Feat(service): add current commit at build time to /info (#139)

Cargo.toml

@@ -7,6 +7,7 @@ homepage = "https://github.com/pubky"
 repository = "https://github.com/pubky/pubky-nexus"
 license = "MIT"
 default-run = "service"
+build = "build.rs"
 
 [dependencies]
 pkarr = { git = "https://github.com/Pubky/pkarr", branch = "v3", package = "pkarr", features = [

build.rs

@@ -0,0 +1,19 @@
+use std::process::Command;
+
+fn main() {
+    // Get the latest commit hash
+    let output = Command::new("git")
+        .args(["rev-parse", "HEAD"])
+        .output()
+        .expect("Failed to execute git");
+
+    let git_hash = String::from_utf8(output.stdout).expect("Invalid UTF-8 sequence");
+    let git_hash = git_hash.trim();
+
+    // Write the commit hash to an environment variable
+    println!("cargo:rustc-env=GIT_COMMIT_HASH={}", git_hash);
+
+    // Re-run build.rs if .git/HEAD changes
+    println!("cargo:rerun-if-changed=.git/HEAD");
+    println!("cargo:rerun-if-changed=.git/refs/heads");
+}

src/models/info.rs

@@ -11,6 +11,7 @@ pub struct ServerInfo {
     pub name: String,
     pub repository: String,
     pub version: String,
+    pub commit_hash: String,
     pub last_index_snapshot: u64,
     pub base_file_url: String,
 }
@@ -26,6 +27,9 @@ impl ServerInfo {
             name: env!("CARGO_PKG_NAME").to_string(),
             repository: env!("CARGO_PKG_REPOSITORY").to_string(),
             version: env!("CARGO_PKG_VERSION").to_string(),
+            commit_hash: option_env!("GIT_COMMIT_HASH")
+                .unwrap_or("unknown")
+                .to_string(),
             last_index_snapshot,
             base_file_url: config.base_file_url,
         }