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sbt, the interactive build tool
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Ethan Atkins df628d4f87 Improve legacy launcher 
To minimize classloading and consistency between sbt instances launched
with the latest launcher compared to old launchers, I overhauled code
that replaces the app configuration and meta build classloader at
startup. The goals of this change for legacy launchers were:

1) Do not ever load the scala-library.jar from the app provider class loader.
2) Close the class loaders that are below the topLoader in the class
   loading hierarcy

For the new launcher, we simply want to avoid modifying the loader at
all.

I added the SbtParserInit class so that it was more straightforward to
preload the global instance using reflection. We now use reflection to
instantiate an SbtParserInit instance for both the legacy and new
launcher cases to simplify the logic.

After this change, the legacy loader still uses somewhat more metaspace
than the new loader, but the difference seems to be O(10MB), which
should only impact projects that were close their MaxMetaspaceSize to
begin with.

I verified using javap that none of the code in this class uses the
scala standard library which should help metaspace since we don't load
much of the scala standard library until we enter xMainImpl.run.
 		2019-05-28 09:53:35 -07:00
.github Fix CONTRIBUTING and link to it 2018-09-04 23:25:42 -04:00
core-macros/src/main/scala/sbt/internal/util/appmacro Add support for managed task inputs 2019-05-02 14:33:29 -07:00
internal Add support for managed task inputs 2019-05-02 14:33:29 -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 Improve legacy launcher 2019-05-28 09:53:35 -07:00
main-actions/src Bump io 2019-05-02 14:33:01 -07:00
main-command/src disable "Reload" exception stack trace 2019-05-13 12:15:19 +09:00
main-settings/src Allow calling TaskKey.previous in input tasks 2019-04-25 15:58:01 -07:00
notes Implement sequential[B](tasks: Seq[Initialize[Task[B]]]) and remove useless comment outs 2018-09-19 20:54:18 -04:00
project Reduce concurrency of scalafmtCheck 2019-05-17 14:51:07 -04:00
protocol/src/main apply formatting 2019-04-20 03:23:54 -04:00
run Properly close a number of classloaders 2019-05-02 14:38:33 -07:00
sbt/src Reproduce Twirl regression 2019-05-25 14:10:14 -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 Fix ScalaTest issue with ScalaLibrary classloader 2019-05-17 14:24:55 -04:00
src/main/conscript 1.2.0 2018-07-30 00:56:36 -04:00
tasks apply formatting 2019-04-20 03:23:54 -04:00
tasks-standard apply formatting 2019-04-20 03:23:54 -04:00
testing apply formatting 2019-04-20 03:23:54 -04:00
vscode-sbt-scala Bump node modules for security fixes 2019-02-22 10:51:54 -05:00
zinc-lm-integration/src Close URLClassLoaders after getting bridge 2019-04-30 12:24:47 -07:00
.appveyor.yml Run more scripted tests on windows 2019-05-11 22:01:49 -07:00
.gitattributes remove gittatributes, assume core.autocrlf=false 2018-06-26 17:38:05 +03:00
.gitignore adding a fatjar release (aka sbt-big) to the build 2018-11-07 08:37:49 +00:00
.java-version Configure JVM 1.8 in .java-version 2016-10-07 08:48:23 -05:00
.sbtopts Use .sbtopts to increase the RAM 2018-06-25 19:40:15 -04:00
.scalafmt.conf workaround Scalafmt regex 2019-04-20 14:18:10 -04:00
.travis.yml always reresolve sbt artifacts when using Coursier 2019-04-27 14:31:13 -04:00
CONTRIBUTING.md fix branch name in CONTRIBUTING 2018-09-10 16:18:40 +02:00
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 Add Travis build status badge and latest version badge #4621 2019-04-19 06:36:46 -07:00
SUPPORT.md Split support into SUPPORT.md 2018-04-25 14:55:09 +01:00
build.sbt Add scripted watchTriggers 2019-05-28 09:53:35 -07:00
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 http://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/util hosts a collection of internally used modules.
  • 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.