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build: validate CFG_SRC_URL and simplify CFG_RELEASE handling

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This commit is contained in:
oxalica 2024-09-25 12:45:34 -04:00
parent fa14844d0d
commit fac146e859
6 changed files with 32 additions and 12 deletions
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20
blahd/build.rs Normal file
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@ -0,0 +1,20 @@
fn main() {
// No rerun on file changes.
println!("cargo::rerun-if-changed=build.rs");
println!("cargo::rerun-if-env-changed=CFG_RELEASE");
if std::env::var_os("CFG_RELEASE").is_none() {
let vers = std::env::var("CARGO_PKG_VERSION").expect("cargo should set it");
println!("cargo::rustc-env=CFG_RELEASE={vers}");
}
println!("cargo::rerun-if-env-changed=CFG_SRC_URL");
if let Some(url) = std::env::var_os("CFG_SRC_URL") {
url.to_str()
.expect("CFG_SRC_URL is not in UTF-8")
.parse::<url::Url>()
.expect("CFG_SRC_URL is not a valid URL");
} else {
println!("cargo::warning=CFG_SRC_URL is not set");
}
}