binman: Allow control of which entries to read

The ObtainContents() and GetEntryContents() methods in this file read
every single entry in the section. This is the common case.

However when one of the entries has had its data updated (e.g. with
'binman replace') we don't want to read it again from the file. Allow
the entry to be skipped, for this purpose. This is currently done in the
CBFS implementation, so adding it here will allow that to use more of
the entry_Section code.

Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/tools/binman/etype/section.py b/tools/binman/etype/section.py
index 3342403..76e5eb1 100644 (file)
--- a/tools/binman/etype/section.py
+++ b/tools/binman/etype/section.py
@@ -143,8 +143,8 @@ class Entry_section(Entry):
         for entry in self._entries.values():
             entry.AddMissingProperties(have_image_pos)
 
-    def ObtainContents(self):
-        return self.GetEntryContents()
+    def ObtainContents(self, skip_entry=None):
+        return self.GetEntryContents(skip_entry=skip_entry)
 
     def GetPaddedDataForEntry(self, entry, entry_data):
         """Get the data for an entry including any padding
@@ -527,12 +527,13 @@ class Entry_section(Entry):
                 return entry
         return None
 
-    def GetEntryContents(self):
+    def GetEntryContents(self, skip_entry=None):
         """Call ObtainContents() for each entry in the section
         """
         def _CheckDone(entry):
-            if not entry.ObtainContents():
-                next_todo.append(entry)
+            if entry != skip_entry:
+                if not entry.ObtainContents():
+                    next_todo.append(entry)
             return entry
 
         todo = self._entries.values()
@@ -620,7 +621,7 @@ class Entry_section(Entry):
 
     def ListEntries(self, entries, indent):
         """List the files in the section"""
-        Entry.AddEntryInfo(entries, indent, self.name, 'section', self.size,
+        Entry.AddEntryInfo(entries, indent, self.name, self.etype, self.size,
                            self.image_pos, None, self.offset, self)
         for entry in self._entries.values():
             entry.ListEntries(entries, indent + 1)