mirror/notebook
2
0
Fork 0
mirror of https://github.com/jupyter/notebook.git synced 2025-01-24 12:05:22 +08:00
Code Issues Packages Projects Releases Wiki Activity

fallback on copy, copyfile if copy2 fails

Browse Source 
in notebook manager
This commit is contained in:
MinRK 2014-03-14 10:05:30 -07:00
parent 05838b7c2e
commit caee63f413
1 changed files with 21 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
IPython/html/services/notebooks/filenbmanager.py
View File

@ -85,7 +85,25 @@ class FileNotebookManager(NotebookManager):
os.mkdir(new)
except:
raise TraitError("Couldn't create checkpoint dir %r" % new)
def _copy(self, src, dest):
"""copy src to dest
try copy2, fallback to copy, then finally copyfile
"""
exc = None
for name in ('copy2', 'copy', 'copyfile'):
cp = getattr(shutil, name)
try:
cp(src, dest)
except OSError as e:
exc = e # assignment required for Python 3
self.log.debug("%s(%r,%r) failed: %s", name, src, dest, e)
else:
return
# will only get here if all copies fail:
raise exc
def get_notebook_names(self, path=''):
"""List all notebook names in the notebook dir and path."""
path = path.strip('/')
@ -432,7 +450,7 @@ class FileNotebookManager(NotebookManager):
self.log.debug("creating checkpoint for notebook %s", name)
if not os.path.exists(self.checkpoint_dir):
os.mkdir(self.checkpoint_dir)
shutil.copy2(nb_path, cp_path)
self._copy(nb_path, cp_path)
# return the checkpoint info
return self.get_checkpoint_model(checkpoint_id, name, path)
@ -465,7 +483,7 @@ class FileNotebookManager(NotebookManager):
# ensure notebook is readable (never restore from an unreadable notebook)
with io.open(cp_path, 'r', encoding='utf-8') as f:
current.read(f, u'json')
shutil.copy2(cp_path, nb_path)
self._copy(cp_path, nb_path)
self.log.debug("copying %s -> %s", cp_path, nb_path)
def delete_checkpoint(self, checkpoint_id, name, path=''):