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#!/usr/bin/env python
from fs.errors import FSError
from fs.opener import opener
from fs.path import pathsplit, abspath, isdotfile, iswildcard
from fs.commands.runner import Command
from collections import defaultdict
import sys
class FSls(Command):
usage = """fsls [OPTIONS]... [PATH]
List contents of [PATH]"""
def get_optparse(self):
optparse = super(FSls, self).get_optparse()
optparse.add_option('-u', '--full', dest='fullpath', action="store_true", default=False,
help="output full path", metavar="FULL")
optparse.add_option('-s', '--syspath', dest='syspath', action="store_true", default=False,
help="output system path (if one exists)", metavar="SYSPATH")
optparse.add_option('-r', '--url', dest='url', action="store_true", default=False,
help="output URL in place of path (if one exists)", metavar="URL")
optparse.add_option('-d', '--dirsonly', dest='dirsonly', action="store_true", default=False,
help="list directories only", metavar="DIRSONLY")
optparse.add_option('-f', '--filesonly', dest='filesonly', action="store_true", default=False,
help="list files only", metavar="FILESONLY")
optparse.add_option('-l', '--long', dest='long', action="store_true", default=False,
help="use a long listing format", metavar="LONG")
optparse.add_option('-a', '--all', dest='all', action='store_true', default=False,
help="do not hide dot files")
return optparse
def do_run(self, options, args):
output = self.output
if not args:
args = [u'.']
dir_paths = []
file_paths = []
fs_used = set()
for fs_url in args:
fs, path = self.open_fs(fs_url)
fs_used.add(fs)
path = path or '.'
wildcard = None
if iswildcard(path):
path, wildcard = pathsplit(path)
if path != '.' and fs.isfile(path):
if not options.dirsonly:
file_paths.append(path)
else:
if not options.filesonly:
dir_paths += fs.listdir(path,
wildcard=wildcard,
full=options.fullpath or options.url,
dirs_only=True)
if not options.dirsonly:
file_paths += fs.listdir(path,
wildcard=wildcard,
full=options.fullpath or options.url,
files_only=True)
for fs in fs_used:
try:
fs.close()
except FSError:
pass
if options.syspath:
# Path without a syspath, just won't be displayed
dir_paths = filter(None, [fs.getsyspath(path, allow_none=True) for path in dir_paths])
file_paths = filter(None, [fs.getsyspath(path, allow_none=True) for path in file_paths])
if options.url:
# Path without a syspath, just won't be displayed
dir_paths = filter(None, [fs.getpathurl(path, allow_none=True) for path in dir_paths])
file_paths = filter(None, [fs.getpathurl(path, allow_none=True) for path in file_paths])
dirs = frozenset(dir_paths)
paths = sorted(dir_paths + file_paths, key=lambda p:p.lower())
if not options.all:
paths = [path for path in paths if not isdotfile(path)]
if not paths:
return
def columnize(paths, num_columns):
col_height = (len(paths) + num_columns - 1) / num_columns
columns = [[] for _ in xrange(num_columns)]
col_no = 0
col_pos = 0
for path in paths:
columns[col_no].append(path)
col_pos += 1
if col_pos >= col_height:
col_no += 1
col_pos = 0
padded_columns = []
wrap_filename = self.wrap_filename
wrap_dirname = self.wrap_dirname
def wrap(path):
if path in dirs:
return wrap_dirname(path.ljust(max_width))
else:
return wrap_filename(path.ljust(max_width))
for column in columns:
if column:
max_width = max([len(path) for path in column])
else:
max_width = 1
max_width = min(max_width, terminal_width)
padded_columns.append([wrap(path) for path in column])
return padded_columns
def condense_columns(columns):
max_column_height = max([len(col) for col in columns])
lines = [[] for _ in xrange(max_column_height)]
for column in columns:
for line, path in zip(lines, column):
line.append(path)
return '\n'.join(u' '.join(line) for line in lines)
if options.long:
for path in paths:
if path in dirs:
output((self.wrap_dirname(path), '\n'))
else:
output((self.wrap_filename(path), '\n'))
else:
terminal_width = self.terminal_width
path_widths = [len(path) for path in paths]
smallest_paths = min(path_widths)
num_paths = len(paths)
num_cols = min(terminal_width / (smallest_paths + 2), num_paths)
while num_cols:
col_height = (num_paths + num_cols - 1) / num_cols
line_width = 0
for col_no in xrange(num_cols):
try:
col_width = max(path_widths[col_no*col_height:(col_no + 1) * col_height])
except ValueError:
continue
line_width += col_width
if line_width > terminal_width:
break;
line_width += 2
else:
if line_width - 1 <= terminal_width:
break
num_cols -= 1
num_cols = max(1, num_cols)
columns = columnize(paths, num_cols)
output((condense_columns(columns), '\n'))
def run():
return FSls().run()
if __name__ == "__main__":
sys.exit(run())
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