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build.rs
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80 lines (67 loc) · 2.15 KB
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use std::env;
use std::path::PathBuf;
use std::process::Command;
fn git_short_sha(manifest_dir: &str) -> Option<String> {
let output = Command::new("git")
.args(["rev-parse", "--short", "HEAD"])
.current_dir(manifest_dir)
.output()
.ok()?;
if !output.status.success() {
return None;
}
let short_sha = String::from_utf8(output.stdout).ok()?;
let trimmed = short_sha.trim();
if trimmed.is_empty() {
None
} else {
Some(trimmed.to_string())
}
}
fn emit_git_rerun_hints(manifest_dir: &str) {
let output = Command::new("git")
.args(["rev-parse", "--git-dir"])
.current_dir(manifest_dir)
.output();
let Ok(output) = output else {
return;
};
if !output.status.success() {
return;
}
let Ok(git_dir_raw) = String::from_utf8(output.stdout) else {
return;
};
let git_dir_raw = git_dir_raw.trim();
if git_dir_raw.is_empty() {
return;
}
let git_dir = if PathBuf::from(git_dir_raw).is_absolute() {
PathBuf::from(git_dir_raw)
} else {
PathBuf::from(manifest_dir).join(git_dir_raw)
};
println!("cargo:rerun-if-changed={}", git_dir.join("HEAD").display());
println!("cargo:rerun-if-changed={}", git_dir.join("refs").display());
}
fn main() {
println!("cargo:rerun-if-changed=build.rs");
println!("cargo:rerun-if-env-changed=ZEROCLAW_GIT_SHORT_SHA");
let manifest_dir = env::var("CARGO_MANIFEST_DIR").unwrap_or_else(|_| ".".to_string());
emit_git_rerun_hints(&manifest_dir);
let package_version = env::var("CARGO_PKG_VERSION").unwrap_or_else(|_| "0.0.0".to_string());
let short_sha = env::var("ZEROCLAW_GIT_SHORT_SHA")
.ok()
.filter(|v| !v.trim().is_empty())
.or_else(|| git_short_sha(&manifest_dir));
let build_version = if let Some(sha) = short_sha.as_deref() {
format!("{package_version} ({sha})")
} else {
package_version
};
println!("cargo:rustc-env=ZEROCLAW_BUILD_VERSION={build_version}");
println!(
"cargo:rustc-env=ZEROCLAW_GIT_SHORT_SHA={}",
short_sha.unwrap_or_default()
);
}