Assertion Error while loading JAR from URL: "contains invalid '/'"

[sankalpgambhir]

Version(s)
1.5.0 originally, but tested on main as well (my first time building scala-cli, so take it with a pinch of salt)

Describe the bug
When trying to provide a fallback JAR URL for a dependency, scala-cli fails to process the URL correctly, raising a "contains invalid '/'" assertion failure.

To Reproduce
Use the following snippet (the dep url is taken from scala-cli docs here):

//> using dep tabby:tabby:0.2.3,url=https://github.com/bjornregnell/tabby/releases/download/v0.2.3/tabby_3-0.2.3.jar

println("Hello, scala-cli")

> scala-cli ../dep-test.sc   
Error: java.lang.AssertionError: module name //github.com/bjornregnell/tabby/releases/download/v0.2.3/tabby_3-0.2.3.jar contains invalid '/'
For more details, please see '$HOME/.cache/scalacli/virtual-projects/c9/project-0073d09a/.scala-build/stacktraces/1728042792-8010526352619289440.log'

The JAR does exist at this URL. Using my own dep and URL also does not work.

Expected behaviour
The JAR should be correctly imported from the given URL.

[sankalpgambhir]

Additionally, here is the generated stack trace (also attached):

Stack trace

java.lang.AssertionError: module name //github.com/bjornregnell/tabby/releases/download/v0.2.3/tabby_3-0.2.3.jar contains invalid '/'
  coursier.core.Validation$.$anonfun$assertValid$1(Definitions.scala:421)
  scala.util.Either.fold(Either.scala:198)
  coursier.core.Validation$.assertValid(Definitions.scala:421)
  coursier.core.Module.<init>(Definitions.scala:42)
  coursier.core.Module$.apply(Definitions.scala:81)
  coursier.package$Module$.apply(package.scala:52)
  scala.build.internal.Util$ModuleOps$.toCs$extension(Util.scala:45)
  scala.build.internal.Util$DependencyOps$.toCs$extension(Util.scala:66)
  scala.build.internal.Util$ScalaDependencyOps$.toCs$extension(Util.scala:87)
  scala.build.internal.Util$ScalaDependencyOps$.toCs$extension(Util.scala:91)
  scala.build.internal.Util$PositionedScalaDependencyOps$.$anonfun$2(Util.scala:107)
  scala.build.Positioned.map(Positioned.scala:15)
  scala.build.internal.Util$PositionedScalaDependencyOps$.toCs$extension(Util.scala:107)
  scala.build.Artifacts$.coursierDeps$$anonfun$1(Artifacts.scala:518)
  scala.collection.immutable.List.map(List.scala:251)
  scala.collection.immutable.List.map(List.scala:79)
  scala.build.Artifacts$.coursierDeps(Artifacts.scala:519)
  scala.build.Artifacts$.fetchAnyDependenciesWithResult$$anonfun$1(Artifacts.scala:571)
  scala.build.EitherCps$Helper.apply(EitherCps.scala:19)
  scala.build.Artifacts$.fetchAnyDependenciesWithResult(Artifacts.scala:607)
  scala.build.Artifacts$.apply$$anonfun$1(Artifacts.scala:371)
  scala.build.EitherCps$Helper.apply(EitherCps.scala:19)
  scala.build.Artifacts$.apply(Artifacts.scala:467)
  scala.build.options.BuildOptions.artifacts$$anonfun$1(BuildOptions.scala:468)
  scala.build.EitherCps$Helper.apply(EitherCps.scala:19)
  scala.build.options.BuildOptions.artifacts(BuildOptions.scala:471)
  scala.build.Build$.prepareBuild$$anonfun$1(Build.scala:1035)
  scala.build.EitherCps$Helper.apply(EitherCps.scala:19)
  scala.build.Build$.prepareBuild(Build.scala:1078)
  scala.build.Build$.buildOnce$$anonfun$1(Build.scala:1099)
  scala.build.EitherCps$Helper.apply(EitherCps.scala:19)
  scala.build.Build$.buildOnce(Build.scala:1145)
  scala.build.Build$.build$$anonfun$2(Build.scala:448)
  scala.build.EitherCps$Helper.apply(EitherCps.scala:19)
  scala.build.Build$.build(Build.scala:475)
  scala.build.Build$.doBuildScope$1$$anonfun$1(Build.scala:314)
  scala.build.EitherCps$Helper.apply(EitherCps.scala:19)
  scala.build.Build$.doBuildScope$1(Build.scala:317)
  scala.build.Build$.doBuild$1$$anonfun$1(Build.scala:319)
  scala.build.EitherCps$Helper.apply(EitherCps.scala:19)
  scala.build.Build$.doBuild$1(Build.scala:377)
  scala.build.Build$.buildScopes$1$$anonfun$1(Build.scala:381)
  scala.build.EitherCps$Helper.apply(EitherCps.scala:19)
  scala.build.Build$.buildScopes$1(Build.scala:408)
  scala.build.Build$.build$$anonfun$1(Build.scala:410)
  scala.build.EitherCps$Helper.apply(EitherCps.scala:19)
  scala.build.Build$.build(Build.scala:422)
  scala.build.Build$.build$$anonfun$3$$anonfun$1(Build.scala:590)
  scala.util.Either.flatMap(Either.scala:360)
  scala.build.compiler.ScalaCompilerMaker.withCompiler(ScalaCompilerMaker.scala:37)
  scala.build.compiler.ScalaCompilerMaker.withCompiler$(ScalaCompilerMaker.scala:9)
  scala.build.compiler.BloopCompilerMaker.withCompiler(BloopCompilerMaker.scala:14)
  scala.build.Build$.build$$anonfun$3(Build.scala:613)
  scala.build.EitherCps$Helper.apply(EitherCps.scala:19)
  scala.build.Build$.build(Build.scala:616)
  scala.cli.commands.run.Run$.runCommand(Run.scala:338)
  scala.cli.commands.default.Default.runCommand(Default.scala:61)
  scala.cli.commands.default.Default.runCommand(Default.scala:40)
  scala.cli.commands.ScalaCommand.run(ScalaCommand.scala:388)
  scala.cli.commands.ScalaCommand.run(ScalaCommand.scala:369)
  caseapp.core.app.CaseApp.main(CaseApp.scala:157)
  scala.cli.commands.ScalaCommand.main(ScalaCommand.scala:354)
  caseapp.core.app.CommandsEntryPoint.main(CommandsEntryPoint.scala:169)
  scala.cli.ScalaCliCommands.main(ScalaCliCommands.scala:125)
  scala.cli.ScalaCli$.main0(ScalaCli.scala:296)
  scala.cli.ScalaCli$.main(ScalaCli.scala:119)
  scala.cli.ScalaCli.main(ScalaCli.scala)

scalacli-invalid-url-stack-trace.log

[sankalpgambhir]

Thanks to @SimonGuilloud for spotting that the following actually works with the example above, moving the dep from the file to the cli:

> scala-cli dep-test.sc --dependency "tabby:tabby:0.2.3,url=https://github.com/bjornregnell/tabby/releases/download/v0.2.3/tabby_3-0.2.3.jar"
Downloading 2 dependencies
Compiling project (Scala 3.5.0, JVM (17))
Compiled project (Scala 3.5.0, JVM (17))
Hello, scala-cli