1 files changed, 22 insertions, 0 deletions
diff --git a/components/update/app/gen_cert_header.py b/components/update/app/gen_cert_header.py
new file mode 100644
index 000000000..7ecb15619
--- /dev/null
+++ b/components/update/app/gen_cert_header.py
@@ -0,0 +1,22 @@
+from __future__ import print_function
+
+import binascii
+
+def file_byte_generator(filename, block_size = 512):
+  with open(filename, "rb") as f:
+    while True:
+      block = f.read(block_size)
+      if block:
+        for byte in block:
+          yield byte
+      else:
+        break
+
+def create_header(out_fh, in_filename):
+  assert out_fh.name.endswith('.h')
+  array_name = out_fh.name[:-2] + 'Data'
+  hexified = ["0x" + binascii.hexlify(byte) for byte in file_byte_generator(in_filename)]
+  print("const uint8_t " + array_name + "[] = {", file=out_fh)
+  print(", ".join(hexified), file=out_fh)
+  print("};", file=out_fh)
+  return 0