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Read git SHA ourselves if it is unavailable

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`git describe` *may* fail e.g. for `sudo make install`,
so we just read the SHA ourselves.
This commit is contained in:
Fabian Boehm 2024-12-09 16:57:01 +01:00
parent 5c8b6adc2c
commit 0083192fcb
1 changed files with 22 additions and 1 deletions
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23
build.rs
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@ -311,7 +311,28 @@ fn get_version(src_dir: &Path) -> String {
}
}
panic!("Could not get a version. Either set $FISH_BUILD_VERSION or install git.");
// git did not tell us a SHA either because it isn't installed,
// or because it refused (safe.directory applies to `git describe`!)
// So we read the SHA ourselves.
fn get_git_hash() -> Result<String, Box<dyn std::error::Error>> {
let gitdir = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join(".git");
// .git/HEAD contains ref: refs/heads/branch
let headpath = gitdir.join("HEAD");
let headstr = read_to_string(headpath)?;
let headref = headstr.split(" ").collect::<Vec<_>>()[1].trim();
// .git/refs/heads/branch contains the SHA
let refpath = gitdir.join(headref);
// Shorten to 9 characters (what git describe does currently)
let refstr = &read_to_string(refpath)?[0..9];
let refstr = refstr.trim();
let version = env!("CARGO_PKG_VERSION").to_owned();
Ok(version + "-g" + refstr)
}
get_git_hash().expect("Could not get a version. Either set $FISH_BUILD_VERSION or install git.")
}
#[cfg(feature = "installable")]