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@Gedochao Gedochao released this 27 Jun 14:01
· 3 commits to main since this release
v1.4.0
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Learn about vigilant mode.

Running the REPL with the test scope included

It is now possible to start the Scala REPL with access to the test scope.
To do so, it's enough to pass the --test flag with the repl sub-command.

package example
object ReplTestScopeExample {
  def message: String = "calling test scope from repl"
}
scala-cli repl ReplTestScopeExample.test.scala --test
# Compiling project (test, Scala 3.4.2, JVM (17))
# Compiled project (test, Scala 3.4.2, JVM (17))
# Welcome to Scala 3.4.2 (17, Java OpenJDK 64-Bit Server VM).
# Type in expressions for evaluation. Or try :help.
#                                                                                                                                          
# scala> example.ReplTestScopeExample.message
# val res0: String = calling test scope from repl
#                                                                                                                                          
# scala>

Added by @Gedochao in #2971.

The using jvm directives are now always respected

Formerly, if the build server (Bloop) was running on an older JVM than the one specified in a using jvm directive, the directive wouldn't be respected. We now restart the build server based on both the directive and the respective command line option (--jvm).

//> using jvm 22
//> using javacOpt --enable-preview -Xlint:preview
//> using javaOpt --enable-preview
//> using mainClass Simple

void main() {
    System.out.println("Hello from Java 22");
}

Added by @kasiaMarek in #2972

Support for Scala Native 0.5.4

This Scala CLI version adds support for Scala Native 0.5.4.
Native platform builds will now use 0.5.4 as the default version.

scala-cli -e 'println("Hello, Scala Native!")' --native
# Compiling project (Scala 3.4.2, Scala Native 0.5.4)
# Compiled project (Scala 3.4.2, Scala Native 0.5.4)
# [info] Linking (multithreadingEnabled=true, disable if not used) (902 ms)
# [info] Discovered 882 classes and 5384 methods after classloading
# [info] Checking intermediate code (quick) (37 ms)
# [info] Multithreading was not explicitly enabled - initial class loading has not detected any usage of system threads. Multithreading support will be disabled to improve performance.
# [info] Linking (multithreadingEnabled=false) (292 ms)
# [info] Discovered 499 classes and 2497 methods after classloading
# [info] Checking intermediate code (quick) (10 ms)
# [info] Discovered 478 classes and 1912 methods after optimization
# [info] Optimizing (debug mode) (445 ms)
# [info] Produced 9 LLVM IR files
# [info] Generating intermediate code (353 ms)
# [info] Compiling to native code (1619 ms)
# [info] Linking with [pthread, dl]
# [info] Linking native code (immix gc, none lto) (137 ms)
# [info] Postprocessing (0 ms)
# [info] Total (3753 ms)
# Hello, Scala Native!

Added by @scala-steward in #2982.

Scala Toolkit 0.4.0 & 0.3.0 defaults

This Scala CLI version treats Scala Toolkit 0.4.0 as the default version under most circumstances.

//> using toolkit default
@main def main() = println(os.pwd)

This unlocks the Scala Toolkit to be used with Scala Native 0.5.x.

scala-cli -e 'println(os.pwd)' --toolkit default --native   
# Compiling project (Scala 3.4.2, Scala Native 0.5.4)
# Compiled project (Scala 3.4.2, Scala Native 0.5.4)
# [info] Linking (multithreadingEnabled=true, disable if not used) (1051 ms)
# [info] Discovered 1047 classes and 6745 methods after classloading
# [info] Checking intermediate code (quick) (46 ms)
# [info] Multithreading was not explicitly enabled - initial class loading has not detected any usage of system threads. Multithreading support will be disabled to improve performance.
# [info] Linking (multithreadingEnabled=false) (543 ms)
# [info] Discovered 880 classes and 5417 methods after classloading
# [info] Checking intermediate code (quick) (15 ms)
# [info] Discovered 857 classes and 4238 methods after optimization
# [info] Optimizing (debug mode) (651 ms)
# [info] Produced 9 LLVM IR files
# [info] Generating intermediate code (663 ms)
# [info] Compiling to native code (1621 ms)
# [info] Linking with [pthread, dl]
# [info] Linking native code (immix gc, none lto) (81 ms)
# [info] Postprocessing (0 ms)
# [info] Total (4542 ms)

Scala Native 0.4.x has been dropped in Scala Toolkit 0.4.0 and above, so the last version supporting it, 0.3.0 (and lower), will now make the build default to Scala Native 0.4.17.

scala-cli -e 'println(os.pwd)' --toolkit 0.3.0 --native                          
# [warn] Scala Toolkit Version(0.3.0) does not support Scala Native 0.5.3, 0.4.17 should be used instead.
# [warn] Scala Native default version 0.5.3 is not supported in this build. Using 0.4.17 instead.
# Compiling project (Scala 3.4.2, Scala Native 0.4.17)
# Compiled project (Scala 3.4.2, Scala Native 0.4.17)
# [info] Linking (900 ms)
# [info] Checking intermediate code (quick) (63 ms)
# [info] Discovered 888 classes and 5298 methods
# [info] Optimizing (debug mode) (836 ms)
# [info] Generating intermediate code (620 ms)
# [info] Produced 10 files
# [info] Compiling to native code (1860 ms)
# [info] Linking with [pthread, dl]
# [info] Total (4406 ms)
# ~/scala-cli-tests

The troublesome case is when Scala Native 0.4.x is passed explicitly, while the Scala Toolkit is set to the default.
Scala CLI does not currently support downgrading the Scala Toolkit in this case, and fails the build.

scala-cli -e 'println(os.pwd)' --toolkit default --native --native-version 0.4.17
# Downloading 4 dependencies and 2 internal dependencies
# [error]  Error downloading org.scala-lang:toolkit-test_native0.4_3:0.4.0
# [error]   not found: ~/.ivy2/local/org.scala-lang/toolkit-test_native0.4_3/0.4.0/ivys/ivy.xml
# [error]   not found: https://repo1.maven.org/maven2/org/scala-lang/toolkit-test_native0.4_3/0.4.0/toolkit-test_native0.4_3-0.4.0.pom
# [error]   not found: ~/Library/Caches/ScalaCli/local-repo/1.4.0/org.scala-lang/toolkit-test_native0.4_3/0.4.0/ivys/ivy.xml
# [error]   No fallback URL found
# [error] COMMAND_LINE
# [error]  Error downloading org.scala-lang:toolkit_native0.4_3:0.4.0
# [error]   not found: ~/.ivy2/local/org.scala-lang/toolkit_native0.4_3/0.4.0/ivys/ivy.xml
# [error]   not found: https://repo1.maven.org/maven2/org/scala-lang/toolkit_native0.4_3/0.4.0/toolkit_native0.4_3-0.4.0.pom
# [error]   not found: ~/Library/Caches/ScalaCli/local-repo/1.4.0/org.scala-lang/toolkit_native0.4_3/0.4.0/ivys/ivy.xml
# [error]   No fallback URL found
# [error] COMMAND_LINE

Added by @Gedochao in #2955

Features

  • Include test scope in the REPL when the --test flag is passed by @Gedochao in #2971

Fixes

  • Fix BSP IllegalArgumentException when loading project in Metals by @joan38 in #2950
  • Don't check for newer CLI versions when the --cli-version launcher param is passed (v1.4.0 and onwards, only) by @Gedochao in #2957
  • fix: start bloop with jvm version from using directives for JVMs > 17 by @kasiaMarek in #2972

Documentation changes

Internal changes

Updates

New Contributors

Full Changelog: v1.3.2...v1.4.0

Contributors

joan38, Gedochao, and 3 other contributors
Assets 22
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