Upgrade Android build to Gradle build system

The old Ant build system has been deprecated for a while and new development is focused on Gradle.
I also removed a hardcoded string that lint caught and moved the patch files to a subdirectory.
I left the JNI files in the root directory.

11 files changed, 681 insertions, 0 deletions

diff --git a/build/android/src/main/AndroidManifest.xml b/build/android/src/main/AndroidManifest.xml
new file mode 100644
index 000000000..df218fb33
--- /dev/null
+++ b/build/android/src/main/AndroidManifest.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+		package="net.minetest.minetest"
+		android:installLocation="auto">
+	<uses-feature android:glEsVersion="0x00010000" android:required="true"/>
+	<uses-permission android:name="android.permission.INTERNET" />
+	<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+	<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+	<application android:icon="@drawable/irr_icon"
+			android:label="${project}"
+			android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
+			android:allowBackup="true">
+		<activity android:name=".MtNativeActivity"
+				android:label="${project}"
+				android:launchMode="singleTask"
+				android:configChanges="orientation|keyboard|keyboardHidden|navigation"
+				android:screenOrientation="sensorLandscape"
+				android:clearTaskOnLaunch="true">
+			<intent-filter>
+				<action android:name="android.intent.action.MAIN" />
+				<category android:name="android.intent.category.LAUNCHER" />
+			</intent-filter>
+			<meta-data android:name="android.app.lib_name" android:value="minetest" />
+		</activity>
+		<activity android:name=".MinetestTextEntry"
+				android:theme="@style/Theme.Transparent"
+				android:excludeFromRecents="true">
+		</activity>
+		<activity android:name=".MinetestAssetCopy"
+				android:theme="@style/Theme.Transparent"
+				android:excludeFromRecents="true">
+		</activity>
+	</application>
+</manifest>
diff --git a/build/android/src/main/java/net.minetest.minetest/MinetestAssetCopy.java b/build/android/src/main/java/net.minetest.minetest/MinetestAssetCopy.java
new file mode 100644
index 000000000..eb92acb63
--- /dev/null
+++ b/build/android/src/main/java/net.minetest.minetest/MinetestAssetCopy.java
@@ -0,0 +1,416 @@
+package net.minetest.minetest;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.util.Vector;
+import java.util.Iterator;
+import java.lang.Object;
+
+import android.app.Activity;
+import android.content.res.AssetFileDescriptor;
+
+import android.os.AsyncTask;
+import android.os.Bundle;
+import android.os.Environment;
+import android.util.Log;
+import android.view.Display;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+import android.graphics.Rect;
+import android.graphics.Paint;
+import android.text.TextPaint;
+
+public class MinetestAssetCopy extends Activity
+{
+	@Override
+	public void onCreate(Bundle savedInstanceState)
+	{
+		super.onCreate(savedInstanceState);
+		
+		setContentView(R.layout.assetcopy);
+		
+		m_ProgressBar = (ProgressBar) findViewById(R.id.progressBar1);
+		m_Filename = (TextView) findViewById(R.id.textView1);
+		
+		Display display = getWindowManager().getDefaultDisplay();
+		m_ProgressBar.getLayoutParams().width = (int) (display.getWidth() * 0.8);
+		m_ProgressBar.invalidate();
+		
+		/* check if there's already a copy in progress and reuse in case it is*/
+		MinetestAssetCopy prevActivity = 
+				(MinetestAssetCopy) getLastNonConfigurationInstance();
+		if(prevActivity!= null) {
+			m_AssetCopy = prevActivity.m_AssetCopy;
+		}
+		else {
+			m_AssetCopy = new copyAssetTask();
+			m_AssetCopy.execute();
+		}
+	}
+	
+	/* preserve asset copy background task to prevent restart of copying */
+	/* this way of doing it is not recommended for latest android version */
+	/* but the recommended way isn't available on android 2.x */
+	public Object onRetainNonConfigurationInstance()
+	{
+		return this;
+	}
+	
+	ProgressBar m_ProgressBar;
+	TextView m_Filename;
+	
+	copyAssetTask m_AssetCopy;
+	
+	private class copyAssetTask extends AsyncTask<String, Integer, String>
+	{
+		private long getFullSize(String filename)
+		{
+			long size = 0;
+			try {
+				InputStream src = getAssets().open(filename);
+				byte[] buf = new byte[4096];
+				
+				int len = 0;
+				while ((len = src.read(buf)) > 0)
+				{
+					size += len;
+				}
+			}
+			catch (IOException e)
+			{
+				e.printStackTrace();
+			}
+			return size;
+		}
+
+		@Override
+		protected String doInBackground(String... files)
+		{
+			m_foldernames  = new Vector<String>();
+			m_filenames    = new Vector<String>();
+			m_tocopy       = new Vector<String>();
+			m_asset_size_unknown = new Vector<String>();
+			String baseDir = 
+					Environment.getExternalStorageDirectory().getAbsolutePath()
+					+ "/";
+			
+			
+			// prepare temp folder
+			File TempFolder = new File(baseDir + "Minetest/tmp/");
+			
+			if (!TempFolder.exists())
+			{
+				TempFolder.mkdir();
+			}
+			else {
+				File[] todel = TempFolder.listFiles();
+				
+				for(int i=0; i < todel.length; i++)
+				{
+					Log.v("MinetestAssetCopy","deleting: " + todel[i].getAbsolutePath());
+					todel[i].delete();
+				}
+			}
+			
+			// add a .nomedia file
+			try {
+				OutputStream dst = new FileOutputStream(baseDir + "Minetest/.nomedia");
+				dst.close();
+			} catch (IOException e) {
+				Log.e("MinetestAssetCopy","Failed to create .nomedia file");
+				e.printStackTrace();
+			}
+			
+			
+			// build lists from prepared data
+			BuildFolderList();
+			BuildFileList();
+			
+			// scan filelist
+			ProcessFileList();
+			
+			// doing work
+			m_copy_started = true;
+			m_ProgressBar.setMax(m_tocopy.size());
+			
+			for (int i = 0; i < m_tocopy.size(); i++)
+			{
+				try
+				{
+					String filename = m_tocopy.get(i);
+					publishProgress(i);
+					
+					boolean asset_size_unknown = false;
+					long filesize = -1;
+					
+					if (m_asset_size_unknown.contains(filename))
+					{
+						File testme = new File(baseDir + "/" + filename);
+						
+						if(testme.exists())
+						{
+							filesize = testme.length();
+						}
+						asset_size_unknown = true;
+					}
+					
+					InputStream src;
+					try
+					{
+						src = getAssets().open(filename);
+					} catch (IOException e) {
+						Log.e("MinetestAssetCopy","Copying file: " + filename + " FAILED (not in assets)");
+						e.printStackTrace();
+						continue;
+					}
+					
+					// Transfer bytes from in to out
+					byte[] buf = new byte[1*1024];
+					int len = src.read(buf, 0, 1024);
+					
+					/* following handling is crazy but we need to deal with    */
+					/* compressed assets.Flash chips limited livetime due to   */
+					/* write operations, we can't allow large files to destroy */
+					/* users flash.                                            */
+					if (asset_size_unknown)
+					{
+						if ( (len > 0) && (len < buf.length) && (len == filesize))
+						{
+							src.close();
+							continue;
+						}
+						
+						if (len == buf.length)
+						{
+							src.close();
+							long size = getFullSize(filename);
+							if ( size == filesize)
+							{
+								continue;
+							}
+							src = getAssets().open(filename);
+							len = src.read(buf, 0, 1024);
+						}
+					}
+					if (len > 0)
+					{
+						int total_filesize = 0;
+						OutputStream dst;
+						try
+						{
+							dst = new FileOutputStream(baseDir + "/" + filename);
+						} catch (IOException e) {
+							Log.e("MinetestAssetCopy","Copying file: " + baseDir +
+							"/" + filename + " FAILED (couldn't open output file)");
+							e.printStackTrace();
+							src.close();
+							continue;
+						}
+						dst.write(buf, 0, len);
+						total_filesize += len;
+						
+						while ((len = src.read(buf)) > 0)
+						{
+							dst.write(buf, 0, len);
+							total_filesize += len;
+						}
+						
+						dst.close();
+						Log.v("MinetestAssetCopy","Copied file: " +
+									m_tocopy.get(i) + " (" + total_filesize +
+									" bytes)");
+					}
+					else if (len < 0)
+					{
+						Log.e("MinetestAssetCopy","Copying file: " +
+								m_tocopy.get(i) + " failed, size < 0");
+					}
+					src.close();
+				} 
+				catch (IOException e)
+				{
+					Log.e("MinetestAssetCopy","Copying file: " +
+							m_tocopy.get(i) + " failed");
+					e.printStackTrace();
+				}
+			}
+			return "";
+		}
+		
+		
+		/**
+		 * update progress bar
+		 */
+		protected void onProgressUpdate(Integer... progress)
+		{
+			
+			if (m_copy_started)
+			{
+				boolean shortened = false;
+				String todisplay = m_tocopy.get(progress[0]);
+				m_ProgressBar.setProgress(progress[0]);
+				m_Filename.setText(todisplay);
+			}
+			else
+			{
+				boolean shortened = false;
+				String todisplay = m_Foldername;
+				String full_text = "scanning " + todisplay + " ...";
+				m_Filename.setText(full_text);
+			}
+		}
+		
+		/**
+		 * check al files and folders in filelist
+		 */
+		protected void ProcessFileList()
+		{
+			String FlashBaseDir = 
+					Environment.getExternalStorageDirectory().getAbsolutePath();
+			
+			Iterator itr = m_filenames.iterator();
+			
+			while (itr.hasNext())
+			{
+				String current_path = (String) itr.next();
+				String FlashPath = FlashBaseDir + "/" + current_path;
+				
+				if (isAssetFolder(current_path))
+				{
+					/* store information and update gui */
+					m_Foldername = current_path;
+					publishProgress(0);
+					
+					/* open file in order to check if it's a folder */
+					File current_folder = new File(FlashPath);
+					if (!current_folder.exists())
+					 {
+						if (!current_folder.mkdirs())
+						{
+							Log.e("MinetestAssetCopy","\t failed create folder: " +
+									FlashPath);
+						}
+						else
+						{
+							Log.v("MinetestAssetCopy","\t created folder: " +
+									FlashPath);
+						}
+					}
+					
+					continue;
+				}
+				
+				/* if it's not a folder it's most likely a file */
+				boolean refresh = true;
+				
+				File testme = new File(FlashPath);
+				
+				long asset_filesize = -1;
+				long stored_filesize = -1;
+				
+				if (testme.exists())
+				{
+					try
+					{
+						AssetFileDescriptor fd = getAssets().openFd(current_path);
+						asset_filesize         = fd.getLength();
+						fd.close();
+					} 
+					catch (IOException e)
+					{
+						refresh = true;
+						m_asset_size_unknown.add(current_path);
+						Log.e("MinetestAssetCopy","Failed to open asset file \"" +
+								FlashPath + "\" for size check");
+					}
+					
+					stored_filesize = testme.length();
+					
+					if (asset_filesize == stored_filesize)
+					{
+						refresh = false;
+					}
+					
+				}
+				
+				if (refresh)
+				{
+					m_tocopy.add(current_path);
+				}
+			}
+		}
+		
+		/**
+		 * read list of folders prepared on package build
+		 */
+		protected void BuildFolderList()
+		{
+			try
+			{
+				InputStream is = getAssets().open("index.txt");
+				BufferedReader reader = new BufferedReader(new InputStreamReader(is));
+		
+				String line = reader.readLine();
+				while (line != null)
+				{
+					m_foldernames.add(line);
+					line = reader.readLine();
+				}
+				is.close();
+			} catch (IOException e1)
+			{
+				Log.e("MinetestAssetCopy","Error on processing index.txt");
+				e1.printStackTrace();
+			}
+		}
+		
+		/**
+		 * read list of asset files prepared on package build
+		 */
+		protected void BuildFileList()
+		{
+			long entrycount = 0;
+			try
+			{
+				InputStream is = getAssets().open("filelist.txt");
+				BufferedReader reader = new BufferedReader(new InputStreamReader(is));
+		
+				String line = reader.readLine();
+				while (line != null)
+				{
+					m_filenames.add(line);
+					line = reader.readLine();
+					entrycount ++;
+				}
+				is.close();
+			}
+			catch (IOException e1)
+			{
+				Log.e("MinetestAssetCopy","Error on processing filelist.txt");
+				e1.printStackTrace();
+			}
+		}
+		
+		protected void onPostExecute (String result)
+		{
+			finish();
+		}
+		
+		protected boolean isAssetFolder(String path)
+		{
+			return m_foldernames.contains(path);
+		}
+		
+		boolean m_copy_started = false;
+		String m_Foldername = "media";
+		Vector<String> m_foldernames;
+		Vector<String> m_filenames;
+		Vector<String> m_tocopy;
+		Vector<String> m_asset_size_unknown;
+	}
+}
diff --git a/build/android/src/main/java/net.minetest.minetest/MinetestTextEntry.java b/build/android/src/main/java/net.minetest.minetest/MinetestTextEntry.java
new file mode 100644
index 000000000..68dc73274
--- /dev/null
+++ b/build/android/src/main/java/net.minetest.minetest/MinetestTextEntry.java
@@ -0,0 +1,91 @@
+package net.minetest.minetest;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.os.Bundle;
+import android.text.InputType;
+import android.util.Log;
+import android.view.KeyEvent;
+import android.view.View;
+import android.view.View.OnKeyListener;
+import android.widget.EditText;
+
+public class MinetestTextEntry extends Activity {
+	public AlertDialog mTextInputDialog;
+	public EditText mTextInputWidget;
+	
+	private final int MultiLineTextInput              = 1;
+	private final int SingleLineTextInput             = 2;
+	private final int SingleLinePasswordInput         = 3;
+	
+	@Override
+	public void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		
+		Bundle b = getIntent().getExtras();
+		String acceptButton = b.getString("EnterButton");
+		String hint         = b.getString("hint");
+		String current      = b.getString("current");
+		int    editType     = b.getInt("editType");
+		
+		AlertDialog.Builder builder = new AlertDialog.Builder(this);
+		mTextInputWidget = new EditText(this);
+		mTextInputWidget.setHint(hint);
+		mTextInputWidget.setText(current);
+		mTextInputWidget.setMinWidth(300);
+		if (editType == SingleLinePasswordInput) {
+			mTextInputWidget.setInputType(InputType.TYPE_CLASS_TEXT | 
+					InputType.TYPE_TEXT_VARIATION_PASSWORD);
+		}
+		else {
+			mTextInputWidget.setInputType(InputType.TYPE_CLASS_TEXT);
+		}
+		
+		
+		builder.setView(mTextInputWidget);
+		
+		if (editType == MultiLineTextInput) {
+			builder.setPositiveButton(acceptButton, new DialogInterface.OnClickListener() {
+				public void onClick(DialogInterface dialog, int whichButton) 
+				{ pushResult(mTextInputWidget.getText().toString()); }
+				});
+		}
+		
+		builder.setOnCancelListener(new DialogInterface.OnCancelListener() {
+			public void onCancel(DialogInterface dialog) {
+				cancelDialog();
+			}
+		});
+		
+		mTextInputWidget.setOnKeyListener(new OnKeyListener() {
+			@Override
+			public boolean onKey(View view, int KeyCode, KeyEvent event) {
+				if ( KeyCode == KeyEvent.KEYCODE_ENTER){
+
+					pushResult(mTextInputWidget.getText().toString());
+					return true;
+				}
+				return false;
+			}
+		});
+		
+		mTextInputDialog = builder.create();
+		mTextInputDialog.show();
+	}
+	
+	public void pushResult(String text) {
+		Intent resultData = new Intent();
+		resultData.putExtra("text", text);
+		setResult(Activity.RESULT_OK,resultData);
+		mTextInputDialog.dismiss();
+		finish();
+	}
+	
+	public void cancelDialog() {
+		setResult(Activity.RESULT_CANCELED);
+		mTextInputDialog.dismiss();
+		finish();
+	}
+}
diff --git a/build/android/src/main/java/net.minetest.minetest/MtNativeActivity.java b/build/android/src/main/java/net.minetest.minetest/MtNativeActivity.java
new file mode 100644
index 000000000..fc95a8379
--- /dev/null
+++ b/build/android/src/main/java/net.minetest.minetest/MtNativeActivity.java
@@ -0,0 +1,100 @@
+package net.minetest.minetest;
+
+import android.app.NativeActivity;
+import android.content.Intent;
+import android.os.Bundle;
+import android.util.Log;
+import android.view.WindowManager;
+
+public class MtNativeActivity extends NativeActivity {
+	@Override
+	public void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		m_MessagReturnCode = -1;
+		m_MessageReturnValue = "";
+
+	}
+
+	@Override
+	public void onDestroy() {
+		super.onDestroy();
+	}
+
+
+	public void copyAssets() {
+		Intent intent = new Intent(this, MinetestAssetCopy.class);
+		startActivity(intent);
+	}
+
+	public void showDialog(String acceptButton, String hint, String current,
+			int editType) {
+
+		Intent intent = new Intent(this, MinetestTextEntry.class);
+		Bundle params = new Bundle();
+		params.putString("acceptButton", acceptButton);
+		params.putString("hint", hint);
+		params.putString("current", current);
+		params.putInt("editType", editType);
+		intent.putExtras(params);
+		startActivityForResult(intent, 101);
+		m_MessageReturnValue = "";
+		m_MessagReturnCode   = -1;
+	}
+
+	public static native void putMessageBoxResult(String text);
+
+	/* ugly code to workaround putMessageBoxResult not beeing found */
+	public int getDialogState() {
+		return m_MessagReturnCode;
+	}
+
+	public String getDialogValue() {
+		m_MessagReturnCode = -1;
+		return m_MessageReturnValue;
+	}
+
+	public float getDensity() {
+		return getResources().getDisplayMetrics().density;
+	}
+
+	public int getDisplayWidth() {
+		return getResources().getDisplayMetrics().widthPixels;
+	}
+
+	public int getDisplayHeight() {
+		return getResources().getDisplayMetrics().heightPixels;
+	}
+
+	@Override
+	protected void onActivityResult(int requestCode, int resultCode,
+			Intent data) {
+		if (requestCode == 101) {
+			if (resultCode == RESULT_OK) {
+				String text = data.getStringExtra("text");
+				m_MessagReturnCode = 0;
+				m_MessageReturnValue = text;
+			}
+			else {
+				m_MessagReturnCode = 1;
+			}
+		}
+	}
+
+	static {
+		System.loadLibrary("openal");
+		System.loadLibrary("ogg");
+		System.loadLibrary("vorbis");
+		System.loadLibrary("ssl");
+		System.loadLibrary("crypto");
+		System.loadLibrary("gmp");
+		System.loadLibrary("iconv");
+
+		// We don't have to load libminetest.so ourselves,
+		// but if we do, we get nicer logcat errors when
+		// loading fails.
+		System.loadLibrary("minetest");
+	}
+
+	private int m_MessagReturnCode;
+	private String m_MessageReturnValue;
+}
diff --git a/build/android/src/main/res/drawable-hdpi/irr_icon.png b/build/android/src/main/res/drawable-hdpi/irr_icon.png
new file mode 100644
index 000000000..0b6861a0d
--- /dev/null
+++ b/build/android/src/main/res/drawable-hdpi/irr_icon.png
diff --git a/build/android/src/main/res/drawable-ldpi/irr_icon.png b/build/android/src/main/res/drawable-ldpi/irr_icon.png
new file mode 100644
index 000000000..b8c5d0177
--- /dev/null
+++ b/build/android/src/main/res/drawable-ldpi/irr_icon.png
diff --git a/build/android/src/main/res/drawable-mdpi/irr_icon.png b/build/android/src/main/res/drawable-mdpi/irr_icon.png
new file mode 100644
index 000000000..951a7f8c1
--- /dev/null
+++ b/build/android/src/main/res/drawable-mdpi/irr_icon.png
diff --git a/build/android/src/main/res/drawable-xhdpi/irr_icon.png b/build/android/src/main/res/drawable-xhdpi/irr_icon.png
new file mode 100644
index 000000000..2ec528ef7
--- /dev/null
+++ b/build/android/src/main/res/drawable-xhdpi/irr_icon.png
diff --git a/build/android/src/main/res/layout/assetcopy.xml b/build/android/src/main/res/layout/assetcopy.xml
new file mode 100644
index 000000000..1fcfffd65
--- /dev/null
+++ b/build/android/src/main/res/layout/assetcopy.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    android:orientation="vertical" >
+
+    <ProgressBar
+        android:id="@+id/progressBar1"
+        style="?android:attr/progressBarStyleHorizontal"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center_vertical" />
+
+    <TextView
+        android:id="@+id/textView1"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:ellipsize="middle" 
+        android:singleLine="true"
+        android:layout_gravity="center_horizontal"
+        android:text="@string/preparing_media"
+        android:textAppearance="?android:attr/textAppearanceSmall" />
+
+</LinearLayout>
diff --git a/build/android/src/main/res/values/strings.xml b/build/android/src/main/res/values/strings.xml
new file mode 100644
index 000000000..b407a77c6
--- /dev/null
+++ b/build/android/src/main/res/values/strings.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+	<string name="preparing_media">Preparing media...</string>
+</resources>
+
diff --git a/build/android/src/main/res/values/styles.xml b/build/android/src/main/res/values/styles.xml
new file mode 100644
index 000000000..25b8df5a3
--- /dev/null
+++ b/build/android/src/main/res/values/styles.xml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+	<style name="Theme.Transparent" parent="android:Theme">
+		<item name="android:windowIsTranslucent">true</item>
+		<item name="android:windowBackground">@android:color/transparent</item>
+		<item name="android:windowContentOverlay">@null</item>
+		<item name="android:windowNoTitle">true</item>
+		<item name="android:windowIsFloating">true</item>
+		<item name="android:backgroundDimEnabled">false</item>
+	</style>
+</resources>
\ No newline at end of file