Improve error message for an array value in the manifest
Fixes https://github.com/rust-lang/cargo/issues/10942
The error message will be:
```
error: failed to parse manifest at `/Users/..`
Caused by:
invalid type: string "Ky", expected an array for key `package.authors`
```
Enable two windows tests
These two tests were disabled on Windows a long time ago. AFAICT, the reasons are no longer relevant, and it should be safe to enable these tests. See each commit for a more detailed exposition.
Improve error msg for get target runner
Actually, we'll get this config from three places. So this msg may be confusing when you set it up in `.cargo/config.toml` or pass it by `--config`.
We already printed the location of the config, so I think it's OK to change it to `configurations`.
Only override published resolver when the workspace is different
### What does this PR try to resolve?
Ensures when publishing a package that uses an implicit `resolver = "1"` to maintain an MSRV before the `resolver` key was stabilized the implicitness is retained rather than being turned into an explicit setting.
fixes#10954 (assuming that the workspace and its packages are configured with a consistent resolver)
Packages in the local workspace can't get updated this way; the user
just needs to point to a different source, or otherwise update the
package themselves.
People encountering a dependency with a newer `rust-version` requirement
may not know about `cargo update --precise`, or may consider alternate
approaches that may be harmful (such as pinning with a `=` dependency).
Provide specific guidance in the error message.
If the user is using `cargo install`, suggest `cargo install --locked` instead.
Test if reserved filenames are allowed in Windows
Recent versions of Windows have removed the limitation on filenames like `aux` or `con`. This change allows the `package::reserved_windows_name` to still pass by first trying to create a file with a reserved name to see if Windows supports it. If so, it skips the rest of the test. Otherwise, we keep the same behavior as before.
The previous commit tests whether the current machine supports Windows
restricted names by creating a file and checking whether that succeeds.
This commit reworks this testto use GetFullPathNameW, which can be done
without having to create and remove new files.
Recent versions of Windows have removed the limitation on filenames like
`aux` or `con`. This change allows the `package::reserved_windows_name`
to still pass by first trying to create a file with a reserved name to
see if Windows supports it. If so, it skips the rest of the test.
Otherwise, we keep the same behavior as before.
Add reasons to all ignored tests.
This adds a reason string to all `#[ignore]` attributes. This will be displayed when running the test (since 1.61), which can help quickly see and identify why tests are being ignored. It looks roughly like:
```
test basic ... ignored, requires nightly, CARGO_RUN_BUILD_STD_TESTS must be set
test build::simple_terminal_width ... ignored, --diagnostic-width is stabilized in 1.64
test check_cfg::features_with_cargo_check ... ignored, --check-cfg is unstable
test plugins::panic_abort_plugins ... ignored, requires rustc_private
```
This test was ignored in https://github.com/rust-lang/cargo/pull/3189
without much discussion of explaining why.
AFAICT, this test works fine on Windows on both MSVC and GNU.
Empty paths do the expected behavior (preventing cargo from running
rustc). There are some special rules on Windows about discovering the
process to run (such as searching the app's launch directory), but
I do not think that is relevant here. Confirmed by trying to run
`cargo check` in this test fails to find `rustc`.
Fix formats_source test requiring rustfmt.
The requirements added in #9892 that `rustfmt` must be present doesn't work in the `rust-lang/rust` environment. There are two issues:
* Cargo is run without using rustup. If you also have rustup installed, the test will fail because the `rustfmt` binary found in `PATH` will fail to choose a toolchain because HOME points to the sandbox home which does not have a rustup configuration.
* rust-lang/rust CI uninstalls rustup, and does not have rustfmt in PATH at all. It is not practical to make rustfmt available there.
The solution here is to just revert the behavior back to where it was where it checks if it can run `rustfmt` in the sandbox. This should work for anyone who has a normal rustup installation (including Cargo's CI). If running the testsuite without rustup, then the test will be skipped.
This also includes a small enhancement to provide better error information when rustfmt fails.
This is done in the command, rather than in the op,
- To consistently construct the `Workspace`
- It is more composable as an API
A downside is we update the git dependencies a second time.
We are not rolling back on error.
- For some errors, the user might want to debug what went wrong
- Rollback adds its own complications and risks, including since its
non-atomic
Fixes#10901
This is prep for #10901 to avoid the most common failure case for the
lock file. We are assuming if the users action caused a change in the
manifes, then it will cause a change in the lock file. This isn't
entirely true but close enough and I think these semantics can make
sense.
