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Fix backup=True for filter_file

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This commit is contained in:
Adam J. Stewart 2016-08-01 15:35:02 -05:00
parent e470478dc1
commit 5b79f0d04a
1 changed files with 9 additions and 7 deletions
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16
lib/spack/llnl/util/filesystem.py
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@ -29,8 +29,9 @@
import stat import stat
import errno import errno
import getpass import getpass
from contextlib import contextmanager, closing from contextlib import contextmanager
import subprocess import subprocess
import fileinput
import llnl.util.tty as tty import llnl.util.tty as tty
@ -85,13 +86,14 @@ def groupid_to_group(x):
if ignore_absent and not os.path.exists(filename): if ignore_absent and not os.path.exists(filename):
continue continue
shutil.copy(filename, backup_filename) # Create backup file. Don't overwrite an existing backup
# file in case this file is being filtered multiple times.
if not os.path.exists(backup_filename):
shutil.copy(filename, backup_filename)
try: try:
with closing(open(backup_filename)) as infile: for line in fileinput.input(filename, inplace=True):
with closing(open(filename, 'w')) as outfile: print(re.sub(regex, repl, line.rstrip()))
for line in infile:
foo = re.sub(regex, repl, line)
outfile.write(foo)
except: except:
# clean up the original file on failure. # clean up the original file on failure.
shutil.move(backup_filename, filename) shutil.move(backup_filename, filename)