data: consolidate the YAML embed convention into an embed_data! macro

src/distro_info.rs

@@ -1,3 +1,4 @@
+use crate::data::embed_data;
 use chrono::NaiveDate;
 use lazy_static::lazy_static;
 use serde::Deserialize;
@@ -43,14 +44,11 @@ struct Data {
     dist: std::collections::HashMap<String, DistData>,
 }
 
-const DATA_YAML: &str = include_str!("../data/distro_info.yml");
-lazy_static! {
-    // The YAML is include_str!'d at compile time and statically valid; if it
-    // ever failed to parse it would be a build-time bug that cannot be
-    // recovered from at runtime, so panicking here is acceptable.
-    static ref DATA: Data = serde_yaml::from_str(DATA_YAML)
-        .expect("built-in distro_info.yml data is statically valid and must parse");
+embed_data! {
+    static ref DATA: Data = "../data/distro_info.yml"
+}
 
+lazy_static! {
     // Shared HTTP client used for all outgoing plain requests: timeouts keep
     // a hanging remote (connect or transfer) from stalling pkh indefinitely.
     // The short pool idle timeout and TCP keepalive avoid reusing keep-alive