安裝
按照官網(wǎng)的方法，在macbook上用homebrew安裝sbt：
$ brew install sbt
==> Using the sandbox
==> Downloading https://github.com/sbt/sbt/releases/download/v0.13.15/sbt-0.13.1
Already downloaded: /Users/yangjia/Library/Caches/Homebrew/sbt-0.13.15.tgz
==> Caveats
You can use $SBT_OPTS to pass additional JVM options to SBT:
SBT_OPTS="-XX:+CMSClassUnloadingEnabled -XX:MaxPermSize=256M"
This formula is now using the standard lightbend sbt launcher script.
Project specific options should be placed in .sbtopts in the root of your project.
Global settings should be placed in /usr/local/etc/sbtopts
==> Summary
/usr/local/Cellar/sbt/0.13.15: 378 files, 63.3MB, built in 3 seconds
有時候從github下載總是失敗?？梢允謩訌?a target="_blank" rel="nofollow">官網(wǎng)下載sbt-0.13.15壓縮包，解壓后在/usr/local/bin下建了sbt的軟鏈接。
$ ln -s sbt /your/sbt
?第一個demo工程
繼續(xù)照著官網(wǎng)的教程，建第一個sbt工程：
$ sbt new sbt/scala-seed.g8
WARN: No sbt.version set in project/build.properties, base directory: /Users/yangjia/sources/learning_scala/sbt
[warn] Executing in batch mode.
[warn] For better performance, hit [ENTER] to switch to interactive mode, or
[warn] consider launching sbt without any commands, or explicitly passing 'shell'
[info] Set current project to sbt (in build file:/Users/yangjia/sources/learning_scala/sbt/)
[info] Resolving org.scala-sbt.sbt-giter8-resolver#sbt-giter8-resolver_2.10;0.1.[info] Resolving org.scala-sbt.sbt-giter8-resolver#sbt-giter8-resolver_2.10;0.1.[info] Resolving org.eclipse.jgit#org.eclipse.jgit-parent;3.7.0.201502260915-r .[info] Resolving org.eclipse.jgit#org.eclipse.jgit-parent;3.7.0.201502260915-r .[info] Resolving org.eclipse.jgit#org.eclipse.jgit.archive;3.7.0.201502260915-r [info] Resolving org.eclipse.jgit#org.eclipse.jgit.archive;3.7.0.201502260915-r [info] Resolving org.eclipse.jgit#org.eclipse.jgit-parent;3.7.0.201502260915-r .[info] Resolving org.eclipse.jgit#org.eclipse.jgit-parent;3.7.0.201502260915-r .[info] Resolving org.eclipse.jgit#org.eclipse.jgit-parent;3.7.0.201502260915-r .[info] Resolving org.codehaus.plexus#plexus-container-default;1.0-alpha-9-stable[info] Resolving org.codehaus.plexus#plexus-container-default;1.0-alpha-9-stable[info] Resolving org.slf4j#slf4j-parent;1.7.20 ...
[info] downloading https://repo1.maven.org/maven2/org/scala-sbt/sbt-giter8-resolver/sbt-giter8-resolver_2.10/0.1.3/sbt-giter8-resolver_2.10-0.1.3.jar ...
[info] [SUCCESSFUL ] org.scala-sbt.sbt-giter8-resolver#sbt-giter8-resolver_2.10;0.1.3!sbt-giter8-resolver_2.10.jar (744ms)
[info] downloading https://repo1.maven.org/maven2/org/foundweekends/giter8/giter8_2.10/0.7.2/giter8_2.10-0.7.2.jar ...
[info] [SUCCESSFUL ] org.foundweekends.giter8#giter8_2.10;0.7.2!giter8_2.10.jar (825ms)
[info] downloading https://repo1.maven.org/maven2/org/foundweekends/giter8/giter8-lib_2.10/0.7.2/giter8-lib_2.10-0.7.2.jar ...
[info] [SUCCESSFUL ] org.foundweekends.giter8#giter8-lib_2.10;0.7.2!giter8-lib_2.10.jar (1853ms)
[info] downloading https://repo1.maven.org/maven2/com/github/scopt/scopt_2.10/3.5.0/scopt_2.10-3.5.0.jar ...
[info] [SUCCESSFUL ] com.github.scopt#scopt_2.10;3.5.0!scopt_2.10.jar (1397ms)
[info] downloading https://repo1.maven.org/maven2/ch/qos/logback/logback-classic/1.1.7/logback-classic-1.1.7.jar ...
[info] [SUCCESSFUL ] ch.qos.logback#logback-classic;1.1.7!logback-classic.jar (1563ms)
[info] downloading https://repo1.maven.org/maven2/org/clapper/scalasti_2.10/2.1.2/scalasti_2.10-2.1.2.jar ...
[info] [SUCCESSFUL ] org.clapper#scalasti_2.10;2.1.2!scalasti_2.10.jar (801ms)
[info] downloading https://repo1.maven.org/maven2/org/eclipse/jgit/org.eclipse.jgit.pgm/3.7.0.201502260915-r/org.eclipse.jgit.pgm-3.7.0.201502260915-r.jar ...
[info] [SUCCESSFUL ] org.eclipse.jgit#org.eclipse.jgit.pgm;3.7.0.201502260915-r!org.eclipse.jgit.pgm.jar (1122ms)
[info] downloading https://repo1.maven.org/maven2/commons-io/commons-io/2.4/commons-io-2.4.jar...
[info] [SUCCESSFUL ] commons-io#commons-io;2.4!commons-io.jar (1024ms)
[info] downloading https://repo1.maven.org/maven2/org/codehaus/plexus/plexus-archiver/2.7.1/plexus-archiver-2.7.1.jar ...
[info] [SUCCESSFUL ] org.codehaus.plexus#plexus-archiver;2.7.1!plexus-archiver.jar (926ms)
[info] downloading https://repo1.maven.org/maven2/org/clapper/grizzled-scala_2.10/3.1.0/grizzled-scala_2.10-3.1.0.jar ...
[info] [SUCCESSFUL ] org.clapper#grizzled-scala_2.10;3.1.0!grizzled-scala_2.10.jar (1480ms)
[info] downloading https://repo1.maven.org/maven2/org/clapper/classutil_2.10/1.1.0/classutil_2.10-1.1.0.jar ...
[info] [SUCCESSFUL ] org.clapper#classutil_2.10;1.1.0!classutil_2.10.jar (834ms)
[info] downloading https://repo1.maven.org/maven2/org/antlr/ST4/4.0.8/ST4-4.0.8.jar ...
[info] [SUCCESSFUL ] org.antlr#ST4;4.0.8!ST4.jar (953ms)
[info] downloading https://repo1.maven.org/maven2/org/ow2/asm/asm/5.1/asm-5.1.jar ...
[info] [SUCCESSFUL ] org.ow2.asm#asm;5.1!asm.jar (770ms)
[info] downloading https://repo1.maven.org/maven2/org/ow2/asm/asm-commons/5.1/asm-commons-5.1.jar ...
[info] [SUCCESSFUL ] org.ow2.asm#asm-commons;5.1!asm-commons.jar (767ms)
[info] downloading https://repo1.maven.org/maven2/org/ow2/asm/asm-util/5.1/asm-util-5.1.jar ...
[info] [SUCCESSFUL ] org.ow2.asm#asm-util;5.1!asm-util.jar (764ms)
[info] downloading https://repo1.maven.org/maven2/org/ow2/asm/asm-tree/5.1/asm-tree-5.1.jar ...
[info] [SUCCESSFUL ] org.ow2.asm#asm-tree;5.1!asm-tree.jar (771ms)
[info] downloading https://repo1.maven.org/maven2/org/antlr/antlr-runtime/3.5.2/antlr-runtime-3.5.2.jar ...
[info] [SUCCESSFUL ] org.antlr#antlr-runtime;3.5.2!antlr-runtime.jar (857ms)
[info] downloading https://repo1.maven.org/maven2/args4j/args4j/2.0.12/args4j-2.0.12.jar ...
[info] [SUCCESSFUL ] args4j#args4j;2.0.12!args4j.jar (789ms)
[info] downloading https://repo1.maven.org/maven2/org/apache/commons/commons-compress/1.6/commons-compress-1.6.jar ...
[info] [SUCCESSFUL ] org.apache.commons#commons-compress;1.6!commons-compress.jar (985ms)
[info] downloading https://repo1.maven.org/maven2/org/eclipse/jgit/org.eclipse.jgit.archive/3.7.0.201502260915-r/org.eclipse.jgit.archive-3.7.0.201502260915-r.jar ...
[info] [SUCCESSFUL ] org.eclipse.jgit#org.eclipse.jgit.archive;3.7.0.201502260915-r!org.eclipse.jgit.archive.jar (747ms)
[info] downloading https://repo1.maven.org/maven2/org/eclipse/jgit/org.eclipse.jgit/3.7.0.201502260915-r/org.eclipse.jgit-3.7.0.201502260915-r.jar ...
[info] [SUCCESSFUL ] org.eclipse.jgit#org.eclipse.jgit;3.7.0.201502260915-r!org.eclipse.jgit.jar (1947ms)
[info] downloading https://repo1.maven.org/maven2/org/eclipse/jgit/org.eclipse.jgit.ui/3.7.0.201502260915-r/org.eclipse.jgit.ui-3.7.0.201502260915-r.jar ...
[info] [SUCCESSFUL ] org.eclipse.jgit#org.eclipse.jgit.ui;3.7.0.201502260915-r!org.eclipse.jgit.ui.jar (743ms)
[info] downloading https://repo1.maven.org/maven2/org/tukaani/xz/1.4/xz-1.4.jar ...
[info] [SUCCESSFUL ] org.tukaani#xz;1.4!xz.jar (997ms)
[info] downloading https://repo1.maven.org/maven2/org/osgi/org.osgi.core/4.3.1/org.osgi.core-4.3.1.jar ...
[info] [SUCCESSFUL ] org.osgi#org.osgi.core;4.3.1!org.osgi.core.jar (878ms)
[info] downloading https://repo1.maven.org/maven2/com/googlecode/javaewah/JavaEWAH/0.7.9/JavaEWAH-0.7.9.jar ...
[info] [SUCCESSFUL ] com.googlecode.javaewah#JavaEWAH;0.7.9!JavaEWAH.jar(bundle) (782ms)
[info] downloading https://repo1.maven.org/maven2/org/apache/httpcomponents/httpclient/4.1.3/httpclient-4.1.3.jar ...
[info] [SUCCESSFUL ] org.apache.httpcomponents#httpclient;4.1.3!httpclient.jar (875ms)
[info] downloading https://repo1.maven.org/maven2/org/apache/httpcomponents/httpcore/4.1.4/httpcore-4.1.4.jar ...
[info] [SUCCESSFUL ] org.apache.httpcomponents#httpcore;4.1.4!httpcore.jar (803ms)
[info] downloading https://repo1.maven.org/maven2/commons-logging/commons-logging/1.1.1/commons-logging-1.1.1.jar ...
[info] [SUCCESSFUL ] commons-logging#commons-logging;1.1.1!commons-logging.jar (755ms)
[info] downloading https://repo1.maven.org/maven2/commons-codec/commons-codec/1.4/commons-codec-1.4.jar ...
[info] [SUCCESSFUL ] commons-codec#commons-codec;1.4!commons-codec.jar (754ms)
[info] downloading https://repo1.maven.org/maven2/org/codehaus/plexus/plexus-container-default/1.0-alpha-9-stable-1/plexus-container-default-1.0-alpha-9-stable-1.jar ...
[info] [SUCCESSFUL ] org.codehaus.plexus#plexus-container-default;1.0-alpha-9-stable-1!plexus-container-default.jar (809ms)
[info] downloading https://repo1.maven.org/maven2/org/codehaus/plexus/plexus-utils/3.0.18/plexus-utils-3.0.18.jar ...
[info] [SUCCESSFUL ] org.codehaus.plexus#plexus-utils;3.0.18!plexus-utils.jar (828ms)
[info] downloading https://repo1.maven.org/maven2/org/codehaus/plexus/plexus-io/2.2/plexus-io-2.2.jar ...
[info] [SUCCESSFUL ] org.codehaus.plexus#plexus-io;2.2!plexus-io.jar (763ms)
[info] downloading https://repo1.maven.org/maven2/ch/qos/logback/logback-core/1.1.7/logback-core-1.1.7.jar ...
[info] [SUCCESSFUL ] ch.qos.logback#logback-core;1.1.7!logback-core.jar (945ms)
[info] downloading https://repo1.maven.org/maven2/org/slf4j/slf4j-api/1.7.20/slf4j-api-1.7.20.jar ...
[info] [SUCCESSFUL ] org.slf4j#slf4j-api;1.7.20!slf4j-api.jar (749ms)
Minimum Scala build.
name [My Something Project]: helloworld
Template applied in ./helloworld
這里用到了sbt 0.13.13新增的new命令，這個命令通過?模板創(chuàng)建一個構(gòu)建工程(build definition)。正如命令輸出，new命令實際上是用Giter8。Giter8基于模板系統(tǒng)，我們這次用到的scala/scala-seed.g8只是他眾多模板的其中一個。scala-seed是scala的官方?模板。
在下載所有的依賴庫后，sbt提示輸入工程名，我填的是helloworld。
最后會生成如下的目錄結(jié)構(gòu)
圖片發(fā)自簡書App
運行工程
- 在
helloworld目錄下，輸入sbt進(jìn)入sbt shell。需要注意的是，new生成的?配置文件build.properities指定的sbt?版本是0.13.13。進(jìn)入shell后，會自動下載0.13.13版本的sbt，如下所示：
banxia:helloworld yangjia$ sbt
Getting org.scala-sbt sbt 0.13.13 (this may take some time)...
可以手動把build.properities的sbt?版本改為0.13.15，再進(jìn)shell就不再下載老版本了。
$ sbt
[info] Loading project definition from /Users/yangjia/sources/learning_scala/sbt/helloworld/project
[info] Updating {file:/Users/yangjia/sources/learning_scala/sbt/helloworld/project/}helloworld-build...
[info] Resolving org.scala-sbt.ivy#ivy;2.3.0-sbt-48dd0744422128446aee9ac31aa356e[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[info] Done updating.
[info] Compiling 1 Scala source to /Users/yangjia/sources/learning_scala/sbt/helloworld/project/target/scala-2.10/sbt-0.13/classes...
[info] 'compiler-interface' not yet compiled for Scala 2.10.6. Compiling...
[info] Compilation completed in 17.091 s
[info] Set current project to Hello (in build file:/Users/yangjia/sources/learning_scala/sbt/helloworld/)
>
shell?準(zhǔn)備OK后，打印一個>，等待輸入。
- 輸入run，執(zhí)行
Hello.scala
> run
[info] Updating {file:/Users/yangjia/sources/learning_scala/sbt/helloworld/}root...
[info] Resolving org.sonatype.oss#oss-parent;9 ...
[info] downloading https://repo1.maven.org/maven2/org/scala-lang/scala-library/2.12.1/scala-library-2.12.1.jar ...
[info] [SUCCESSFUL ] org.scala-lang#scala-library;2.12.1!scala-library.jar (3126ms)
[info] downloading https://repo1.maven.org/maven2/org/scalatest/scalatest_2.12/3.0.1/scalatest_2.12-3.0.1.jar ...
[info] [SUCCESSFUL ] org.scalatest#scalatest_2.12;3.0.1!scalatest_2.12.jar(bundle) (2438ms)
[info] downloading https://repo1.maven.org/maven2/org/scalactic/scalactic_2.12/3.0.1/scalactic_2.12-3.0.1.jar ...
[info] [SUCCESSFUL ] org.scalactic#scalactic_2.12;3.0.1!scalactic_2.12.jar(bundle) (1806ms)
[info] downloading https://repo1.maven.org/maven2/org/scala-lang/scala-reflect/2.12.1/scala-reflect-2.12.1.jar ...
[info] [SUCCESSFUL ] org.scala-lang#scala-reflect;2.12.1!scala-reflect.jar (1551ms)
[info] downloading https://repo1.maven.org/maven2/org/scala-lang/modules/scala-xml_2.12/1.0.5/scala-xml_2.12-1.0.5.jar ...
[info] [SUCCESSFUL ] org.scala-lang.modules#scala-xml_2.12;1.0.5!scala-xml_2.12.jar(bundle) (1212ms)
[info] downloading https://repo1.maven.org/maven2/org/scala-lang/modules/scala-parser-combinators_2.12/1.0.4/scala-parser-combinators_2.12-1.0.4.jar ...
[info] [SUCCESSFUL ] org.scala-lang.modules#scala-parser-combinators_2.12;1.0.4!scala-parser-combinators_2.12.jar(bundle) (3376ms)
[info] downloading https://repo1.maven.org/maven2/org/scala-lang/scala-compiler/2.12.1/scala-compiler-2.12.1.jar ...
[info] [SUCCESSFUL ] org.scala-lang#scala-compiler;2.12.1!scala-compiler.jar (3747ms)
[info] downloading https://repo1.maven.org/maven2/org/scala-lang/modules/scala-xml_2.12/1.0.6/scala-xml_2.12-1.0.6.jar ...
[info] [SUCCESSFUL ] org.scala-lang.modules#scala-xml_2.12;1.0.6!scala-xml_2.12.jar(bundle) (1782ms)
[info] downloading https://repo1.maven.org/maven2/jline/jline/2.14.1/jline-2.14.1.jar ...
[info] [SUCCESSFUL ] jline#jline;2.14.1!jline.jar (1977ms)
[info] Done updating.
[info] Compiling 1 Scala source to /Users/yangjia/sources/learning_scala/sbt/helloworld/target/scala-2.12/classes...
[info] 'compiler-interface' not yet compiled for Scala 2.12.1. Compiling...
[info] Compilation completed in 17.956 s
[info] Running example.Hello
hello
[success] Total time: 67 s, completed 2017-7-15 16:40:24
