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fix(cli): Help people find possible --target values

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This commit is contained in:
Ed Page 2023-08-31 08:55:36 -05:00
parent fe37a3672c
commit adea3d148e
2 changed files with 13 additions and 1 deletions
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12
src/cargo/util/command_prelude.rs
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@ -4,6 +4,7 @@ use crate::core::{Edition, Workspace};
use crate::ops::{CompileFilter, CompileOptions, NewOptions, Packages, VersionControl};
use crate::util::important_paths::find_root_manifest_for_wd;
use crate::util::interning::InternedString;
use crate::util::is_rustup;
use crate::util::restricted_names::is_glob_pattern;
use crate::util::toml::{StringOrVec, TomlProfile};
use crate::util::validate_package_name;
@ -445,7 +446,16 @@ pub trait ArgMatchesExt {
fn targets(&self) -> CargoResult<Vec<String>> {
if self.is_present_with_zero_values("target") {
bail!("\"--target\" takes an argument.");
let cmd = if is_rustup() {
"rustup target list"
} else {
"rustc --print target-list"
};
bail!(
"\"--target\" takes an argument.
Run `{cmd}` to see possible targets."
);
}
Ok(self._values_of("target"))
}

2
tests/testsuite/list_availables.rs
View file

@ -167,6 +167,8 @@ No tests available.
.with_stderr(
"\
error: \"--target\" takes an argument.
Run `[..]` to see possible targets.
",
)
.with_status(101)