From 1ad0ea2eabc78dcb4ebf91d147cc99e62db5aa8c Mon Sep 17 00:00:00 2001
From: Michael Marineau <michael.marineau@coreos.com>
Date: Sat, 17 Aug 2013 01:30:24 -0400
Subject: [PATCH] fix(cgpt.py): Remove broken 'expand' feature.

This currently does nothing because our state partition is not partition
number 1. Even if it did we don't really needed it since we rely on
expanding on boot instead.
---
 build_library/cgpt.py                 | 65 +++------------------------
 build_library/legacy_disk_layout.json |  3 +-
 2 files changed, 8 insertions(+), 60 deletions(-)

diff --git a/build_library/cgpt.py b/build_library/cgpt.py
index b2980cded9..7bf4d52e65 100755
--- a/build_library/cgpt.py
+++ b/build_library/cgpt.py
@@ -93,41 +93,6 @@ def LoadPartitionConfig(filename):
   return config
 
 
-def GetTableTotals(config, partitions):
-  """Calculates total sizes/counts for a partition table.
-
-  Args:
-    config: Partition configuration file object
-    partitions: List of partitions to process
-  Returns:
-    Dict containing totals data
-  """
-
-  ret = {
-    'expand_count': 0,
-    'expand_min': 0,
-    'block_count': START_SECTOR * config['metadata']['block_size']
-  }
-
-  # Total up the size of all non-expanding partitions to get the minimum
-  # required disk size.
-  for partition in partitions:
-    if 'features' in partition and 'expand' in partition['features']:
-      ret['expand_count'] += 1
-      ret['expand_min'] += partition['blocks']
-    else:
-      ret['block_count'] += partition['blocks']
-
-  # At present, only one expanding partition is permitted.
-  # Whilst it'd be possible to have two, we don't need this yet
-  # and it complicates things, so it's been left out for now.
-  if ret['expand_count'] > 1:
-    raise InvalidLayout('1 expand partition allowed, %d requested'
-                        % ret['expand_count'])
-
-  ret['min_disk_size'] = ret['block_count'] + ret['expand_min']
-
-  return ret
 
 
 def GetPartitionTable(options, config, image_type):
@@ -271,44 +236,28 @@ def WriteLayoutFunction(options, sfile, func_name, image_type, config):
   """
 
   partitions = GetPartitionTable(options, config, image_type)
-  partition_totals = GetTableTotals(config, partitions)
+  disk_block_count = START_SECTOR * config['metadata']['block_size']
+
+  for partition in partitions:
+    disk_block_count += partition['blocks']
 
   sfile.write('%s() {\ncreate_image $1 %d %s\n' % (
-      func_name, partition_totals['min_disk_size'],
+      func_name, disk_block_count,
       config['metadata']['block_size']))
 
   sfile.write('CURR=%d\n' % START_SECTOR)
   sfile.write('$GPT create $1\n')
 
-  # Pass 1: Set up the expanding partition size.
-  for partition in partitions:
-    partition['var'] = partition['blocks']
-
-    if partition['type'] != 'blank':
-      if partition['num'] == 1:
-        if 'features' in partition and 'expand' in partition['features']:
-          sfile.write('if [ -b $1 ]; then\n')
-          sfile.write('STATEFUL_SIZE=$(( $(numsectors $1) - %d))\n' %
-            partition_totals['block_count'])
-          sfile.write('else\n')
-          sfile.write('STATEFUL_SIZE=%s\n' % partition['blocks'])
-          sfile.write('fi\n')
-          partition['var'] = '$STATEFUL_SIZE'
-
-  sfile.write('STATEFUL_SIZE=$((STATEFUL_SIZE-(STATEFUL_SIZE %% %d)))\n' %
-    config['metadata']['fs_block_size'])
-
-  # Pass 2: Write out all the cgpt add commands.
   for partition in partitions:
     if partition['type'] != 'blank':
       sfile.write('$GPT add -i %d -b $CURR -s %s -t %s -l %s -u %s $1 && ' % (
-          partition['num'], str(partition['var']), partition['type'],
+          partition['num'], str(partition['blocks']), partition['type'],
           partition['label'], partition['uuid']))
     if partition['type'] == 'efi':
       sfile.write('$GPT boot -p -b $2 -i %d $1\n' % partition['num'])
 
     # Increment the CURR counter ready for the next partition.
-    sfile.write('CURR=$(( $CURR + %s ))\n' % partition['var'])
+    sfile.write('CURR=$(( $CURR + %s ))\n' % partition['blocks'])
 
   sfile.write('$GPT show $1\n')
   sfile.write('}\n')
diff --git a/build_library/legacy_disk_layout.json b/build_library/legacy_disk_layout.json
index bee4432685..611675b292 100644
--- a/build_library/legacy_disk_layout.json
+++ b/build_library/legacy_disk_layout.json
@@ -63,8 +63,7 @@
         "num": 9,
         "label":"STATE",
         "type":"data",
-        "blocks":"2097152",
-        "features":["expand"]
+        "blocks":"2097152"
       }
     ],
     "usb": [