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aya/xtask/src/lib.rs

47 lines
1.6 KiB
Rust

use anyhow::{anyhow, Context as _, Result};
use std::{
fs,
path::{Path, PathBuf},
process::Command,
};
use which::which;
pub const AYA_BUILD_INTEGRATION_BPF: &str = "AYA_BUILD_INTEGRATION_BPF";
pub const LIBBPF_DIR: &str = "xtask/libbpf";
pub fn exec(cmd: &mut Command) -> Result<()> {
let status = cmd
.status()
.with_context(|| format!("failed to run {cmd:?}"))?;
match status.code() {
Some(code) => match code {
0 => Ok(()),
code => Err(anyhow!("{cmd:?} exited with code {code}")),
},
None => Err(anyhow!("{cmd:?} terminated by signal")),
}
}
// Create a symlink in the out directory to work around the fact that cargo ignores anything
// in `$CARGO_HOME`, which is also where `cargo install` likes to place binaries. Cargo will
// stat through the symlink and discover that the binary has changed.
//
// This was introduced in https://github.com/rust-lang/cargo/commit/99f841c.
//
// TODO(https://github.com/rust-lang/cargo/pull/12369): Remove this when the fix is available.
pub fn create_symlink_to_binary(out_dir: &Path, binary_name: &str) -> Result<PathBuf> {
let binary = which(binary_name).unwrap();
let symlink = out_dir.join(binary_name);
match fs::remove_file(&symlink) {
Ok(()) => {}
Err(err) => {
if err.kind() != std::io::ErrorKind::NotFound {
return Err(err).context(format!("failed to remove symlink {}", symlink.display()));
}
}
}
std::os::unix::fs::symlink(binary, &symlink)
.with_context(|| format!("failed to create symlink {}", symlink.display()))?;
Ok(symlink)
}