
          <execution>
            <id>test-compile</id>
            <goals><goal>testCompile</goal></goals>
            <phase>test-compile</phase>
          </execution>
          <execution>
            <phase>process-resources</phase>
            <goals><goal>compile</goal></goals>
          </execution>
        </executions>
        <configuration>
          <scalaVersion>${scala.version}</scalaVersion>
          <launchers>
            <launcher>
              <id>myLauncher</id>
              <mainClass>de.mackaz.App</mainClass>
            </launcher>
          </launchers>
          <args>
            <arg>-target:jvm-1.5</arg>
            <!-- to support mix java/scala only -->
            <arg>-make:transitivenocp</arg>
            <arg>-dependencyfile</arg>
            <arg>${project.build.directory}/.scala_dependencies</arg>
          </args>
        </configuration>
      </plugin>

      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-eclipse-plugin</artifactId>
        <configuration>
          <downloadSources>true</downloadSources>
          <buildcommands>
            <buildcommand>ch.epfl.lamp.sdt.core.scalabuilder</buildcommand>
          </buildcommands>
          <additionalProjectnatures>
            <projectnature>ch.epfl.lamp.sdt.core.scalanature</projectnature>
          </additionalProjectnatures>
          <classpathContainers>
            <classpathContainer>org.eclipse.jdt.launching.JRE_CONTAINER</classpathContainer>
            <classpathContainer>ch.epfl.lamp.sdt.launching.SCALA_CONTAINER</classpathContainer>
          </classpathContainers>
        </configuration>
      </plugin>
    </plugins>
  </build>
  <reporting>
    <plugins>
      <plugin>
        <groupId>org.scala-tools</groupId>
        <artifactId>maven-scala-plugin</artifactId>
        <configuration>
          <scalaVersion>${scala.version}</scalaVersion>
        </configuration>
      </plugin>
    </plugins>
  </reporting>
</project>

您可以使用以下命令运行它：

mvn scala:run

在输出的末尾你应该看到

[INFO] launcher 'myLauncher' selected => de.mackaz.App
Hello from Java
Scala says: Hello from Scala!
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESSFUL
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 7 seconds
[INFO] Finished at: Wed Mar 24 18:14:22 CET 2010
[INFO] Final Memory: 14M/33M
[INFO] ------------------------------------------------------------------------

---

In Fanf's blog, Francois Armand 介绍：

使用 SLF4J 和 no-commons-logging 的 Scala 的 Maven2 引导 pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
 <modelVersion>4.0.0</modelVersion>
 <groupId>org.test</groupId>
 <artifactId>test</artifactId>
 <packaging>jar</packaging>

 <version>0.1-SNAPSHOT</version>

 <properties>
  <!-- UTF-8 for everyone -->
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

  <!-- Other general properties -->
  <slf4j-version>1.6.0</slf4j-version>
  <logback-version>0.9.20</logback-version>
  <scala-version>2.8.0.RC2</scala-version>
  <scala-maven-plugin-version>2.13.1</scala-maven-plugin-version>
  </properties>

 <description>
  Starting pom
 </description>

 <repositories>
  <repository>
   <id>scala-tools.org</id>
   <name>Scala-tools Maven2 Repository</name>
   <url>http://scala-tools.org/repo-releases</url>
  </repository>
  <repository>
   <id>scala-snapshots.org</id>
   <name>Scala-tools Maven2 Repository snapshots</name>
   <url>http://scala-tools.org/repo-snapshots</url>
  </repository>

  <repository>
   <id>no-commons-logging</id>
   <name>No-commons-logging Maven Repository</name>
   <layout>default</layout>
   <url>http://no-commons-logging.zapto.org/mvn2</url>
   <snapshots><enabled>false</enabled></snapshots>
  </repository>

 </repositories>

 <pluginRepositories>
  <pluginRepository>
   <id>scala-tools.org</id>
   <name>Scala-tools Maven2 Repository</name>
   <url>http://scala-tools.org/repo-releases</url>
   <snapshots><enabled>false</enabled></snapshots>
  </pluginRepository>
  <pluginRepository>
   <id>scala-snapshots.org</id>
   <name>Scala-tools Maven2 Repository snapshots</name>
   <url>http://scala-tools.org/repo-snapshots</url>
  </pluginRepository>
 </pluginRepositories>

 <build>
  <sourceDirectory>src/main/scala</sourceDirectory>
  <testSourceDirectory>src/test/scala</testSourceDirectory>
  <plugins>
   <plugin>
    <groupId>org.scala-tools</groupId>
    <artifactId>maven-scala-plugin</artifactId>
    <version>${scala-maven-plugin-version}</version> 
    <executions>
     <execution>
      <goals>
       <goal>compile</goal>
       <goal>testCompile</goal>
      </goals>
     </execution>
    </executions>
    <configuration>
     <args>
      <arg>-target:jvm-1.5</arg>
      <arg>-make:transitivenocp</arg>
      <arg>-dependencyfile</arg>
      <arg>${project.build.directory}/.scala_dependencies</arg>
     </args>
     <jvmArgs>
      <jvmArg>-client</jvmArg>
      <jvmArg>-Xmx1G</jvmArg>
     </jvmArgs>
    </configuration>
   </plugin>
   <plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>2.1</version>
    <configuration>
    <source>1.6</source>
    </configuration>
   </plugin>

  </plugins>
 </build>

 <dependencies>
  <dependency>
   <groupId>org.scala-lang</groupId>
   <artifactId>scala-library</artifactId>
   <version>${scala-version}</version>
  </dependency>
  <dependency>
   <groupId>joda-time</groupId>
   <artifactId>joda-time</artifactId>
   <version>1.6</version>
  </dependency>
  <!--  test -->
  <dependency>
   <groupId>junit</groupId>
   <artifactId>junit</artifactId>
   <version>4.7</version>
   <scope>test</scope>
  </dependency>


  <!--
   All the following is related to our will to NOT use Commong-logging
  -->
  <!-- use no-commons-logging -->
  <dependency>
   <groupId>commons-logging</groupId>
   <artifactId>commons-logging</artifactId>
   <version>99.0-does-not-exist</version>
  </dependency>
  <!-- no-commons-logging-api, if you need it -->
  <dependency>
   <groupId>commons-logging</groupId>
   <artifactId>commons-logging-api</artifactId>
   <version>99.0-does-not-exist</version>
  </dependency>
  <!-- the slf4j commons-logging replacement -->
  <dependency>
   <groupId>org.slf4j</groupId>
   <artifactId>jcl-over-slf4j</artifactId>
   <version>${slf4j-version}</version>
  </dependency>
  <!-- the other slf4j jars -->
  <dependency>
   <groupId>org.slf4j</groupId>
   <artifactId>slf4j-api</artifactId>
   <version>${slf4j-version}</version>
  </dependency>
  <!-- using slf4j native backend -->
  <dependency>
   <groupId>ch.qos.logback</groupId>
   <artifactId>logback-core</artifactId>
   <version>${logback-version}</version>
  </dependency>
  <dependency>
   <groupId>ch.qos.logback</groupId>
   <artifactId>logback-classic</artifactId>
   <version>${logback-version}</version>
  </dependency>
 </dependencies>
</project>