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sbt, the interactive build tool
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Ethan Atkins fdce1eb7e6 Add gc monitor to warn users about excessive gc 
It is not uncommon in large projects for the jvm to silently be running
frequent full gcs in the background. This can slow progress to a crawl.
Usually the fix is to bump the -Xmx parameter but if the users do not
realize that their tasks are slow because of gc thrashing, they may not
think to do that. This PR adds a monitor that hooks into the jvm's event
notification system to keep track of how much time is spent in GC. If
the ratio of the amount of time in gc to the total elapsed time exceeds
some threshold, we emit a warning.

I was motivated to do this because publishLocal can take forever in the
zinc project because a 1G heap isn't big enough.
 		2020-09-05 13:47:39 -07:00
.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 Use a macro to create StringTypeTag instances 2020-08-08 09:02:38 -07:00
internal Improve progress display with limit + 1 tasks 2020-09-02 21:34:54 -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 Add gc monitor to warn users about excessive gc 2020-09-05 13:47:39 -07:00
main-actions/src Kill external processes on sigint 2020-08-23 10:15:07 -07:00
main-command/src Honor formatEnabledInEnv at the Terminal level 2020-08-23 08:51:55 -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 sbt build to 1.4.0-M2 2020-08-19 09:26:27 -07:00
protocol/src/main Add bspConfig task 2020-08-17 17:33:48 +02:00
run Add loop to SelectMainClass 2020-07-10 13:37:54 -07:00
sbt/src Merge pull request #5767 from eed3si9n/wip/dotty-mixed 2020-08-16 21:15:21 -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 Merge pull request #5749 from eed3si9n/wip/sbtn 2020-08-14 12:10:09 -04:00
src/main/conscript sbt 1.3.0 2019-09-04 01:24:08 -04:00
tasks Cancel all running tasks with ctrl+c 2020-08-14 14:52:57 -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 Use latest sbt version in a travis build 2020-08-19 12:00:02 -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 Disable pipelining in CI 2020-08-19 11:26:38 -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 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.