build-script: T3664: Allowed all options in both config file and command args

Moved defaults away from argparser to `defaults.py`. This unlocks the ability to
pass values that can be defined as command line arguments via a config file.

With this change logic looks like this (in order of overrides).

Pre-build config:
`data/defaults.toml` -> `build-flavors/<flavor>.toml` ->
`--<command line argument>`

Build config:
`defaults.py` -> `data/defaults.toml` -> `build-types/<type>.toml` ->
`architectures/<architecture>.toml` -> `build-flavors/<flavor>.toml` ->
`--<command line argument>`

1 files changed, 16 insertions, 0 deletions

diff --git a/scripts/image-build/defaults.py b/scripts/image-build/defaults.py
index 9fd5eeed..a0c5c8bf 100644
--- a/scripts/image-build/defaults.py
+++ b/scripts/image-build/defaults.py
@@ -17,6 +17,11 @@
 
 
 import os
+import getpass
+import platform
+
+def get_default_build_by():
+    return "{user}@{host}".format(user= getpass.getuser(), host=platform.node())
 
 # Default boot settings
 boot_settings: dict[str, str] = {
@@ -27,6 +32,17 @@ boot_settings: dict[str, str] = {
     'bootmode': 'normal'
 }
 
+# Hardcoded default values
+HARDCODED_BUILD = {
+    'custom_apt_entry': [],
+    'custom_apt_key': [],
+    'custom_package': [],
+    'reuse_iso': None,
+    'disk_size': 10,
+    'build_by': get_default_build_by(),
+    'build_comment': '',
+}
+
 # Relative to the repository directory
 
 BUILD_DIR = 'build'