From 28a8a15b6b24879c133d9ef8f727b846e629237b Mon Sep 17 00:00:00 2001
From: Xevion <xevion@xevion.dev>
Date: Sat, 13 Sep 2025 18:51:48 -0500
Subject: [PATCH] feat: embed git commit into binary, provide link on frontend

---
 build.rs                 | 32 ++++++++++++++++++++++++++++++++
 src/web/routes.rs        |  4 ++++
 web/src/lib/api.ts       |  4 ++++
 web/src/routes/index.tsx | 23 +++++++++++++++++++++++
 4 files changed, 63 insertions(+)
 create mode 100644 build.rs

diff --git a/build.rs b/build.rs
new file mode 100644
index 0000000..5e521b8
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,32 @@
+use std::process::Command;
+
+fn main() {
+    // Get the current Git commit hash
+    let output = Command::new("git").args(["rev-parse", "HEAD"]).output();
+
+    let git_hash = match output {
+        Ok(output) => {
+            if output.status.success() {
+                String::from_utf8_lossy(&output.stdout).trim().to_string()
+            } else {
+                "unknown".to_string()
+            }
+        }
+        Err(_) => "unknown".to_string(),
+    };
+
+    // Get the short hash (first 7 characters)
+    let short_hash = if git_hash != "unknown" && git_hash.len() >= 7 {
+        git_hash[..7].to_string()
+    } else {
+        git_hash.clone()
+    };
+
+    // Set the environment variables that will be available at compile time
+    println!("cargo:rustc-env=GIT_COMMIT_HASH={}", git_hash);
+    println!("cargo:rustc-env=GIT_COMMIT_SHORT={}", short_hash);
+
+    // Rebuild if the Git commit changes
+    println!("cargo:rerun-if-changed=.git/HEAD");
+    println!("cargo:rerun-if-changed=.git/refs/heads");
+}
diff --git a/src/web/routes.rs b/src/web/routes.rs
index d0e6b43..c5b01ef 100644
--- a/src/web/routes.rs
+++ b/src/web/routes.rs
@@ -239,6 +239,10 @@ async fn status(State(_state): State<BannerState>) -> Json<Value> {
         "banner_api": {
             "status": "connected"
         },
+        "git": {
+            "commit": env!("GIT_COMMIT_HASH"),
+            "short": env!("GIT_COMMIT_SHORT")
+        },
         "timestamp": chrono::Utc::now().to_rfc3339()
     }))
 }
diff --git a/web/src/lib/api.ts b/web/src/lib/api.ts
index bbf8d57..4e66039 100644
--- a/web/src/lib/api.ts
+++ b/web/src/lib/api.ts
@@ -20,6 +20,10 @@ export interface StatusResponse {
   banner_api: {
     status: string;
   };
+  git: {
+    commit: string;
+    short: string;
+  };
   timestamp: string;
 }
 
diff --git a/web/src/routes/index.tsx b/web/src/routes/index.tsx
index 9052188..96f3f3f 100644
--- a/web/src/routes/index.tsx
+++ b/web/src/routes/index.tsx
@@ -234,6 +234,29 @@ function App() {
             </Flex>
           </Card>
         )}
+        {status?.git?.commit && (
+          <Flex justify="center" style={{ marginTop: "12px" }}>
+            <Text
+              size="1"
+              style={{
+                color: "#8B949E",
+                textDecoration: "none",
+              }}
+            >
+              <a
+                href={`https://github.com/Xevion/banner/commit/${status.git.commit}`}
+                target="_blank"
+                rel="noopener noreferrer"
+                style={{
+                  color: "inherit",
+                  textDecoration: "none",
+                }}
+              >
+                GitHub
+              </a>
+            </Text>
+          </Flex>
+        )}
       </Flex>
     </div>
   );