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We end up having to edit various CMakeLists.txt all the time, and having to open
them in a different editor becomes old quite fast.
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This patch replaces the UI-from-JSON mechanism with a more
human-friendly DSL.
The current implementation simply converts the GML into a JSON object
that can be consumed by GUI::Widget::load_from_json(). The parser is
not very helpful if you make a mistake.
The language offers a very simple way to instantiate any registered
Core::Object class by simply saying @ClassName
@GUI::Label {
text: "Hello friends!"
tooltip: ":^)"
}
Layouts are Core::Objects and can be assigned to the "layout" property:
@GUI::Widget {
layout: @GUI::VerticalBoxLayout {
spacing: 2
margins: [8, 8, 8, 8]
}
}
And finally, child objects are simply nested within their parent:
@GUI::Widget {
layout: @GUI::HorizontalBoxLayout {
}
@GUI::Button {
text: "OK"
}
@GUI::Button {
text: "Cancel"
}
}
This feels a *lot* more pleasant to write than the JSON we had. The fact
that no new code was being written with the JSON mechanism was pretty
telling, so let's approach this with developer convenience in mind. :^)
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The need for SERENITY_ROOT was basically eliminated in
73c953b674c9caad40f3bf77dc44c229ef48bc0d. The existing guess
'git rev-parse --show-toplevel' should be correct in all conceivable cases.
Most code just assumes the layout in git, or depends on SERENITY_ROOT as
set in the CMakeLists.txt. *Requiring* the user to set it doesn't make
sense anymore.
While I was in there anyway, I added exit code propagation. Also, 'find' should
be a tad faster now, because it doesn't enumerate files in the large ignored
directories Build/ and Toolchain/ anymore.
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Warnings fixed:
* SC2086: Double quote to prevent globbing and word splitting.
* SC2006: Use $(...) notation instead of legacy backticked `...`
* SC2039: In POSIX sh, echo flags are undefined
* SC2209: Use var=$(command) to assign output (or quote to assign string)
* SC2164: Use 'cd ... || exit' or 'cd ... || return' in case cd fails
* SC2166: Prefer [ p ] && [ q ] as [ p -a q ] is not well defined.
* SC2034: i appears unused. Verify use (or export if used externally)
* SC2046: Quote this to prevent word splitting.
* SC2236: Use -z instead of ! -n.
There are still a lot of warnings in Kernel/run about:
- SC2086: Double quote to prevent globbing and word splitting.
However, splitting on space is intentional in this case, and not trivial to
change. Therefore ignore the warning for now - but we should fix this in
the future.
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The variable is not set anymore by the UseIt.sh script, so if a user doesn't
have it set in the .bashrc or .zshrc file already, it's not working properly.
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Ports/.port_include.sh, Toolchain/BuildIt.sh, Toolchain/UseIt.sh
have been left largely untouched due to use of Bash-exclusive
functions and variables such as $BASH_SOURCE, pushd and popd.
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