1 files changed, 4 insertions, 1 deletions

diff --git a/snap.py b/snap.py
index 1151c718..68a62c7c 100755
--- a/snap.py
+++ b/snap.py
@@ -15,7 +15,7 @@ import pathlib
 import unshare
 
 
-def borg_lv(lv, size_percent, target, archive_prefix, **args):
+def borg_lv(lv, size_percent, target, archive_prefix, dry_run, **args):
     vgp = lv.split('/')
     lvn = vgp[-1]
     snn = f'{lvn}_snap_{datetime.utcnow().strftime("%Y%m%dT%H%MZ")}'
@@ -75,6 +75,8 @@ def borg_lv(lv, size_percent, target, archive_prefix, **args):
                                '--keep-exclude-tags'
                                ]
                 env['BORG_FILES_CACHE_SUFFIX'] = "_".join(vgp)
+                if dry_run:
+                    create_args += ['--dry-run']
                 create_args += [archive]
                 subprocess.run(create_args, cwd=dir, check=True, env=env)
 
@@ -95,6 +97,7 @@ def main():
     parser.add_argument('--size-percent', metavar='PERCENT', type = float, default=10)
     parser.add_argument('--target', metavar='REPO', default='borg.vidhar:.')
     parser.add_argument('--archive-prefix', metavar='REPO', default='yggdrasil.niflheim.ymir.')
+    parser.add_argument('--dry-run', action='store_true')
     args = parser.parse_args()
 
     return borg_lv(**vars(args))