CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutSign UpSign In
sagemathinc

Real-time collaboration for Jupyter Notebooks, Linux Terminals, LaTeX, VS Code, R IDE, and more,
all in one place.

GitHub Repository: sagemathinc/cocalc
 Path: blob/master/src/scripts/ensure_file_exists.py
Views: 687
1
#!/usr/bin/python

2
###############################################################################

3
#

4
#    CoCalc: Collaborative Calculation

5
#

6
#    Copyright (C) 2016, Sagemath Inc.

7
#

8
#    This program is free software: you can redistribute it and/or modify

9
#    it under the terms of the GNU General Public License as published by

10
#    the Free Software Foundation, either version 3 of the License, or

11
#    (at your option) any later version.

12
#

13
#    This program is distributed in the hope that it will be useful,

14
#    but WITHOUT ANY WARRANTY; without even the implied warranty of

15
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

16
#    GNU General Public License for more details.

17
#

18
#    You should have received a copy of the GNU General Public License

19
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.

20
#

21
###############################################################################

22


23
import os, shutil, sys

24


25
if len(sys.argv) != 3:

26
    sys.stderr.write(

27
        "%s src target\n\n   if target doesn't exist, copy src to it and chown target to have permissions of contain dir\n\n"

28
        % sys.argv[0])

29
    sys.exit(1)

30


31
_, src, target = sys.argv

32


33
if not os.path.exists(target):

34
    shutil.copyfile(src, target)

35
    s = os.stat(os.path.split(target)[0])

36
    os.chown(target, s.st_uid, s.st_gid)

37


38