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Revamp hidden timeout handling

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Add a new timeout_style environment variable and a corresponding
GRUB_TIMEOUT_STYLE configuration key for grub-mkconfig.  This
controls hidden-timeout handling more simply than the previous
arrangements, and pressing any hotkeys associated with menu entries
during the hidden timeout will now boot the corresponding menu entry
immediately.

GRUB_HIDDEN_TIMEOUT=<non-empty> + GRUB_TIMEOUT=<non-zero> now
generates a warning, and if it shows the menu it will do so as if
the second timeout were not present.  Other combinations are
translated into reasonable equivalents.
This commit is contained in:
Colin Watson 2013-11-28 02:27:13 +00:00
parent 2d76b4d81e
commit 8f236c1419
6 changed files with 255 additions and 37 deletions
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2
grub-core/normal/main.c
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@ -523,7 +523,7 @@ static const char *features[] = {
"feature_chainloader_bpb", "feature_ntldr", "feature_platform_search_hint",
"feature_default_font_path", "feature_all_video_module",
"feature_menuentry_id", "feature_menuentry_options", "feature_200_final",
"feature_nativedisk_cmd"
"feature_nativedisk_cmd", "feature_timeout_style"
};
GRUB_MOD_INIT(normal)