Improved zipping logic so it zips chunks, instead of the whole file at once, to avoid OOM.

import android.util.Patterns;

import com.google.android.collect.Lists;

import libcore.io.Streams;

import java.io.BufferedOutputStream;

import java.io.ByteArrayOutputStream;

     * original in case of failure).

     */

    private static File zipBugreport(File bugreportFile) {

        byte[] bytes = read(bugreportFile);

        if (bytes == null) {

            // Could not read bugreport, return original.

            return bugreportFile;

        }

        String bugreportPath = bugreportFile.getAbsolutePath();

        String zippedPath = bugreportPath.replace(".txt", ".zip");

        Log.v(TAG, "zipping " + bugreportPath + " as " + zippedPath);

        File bugreportZippedFile = new File(zippedPath);

        try (ZipOutputStream zos = new ZipOutputStream(

        try (InputStream is = new FileInputStream(bugreportFile);

            ZipOutputStream zos = new ZipOutputStream(

                new BufferedOutputStream(new FileOutputStream(bugreportZippedFile)))) {

            ZipEntry entry = new ZipEntry("bugreport.txt");

            zos.putNextEntry(entry);

            zos.write(bytes);

            int totalBytes = Streams.copy(is, zos);

            Log.v(TAG, "size of original bugreport: " + totalBytes + " bytes");

            zos.closeEntry();

            // Delete old file;

            boolean deleted = bugreportFile.delete();

        }

    }

    /** Returns the content of file, or {@code null} in case of error. */

    private static byte[] read(File file) {

        try (ByteArrayOutputStream output = new ByteArrayOutputStream();

             InputStream input = new FileInputStream(file)) {

            byte[] buffer = new byte[4096];

            int read = 0;

            while ((read = input.read(buffer)) != -1) {

              output.write(buffer, 0, read);

            }

            return output.toByteArray();

        } catch (IOException e) {

            Log.e(TAG, "IOException reading " + file.getAbsolutePath(), e);

            return null;

        }

    }

    /**

     * Find the best matching {@link Account} based on build properties.

     */