git hash and more info on server start

Author: extrawurst

Cargo.lock

@@ -4,6 +4,7 @@ version = "0.1.0"
 edition = "2024"
 authors = ["extrawurst <mail@rusticorn.com>"]
 license = "MIT OR Apache-2.0"
+build = "build.rs"
 
 [dependencies]
 anyhow = "1.0"
@@ -43,6 +44,10 @@ mockall = "0.13.1"
 testcontainers = "0.25"
 testcontainers-modules = { version = "0.13", features = ["postgres"] }
 
+[build-dependencies]
+anyhow = "1"
+vergen-gitcl = "1.0"
+
 [patch.crates-io]
 x402-axum = { git = "https://github.com/extrawurst/x402-rs.git", branch = "add-extension-for-settleresponse" }
 x402-rs = { git = "https://github.com/extrawurst/x402-rs.git", branch = "add-extension-for-settleresponse" }

Cargo.toml

@@ -0,0 +1,9 @@
+use vergen_gitcl::{Emitter, GitclBuilder};
+
+// build.rs main func
+fn main() -> anyhow::Result<()> {
+    let gitcl = GitclBuilder::default().branch(true).sha(true).build()?;
+    Emitter::default().add_instructions(&gitcl)?.emit()?;
+
+    Ok(())
+}

build.rs

@@ -33,6 +33,8 @@ mod models;
 mod schema;
 mod signals;
 
+pub const GIT_HASH: &str = env!("VERGEN_GIT_SHA");
+
 #[cfg(not(debug_assertions))]
 #[must_use]
 pub const fn is_debug() -> bool {
@@ -128,6 +130,8 @@ async fn main() -> anyhow::Result<()> {
         .install_default()
         .expect("Could not install rustls default crypto provider.");
 
+    tracing::info!(git = %GIT_HASH, log = log_level, cors_relaxed, cache_size = args.cache_size, "server starting");
+
     run_migrations(&args.db_url)?;
 
     let dbpool = DbPool::build(&args.db_url, args.db_pool_size).await?;