Rename cargo-update to cargo-updat

[alexcrichton]

Any executable with the substring "update" on windows is subject to requiring
privilege escalation. For now we just rename the actual executable to
cargo-updat but rename all usage of it so that it's not actually visible.

Closes #393

[Locke23rus]

How about another word sync/upgrade/pull ?

[whitequark]

You can add a manifest instead of renaming, e.g. see https://github.com/0install/0install/blob/master/ocaml/0install.exe.manifest.

[alexcrichton]

@whitequark, rustc itself started doing this as part of rust-lang/rust#10878, but it was reverted in rust-lang/rust#11221. The tracking issue for doing this is rust-lang/rust#11207. Adding a manifest should be part of rustc, not cargo

@Locke23rus, we could, but I think that "update" is really the right word for this and the ergonomics are not compromised here at all, so it's not too much of a worry.

[conradkleinespel]

I'm pro renaming it to something that is an actual word as well. cargo-updat just makes it look broken IMO.

I like the suggestions of @Locke23rus. cargo-upgrade would be a good option I think: it is simple and at least on UNIX, a lot are used to either brew upgrade or apt-get upgrade. Or how about cargo-update for UNIX platforms and cargo-updat for Windows? Don't know if that'd be hard to implement, just suggesting.

[SimonSapin]

cargo-updat is fine: users typically never see it. They still type cargo update (note the space.)

https://github.com/rust-lang/cargo/pull/413/files#diff-847cd20bb1f94e626f11c2eb7358f4beR192

let cmd = if cmd == "update" {"updat"} else {cmd};
let command_exe = format!("cargo-{}{}", cmd, os::consts::EXE_SUFFIX);

[nathantypanski]

Just rename the binary to cargo-up. People will stop complaining that it's not a whole word, and you can use the same explanation as given here, and it still doesn't matter because users don't see it.

Edit: I will admit that when I first read the subject I thought alexcrichton had lost his mind and checked my calendar to make sure it's not April. It perhaps might confuse future code contributors if you name it cargo-updat.

[conradkleinespel]

@nathantypanski 👍

[alexcrichton]

I'm going to take a different strategy.