DuProcess
43 lines
1.5 KiB
Rust
43 lines
1.5 KiB
Rust
use std::env;
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use std::process::Command;
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fn git(args: &[&str]) -> Option<String> {
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let output = Command::new("git").args(args).output().ok()?;
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if !output.status.success() {
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return None;
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}
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let text = String::from_utf8(output.stdout).ok()?;
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Some(text.trim().to_string())
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}
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fn main() {
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println!("cargo:rerun-if-changed=.git/HEAD");
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println!("cargo:rerun-if-changed=.git/index");
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println!("cargo:rerun-if-env-changed=DOSH_BUILD_GIT_HASH");
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println!("cargo:rerun-if-env-changed=DOSH_BUILD_COMMIT_DATE");
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println!("cargo:rerun-if-env-changed=DOSH_BUILD_GIT_DIRTY");
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let hash = env::var("DOSH_BUILD_GIT_HASH")
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.ok()
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.filter(|value| !value.is_empty())
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.or_else(|| git(&["rev-parse", "--short=12", "HEAD"]))
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.unwrap_or_else(|| "unknown".into());
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let date = env::var("DOSH_BUILD_COMMIT_DATE")
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.ok()
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.filter(|value| !value.is_empty())
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.or_else(|| git(&["show", "-s", "--format=%cs", "HEAD"]))
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.unwrap_or_else(|| "unknown".into());
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let dirty = match env::var("DOSH_BUILD_GIT_DIRTY").ok().as_deref() {
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Some("1" | "true" | "yes" | "+dirty") => "+dirty",
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Some(_) => "",
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None => Command::new("git")
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.args(["diff", "--quiet", "--ignore-submodules", "--"])
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.status()
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.map(|status| if status.success() { "" } else { "+dirty" })
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.unwrap_or(""),
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};
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println!("cargo:rustc-env=DOSH_GIT_HASH={hash}{dirty}");
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println!("cargo:rustc-env=DOSH_COMMIT_DATE={date}");
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}
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