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build.rs
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build.rs
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use std::{env, process};
fn main() {
println!("cargo:rustc-env=PLATFORM={}", env::var("TARGET").unwrap());
println!("cargo:rustc-env=BUILD_DATE={}", sh("date +%Y-%m-%d"));
println!(
"cargo:rustc-env=LPMLOCATION={}",
env::var("LPMLOCATION").unwrap_or_else(|_| "~/ldpl/lpm/".into())
);
println!(
"cargo:rustc-env=GIT_REF={}",
sh("git rev-parse --short HEAD")
)
}
fn sh(args: &str) -> String {
let args: Vec<&str> = args.split(' ').collect();
let cmd = args[0];
let args: Vec<_> = args.iter().skip(1).collect();
if let Ok(output) = process::Command::new(cmd).args(&args).output() {
if !output.status.success() {
eprintln!("Error running {} {:?}", cmd, args);
return "???".to_string();
}
String::from_utf8(output.stdout).unwrap()
} else {
"???".to_string()
}
}