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Adds support for user-defined preprocessor functions in Python, which
can be used to get information from existing Python tools into Kconfig,
e.g. to have Kconfig symbols depend on hardware information stored in
some other format.
See commit b6827ca ("Add support for user-defined Python preprocessor
functions").
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Allow preprocessor functions to be defined in Python by putting a module
called 'kconfigfunctions' into sys.path. Internally, this simply adds
the functions to the predefined functions in Kconfig._functions.
User-defined Python functions make it simple to integrate information
from existing Python tools into Kconfig, e.g. to have Kconfig symbols
depend on hardware information stored in some other format. This might
be used to get device tree information into Kconfig in Zephyr.
Piggyback module docstring documentation for some extensions that were
previously only mentioned in the README.
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- Remove some unused imports
- Replace a lambda with a plain function
- Shorten some long lines
- Remove some redundant backslashes within brackets
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Also remove some redundant backslashes within brackets.
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Simplifies the code. Should promote new APIs.
Also fix list_undefined.py for recent kernels. More environment
variables are referenced now.
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No idea where "menu." came from.
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Adds commit b9b2ebb ("menuconfig: Add RGB color support to styles."),
which makes it possible to specify colors in MENUCONFIG_STYLE
using #RRGGBB notation.
The rendered colors may be more or less exact depending on terminal
capabilities. In the best case, we can redefine colors. Otherwise, we
fall back on the closest available color.
Contributed by Mitja Horvat (punkfluid).
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- Point out where the styling part starts and ends
- Move _style_attr() into the styling part (by moving the comment)
- Move _name_and_val_str() and _expr_str() to later in the file, closer
to where they're used (mostly in the help dialog)
- Turn _input_dialog() input handling into one if-elif-... chain, like
for the other dialogs.
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Prevent the 'Symbol/choice/menu/comment information' title string from
disappearing when it won't fit on the terminal.
Piggyback some code nits:
- Remove a redundant 'global _style'
- Use 'elif' after checking for KEY_RESIZE
- Consistently use '_sel_node_i = _menu_scroll = 0' to reset positions,
e.g. when entering menus
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- Make the coding style a bit more consistent with the rest of the code
- Allow colors to be allocated from the xterm 256-color grayscale
range, and emulate it when dynamically allocating colors. Never
allocate above color number 255 though, as anything there would be
unknown territory.
- Switch back to consistently passing tuples to functions. This was the
original design, before I suggested changing it...
- Remove some repeated information from docstrings and fix some small
typos
- Make use of the element1=element2 feature in the style definition
for the 'default' style
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Styles can now take a HTML notation as a color value:
- on terminals that support RGB color mode these are rendered
perfeclty
- on 256 color terminals the closes matching color is used
- on other terminals, the current color palette is scanned
and the closes matching color is used. This has few quirks
Example: Use "pure" red as selection foreground and "pure" blue as
background:
MENUCONFIG_STYLE="selection=fg:#ff0000,bg:#0000ff"
Additionally, it is possible to copy the style from other elements,
for example:
MENUCONFIG_STYLE="selection=fg:#ff0000,bg:#0000ff path=selection"
In the notation above, the "path" style will be copied from "selection".
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Adds commit af6c8dc ("menuconfig: Fix some glitching on small
terminals"), which fixes some minor graphical glitching in the
menuconfig interface when the terminal is too small for things to fit.
Commit 374f488 ("Clean up kernel Makefile patch and add new targets")
adds some new targets to the Linux makefile patch as well, though the
makefile patch isn't bundled on PyPI.
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Makes the README much less spammy.
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- 'mainmenu' and dialog titles now get clipped instead of disappearing
when they don't fit
- Lines of text no longer wrap to the next line (this glitch was mostly
hidden if something was printed on the next line)
- Text in a dialog can no longer end up on top of the dialog's frame
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The LD environment variable needs to be set now (in 4.19-rc2). It's
referenced by LD_DEAD_CODE_DATA_ELIMINATION.
The tests probably ought to run everything run via 'scriptconfig' in a
clean environment, because 'scriptconfig' automatically picks up
environment variables anyway. The current setup is nice in that it
indirectly catches stuff that might affect the defconfig tests though,
which don't use scriptconfig.
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Add two new targets:
- 'make kmenuconfig' runs the menuconfig interface
- 'make dumpvarsconfig' lists all referenced environment variables
together with their values (assuming they used the preprocessor
syntax)
Remove the 'kconfiglibtestconfig' target, which is no longer used.
Also clean up the target definitions. The joys of ancient code.
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New features:
- Commit ac8d152 ("menuconfig: Add support for custom color schemes
(aka styles)"), contributed by Mitja Horvat (pinkfluid), adds support
for configuring the style (colors and attributes) of menuconfig
interface elements by setting a new MENUCONFIG_STYLE environment
variable.
The format of MENUCONFIG_STYLE is documented in the menuconfig.py
module docstring. This format is now used internally as well to
define the predefined styles.
- Commit a092257 ("Allow macro expansion within symbol names") adds
support for expanding macros within symbol names. This could be used
e.g. to define template Kconfig files that get instantiated by
setting preprocessor variables before including them.
Other changes:
- Commit 6683213 ("Allow user values on 'option env' symbols") makes it
possible to give 'option env' symbols user values. There's no good
reason to disallow it (it's a leftover from an older way of
implementing them), and it simplifies the code a bit.
Note that 'option env' symbols are only supported for backwards
compatibility at this point. Environment variables can be expanded
directly.
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Enforces that all windows are created from styles defined via the new
styling mechanism.
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Mostly motivated by curses.COLORS, which depends on the terminal.
It's probably friendlier to run even if the style gets a bit messed up,
but it's also nice to point out problems.
Missing style templates and missing styles to the left of '=' are
pointed out now too, with the help of some flag hackery.
Prefix the warnings with 'menuconfig warning:' to make it easier to
distinguish them from warnings from Kconfiglib.
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This is consistent with non-existent styles being ignored, and gives
some forwards/backwards compatibility.
I wonder if there should be a warning for both instead.
Piggyback some nits.
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"color values are expected to be in the range 0 to COLORS-1", from
init_color(3ncurses).
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Make the syntax 'fg:123' instead of 'fg:color123'. This is a bit easier
to type. Hex and octal constants are accepted as well.
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- introduce the _parse_styles() function which can take a string
defintion and parse it into a color structure that can be used
by UI elements
- the _parse_styles() function modifies a global dictionary (_style)
which is subsequentially used to style the UI elements
- the _style_to_curses() function takes a string representation
of style colors and converts it to ncurses attributes.
For eaxmple: fg:brightred,bg:black,bold -> returns a color
pair representing brightred and black ORed with A_BOLD
- simplify _init_styles() as now the majority of the heavy lifting
is done by _parse_styles(). _init_styles() initializes the
default theme (either "defualt" or "monochrome")
- terminals without color capabilities are now handled by using
the "monochrome" theme. This theme doesn't use any colors
but rather just bold and standout attribtes.
- add support for the "underline" attribute
- add doctstring at the beginning describing the style syntax
- rename the _style() function to _style_attr() as it was conflicting
with the global _style dictionary
- introduce the StyleError exception; this one is thrown if an error
in the style syntax is encountered
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Some grammar, some copy-paste errors ('string' should be 'name').
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This is handled earlier in _tokenize() now.
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The C implementation supports this (though it's undocumented, and unused
to far).
This can be used e.g. to dynamically instatiate symbols from template
files:
Kconfig.template:
config $(subsys)_LOG
bool "Enable logging for $(subsys)"
depends on $(subsys)_HAS_LOG
... other stuff dependent on $(subsys)
Elsewhere:
subsys = FOO
source "Kconfig.template"
subsys = BAR
source "Kconfig.template"
Pretty sure this can easily be abused, but it should be supported at
least.
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Saves a few % of total parsing time, and probably some evaluation time
too. Microbenchmarking on Python 3 shows that 'is' is about 30% faster
than '==' for comparing integers on my machine.
This is safe even without assuming Python's small-integer optimization
(which caches objects for small integers, guaranteeing that small
integer literals always refer to the same object): We always refer to
symbolic constants using their symbolic names (_T_*, etc.), so they're
guaranteed to always refer to the same integer objects anyway.
This optimization is safe for client code too, unless you get some
unlikely situation where (1) there is no small-integer optimization, (2)
expressions get pickled and unpickled or the like, which would be unsafe
across Kconfiglib versions anyway, and (3) the client code tests
symbolic constants with 'is' instead of '==' (which isn't advertised as
safe, and a bad idea in general when pickling is involved). That's
probably too obscure to worry about.
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Gets rid of a check, doesn't hurt. The check was added before
'option env' was changed to just add a 'default' under the hood.
Note: New Kconfig code doesn't need 'option env'. Environment variables
are now expanded directly, including in the C tools. 'option env' is
only maintained for backwards compatibility.
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Invisible symbols are no longer shown in red outside of show-all mode.
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Adds a small menuconfig tweak that could avoid some user confusion:
Commit 66a2bf5 ("menuconfig: Do not use red for invisible symbols
outside of show-all mode")
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Invisible symbols can show up outside show-all mode if an invisible
symbol has visible symbols in an implicit (indented) submenu. Printing
them in red like in show-all mode is the perfectly consistent thing to
do, but might look confusing/broken.
Only print invisible symbols in red in show-all mode.
Also change the bracket style for all invisible bool/tristate symbols to
- - N_SYM
-M- M_SYM
-*- Y_SYM
That makes it clear that they can't be changed, even when they show up
outside show-all mode, and makes logical sense if that style is taken to
always mean that the symbol value can't be changed.
You lose a quick reference for whether a symbol is a bool or tristate,
but it's not a huge deal.
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New features:
- Commit 84bd863 ("menuconfig: Add a more 'make menuconfig'-like color
scheme") adds an alternative menuconfig color scheme contributed by
contributed by Mitja Horvat (pinkfluid).
The new color scheme can be enabled by setting the environment
variable MENUCONFIG_THEME to 'aquatic'.
The default color scheme now also uses bold text for the selected
entry, like the 'aquatic' theme.
Fixes:
- Commit d1e2a65 ("menuconfig: Always show implicit submenus with
visible nodes") fixes a display issue involving prompt-only
conditions where visible child nodes could disappear outside of
show-all mode.
Other changes:
- Commit 0ed2ba0 ("Improve the running-without-Makefile-patch
documentation") updates the documentation on how to run Kconfiglib on
the Linux kernel without using the Makefile patch.
- Misc. internal menuconfig refactoring.
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Show-all mode does not need to be enabled when jumping to an invisible
symbol with visible children from an implicit submenu, because the
invisible symbol will be shown anyway in that case.
Explicitly check whether the jumped-to node would be shown instead, and
enable show-all mode otherwise.
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Currently, the symbol BAR below (which ends up indented in an implicit
submenu) is shown only if DEP is non-n (or if show-all mode is
enabled):
config FOO
bool "foo" if DEP
default y
config BAR
bool "bar" if FOO
This is bad, because it hides visible symbols from the interface. The
assumption was that an implicit submenu (which is only created if the
parent has a prompt) would never have visible items when the root item
is invisible, but prompt-specific conditions and select/imply can break
that assumption.
Fix it by always showing implicit submenus with visible nodes, along
with the parent node. If the parent node is invisible, show it in red,
like in show-all mode (which happens automatically). That's probably
better than having mysteriously indented nodes when the parent is
invisible.
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- Include an updated list of environment variables, with sample values
- Give a method for listing all referenced environment variables, via
Kconfig.env_vars
- Remove the note that says that Kconfiglib will warn if an unset
environment variable is referenced. It's not true anymore with the
preprocessor, which silently expands unset variables to the empty
string.
Not setting essential environment variables causes obvious errors at
least.
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Just checking whether the default value expression is a single symbol
correctly handles the string/int/hex cases too, because that case will
always hit for those. D'oh.
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Used in two spots.
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The global should be called _stdscr, and then the names don't clash.
Leftover.
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Add info to module docstring.
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Factor out the call to the iterator.
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Add an alternative, less yellow, more 'make menuconfig'-like color
scheme, contributed by Mitja Horvat (pinkfluid). The new theme is
selected by setting the MENUCONFIG_THEME environment variable to
'aquatic'.
Make it so that custom themes can override just the styles they want to
change from the default theme.
Perhaps some non-hardcoded theming mechanism could be added later, but
keep it simple for now.
Piggyback some related changes:
- Make the selected item bold in the default theme, like the aquatic
theme does.
- Allow the style for the edit box in the jump-to dialog to be
configured separately from the style for edit boxes in pop-up
dialogs. That makes it possible to avoid some color clashes.
- Remove a redundant style setting for the jump-to edit box. The window
itself is already created with the correct style.
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New features:
- Commit 20de53b ("Add a Kconfig.kconfig_filenames attribute") and
commit 932d0f7 ("Add a Kconfig.env_vars attribute that lists env.
variables") make lists of all Kconfig files and referenced
environment variables available.
This could be used e.g. to implement alternative incremental build
schemes. Note that the sync_deps() mechanism already indirectly
catches any relevant changes to files and environment variables
though (anything that changes the configuration output).
- Commit 17d7c1e ("menuconfig: Show all symbols at each menu location
for multi.def. choices") makes it so that if a named choice is
defined in multiple locations, each of which adds options, you can
select any of the options regardless of via menu entry you enter the
choice.
Previously, you could only select the options defined at that menu
entry's location.
Named choices with symbols in more than one location are completely
broken in the C tools, so there's no reference for the behavior
there. This seems less confusing at least.
Suggested by Mitja Horvat (pinkfluid).
Fixes:
- Commit 0b46af4 ("menuconfig: Don't return when selecting a choice
symbol with children") improves menuconfig behavior in an extremely
obscure case.
- Commit 1c2c4ae ("oldconfig: Fix help display command for choices")
makes '?' print the help for choices in oldconfig. The command was
accidentally set to '??' there.
- Commit ddfd5df ("Improve menu structure for promptless choices")
fixes a menuconfig display issue for promptless choices (which
can appear "legitimately" if a named choice is defined in multiple
locations to add extra options).
Cleanup:
- Commit 2320b7a ("oldconfig: Use Kconfig.node_iter() and clean up")
- Some manual tree walking in other places has also been rewritten to
use Kconfig.node_iter().
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Promptless choices can appear "legitimately" if you define a named
choice in multiple locations to add on some symbols (which is broken in
the C tools though).
Prior to this fix, the promptless choice would get flattened, with the
choice symbols appearing in the same menu as the (invisible) choice.
This looks confusing.
Skip flattening promptless choices to fix it.
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Some general cleanup:
- Handle the iteration with the new Kconfig.node_iter() helper.
This makes some function so short that they become pointless. Have
just main() + oldconfig(node) + small helper functions.
- Use _name_and_loc_str(sc) for choices too, so that all locations get
reported for named choices defined in multiple locations
- Rewrite the intro to be less wordy and remove the sample session
(leftover from when oldconfig.py was in examples/, and not that
exciting)
- Print "Updated configuration written to..." instead of
"Configuration saved to..."
- Various other nits
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Kconfig.env_vars is a set() with the names of all environment variables
referenced in the configuration.
Can be used e.g. for custom incremental build implementations, though
sync_deps() already indirectly catches any relevant changes to
environment variables.
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Kconfig.kconfig_filenames is an ordered list of all Kconfig files
included in the configuration, relative to $srctree.
Can be used e.g. for custom incremental build implementations, though
sync_deps() already indirectly catches any relevant changes to files.
Piggyback some ' -> " quote style consistency cleanups.
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