commit 3385800b9c99eca2f75ae958b6c459f84514602c
Author: Jeff H <jeffrey92@gmail.com>
Date:   Wed Apr 19 16:11:39 2023 -0700

    hack: allow passing in esp object, and option to not close serial port

diff --git a/espefuse/__init__.py b/espefuse/__init__.py
index 20357ee..deca759 100755
--- a/espefuse/__init__.py
+++ b/espefuse/__init__.py
@@ -132,7 +132,7 @@ def split_on_groups(all_args):
     return groups, used_cmds
 
 
-def main(custom_commandline=None):
+def main(custom_commandline=None, esp=None):
     """
     Main function for espefuse
 
@@ -178,6 +178,12 @@ def main(custom_commandline=None):
         default="default_reset",
     )
 
+    init_parser.add_argument(
+        "--noclose",
+        help="Dont close serial port on exit",
+        action="store_true",
+    )
+
     init_parser.add_argument(
         "--debug",
         "-d",
@@ -211,22 +217,23 @@ def main(custom_commandline=None):
 
     print("espefuse.py v{}".format(esptool.__version__))
 
-    try:
-        esp = get_esp(
-            common_args.port,
-            common_args.baud,
-            common_args.before,
-            common_args.chip,
-            just_print_help,
-            common_args.virt,
-            common_args.debug,
-            common_args.path_efuse_file,
-        )
-    except esptool.FatalError as e:
-        raise esptool.FatalError(
-            f"{e}\nPlease make sure that you have specified "
-            "the right port with the --port argument"
-        )  # TODO: Require the --port argument in the next major release, ESPTOOL-490
+    if esp is None:
+        try:
+            esp = get_esp(
+                common_args.port,
+                common_args.baud,
+                common_args.before,
+                common_args.chip,
+                just_print_help,
+                common_args.virt,
+                common_args.debug,
+                common_args.path_efuse_file,
+            )
+        except esptool.FatalError as e:
+            raise esptool.FatalError(
+                f"{e}\nPlease make sure that you have specified "
+                "the right port with the --port argument"
+            )  # TODO: Require the --port argument in the next major release, ESPTOOL-490
 
     efuses, efuse_operations = get_efuses(
         esp, just_print_help, debug_mode, common_args.do_not_confirm
@@ -269,7 +276,7 @@ def main(custom_commandline=None):
             if not efuses.burn_all(check_batch_mode=True):
                 raise esptool.FatalError("BURN was not done")
     finally:
-        if not common_args.virt and esp._port:
+        if not common_args.virt and not common_args.noclose and esp._port:
             esp._port.close()