75 lines
2.3 KiB
Rust
75 lines
2.3 KiB
Rust
use std::path::{Path, PathBuf};
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use std::process::{Command, Stdio};
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pub(crate) fn get_rustc_version() -> String {
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let version_info =
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Command::new("rustc").stderr(Stdio::inherit()).args(&["-V"]).output().unwrap().stdout;
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String::from_utf8(version_info).unwrap()
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}
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pub(crate) fn get_host_triple() -> String {
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let version_info =
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Command::new("rustc").stderr(Stdio::inherit()).args(&["-vV"]).output().unwrap().stdout;
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String::from_utf8(version_info)
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.unwrap()
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.lines()
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.to_owned()
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.find(|line| line.starts_with("host"))
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.unwrap()
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.split(":")
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.nth(1)
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.unwrap()
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.trim()
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.to_owned()
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}
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pub(crate) fn get_rustc_path() -> PathBuf {
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let rustc_path = Command::new("rustup")
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.stderr(Stdio::inherit())
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.args(&["which", "rustc"])
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.output()
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.unwrap()
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.stdout;
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Path::new(String::from_utf8(rustc_path).unwrap().trim()).to_owned()
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}
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pub(crate) fn get_default_sysroot() -> PathBuf {
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let default_sysroot = Command::new("rustc")
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.stderr(Stdio::inherit())
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.args(&["--print", "sysroot"])
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.output()
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.unwrap()
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.stdout;
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Path::new(String::from_utf8(default_sysroot).unwrap().trim()).to_owned()
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}
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pub(crate) fn get_file_name(crate_name: &str, crate_type: &str) -> String {
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let file_name = Command::new("rustc")
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.stderr(Stdio::inherit())
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.args(&[
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"--crate-name",
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crate_name,
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"--crate-type",
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crate_type,
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"--print",
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"file-names",
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"-",
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])
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.output()
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.unwrap()
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.stdout;
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let file_name = String::from_utf8(file_name).unwrap().trim().to_owned();
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assert!(!file_name.contains('\n'));
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assert!(file_name.contains(crate_name));
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file_name
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}
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/// Similar to `get_file_name`, but converts any dashes (`-`) in the `crate_name` to
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/// underscores (`_`). This is specially made for the the rustc and cargo wrappers
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/// which have a dash in the name, and that is not allowed in a crate name.
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pub(crate) fn get_wrapper_file_name(crate_name: &str, crate_type: &str) -> String {
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let crate_name = crate_name.replace('-', "_");
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let wrapper_name = get_file_name(&crate_name, crate_type);
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wrapper_name.replace('_', "-")
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}
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