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Adds a Python 2/3-compatible GUI menuconfig, in commit 9be6b7b
("guiconfig: Add a Tkinter-based menuconfig").
See that commit and the updated README for a longer description.
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This is a graphical configuration interface written in Tkinter. Like
menuconfig.py, it supports showing all symbols (with invisible symbols
in red) and jumping directly to symbols. Symbol values can also be
changed directly from the jump-to dialog.
When single-menu mode is enabled, a single menu is shown at a time, like
in the terminal menuconfig. Only this mode distinguishes between symbols
defined with 'config' and symbols defined with 'menuconfig'.
Compatible with both Python 2 and Python 3. Has been tested on X11,
Windows, and macOS.
To avoid having to carry around a bunch of GIFs, the image data is
embedded in guiconfig.py. To use separate GIF files instead, change
_USE_EMBEDDED_IMAGES to False. The image files can be found in
https://github.com/ulfalizer/Kconfiglib/tree/screenshots/guiconfig.
A new `make guiconfig` target in the Makefile patch will run the GUI
configuration interface on the Linux kernel.
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Simplifies the filename calculation for .old files, in commit 4fed39d
("Never prepend '.' to $KCONFIG_CONFIG.old"). This makes it reliable to
refer to the backup file as $KCONFIG_CONFIG.old in scripts.
This is a backwards-incompatible change when $KCONFIG_CONFIG is set to a
filename that does not start with a '.', so the major version is
increased. Note that $KCONFIG_CONFIG is usually set to
<some path>/.config, so few people should be affected.
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In retrospect, trying to be "helpful" by saving the old version of a
$KCONFIG_CONFIG that does not start with a '.' as e.g. '.config.old'
instead of 'config.old' is a bad idea, because it means that scripts
can't rely on the backup file simply being called $KCONFIG_CONFIG.old.
I spotted this causing compatibility issues in
https://github.com/automate-lfs/jhalfs/commit/a645174fd43ba4eee84089965df85785878e7aa6.
I had Vim backup files and the like in mind originally, but .config.old
is much more likely to be processed by scripts.
This is a small backwards compatibility break, so the major version will
be increased to 11.
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Makes sync_deps() safe to use in threaded scripts, in commit a664a6d
("Avoid chdir()ing in sync_deps()").
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Temporarily changing the working directory is iffy if threads are
involved, since other code will see the change. Seems like a generally
rude thing for a random library function to do.
dir_fd (open() relative to directory) is another option, but it's Python
3 only, only available on the low-level os.open() interface, and might
not be universally supported.
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Fixes an obscure menuconfig display issue, in commit 4b387e0
("menuconfig: Fix display issue for unsatisfied-deps selected symbol
with children").
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Says the same thing the comment above it says.
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A symbol with unsatisfied direct dependencies can end up with visible
children in an implicit submenu if it is selected (though that generates
a warning), so the optimization in _shown_nodes() isn't safe, and causes
the child nodes to not be shown outside show-all mode.
Just remove the optimization. Trying things out some more, everything's
plenty fast enough anyway.
Checking the direct dependencies of the parent instead would be safe.
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Adds a simple utility for initializing the configuration from an
existing configuration, in commit 4f1674f ("defconfig: Add script").
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Simple script for initializing the configuration from an existing
configuration file (usually a minimal configuration).
Just copying the minimal configuration to .config would usually work,
due to Kconfig semantics, but having it be a full configuration file
from the start might be handier and less confusing.
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Might be handy in other projects.
Also clean up formatting a bit.
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Improves menuconfig.py behavior slightly, in commit 61591f0
("menuconfig: Improve space/enter behavior slightly").
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Space toggles value is possible, and enters menus otherwise. Enter works
the other way around.
Make this explicit in the code, which also fixes some corner cases, like
space doing nothing on a y-selected menuconfig symbol.
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Consistent with guiconfig.py and shorter.
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Symbol.type is only needed when there might be tristates demoted to
bools due to modules being disabled. Symbol.orig_type is faster to read
otherwise (no @property magic).
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Make a comment consistent with guiconfig.py.
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Improves save/load UI design in the menuconfig, in commit 90c5573
("menuconfig: Remember last saved/loaded path and improve
_conf_changed").
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Remember the last path that was manually saved/loaded instead of
reverting back to standard_config_filename() (e.g. .config).
Remember the path to the last saved minimal configuration separately as
well.
Also improve the _conf_changed behavior when loading a .config within
the interface. Instead of always treating it as needing to be saved,
check if it's outdated, like for the .config file loaded on startup.
Also make the exit message ("No changes to save", etc.) always include
the target .config file, which is helpful. Previously, only the save
message did.
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Adds a (perhaps not noticeable) performance improvement to the
menuconfig, in commit a47615f ("menuconfig: Prune _shown_nodes()
recursion").
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When looking for visible children of invisible symbol nodes,
_shown_nodes() was always recursing all the way out the leaf nodes.
That's a ton of redundant work, though it doesn't seem to have lead to
noticeable slowness (it does in the GUI menuconfig).
Stop the search at symbol nodes with node.dep = n (from
'if'/'depends on'). Those can never have visible children, because
node.dep gets propagated to prompts.
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Shorten a bit.
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Fixes a display issue for m/y-valued 'menuconfig' symbols with disabled
optional prompts and visible children, in commit 37c6984 ("menuconfig:
Fix display issue for optional-prompt menuconfigs").
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removing the matches.append lookup saves a few %, as measured with
line_profiler.
It's fast enough already on any reasonable machine, so it's a bit silly,
but it's pretty trivial.
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Make things a bit more compact.
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Won't affect behavior, but it was intended.
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_shown_nodes() needs to check whether invisible 'menuconfig' symbols
with optional prompts have visible children, so that they can be shown
outside show-all mode. Previously, only 'config' symbols were checked.
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Makes menu paths shown in the menuconfig more informative, in commit
136c0e4 ("menuconfig: Include all parents in menu paths").
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Previously, symbols not defined with 'menuconfig' with children weren't
listed in the children's menu paths. It was deliberate, but it's
probably an anti-feature in retrospect, because it can make it harder to
find stuff by following the menu path.
Don't try to be clever and just list all the parent nodes in the menu
path.
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This function isn't defined at the module level.
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Adds a fix to avoid automatically turning on show-all in obscure cases
when loading a .config file from within the menuconfig interface: commit
50173b2 ("menuconfig: Avoid needlessly turning on show-all in rare
cases").
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Bit shorter, as clear.
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Items being added above the selected item would mess with the cursor
position too, if we didn't compensate.
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Loading a new configuration with the cursor on an invisible item with
visible children (can happen with optional prompts) would needlessly
turn on show-all, even though such invisible items are always shown.
Fix it by doing a more explicit check for whether the selected item
shows up in the menu after loading the configuration, like
_toggle_show_all() and _jump_to() do.
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Show-all mode is turned on if the node becomes invisible. The comment
said the opposite if you didn't include the parenthesis.
Piggyback some code nits.
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Fixes a minor menuconfig issue, in commit 08cfc33 ("menuconfig: Show
menus with unsatisfied 'visible if' in red in show-all mode").
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Previously they were shown in white, due to an oversight in
_draw_main().
_draw_main() should use the same logic as _shown_nodes(). Move it into a
separate _visible() function and call it from both.
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Roll the reversing into the slice.
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filing -> filling
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Improves the savedefconfig help text a tiny bit, in commit 13f84c7
("savedefconfig: Have '--out MINIMAL_CONFIGURATION' instead of '--out
OUT'").
Also improves 'source' performance a bit.
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