Use github api

Laboratory/Rust/functionality-testing/build.rs

@@ -10,5 +10,8 @@ fn main() {
     unsafe {
         bebop::COMPILER_PATH = Some(PathBuf::from(BEBOP_BIN));
     }
+    // bebop::download_bebopc(
+    //     PathBuf::from("../target").join("bebopc"),
+    // );
     bebop::build_schema_dir("schemas", "src/generated");
 }

Tools/cargo/Cargo.toml

@@ -2,7 +2,7 @@
 
 [package]
 name = "bebop-tools"
-version = "2.3.0-alpha"
+version = "0.1.0"
 edition = "2018"
 description = "Cargo buildscript tools for Bebop, a schema-based binary serialization format."
 readme = "../../README.md"
@@ -17,7 +17,8 @@ homepage = "https://github.com/RainwayApp/bebop/wiki"
 [dependencies]
 reqwest = { version = "0.11", features = ["blocking"], optional = true }
 zip = { version = "0.5", optional = true }
+json = { version = "0.12", optional = true }
 
 [features]
 default = ["downloader"]
-downloader = ["reqwest", "zip"]
+downloader = ["reqwest", "zip", "json"]

Tools/cargo/src/downloader.rs

@@ -1,3 +1,4 @@
+use json::JsonValue;
 use std::fs::{self, File};
 use std::path::{Path, PathBuf};
 
@@ -42,10 +43,18 @@ fn download_bebopc_internal(dest: impl AsRef<Path>) -> PathBuf {
     }
     mkdir_p(&root_path);
     let zip_name = format!("bebopc-{}64.zip", OS_NAME);
-    let url = format!(
-        "https://github.com/RainwayApp/bebop/releases/download/v{}/{}",
-        BEBOPC_VERSION, zip_name
-    );
+    let release_info = get_json(format!(
+        "https://api.github.com/repos/rainwayapp/bebop/releases/tags/v{}",
+        BEBOPC_VERSION
+    ));
+    let url = release_info["assets"]
+        .members()
+        .find(|asset| asset["name"].as_str().unwrap() == zip_name)
+        .expect("Could not find expected asset")["browser_download_url"]
+        .as_str()
+        .unwrap()
+        .to_owned();
+
     let zip_path = root_path.join(&zip_name);
     download(url, &zip_path);
     let tmp_path = &root_path.join("tmp");
@@ -95,3 +104,22 @@ fn download(uri: impl reqwest::IntoUrl, path: impl AsRef<Path>) {
     let mut file = File::create(path).expect("Failed to create file");
     res.copy_to(&mut file).expect("Failed to write to file");
 }
+
+fn get_json(uri: impl reqwest::IntoUrl) -> JsonValue {
+    let uri = uri.into_url().unwrap();
+    let res = reqwest::blocking::Client::builder()
+        .build()
+        .unwrap()
+        .get(uri.clone())
+        .header("User-Agent", "hyper/0.5")
+        .send()
+        .expect("Failed to GET");
+    if res.status() != 200 {
+        panic!(
+            "Invalid status code from GET {}: {}",
+            uri.as_str(),
+            res.status()
+        )
+    }
+    json::parse(&res.text().unwrap()).expect("Failed to parse JSON response")
+}