diff options
Diffstat (limited to 'src/com/android/tradefed/util/FileUtil.java')
| -rw-r--r-- | src/com/android/tradefed/util/FileUtil.java | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/com/android/tradefed/util/FileUtil.java b/src/com/android/tradefed/util/FileUtil.java index 02fa70151..e64aef409 100644 --- a/src/com/android/tradefed/util/FileUtil.java +++ b/src/com/android/tradefed/util/FileUtil.java @@ -31,10 +31,14 @@ import java.io.FilenameFilter; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; +import java.nio.file.attribute.PosixFilePermission; import java.util.ArrayList; import java.util.Arrays; +import java.util.EnumSet; +import java.util.HashMap; import java.util.HashSet; import java.util.List; +import java.util.Map; import java.util.Set; import java.util.zip.ZipFile; @@ -60,6 +64,20 @@ public class FileUtil { private static String CHMOD = "chmod"; + /** A map of {@link PosixFilePermission} to its corresponding Unix file mode */ + private static final Map<PosixFilePermission, Integer> PERM_MODE_MAP = new HashMap<>(); + static { + PERM_MODE_MAP.put(PosixFilePermission.OWNER_READ, 0b100000000); + PERM_MODE_MAP.put(PosixFilePermission.OWNER_WRITE, 0b010000000); + PERM_MODE_MAP.put(PosixFilePermission.OWNER_EXECUTE, 0b001000000); + PERM_MODE_MAP.put(PosixFilePermission.GROUP_READ, 0b000100000); + PERM_MODE_MAP.put(PosixFilePermission.GROUP_WRITE, 0b000010000); + PERM_MODE_MAP.put(PosixFilePermission.GROUP_EXECUTE, 0b000001000); + PERM_MODE_MAP.put(PosixFilePermission.OTHERS_READ, 0b000000100); + PERM_MODE_MAP.put(PosixFilePermission.OTHERS_WRITE, 0b000000010); + PERM_MODE_MAP.put(PosixFilePermission.OTHERS_EXECUTE, 0b000000001); + } + public static int FILESYSTEM_FILENAME_MAX_LENGTH = 255; /** @@ -912,4 +930,20 @@ public class FileUtil { FileInputStream inputSource = new FileInputStream(file); return StreamUtil.calculateMd5(inputSource); } + + /** + * Converts an integer representing unix mode to a set of {@link PosixFilePermission}s + * @param mode + * @return + */ + public static Set<PosixFilePermission> unixModeToPosix(int mode) { + Set<PosixFilePermission> result = EnumSet.noneOf(PosixFilePermission.class); + for (PosixFilePermission pfp : EnumSet.allOf(PosixFilePermission.class)) { + int m = PERM_MODE_MAP.get(pfp); + if ((m & mode) == m) { + result.add(pfp); + } + } + return result; + } } |