Instead of ProgressStyle, use separate progress_template and progress…

…_chars strings

so we can still derive Debug, as ProgressStyle in indicatif 0.17 does not implement debug anymore with its progresstracker

src/lib.rs

@@ -607,7 +607,8 @@ pub struct Download {
     show_progress: bool,
     url: String,
     headers: reqwest::header::HeaderMap,
-    progress_style: ProgressStyle,
+    progress_template: String,
+    progress_chars: String,
 }
 impl Download {
     /// Specify download url
@@ -616,9 +617,8 @@ impl Download {
             show_progress: false,
             url: url.to_owned(),
             headers: reqwest::header::HeaderMap::new(),
-            progress_style: ProgressStyle::default_bar()
-                .template("[{elapsed_precise}] [{bar:40}] {bytes}/{total_bytes} ({eta}) {msg}")
-                .progress_chars("=>-"),
+            progress_template: "[{elapsed_precise}] [{bar:40}] {bytes}/{total_bytes} ({eta}) {msg}".to_string(),
+            progress_chars: "=>-".to_string(),
         }
     }
 
@@ -629,8 +629,9 @@ impl Download {
     }
 
     /// Set the progress style
-    pub fn set_progress_style(&mut self, progress_style: ProgressStyle) -> &mut Self {
-        self.progress_style = progress_style;
+    pub fn set_progress_style(&mut self, progress_template: String, progress_chars: String) -> &mut Self {
+        self.progress_template = progress_template;
+        self.progress_chars = progress_chars;
         self
     }
 
@@ -699,7 +700,11 @@ impl Download {
         let mut downloaded = 0;
         let mut bar = if show_progress {
             let pb = ProgressBar::new(size);
-            pb.set_style(self.progress_style.clone());
+            pb.set_style(
+                ProgressStyle::default_bar()
+                .template(&self.progress_template).unwrap()
+                .progress_chars(&self.progress_chars)
+                );
 
             Some(pb)
         } else {