scripts/west sign: Use BuildConfiguration instead of load_dot_config

The ImgtoolSigner.sign() is passed a BuildConfiguration object instance
that holds all of Kconfig options that have been defined for a build;
yet it has been reading the .config file once again, with the
load_dot_config, to check some of these options.
The commit replaces the code that has been using the load_dot_config
obtained data with the code that uses the BuildConfiguration object.

Signed-off-by: Dominik Ermel <[email protected]>

Author: de-nordic

scripts/west_commands/sign.py

@@ -19,8 +19,7 @@
     FIND_BUILD_DIR_DESCRIPTION
 from runners.core import BuildConfiguration
 from zcmake import CMakeCache
-from zephyr_ext_common import Forceable, load_dot_config, \
-    ZEPHYR_SCRIPTS
+from zephyr_ext_common import Forceable, ZEPHYR_SCRIPTS
 
 # This is needed to load edt.pickle files.
 sys.path.append(str(ZEPHYR_SCRIPTS / 'dts' / 'python-devicetree' / 'src'))
@@ -222,17 +221,11 @@ def sign(self, command, build_dir, bcfg, formats):
         flash = self.edt_flash_node(b, args.quiet)
         align, addr, size = self.edt_flash_params(flash)
 
-        dot_config_file = b / 'zephyr' / '.config'
-        if not dot_config_file.is_file():
-            log.die(f"no .config found at {dot_config_file}")
-
-        dot_config = load_dot_config(dot_config_file)
-
-        if dot_config.get('CONFIG_BOOTLOADER_MCUBOOT', 'n') != 'y':
+        if bcfg.get('CONFIG_BOOTLOADER_MCUBOOT', 'n') != 'y':
             log.wrn("CONFIG_BOOTLOADER_MCUBOOT is not set to y in "
-                    f"{dot_config_file}; this probably won't work")
+                    f"{bcfg.path}; this probably won't work")
 
-        kernel = dot_config.get('CONFIG_KERNEL_BIN_NAME', 'zephyr')
+        kernel = bcfg.get('CONFIG_KERNEL_BIN_NAME', 'zephyr')
 
         if 'bin' in formats:
             in_bin = b / 'zephyr' / f'{kernel}.bin'