From ff44047d1bcbf3f4e4d2a0ac6cd3ac7c0d841068 Mon Sep 17 00:00:00 2001
From: Aaron LI <aly@aaronly.me>
Date: Mon, 16 Jul 2018 15:17:14 +0800
Subject: astro/tile_slice.py: Check file existence first
---
astro/21cm/tile_slice.py | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
(limited to 'astro')
diff --git a/astro/21cm/tile_slice.py b/astro/21cm/tile_slice.py
index 091d599..4222461 100755
--- a/astro/21cm/tile_slice.py
+++ b/astro/21cm/tile_slice.py
@@ -1,6 +1,6 @@
#!/usr/bin/env python3
#
-# Copyright (c) 2017 Weitian LI <weitian@aaronly.me>
+# Copyright (c) 2017-2018 Weitian LI <wt@liwt.net>
# MIT License
#
@@ -9,6 +9,7 @@ Tile the given slices to the required FoV size, scale down to the
wanted size (for faster simulation later).
"""
+import os
import sys
import argparse
@@ -55,6 +56,13 @@ def main():
help="central frequency [MHz] of the selected cube")
args = parser.parse_args()
+ if os.path.exists(args.outfile):
+ if args.clobber:
+ os.remove(args.outfile)
+ else:
+ raise FileExistsError('output file already exists: %s' %
+ args.outfile)
+
if args.zc:
zc = args.zc
fc = z2freq(zc, print_=False)
--
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