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19 lines
557 B
Rust
19 lines
557 B
Rust
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use std::env;
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use std::fs;
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use std::path::PathBuf;
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use std::process::Command;
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fn main() {
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let mut out = PathBuf::from(env::var_os("OUT_DIR").expect("OUT_DIR"));
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out.push("rustc-version");
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let rustc = env::var_os("RUSTC").expect("RUSTC");
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let rustc_output = Command::new(rustc)
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.arg("--version")
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.output()
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.expect("rustc --version");
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if !rustc_output.status.success() {
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panic!("rustc --version: exit status {}", rustc_output.status);
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}
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fs::write(&out, rustc_output.stdout).expect("file write");
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}
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