36 lines
1002 B
Rust
36 lines
1002 B
Rust
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use std::collections::hash_map::DefaultHasher;
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use std::env;
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use std::hash::Hasher;
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use std::path::PathBuf;
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use std::process::Command;
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fn main() {
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set_schema_version_env_var();
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let rev = Command::new("git")
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.arg("rev-parse")
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.arg("HEAD")
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.output()
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.ok()
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.map(|s| s.stdout)
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.and_then(|s| String::from_utf8(s).ok());
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if let Some(rev) = rev {
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if rev.len() >= 9 {
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println!("cargo:rustc-env=WBG_VERSION={}", &rev[..9]);
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}
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}
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}
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fn set_schema_version_env_var() {
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let cargo_manifest_dir = env::var("CARGO_MANIFEST_DIR").expect(
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"The `CARGO_MANIFEST_DIR` environment variable is needed to locate the schema file",
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);
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let schema_file = PathBuf::from(cargo_manifest_dir).join("src/lib.rs");
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let schema_file = std::fs::read(schema_file).unwrap();
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let mut hasher = DefaultHasher::new();
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hasher.write(&schema_file);
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println!("cargo:rustc-env=SCHEMA_FILE_HASH={}", hasher.finish());
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}
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