sbt, the interactive build tool
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Ethan Atkins df5f9ae3cb Support commands in continuous
I had previously not though there was much reason to support commands in
continuous builds. This was primarily because there were a number of
questions regarding semantics. Commands cannot have fileInputs
specifically assigned to them because they don't have an associated
scope. They also can arbitrarily modify state so what is the expectation
when running ~foo where foo is a command that, for example, replaces
itself. I settled on the following semantics:

1) Commands run in a continuous build cannot modify the sbt execution
   state which is to say that the state that is returned by continuous
   is the same that was passed in (unless a reload occurred or we exited
   the build with an exception)

2) Any global watchTriggers or fileInputs apply to a watched command.
   They automatically inherit any fileInputs that are queried when
   running tasks in a command. So, for example, ~+compile does what
   you'd expect.

The implementation is fairly straightforward. If we can successfully
parse a command, but we cannot parse a scopedKey from it, we assign it a
private ScopedKey. When computing the watch settings for that key, we
will select the global settings through delegation. This is how it picks
up the global watchTriggers.

To run the command, I had to rework the task evaluation portion because
a command may return a state with additional commands to run. The cross
build command works this way. We recursively run all of the commands
starting with the original until we run out of commands to run. As part
of this work, I was able to remove the three argument version of
Command.processCommand that I'd previously added to support my old
approach to evaluating commands. This was a nice bonus.

I added scripted tests that check that global watchTriggers are picked
up and that commands that delegate to a command that uses fileInputs
automatically pick up those inputs during the watch. I also added a test
that approximates the ~+compile use case and ensures that the failure
semantics are what we expect and that the task runs for all defined
scala versions.
2019-06-01 20:10:26 -07:00
.github Also drop the checkbox in the issue template 2019-05-31 08:54:43 +01:00
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 Support commands in continuous 2019-06-01 20:10:26 -07:00
main-actions/src Bump io 2019-05-02 14:33:01 -07:00
main-command/src Reduce idle cpu usage 2019-05-31 09:34:04 -07:00
main-settings/src Drop the remaining TupleSyntax usage 2019-05-29 14:43:18 +01:00
notes Implement sequential[B](tasks: Seq[Initialize[Task[B]]]) and remove useless comment outs 2018-09-19 20:54:18 -04:00
project lm-coursier-shaded 1.1.0-M14-3 2019-05-29 23:48:05 -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 Support commands in continuous 2019-06-01 20:10:26 -07:00
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 Support commands in continuous 2019-06-01 20:10:26 -07:00
src/main/conscript 1.2.0 2018-07-30 00:56:36 -04:00
tasks Don't automatically die on OOM: metaspace 2019-05-28 09:53:36 -07:00
tasks-standard Remove unused Task#mapTask 2019-05-29 14:43:42 +01:00
testing Catch NoClassDefFoundErrors in tests 2019-05-28 09:53:35 -07:00
vscode-sbt-scala bump npm dependencies 2019-05-28 14:30:31 -04:00
zinc-lm-integration/src Add new ClassLoaderCache implementation 2019-05-28 09:53:35 -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 Consolidate travis builds 2019-05-28 15:10:18 -07:00
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 Merge pull request #4740 from dwijnand/remove-unused-Task-mapTask 2019-05-29 17:12:50 -04:00
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.
  • 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.