autoload/rustfmt.vim slowdown vim startup #527
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Solution: Replace DetectVersion() with rust-settings.
Relative rust-settings:
* rustfmt_emitmode_legacy
* rustfmt_format_range
* rustfmt_use_configfile
fixes rust-lang#524
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fix #524
rustfmt.vimwant to switch config option automatically between differencerustfmtversion according detect version and check supported option ofrustfmt. But this design causing more trouble than convenience for users.According this change, we not need to call
rustfmt --versionandrustfmt --helpanymore. If we need to support new feature:g:rustfmt_xxx_legacyrustfmtoption and it can't be config in configuration file, providing optiong:rustfmt_xxx_xxx. We don't care about it isnightlyorstable, we just make sure: If it isnightlyonly, then it work onnightlyversion. If it is both, then it work on both. That is it.g:rustfmt_use_configfile. If set to 1, using config file; otherwise using default (current is--edition 2018).more details in this comment and relative issue in vim