binman: Support loading entry data from a file

When modifying an image it is convenient to load the data from the file
into each entry so that it can be reprocessed. Add a new LoadData() method
to handle this.

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

2 files changed, 10 insertions, 0 deletions

diff --git a/tools/binman/entry.py b/tools/binman/entry.py
index e3c6434822..6436384254 100644
--- a/tools/binman/entry.py
+++ b/tools/binman/entry.py
@@ -695,3 +695,8 @@ features to produce new behaviours.
                   (self.GetPath(), self.offset, self.offset + self.size,
                    self.size, len(data)))
         return data[self.offset:self.offset + self.size]
+
+    def LoadData(self, decomp=True):
+        data = self.ReadData(decomp)
+        self.ProcessContentsUpdate(data)
+        self.Detail('Loaded data size %x' % len(data))
diff --git a/tools/binman/etype/section.py b/tools/binman/etype/section.py
index f29784c1bb..cd623821a3 100644
--- a/tools/binman/etype/section.py
+++ b/tools/binman/etype/section.py
@@ -462,3 +462,8 @@ class Entry_section(Entry):
                            self.image_pos, None, self.offset, self)
         for entry in self._entries.values():
             entry.ListEntries(entries, indent + 1)
+
+    def LoadData(self, decomp=True):
+        for entry in self._entries.values():
+            entry.LoadData(decomp)
+        self.Detail('Loaded data')