106 lines
3.4 KiB
Python
106 lines
3.4 KiB
Python
import os
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import sys
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from ..utils import warn, py3, BasicSegment
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ELLIPSIS = u'\u2026'
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def replace_home_dir(cwd):
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home = os.path.realpath(os.getenv('HOME'))
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if cwd.startswith(home):
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return '~' + cwd[len(home):]
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return cwd
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def split_path_into_names(cwd):
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names = cwd.split(os.sep)
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if names[0] == '':
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names = names[1:]
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if not names[0]:
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return ['/']
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return names
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def requires_special_home_display(powerline, name):
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"""Returns true if the given directory name matches the home indicator and
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the chosen theme should use a special home indicator display."""
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return (name == '~' and powerline.theme.HOME_SPECIAL_DISPLAY)
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def maybe_shorten_name(powerline, name):
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"""If the user has asked for each directory name to be shortened, will
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return the name up to their specified length. Otherwise returns the full
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name."""
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max_size = powerline.segment_conf("cwd", "max_dir_size")
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if max_size:
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return name[:max_size]
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return name
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def get_fg_bg(powerline, name, is_last_dir):
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"""Returns the foreground and background color to use for the given name.
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"""
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if requires_special_home_display(powerline, name):
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return (powerline.theme.HOME_FG, powerline.theme.HOME_BG,)
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if is_last_dir:
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return (powerline.theme.CWD_FG, powerline.theme.PATH_BG,)
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else:
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return (powerline.theme.PATH_FG, powerline.theme.PATH_BG,)
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def add_cwd_segment(powerline):
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cwd = powerline.cwd
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if not py3:
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cwd = cwd.decode("utf-8")
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cwd = replace_home_dir(cwd)
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names = split_path_into_names(cwd)
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full_cwd = powerline.segment_conf("cwd", "full_cwd", False)
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max_depth = powerline.segment_conf("cwd", "max_depth", 5)
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if max_depth <= 0:
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warn("Ignoring cwd.max_depth option since it's not greater than 0")
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elif len(names) > max_depth:
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# https://github.com/milkbikis/powerline-shell/issues/148
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# n_before is the number is the number of directories to put before the
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# ellipsis. So if you are at ~/a/b/c/d/e and max depth is 4, it will
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# show `~ a ... d e`.
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#
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# max_depth must be greater than n_before or else you end up repeating
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# parts of the path with the way the splicing is written below.
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n_before = 2 if max_depth > 2 else max_depth - 1
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names = names[:n_before] + [ELLIPSIS] + names[n_before - max_depth:]
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if powerline.segment_conf("cwd", "mode") == "dironly":
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# The user has indicated they only want the current directory to be
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# displayed, so chop everything else off
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names = names[-1:]
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elif powerline.segment_conf("cwd", "mode") == "plain":
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joined = os.path.sep.join(names)
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powerline.append(" %s " % (joined,), powerline.theme.CWD_FG,
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powerline.theme.PATH_BG)
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return
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for i, name in enumerate(names):
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is_last_dir = (i == len(names) - 1)
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fg, bg = get_fg_bg(powerline, name, is_last_dir)
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separator = powerline.separator_thin
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separator_fg = powerline.theme.SEPARATOR_FG
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if requires_special_home_display(powerline, name) or is_last_dir:
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separator = None
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separator_fg = None
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if not (is_last_dir and full_cwd):
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name = maybe_shorten_name(powerline, name)
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powerline.append(' %s ' % name, fg, bg, separator, separator_fg)
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class Segment(BasicSegment):
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def add_to_powerline(self):
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add_cwd_segment(self.powerline)
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