feat: add options command

docs/1_usage.md

@@ -40,13 +40,21 @@ Learn how to ReVanced CLI.
    revanced-patches.jar
   ```
 
-- ### ⚙️ Supply options to patches using ReVanced CLI
-
-  Some patches provide options. Currently, ReVanced CLI will generate and consume an `options.json` file at the location that is specified in `-o`. If the option is not specified, the options file will be generated in the current working directory.
+- ### ⚙️ Generate options from patches using ReVanced CLI
+
+  Some patches accept options.
+
+- ```bash
+  java -jar revanced-cli.jar options \
+   --overwrite \
+   --update \
+   revanced-patches.jar
+  ```
 
-  The options file contains all options from supplied patch bundles.
+  > **Note**: A default `options.json` file will be automatically generated, if it does not exist 
+  without any need of intervention.
 
-  > **Note**: The `options.json` file will be generated at the first time you use ReVanced CLI to patch an APK file for now. This will be changed in the future.
+  ```bash
 
 - ### 💉 Use ReVanced CLI to patch an APK file but install without root permissions
 

src/main/kotlin/app/revanced/cli/command/Main.kt

@@ -33,7 +33,8 @@ object CLIVersionProvider : IVersionProvider {
     subcommands = [
         ListPatchesCommand::class,
         PatchCommand::class,
-        UninstallCommand::class
+        UninstallCommand::class,
+        OptionsCommand::class,
     ]
 )
 internal object Main

src/main/kotlin/app/revanced/cli/command/OptionsCommand.kt

@@ -0,0 +1,50 @@
+package app.revanced.cli.command
+
+import app.revanced.patcher.PatchBundleLoader
+import app.revanced.utils.Options
+import app.revanced.utils.Options.setOptions
+import picocli.CommandLine
+import picocli.CommandLine.Help.Visibility.ALWAYS
+import java.io.File
+
+@CommandLine.Command(
+    name = "options",
+    description = ["Generate options file from patches"],
+)
+internal object OptionsCommand : Runnable {
+    @CommandLine.Parameters(
+        description = ["Paths to patch bundles"],
+        arity = "1..*"
+    )
+    lateinit var patchBundles: Array<File>
+
+    @CommandLine.Option(
+        names = ["-p", "--path"],
+        description = ["Path to patch options JSON file"],
+        showDefaultValue = ALWAYS
+    )
+    var path: File = File("options.json")
+
+    @CommandLine.Option(
+        names = ["-o", "--overwrite"],
+        description = ["Overwrite existing options file"],
+        showDefaultValue = ALWAYS
+    )
+    var overwrite: Boolean = false
+
+    @CommandLine.Option(
+        names = ["-u", "--update"],
+        description = ["Update existing options by adding missing and removing non-existent options"],
+        showDefaultValue = ALWAYS
+    )
+    var update: Boolean = false
+
+    override fun run() = if (!path.exists() || overwrite)
+        with(PatchBundleLoader.Jar(*patchBundles)) {
+            if (update) setOptions(path, logger)
+
+            Options.serialize(this, prettyPrint = true)
+                .let(path::writeText)
+        }
+    else logger.error("Options file already exists, use --override to override it")
+}