Downloading the binaries through a proxy if either HTTPS_PROXY or HTT…

…P_PROXY environment variable is set.

closes rust-bitcoin#48

.github/workflows/test.yml

@@ -72,7 +72,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        toolchain: [ "1.41.1", "stable", "nightly" ]
+        toolchain: [ "1.42", "stable", "nightly" ]
 
     steps:
       - uses: actions/checkout@v2

Cargo.toml

@@ -19,13 +19,11 @@ env_logger = "0.8"
 
 [build-dependencies]
 bitcoin_hashes = "0.11"
+ureq = "2.1"
+flate2 = "1.0"
 tar = "0.4"
 zip = "0.5"
-
-# allows to keep MSRV 1.41.1
-ureq = "1.0"  
 filetime = "=0.2.15"
-flate2 = "=1.0.22"
 
 [features]
 "23_0" = []

build.rs

@@ -103,10 +103,19 @@ fn main() {
         );
         println!("url:{}", url);
         let mut downloaded_bytes = Vec::new();
-        let resp = ureq::get(&url).call();
-        assert_eq!(resp.status(), 200, "url {} didn't return 200", url);
 
-        let _size = resp
+        let http_proxy = std::env::var("HTTPS_PROXY").or_else(|_| std::env::var("HTTP_PROXY"));
+        let agent = if let Ok(proxy) = http_proxy {
+            let proxy = ureq::Proxy::new(proxy).unwrap();
+            ureq::AgentBuilder::new().proxy(proxy).build()
+        } else {
+            ureq::AgentBuilder::new().build()
+        };
+
+        let _size = agent
+            .get(&url)
+            .call()
+            .unwrap()
             .into_reader()
             .read_to_end(&mut downloaded_bytes)
             .unwrap();