Ventoy 1.1.18 sources and Paravis patches

paravis/patch_ventoy_grubcfg.py

@@ -0,0 +1,94 @@
+#!/usr/bin/env python3
+"""
+Patch Ventoy 1.1.18 grub.cfg for the custom Xorboot layout:
+
+  * data (ISO) partition is detected by marker file /ISO/Ventoy/NOT.DEL
+    instead of being hardcoded to partition 1;
+  * partition numbers are exported to the ventoy GRUB module
+    (VTOY_DATA_PART_IDX / VTOY_EFI_PART_IDX);
+  * user config + custom menu live in /ISO/Ventoy/ instead of /ventoy/.
+
+Usage:
+    python3 patch_ventoy_grubcfg.py <path-to-vtoyefi/grub/grub.cfg>
+"""
+
+import io
+import sys
+
+MARK = "# VTOY-CUSTOM-LAYOUT"
+
+OLD_BLOCK = (
+    "    set vtoydev=$vtoy_dev\n"
+    "    set vtoy_iso_part=($vtoy_dev,1)\n"
+    "    set vtoy_efi_part=($vtoy_dev,2)\n"
+    "    \n"
+    "    vt_load_file_to_mem \"auto\" $prefix/fonts/unicode.pf2 vtoy_font_mem\n"
+)
+
+NEW_BLOCK = (
+    "    set vtoydev=$vtoy_dev\n"
+    "    set vtoy_iso_part=($vtoy_dev,1)\n"
+    "    set VTOY_DATA_PART_IDX=1\n"
+    "    set vtoy_efi_part=($vtoy_dev,2)\n"
+    "    set VTOY_EFI_PART_IDX=2\n"
+    "\n"
+    "    " + MARK + ": data (ISO) partition is the one that contains\n"
+    "    # /ISO/Ventoy/NOT.DEL (fallback: partition 1). VTOYEFI stays partition 2.\n"
+    "    for vt_part in 1 2 3 4; do\n"
+    "        if [ -f ($vtoy_dev,$vt_part)/ISO/Ventoy/NOT.DEL ]; then\n"
+    "            set vtoy_iso_part=($vtoy_dev,$vt_part)\n"
+    "            set VTOY_DATA_PART_IDX=$vt_part\n"
+    "            break\n"
+    "        fi\n"
+    "    done\n"
+    "    export VTOY_DATA_PART_IDX\n"
+    "    export VTOY_EFI_PART_IDX\n"
+    "\n"
+    "    vt_load_file_to_mem \"auto\" $prefix/fonts/unicode.pf2 vtoy_font_mem\n"
+)
+
+REPLACEMENTS = [
+    # plugin json at /ISO/Ventoy/ (both tftp and normal branches)
+    ("$vtoy_iso_part/ventoy/ventoy.json", "$vtoy_iso_part/ISO/Ventoy/ventoy.json"),
+    # custom menu file at /ISO/Ventoy/
+    ("$vt_plugin_path/ventoy/ventoy_grub.cfg", "$vt_plugin_path/ISO/Ventoy/ventoy_grub.cfg"),
+    # default menu language: Russian (Ventoy opens in Russian unless user picks)
+    ('    vt_init_menu_lang en_US\n', '    vt_init_menu_lang ru_RU\n'),
+    # WinPE with a non-standard BCD (Sergei Strelec: SSTR/BCD, WePE: WEPE/B64...).
+    # Ventoy reads the list of wims to patch from BCD files; the x86 wims of such
+    # PEs are only referenced there, so without this the mount under ia32 never
+    # happens. Same set as the legacy branch uses.
+    ('for file in "efi/microsoft/boot/bcd"; do',
+     'for file in "efi/microsoft/boot/bcd" "boot/bcd" "SSTR/BCD" "WEPE/B64" "WEPE/B32" "WEPE/BCD" "ISPE/BCD" "ISYL/BCD" "2K10/FONTS/BCD" "2K10/BCD" "boot/uqi/BCD"; do'),
+    ('for file in "boot/bcd" "/efi/microsoft/boot/bcd" "SSTR/BCD" "boot/bce"; do',
+     'for file in "boot/bcd" "/efi/microsoft/boot/bcd" "SSTR/BCD" "WEPE/B64" "WEPE/B32" "WEPE/BCD" "ISPE/BCD" "ISYL/BCD" "2K10/FONTS/BCD" "2K10/BCD" "boot/uqi/BCD" "boot/bce"; do'),
+]
+
+
+def main():
+    path = sys.argv[1]
+    src = io.open(path, encoding="utf-8", newline="").read()
+
+    if MARK in src:
+        print("already patched:", path)
+        return
+
+    if src.count(OLD_BLOCK) != 1:
+        raise SystemExit("layout block not found exactly once")
+
+    src = src.replace(OLD_BLOCK, NEW_BLOCK, 1)
+    print("layout block: marker-based data partition")
+
+    for old, new in REPLACEMENTS:
+        n = src.count(old)
+        if n == 0:
+            raise SystemExit("not found: %s" % old)
+        src = src.replace(old, new)
+        print("replaced %d x %s" % (n, old))
+
+    io.open(path, "w", encoding="utf-8", newline="").write(src)
+    print("written:", path)
+
+
+if __name__ == "__main__":
+    main()