When there is content in the version directory, use it directly

src/install.zig

@@ -30,6 +30,16 @@ pub fn install_zig(version: []const u8) !void {
 
     const arena_allocator = arena.allocator();
 
+    // get version path
+    const version_path = try tools.get_zvm_path_segment(arena_allocator, "version");
+    // get extract path
+    const extract_path = try std.fs.path.join(arena_allocator, &.{ version_path, version });
+
+    if (tools.does_path_exist(extract_path)) {
+        try alias.set_zig_version(version);
+        return;
+    }
+
     // get version data
     const version_data: meta.Zig.VersionData = blk: {
         const res = try tools.http_get(arena_allocator, config.zig_url);
@@ -38,8 +48,6 @@ pub fn install_zig(version: []const u8) !void {
         break :blk tmp_val orelse return error.UnsupportedVersion;
     };
 
-    std.debug.print("Install {s}\n", .{version_data.version});
-
     const reverse_platform_str = try architecture.platform_str(architecture.DetectParams{
         .os = builtin.os.tag,
         .arch = builtin.cpu.arch,
@@ -56,10 +64,6 @@ pub fn install_zig(version: []const u8) !void {
     const new_file = try download.download(parsed_uri, file_name, version_data.shasum, version_data.size);
     defer new_file.close();
 
-    // get version path
-    const version_path = try tools.get_zvm_path_segment(arena_allocator, "version");
-    // get extract path
-    const extract_path = try std.fs.path.join(arena_allocator, &.{ version_path, version });
     try tools.try_create_path(extract_path);
     const extract_dir = try std.fs.openDirAbsolute(extract_path, .{});
 

src/tools.zig

@@ -154,16 +154,16 @@ pub fn get_zig_version(allocator: std.mem.Allocator) ![]u8 {
 }
 
 // check dir exist
-pub fn does_path_exist(version_path: []const u8) bool {
-    std.fs.accessAbsolute(version_path, .{}) catch |err| {
+pub fn does_path_exist(path: []const u8) bool {
+    std.fs.accessAbsolute(path, .{}) catch |err| {
         if (err == error.FileNotFound) return false;
     };
     return true;
 }
 
 // check dir exist
-pub fn does_path_exist2(dir: std.fs.Dir, file_name: []const u8) bool {
-    dir.access(file_name, .{}) catch |err| {
+pub fn does_path_exist2(dir: std.fs.Dir, path: []const u8) bool {
+    dir.access(path, .{}) catch |err| {
         if (err == error.FileNotFound) return false;
     };
     return true;