From b6e5d7348a6205bdfec582baf150f2471b865e54 Mon Sep 17 00:00:00 2001
From: O01eg <o01eg@yandex.ru>
Date: Wed, 20 Mar 2019 12:50:18 +0300
Subject: [PATCH] Add messages for different verbosity levels.

Output copy actions
---
 src/bootstrap/lib.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/bootstrap/lib.rs b/src/bootstrap/lib.rs
index 976b30a55c94b..0c3daea7a3cd6 100644
--- a/src/bootstrap/lib.rs
+++ b/src/bootstrap/lib.rs
@@ -726,6 +726,17 @@ impl Build {
         }
     }
 
+    pub fn is_verbose_than(&self, level: usize) -> bool {
+        self.verbosity > level
+    }
+
+    /// Prints a message if this build is configured in more verbose mode than `level`.
+    fn verbose_than(&self, level: usize, msg: &str) {
+        if self.is_verbose_than(level) {
+            println!("{}", msg);
+        }
+    }
+
     fn info(&self, msg: &str) {
         if self.config.dry_run { return; }
         println!("{}", msg);
@@ -1158,6 +1169,7 @@ impl Build {
     /// Copies a file from `src` to `dst`
     pub fn copy(&self, src: &Path, dst: &Path) {
         if self.config.dry_run { return; }
+        self.verbose_than(1, &format!("Copy {:?} to {:?}", src, dst));
         let _ = fs::remove_file(&dst);
         let metadata = t!(src.symlink_metadata());
         if metadata.file_type().is_symlink() {