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Adds some small documentation improvements:
- Commit b133331 ("Mention that passing subexpressions to expr_items()
works")
- Commit 6016156 ("Mention that the 'encoding' parameter is also used
for $(shell)")
- Commit 48ec584 ("Simplify eval_string() docstring re. syntax errors")
- Commit e44102a ("Make MenuNode.filename documentation more accurate
re. absolute paths")
Some minor optimizations are included as well.
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Be more consistent re. continuation line indents.
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An absolute path to within $srctree is turned into a relative path, and
a relative path with '..' in it might be turned into an absolute path.
Only whether the path is within $srctree matters.
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Was meant as not-a-literal-if, but it looks confusing.
Piggyback a comment nit.
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Syntax checking has been strict for a long time, so say "if there are
syntax errors" instead of "if syntax errors are detected".
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Consistent with the other functions.
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20% faster lookup in line_profiler in _tokenize(). The test usually
fails.
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Symbol is the most common case by far.
Also rename _finalize_tree() to _finalize_node(), and make the
explanation for what it does more specific. The recursion gets a bit
tricky.
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Adds commit 7403203 ("Make choice.set_value() no-change check work for
"n"/"m"/"y" strings").
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Same deal as in commit f2ac5e3 ("Make set_value() no-change check work
for "n"/"m"/"y" strings"). Overlooked the similar logic for choices.
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Adds commit a7302a6 ("menuconfig/guiconfig: Use orig_defaults in symbol
info").
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Adds commit 0ca8e78 ("Add {Symbol,Choice}.orig_*, corresponding to the
MenuNode fields").
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Getting defaults, select, implies, and ranges without dependencies
propagated to conditions can be useful for symbols and choices as well,
e.g. when generating standalone documentation for properties.
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Adds commit 58c65e0 ("Make REL_TO_STR public").
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Generally useful, and not likely to need any internal hackery.
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Do 'add = fields.append'. Pointless as an optimization, but shaves some
lines, and obvious in context.
Also add test coverage for __repr__() for string symbols with user
values.
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Makes set_value() smarter about saving redundant work, in commit f2ac5e3
("Make set_value() no-change check work for "n"/"m"/"y" strings").
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Worth pointing out explicitly.
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Convert "n"/"m"/"y" to 0/1/2 earlier, so that e.g. sym.set_value("y")
is recognized as a no-op when sym.user_value == 2.
This also helps when loading several configuration files that assign
some of the same symbols, because load_config() calls set_value() with
"n"/"m"/"y".
This could also cut down on the number of times a particular warning is
displayed when loading lots of overlapping configuration files.
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- Reorganize symbol fetching to remove some duplicated _undef_assign()
calls
- Move duplicated assignment warning generation into an
_assigned_twice() helper function
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Adds commit 0c79d23 ("menuconfig: Be silent when changing LC_CTYPE to a
UTF-8 locale").
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It's pretty subtle that sym.config_string can be used instead of the
internal sym._write_to_conf variable in client code. Mention it in
comments near where _write_to_conf is used.
Seen client code access _write_to_conf a few times now. No plans to
remove it though, so it'll most likely keep working.
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Same behavior, simpler.
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Adds a small error message improvement, in commit 49831dd ("Give the
'source ...' line being parsed when a file can't be opened").
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Bit cleaner-looking.
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Helpful when env. variables are involved. Previously only shown when the
file couldn't be found.
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Factors out some common code.
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Adds a genconfig feature that can be used to avoid needless
reconfiguration, and improves the dumpvars output format.
- Commit dd1be54 ("genconfig: Support generating lists of files and
environment vars.")
- Commit f503ea3 ("dumpvars: Make the output format copy-pasteable")
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This can be useful to avoid needless reconfiguration, by checking if any
Kconfig file or environment variable has changed value before running
genconfig.
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Adds commit 443e6bb ("menuconfig: Fix help display on Python 2").
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Do the opposite of what other people are doing and make menuconfig.py
Python 2-compatible. Turns out it's not that tricky after all, and it
makes everything consistently Python 2/3-compatible and streamlines
things.
- Commit 41b5891 ("menuconfig: Get rid of 'nonlocal'")
- Commit b2e211d ("menuconfig: Fall back on getch() when get_wch()
isn't available")
- Commit c3162be ("menuconfig: Only decode curses.erasechar() on Python
3")
- Commit fe6ed99 ("menuconfig: Import print_function for Python 2
compatibility")
- Commit c209188 ("menuconfig: Have hashbang point to 'python' instead
of 'python3'")
- Commit d577865 ("Remove Python 3 menuconfig special-casing from
Makefile patch")
- Commit 319f7f0 ("Update various comments now that menuconfig is
Python 2-compatible")
- Commit 5fbd70e ("Update setup.py now that menuconfig is Python
2-compatible")
Also investigate exactly what the Python version requirements are and tweak
and document things a bit:
- Commit e0baa79 ("Tweak python_requires to 2.7/3.2+")
- Commit 3a772a6 ("Add a section on version compatibility to the
README")
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Adds commit 22f2778 ("Mention that the load_config() message is
different for replace=False")
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Handy to know when writing merging utilities.
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Catch Exception instead, which avoids catching things like keyboard
interrupts.
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A wart of the warning control API (enable/disable_*_warnings()) is that
the current warning settings can't be queried. Querying warning settings
is useful in functions that want to temporarily enable/disable some
warning and then put things back to how they were.
kconfiglib.load_allconfig() ran into this, for example.
Make the internal warning control variables public (improve the naming
at the same time), and encourage just setting them directly. Keep the
old API for backwards compatibility.
Also remove _warn_redun_assign() and _warn_override(). They're trivial
and were called in a single place.
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Hardcoding load_config() and write_(min_)config() to write any message
to stdout is awkward, because it means that the message can't be easily
reused when stdout is the wrong place to write it to (e.g. in
menuconfig/guiconfig). This gets extra bad now that there's also the "No
change to ..." message.
Modify load_config() and write_(min_)config() to return the message as a
string instead, and have them always return a message, instead of just
when 'filename' is None and verbose=True. This makes things flexible and
straightforward.
Use the new behavior in menuconfig.py and guiconfig.py. They now show
"No change to ..." when saving a file doesn't modify it.
Tools that want to write messages to stdout should now do
print(kconf.load_config()) / print(kconf.write_config()).
There's no clean way to preserve perfect backwards compatibility here,
but keep accepting the 'verbose' argument and print a deprecation
warning if a value is ever passed for it. That way, scripts will keep
running, though possibly with less output on stdout.
This changes the meaning of the load_config() return value as well,
though I suspect it was only ever used by the menuconfig/guiconfig
interfaces.
The new behavior applies for kconfiglib.VERSION >= (12, 0, 0).
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Holds a (<major>, <minor>, <patch>) tuple, e.g. (12, 0, 0).
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Sourcing a file with an absolute path and using rsource in it triggered
a relpath() between the absolute path and $srctree. Since e.g.
symlink/../bar/ = bar/ is not guaranteed for symlinks, this could lead
to the rsource'd file not being found if $srctree pointed to a symlink.
Switch to a simpler, more textual method for stripping $srctree from
glob results, which should be robust against symlink shenanigans. This
also makes the code a bit easier to follow.
Discovered by Marc Herbert.
Piggyback some minor cleanup.
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Remove some 'Note:'s, update some stuff.
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Before writing a configuration file or header file, compare the old
contents of the file against the new contents. If there's no change,
skip the write, to avoid updating the file modification time.
This might avoid triggering redundant rebuilds depending on how the
build system is set up, and could allow for a simpler setup.
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Gives a better overview.
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