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use std::path::Path;
use std::process::Command;
use anyhow::{bail, ensure, Result};
/// Return the Android checkout's current llvm version.
///
/// This uses android_version.get_svn_revision_number, a python function
/// that can't be executed directly. We spawn a Python3 program
/// to run it and get the result from that.
pub fn get_android_llvm_version(android_checkout: &Path) -> Result<String> {
let mut command = Command::new("python3");
let llvm_android_dir = android_checkout.join("toolchain/llvm_android");
ensure!(
llvm_android_dir.is_dir(),
"can't get android llvm version; {} is not a directory",
llvm_android_dir.display()
);
command.current_dir(llvm_android_dir);
command.args([
"-c",
"import android_version; print(android_version.get_svn_revision_number(), end='')",
]);
let output = command.output()?;
if !output.status.success() {
bail!(
"could not get android llvm version: {}",
String::from_utf8_lossy(&output.stderr)
);
}
let out_string = String::from_utf8(output.stdout)?.trim().to_string();
Ok(out_string)
}
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