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rosclean: support BusyBox du (#185) 

* rosclean: support busybox du

* Fix coding styles

* Fix exception handling for symlink check
This commit is contained in:
Atsushi Watanabe 2018-08-16 01:05:26 +09:00 committed by Dirk Thomas
parent 8a855e74ff
commit f21e88cc9a
1 changed files with 23 additions and 10 deletions
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33
tools/rosclean/src/rosclean/__init__.py
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@ -34,6 +34,7 @@ from __future__ import print_function
__version__ = '1.7.0' __version__ = '1.7.0'
from distutils.spawn import find_executable
import argparse import argparse
import os import os
import sys import sys
@ -134,17 +135,29 @@ def get_disk_usage(d):
:raises: :exc:`CleanupException` If get_disk_usage() cannot be used on this platform :raises: :exc:`CleanupException` If get_disk_usage() cannot be used on this platform
""" """
# only implemented on Linux and FreeBSD for now. Should work on OS X but need to verify first (du is not identical) # only implemented on Linux and FreeBSD for now. Should work on OS X but need to verify first (du is not identical)
if platform.system() == 'Linux': cmd = None
unit = 1
du = find_executable('du')
if du is not None:
if platform.system() == 'Linux':
cmd = [du, '-sb', d]
elif platform.system() == 'FreeBSD':
cmd = [du, '-skA', d]
unit = 1024
try: try:
return int(subprocess.Popen(['du', '-sb', d], stdout=subprocess.PIPE).communicate()[0].split()[0]) # detect BusyBox du command by following symlink
except: if os.path.basename(os.readlink(du)) == 'busybox':
raise CleanupException("rosclean is not supported on this platform") cmd = [du, '-sk', d]
elif platform.system() == 'FreeBSD': unit = 1024
try: except OSError:
return int(subprocess.Popen(['du', '-sA', d], stdout=subprocess.PIPE).communicate()[0].split()[0]) * 1024 # readlink raises OSError if the target is not symlink
except: pass
raise CleanupException("rosclean is not supported on this platform")
else: if cmd is None:
raise CleanupException("rosclean is not supported on this platform")
try:
return int(subprocess.Popen(cmd, stdout=subprocess.PIPE).communicate()[0].split()[0]) * unit
except:
raise CleanupException("rosclean is not supported on this platform") raise CleanupException("rosclean is not supported on this platform")
def _sort_file_by_oldest(d): def _sort_file_by_oldest(d):