Split alacritty into a separate crates

The crate containing the entry point is called alacritty, and the crate
containing everything else is called alacritty_terminal.

3 files changed, 71 insertions, 12 deletions

diff --git a/winpty/Cargo.toml b/winpty/Cargo.toml
index 1d1529b2..a8611c3d 100644
--- a/winpty/Cargo.toml
+++ b/winpty/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.1.0"
 authors = ["Zac Pullar-Strecker <zacmps@gmail.com>"]
 license = "MIT"
 description = "Safe rust bindings for winpty"
+edition = "2018"
 
 [target.'cfg(windows)'.dependencies]
 winpty-sys = "0.4.3"
@@ -13,3 +14,9 @@ widestring = "0.4.0"
 [target.'cfg(windows)'.dev-dependencies]
 named_pipe = "0.3"
 winapi = { version = "0.3", features = ["winnt", "processthreadsapi"] }
+
+[target.'cfg(windows)'.build-dependencies]
+embed-resource = "1.1.4"
+tempfile = "3.0.4"
+reqwest = "0.9"
+zip = "0.5"
diff --git a/winpty/build.rs b/winpty/build.rs
index a0742a11..2f4c4565 100644
--- a/winpty/build.rs
+++ b/winpty/build.rs
@@ -1,14 +1,67 @@
-use std::fs::copy;
+#[cfg(windows)]
+use std::fs::OpenOptions;
+#[cfg(windows)]
+use std::io;
+
+#[cfg(windows)]
+use std::env;
+#[cfg(windows)]
+use std::fs::{copy, File};
+#[cfg(windows)]
 use std::path::Path;
 
+#[cfg(windows)]
+use embed_resource;
+#[cfg(windows)]
+use reqwest;
+#[cfg(windows)]
+use tempfile;
+#[cfg(windows)]
+use zip;
+
+#[cfg(windows)]
+const WINPTY_PACKAGE_URL: &str =
+    "https://github.com/rprichard/winpty/releases/download/0.4.3/winpty-0.4.3-msvc2015.zip";
+
 fn main() {
-    // The working directory for `cargo test` is in the deps folder, not the debug/release root
-    if cfg!(test) && Path::new("target").exists() {
-        #[cfg(debug_assertions)]
-        copy("../extra/windows/x86_64/winpty-agent.exe", "target/debug/deps/winpty-agent.exe")
-            .unwrap();
-        #[cfg(not(debug_assertions))]
-        copy("../extra/windows/x86_64/winpty-agent.exe", "target/release/deps/winpty-agent.exe")
-            .unwrap();
+    #[cfg(windows)]
+    {
+        embed_resource::compile("../extra/windows/windows.rc");
+
+        // Path is relative to target/{profile}/build/alacritty-HASH/out
+        let file = Path::new(&env::var("OUT_DIR").unwrap()).join("../../../winpty-agent.exe");
+        if !file.exists() {
+            aquire_winpty_agent(&file);
+        }
+
+        // The working directory for `cargo test` is in the deps folder, not the debug/release root
+        copy(&file, file.parent().unwrap().join("deps/winpty-agent.exe")).unwrap();
     }
 }
+
+#[cfg(windows)]
+fn aquire_winpty_agent(out_path: &Path) {
+    let tmp_dir = tempfile::Builder::new().prefix("alacritty_build").tempdir().unwrap();
+
+    let mut response = reqwest::get(WINPTY_PACKAGE_URL).unwrap();
+    let mut file = OpenOptions::new()
+        .read(true)
+        .write(true)
+        .create(true)
+        .open(tmp_dir.path().join("winpty_package.zip"))
+        .unwrap();
+
+    io::copy(&mut response, &mut file).unwrap();
+
+    let mut archive = zip::ZipArchive::new(file).unwrap();
+
+    let target = match env::var("TARGET").unwrap().split("-").next().unwrap() {
+        "x86_64" => "x64",
+        "i386" => "ia32",
+        _ => panic!("architecture has no winpty binary"),
+    };
+
+    let mut winpty_agent = archive.by_name(&format!("{}/bin/winpty-agent.exe", target)).unwrap();
+
+    io::copy(&mut winpty_agent, &mut File::create(out_path).unwrap()).unwrap();
+}
diff --git a/winpty/src/windows.rs b/winpty/src/windows.rs
index 064db2da..5746df2a 100644
--- a/winpty/src/windows.rs
+++ b/winpty/src/windows.rs
@@ -337,10 +337,9 @@ impl<'a> Drop for SpawnConfig<'a> {
 
 #[cfg(test)]
 mod tests {
-    extern crate named_pipe;
-    extern crate winapi;
+    use named_pipe::PipeClient;
+    use winapi;
 
-    use self::named_pipe::PipeClient;
     use self::winapi::um::processthreadsapi::OpenProcess;
     use self::winapi::um::winnt::READ_CONTROL;