1 files changed, 81 insertions, 0 deletions

diff --git a/tools/agptek_rocker/update_update.py b/tools/agptek_rocker/update_update.py
new file mode 100644
index 0000000000..4fb7056d19
--- /dev/null
+++ b/tools/agptek_rocker/update_update.py
@@ -0,0 +1,81 @@
+#!/usr/bin/env python
+import os
+import sys
+import hashlib
+import argparse
+from collections import OrderedDict
+
+EQ = '='
+BLK_START = '{'
+BLK_END = '}'
+
+#name: {key: value, key: value}
+def parse(filename):
+    blocks = OrderedDict()
+    blk = None
+    key = None
+    value = None
+
+    with open(filename) as f:
+        # read all lines
+        for line in f:
+            # if line has '=' sign treat it
+            # as split symbol
+            if EQ in line:
+                key, value = line.split(EQ, 1)
+                key = key.strip()
+                value = value.strip()
+
+                if value == BLK_START:
+                    # value on the right of '=' is '{'
+                    # so this opens new block
+                    blk = key
+                    blocks[key] = OrderedDict()
+
+                elif value == BLK_END:
+                    # value on the right of '=' is '}'
+                    # this terminates block
+                    blk = None
+
+                else:
+                    # key = value inside block
+                    blocks[blk][key] = value
+
+    # return parsed structure as dictionary
+    return blocks
+
+# write back internal representation into file
+def dump(tree, filename=None):
+    with open(filename, 'w') as f:
+        for blk in tree.keys():
+            f.write('\n%s={\n' % blk)
+            for key,value in tree[blk].items():
+                f.write('\t%s=%s\n' % (key,value))
+            f.write('}\n')
+
+if __name__=='__main__':
+    description = 'Update information in update.txt control file.'
+    usage = 'update_update.py filepath'
+
+    argp = argparse.ArgumentParser(usage=usage, description=description)
+    argp.add_argument('filepath', help='update.txt filepath to update contents of.')
+
+    if len(sys.argv) == 1:
+        argp.print_help()
+        sys.exit(1)
+
+    args = argp.parse_args()
+
+    # build config file representation
+    tree = parse(args.filepath)
+
+    dir = os.path.dirname(args.filepath)
+
+    # update all md5 sums
+    for blk in tree.keys():
+        filename = os.path.join(dir, os.path.basename(tree[blk]['file_path']))
+        with open(filename) as f:
+            tree[blk]['md5'] = hashlib.md5(f.read()).hexdigest()
+
+    # write back result
+    dump(tree, args.filepath)