Make commands classes instead of objects (#946)

Making these classes caused native-image to statically initialize
them at build time, which included CLI argument default values
(like working dir).

This turns them back into classes.

Co-authored-by: Islon Scherer <islonscherer@gmail.com>

pkl-cli/src/main/kotlin/org/pkl/cli/Main.kt

@@ -22,5 +22,5 @@ import org.pkl.commons.cli.cliMain
 
 /** Main method of the Pkl CLI (command-line evaluator and REPL). */
 internal fun main(args: Array<String>) {
-  cliMain { RootCommand.main(args) }
+  cliMain { RootCommand().main(args) }
 }

pkl-cli/src/main/kotlin/org/pkl/cli/commands/AnalyzeCommand.kt

@@ -25,7 +25,7 @@ import org.pkl.cli.CliImportAnalyzerOptions
 import org.pkl.commons.cli.commands.ModulesCommand
 import org.pkl.commons.cli.commands.single
 
-object AnalyzeCommand :
+class AnalyzeCommand :
   NoOpCliktCommand(
     name = "analyze",
     help = "Commands related to static analysis",

pkl-cli/src/main/kotlin/org/pkl/cli/commands/DownloadPackageCommand.kt

@@ -27,7 +27,7 @@ import org.pkl.commons.cli.commands.ProjectOptions
 import org.pkl.commons.cli.commands.single
 import org.pkl.core.packages.PackageUri
 
-object DownloadPackageCommand :
+class DownloadPackageCommand :
   BaseCommand(
     name = "download-package",
     helpLink = helpLink,

pkl-cli/src/main/kotlin/org/pkl/cli/commands/EvalCommand.kt

@@ -24,7 +24,7 @@ import org.pkl.cli.CliEvaluatorOptions
 import org.pkl.commons.cli.commands.ModulesCommand
 import org.pkl.commons.cli.commands.single
 
-object EvalCommand :
+class EvalCommand :
   ModulesCommand(name = "eval", help = "Render pkl module(s)", helpLink = helpLink) {
   private val outputPath: String? by
     option(

pkl-cli/src/main/kotlin/org/pkl/cli/commands/ProjectCommand.kt

@@ -33,18 +33,18 @@ import org.pkl.commons.cli.commands.single
 
 private const val NEWLINE = '\u0085'
 
-object ProjectCommand :
+class ProjectCommand :
   NoOpCliktCommand(
     name = "project",
     help = "Run commands related to projects",
     epilog = "For more information, visit $helpLink",
   ) {
   init {
-    subcommands(ResolveCommand, PackageCommand)
+    subcommands(ResolveCommand(), PackageCommand())
   }
 }
 
-object ResolveCommand :
+class ResolveCommand :
   BaseCommand(
     name = "resolve",
     helpLink = helpLink,
@@ -74,7 +74,7 @@ object ResolveCommand :
   }
 }
 
-object PackageCommand :
+class PackageCommand :
   BaseCommand(
     name = "package",
     helpLink = helpLink,

pkl-cli/src/main/kotlin/org/pkl/cli/commands/ReplCommand.kt

@@ -21,8 +21,7 @@ import org.pkl.cli.CliRepl
 import org.pkl.commons.cli.commands.BaseCommand
 import org.pkl.commons.cli.commands.ProjectOptions
 
-object ReplCommand :
-  BaseCommand(name = "repl", help = "Start a REPL session", helpLink = helpLink) {
+class ReplCommand : BaseCommand(name = "repl", help = "Start a REPL session", helpLink = helpLink) {
   private val projectOptions by ProjectOptions()
 
   override fun run() {

pkl-cli/src/main/kotlin/org/pkl/cli/commands/RootCommand.kt

@@ -23,7 +23,7 @@ import org.pkl.core.Release
 
 internal val helpLink = "${Release.current().documentation.homepage}pkl-cli/index.html#usage"
 
-object RootCommand :
+class RootCommand :
   NoOpCliktCommand(
     name = "pkl",
     printHelpOnEmptyArgs = true,
@@ -41,13 +41,13 @@ object RootCommand :
     }
 
     subcommands(
-      EvalCommand,
-      ReplCommand,
-      ServerCommand,
-      TestCommand,
-      ProjectCommand,
-      DownloadPackageCommand,
-      AnalyzeCommand,
+      EvalCommand(),
+      ReplCommand(),
+      ServerCommand(),
+      TestCommand(),
+      ProjectCommand(),
+      DownloadPackageCommand(),
+      AnalyzeCommand(),
     )
   }
 }

pkl-cli/src/main/kotlin/org/pkl/cli/commands/ServerCommand.kt

@@ -19,7 +19,7 @@ import com.github.ajalt.clikt.core.CliktCommand
 import org.pkl.cli.CliServer
 import org.pkl.commons.cli.CliBaseOptions
 
-object ServerCommand :
+class ServerCommand :
   CliktCommand(
     name = "server",
     help = "Run as a server that communicates over standard input/output",

pkl-cli/src/main/kotlin/org/pkl/cli/commands/TestCommand.kt

@@ -26,7 +26,7 @@ import org.pkl.commons.cli.commands.BaseOptions
 import org.pkl.commons.cli.commands.ProjectOptions
 import org.pkl.commons.cli.commands.TestOptions
 
-object TestCommand :
+class TestCommand :
   BaseCommand(name = "test", help = "Run tests within the given module(s)", helpLink = helpLink) {
   val modules: List<URI> by
     argument(name = "<modules>", help = "Module paths or URIs to evaluate.")