private Mount findMountPointRecursive(String file) {
try {
ArrayList<Mount> mounts = RootTools.getMounts();
for (File path = new File(file); path != null; ) {
for (Mount mount : mounts) {
if (mount.getMountPoint().equals(path)) {
return mount;
}
}
}
return null;
} catch (IOException e) {
throw new RuntimeException(e);
} catch (Exception e) {
if (RootTools.debugMode) {
e.printStackTrace();
}
}
return null;
}
/**
* This will take a path, which can contain the file name as well, and attempt to remount the
* underlying partition.
*
* <p>For example, passing in the following string:
* "/system/bin/some/directory/that/really/would/never/exist" will result in /system ultimately
* being remounted. However, keep in mind that the longer the path you supply, the more work this
* has to do, and the slower it will run.
*
* @param file file path
* @param mountType mount type: pass in RO (Read only) or RW (Read Write)
* @return a <code>boolean</code> which indicates whether or not the partition has been remounted
* as specified.
*/
protected boolean remount(String file, String mountType) {
// if the path has a trailing slash get rid of it.
if (file.endsWith("/") && !file.equals("/")) {
file = file.substring(0, file.lastIndexOf("/"));
}
// Make sure that what we are trying to remount is in the mount list.
boolean foundMount = false;
while (!foundMount) {
try {
for (Mount mount : RootTools.getMounts()) {
RootTools.log(mount.getMountPoint().toString());
if (file.equals(mount.getMountPoint().toString())) {
foundMount = true;
break;
}
}
} catch (Exception e) {
if (RootTools.debugMode) {
e.printStackTrace();
}
return false;
}
if (!foundMount) {
try {
file = (new File(file).getParent()).toString();
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
}
Mount mountPoint = findMountPointRecursive(file);
RootTools.log(
InternalVariables.TAG,
"Remounting "
+ mountPoint.getMountPoint().getAbsolutePath()
+ " as "
+ mountType.toLowerCase());
final boolean isMountMode = mountPoint.getFlags().contains(mountType.toLowerCase());
if (!isMountMode) {
// grab an instance of the internal class
try {
CommandCapture command =
new CommandCapture(
0,
"busybox mount -o remount,"
+ mountType.toLowerCase()
+ " "
+ mountPoint.getDevice().getAbsolutePath()
+ " "
+ mountPoint.getMountPoint().getAbsolutePath(),
"toolbox mount -o remount,"
+ mountType.toLowerCase()
+ " "
+ mountPoint.getDevice().getAbsolutePath()
+ " "
+ mountPoint.getMountPoint().getAbsolutePath(),
"mount -o remount,"
+ mountType.toLowerCase()
+ " "
+ mountPoint.getDevice().getAbsolutePath()
+ " "
+ mountPoint.getMountPoint().getAbsolutePath(),
"/system/bin/toolbox mount -o remount,"
+ mountType.toLowerCase()
+ " "
+ mountPoint.getDevice().getAbsolutePath()
+ " "
+ mountPoint.getMountPoint().getAbsolutePath());
Shell.startRootShell().add(command);
command.waitForFinish();
} catch (Exception e) {
}
mountPoint = findMountPointRecursive(file);
}
Log.i(InternalVariables.TAG, mountPoint.getFlags() + " AND " + mountType.toLowerCase());
if (mountPoint.getFlags().contains(mountType.toLowerCase())) {
RootTools.log(mountPoint.getFlags().toString());
return true;
} else {
RootTools.log(mountPoint.getFlags().toString());
return false;
}
}