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sbt, the interactive build tool
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Eugene Yokota 3a1463bb7d Try to workaround "a pure expression does nothing" warning 
Ref https://github.com/scala/bug/issues/12112

Current app transformation macro creates a tree that looks like:

```scala
FullInstance.app[[T0[x]](T0[Int], T0[Int]), Unit](scala.Tuple2(task2, task1), (($p$macro$3: (Int, Int)) => {
  <synthetic> val $q$macro$2: Int = $p$macro$3._1;
  <synthetic> val $q$macro$1: Int = $p$macro$3._2;
  {
    ($q$macro$1: Int);
    ($q$macro$2: Int);
    ()
  }
}))(AList.tuple2[Int, Int])
```

Starting Scala 2.12.12 the compiler's "pure expression does nothing" has become more enthusiastic/accurate in its reach, and it started warning about the naked reference to `$q$macro$1` that appears to do nothing, even though in reality it would trigger the tasks and do something in the context of sbt. It's just _that_ particular line ends up macroed away into a pure expression.

A somewhat bizarre workaround is to make a fake call to a method just to satisfy this warning. I've chosen `scala.Predef.identity` here so it can be composed together with the existing expression nesting when they exist.
 		2020-10-17 20:03:09 -04:00
.github/ISSUE_TEMPLATE Update issue template 2020-02-03 14:28:20 -05:00
client Change remaining sbtc to sbtn 2020-08-15 09:35:59 -07:00
core-macros/src/main/scala/sbt/internal/util/appmacro Try to workaround "a pure expression does nothing" warning 2020-10-17 20:03:09 -04:00
dependency-tree/src/main/scala/sbt/plugins Split to MiniDependencyTreePlugin 2020-09-22 21:21:01 -04:00
internal Don't throw ClosedException on ctrl+d 2020-10-14 20:25:31 -07:00
launch Adds sbt.boot.lock sysprop to opt-out 2018-02-08 13:02:39 +00:00
licenses move remaining pieces of sbt subproject to sbt_pending and fix notices 2010-09-21 21:55:50 -04:00
main Merge pull request #5932 from aaabramov/feature/3212/new-plugins-view 2020-10-11 13:19:16 -04:00
main-actions/src Kill external processes on sigint 2020-08-23 10:15:07 -07:00
main-command/src Check if target is directory before creating 2020-10-13 08:17:22 -07:00
main-settings/src Upgrade scala version to 2.12.12 2020-08-11 23:33:12 -04:00
notes Merge pull request #5041 from jsoref/https 2020-06-14 17:34:58 -04:00
project bump JUnit 2020-10-17 04:11:33 -04:00
protocol/src/main Fix switching between raw and canonical input 2020-09-21 13:42:03 -07:00
run Add loop to SelectMainClass 2020-07-10 13:37:54 -07:00
sbt/src Try to workaround "a pure expression does nothing" warning 2020-10-17 20:03:09 -04:00
scripted-plugin/src/main/scala/sbt -Xfatal-warnings in most subprojects 2018-09-18 11:47:55 -04:00
scripted-sbt-old/src/main/scala/sbt/test Update header 2018-09-14 04:53:36 -04:00
scripted-sbt-redux Kill external processes on sigint 2020-08-23 10:15:07 -07:00
server-test/src Restore string cancellation test 2020-09-28 07:28:24 -07:00
src/main/conscript sbt 1.3.0 2019-09-04 01:24:08 -04:00
tasks Don't throw on closed completion service 2020-09-28 07:03:27 -07:00
tasks-standard Selective functor 2020-05-17 23:36:04 -04:00
testing Fix #5801: Remove duplicate TaskDefs in test agent 2020-08-26 17:19:35 +02:00
util-cache Don't use last modified time of directories in doc 2020-01-13 13:11:09 -08:00
util-tracking update scaladoc to reflect argument type of the overload 2020-04-24 16:54:48 +02:00
vscode-sbt-scala https://www.apple.com 2019-09-05 14:11:07 -04:00
zinc-lm-integration/src integrate with VirtualFile changes 2020-04-24 17:44:14 -04:00
.appveyor.yml Disable virtual io in CI 2020-08-19 11:26:38 -07:00
.gitattributes Contraband 0.4.6 2020-04-24 17:44:15 -04:00
.gitignore Update .gitignore for metals support 2020-05-16 09:52:20 +02:00
.java-version Configure JVM 1.8 in .java-version 2016-10-07 08:48:23 -05:00
.mailmap Add mailmap 2019-06-11 09:30:14 +02:00
.scalafmt.conf Set `lineEndings = preserve` in .scalafmt.conf 2020-06-29 08:15:24 -07:00
.travis.yml Bump sbt snapshot version 2020-10-06 11:34:12 -07:00
CONTRIBUTING.md https://www.scala-sbt.org 2019-09-05 14:11:13 -04:00
DEVELOPING.md Merge pull request #5041 from jsoref/https 2020-06-14 17:34:58 -04:00
LICENSE Apache License 2.0 2018-09-14 03:38:58 -04:00
NOTICE Apache License 2.0 2018-09-14 03:38:58 -04:00
PROFILING.md fix typo 2018-07-08 22:18:57 +09:00
README.md Merge pull request #5041 from jsoref/https 2020-06-14 17:34:58 -04:00
SUPPORT.md Split support into SUPPORT.md 2018-04-25 14:55:09 +01:00
build.sbt load .inputrc file 2020-10-14 17:13:53 +09:00
reset.sh 1.0.3-SNAPSHOT 2017-09-16 15:52:58 -04:00
sbt-allsources.sh Bump underlying modules to latest 2017-03-23 12:41:24 -04:00
server.md setting query is "sbt/setting" 2017-10-03 01:45:06 -04:00

README.md

Build Status Latest version Gitter Chat

sbt

sbt is a build tool for Scala, Java, and more.

For general documentation, see https://www.scala-sbt.org/.

sbt 1.x

This is the 1.x series of sbt. The source code of sbt is split across several GitHub repositories, including this one.

  • sbt/io hosts sbt.io module.
  • sbt/librarymanagement hosts sbt.librarymanagement module that wraps Ivy.
  • sbt/zinc hosts Zinc, an incremental compiler for Scala.
  • sbt/sbt, this repository hosts modules that implements the build tool.

Other links

  • Setup: Describes getting started with the latest binary release.
  • FAQ: Explains how to get help and more.
  • sbt/sbt-zero-seven: hosts sbt 0.7.7 and earlier versions

Issues and Pull Requests

Please read CONTRIBUTING carefully before opening a GitHub Issue.

The short version: try searching or asking on StackOverflow.

license

See LICENSE.