diff options
Diffstat (limited to 'source-builder/sb/path.py')
| -rw-r--r-- | source-builder/sb/path.py | 84 |
1 files changed, 72 insertions, 12 deletions
diff --git a/source-builder/sb/path.py b/source-builder/sb/path.py index b86df0d..b27cf14 100644 --- a/source-builder/sb/path.py +++ b/source-builder/sb/path.py @@ -1,6 +1,6 @@ # # RTEMS Tools Project (http://www.rtems.org/) -# Copyright 2010-2016 Chris Johns (chrisj@rtems.org) +# Copyright 2010-2018 Chris Johns (chrisj@rtems.org) # All rights reserved. # # This file is part of the RTEMS Tools package in 'rtems-tools'. @@ -25,15 +25,18 @@ from __future__ import print_function -import log import os import shutil import stat import string +import sys -import error +from . import error +from . import log +windows_posix = sys.platform == 'msys' windows = os.name == 'nt' + win_maxpath = 254 def host(path): @@ -53,19 +56,16 @@ def host(path): path = u'\\'.join([u'\\\\?', path]) return path -def is_abspath(path): - if path is not None: - return '/' == path[0] - return False - def shell(path): + if isinstance(path, bytes): + path = path.decode('ascii') if path is not None: - if windows: - path = path.encode('ascii', 'ignore') + if windows or windows_posix: + path = path.encode('ascii', 'ignore').decode('ascii') if path.startswith('\\\\?\\'): path = path[4:] if len(path) > 1 and path[1] == ':': - path = '/%s%s' % (path[0], path[2:]) + path = '/%s%s' % (path[0].lower(), path[2:]) path = path.replace('\\', '/') while '//' in path: path = path.replace('//', '/') @@ -79,6 +79,11 @@ def dirname(path): path = shell(path) return shell(os.path.dirname(path)) +def is_abspath(path): + if path is not None and len(path) > 0: + return '/' == path[0] + return False + def join(path, *args): path = shell(path) for arg in args: @@ -218,7 +223,6 @@ def removeall(path): _remove_node(path) def expand(name, paths): - path = shell(path) l = [] for p in paths: l += [join(shell(p), name)] @@ -305,6 +309,58 @@ def copy_tree(src, dst): else: raise error.general('copying tree (4): %s -> %s: %s' % (hsrc, hdst, str(why))) +def get_size(path, depth = -1): + # + # Get the size the directory tree manually to the required depth. + # This makes sure on Windows the files are correctly encoded to avoid + # the file name size limit. On Windows the os.walk fails once we + # get to the max path length on Windows. + # + def _isdir(path): + hpath = host(path) + return os.path.isdir(hpath) and not os.path.islink(hpath) + + def _node_size(path): + hpath = host(path) + size = 0 + if not os.path.islink(hpath): + size = os.path.getsize(hpath) + return size + + def _get_size(path, depth, level = 0): + level += 1 + dirs = [] + size = 0 + for name in listdir(path): + path_ = join(path, shell(name)) + hname = host(path_) + if _isdir(path_): + dirs += [shell(name)] + else: + size += _node_size(path_) + if depth < 0 or level < depth: + for name in dirs: + dir = join(path, name) + size += _get_size(dir, depth, level) + return size + + path = shell(path) + hpath = host(path) + size = 0 + + if os.path.exists(hpath): + size = _get_size(path, depth) + + return size + +def get_humanize_size(path, depth = -1): + size = get_size(path, depth) + for unit in ['','K','M','G','T','P','E','Z']: + if abs(size) < 1024.0: + return "%5.3f%sB" % (size, unit) + size /= 1024.0 + return "%.3f%sB" % (size, 'Y') + if __name__ == '__main__': print(host('/a/b/c/d-e-f')) print(host('//a/b//c/d-e-f')) @@ -312,6 +368,10 @@ if __name__ == '__main__': print(basename('/as/sd/df/fg/me.txt')) print(dirname('/as/sd/df/fg/me.txt')) print(join('/d', 'g', '/tyty/fgfg')) + print('size of . depth all: ', get_size('.')) + print('size of . depth 1: ', get_size('.', 1)) + print('size of . depth 2: ', get_size('.', 2)) + print('size of . as human : ', get_humanize_size('.')) windows = True print(host('/a/b/c/d-e-f')) print(host('//a/b//c/d-e-f')) |