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//! ref: composer/src/Composer/Compiler.php
//!
//! Generates a constant value of `composer::COMPOSER_DEV_WARNING_TIME`.
fn git(repo_root: &std::path::Path, args: &[&str]) -> Option<String> {
let output = std::process::Command::new("git")
.args(args)
.current_dir(repo_root)
.output()
.ok()?;
if !output.status.success() {
return None;
}
Some(String::from_utf8(output.stdout).ok()?.trim().to_string())
}
fn main() {
println!("cargo::rerun-if-changed=build.rs");
let manifest_dir = std::env::var("CARGO_MANIFEST_DIR").unwrap();
let repo_root = std::path::Path::new(&manifest_dir)
.parent()
.unwrap()
.parent()
.unwrap();
if let Some(git_dir) = git(repo_root, &["rev-parse", "--git-dir"]) {
let git_dir = repo_root.join(git_dir);
for path in ["HEAD", "packed-refs", "refs/tags"] {
let path = git_dir.join(path);
if path.exists() {
println!("cargo::rerun-if-changed={}", path.display());
}
}
}
let dev_warning_time =
if git(repo_root, &["describe", "--tags", "--exact-match", "HEAD"]).is_some() {
None
} else {
git(repo_root, &["log", "-n1", "--pretty=%ct", "HEAD"])
.and_then(|date| date.parse::<i64>().ok())
.map(|date| date + 60 * 86400)
};
let out_dir = std::env::var("OUT_DIR").unwrap();
std::fs::write(
std::path::Path::new(&out_dir).join("dev_warning_time.rs"),
match dev_warning_time {
Some(time) => format!("Some({time})"),
None => "None".to_string(),
},
)
.unwrap();
}
|
