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#![allow(
missing_docs,
reason = "Intentional compatibility, platform, or test-only suppression."
)]
fn main() {
let git_output = std::process::Command::new("git").args(["rev-parse", "--git-dir"]).output().ok();
let git_dir = git_output.as_ref().and_then(|output| {
std::str::from_utf8(&output.stdout)
.ok()
.and_then(|s| s.strip_suffix('\n').or_else(|| s.strip_suffix("\r\n")))
});
// Tell cargo to rebuild if the head or any relevant refs change.
if let Some(git_dir) = git_dir {
let git_path = std::path::Path::new(git_dir);
let refs_path = git_path.join("refs");
if git_path.join("HEAD").exists() {
println!("cargo:rerun-if-changed={git_dir}/HEAD");
}
if git_path.join("packed-refs").exists() {
println!("cargo:rerun-if-changed={git_dir}/packed-refs");
}
if refs_path.join("heads").exists() {
println!("cargo:rerun-if-changed={git_dir}/refs/heads");
}
if refs_path.join("tags").exists() {
println!("cargo:rerun-if-changed={git_dir}/refs/tags");
}
}
let git_output = std::process::Command::new("git")
.args(["describe", "--always", "--tags", "--long", "--dirty"])
.output()
.ok();
let git_info = git_output
.as_ref()
.and_then(|output| std::str::from_utf8(&output.stdout).ok().map(str::trim));
let cargo_pkg_version = env!("CARGO_PKG_VERSION");
// Default git_describe to cargo_pkg_version
let mut git_describe = String::from(cargo_pkg_version);
if let Some(git_info) = git_info {
// If the `git_info` contains `CARGO_PKG_VERSION`, we simply use `git_info` as it is.
// Otherwise, prepend `CARGO_PKG_VERSION` to `git_info`.
if git_info.contains(cargo_pkg_version) {
// Remove the 'g' before the commit sha
let git_info = &git_info.replace('g', "");
git_describe = git_info.to_string();
} else {
git_describe = format!("v{cargo_pkg_version}-{git_info}");
}
}
println!("cargo:rustc-env=VT_CODE_GIT_INFO={git_describe}");
// macOS: the `vtcode` binary's `__eh_frame` exceeds ld64's 16 MiB
// compact-unwind limit, so every dev link warns `__eh_frame section too
// large ... performance of exception handling might be affected`
// (rust-lang/rust#159105). That warning is cosmetic — do NOT silence it
// with `-Wl,-no_compact_unwind`: forcing the DWARF fallback breaks panic
// unwinding entirely for this binary (any panicking test aborts with
// `fatal runtime error: failed to initiate panic, error 5`, SIGABRT;
// cf. rust-lang/rust#156812). Release builds use `panic = "abort"` and
// strip symbols, so unwind tables are unaffected there.
//
// (A `-no_compact_unwind` workaround lived here until 2026-09-25, when it
// was found to be the root cause of the SIGABRT failures in
// `from_validated_debug_asserts_on_non_ready_report` and
// `planning_preview_budget_keeps_midsize_payload_exec_strips_it`.)
}