rust/crates/project-model/src/env.rs
2024-04-19 10:41:08 +02:00

85 lines
3.2 KiB
Rust

use base_db::Env;
use rustc_hash::FxHashMap;
use toolchain::Tool;
use crate::{utf8_stdout, ManifestPath, PackageData, Sysroot, TargetKind};
/// Recreates the compile-time environment variables that Cargo sets.
///
/// Should be synced with
/// <https://doc.rust-lang.org/cargo/reference/environment-variables.html#environment-variables-cargo-sets-for-crates>
///
/// FIXME: ask Cargo to provide this data instead of re-deriving.
pub(crate) fn inject_cargo_package_env(env: &mut Env, package: &PackageData) {
// FIXME: Missing variables:
// CARGO_BIN_NAME, CARGO_BIN_EXE_<name>
let manifest_dir = package.manifest.parent();
env.set("CARGO_MANIFEST_DIR", manifest_dir.as_str());
env.set("CARGO_PKG_VERSION", package.version.to_string());
env.set("CARGO_PKG_VERSION_MAJOR", package.version.major.to_string());
env.set("CARGO_PKG_VERSION_MINOR", package.version.minor.to_string());
env.set("CARGO_PKG_VERSION_PATCH", package.version.patch.to_string());
env.set("CARGO_PKG_VERSION_PRE", package.version.pre.to_string());
env.set("CARGO_PKG_AUTHORS", package.authors.join(":").clone());
env.set("CARGO_PKG_NAME", package.name.clone());
env.set("CARGO_PKG_DESCRIPTION", package.description.as_deref().unwrap_or_default());
env.set("CARGO_PKG_HOMEPAGE", package.homepage.as_deref().unwrap_or_default());
env.set("CARGO_PKG_REPOSITORY", package.repository.as_deref().unwrap_or_default());
env.set("CARGO_PKG_LICENSE", package.license.as_deref().unwrap_or_default());
env.set(
"CARGO_PKG_LICENSE_FILE",
package.license_file.as_ref().map(ToString::to_string).unwrap_or_default(),
);
env.set(
"CARGO_PKG_README",
package.readme.as_ref().map(ToString::to_string).unwrap_or_default(),
);
env.set(
"CARGO_PKG_RUST_VERSION",
package.rust_version.as_ref().map(ToString::to_string).unwrap_or_default(),
);
}
pub(crate) fn inject_cargo_env(env: &mut Env) {
env.set("CARGO", Tool::Cargo.path().to_string());
}
pub(crate) fn inject_rustc_tool_env(env: &mut Env, cargo_name: &str, kind: TargetKind) {
_ = kind;
// FIXME
// if kind.is_executable() {
// env.set("CARGO_BIN_NAME", cargo_name);
// }
env.set("CARGO_CRATE_NAME", cargo_name.replace('-', "_"));
}
pub(crate) fn cargo_config_env(
cargo_toml: &ManifestPath,
extra_env: &FxHashMap<String, String>,
sysroot: Option<&Sysroot>,
) -> FxHashMap<String, String> {
let mut cargo_config = Sysroot::tool(sysroot, Tool::Cargo);
cargo_config.envs(extra_env);
cargo_config
.current_dir(cargo_toml.parent())
.args(["-Z", "unstable-options", "config", "get", "env"])
.env("RUSTC_BOOTSTRAP", "1");
// if successful we receive `env.key.value = "value" per entry
tracing::debug!("Discovering cargo config env by {:?}", cargo_config);
utf8_stdout(cargo_config).map(parse_output_cargo_config_env).unwrap_or_default()
}
fn parse_output_cargo_config_env(stdout: String) -> FxHashMap<String, String> {
stdout
.lines()
.filter_map(|l| l.strip_prefix("env."))
.filter_map(|l| l.split_once(".value = "))
.map(|(key, value)| (key.to_owned(), value.trim_matches('"').to_owned()))
.collect()
}