add --check flag to cargo fmt #3890
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topecongiro
approved these changes
Oct 26, 2019
| @@ -104,6 +108,12 @@ fn execute() -> i32 { | |||
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| let strategy = CargoFmtStrategy::from_opts(&opts); | |||
| let mut rustfmt_args = opts.rustfmt_options; | |||
| if opts.check { | |||
| let check_flag = String::from("--check"); | |||
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Nit: we can defer the allocation of a String until we absolutely need it:
let check_flag = "--check";
if !rustfmt_args.contains(check_flag) {
rustfmt_args.push(check_flag.to_owned());
}There was a problem hiding this comment.
Unfortunately I believe the limitations with Vec::contains that we ran into in #3752 (comment) still exist which prevent using a literal as an arg.
On a related note, I was going to volunteer to work on #3587 and while working on that I'll also look into consolidating the way cargo fmt is transforming/passing flags (like --message-format --> --emit, --check, etc.) to rustfmt which I think may help remove some of these Vec::contains
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Oh my god, I am so dumb 😩 Sorry about that!
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|
backported in #4993 |
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Resolves #3888