45 lines
918 B
Rust
45 lines
918 B
Rust
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use sha2::{Sha256, Digest};
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use hex::ToHex;
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/// A unique description of an origin, from where a domain might be served.
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pub enum Descr<'a> {
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Git{url: &'a str, branch: &'a str},
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}
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impl<'a> Descr<'a> {
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/// Returns a globally unique string for the Descr.
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pub fn id(&'a self) -> String {
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let mut h = Sha256::new();
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let mut h_update = |b: &str| {
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h.update(b);
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h.update("\n");
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};
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match self {
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Descr::Git{url, branch} => {
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h_update("git");
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h_update(url);
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h_update(branch);
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}
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}
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h.finalize().encode_hex::<String>()
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}
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}
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#[cfg(test)]
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mod descr_tests {
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#[test]
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fn id() {
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assert_eq!(
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super::Descr::Git{url:"foo", branch:"bar"}.id(),
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"424130b9e6c1675c983b4b97579877e16d8a6377e4fe10970e6d210811c3b7ac",
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)
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}
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//}
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