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Releases: VirtusLab/scala-cli

v1.2.0

07 Mar 08:40
@Gedochao Gedochao
v1.2.0
251223e
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v1.2.0

Scala 3.3.3, 3.4.0, 2.13.13 & 2.12.19 support

This version of Scala CLI adds support for a whooping 4 new Scala versions, it's been busy these past few days!
The default version used when using the CLI will from now on be the Scala 3 Next version (3.4.0 as of this release).
Using the lts tag will now point to Scala 3.3.3.
The LTS is also the version used for building the internals of Scala CLI (although we now also cross-compile with 3.4.0).

scala-cli version
# Scala CLI version: 1.2.0
# Scala version (default): 3.4.0

Added by @Gedochao in #2772, #2736, #2755, #2753 and #2752

Remapping EsModule imports at link time with Scala.js

Given the following importMap.json file:

{
  "imports": {
    "@stdlib/linspace": "https://cdn.skypack.dev/@stdlib/linspace"
  }
}

It is now possible to remap the imports at link time with the jsEsModuleImportMap directive.

//> using jsEsModuleImportMap importMap.json
//> using jsModuleKind es
//> using jsMode fastLinkJS
//> using platform js

import scala.scalajs.js
import scala.scalajs.js.annotation.JSImport
import scala.scalajs.js.typedarray.Float64Array

object Foo {
  def main(args: Array[String]): Unit = {
    println(Array(-10.0, 10.0, 10).mkString(", "))
    println(linspace(0, 10, 10).mkString(", "))
  }
}

@js.native
@JSImport("@stdlib/linspace", JSImport.Default)
object linspace extends js.Object {
  def apply(start: Double, stop: Double, num: Int): Float64Array = js.native
}

The same can be achieved with the --js-es-module-import-map command line option.

scala-cli --power package RemappingEsModuleImports.scala --js --js-module-kind ESModule -o main.js --js-es-module-import-map importMap.json

Added by @Quafadas in #2737 and VirtusLab/scala-js-cli#47

Fixes

Enhancements

  • Add the ability to remap EsModule imports at link time by @Quafadas in #2737

Internal changes

  • Fix overeager Scala version docs tests by @Gedochao in #2750
  • Lock script wrapper tests on the internally used Scala 2.13 version by @Gedochao in #2754
  • Use Scala LTS as the default version while cross compiling all Scala 3 modules on both LTS & Next by @Gedochao in #2752
  • Explicitly set sonatype publishing to use the default cross Scala version by @Gedochao in #2757
  • Fix publishing of artifacts to include non-cross-compiled modules by @Gedochao in #2759
  • Run integration tests with both Scala 3 LTS & Next versions by @Gedochao in #2760

Documentation changes

Updates and maintenance

New Contributors

Full Changelog: v1.1.3...v1.2.0

Contributors

philwalk, spamegg1, and 5 other contributors
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v1.1.3

14 Feb 09:58
@Gedochao Gedochao
v1.1.3
f59e4f8
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v1.1.3

Support for LTS Scala version aliases

It is now possible to use lts and 3.lts as Scala version aliases in Scala CLI.
They refer to the latest LTS version of Scala (the 3.3.x line at the time of this release).

scala-cli run -S lts --with-compiler -e 'println(dotty.tools.dotc.config.Properties.simpleVersionString)'
# Compiling project (Scala 3.3.1, JVM (17))
# Compiled project (Scala 3.3.1, JVM (17))
# 3.3.1

Using the 2.lts, 2.13.lts & 2.12.lts aliases returns a meaningful error, too.

scala-cli run -S 2.lts -e 'println(scala.util.Properties.versionString)'                                 
# [error]  Invalid Scala version: 2.lts. There is no official LTS version for Scala 2.
# You can only choose one of the 3.x, 2.13.x, and 2.12.x. versions.
# The latest supported stable versions are 2.12.18, 2.13.12, 3.3.1.
# In addition, you can request compilation with the last nightly versions of Scala,
# by passing the 2.nightly, 2.12.nightly, 2.13.nightly, or 3.nightly arguments.
# Specific Scala 2 or Scala 3 nightly versions are also accepted.
# You can also request the latest Scala 3 LTS by passing lts or 3.lts.

Added by @kasiaMarek in #2710

--semanticdb-targetroot and --semanticdb-sourceroot options

It is now possible to set the SemanticDB target root and source root directories with unified syntax, independent of the target Scala and/or Java versions.

scala-cli compile src/semanticdb-example.sc --semanticdb-targetroot ./targetRootDir --semanticdb-sourceroot .

Added by @Gedochao in #2692

Fixes

Documentation changes

  • Add information about --preamble in assembly packaging documentation by @spacebanana420 in #2713
  • Back port of documentation changes to main by @github-actions in #2717
  • Documentation for creation of custom toolkit by @yadavan88 in #2715
  • Back port of documentation changes to main by @github-actions in #2718
  • Fix formatting in custom toolkit doc by @yadavan88 in #2719
  • Back port of documentation changes to main by @github-actions in #2720
  • Added info about repl with toolkit by @yadavan88 in #2721
  • Back port of documentation changes to main by @github-actions in #2723

Updates and maintenance

New Contributors

Full Changelog: v1.1.2...v1.1.3

Contributors

yadavan88, Gedochao, and 4 other contributors
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v1.1.2

17 Jan 09:06
@Gedochao Gedochao
v1.1.2
0421cd9
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v1.1.2

Support for Scala.js 1.15.0

This version adds Scala CLI support for Scala.js 1.15.0.
Added by @scala-steward in #2672 & @Gedochao in VirtusLab/scala-js-cli#43.

Fixes

  • Fix repeatable compiler options handling from the command line by @Gedochao in #2666
  • Fix script wrapper tests & script object wrapper using directive by @Gedochao in #2668
  • Prevent consecutive -language:* options from being ignored by @Gedochao in #2667
  • in FailedToStartServerException advice, include --power by @SethTisue in #2685

Documentation changes

  • Fix test.md by @MaciejG604 in #2679
  • Back port of documentation changes to main by @github-actions in #2681

Build and internal changes

  • Update release procedure steps for v1.1.x by @Gedochao in #2665
  • Tag GitHubTests.create secret as flaky on all Mac tests (including M1) by @Gedochao in #2677

Updates and maintenance

Full Changelog: v1.1.1...v1.1.2

Contributors

SethTisue, Gedochao, and 2 other contributors
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v1.1.1

10 Jan 12:42
@Gedochao Gedochao
v1.1.1
3d2a670
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v1.1.1

Deprecate Scala Toolkit latest version in favour of default

Using toolkits with the latest version is now deprecated and will cause a warning.
It will likely be removed completely in a future release.

scala-cli --toolkit latest -e 'println(os.pwd)'
# Using 'latest' for toolkit is deprecated, use 'default' to get more stable behaviour:
#  --toolkit default
# Compiling project (Scala 3.3.1, JVM (17))
# Compiled project (Scala 3.3.1, JVM (17))
# /home

It is now advised to either use an explicit toolkit version or rely on the new default alias.

scala-cli --toolkit default -e 'println(os.pwd)'
# Compiling project (Scala 3.3.1, JVM (17))
# Compiled project (Scala 3.3.1, JVM (17))
# /home

The default version for toolkits is tied to a particular Scala CLI version.
You can check which version is used by referring to Scala CLI help.

scala-cli version                 
# Scala CLI version: 1.1.1
# Scala version (default): 3.3.1
scala-cli run -h|grep toolkit         
#   --toolkit, --with-toolkit version|default  Add toolkit to classPath (not supported in Scala 2.12), 'default' version for Scala toolkit: 0.2.1, 'default' version for typelevel toolkit: 0.1.20

Added by @MaciejG604 in #2622

Enhancements

Fixes

  • Fallback to UTF-8 in setup-ide by @JD557 in #2599
  • Separate Scala REPL classpath from user dependencies by @Gedochao in #2607
  • Prevent resource directories from breaking sources hash by @Gedochao in #2654
  • Fix special handling for the -Xplugin-list compiler option by @Gedochao in #2635
  • Remove superfluous traits by @MaciejG604 in #2618
  • Prevent the toolkit latest deprecation warning from being logged more than once by @Gedochao in #2657

Documentation changes

  • Unify mentions of Java properties and link to the correct section of guides. by @MaciejG604 in #2603
  • Document script wrappers by @MaciejG604 in #2596
  • Shorten titles of cookbooks by @MaciejG604 in #2609
  • Add docs for bloop interaction by @MaciejG604 in #2608
  • Docs/java opts for compiler by @MaciejG604 in #2619
  • Add a subcategories layer for guides & cookbooks by @Gedochao in #2612
  • Merge documentations about proxy setup by @MaciejG604 in #2597
  • Update test framework versions by @mbovel in #2625
  • Back port of documentation changes to main by @github-actions in #2604
  • Back port of documentation changes to main by @github-actions in #2611
  • Back port of documentation changes to main by @github-actions in #2615
  • Back port of documentation changes to main by @github-actions in #2617
  • Back port of documentation changes to main by @github-actions in #2620

Build and internal changes

Updates and maintenance

New Contributors

Full Changelog: v1.1.0...v1.1.1

Contributors

mbovel, JD557, and 4 other contributors
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v1.1.0

29 Nov 16:10
@MaciejG604 MaciejG604
v1.1.0
9385014
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v1.1.0

Breaking update to Scala 2 scripts

Keep in mind that it ONLY applies to Scala 2! Scala 3 script wrappers are not affected!

Scala CLI now uses a different kind of script wrappers for Scala 2 by default, which support running background threads.
This has been introduces as an answer to the issue #2470, where a running a script in Scala 2 would end up in a deadlock due to background threads being run.
Also the change makes the Scala 2 scripts run significantly faster, as the code can be optimized due to not residing in the object's initialization clause.

However, the new solution brings some incompatibilities with the old behaviour:

  • main classes are now named the same as the file they are defined in, they do not have the '_sc' suffix anymore, so any calls like:
scala-cli foo.sc bar.sc --main-class foo_sc

should be replaced with

scala-cli foo.sc bar.sc --main-class foo
  • it is impossible to access the contents of a script named main.sc from another script, any references to the script object main will result in a compilation error.
println(main.somethingDefinedInMainScript)

Will result in the following compilation error:

[error] ./foo.sc:2:11
[error] missing argument list for method main in trait App
[error] Unapplied methods are only converted to functions when a function type is expected.
[error] You can make this conversion explicit by writing `main _` or `main(_)` instead of `main`.

When main.sc is passed as argument together with other scripts, a warning will be displayed:

[warn]  Script file named 'main.sc' detected, keep in mind that accessing it from other scripts is impossible due to a clash of `main` symbols

Added by @MaciejG604 in #2556

"Drive relative" paths on Windows

Scala CLI now correctly recognizes "drive relative" paths on Windows, so paths like /foo/bar will be treated as relative from the root of the current drive - e.g. C:\foo\bar.
This allows for compatibility of programs referencing paths with e.g. //> using file /foo/bar with Windows.

Added by @philwalk in #2516

UX improvements

Enhancements

  • Default to publish repository configured for local machine when infering publish.ci.repository by @MaciejG604 in #2571
  • Skip validation for default Scala versions, add build test by @MaciejG604 in #2576

Fixes

Documentation changes

  • Add a doc on Windows anti-malware submission procedure by @Gedochao in #2546
  • Fix list of licenses URL by @JD557 in #2552
  • Fix Windows secrets path in the documentation by @JD557 in #2561
  • Update the pgp-pair section of publish setup docs by @MaciejG604 in #2565
  • Back port of documentation changes to main by @github-actions in #2569
  • Document --python flag by @MaciejG604 in #2574
  • Document publishing process configuration by @MaciejG604 in #2580

Build and internal changes

Updates and maintenance

New Contributors

Full Changelog: v1.0.6...v1.1.0

Contributors

JD557, philwalk, and 5 other contributors
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v1.0.6

09 Nov 13:50
@Gedochao Gedochao
v1.0.6
7be704c
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v1.0.6

Scala CLI won't default to the system JVM if it's not supported anymore

If your JAVA_HOME environment variable has been pointing to a JVM that is no longer supported by Scala CLI (so anything below 17, really), you may have run into an error like this one with Scala CLI v1.0.5:

scala-cli --power bloop exit 
# Stopped Bloop server.  
export JAVA_HOME=$(cs java-home --jvm zulu:8)
scala-cli -e 'println(System.getProperty("java.version"))'                
# Starting compilation server
# Error: bloop.rifle.FailedToStartServerExitCodeException: Server failed with exit code 1
# For more details, please see '/var/folders/5n/_ggj7kk93czdt_n0jzrk8s780000gn/T/1343202731019130640/.scala-build/stacktraces/1699527280-9858975811713766588.log'
# Running
#   scala-cli --power bloop output
# might give more details.

This is because we no longer support JVM <17 with Scala CLI v1.0.5, but we still have been defaulting to whatever JVM was defined in JAVA_HOME. As a result, Bloop has been failing to start when running with, say, JAVA_HOME pointing to Java 8.

This is no longer the case. Scala CLI will now automatically download Java 17 for Bloop in such a situation (and still use the JVM from JAVA_HOME for running the code, while Bloop runs on 17).

scala-cli --power bloop exit 
# Stopped Bloop server.  
export JAVA_HOME=$(cs java-home --jvm zulu:8)
scala-cli -e 'println(System.getProperty("java.version"))'                
# Starting compilation server
# Compiling project (Scala 3.3.1, JVM (8))
# Compiled project (Scala 3.3.1, JVM (8))
# 1.8.0_392

Added by @tgodzik in #2508.

Other changes

Fixes

  • Fix --watch failing on invalid PathWatchers.Event & skip wonky tests on Mac CI by @Gedochao in #2515
  • bugfix: Don't try to always get system jvm first by @tgodzik in #2508

Documentation changes

  • Back port of documentation changes to main by @github-actions in #2522
  • add cookbook about Emacs integration by @ag91 in #2506

Build and internal changes

Updates and maintenance

New Contributors

Full Changelog: v1.0.5...v1.0.6

Contributors

tgodzik, lolgab, and 5 other contributors
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v1.0.5

25 Oct 13:24
@Gedochao Gedochao
v1.0.5
ecf3779
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v1.0.5

What's new

Accept --power from anywhere

The --power flag used to be a launcher option, which means it used to only be accepted when passed before the sub-command name. Now, it can be passed anywhere in the command line.

scala-cli --power package --help
scala-cli package --power --help
scala-cli package --help --power

Added by @MaciejG604 in #2399

Offline mode (experimental)

It is now possible to run Scala CLI in offline mode for the cases when you don't want the runner
to make any network requests for whatever reason.
This changes Coursier's cache policy to LocalOnly, preventing it from downloading anything.

scala-cli . --offline

Of course, this means that you will have to have all the dependencies relevant to your build already downloaded and available in your local cache.
Reasonable fallbacks will be used where possible, e.g. the Scala compiler may be used instead of Bloop if Bloop isn't available.

Added by @MaciejG604 in #2404

Shorter install script link

Scala CLI's install script is now available behind a conveniently shorter web address:
https://scala-cli.virtuslab.org/get

Added by @Gedochao in #2450

The fix sub-command (experimental)

The fix sub-command is a new addition to Scala CLI. It allows to scan your project for using directives and extract them into the project.scala file placed in the project root directory.
This allows to easily fix warnings tied to having using directives present in multiple files.

scala-cli fix . --power

Added by @MaciejG604 in #2309

Support for building static & shared libraries with Scala Native (experimental)

You can now use the --native-target option to build Scala Native projects as static or shared libraries.

scala-cli package . --power --native-target static
scala-cli package . --power --native-target dynamic

Added by @keynmol in #2196

Print platform version

Platform version is now always logged during compilation.

scala-cli compile .
# Compiling project (Scala 3.3.1, JVM (17))
# Compiled project (Scala 3.3.1, JVM (17))
scala-cli compile . --js
# Compiling project (Scala 3.3.1, Scala.js 1.13.2)
# Compiled project (Scala 3.3.1, Scala.js 1.13.2)
scala-cli compile . --native
# Compiling project (Scala 3.3.1, Scala Native 0.4.16)
# Compiled project (Scala 3.3.1, Scala Native 0.4.16)

Added by @Gedochao in #2465

Other changes

Enhancements

Fixes

Documentation changes

Build and internal changes

  • Add test for actionable diagnostics from compiler by @MaciejG604 in #2327
  • Pin the versions of Github CI runners by @MaciejG604 in #2370
  • Remove bloop timeouts in tests by @MaciejG604 in #2407
  • Add post-update hook for reference doc generation by @MaciejG604 in #2406
  • Add tests which check availability of scalafmt native launcher for de… by @lwronski in #2418
  • Default to a Scala version for REPL if there are no Scala artifacts. by @trilleplay in #2431
  • Remove unused snippet checker by @lwronski in #2423
  • Allow to override internal & user default Scala versions for mill builds by @Gedochao in #2461
  • NIT: Refactor: Rely on global --power option where able in cli commands by @Gedochao in #2480

Updates and maintenance

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Contributors

keynmol, JD557, and 10 other contributors
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v1.0.4

09 Aug 20:13
@lwronski lwronski
v1.0.4
6fd1e43
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v1.0.4

Hotfix for buildTarget/jvmRunEnvironment in BSP

We've addressed a bug that surfaced when opening your ScalaCLI projects in Metals or IntelliJ. If you encountered the following log:

2023.08.09 15:48:34 INFO  BSP server: Caused by: java.lang.IllegalArgumentException: Type ch.epfl.scala.bsp4j.JvmMainClass is instantiated reflectively but was never registered. Register the type by adding "unsafeAllocated" for the type in reflect-config.json.
2023.08.09 15:48:34 INFO  BSP server: 	at com.oracle.svm.core.graal.snippets.SubstrateAllocationSnippets.instanceHubErrorStub(SubstrateAllocationSnippets.java:309)
2023.08.09 15:48:34 INFO  BSP server: 	at [email protected]/sun.misc.Unsafe.allocateInstance(Unsafe.java:864)
2023.08.09 15:48:34 INFO  BSP server: 	... 36 more

those logs should no longer appear. Thanks to @lwronski for providing the fix in #2342.

What's Changed

  • Update scala-cli.sh launcher for 1.0.3 by @github-actions in #2338
  • Add missing note to release notes about rename parameter by @lwronski in #2340
  • Back port of documentation changes to main by @github-actions in #2341
  • Fix - support jvmRunEnvironment request for native launcher of scala-cli by @lwronski in #2342
  • 1.0.4 release notes by @lwronski in #2343

Full Changelog: v1.0.3...v1.0.4

Contributors

lwronski
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v1.0.3

08 Aug 17:47
@lwronski lwronski
v1.0.3
83bc7bc
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v1.0.3

What's new

Access project configuration with the new BuildInfo

BuildInfo access your project's build configuration within your Scala code. This feature automatically gathers and generates build information about your project, making project details instantly accessible at runtime.

To generate BuildInfo, either use the --build-info command line option or include the //> using buildInfo directive in your code.

Upon activation, a BuildInfo object becomes accessible on your project's classpath. To use it, simply add the following import into your code:

import scala.cli.build.BuildInfo

This BuildInfo object encapsulates information such as the Scala version used, target platform, main class, scalac options, dependencies, and much more for both Main and Test scopes. The generation ensures up-to-date configuration data from both the console options and using directives in your project's sources.

Added by @MaciejG604 in #2249.

CompileOnly Dependencies

Now, users can declare dependencies that are exclusively included at the compile time. These dependencies are added to the classpath during compilation, but won't be included when the application is run, keeping your runtime environment lightweight.

To declare such a dependency:

  1. Via the using directive:
//> using compileOnly.dep "com.github.plokhotnyuk.jsoniter-scala::jsoniter-scala-macros:2.23.2"
  1. Via the command line:
scala-cli Hello.scala --compile-dep "com.github.plokhotnyuk.jsoniter-scala::jsoniter-scala-macros:2.23.2"

Added by @alexarchambault and @lwronski in #2299, Thanks!

Set globally Java properties

Scala CLI allows users to globally set Java properties for its launcher using the config command. This will simplify the JVM properties management process, eliminating the need to pass these properties with each scala-cli execution.

To set global Java properties execute the following command:

scala-cli config java.properties Djavax.net.ssl.trustStore=cacerts Dfoo=bar2

When modifying Java properties, remember that you must redefine all of them. It's not possible to update just a single property. Essentially, each time you use the config command for Java properties, you replace the entire list of properties.

Whenever overwriting existing Java properties Scala CLI will let you know what was the previous value and in interactive mode ensure that you are ok with replacing them.

Added by @lwronski in #2317, Thanks!

Rename parameter for publish command

We've updated the --version parameter for the publish command. Now, when specifying the project version, use --project-version instead.

scala-cli publish --project-version 1.0.3 ...

Other changes

  • Add custom exception and throw it when node not found in the path by @lwronski in #2323
  • Skip reading ide-options-v2.json if doesn't exist to avoid throwing a… by @lwronski in #2333
  • Skip setting release flag when user pass directly -release or -java-o… by @lwronski in #2321
  • Prevent downloading Java 17 when running a REPL without sources by @lwronski in #2305
  • Extract JAVA_HOME from /usr/libexec/java_home for Mac by @lwronski in #2304
  • Bump case-app, add names limit to HelpFormat, move some name aliases, add test by @MaciejG604 in #2280
  • Build info with compute version @MaciejG604 in #2310

Fixes

  • Fix - install ps, which is necessary for starting Bloop by @lwronski in #2332
  • Load virtual data as byte arrays without encoding using UTF-8 by @lwronski in #2313
  • Accept directive packageType native when using native platform by @lwronski in #2311
  • Ignore url query params @MaciejG604 in #2334

Documentation changes

Build and internal changes

Updates and maintenance

Full Changelog: v1.0.2...v1.0.3

Contributors

alexarchambault, ckipp01, and 2 other contributors
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v1.0.2

11 Jul 13:29
@lwronski lwronski
v1.0.2
8bb97d9
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v1.0.2

What's new

This release brings enhancements to Scala CLI:

  • WinGet installation for Windows users
  • better navigation with improved build target names
  • introducing new command for Giter8 project generation
  • easier JVM properties management with .scalaopts file support.

The release also includes numerous bug fixes, updates, and new contributors.

Installation via WinGet on Windows

Scala CLI can now be installed via WinGet on Windows, with
a command such as

winget install virtuslab.scalacli

Added by @mimoguz in #2239, Thanks!

Enhanced build target names

Now, the build target name will be derived from the workspace directory that contains it, making it easier for users to
navigate between different projects within a multi-root workspace. Instead of a build target named as project_XYZ-XYZ,
you will now see the name like workspace_XYZ-XYZ, where workspace refers to the name of the workspace directory.

.
├── scripts
│   ├── .scala-build
│   │   └── scripts_59f2159dd5
│   └── one.sc
├── skan
│   ├── .scala-build
│   │   └── skan_88b44a2858
│   └── main.scala
└── skan.code-workspace

Added by @MaciejG604 in #2201

Introducing 'new' command for Giter8 project generation

Giter8 is a project templating tool for Scala, and its integration within Scala CLI offers efficient way to set up new
projects. By using the new command, users can generate new projects based on predefined or custom templates.

For example:

scala-cli --power new VirtusLab/scala-cli.g8

Added by @zetashift in #2202, Thanks!

Loading Java Properties from .scalaopts into ScalaCLI launcher

ScalaCLI allows to load Java properties into scala-cli launcher directly from a .scalaopts file located in your
current working directory. This will simplify the JVM properties management process, eliminating the need to pass these
properties with each scala-cli execution.

For instance, if -Djavax.net.ssl.trustStore=cacerts and -Dfoo2=bar2 are defined within your .scalaopts file, these
values will be loaded into scala-cli launcher:

$ cat .scalaopts
-Djavax.net.ssl.trustStore=cacerts
-Dfoo2=bar2
$ scala-cli run ...

Added by @lwronski in #2267

Please be aware that ScalaCLI will only process Java properties that it recognizes from the .scalaopts file. Other JVM
options, such as -Xms1024m, will be ignored as they can't be used within native image, and users will be alerted with
a warning message when such non-compliant options are passed.

Other changes

Fixes

Documentation changes

Build and internal changes

Updates and maintenance

New Contributors

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