cli: Fix update message for rustup itself

Signed-off-by: Daniel Silverstone <dsilvers@digital-scurf.org>

Author: kinnison

src/cli/common.rs

@@ -183,7 +183,7 @@ fn show_channel_updates(
 ) -> Result<()> {
     let data = toolchains.into_iter().map(|(name, result)| {
         let toolchain = cfg.get_toolchain(&name, false).unwrap();
-        let version = toolchain.rustc_version();
+        let mut version: String = toolchain.rustc_version().into();
 
         let banner;
         let color;
@@ -194,11 +194,19 @@ fn show_channel_updates(
                 color = Some(term2::color::GREEN);
             }
             Ok(UpdateStatus::Updated(v)) => {
-                previous_version = Some(v);
+                if name == "rustup" {
+                    previous_version = Some(env!("CARGO_PKG_VERSION").into());
+                    version = v;
+                } else {
+                    previous_version = Some(v);
+                }
                 banner = "updated";
                 color = Some(term2::color::GREEN);
             }
             Ok(UpdateStatus::Unchanged) => {
+                if name == "rustup" {
+                    version = env!("CARGO_PKG_VERSION").into();
+                }
                 banner = "unchanged";
                 color = None;
             }

tests/cli-self-upd.rs

@@ -579,10 +579,7 @@ info: downloading self-update
         expect_ok_ex(
             config,
             &["rustup", "self", "update"],
-            &format!(
-                "  rustup updated - (toolchain not installed) (from {})\n\n",
-                version,
-            ),
+            &format!("  rustup updated - {} (from {})\n\n", version, version,),
             &expected_output,
         )
     });
@@ -706,9 +703,12 @@ fn update_no_change() {
         expect_ok_ex(
             config,
             &["rustup", "self", "update"],
-            r"  rustup unchanged - (toolchain not installed)
+            &format!(
+                r"  rustup unchanged - {}
 
 ",
+                version
+            ),
             r"info: checking for self-updates
 ",
         );