60 lines
2.2 KiB
Rust
60 lines
2.2 KiB
Rust
use std::{collections::BTreeSet, env, path::Path};
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use build_data::{format_timestamp, get_source_time};
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use shadow_rs::{CARGO_METADATA, CARGO_TREE, ShadowBuilder};
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fn configure_rerun_if_head_commit_changed() {
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let mut current = Path::new(env!("CARGO_MANIFEST_DIR")).to_path_buf();
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// skip if no valid-looking git repository could be found
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while let Ok((dir, _)) = gix_discover::upwards(current.as_path()) {
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match dir {
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gix_discover::repository::Path::Repository(git_dir) => {
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unreachable!(
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"build.rs should never be placed in a git bare repository: {}",
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git_dir.display()
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);
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}
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gix_discover::repository::Path::WorkTree(work_dir) => {
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let git_refs_heads = work_dir.join(".git/refs/heads");
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println!("cargo::rerun-if-changed={}", git_refs_heads.display());
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break;
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}
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gix_discover::repository::Path::LinkedWorkTree { work_dir, .. } => {
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current = work_dir
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.parent()
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.expect("submodule's work_dir must have parent")
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.to_path_buf();
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continue;
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}
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};
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}
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}
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fn main() -> shadow_rs::SdResult<()> {
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configure_rerun_if_head_commit_changed();
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println!(
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"cargo::rustc-env=SOURCE_TIMESTAMP={}",
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if let Ok(t) = get_source_time() {
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format_timestamp(t)?
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} else {
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"".to_string()
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}
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);
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build_data::set_BUILD_TIMESTAMP();
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// The "CARGO_WORKSPACE_DIR" is set manually (not by Rust itself) in Cargo config file, to
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// solve the problem where the "CARGO_MANIFEST_DIR" is not what we want when this repo is
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// made as a submodule in another repo.
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let src_path = env::var("CARGO_WORKSPACE_DIR").or_else(|_| env::var("CARGO_MANIFEST_DIR"))?;
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let out_path = env::var("OUT_DIR")?;
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let _ = ShadowBuilder::builder()
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.src_path(src_path)
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.out_path(out_path)
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// exclude these two large constants that we don't need
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.deny_const(BTreeSet::from([CARGO_METADATA, CARGO_TREE]))
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.build()?;
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Ok(())
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}
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