feat: improve logging

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

@@ -1,7 +1,8 @@
 package app.revanced.cli.command
 
+import app.revanced.cli.logging.impl.DefaultCliLogger
 import app.revanced.cli.patcher.Patcher
-import app.revanced.cli.patcher.PatcherLogger
+import app.revanced.cli.patcher.logging.impl.PatcherLogger
 import app.revanced.cli.signing.Signing
 import app.revanced.cli.signing.SigningOptions
 import app.revanced.patcher.PatcherOptions
@@ -25,6 +26,8 @@ private class CLIVersionProvider : IVersionProvider {
     versionProvider = CLIVersionProvider::class
 )
 internal object MainCommand : Runnable {
+    val logger = DefaultCliLogger()
+
     @ArgGroup(exclusive = false, multiplicity = "1")
     lateinit var args: Args
 
@@ -91,7 +94,7 @@ internal object MainCommand : Runnable {
     override fun run() {
         if (args.lArgs?.listOnly == true) {
             for (patchBundlePath in args.patchBundles) for (patch in JarPatchBundle(patchBundlePath).loadPatches()) {
-                println("[available] ${patch.patchName}: ${patch.description}")
+                logger.info("${patch.patchName}: ${patch.description}")
             }
             return
         }
@@ -134,13 +137,10 @@ internal object MainCommand : Runnable {
 
         if (args.clean) File(args.cacheDirectory).deleteRecursively()
 
-        adb?.let {
-            println("[deploying]")
-            it.deploy()
-        }
+        adb?.deploy()
 
         if (args.clean && args.deploy != null) Files.delete(outputFile.toPath())
 
-        println("[done]")
+        logger.info("Finished")
     }
 }

src/main/kotlin/app/revanced/cli/logging/CliLogger.kt

@@ -0,0 +1,8 @@
+package app.revanced.cli.logging
+
+internal interface CliLogger {
+     fun error(msg: String)
+     fun info(msg: String)
+     fun trace(msg: String)
+     fun warn(msg: String)
+}

src/main/kotlin/app/revanced/cli/logging/impl/DefaultCliLogger.kt

@@ -0,0 +1,20 @@
+package app.revanced.cli.logging.impl
+
+import app.revanced.cli.command.MainCommand
+import app.revanced.cli.logging.CliLogger
+import java.util.logging.Logger
+
+internal class DefaultCliLogger(
+    private val logger: Logger = Logger.getLogger(MainCommand::javaClass.name)
+) : CliLogger {
+    companion object {
+        init {
+            System.setProperty("java.util.logging.SimpleFormatter.format", "%4\$s: %5\$s %n")
+        }
+    }
+
+    override fun error(msg: String) = logger.severe(msg)
+    override fun info(msg: String) = logger.info(msg)
+    override fun trace(msg: String) = logger.finest(msg)
+    override fun warn(msg: String) = logger.warning(msg)
+}

src/main/kotlin/app/revanced/cli/patcher/Patcher.kt

@@ -1,6 +1,7 @@
 package app.revanced.cli.patcher
 
 import app.revanced.cli.command.MainCommand.args
+import app.revanced.cli.command.MainCommand.logger
 import app.revanced.utils.filesystem.ZipFileSystemUtils
 import app.revanced.utils.patcher.addPatchesFiltered
 import app.revanced.utils.patcher.applyPatchesVerbose
@@ -30,12 +31,14 @@ internal object Patcher {
         ZipFileSystemUtils(inputFile, output).use { fileSystem ->
             // replace all dex files
             result.dexFiles.forEach {
+                logger.info("Writing dex file ${it.name}")
                 fileSystem.write(it.name, it.dexFileInputStream.readAllBytes())
             }
 
             // inputFile being null implies resource patching being disabled
             if (inputFile != null) {
                 // write resources
+                logger.info("Writing resources")
                 fileSystem.writeInput()
                 fileSystem.uncompress(*result.doNotCompress!!.toTypedArray())
             }

src/main/kotlin/app/revanced/cli/patcher/logging/impl/PatcherLogger.kt

@@ -0,0 +1,13 @@
+package app.revanced.cli.patcher.logging.impl
+
+import app.revanced.cli.logging.impl.DefaultCliLogger
+import java.util.logging.Logger
+
+internal object PatcherLogger : app.revanced.patcher.logging.Logger{
+    private val logger = DefaultCliLogger(Logger.getLogger(app.revanced.patcher.Patcher::javaClass.name))
+
+    override fun error(msg: String) = logger.error(msg)
+    override fun info(msg: String) = logger.info(msg)
+    override fun warn(msg: String)= logger.warn(msg)
+    override fun trace(msg: String)= logger.trace(msg)
+}

src/main/kotlin/app/revanced/cli/signing/Signing.kt

@@ -1,6 +1,7 @@
 package app.revanced.cli.signing
 
 import app.revanced.cli.command.MainCommand.args
+import app.revanced.cli.command.MainCommand.logger
 import app.revanced.utils.signing.Signer
 import app.revanced.utils.signing.align.ZipAligner
 import java.io.File
@@ -12,15 +13,16 @@ object Signing {
         val signedOutput = cacheDirectory.resolve("${outputFile.nameWithoutExtension}_signed.apk")
 
         // align the inputFile and write to alignedOutput
-        println("[aligning]")
+        logger.info("Aligning ${inputFile.name}")
         ZipAligner.align(inputFile, alignedOutput)
         // sign the alignedOutput and write to signedOutput
         // the reason is, in case the signer fails
         // it does not damage the output file
-        println("[signing]")
+        logger.info("Signing ${alignedOutput.name}")
         Signer(signingOptions).signApk(alignedOutput, signedOutput)
 
         // afterwards copy over the file to the output
+        logger.info("Copying ${signedOutput.name} to ${outputFile.name}")
         signedOutput.copyTo(outputFile, true)
     }
 }

src/main/kotlin/app/revanced/utils/adb/Adb.kt

@@ -1,5 +1,6 @@
 package app.revanced.utils.adb
 
+import app.revanced.cli.command.MainCommand.logger
 import se.vidstige.jadb.JadbConnection
 import se.vidstige.jadb.JadbDevice
 import se.vidstige.jadb.managers.PackageManager
@@ -29,8 +30,12 @@ internal class Adb(
 
     internal fun deploy() {
         if (modeInstall) {
+            logger.info("Installing without mounting")
+
             PackageManager(device).install(file)
         } else {
+            logger.info("Installing by mounting")
+
             // push patched file
             device.copy(Constants.PATH_INIT_PUSH, file)
 
@@ -91,10 +96,10 @@ internal class Adb(
                 }
                 break
             } catch (e: Exception) {
-                throw RuntimeException("An error occurred while monitoring state of app", e)
+                throw RuntimeException("An error occurred while monitoring the state of app", e)
             }
         }
-        println("App closed, continuing.")
+        logger.info("Stopped logging because the app was closed")
         process.destroy()
         executor.shutdown()
     }

src/main/kotlin/app/revanced/utils/patcher/Patcher.kt

@@ -2,6 +2,7 @@ package app.revanced.utils.patcher
 
 import app.revanced.cli.command.MainCommand
 import app.revanced.cli.command.MainCommand.args
+import app.revanced.cli.command.MainCommand.logger
 import app.revanced.patcher.Patcher
 import app.revanced.patcher.data.base.Data
 import app.revanced.patcher.extensions.PatchExtensions.compatiblePackages
@@ -22,33 +23,40 @@ fun Patcher.addPatchesFiltered(
             val compatiblePackages = patch.compatiblePackages
             val patchName = patch.patchName
 
-            val prefix = "[skipped] $patchName"
+            val prefix = "Skipping $patchName"
 
             val args = MainCommand.args.pArgs!!
 
             if (excludePatches && args.excludedPatches.contains(patchName)) {
-                println("$prefix: Explicitly excluded.")
+                logger.info("$prefix: Explicitly excluded")
                 return@patch
             } else if (!patch.include) {
-                println("$prefix: Implicitly excluded.")
+                logger.info("$prefix: Explicitly excluded")
                 return@patch
             }
 
-            if (compatiblePackages == null) println("$prefix: Missing compatibility annotation. Continuing.")
+            if (compatiblePackages == null) logger.warn("$prefix: Missing compatibility annotation. Continuing.")
             else {
                 if (!compatiblePackages.any { it.name == packageName }) {
-                    println("$prefix: Incompatible package.")
+                    logger.warn("$prefix: Incompatible with $packageName. This patch is only compatible with ${
+                        compatiblePackages.joinToString(
+                            ", "
+                        ) { it.name }
+                    }")
                     return@patch
                 }
 
                 if (!(args.experimental || compatiblePackages.any { it.versions.isEmpty() || it.versions.any { version -> version == packageVersion } })) {
-                    println("$prefix: The package version is $packageVersion and is incompatible.")
+                    val compatibleWith = compatiblePackages.map { _package ->
+                        "${_package.name}: ${_package.versions.joinToString(", ")}"
+                    }.joinToString(";")
+                    logger.warn("$prefix: Incompatible with version $packageVersion. This patch is only compatible with version $compatibleWith")
                     return@patch
                 }
             }
 
+            logger.trace("Adding $patchName")
             includedPatches.add(patch)
-            println("[added] $patchName")
         }
         this.addPatches(includedPatches)
     }
@@ -57,16 +65,16 @@ fun Patcher.addPatchesFiltered(
 fun Patcher.applyPatchesVerbose() {
     this.applyPatches().forEach { (patch, result) ->
         if (result.isSuccess) {
-            println("[success] $patch")
+            logger.info("$patch succeeded")
             return@forEach
         }
-        println("[error] $patch:")
+        logger.error("$patch failed:")
         result.exceptionOrNull()!!.printStackTrace()
     }
 }
 
 fun Patcher.mergeFiles() {
-    this.addFiles(args.pArgs!!.mergeFiles) {
-        println("[merged] ${it.name}")
+    this.addFiles(args.pArgs!!.mergeFiles) { file ->
+        logger.info("Merging $file")
     }
 }

src/main/kotlin/app/revanced/utils/signing/Signer.kt

@@ -1,5 +1,6 @@
 package app.revanced.utils.signing
 
+import app.revanced.cli.command.MainCommand.logger
 import app.revanced.cli.signing.SigningOptions
 import com.android.apksig.ApkSigner
 import org.bouncycastle.asn1.x500.X500Name
@@ -55,7 +56,7 @@ internal class Signer(
         // TODO: keystore should be saved securely
         val ks = File(signingOptions.keyStoreFilePath)
         if (!ks.exists()) newKeystore(ks) else {
-            println("[found] existing keystore: ${ks.nameWithoutExtension}")
+            logger.info("Found existing keystore: ${ks.nameWithoutExtension}")
         }
 
         val keyStore = KeyStore.getInstance("BKS", "BC")