Add support for Windows (#1374)

Initial support for Windows is implemented using the winpty translation
layer. Clipboard support for Windows is provided through the `clipboard`
crate, and font rasterization is provided by RustType.

The tty.rs file has been split into OS-specific files to separate
standard pty handling from the winpty implementation.

Several binary components are fetched via build script on windows
including libclang and winpty. These could be integrated more directly
in the future either by building those dependencies as part of the
Alacritty build process or by leveraging git lfs to store the artifacts.

Fixes #28.

1 files changed, 25 insertions, 21 deletions

diff --git a/src/display.rs b/src/display.rs
index d806b33a..d5a2ea0a 100644
--- a/src/display.rs
+++ b/src/display.rs
@@ -16,7 +16,7 @@
 //! GPU drawing.
 use std::sync::mpsc;
 
-use parking_lot::{MutexGuard};
+use parking_lot::MutexGuard;
 
 use Rgb;
 use cli;
@@ -27,7 +27,7 @@ use renderer::{self, GlyphCache, QuadRenderer};
 use term::{Term, SizeInfo, RenderableCell};
 use sync::FairMutex;
 
-use window::{self, Size, Pixels, Window, SetInnerSize};
+use window::{self, Pixels, SetInnerSize, Size, Window};
 
 #[derive(Debug)]
 pub enum Error {
@@ -128,10 +128,7 @@ impl Display {
         &self.size_info
     }
 
-    pub fn new(
-        config: &Config,
-        options: &cli::Options,
-    ) -> Result<Display, Error> {
+    pub fn new(config: &Config, options: &cli::Options) -> Result<Display, Error> {
         // Extract some properties from config
         let render_timer = config.render_timer();
 
@@ -196,9 +193,14 @@ impl Display {
 
         // Clear screen
         let background_color = config.colors().primary.background;
-        renderer.with_api(config, &size_info, 0. /* visual bell intensity */, |api| {
-            api.clear(background_color);
-        });
+        renderer.with_api(
+            config,
+            &size_info,
+            0., /* visual bell intensity */
+            |api| {
+                api.clear(background_color);
+            },
+        );
 
         Ok(Display {
             window,
@@ -224,9 +226,8 @@ impl Display {
             info!("Initializing glyph cache");
             let init_start = ::std::time::Instant::now();
 
-            let cache = renderer.with_loader(|mut api| {
-                GlyphCache::new(rasterizer, &font, &mut api)
-            })?;
+            let cache =
+                renderer.with_loader(|mut api| GlyphCache::new(rasterizer, &font, &mut api))?;
 
             let stop = init_start.elapsed();
             let stop_f = stop.as_secs() as f64 + f64::from(stop.subsec_nanos()) / 1_000_000_000f64;
@@ -276,7 +277,7 @@ impl Display {
         &mut self,
         terminal: &mut MutexGuard<Term>,
         config: &Config,
-        items: &mut [&mut OnResize]
+        items: &mut [&mut OnResize],
     ) {
         // Resize events new_size and are handled outside the poll_events
         // iterator. This has the effect of coalescing multiple resize
@@ -295,8 +296,7 @@ impl Display {
 
             if new_size == None {
                 // Force a resize to refresh things
-                new_size = Some((self.size_info.width as u32,
-                                 self.size_info.height as u32));
+                new_size = Some((self.size_info.width as u32, self.size_info.height as u32));
             }
         }
 
@@ -316,7 +316,6 @@ impl Display {
             self.window.resize(w, h);
             self.renderer.resize(w as i32, h as i32);
         }
-
     }
 
     /// Draw the screen
@@ -385,10 +384,15 @@ impl Display {
             // Draw render timer
             if self.render_timer {
                 let timing = format!("{:.3} usec", self.meter.average());
-                let color = Rgb { r: 0xd5, g: 0x4e, b: 0x53 };
-                self.renderer.with_api(config, &size_info, visual_bell_intensity, |mut api| {
-                    api.render_string(&timing[..], glyph_cache, color);
-                });
+                let color = Rgb {
+                    r: 0xd5,
+                    g: 0x4e,
+                    b: 0x53,
+                };
+                self.renderer
+                    .with_api(config, &size_info, visual_bell_intensity, |mut api| {
+                        api.render_string(&timing[..], glyph_cache, color);
+                    });
             }
         }
 
@@ -403,7 +407,7 @@ impl Display {
 
     /// Adjust the IME editor position according to the new location of the cursor
     pub fn update_ime_position(&mut self, terminal: &Term) {
-        use index::{Point, Line, Column};
+        use index::{Column, Line, Point};
         use term::SizeInfo;
         let Point{line: Line(row), col: Column(col)} = terminal.cursor().point;
         let SizeInfo{cell_width: cw,