mirror of https://github.com/sbt/sbt.git
Java is a little anti-social and attempts to lazily allocate all of system memory, even for simple operations such as printing out the version. This causes sbt to fail to start in environments where resources are limited (i.e. ulimit(1)). This setup is common on shared infrastructure such as scientific computing clusters where because of the resource limit not being specified sbt cannot be used. The limit is set to 512MB which ought to be ample and is in any case the default from sbtconfig.txt. A better patch would use the limit specified there but it isn't clear that that is worth the effort. |
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| .lib | ||
| project | ||
| src | ||
| template-project | ||
| .gitattributes | ||
| .gitignore | ||
| .travis.yml | ||
| LICENSE.txt | ||
| README.md | ||
| build.sbt | ||
README.md
sbt: the launcher
An alternative script for running sbt. It works with sbt 0.7.x projects as well as 0.10+. If you're in an sbt project directory, the runner will figure out the versions of sbt and scala required by the project and download them if necessary.
Sample usage: create a new project using a snapshot version of sbt as well as a snapshot version of scala, then run the sbt "about" command.
% sbt -v -sbt-snapshot -210 -sbt-create about
Detected sbt version 0.11.3-SNAPSHOT
sbt snapshot is 0.11.3-20111207-052114
# Executing command line:
java
-XX:+CMSClassUnloadingEnabled
-Xms1536m
-Xmx1536m
-XX:MaxPermSize=384m
-XX:ReservedCodeCacheSize=192m
-Dfile.encoding=UTF8
-jar
/r/sbt-extras/.lib/0.11.3-SNAPSHOT/sbt-launch.jar
"set resolvers in ThisBuild += ScalaToolsSnapshots"
"++ 2.10.0-SNAPSHOT"
about
[info] Loading global plugins from /Users/paulp/.sbt/plugins
[info] Set current project to default-71999b (in build file:/Users/paulp/Desktop/new/)
[info] Reapplying settings...
[info] Set current project to default-71999b (in build file:/Users/paulp/Desktop/new/)
Setting version to 2.10.0-SNAPSHOT
[info] Set current project to default-71999b (in build file:/Users/paulp/Desktop/new/)
[info] This is sbt 0.11.3-20111207-052114
[info] The current project is {file:/Users/paulp/Desktop/new/}default-71999b
[info] The current project is built against Scala 2.10.0-SNAPSHOT
[info] sbt, sbt plugins, and build definitions are using Scala 2.9.1
Current -help output:
Usage: sbt [options]
-h | -help print this message
-v | -verbose this runner is chattier
-d | -debug set sbt log level to debug
-no-colors disable ANSI color codes
-sbt-create start sbt even if current directory contains no sbt project
-sbt-dir <path> path to global settings/plugins directory (default: ~/.sbt)
-sbt-boot <path> path to shared boot directory (default: ~/.sbt/boot in 0.11 series)
-ivy <path> path to local Ivy repository (default: ~/.ivy2)
-mem <integer> set memory options (default: 1536, which is -Xms1536m -Xmx1536m -XX:MaxPermSize=384m -XX:ReservedCodeCacheSize=192m)
-no-share use all local caches; no sharing
-offline put sbt in offline mode
-jvm-debug <port> Turn on JVM debugging, open at the given port.
# sbt version (default: from project/build.properties if present, else latest release)
-sbt-version <version> use the specified version of sbt
-sbt-jar <path> use the specified jar as the sbt launcher
-sbt-rc use an RC version of sbt
-sbt-snapshot use a snapshot version of sbt
# scala version (default: latest release)
-28 use 2.8.2
-29 use 2.9.1
-210 use 2.10.0-SNAPSHOT
-scala-home <path> use the scala build at the specified directory
-scala-version <version> use the specified version of scala
# java version (default: java from PATH, currently java version "1.6.0_29")
-java-home <path> alternate JAVA_HOME
# jvm options and output control
JAVA_OPTS environment variable, if unset uses "-Dfile.encoding=UTF8"
SBT_OPTS environment variable, if unset uses "-XX:+CMSClassUnloadingEnabled"
.sbtopts if this file exists in the sbt root, it is prepended to the runner args
-Dkey=val pass -Dkey=val directly to the java runtime
-J-X pass option -X directly to the java runtime (-J is stripped)
In the case of duplicated or conflicting options, the order above
shows precedence: JAVA_OPTS lowest, command line options highest.
Native Packages
This project also includes native packages to run SBT for
- Windows
- RedHat (rpm)
- Debian (deb)
- Homebrew (coming soon!)
Locations for download to be available soon.