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Do not run build.rs of node-template everytime we compile (#2955)

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This commit is contained in:
Bastian Köcher
2019-06-26 10:24:40 +02:00
committed by GitHub
parent db71e0cc48
commit 050377d1c0
1 changed files with 18 additions and 2 deletions
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substrate/node-template/build.rs
+18 -2
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@@ -1,8 +1,24 @@
use std::{env, path::PathBuf};
use vergen::{ConstantsFlags, generate_cargo_keys};
const ERROR_MSG: &str = "Failed to generate metadata files";
fn main() {
generate_cargo_keys(ConstantsFlags::all()).expect(ERROR_MSG);
println!("cargo:rerun-if-changed=.git/HEAD");
generate_cargo_keys(ConstantsFlags::SHA_SHORT).expect(ERROR_MSG);
let mut manifest_dir = PathBuf::from(
env::var("CARGO_MANIFEST_DIR").expect("`CARGO_MANIFEST_DIR` is always set by cargo.")
);
while manifest_dir.parent().is_some() {
if manifest_dir.join(".git/HEAD").exists() {
println!("cargo:rerun-if-changed={}", manifest_dir.join(".git/HEAD").display());
return
}
manifest_dir.pop();
}
println!("cargo:warning=Could not find `.git/HEAD` from manifest dir!");
}