def save_patch(args, options, parser):
if len(args) != 1:
raise Exception('A name for the patch must be provided')
description = args[0]
stash = Stash()
svn = SvnController()
modified_files = svn.status()
if not modified_files:
raise Exception('No changes to stash')
summary = '\n'.join(' -> '.join(x) for x in modified_files)
patch = svn.diff()
try:
stash.add_patch(patch, summary, description)
except Exception:
stash.rollback()
raise
else:
stash.commit()
finally:
stash.close()
return 0
