MISC: enhance code step 2 (runApt)

app/src/main/java/io/neoterm/frontend/floating/TerminalDialog.kt

@@ -11,28 +11,24 @@ import io.neoterm.frontend.session.shell.client.BasicSessionCallback
 import io.neoterm.frontend.session.shell.client.BasicViewClient
 import io.neoterm.utils.Terminals
 
+typealias DialogSessionFinished = (TerminalDialog, TerminalSession?) -> Unit
+
 /**
  * @author kiva
  */
 class TerminalDialog(val context: Context) {
-
-  interface SessionFinishedCallback {
-    fun onSessionFinished(dialog: TerminalDialog, finishedSession: TerminalSession?)
-  }
-
-  private var termWindowView = WindowTermView(context)
-  private var terminalSessionCallback: BasicSessionCallback
+  private val termWindowView = WindowTermView(context)
+  private val terminalSessionCallback: BasicSessionCallback
   private var dialog: AlertDialog? = null
   private var terminalSession: TerminalSession? = null
-  private var sessionFinishedCallback: SessionFinishedCallback? = null
+  private var sessionFinishedCallback: DialogSessionFinished? = null
   private var cancelListener: DialogInterface.OnCancelListener? = null
 
   init {
     termWindowView.setTerminalViewClient(BasicViewClient(termWindowView.terminalView))
-
     terminalSessionCallback = object : BasicSessionCallback(termWindowView.terminalView) {
       override fun onSessionFinished(finishedSession: TerminalSession?) {
-        sessionFinishedCallback?.onSessionFinished(this@TerminalDialog, finishedSession)
+        sessionFinishedCallback?.let { it(this@TerminalDialog, finishedSession) }
         super.onSessionFinished(finishedSession)
       }
     }
@@ -74,7 +70,7 @@ class TerminalDialog(val context: Context) {
     return this
   }
 
-  fun onFinish(finishedCallback: SessionFinishedCallback): TerminalDialog {
+  fun onFinish(finishedCallback: DialogSessionFinished): TerminalDialog {
     this.sessionFinishedCallback = finishedCallback
     return this
   }

app/src/main/java/io/neoterm/ui/pm/PackageManagerActivity.kt

@@ -16,12 +16,9 @@ import androidx.core.view.MenuItemCompat
 import androidx.recyclerview.widget.LinearLayoutManager
 import com.github.wrdlbrnft.sortedlistadapter.SortedListAdapter
 import io.neoterm.R
-import io.neoterm.backend.TerminalSession
 import io.neoterm.component.pm.*
 import io.neoterm.frontend.component.ComponentManager
 import io.neoterm.frontend.config.NeoPreference
-import io.neoterm.frontend.config.NeoTermPath
-import io.neoterm.frontend.floating.TerminalDialog
 import io.neoterm.ui.pm.adapter.PackageAdapter
 import io.neoterm.ui.pm.model.PackageModel
 import io.neoterm.ui.pm.utils.StringDistance
@@ -57,9 +54,9 @@ class PackageManagerActivity : AppCompatActivity(), SearchView.OnQueryTextListen
         AlertDialog.Builder(this@PackageManagerActivity)
           .setTitle(model.packageInfo.packageName)
           .setMessage(model.getPackageDetails(this@PackageManagerActivity))
-          .setPositiveButton(R.string.install, { _, _ ->
+          .setPositiveButton(R.string.install) { _, _ ->
             installPackage(model.packageInfo.packageName)
-          })
+          }
           .setNegativeButton(android.R.string.no, null)
           .show()
       }
@@ -74,21 +71,9 @@ class PackageManagerActivity : AppCompatActivity(), SearchView.OnQueryTextListen
     refreshPackageList()
   }
 
-  private fun installPackage(packageName: String?) {
-    if (packageName != null) {
-      TerminalDialog(this@PackageManagerActivity)
-        .execute(
-          NeoTermPath.APT_BIN_PATH,
-          arrayOf("apt", "install", "-y", packageName)
-        )
-        .onFinish(object : TerminalDialog.SessionFinishedCallback {
-          override fun onSessionFinished(dialog: TerminalDialog, finishedSession: TerminalSession?) {
-            dialog.setTitle(getString(R.string.done))
-          }
-        })
-        .imeEnabled(true)
-        .show("Installing $packageName")
-      Toast.makeText(this, R.string.installing_topic, Toast.LENGTH_LONG).show()
+  private fun installPackage(packageName: String?) = packageName?.let {
+    runApt("install", "-y", it, autoClose = false) {
+      it.onSuccess { it.setTitle(getString(R.string.done)) }
     }
   }
 
@@ -115,18 +100,15 @@ class PackageManagerActivity : AppCompatActivity(), SearchView.OnQueryTextListen
     val sourceManager = ComponentManager.getComponent<PackageComponent>().sourceManager
     val sourceList = sourceManager.getAllSources()
 
+    val items = sourceList.map { "${it.url} :: ${it.repo}" }.toTypedArray()
+    val selection = sourceList.map { it.enabled }.toBooleanArray()
     AlertDialog.Builder(this)
       .setTitle(R.string.pref_package_source)
-      .setMultiChoiceItems(sourceList.map { "${it.url} :: ${it.repo}" }.toTypedArray(),
-        sourceList.map { it.enabled }.toBooleanArray(), { dialog, which, isChecked ->
-          sourceList[which].enabled = isChecked
-        })
-      .setPositiveButton(android.R.string.yes, { _, _ ->
-        changeSourceInternal(sourceManager, sourceList)
-      })
-      .setNeutralButton(R.string.new_source, { _, _ ->
-        changeSourceToUserInput(sourceManager)
-      })
+      .setMultiChoiceItems(items, selection) { _, which, isChecked ->
+        sourceList[which].enabled = isChecked
+      }
+      .setPositiveButton(android.R.string.yes) { _, _ -> changeSourceInternal(sourceManager, sourceList) }
+      .setNeutralButton(R.string.new_source) { _, _ -> changeSourceToUserInput(sourceManager) }
       .setNegativeButton(android.R.string.no, null)
       .show()
   }
@@ -145,7 +127,7 @@ class PackageManagerActivity : AppCompatActivity(), SearchView.OnQueryTextListen
       .setTitle(R.string.pref_package_source)
       .setView(view)
       .setNegativeButton(android.R.string.no, null)
-      .setPositiveButton(android.R.string.yes, { _, _ ->
+      .setPositiveButton(android.R.string.yes) { _, _ ->
         val url = urlEditor.text.toString()
         val repo = repoEditor.text.toString()
         var errored = false
@@ -163,7 +145,7 @@ class PackageManagerActivity : AppCompatActivity(), SearchView.OnQueryTextListen
         val source = urlEditor.text.toString()
         sourceManager.addSource(source, repo, true)
         postChangeSource(sourceManager)
-      })
+      }
       .show()
   }
 
@@ -179,30 +161,15 @@ class PackageManagerActivity : AppCompatActivity(), SearchView.OnQueryTextListen
     executeAptUpdate()
   }
 
-  private fun executeAptUpdate() = runApt("update", null) { exitStatus, dialog ->
-    if (exitStatus != 0) {
-      dialog.setTitle(getString(R.string.error))
-      return@runApt
-    }
-    Toast.makeText(this, R.string.apt_update_ok, Toast.LENGTH_SHORT).show()
-    dialog.dismiss()
-    refreshPackageList()
+  private fun executeAptUpdate() = runApt("update") {
+    it.onSuccess { refreshPackageList() }
   }
 
-  private fun executeAptUpgrade() = runApt("update", null) { exitStatus, dialog ->
-    if (exitStatus != 0) {
-      dialog.setTitle(getString(R.string.error))
-      return@runApt
-    }
-    dialog.dismiss()
-
-    runApt("upgrade", arrayOf("-y")) aptUpgrade@{ exitStatus, dialog ->
-      if (exitStatus != 0) {
-        dialog.setTitle(getString(R.string.error))
-        return@aptUpgrade
+  private fun executeAptUpgrade() = runApt("update") { update ->
+    update.onSuccess {
+      runApt("upgrade", "-y") {
+        it.onSuccess { Toast.makeText(this, R.string.apt_upgrade_ok, Toast.LENGTH_SHORT).show() }
       }
-      Toast.makeText(this, R.string.apt_upgrade_ok, Toast.LENGTH_SHORT).show()
-      dialog.dismiss()
     }
   }
 

app/src/main/java/io/neoterm/ui/settings/GeneralSettingsActivity.kt

@@ -40,17 +40,12 @@ class GeneralSettingsActivity : BasePreferenceActivity() {
       .setTitle(getString(R.string.shell_not_found, shellName))
       .setMessage(R.string.shell_not_found_message)
       .setPositiveButton(R.string.install) { _, _ ->
-        runApt("install", arrayOf("-y", shellName)) { exitStatus, dialog ->
-          if (exitStatus == 0) {
-            dialog.dismiss()
-            postChangeShell(shellName)
-          } else dialog.setTitle(getString(R.string.error))
+        runApt("install", "-y", shellName) {
+          it.onSuccess { postChangeShell(shellName) }
         }
       }
       .setNegativeButton(android.R.string.no, null)
-      .setOnDismissListener {
-        postChangeShell(currentShell)
-      }
+      .setOnDismissListener { postChangeShell(currentShell) }
       .show()
   }
 
@@ -59,8 +54,7 @@ class GeneralSettingsActivity : BasePreferenceActivity() {
 
   override fun onOptionsItemSelected(item: MenuItem?): Boolean {
     when (item?.itemId) {
-      android.R.id.home ->
-        finish()
+      android.R.id.home -> finish()
     }
     return super.onOptionsItemSelected(item)
   }

app/src/main/java/io/neoterm/ui/setup/SetupActivity.kt

@@ -234,11 +234,11 @@ class SetupActivity : AppCompatActivity(), View.OnClickListener, ResultListener
     }
   }
 
-  private fun executeAptUpdate() = runApt("update")
-    .onSuccess { executeAptUpgrade() }
-    .onFailure { Toast.makeText(this, R.string.error, Toast.LENGTH_SHORT).show() }
+  private fun executeAptUpdate() = runApt("update") {
+    it.onSuccess { executeAptUpgrade() }
+  }
 
-  private fun executeAptUpgrade() = runApt("upgrade", "-y")
-    .onSuccess { finish() }
-    .onFailure { Toast.makeText(this, R.string.error, Toast.LENGTH_SHORT).show() }
+  private fun executeAptUpgrade() = runApt("upgrade", "-y") {
+    it.onSuccess { finish() }
+  }
 }

app/src/main/java/io/neoterm/utils/utils.kt

@@ -6,7 +6,7 @@ import android.net.Uri
 import android.os.Environment
 import android.provider.DocumentsContract
 import android.provider.MediaStore
-import io.neoterm.backend.TerminalSession
+import io.neoterm.R
 import io.neoterm.frontend.config.NeoTermPath
 import io.neoterm.frontend.floating.TerminalDialog
 import java.io.File
@@ -49,23 +49,23 @@ fun Context.extractAssetsDir(dirName: String, extractDir: String) {
   }
 }
 
-fun Context.runApt(subCommand: String, vararg extraArgs: String): Result<TerminalDialog> = runAsyncCatching {
-  val args = arrayOf(NeoTermPath.APT_BIN_PATH, subCommand, *extraArgs)
-  TerminalDialog(this)
-    .onFinish(object : TerminalDialog.SessionFinishedCallback {
-      override fun onSessionFinished(dialog: TerminalDialog, finishedSession: TerminalSession?) {
-        val exit = finishedSession?.exitStatus ?: 1
-        if (exit == 0) {
-          dialog.dismiss()
-          throw SuccessResult(dialog)
-        }
-        else throw RuntimeException()
-      }
-    })
-    .imeEnabled(true)
-    .execute(NeoTermPath.APT_BIN_PATH, args)
-    .show("apt $subCommand")
-}
+fun Context.runApt(
+  subCommand: String, vararg extraArgs: String,
+  autoClose: Boolean = true, block: (Result<TerminalDialog>) -> Unit
+) = TerminalDialog(this)
+  .execute(NeoTermPath.APT_BIN_PATH, arrayOf(NeoTermPath.APT_BIN_PATH, subCommand, *extraArgs))
+  .imeEnabled(true)
+  .onFinish { dialog, session ->
+    val exit = session?.exitStatus ?: 1
+    if (exit == 0) {
+      if (autoClose) dialog.dismiss()
+      block(Result.success(dialog))
+    } else {
+      dialog.setTitle(getString(R.string.error))
+      block(Result.failure(RuntimeException()))
+    }
+  }
+  .show("apt $subCommand")
 
 /**
  * Get a file path from a Uri. This will get the the path for Storage Access
@@ -121,15 +121,3 @@ private fun getDataColumn(context: Context, uri: Uri, selection: String?, select
 private fun isExternalStorageDocument(uri: Uri) = "com.android.externalstorage.documents" == uri.authority
 private fun isDownloadsDocument(uri: Uri) = "com.android.providers.downloads.documents" == uri.authority
 private fun isMediaDocument(uri: Uri) = "com.android.providers.media.documents" == uri.authority
-
-data class SuccessResult(val data: Any) : RuntimeException()
-
-inline fun <reified R> runAsyncCatching(block: () -> Unit): Result<R> = try {
-  block()
-  Result.failure(IllegalStateException())
-} catch (s: SuccessResult) {
-  if (s.data is R) Result.success(s.data)
-  else Result.failure(ClassCastException())
-} catch (e: Throwable) {
-  Result.failure(e)
-}