Examples with StructStat android.system.StructStat used on opensource projects

Example 46 with StructStat

use of android.system.StructStat in project android_frameworks_base by crdroidandroid.

the class BackupAgent method fullBackupFileTree.

/**
     * Scan the dir tree (if it actually exists) and process each entry we find.  If the
     * 'excludes' parameters are non-null, they are consulted each time a new file system entity
     * is visited to see whether that entity (and its subtree, if appropriate) should be
     * omitted from the backup process.
     *
     * @param systemExcludes An optional list of excludes.
     * @hide
     */
protected final void fullBackupFileTree(String packageName, String domain, String startingPath, ArraySet<String> manifestExcludes, ArraySet<String> systemExcludes, FullBackupDataOutput output) {
    // Pull out the domain and set it aside to use when making the tarball.
    String domainPath = FullBackup.getBackupScheme(this).tokenToDirectoryPath(domain);
    if (domainPath == null) {
        if (startingPath == null) {
            return;
        } else {
            domainPath = startingPath;
        }
    }
    File rootFile = new File(startingPath);
    if (rootFile.exists()) {
        LinkedList<File> scanQueue = new LinkedList<File>();
        scanQueue.add(rootFile);
        while (scanQueue.size() > 0) {
            File file = scanQueue.remove(0);
            String filePath;
            try {
                // Ignore things that aren't "real" files or dirs
                StructStat stat = Os.lstat(file.getPath());
                if (!OsConstants.S_ISREG(stat.st_mode) && !OsConstants.S_ISDIR(stat.st_mode)) {
                    if (DEBUG)
                        Log.i(TAG, "Not a file/dir (skipping)!: " + file);
                    continue;
                }
                // For all other verification, look at the canonicalized path
                filePath = file.getCanonicalPath();
                // prune this subtree?
                if (manifestExcludes != null && manifestExcludes.contains(filePath)) {
                    continue;
                }
                if (systemExcludes != null && systemExcludes.contains(filePath)) {
                    continue;
                }
                // If it's a directory, enqueue its contents for scanning.
                if (OsConstants.S_ISDIR(stat.st_mode)) {
                    File[] contents = file.listFiles();
                    if (contents != null) {
                        for (File entry : contents) {
                            scanQueue.add(0, entry);
                        }
                    }
                }
            } catch (IOException e) {
                if (DEBUG)
                    Log.w(TAG, "Error canonicalizing path of " + file);
                if (Log.isLoggable(FullBackup.TAG_XML_PARSER, Log.VERBOSE)) {
                    Log.v(FullBackup.TAG_XML_PARSER, "Error canonicalizing path of " + file);
                }
                continue;
            } catch (ErrnoException e) {
                if (DEBUG)
                    Log.w(TAG, "Error scanning file " + file + " : " + e);
                if (Log.isLoggable(FullBackup.TAG_XML_PARSER, Log.VERBOSE)) {
                    Log.v(FullBackup.TAG_XML_PARSER, "Error scanning file " + file + " : " + e);
                }
                continue;
            }
            // Finally, back this file up (or measure it) before proceeding
            FullBackup.backupToTar(packageName, domain, null, domainPath, filePath, output);
        }
    }
}