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Don't rely on PWD to find .git folder in build script

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This commit is contained in:
Max Brunsfeld 2019-02-05 11:49:38 -08:00
parent ba32f884a8
commit 6194dfc247
1 changed files with 11 additions and 1 deletions
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12
cli/build.rs
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@ -1,3 +1,4 @@
use std::path::PathBuf;
use std::{env, fs, io};
fn main() {
@ -11,7 +12,16 @@ fn main() {
}
fn read_git_sha() -> io::Result<String> {
let git_path = env::current_dir().unwrap().parent().unwrap().join(".git");
let mut repo_path = PathBuf::from(env::var("CARGO_MANIFEST_DIR").unwrap());
let mut git_path;
loop {
git_path = repo_path.join(".git");
if git_path.exists() {
break;
} else {
assert!(repo_path.pop());
}
}
let git_head_path = git_path.join("HEAD");
println!("cargo:rerun-if-changed={}", git_head_path.to_str().unwrap());
let mut head_content = fs::read_to_string(&git_head_path)?;