Added hierarchical printing to container and segment

atrcopy/container.py

@@ -7,6 +7,7 @@ import numpy as np
 from . import errors
 from . import style_bits
 from .utils import to_numpy, to_numpy_list, uuid
+from . import media_type
 
 import logging
 log = logging.getLogger(__name__)
@@ -42,6 +43,7 @@ class Container:
         self.segments = []
         self.header = None
         self.filesystem = None
+        self._media_type = None
 
         self._data = None
         self._style = None
@@ -74,7 +76,7 @@ class Container:
     @data.setter
     def data(self, value):
         if self._data is not None:
-            raise errors.ReadOnlyContainer("media_type already populated with data")
+            raise errors.ReadOnlyContainer("container already populated with data")
         raw = value.tobytes()
         try:
             unpacked = self.calc_unpacked_bytes(raw)
@@ -100,6 +102,29 @@ class Container:
     def header_length(self):
         return len(self.header) if self.header is not None else 0
 
+    @property
+    def media_type(self):
+        return self._media_type
+
+    @media_type.setter
+    def media_type(self, value):
+        self._media_type = value
+        self.segments = []
+        if value.header:
+            self.header = value.header
+            self.segments.append(self.header)
+        self.segments.append(value)
+
+    @property
+    def verbose_info(self):
+        lines = []
+        name = self.verbose_name or self.name
+        lines.append(f"{name}: {len(self)} bytes")
+        for s in self.segments:
+            v = s.segment_info("    ")
+            lines.extend(v)
+        return "\n".join(lines)
+
     #### dunder methods
 
     def __str__(self):
@@ -148,6 +173,18 @@ class Container:
         """
         return np_data
 
+    #### media
+
+    def guess_media_type(self):
+        media = media_type.guess_media_type(self)
+        self.media_type = media
+
+    def guess_filesystem(self):
+        fs = filesystem.guess_filesystem(self.media_type)
+        if fs is not None:
+            self.filesystem = fs
+            self.segments.append(fs)
+
     #### serialization
 
     def __getstate__(self):

atrcopy/media_type.py

@@ -65,6 +65,11 @@ class MediaType(Segment):
         """
         pass
 
+    def find_filesystem(self):
+        fs = filesystem.guess_filesystem(self)
+        if fs:
+            self.segments = list(fs.iter_segments())
+
 
 class DiskImage(MediaType):
     pretty_name = "Disk Image"

atrcopy/segment.py

@@ -94,7 +94,7 @@ class Segment:
             origin = " @ %04x" % (self.origin)
         else:
             origin = ""
-        s = "%s ($%x bytes%s)" % (self.name, len(self), origin)
+        s = "%s (%d bytes%s)" % (self.name, len(self), origin)
         if self.error:
             s += " " + self.error
         return s
@@ -142,7 +142,7 @@ class Segment:
 
     def create_subset(self, new_order, *args, **kwargs):
         new_order_of_source = self.container_offset[new_order]
-        segment = DefaultSegment(self.container, new_order_of_source, *args, **kwargs)
+        segment = Segment(self.container, new_order_of_source, *args, **kwargs)
         return segment
 
     #### serialization
@@ -212,6 +212,13 @@ class Segment:
             s += "  error='%s'" % self.error
         return s
 
+    def segment_info(self, indent=""):
+        lines = []
+        lines.append(indent + str(self))
+        for s in self.segments:
+            lines.extend(s.segment_info(indent + "    "))
+        return lines
+
     def is_valid_index(self, i):
         return i >= 0 and i < len(self)
 

test/test_media_types.py

@@ -56,9 +56,8 @@ if __name__ == "__main__":
         print(f"checking {pathname}")
         sample_data = np.fromfile(pathname, dtype=np.uint8)
         container = guess_container(sample_data)
-        print(container)
-        media = guess_media_type(container)
-        print(f"{pathname}: {media}")
+        container.guess_media_type()
+        print(container.verbose_info)
 
     import sys
     import glob