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Don't always recompile the node binary on cargo run (#5577)

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There was a bug in determining the correct git files that should be
tracked. The ref extracted from `.git/HEAD` pointed to a relative path
and thus could not be found by cargo and resulted in always recompiling
the binary.
This commit is contained in:
Bastian Köcher
2020-04-08 15:05:29 +02:00
committed by GitHub
parent 0cc2e4df89
commit 01cb097ab4
1 changed files with 3 additions and 2 deletions
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substrate/utils/build-script-utils/src/git.rs
+3 -2
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@@ -16,7 +16,8 @@
use std::{env, fs, fs::File, io, io::Read, path::PathBuf};
/// Make sure the calling `build.rs` script is rerun when `.git/HEAD` changed.
/// Make sure the calling `build.rs` script is rerun when `.git/HEAD` or the ref of `.git/HEAD`
/// changed.
///
/// The file is searched from the `CARGO_MANIFEST_DIR` upwards. If the file can not be found,
/// a warning is generated.
@@ -69,7 +70,7 @@ fn get_git_paths(path: &PathBuf) -> Result<Option<Vec<PathBuf>>, io::Error> {
if ref_vec.len() == 2 {
let current_head_file = ref_vec[1];
let git_refs_path = PathBuf::from(".git").join(current_head_file);
let git_refs_path = git_dir_or_file.join(current_head_file);
Ok(Some(vec![git_head_path, git_refs_path]))
} else {