binman: Rename ExpandToLimit to extend_to_limit

The word 'expand' is used for entries which generate subentries. It is
also used for entries that can have an '_expanded' version which is used
to break out its contents.

Rather than talking about expanding an entry's size, use the term
'extending'. It is slightly more precise and avoids the above conflicts.

This change renders the old 'expand-size' property invalid, so add an
error check for that.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
diff --git a/tools/binman/binman.rst b/tools/binman/binman.rst
index 0061e43..509fc8d 100644
--- a/tools/binman/binman.rst
+++ b/tools/binman/binman.rst
@@ -480,8 +480,8 @@
     for each entry. This makes it easy to find out exactly where the entry
     ended up in the image, regardless of parent sections, etc.
 
-expand-size:
-    Expand the size of this entry to fit available space. This space is only
+extend-size:
+    Extend the size of this entry to fit available space. This space is only
     limited by the size of the image/section and the position of the next
     entry.
 
diff --git a/tools/binman/entry.py b/tools/binman/entry.py
index 4232097..52ba7a8 100644
--- a/tools/binman/entry.py
+++ b/tools/binman/entry.py
@@ -106,7 +106,7 @@
         self.pad_after = 0
         self.offset_unset = False
         self.image_pos = None
-        self.expand_size = False
+        self.extend_size = False
         self.compress = 'none'
         self.missing = False
         self.faked = False
@@ -235,6 +235,8 @@
         """
         if 'pos' in self._node.props:
             self.Raise("Please use 'offset' instead of 'pos'")
+        if 'expand-size' in self._node.props:
+            self.Raise("Please use 'extend-size' instead of 'expand-size'")
         self.offset = fdt_util.GetInt(self._node, 'offset')
         self.size = fdt_util.GetInt(self._node, 'size')
         self.orig_offset = fdt_util.GetInt(self._node, 'orig-offset')
@@ -262,7 +264,7 @@
                        self.align_size)
         self.align_end = fdt_util.GetInt(self._node, 'align-end')
         self.offset_unset = fdt_util.GetBool(self._node, 'offset-unset')
-        self.expand_size = fdt_util.GetBool(self._node, 'expand-size')
+        self.extend_size = fdt_util.GetBool(self._node, 'extend-size')
         self.missing_msg = fdt_util.GetString(self._node, 'missing-msg')
 
         # This is only supported by blobs and sections at present
@@ -774,8 +776,8 @@
             name = '%s.%s' % (node.name, name)
         return name
 
-    def ExpandToLimit(self, limit):
-        """Expand an entry so that it ends at the given offset limit"""
+    def extend_to_limit(self, limit):
+        """Extend an entry so that it ends at the given offset limit"""
         if self.offset + self.size < limit:
             self.size = limit - self.offset
             # Request the contents again, since changing the size requires that
diff --git a/tools/binman/etype/section.py b/tools/binman/etype/section.py
index 639b12d..8e8ee50 100644
--- a/tools/binman/etype/section.py
+++ b/tools/binman/etype/section.py
@@ -386,7 +386,7 @@
         self._PackEntries()
         if self._sort:
             self._SortEntries()
-        self._ExpandEntries()
+        self._extend_entries()
 
         data = self.BuildSectionData(True)
         self.SetContents(data)
@@ -404,17 +404,17 @@
             offset = entry.Pack(offset)
         return offset
 
-    def _ExpandEntries(self):
-        """Expand any entries that are permitted to"""
+    def _extend_entries(self):
+        """Extend any entries that are permitted to"""
         exp_entry = None
         for entry in self._entries.values():
             if exp_entry:
-                exp_entry.ExpandToLimit(entry.offset)
+                exp_entry.extend_to_limit(entry.offset)
                 exp_entry = None
-            if entry.expand_size:
+            if entry.extend_size:
                 exp_entry = entry
         if exp_entry:
-            exp_entry.ExpandToLimit(self.size)
+            exp_entry.extend_to_limit(self.size)
 
     def _SortEntries(self):
         """Sort entries by offset"""
diff --git a/tools/binman/ftest.py b/tools/binman/ftest.py
index 92d9dc0..3196e65 100644
--- a/tools/binman/ftest.py
+++ b/tools/binman/ftest.py
@@ -2028,9 +2028,9 @@
         self.assertIn("Node '/binman/files': Missing 'pattern' property",
                       str(e.exception))
 
-    def testExpandSize(self):
-        """Test an expanding entry"""
-        data, _, map_data, _ = self._DoReadFileDtb('088_expand_size.dts',
+    def testExtendSize(self):
+        """Test an extending entry"""
+        data, _, map_data, _ = self._DoReadFileDtb('088_extend_size.dts',
                                                    map=True)
         expect = (tools.get_bytes(ord('a'), 8) + U_BOOT_DATA +
                   MRC_DATA + tools.get_bytes(ord('b'), 1) + U_BOOT_DATA +
@@ -2050,11 +2050,11 @@
 00000020   00000020  00000008  fill2
 ''', map_data)
 
-    def testExpandSizeBad(self):
-        """Test an expanding entry which fails to provide contents"""
+    def testExtendSizeBad(self):
+        """Test an extending entry which fails to provide contents"""
         with test_util.capture_sys_output() as (stdout, stderr):
             with self.assertRaises(ValueError) as e:
-                self._DoReadFileDtb('089_expand_size_bad.dts', map=True)
+                self._DoReadFileDtb('089_extend_size_bad.dts', map=True)
         self.assertIn("Node '/binman/_testing': Cannot obtain contents when "
                       'expanding entry', str(e.exception))
 
@@ -2487,22 +2487,22 @@
                       str(e.exception))
 
     def testEntryExpand(self):
-        """Test expanding an entry after it is packed"""
-        data = self._DoReadFile('121_entry_expand.dts')
+        """Test extending an entry after it is packed"""
+        data = self._DoReadFile('121_entry_extend.dts')
         self.assertEqual(b'aaa', data[:3])
         self.assertEqual(U_BOOT_DATA, data[3:3 + len(U_BOOT_DATA)])
         self.assertEqual(b'aaa', data[-3:])
 
-    def testEntryExpandBad(self):
-        """Test expanding an entry after it is packed, twice"""
+    def testEntryExtendBad(self):
+        """Test extending an entry after it is packed, twice"""
         with self.assertRaises(ValueError) as e:
-            self._DoReadFile('122_entry_expand_twice.dts')
+            self._DoReadFile('122_entry_extend_twice.dts')
         self.assertIn("Image '/binman': Entries changed size after packing",
                       str(e.exception))
 
-    def testEntryExpandSection(self):
-        """Test expanding an entry within a section after it is packed"""
-        data = self._DoReadFile('123_entry_expand_section.dts')
+    def testEntryExtendSection(self):
+        """Test extending an entry within a section after it is packed"""
+        data = self._DoReadFile('123_entry_extend_section.dts')
         self.assertEqual(b'aaa', data[:3])
         self.assertEqual(U_BOOT_DATA, data[3:3 + len(U_BOOT_DATA)])
         self.assertEqual(b'aaa', data[-3:])
@@ -5305,6 +5305,14 @@
         self.assertIn("Node '/binman/fit': Unknown operation 'unknown'",
                       str(exc.exception))
 
+    def test_uses_expand_size(self):
+        """Test that the 'expand-size' property cannot be used anymore"""
+        with self.assertRaises(ValueError) as e:
+           data = self._DoReadFile('225_expand_size_bad.dts')
+        self.assertIn(
+            "Node '/binman/u-boot': Please use 'extend-size' instead of 'expand-size'",
+            str(e.exception))
+
 
 if __name__ == "__main__":
     unittest.main()
diff --git a/tools/binman/test/088_expand_size.dts b/tools/binman/test/088_extend_size.dts
similarity index 87%
rename from tools/binman/test/088_expand_size.dts
rename to tools/binman/test/088_extend_size.dts
index c8a0130..f352699 100644
--- a/tools/binman/test/088_expand_size.dts
+++ b/tools/binman/test/088_extend_size.dts
@@ -5,7 +5,7 @@
 	binman {
 		size = <40>;
 		fill {
-			expand-size;
+			extend-size;
 			fill-byte = [61];
 			size = <0>;
 		};
@@ -13,7 +13,7 @@
 			offset = <8>;
 		};
 		section {
-			expand-size;
+			extend-size;
 			pad-byte = <0x62>;
 			intel-mrc {
 			};
@@ -25,7 +25,7 @@
 		section2 {
 			type = "section";
 			fill {
-				expand-size;
+				extend-size;
 				fill-byte = [63];
 				size = <0>;
 			};
@@ -35,7 +35,7 @@
 		};
 		fill2 {
 			type = "fill";
-			expand-size;
+			extend-size;
 			fill-byte = [64];
 			size = <0>;
 		};
diff --git a/tools/binman/test/089_expand_size_bad.dts b/tools/binman/test/089_extend_size_bad.dts
similarity index 89%
rename from tools/binman/test/089_expand_size_bad.dts
rename to tools/binman/test/089_extend_size_bad.dts
index edc0e5c..edc60e4 100644
--- a/tools/binman/test/089_expand_size_bad.dts
+++ b/tools/binman/test/089_extend_size_bad.dts
@@ -4,7 +4,7 @@
 / {
 	binman {
 		_testing {
-			expand-size;
+			extend-size;
 			return-contents-once;
 		};
 		u-boot {
diff --git a/tools/binman/test/121_entry_expand.dts b/tools/binman/test/121_entry_extend.dts
similarity index 100%
rename from tools/binman/test/121_entry_expand.dts
rename to tools/binman/test/121_entry_extend.dts
diff --git a/tools/binman/test/122_entry_expand_twice.dts b/tools/binman/test/122_entry_extend_twice.dts
similarity index 100%
rename from tools/binman/test/122_entry_expand_twice.dts
rename to tools/binman/test/122_entry_extend_twice.dts
diff --git a/tools/binman/test/123_entry_expand_section.dts b/tools/binman/test/123_entry_extend_section.dts
similarity index 100%
rename from tools/binman/test/123_entry_expand_section.dts
rename to tools/binman/test/123_entry_extend_section.dts
diff --git a/tools/binman/test/089_expand_size_bad.dts b/tools/binman/test/225_expand_size_bad.dts
similarity index 63%
copy from tools/binman/test/089_expand_size_bad.dts
copy to tools/binman/test/225_expand_size_bad.dts
index edc0e5c..d4ad9a6 100644
--- a/tools/binman/test/089_expand_size_bad.dts
+++ b/tools/binman/test/225_expand_size_bad.dts
@@ -3,12 +3,8 @@
 
 / {
 	binman {
-		_testing {
-			expand-size;
-			return-contents-once;
-		};
 		u-boot {
-			offset = <8>;
+			expand-size;
 		};
 	};
 };