Restoring hpvm_installer fixes made by Yifan

hpvm/scripts/hpvm_installer.py

@@ -5,10 +5,9 @@ from pathlib import Path
 from subprocess import CalledProcessError, check_call
 from typing import List
 
-
 VERSION = "9.0.0"
 URL = "http://releases.llvm.org"
-WGET = "wget"
+DOWNLOADER = "curl"
 CLANG_DIR = f"cfe-{VERSION}.src"
 CLANG_TARBALL = f"{CLANG_DIR}.tar.xz"
 LLVM_DIR = f"llvm-{VERSION}.src"
@@ -150,11 +149,10 @@ def prompt_args():
 Example: "DCMAKE_BUILD_TYPE=Release DCMAKE_INSTALL_PREFIX=install".
 Arguments: """
     )
-    
     args.cmake_args = input()
     if args.cmake_args.strip() != "":    
       args.cmake_args = [f"-{arg}" for arg in args.cmake_args.split(" ")]
-      
+
     args.no_params = not input_with_check(
         "Download DNN weights (recommended)? [y/n]: ", parse_yn, "Please enter y or n"
     )
@@ -184,7 +182,7 @@ def check_download_llvm_clang():
         else:
             print(f"Downloading {LLVM_TARBALL}...")
             print(f"=============================")
-            check_call([WGET, f"{URL}/{VERSION}/{LLVM_TARBALL}"])
+            download(f"{URL}/{VERSION}/{LLVM_TARBALL}", LLVM_TARBALL)
         check_call(["tar", "xf", LLVM_TARBALL])
         check_call(["mv", LLVM_DIR, "llvm"])
     tools = Path("llvm/tools")
@@ -199,7 +197,7 @@ def check_download_llvm_clang():
     chdir(tools)
     print(f"Downloading {CLANG_TARBALL}...")
     print(f"=============================")
-    check_call([WGET, f"{URL}/{VERSION}/{CLANG_TARBALL}"])
+    download(f"{URL}/{VERSION}/{CLANG_TARBALL}", CLANG_TARBALL)
     check_call(["tar", "xf", CLANG_TARBALL])
     check_call(["mv", CLANG_DIR, "clang"])
     assert Path("clang/").is_dir(), "Problem with clang download. Exiting!"
@@ -217,7 +215,7 @@ def check_download_model_params():
     else:
         print(f"Downloading DNN model parameters: {MODEL_PARAMS_TAR}...")
         print(f"=============================")
-        check_call([WGET, MODEL_PARAMS_LINK, "-O", MODEL_PARAMS_TAR])
+        download(MODEL_PARAMS_LINK, MODEL_PARAMS_TAR)
     print(
         f"Extracting DNN model parameters {MODEL_PARAMS_TAR} => {MODEL_PARAMS_DIR}..."
     )
@@ -313,6 +311,10 @@ def input_with_check(prompt: str, parse, prompt_when_invalid: str):
     return value
 
 
+def download(link: str, output: Path):
+    check_call(["curl", "-L", link, "-o", output])
+
+
 def main():
     from sys import argv