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Auto merge of #13290 - poliorcetics:multiple-targets, r=Veykril

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Support multiple targets for checkOnSave (in conjunction with cargo 1.64.0+)

This PR adds support for the ability to pass multiple `--target` flags when using
`cargo` 1.64.0+.

## Questions

I needed to change the type of two configurations options, but I did not plurialize the names to
avoid too much churn, should I ?

## Zulip thread

https://rust-lang.zulipchat.com/#narrow/stream/185405-t-compiler.2Frust-analyzer/topic/Issue.2013282.20.28supporting.20multiple.20targets.20with.201.2E64.2B.29

## Example

To see it working, on a macOS machine:

```sh
$ cd /tmp
$ cargo new cargo-multiple-targets-support-ra-test
$ cd !$
$ mkdir .cargo
$ echo '
[build]
target = [
    "aarch64-apple-darwin",
    "x86_64-apple-darwin",
]
' > .cargo/config.toml
$ echo '
fn main() {
    #[cfg(all(target_arch = "aarch64", target_os = "macos"))]
    {
        let a = std::fs::read_to_string("/tmp/test-read");
    }

    #[cfg(all(target_arch = "x86_64", target_os = "macos"))]
    {
        let a = std::fs::read_to_string("/tmp/test-read");
    }

    #[cfg(all(target_arch = "x86_64", target_os = "windows"))]
    {
        let a = std::fs::read_to_string("/tmp/test-read");
    }
}
' > src/main.rs
# launch your favorite editor with the version of RA from this PR
#
# You should see warnings under the first two `let a = ...` but not the third
```

## Screen

![Two panes of a terminal emulator, on the left pane is the main.rs file described above, with warnings for the first two let a = declaration, on the right pane is a display of the .cargo/config.toml, an ls of the current files in the directory and a call to cargo build to show the same warnings as in the editor on the left pane](https://user-images.githubusercontent.com/7951708/192122707-7a00606a-e581-4534-b9d5-b81c92694e8e.png)

Helps with #13282
This commit is contained in:
bors 2022-11-19 13:09:37 +00:00
commit 38fa47fd79
6 changed files with 88 additions and 36 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
crates/flycheck/src/lib.rs
View file

@ -40,7 +40,7 @@ pub enum InvocationLocation {
pub enum FlycheckConfig {
CargoCommand {
command: String,
target_triple: Option<String>,
target_triples: Vec<String>,
all_targets: bool,
no_default_features: bool,
all_features: bool,
@ -286,7 +286,7 @@ impl FlycheckActor {
let (mut cmd, args) = match &self.config {
FlycheckConfig::CargoCommand {
command,
target_triple,
target_triples,
no_default_features,
all_targets,
all_features,
@ -300,7 +300,7 @@ impl FlycheckActor {
cmd.args(&["--workspace", "--message-format=json", "--manifest-path"])
.arg(self.root.join("Cargo.toml").as_os_str());
if let Some(target) = target_triple {
for target in target_triples {
cmd.args(&["--target", target.as_str()]);
}
if *all_targets {

2
crates/project-model/src/build_scripts.rs
View file

@ -69,7 +69,7 @@ impl WorkspaceBuildScripts {
cmd.args(&["check", "--quiet", "--workspace", "--message-format=json"]);
// --all-targets includes tests, benches and examples in addition to the
// default lib and bins. This is an independent concept from the --targets
// default lib and bins. This is an independent concept from the --target
// flag below.
cmd.arg("--all-targets");

52
crates/project-model/src/cargo_workspace.rs
View file

@ -270,11 +270,7 @@ impl CargoWorkspace {
config: &CargoConfig,
progress: &dyn Fn(String),
) -> Result<cargo_metadata::Metadata> {
let target = config
.target
.clone()
.or_else(|| cargo_config_build_target(cargo_toml, &config.extra_env))
.or_else(|| rustc_discover_host_triple(cargo_toml, &config.extra_env));
let targets = find_list_of_build_targets(config, cargo_toml);
let mut meta = MetadataCommand::new();
meta.cargo_path(toolchain::cargo());
@ -294,8 +290,12 @@ impl CargoWorkspace {
}
meta.current_dir(current_dir.as_os_str());
if let Some(target) = target {
meta.other_options(vec![String::from("--filter-platform"), target]);
if !targets.is_empty() {
let other_options: Vec<_> = targets
.into_iter()
.flat_map(|target| ["--filter-platform".to_string(), target])
.collect();
meta.other_options(other_options);
}
// FIXME: Fetching metadata is a slow process, as it might require
@ -469,6 +469,19 @@ impl CargoWorkspace {
}
}
fn find_list_of_build_targets(config: &CargoConfig, cargo_toml: &ManifestPath) -> Vec<String> {
if let Some(target) = &config.target {
return [target.into()].to_vec();
}
let build_targets = cargo_config_build_target(cargo_toml, &config.extra_env);
if !build_targets.is_empty() {
return build_targets;
}
rustc_discover_host_triple(cargo_toml, &config.extra_env).into_iter().collect()
}
fn rustc_discover_host_triple(
cargo_toml: &ManifestPath,
extra_env: &FxHashMap<String, String>,
@ -499,7 +512,7 @@ fn rustc_discover_host_triple(
fn cargo_config_build_target(
cargo_toml: &ManifestPath,
extra_env: &FxHashMap<String, String>,
) -> Option<String> {
) -> Vec<String> {
let mut cargo_config = Command::new(toolchain::cargo());
cargo_config.envs(extra_env);
cargo_config
@ -507,12 +520,21 @@ fn cargo_config_build_target(
.args(&["-Z", "unstable-options", "config", "get", "build.target"])
.env("RUSTC_BOOTSTRAP", "1");
// if successful we receive `build.target = "target-triple"`
// or `build.target = ["<target 1>", ..]`
tracing::debug!("Discovering cargo config target by {:?}", cargo_config);
match utf8_stdout(cargo_config) {
Ok(stdout) => stdout
.strip_prefix("build.target = \"")
.and_then(|stdout| stdout.strip_suffix('"'))
.map(ToOwned::to_owned),
Err(_) => None,
}
utf8_stdout(cargo_config).map(parse_output_cargo_config_build_target).unwrap_or_default()
}
fn parse_output_cargo_config_build_target(stdout: String) -> Vec<String> {
let trimmed = stdout.trim_start_matches("build.target = ").trim_matches('"');
if !trimmed.starts_with('[') {
return [trimmed.to_string()].to_vec();
}
let res = serde_json::from_str(trimmed);
if let Err(e) = &res {
tracing::warn!("Failed to parse `build.target` as an array of target: {}`", e);
}
res.unwrap_or_default()
}

37
crates/rust-analyzer/src/config.rs
View file

@ -118,9 +118,11 @@ config_data! {
/// This option does not take effect until rust-analyzer is restarted.
cargo_sysroot: Option<String> = "\"discover\"",
/// Compilation target override (target triple).
// FIXME(@poliorcetics): move to multiple targets here too, but this will need more work
// than `checkOnSave_target`
cargo_target: Option<String> = "null",
/// Unsets `#[cfg(test)]` for the specified crates.
cargo_unsetTest: Vec<String> = "[\"core\"]",
cargo_unsetTest: Vec<String> = "[\"core\"]",
/// Check all targets and tests (`--all-targets`).
checkOnSave_allTargets: bool = "true",
@ -174,9 +176,13 @@ config_data! {
/// ```
/// .
checkOnSave_overrideCommand: Option<Vec<String>> = "null",
/// Check for a specific target. Defaults to
/// `#rust-analyzer.cargo.target#`.
checkOnSave_target: Option<String> = "null",
/// Check for specific targets. Defaults to `#rust-analyzer.cargo.target#` if empty.
///
/// Can be a single target, e.g. `"x86_64-unknown-linux-gnu"` or a list of targets, e.g.
/// `["aarch64-apple-darwin", "x86_64-apple-darwin"]`.
///
/// Aliased as `"checkOnSave.targets"`.
checkOnSave_target | checkOnSave_targets: CheckOnSaveTargets = "[]",
/// Toggles the additional completions that automatically add imports when completed.
/// Note that your client must specify the `additionalTextEdits` LSP client capability to truly have this feature enabled.
@ -1147,11 +1153,10 @@ impl Config {
}
Some(_) | None => FlycheckConfig::CargoCommand {
command: self.data.checkOnSave_command.clone(),
target_triple: self
.data
.checkOnSave_target
.clone()
.or_else(|| self.data.cargo_target.clone()),
target_triples: match &self.data.checkOnSave_target.0[..] {
[] => self.data.cargo_target.clone().into_iter().collect(),
targets => targets.into(),
},
all_targets: self.data.checkOnSave_allTargets,
no_default_features: self
.data
@ -1657,6 +1662,9 @@ enum InvocationStrategy {
PerWorkspace,
}
#[derive(Deserialize, Debug, Clone)]
struct CheckOnSaveTargets(#[serde(deserialize_with = "single_or_array")] Vec<String>);
#[derive(Deserialize, Debug, Clone)]
#[serde(rename_all = "snake_case")]
enum InvocationLocation {
@ -2118,6 +2126,17 @@ fn field_props(field: &str, ty: &str, doc: &[&str], default: &str) -> serde_json
"The command will be executed in the project root."
],
},
"CheckOnSaveTargets" => set! {
"anyOf": [
{
"type": "string",
},
{
"type": "array",
"items": { "type": "string" }
},
],
},
_ => panic!("missing entry for {}: {}", ty, default),
}

10
docs/user/generated_config.adoc
View file

@ -190,11 +190,15 @@ cargo check --workspace --message-format=json --all-targets
```
.
--
[[rust-analyzer.checkOnSave.target]]rust-analyzer.checkOnSave.target (default: `null`)::
[[rust-analyzer.checkOnSave.target]]rust-analyzer.checkOnSave.target (default: `[]`)::
+
--
Check for a specific target. Defaults to
`#rust-analyzer.cargo.target#`.
Check for specific targets. Defaults to `#rust-analyzer.cargo.target#` if empty.
Can be a single target, e.g. `"x86_64-unknown-linux-gnu"` or a list of targets, e.g.
`["aarch64-apple-darwin", "x86_64-apple-darwin"]`.
Aliased as `"checkOnSave.targets"`.
--
[[rust-analyzer.completion.autoimport.enable]]rust-analyzer.completion.autoimport.enable (default: `true`)::
+

17
editors/code/package.json
View file

@ -639,11 +639,18 @@
}
},
"rust-analyzer.checkOnSave.target": {
"markdownDescription": "Check for a specific target. Defaults to\n`#rust-analyzer.cargo.target#`.",
"default": null,
"type": [
"null",
"string"
"markdownDescription": "Check for specific targets. Defaults to `#rust-analyzer.cargo.target#` if empty.\n\nCan be a single target, e.g. `\"x86_64-unknown-linux-gnu\"` or a list of targets, e.g.\n`[\"aarch64-apple-darwin\", \"x86_64-apple-darwin\"]`.\n\nAliased as `\"checkOnSave.targets\"`.",
"default": [],
"anyOf": [
{
"type": "string"
},
{
"type": "array",
"items": {
"type": "string"
}
}
]
},
"rust-analyzer.completion.autoimport.enable": {