releasetools: Add common.ExtractAvbPublicKey().
Bug: 123716522
Test: python -m unittest test_common
Change-Id: I1f645008a14cc882ef280f169c36e4b14a53ef88
diff --git a/tools/releasetools/common.py b/tools/releasetools/common.py
index 9cda0bd..e71667b 100644
--- a/tools/releasetools/common.py
+++ b/tools/releasetools/common.py
@@ -50,7 +50,8 @@
if base_out_path is None:
base_search_path = "out"
else:
- base_search_path = os.path.join(base_out_path, os.path.basename(os.getcwd()))
+ base_search_path = os.path.join(base_out_path,
+ os.path.basename(os.getcwd()))
platform_search_path = {
"linux2": os.path.join(base_search_path, "host/linux-x86"),
@@ -552,11 +553,7 @@
"""
if key is None:
key = info_dict["avb_" + partition + "_key_path"]
- avbtool = os.getenv('AVBTOOL') or info_dict["avb_avbtool"]
- pubkey_path = MakeTempFile(prefix="avb-", suffix=".pubkey")
- RunAndCheckOutput(
- [avbtool, "extract_public_key", "--key", key, "--output", pubkey_path])
-
+ pubkey_path = ExtractAvbPublicKey(key)
rollback_index_location = info_dict[
"avb_" + partition + "_rollback_index_location"]
return "{}:{}:{}".format(partition, rollback_index_location, pubkey_path)
@@ -2123,6 +2120,21 @@
return pubkey
+def ExtractAvbPublicKey(key):
+ """Extracts the AVB public key from the given public or private key.
+
+ Args:
+ key: The input key file, which should be PEM-encoded public or private key.
+
+ Returns:
+ The path to the extracted AVB public key file.
+ """
+ output = MakeTempFile(prefix='avb-', suffix='.avbpubkey')
+ RunAndCheckOutput(
+ ['avbtool', 'extract_public_key', "--key", key, "--output", output])
+ return output
+
+
def MakeRecoveryPatch(input_dir, output_sink, recovery_img, boot_img,
info_dict=None):
"""Generates the recovery-from-boot patch and writes the script to output.