42 lines
1.2 KiB
Rust
42 lines
1.2 KiB
Rust
use std::env;
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use std::process::Command;
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fn main() {
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// Set a build-time `GIT_HEAD` env var which includes the commit id;
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// such that we can tell which code is running.
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let hash = Command::new("git")
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.arg("rev-parse")
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.arg("--short")
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.arg("HEAD")
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.output()
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.ok()
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.and_then(|output| {
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if output.status.success() {
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String::from_utf8(output.stdout).ok()
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} else {
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None
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}
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})
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.unwrap_or(env::var("GIT_HEAD").unwrap_or("unknown".into()));
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// Set a build-time `GIT_COMMIT_TIME` env var which includes the commit time.
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let commit_time = Command::new("git")
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.arg("show")
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.arg("--format=%ct")
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.arg("HEAD")
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.output()
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.ok()
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.and_then(|output| {
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if output.status.success() {
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String::from_utf8(output.stdout).ok()
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} else {
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None
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}
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})
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.unwrap_or(0.to_string());
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println!("cargo:rustc-env=GIT_COMMIT_TIME={commit_time}");
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println!("cargo:rustc-env=GIT_HEAD={hash}");
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println!("cargo:rustc-rerun-if-changed=.git/HEAD");
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}
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