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Rerun build script only when necessary

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cyqsimon 2023-11-02 23:59:20 +08:00
parent 9f7d70f642
commit 7cfd1e0d78
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1 changed files with 2 additions and 0 deletions
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build/syntax_mapping.rs
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@ -199,6 +199,8 @@ fn read_all_mappings() -> anyhow::Result<MappingList> {
/// Build the static syntax mappings defined in /src/syntax_mapping/builtins/
/// into a .rs source file, which is to be inserted with `include!`.
pub fn build_static_mappings() -> anyhow::Result<()> {
println!("cargo:rerun-if-changed=src/syntax_mapping/builtins/");
let mappings = read_all_mappings()?;
let codegen_path = Path::new(&env::var_os("OUT_DIR").ok_or(anyhow!("OUT_DIR is unset"))?)