add Badge::to_svg_data_uri method

Author: Sam Reis

Cargo.lock

@@ -11,4 +11,5 @@ documentation = "https://docs.rs/badge"
 path = "badge.rs"
 
 [dependencies]
+base64 = "0.9.0"
 rusttype = "0.4.0"

src/web/badge/Cargo.toml

@@ -1,8 +1,10 @@
 //! Simple badge generator
 
+extern crate base64;
 extern crate rusttype;
 
 
+use base64::display::Base64Display;
 use rusttype::{Font, FontCollection, Scale, point, Point, PositionedGlyph};
 
 
@@ -60,6 +62,12 @@ impl Badge {
     }
 
 
+    pub fn to_svg_data_uri(&self) -> String {
+        format!("data:image/svg+xml;base64,{}",
+            Base64Display::standard(self.to_svg().as_bytes()))
+    }
+
+
     pub fn to_svg(&self) -> String {
         let left_width = self.calculate_width(&self.options.subject) + 6;
         let right_width = self.calculate_width(&self.options.status) + 6;