feat: Respect .cargo/config.toml
#8774
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Veykril
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matklad
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May 8, 2021
matklad
reviewed
May 8, 2021
Veykril
changed the title
Veykril
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.cargo/config.toml
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bors r+ |
Veykril
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.cargo/config.toml.cargo/config.toml
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Implements
cargo/.configbuild target and cfg access by using unstable cargo options:cargo config getto read the target triple out of the config to pass tocargo metadata--filter-platformcargo rustc --printto read out therustc_cfgs, this causes us to honorrustflagsand the like.If those commands fail, due to not having a nightly toolchain present for example, they will fall back to invoking rustc directly as we currently do.
I personally think it should be fine to use these unstable options as they are unlikely to change(even if they did it shouldn't be a problem due to the fallback) and don't burden the user if they do not have a nightly toolchain at hand since we fall back to the previous behaviour.
cc #8741
Closes #6604, Closes #5904, Closes #8430, Closes #8480