Merge branch 'cjwatson/timeout-style'
This commit is contained in:
Colin Watson
commit
44d4884779
6 changed files with 287 additions and 54 deletions
16
ChangeLog
16
ChangeLog
|
|
@ -1,3 +1,19 @@
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|||
2013-12-03 Colin Watson <cjwatson@ubuntu.com>
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Add a new timeout_style environment variable and a corresponding
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GRUB_TIMEOUT_STYLE configuration key for grub-mkconfig. This
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controls hidden-timeout handling more simply than the previous
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||||
arrangements, and pressing any hotkeys associated with menu entries
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during the hidden timeout will now boot the corresponding menu entry
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immediately.
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GRUB_HIDDEN_TIMEOUT=<non-empty> + GRUB_TIMEOUT=<non-zero> now
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generates a warning, and if it shows the menu it will do so as if
|
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the second timeout were not present. Other combinations are
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translated into reasonable equivalents.
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Based loosely on work by Franz Hsieh. Fixes Ubuntu bug #1178618.
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2013-12-02 Vladimir Serbinenko <phcoder@gmail.com>
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* util/config.c: Add missing pointer adjustment.
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|
|
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102
docs/grub.texi
102
docs/grub.texi
|
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@ -1298,23 +1298,26 @@ a key is pressed. The default is @samp{5}. Set to @samp{0} to boot
|
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immediately without displaying the menu, or to @samp{-1} to wait
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indefinitely.
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@item GRUB_HIDDEN_TIMEOUT
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Wait this many seconds for @key{ESC} to be pressed before displaying the menu.
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If no @key{ESC} is pressed during that time, display the menu for the number of
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seconds specified in GRUB_TIMEOUT before booting the default entry. We expect
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that most people who use GRUB_HIDDEN_TIMEOUT will want to have GRUB_TIMEOUT set
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to @samp{0} so that the menu is not displayed at all unless @key{ESC} is
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pressed.
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Unset by default.
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If @samp{GRUB_TIMEOUT_STYLE} is set to @samp{countdown} or @samp{hidden},
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the timeout is instead counted before the menu is displayed.
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@item GRUB_HIDDEN_TIMEOUT_QUIET
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In conjunction with @samp{GRUB_HIDDEN_TIMEOUT}, set this to @samp{true} to
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suppress the verbose countdown while waiting for a key to be pressed before
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displaying the menu. Unset by default.
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@item GRUB_TIMEOUT_STYLE
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If this option is unset or set to @samp{menu}, then GRUB will display the
|
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menu and then wait for the timeout set by @samp{GRUB_TIMEOUT} to expire
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before booting the default entry. Pressing a key interrupts the timeout.
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|
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If this option is set to @samp{countdown} or @samp{hidden}, then, before
|
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displaying the menu, GRUB will wait for the timeout set by
|
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@samp{GRUB_TIMEOUT} to expire. If @key{ESC} is pressed during that time, it
|
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will display the menu and wait for input. If a hotkey associated with a
|
||||
menu entry is pressed, it will boot the associated menu entry immediately.
|
||||
If the timeout expires before either of these happens, it will boot the
|
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default entry. In the @samp{countdown} case, it will show a one-line
|
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indication of the remaining time.
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|
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@item GRUB_DEFAULT_BUTTON
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@itemx GRUB_TIMEOUT_BUTTON
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@itemx GRUB_HIDDEN_TIMEOUT_BUTTON
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@itemx GRUB_TIMEOUT_STYLE_BUTTON
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@itemx GRUB_BUTTON_CMOS_ADDRESS
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Variants of the corresponding variables without the @samp{_BUTTON} suffix,
|
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used to support vendor-specific power buttons. @xref{Vendor power-on keys}.
|
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|
|
@ -1489,6 +1492,44 @@ Each module will be loaded as early as possible, at the start of
|
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|
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@end table
|
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|
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The following options are still accepted for compatibility with existing
|
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configurations, but have better replacements:
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|
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@table @samp
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@item GRUB_HIDDEN_TIMEOUT
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Wait this many seconds before displaying the menu. If @key{ESC} is pressed
|
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during that time, display the menu and wait for input according to
|
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@samp{GRUB_TIMEOUT}. If a hotkey associated with a menu entry is pressed,
|
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boot the associated menu entry immediately. If the timeout expires before
|
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either of these happens, display the menu for the number of seconds
|
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specified in @samp{GRUB_TIMEOUT} before booting the default entry.
|
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|
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If you set @samp{GRUB_HIDDEN_TIMEOUT}, you should also set
|
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@samp{GRUB_TIMEOUT=0} so that the menu is not displayed at all unless
|
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@key{ESC} is pressed.
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|
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This option is unset by default, and is deprecated in favour of the less
|
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confusing @samp{GRUB_TIMEOUT_STYLE=countdown} or
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@samp{GRUB_TIMEOUT_STYLE=hidden}.
|
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|
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@item GRUB_HIDDEN_TIMEOUT_QUIET
|
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In conjunction with @samp{GRUB_HIDDEN_TIMEOUT}, set this to @samp{true} to
|
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suppress the verbose countdown while waiting for a key to be pressed before
|
||||
displaying the menu.
|
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|
||||
This option is unset by default, and is deprecated in favour of the less
|
||||
confusing @samp{GRUB_TIMEOUT_STYLE=countdown}.
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|
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@item GRUB_HIDDEN_TIMEOUT_BUTTON
|
||||
Variant of @samp{GRUB_HIDDEN_TIMEOUT}, used to support vendor-specific power
|
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buttons. @xref{Vendor power-on keys}.
|
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|
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This option is unset by default, and is deprecated in favour of the less
|
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confusing @samp{GRUB_TIMEOUT_STYLE=countdown} or
|
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@samp{GRUB_TIMEOUT_STYLE=hidden}.
|
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|
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@end table
|
||||
|
||||
For more detailed customisation of @command{grub-mkconfig}'s output, you may
|
||||
edit the scripts in @file{/etc/grub.d} directly.
|
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@file{/etc/grub.d/40_custom} is particularly useful for adding entire custom
|
||||
|
|
@ -2477,15 +2518,16 @@ menu requires several fancy features of your terminal.
|
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@node Vendor power-on keys
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@chapter Using GRUB with vendor power-on keys
|
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|
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Some laptop vendors provide an additional power-on button which boots another
|
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OS. GRUB supports such buttons with the @samp{GRUB_TIMEOUT_BUTTON},
|
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@samp{GRUB_DEFAULT_BUTTON}, @samp{GRUB_HIDDEN_TIMEOUT_BUTTON} and
|
||||
Some laptop vendors provide an additional power-on button which boots
|
||||
another OS. GRUB supports such buttons with the @samp{GRUB_TIMEOUT_BUTTON},
|
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@samp{GRUB_TIMEOUT_STYLE_BUTTON}, @samp{GRUB_DEFAULT_BUTTON}, and
|
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@samp{GRUB_BUTTON_CMOS_ADDRESS} variables in default/grub (@pxref{Simple
|
||||
configuration}). @samp{GRUB_TIMEOUT_BUTTON}, @samp{GRUB_DEFAULT_BUTTON} and
|
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@samp{GRUB_HIDDEN_TIMEOUT_BUTTON} are used instead of the corresponding
|
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variables without the @samp{_BUTTON} suffix when powered on using the special
|
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button. @samp{GRUB_BUTTON_CMOS_ADDRESS} is vendor-specific and partially
|
||||
model-specific. Values known to the GRUB team are:
|
||||
configuration}). @samp{GRUB_TIMEOUT_BUTTON},
|
||||
@samp{GRUB_TIMEOUT_STYLE_BUTTON}, and @samp{GRUB_DEFAULT_BUTTON} are used
|
||||
instead of the corresponding variables without the @samp{_BUTTON} suffix
|
||||
when powered on using the special button. @samp{GRUB_BUTTON_CMOS_ADDRESS}
|
||||
is vendor-specific and partially model-specific. Values known to the GRUB
|
||||
team are:
|
||||
|
||||
@table @key
|
||||
@item Dell XPS M1330M
|
||||
|
|
@ -3030,6 +3072,7 @@ These variables have special meaning to GRUB.
|
|||
* superusers::
|
||||
* theme::
|
||||
* timeout::
|
||||
* timeout_style::
|
||||
@end menu
|
||||
|
||||
|
||||
|
|
@ -3462,8 +3505,21 @@ keyboard input before booting the default menu entry. A timeout of @samp{0}
|
|||
means to boot the default entry immediately without displaying the menu; a
|
||||
timeout of @samp{-1} (or unset) means to wait indefinitely.
|
||||
|
||||
This variable is often set by @samp{GRUB_TIMEOUT} or
|
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@samp{GRUB_HIDDEN_TIMEOUT} (@pxref{Simple configuration}).
|
||||
If @samp{timeout_style} (@pxref{timeout_style}) is set to @samp{countdown}
|
||||
or @samp{hidden}, the timeout is instead counted before the menu is
|
||||
displayed.
|
||||
|
||||
This variable is often set by @samp{GRUB_TIMEOUT} (@pxref{Simple
|
||||
configuration}).
|
||||
|
||||
|
||||
@node timeout_style
|
||||
@subsection timeout_style
|
||||
|
||||
This variable may be set to @samp{menu}, @samp{countdown}, or @samp{hidden}
|
||||
to control the way in which the timeout (@pxref{timeout}) interacts with
|
||||
displaying the menu. See the documentation of @samp{GRUB_TIMEOUT_STYLE}
|
||||
(@pxref{Simple configuration}) for details.
|
||||
|
||||
|
||||
@node Environment block
|
||||
|
|
|
|||
|
|
@ -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)
|
||||
|
|
|
|||
|
|
@ -40,6 +40,22 @@
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|||
grub_err_t (*grub_gfxmenu_try_hook) (int entry, grub_menu_t menu,
|
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int nested) = NULL;
|
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|
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enum timeout_style {
|
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TIMEOUT_STYLE_MENU,
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TIMEOUT_STYLE_COUNTDOWN,
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TIMEOUT_STYLE_HIDDEN
|
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};
|
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|
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struct timeout_style_name {
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const char *name;
|
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enum timeout_style style;
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} timeout_style_names[] = {
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{"menu", TIMEOUT_STYLE_MENU},
|
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{"countdown", TIMEOUT_STYLE_COUNTDOWN},
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{"hidden", TIMEOUT_STYLE_HIDDEN},
|
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{NULL, 0}
|
||||
};
|
||||
|
||||
/* Wait until the user pushes any key so that the user
|
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can see what happened. */
|
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void
|
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|
|
@ -70,6 +86,40 @@ grub_menu_get_entry (grub_menu_t menu, int no)
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return e;
|
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}
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/* Get the index of a menu entry associated with a given hotkey, or -1. */
|
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static int
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get_entry_index_by_hotkey (grub_menu_t menu, int hotkey)
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{
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grub_menu_entry_t entry;
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int i;
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|
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for (i = 0, entry = menu->entry_list; i < menu->size;
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i++, entry = entry->next)
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if (entry->hotkey == hotkey)
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return i;
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|
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return -1;
|
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}
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|
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/* Return the timeout style. If the variable "timeout_style" is not set or
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invalid, default to TIMEOUT_STYLE_MENU. */
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static enum timeout_style
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get_timeout_style (void)
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{
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const char *val;
|
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struct timeout_style_name *style_name;
|
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|
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val = grub_env_get ("timeout_style");
|
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if (!val)
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return TIMEOUT_STYLE_MENU;
|
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|
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for (style_name = timeout_style_names; style_name->name; style_name++)
|
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if (grub_strcmp (style_name->name, val) == 0)
|
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return style_name->style;
|
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|
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return TIMEOUT_STYLE_MENU;
|
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}
|
||||
|
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/* Return the current timeout. If the variable "timeout" is not set or
|
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invalid, return -1. */
|
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int
|
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|
|
@ -488,6 +538,33 @@ get_entry_number (grub_menu_t menu, const char *name)
|
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return entry;
|
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}
|
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|
||||
/* Check whether a second has elapsed since the last tick. If so, adjust
|
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the timer and return 1; otherwise, return 0. */
|
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static int
|
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has_second_elapsed (grub_uint64_t *saved_time)
|
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{
|
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grub_uint64_t current_time;
|
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|
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current_time = grub_get_time_ms ();
|
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if (current_time - *saved_time >= 1000)
|
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{
|
||||
*saved_time = current_time;
|
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return 1;
|
||||
}
|
||||
else
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void
|
||||
print_countdown (struct grub_term_coordinate *pos, int n)
|
||||
{
|
||||
grub_term_restore_pos (pos);
|
||||
/* NOTE: Do not remove the trailing space characters.
|
||||
They are required to clear the line. */
|
||||
grub_printf ("%d ", n);
|
||||
grub_refresh ();
|
||||
}
|
||||
|
||||
#define GRUB_MENU_PAGE_SIZE 10
|
||||
|
||||
/* Show the menu and handle menu entry selection. Returns the menu entry
|
||||
|
|
@ -502,6 +579,7 @@ run_menu (grub_menu_t menu, int nested, int *auto_boot)
|
|||
grub_uint64_t saved_time;
|
||||
int default_entry, current_entry;
|
||||
int timeout;
|
||||
enum timeout_style timeout_style;
|
||||
|
||||
default_entry = get_entry_number (menu, "default");
|
||||
|
||||
|
|
@ -510,8 +588,71 @@ run_menu (grub_menu_t menu, int nested, int *auto_boot)
|
|||
if (default_entry < 0 || default_entry >= menu->size)
|
||||
default_entry = 0;
|
||||
|
||||
timeout = grub_menu_get_timeout ();
|
||||
if (timeout < 0)
|
||||
/* If there is no timeout, the "countdown" and "hidden" styles result in
|
||||
the system doing nothing and providing no or very little indication
|
||||
why. Technically this is what the user asked for, but it's not very
|
||||
useful and likely to be a source of confusion, so we disallow this. */
|
||||
grub_env_unset ("timeout_style");
|
||||
|
||||
timeout_style = get_timeout_style ();
|
||||
|
||||
if (timeout_style == TIMEOUT_STYLE_COUNTDOWN
|
||||
|| timeout_style == TIMEOUT_STYLE_HIDDEN)
|
||||
{
|
||||
static struct grub_term_coordinate *pos;
|
||||
int entry = -1;
|
||||
|
||||
if (timeout_style == TIMEOUT_STYLE_COUNTDOWN && timeout)
|
||||
{
|
||||
pos = grub_term_save_pos ();
|
||||
print_countdown (pos, timeout);
|
||||
}
|
||||
|
||||
/* Enter interruptible sleep until Escape or a menu hotkey is pressed,
|
||||
or the timeout expires. */
|
||||
saved_time = grub_get_time_ms ();
|
||||
while (1)
|
||||
{
|
||||
int key;
|
||||
|
||||
key = grub_getkey_noblock ();
|
||||
if (key != GRUB_TERM_NO_KEY)
|
||||
{
|
||||
entry = get_entry_index_by_hotkey (menu, key);
|
||||
if (entry >= 0)
|
||||
break;
|
||||
}
|
||||
if (key == GRUB_TERM_ESC)
|
||||
{
|
||||
timeout = -1;
|
||||
break;
|
||||
}
|
||||
|
||||
if (timeout > 0 && has_second_elapsed (&saved_time))
|
||||
{
|
||||
timeout--;
|
||||
if (timeout_style == TIMEOUT_STYLE_COUNTDOWN)
|
||||
print_countdown (pos, timeout);
|
||||
}
|
||||
|
||||
if (timeout == 0)
|
||||
/* We will fall through to auto-booting the default entry. */
|
||||
break;
|
||||
}
|
||||
|
||||
grub_env_unset ("timeout");
|
||||
grub_env_unset ("timeout_style");
|
||||
if (entry >= 0)
|
||||
{
|
||||
*auto_boot = 0;
|
||||
return entry;
|
||||
}
|
||||
}
|
||||
|
||||
/* If timeout is 0, drawing is pointless (and ugly). */
|
||||
if (grub_menu_get_timeout () == 0)
|
||||
if (timeout == 0)
|
||||
{
|
||||
*auto_boot = 1;
|
||||
return default_entry;
|
||||
|
|
@ -540,18 +681,11 @@ run_menu (grub_menu_t menu, int nested, int *auto_boot)
|
|||
if (grub_normal_exit_level)
|
||||
return -1;
|
||||
|
||||
if (timeout > 0)
|
||||
if (timeout > 0 && has_second_elapsed (&saved_time))
|
||||
{
|
||||
grub_uint64_t current_time;
|
||||
|
||||
current_time = grub_get_time_ms ();
|
||||
if (current_time - saved_time >= 1000)
|
||||
{
|
||||
timeout--;
|
||||
grub_menu_set_timeout (timeout);
|
||||
saved_time = current_time;
|
||||
menu_print_timeout (timeout);
|
||||
}
|
||||
timeout--;
|
||||
grub_menu_set_timeout (timeout);
|
||||
menu_print_timeout (timeout);
|
||||
}
|
||||
|
||||
if (timeout == 0)
|
||||
|
|
@ -653,16 +787,15 @@ run_menu (grub_menu_t menu, int nested, int *auto_boot)
|
|||
|
||||
default:
|
||||
{
|
||||
grub_menu_entry_t entry;
|
||||
int i;
|
||||
for (i = 0, entry = menu->entry_list; i < menu->size;
|
||||
i++, entry = entry->next)
|
||||
if (entry->hotkey == c)
|
||||
{
|
||||
menu_fini ();
|
||||
*auto_boot = 0;
|
||||
return i;
|
||||
}
|
||||
int entry;
|
||||
|
||||
entry = get_entry_index_by_hotkey (menu, c);
|
||||
if (entry >= 0)
|
||||
{
|
||||
menu_fini ();
|
||||
*auto_boot = 0;
|
||||
return entry;
|
||||
}
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -186,9 +186,11 @@ export GRUB_DEFAULT \
|
|||
GRUB_HIDDEN_TIMEOUT \
|
||||
GRUB_HIDDEN_TIMEOUT_QUIET \
|
||||
GRUB_TIMEOUT \
|
||||
GRUB_TIMEOUT_STYLE \
|
||||
GRUB_DEFAULT_BUTTON \
|
||||
GRUB_HIDDEN_TIMEOUT_BUTTON \
|
||||
GRUB_TIMEOUT_BUTTON \
|
||||
GRUB_TIMEOUT_STYLE_BUTTON \
|
||||
GRUB_BUTTON_CMOS_ADDRESS \
|
||||
GRUB_BUTTON_CMOS_CLEAN \
|
||||
GRUB_DISTRIBUTOR \
|
||||
|
|
|
|||
|
|
@ -282,15 +282,41 @@ fi
|
|||
|
||||
make_timeout ()
|
||||
{
|
||||
if [ "x${1}" != "x" ] ; then
|
||||
if [ "x${GRUB_HIDDEN_TIMEOUT_QUIET}" = "xtrue" ] ; then
|
||||
verbose=
|
||||
if [ "x${1}${3}" != "x" ] ; then
|
||||
if [ "x${3}" != "x" ] ; then
|
||||
timeout="${2}"
|
||||
style="${3}"
|
||||
else
|
||||
# Handle the deprecated GRUB_HIDDEN_TIMEOUT scheme.
|
||||
timeout="${1}"
|
||||
if [ "x${2}" != "x0" ] ; then
|
||||
grub_warn "$(gettext "Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.")"
|
||||
fi
|
||||
if [ "x${GRUB_HIDDEN_TIMEOUT_QUIET}" = "xtrue" ] ; then
|
||||
style="hidden"
|
||||
else
|
||||
style="countdown"
|
||||
fi
|
||||
fi
|
||||
if [ "x${style}" = "xcountdown" ] ; then
|
||||
verbose=" --verbose"
|
||||
else
|
||||
verbose=
|
||||
fi
|
||||
cat << EOF
|
||||
if [ x\$feature_timeout_style = xy ] ; then
|
||||
set timeout_style=${style}
|
||||
set timeout=${timeout}
|
||||
EOF
|
||||
if [ "x${style}" != "xmenu" ] ; then
|
||||
cat << EOF
|
||||
# Fallback hidden-timeout code in case the timeout_style feature is
|
||||
# unavailable.
|
||||
elif sleep${verbose} --interruptible ${timeout} ; then
|
||||
set timeout=0
|
||||
EOF
|
||||
fi
|
||||
cat << EOF
|
||||
if sleep$verbose --interruptible ${1} ; then
|
||||
set timeout=${2}
|
||||
fi
|
||||
EOF
|
||||
else
|
||||
|
|
@ -304,12 +330,12 @@ if [ "x$GRUB_BUTTON_CMOS_ADDRESS" != "x" ]; then
|
|||
cat <<EOF
|
||||
if cmostest $GRUB_BUTTON_CMOS_ADDRESS ; then
|
||||
EOF
|
||||
make_timeout "${GRUB_HIDDEN_TIMEOUT_BUTTON}" "${GRUB_TIMEOUT_BUTTON}"
|
||||
make_timeout "${GRUB_HIDDEN_TIMEOUT_BUTTON}" "${GRUB_TIMEOUT_BUTTON}" "${GRUB_TIMEOUT_STYLE_BUTTON}"
|
||||
echo else
|
||||
make_timeout "${GRUB_HIDDEN_TIMEOUT}" "${GRUB_TIMEOUT}"
|
||||
make_timeout "${GRUB_HIDDEN_TIMEOUT}" "${GRUB_TIMEOUT}" "${GRUB_TIMEOUT_STYLE}"
|
||||
echo fi
|
||||
else
|
||||
make_timeout "${GRUB_HIDDEN_TIMEOUT}" "${GRUB_TIMEOUT}"
|
||||
make_timeout "${GRUB_HIDDEN_TIMEOUT}" "${GRUB_TIMEOUT}" "${GRUB_TIMEOUT_STYLE}"
|
||||
fi
|
||||
|
||||
if [ "x$GRUB_BUTTON_CMOS_ADDRESS" != "x" ] && [ "x$GRUB_BUTTON_CMOS_CLEAN" = "xyes" ]; then
|
||||
|
|
|
|||
Loading…
Reference in a new issue