Sbt autocomplete interacts poorly with windows

[Katrix]

Trying to autocomplete scalafixAll --files=coreShared, when a folder exists called coreShared produces an exception. Filling out the next part manually (coreShared\\src) does not autocomplete at all

sep. 27, 2023 10:51:50 A.M. org.jline.utils.Log logr
INFO: Error while finding completion candidates
java.nio.file.InvalidPathException: Trailing char < > at index 10: coreShared
        at java.base/sun.nio.fs.WindowsPathParser.normalize(WindowsPathParser.java:191)
        at java.base/sun.nio.fs.WindowsPathParser.parse(WindowsPathParser.java:153)
        at java.base/sun.nio.fs.WindowsPathParser.parse(WindowsPathParser.java:77)
        at java.base/sun.nio.fs.WindowsPath.parse(WindowsPath.java:92)
        at java.base/sun.nio.fs.WindowsFileSystem.getPath(WindowsFileSystem.java:229)
        at java.base/java.nio.file.Path.of(Path.java:147)
        at java.base/java.nio.file.Paths.get(Paths.java:69)
        at scalafix.internal.sbt.ScalafixCompletions$AbsolutePathCompleter$1$.mkBase(ScalafixCompletions.scala:58)
        at scalafix.internal.sbt.ScalafixCompletions$AbsolutePathExamples$1.withAddedPrefix(ScalafixCompletions.scala:52)
        at scalafix.internal.sbt.ScalafixCompletions$AbsolutePathExamples$1.withAddedPrefix(ScalafixCompletions.scala:45)
        at sbt.internal.util.complete.ParserWithExamples.derive(Parser.scala:870)
        at sbt.internal.util.complete.MapParser.derive(Parser.scala:771)
        at sbt.internal.util.complete.Filter.derive(Parser.scala:783)
        at sbt.internal.util.complete.TokenStart.derive(Parser.scala:810)
        at sbt.internal.util.complete.MapParser.derive(Parser.scala:771)
        at sbt.internal.util.complete.OnFailure.derive(Parser.scala:683)
        at sbt.internal.util.complete.HomParser.derive(Parser.scala:707)
        at sbt.internal.util.complete.MapParser.derive(Parser.scala:771)
        at sbt.internal.util.complete.Repeat.derive(Parser.scala:945)
        at sbt.internal.util.complete.MapParser.derive(Parser.scala:771)
        at sbt.internal.util.complete.ParserSeq.$anonfun$derive$3(Parser.scala:738)
        at scala.collection.immutable.List.map(List.scala:293)
        at sbt.internal.util.complete.ParserSeq.derive(Parser.scala:738)
        at sbt.internal.util.complete.MapParser.derive(Parser.scala:771)
        at sbt.internal.util.complete.MatchedString.derive(Parser.scala:796)
        at sbt.internal.util.complete.And.derive(Parser.scala:826)
        at sbt.internal.util.complete.HomParser.derive(Parser.scala:707)
        at sbt.internal.util.complete.MapParser.derive(Parser.scala:771)
        at sbt.internal.util.complete.And.derive(Parser.scala:826)
        at sbt.internal.util.complete.SeqParser.derive(Parser.scala:694)
        at sbt.internal.util.complete.ParserMain.derive1(Parser.scala:497)
        at sbt.internal.util.complete.ParserMain.derive1$(Parser.scala:496)
        at sbt.internal.util.complete.Parser$.derive1(Parser.scala:139)
        at sbt.internal.util.complete.ParserMain.$anonfun$apply$1(Parser.scala:493)
        at sbt.internal.util.complete.ParserMain.$anonfun$apply$1$adapted(Parser.scala:493)
        at scala.collection.IndexedSeqOptimized.foldLeft(IndexedSeqOptimized.scala:60)
        at scala.collection.IndexedSeqOptimized.foldLeft$(IndexedSeqOptimized.scala:68)
        at scala.collection.immutable.StringOps.foldLeft(StringOps.scala:33)
        at sbt.internal.util.complete.ParserMain.apply(Parser.scala:493)
        at sbt.internal.util.complete.ParserMain.apply$(Parser.scala:492)
        at sbt.internal.util.complete.Parser$.apply(Parser.scala:139)
        at sbt.internal.util.complete.BindParser.$anonfun$completions$3(Parser.scala:749)
        at sbt.internal.util.complete.Completions.$anonfun$flatMap$2(Completions.scala:29)
        at scala.collection.TraversableLike.$anonfun$flatMap$1(TraversableLike.scala:293)
        at scala.collection.immutable.HashSet$HashSet1.foreach(HashSet.scala:335)
        at scala.collection.immutable.HashSet$HashTrieSet.foreach(HashSet.scala:1111)
        at scala.collection.immutable.HashSet$HashTrieSet.foreach(HashSet.scala:1111)
        at scala.collection.immutable.HashSet$HashTrieSet.foreach(HashSet.scala:1111)
        at scala.collection.TraversableLike.flatMap(TraversableLike.scala:293)
        at scala.collection.TraversableLike.flatMap$(TraversableLike.scala:290)
        at scala.collection.AbstractTraversable.flatMap(Traversable.scala:108)
        at sbt.internal.util.complete.Completions.$anonfun$flatMap$1(Completions.scala:29)
        at sbt.internal.util.complete.Completions$$anon$1.get$lzycompute(Completions.scala:43)
        at sbt.internal.util.complete.Completions$$anon$1.get(Completions.scala:43)
        at sbt.internal.util.complete.Completions.$anonfun$$plus$plus$1(Completions.scala:21)
        at sbt.internal.util.complete.Completions$$anon$1.get$lzycompute(Completions.scala:43)
        at sbt.internal.util.complete.Completions$$anon$1.get(Completions.scala:43)
        at sbt.internal.util.complete.Completions.$anonfun$flatMap$1(Completions.scala:29)
        at sbt.internal.util.complete.Completions$$anon$1.get$lzycompute(Completions.scala:43)
        at sbt.internal.util.complete.Completions$$anon$1.get(Completions.scala:43)
        at sbt.internal.util.LineReader$$anon$1.complete(LineReader.scala:49)
        at org.jline.reader.impl.LineReaderImpl.doComplete(LineReaderImpl.java:4412)
        at org.jline.reader.impl.LineReaderImpl.doComplete(LineReaderImpl.java:4378)
        at org.jline.reader.impl.LineReaderImpl.expandOrComplete(LineReaderImpl.java:4317)
        at org.jline.reader.impl.LineReaderImpl$1.apply(LineReaderImpl.java:3809)
        at org.jline.reader.impl.LineReaderImpl.readLine(LineReaderImpl.java:679)
        at org.jline.reader.impl.LineReaderImpl.readLine(LineReaderImpl.java:468)
        at sbt.internal.util.LineReader$$anon$2.$anonfun$readLine$6(LineReader.scala:130)
        at scala.Option.getOrElse(Option.scala:189)
        at sbt.internal.util.LineReader$$anon$2.$anonfun$readLine$4(LineReader.scala:130)
        at sbt.internal.util.Terminal.withRawInput(Terminal.scala:146)
        at sbt.internal.util.Terminal.withRawInput$(Terminal.scala:144)
        at sbt.internal.util.Terminal$TerminalImpl.withRawInput(Terminal.scala:948)
        at sbt.internal.util.LineReader$$anon$2.readLine(LineReader.scala:130)
        at sbt.internal.ui.UITask$Reader$$anon$1.readLine(UITask.scala:71)
        at sbt.internal.ui.UITask.impl$1(UITask.scala:35)
        at sbt.internal.ui.UITask.run(UITask.scala:38)
        at sbt.internal.ui.UITask.run$(UITask.scala:33)
        at sbt.internal.ui.UITask$AskUserTask.run(UITask.scala:110)
        at sbt.internal.ui.UserThread$$anon$1.run(UserThread.scala:39)

[bjaglin]

Thanks for the report!

Support for autocomplete is not tested on Windows... It seems that there has been some previous discussions, but no follow up on that specific topic.

I do not own a Windows machine, so debugging this might me hard through the CI. Is there any chance you could try to run the SkipWindows-tagged test from sbt-scalafix locally and get a hint?