From cf2540332fed458d374420d3452196797a45e09b Mon Sep 17 00:00:00 2001
From: Pierce Thompson <insprill@gmail.com>
Date: Mon, 25 Mar 2024 23:26:17 -0400
Subject: [PATCH] Add link to exact Git repo at commit/tag

---
 build.rs            | 53 ++++++++++++++++++++++++++++++++++++++++++++-
 templates/base.html |  2 +-
 2 files changed, 53 insertions(+), 2 deletions(-)

diff --git a/build.rs b/build.rs
index 6a5a3d5..a583417 100644
--- a/build.rs
+++ b/build.rs
@@ -4,6 +4,34 @@ use std::env;
 use std::process::Command;
 
 fn main() {
+    set_version();
+    set_repo_url();
+}
+
+fn set_repo_url() {
+    let cargo_repo_url = env!("CARGO_PKG_REPOSITORY");
+    let mut repo_url = cargo_repo_url.to_string();
+
+    if is_git_repo() {
+        repo_url = get_remote_url();
+        if !repo_url.ends_with('/') {
+            repo_url.push('/');
+        }
+        if repo_url.starts_with("https://github.com/") {
+            if is_git_tagged() {
+                repo_url.push_str(&format!("releases/tag/{}", get_git_tag()));
+            } else {
+                repo_url.push_str(&format!("commit/{}", get_git_hash()));
+            }
+        }
+    } else {
+        println!("Not a Git repo! Skipping repo URL metadata");
+    }
+
+    println!("cargo:rustc-env=IN_REPO_URL={}", repo_url);
+}
+
+fn set_version() {
     let cargo_version = env!("CARGO_PKG_VERSION");
     let mut version = cargo_version.to_string();
 
@@ -64,10 +92,33 @@ fn is_git_tagged() -> bool {
         return var == "true";
     }
 
+    get_git_tag_info().0
+}
+
+fn get_git_tag() -> String {
+    get_git_tag_info().1
+}
+
+fn get_git_tag_info() -> (bool, String) {
     let output = Command::new("git")
         .args(["describe", "--tags", "--exact-match"])
         .output()
         .expect("Failed to execute git describe command");
 
-    output.status.success()
+    let is_tagged = output.status.success();
+    let tag = String::from_utf8(output.stdout).unwrap().trim().to_string();
+
+    (is_tagged, tag)
+}
+
+fn get_remote_url() -> String {
+    let remote_url = Command::new("git")
+        .args(["remote", "get-url", "origin"])
+        .output()
+        .expect("Failed to execute git command");
+
+    String::from_utf8(remote_url.stdout)
+        .unwrap()
+        .trim()
+        .to_string()
 }
diff --git a/templates/base.html b/templates/base.html
index f66a864..283bcd1 100644
--- a/templates/base.html
+++ b/templates/base.html
@@ -19,7 +19,7 @@
 <nav>
     <div class="inner-nav">
         <div class="nav-item">
-            <a class="site-version" href="{{env!("CARGO_PKG_REPOSITORY")}}">v{{ env!("IN_VERSION") }}</a>
+            <a class="site-version" href="{{env!("IN_REPO_URL")}}">v{{ env!("IN_VERSION") }}</a>
         </div>
         <a href="/" class="site-name">Intellectual</a>
         <div class="nav-item right">