fix: Close the data file after reading the data

Closes https://github.com/espressif/esptool/pull/1074

espefuse/efuse/esp32/operations.py

@@ -229,6 +229,7 @@ def burn_key(esp, efuses, args):
             raise esptool.FatalError("Unknown block name - %s" % (block_name))
         num_bytes = efuse.bit_len // 8
         data = datafile.read()
+        datafile.close()
         revers_msg = None
         if block_name in ("flash_encryption", "secure_boot_v1"):
             revers_msg = "\tReversing the byte order"

espefuse/efuse/esp32c2/operations.py

@@ -207,7 +207,11 @@ def burn_key(esp, efuses, args, digest=None):
 
     print("Burn keys to blocks:")
     for datafile, keypurpose in zip(datafile_list, keypurpose_list):
-        data = datafile if isinstance(datafile, bytes) else datafile.read()
+        if isinstance(datafile, bytes):
+            data = datafile
+        else:
+            data = datafile.read()
+            datafile.close()
 
         if keypurpose == "XTS_AES_128_KEY_DERIVED_FROM_128_EFUSE_BITS":
             efuse = efuses["BLOCK_KEY0_LOW_128"]

espefuse/efuse/esp32c3/operations.py

@@ -251,6 +251,7 @@ def burn_key(esp, efuses, args, digest=None):
 
         if digest is None:
             data = datafile.read()
+            datafile.close()
         else:
             data = datafile
 

espefuse/efuse/esp32c5/operations.py

@@ -248,6 +248,7 @@ def burn_key(esp, efuses, args, digest=None):
                     data = b"\x00" * 8 + data
             else:
                 data = datafile.read()
+                datafile.close()
         else:
             data = datafile
 

espefuse/efuse/esp32c6/operations.py

@@ -258,6 +258,7 @@ def burn_key(esp, efuses, args, digest=None):
 
         if digest is None:
             data = datafile.read()
+            datafile.close()
         else:
             data = datafile
 

espefuse/efuse/esp32c61/operations.py

@@ -315,6 +315,7 @@ def burn_key(esp, efuses, args, digest=None):
                     data = b"\x00" * 8 + data
             else:
                 data = datafile.read()
+                datafile.close()
         else:
             data = datafile
 

espefuse/efuse/esp32h2/operations.py

@@ -262,6 +262,7 @@ def burn_key(esp, efuses, args, digest=None):
                     data = b"\x00" * 8 + data
             else:
                 data = datafile.read()
+                datafile.close()
         else:
             data = datafile
 

espefuse/efuse/esp32h21/operations.py

@@ -246,6 +246,7 @@ def burn_key(esp, efuses, args, digest=None):
                     data = b"\x00" * 8 + data
             else:
                 data = datafile.read()
+                datafile.close()
         else:
             data = datafile
 

espefuse/efuse/esp32h4/operations.py

@@ -244,6 +244,7 @@ def burn_key(esp, efuses, args, digest=None):
                     data = b"\x00" * 8 + data
             else:
                 data = datafile.read()
+                datafile.close()
         else:
             data = datafile
 

espefuse/efuse/esp32p4/operations.py

@@ -315,6 +315,7 @@ def burn_key(esp, efuses, args, digest=None):
                     data = b"\x00" * 8 + data
             else:
                 data = datafile.read()
+                datafile.close()
         else:
             data = datafile
 

espefuse/efuse/esp32s2/operations.py

@@ -367,6 +367,7 @@ def burn_key(esp, efuses, args, digest=None):
 
         if digest is None:
             data = datafile.read()
+            datafile.close()
         else:
             data = datafile
 

espefuse/efuse/esp32s3/operations.py

@@ -368,6 +368,7 @@ def burn_key(esp, efuses, args, digest=None):
 
         if digest is None:
             data = datafile.read()
+            datafile.close()
         else:
             data = datafile