def abbreviated_working_dir(length=10):
""" """
ellipsis = '..' #TermColors.DarkGray+".."+TermColors.Normal
try:
path = unexpand(os.getcwd())
except OSError:
return "directory-disappeared"
while len(remove_control_characters(path)) > length:
dirs = path.split(os.path.sep);
# Find the longest directory in the path.
max_index = -1
max_length = 4
for i in range(len(dirs) - 1):
if len(dirs[i]) > max_length:
max_index = i
max_length = len(dirs[i])
# Shorten it by one character.
if max_index >= 0:
dirs[max_index] = dirs[max_index][:max_length-3] + ellipsis
path = "/".join(dirs)
# Didn't find anything to shorten. This is as good as it gets.
else:
break
return path
def get_aliases():
""" extract all aliases from the underlying bash shell. """
cmd = 'bash -c "echo alias|bash -i"'
p1 = Popen(cmd, shell=True, stdout=PIPE, stdin=PIPE, stderr=PIPE)
out, err = p1.communicate()
lines = out.split('\n')
lines = [x for x in lines if r_alias.match(x)]
aliases = []
for line in lines:
line = ' '.join(line.split()[1:]) # first word is 'alias'
equals_sign = line.find('=')
alias = line[:equals_sign]
cmd = line[equals_sign + 1:].strip()
cmd = remove_control_characters(unicode(cmd))
# cmd may or may not be quoted
cmd = cmd[1:-1] if cmd[0] in ['"', "'"] else cmd
aliases.append([alias, cmd])
return aliases