Added comment indicating the context under which the page was downloaded

Cargo.lock

@@ -531,6 +531,7 @@ dependencies = [
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "reqwest 0.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 

Cargo.toml

@@ -19,6 +19,10 @@ lazy_static = "1.4.0"
 regex = "1.3.1"
 url = "2.1.0"
 
+# Used to render comments indicating the time the page was saved
+# also required by reqwest as of v0.10.0
+time = "0.1.42"
+
 [dependencies.reqwest]
 version = "0.10.*"
 default-features = false

src/main.rs

@@ -71,6 +71,7 @@ fn main() {
             app_args.silent,
         )
         .unwrap();
+        let downloaded_time = time::now();
         let dom = html_to_dom(&data);
 
         walk_and_embed_assets(
@@ -85,7 +86,7 @@ fn main() {
             app_args.no_frames,
         );
 
-        let html: String = stringify_document(
+        let mut html: String = stringify_document(
             &dom.document,
             app_args.no_css,
             app_args.no_frames,
@@ -94,6 +95,17 @@ fn main() {
             app_args.isolate,
         );
 
+        html.insert_str(
+            0,
+            &format!(
+                "<!--- Downloaded from {} on {}using {} v{} -->\n",
+                &final_url,
+                downloaded_time.to_local().rfc822(),
+                env!("CARGO_PKG_NAME"),
+                env!("CARGO_PKG_VERSION"),
+            ),
+        );
+
         if app_args.output == str!() {
             println!("{}", html);
         } else {