src: consolidate compute_md5 functions

Add compute_md5 function in src/utils/fs.py

Remove identical md5 functions from src/live/ogOperations.py and
src/utils/tiptorrent.py

Move error checks from ogOperations.py into compute_md5 function in
src/utils/fs.py

1 files changed, 1 insertions, 17 deletions

diff --git a/src/live/ogOperations.py b/src/live/ogOperations.py
index 83242d2..f1478c3 100644
--- a/src/live/ogOperations.py
+++ b/src/live/ogOperations.py
@@ -200,22 +200,6 @@ class OgLiveOperations:
 
         return data
 
-    def _compute_md5(self, path, bs=2**20):
-        m = hashlib.md5()
-        with open(path, 'rb') as f:
-            while True:
-                buf = f.read(bs)
-                if not buf:
-                    break
-                m.update(buf)
-        return m.hexdigest()
-
-    def _md5_file(self, path):
-        if not os.path.exists(path):
-            raise OgError(f'Failed to calculate checksum, image file {path} does not exist')
-
-        return self._compute_md5(path)
-
     def _write_md5_file(self, path, checksum):
         if not os.path.exists(path):
             raise OgError(f'Failed to calculate checksum, image file {path} does not exist')
@@ -725,7 +709,7 @@ class OgLiveOperations:
         logging.info(f'Writing checksum file {name}.img.full.sum...')
         logging.info('*DO NOT REBOOT OR POWEROFF* the client during this time')
 
-        checksum = self._md5_file(f'/opt/opengnsys/images/{name}.img')
+        checksum = compute_md5(f'/opt/opengnsys/images/{name}.img')
         if checksum == -1:
             raise OgError(f'Cannot access {name}.full.sum file')