2019-12-09 14:59:04 +00:00
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//! Just embed git-hash to `--version`
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2020-02-21 02:04:03 +00:00
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use std::{env, path::PathBuf, process::Command};
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2019-12-09 14:59:04 +00:00
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fn main() {
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2020-02-20 08:47:12 +00:00
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set_rerun();
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2020-02-21 02:04:03 +00:00
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2020-06-18 12:31:32 +00:00
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let rev = env::var("RUST_ANALYZER_REV").ok().or_else(rev).unwrap_or_else(|| "???????".to_string());
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2019-12-09 14:59:04 +00:00
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println!("cargo:rustc-env=REV={}", rev)
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}
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2020-02-21 02:04:03 +00:00
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fn set_rerun() {
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2020-06-18 12:31:32 +00:00
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println!("cargo:rerun-if-env-changed=RUST_ANALYZER_REV");
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2020-02-21 02:04:03 +00:00
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let mut manifest_dir = PathBuf::from(
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env::var("CARGO_MANIFEST_DIR").expect("`CARGO_MANIFEST_DIR` is always set by cargo."),
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);
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while manifest_dir.parent().is_some() {
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if manifest_dir.join(".git/HEAD").exists() {
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let git_dir = manifest_dir.join(".git");
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println!("cargo:rerun-if-changed={}", git_dir.join("HEAD").display());
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// current branch ref
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if let Ok(output) =
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Command::new("git").args(&["rev-parse", "--symbolic-full-name", "HEAD"]).output()
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{
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if let Ok(ref_link) = String::from_utf8(output.stdout) {
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println!("cargo:rerun-if-changed={}", git_dir.join(ref_link).display());
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}
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}
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return;
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}
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manifest_dir.pop();
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}
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println!("cargo:warning=Could not find `.git/HEAD` from manifest dir!");
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}
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2019-12-09 14:59:04 +00:00
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fn rev() -> Option<String> {
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let output = Command::new("git").args(&["rev-parse", "HEAD"]).output().ok()?;
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let stdout = String::from_utf8(output.stdout).ok()?;
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let short_hash = stdout.get(0..7)?;
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Some(short_hash.to_owned())
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}
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