Support for legacy Windows systems has been returned (see description or comment of this commit)

To support legacy builds of Windows 10 (1803 and earlier), Windows 8.1, Windows 8, Windows 7, the ability to use curl ("curl.exe") has been added if it is located in the GRU folder. If curl is installed in any other way, you can use it by creating a file "curl.txt" in the GRU folder and writing the full path to the installed "curl.exe" in it. These methods are introduced as test methods (although they may not be).

Author: Zalexanninev15

README.md

@@ -24,7 +24,7 @@ Updater for applications from GitHub
 
 **OS:**
 
-* Version 2.0 and possible new versions: Windows 10 build 1809+ (x64)/11
+* Version 2.0 and possible new versions: Windows 10 build 1809+ (x64)/11. However, there is a way to add support for Windows 10 (1803 and earlier builds), Windows 8.1, Windows 8, Windows 7
 * Version 1.5.0.1 (1.5-1) and 1.5: Windows 10 (x64)/11, had support Windows 7/8/8.1 (x64), but the correct display of characters in the console is not guaranteed
 * [Version 1.4-1 (1.4.0.1)](https://github.com/Zalexanninev15/GRU/releases/tag/1.4.0.1) and earlier versions: Windows 10 (maybe Windows 11), latest version for Windows 7/8/8.1 (x32 and x64)
 

src/downloader.rs

@@ -1,7 +1,9 @@
-use std::process::{Command, Stdio};
+use std::fs::File;
+use std::io::Read;
+use std::path::Path;
+use std::process::{ Command, Stdio };
 use std::process;
 
-
 // Download the asset
 
 // #[tokio::main]
@@ -16,22 +18,32 @@ pub fn download(repo: &str, ver_tag: &str, file: &str, simple_mode: &bool) {
 
     let mut command = Command::new("C:\\Windows\\System32\\curl.exe");
 
+    if Path::new(&String::from(format!("{}\\curl.txt", current_dir))).exists() {
+        let mut file = File::open(String::from(format!("{}\\curl.txt", current_dir))).unwrap();
+        let mut contents = String::new();
+        file.read_to_string(&mut contents).unwrap();
+        command = Command::new(contents);
+    }
+
+    if Path::new(&String::from(format!("{}\\curl.exe", current_dir))).exists() {
+        command = Command::new(String::from(format!("{}\\curl.exe", current_dir)));
+    }
+
     if *simple_mode {
         command
-        .arg("-Lo")
-        .arg(file_name)
-        .arg(asset)
-        .arg("--progress-bar")
-        .stdout(Stdio::inherit())
-        .stderr(Stdio::inherit());
-    }
-    else {
+            .arg("-Lo")
+            .arg(file_name)
+            .arg(asset)
+            .arg("--progress-bar")
+            .stdout(Stdio::inherit())
+            .stderr(Stdio::inherit());
+    } else {
         command
-        .arg("-Lo")
-        .arg(file_name)
-        .arg(asset)
-        .stdout(Stdio::inherit())
-        .stderr(Stdio::inherit());
+            .arg("-Lo")
+            .arg(file_name)
+            .arg(asset)
+            .stdout(Stdio::inherit())
+            .stderr(Stdio::inherit());
     }
 
     let mut child = command.spawn().expect("Failed to start curl process");