still working on ipxe

_base.py

@@ -4,6 +4,7 @@ import os
 import pathlib
 import shutil
 import subprocess
+import tempfile
 ##
 import psutil
 import requests
@@ -95,15 +96,20 @@ class BaseUpdater(object):
         req_chk = requests.head(self.iso_url, headers = {'User-Agent': 'curl/7.74.0'})
         if not req_chk.ok:
             raise RuntimeError('Received non-200/30x {0} for {1}'.format(req_chk.status_code, self.iso_url))
-        os.makedirs(os.path.dirname(self.dest_iso), exist_ok = True)
+        _tmpfile = tempfile.mkstemp()[1]
         with requests.get(self.iso_url, stream = True, headers = {'User-Agent': 'curl/7.74.0'}) as req:
             req.raise_for_status()
-            with open(self.dest_iso, 'wb') as fh:
+            with open(_tmpfile, 'wb') as fh:
                 for chunk in req.iter_content(chunk_size = 8192):
                     fh.write(chunk)
         realhash = self.getISOHash()
         if realhash != self.new_hash:
+            os.remove(_tmpfile)
             raise RuntimeError('Hash mismatch: {0} (LOCAL), {1} (REMOTE)'.format(realhash, self.new_hash))
+        os.makedirs(os.path.dirname(self.dest_iso), exist_ok = True)
+        pathlib.Path(self.dest_iso).touch(mode = 0o0644, exist_ok = True)
+        shutil.copyfile(_tmpfile, self.dest_iso)
+        os.remove(_tmpfile)
         self.updateVer()
         return(None)