dotfiles/config/powerline-shell/segments/hg.py
2021-04-20 13:12:35 +02:00

68 lines
2 KiB
Python

import subprocess
from ..utils import RepoStats, ThreadedSegment, get_subprocess_env
def _get_hg_branch():
p = subprocess.Popen(["hg", "branch"],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
env=get_subprocess_env())
branch = p.communicate()[0].decode("utf-8").rstrip('\n')
return branch
def parse_hg_stats(status):
stats = RepoStats()
for statusline in status:
if statusline[0] == "A":
stats.staged += 1
elif statusline[0] == "?":
stats.new += 1
else: # [M]odified, [R]emoved, (!)missing
stats.changed += 1
return stats
def _get_hg_status(output):
"""This function exists to enable mocking the `hg status` output in tests.
"""
return output[0].decode("utf-8").splitlines()
def build_stats():
try:
p = subprocess.Popen(["hg", "status"],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
env=get_subprocess_env())
except OSError:
# Will be thrown if hg cannot be found
return None, None
pdata = p.communicate()
if p.returncode != 0:
return None, None
status = _get_hg_status(pdata)
stats = parse_hg_stats(status)
branch = _get_hg_branch()
return stats, branch
class Segment(ThreadedSegment):
def run(self):
self.stats, self.branch = build_stats()
def add_to_powerline(self):
self.join()
if not self.stats:
return
bg = self.powerline.theme.REPO_CLEAN_BG
fg = self.powerline.theme.REPO_CLEAN_FG
if self.stats.dirty:
bg = self.powerline.theme.REPO_DIRTY_BG
fg = self.powerline.theme.REPO_DIRTY_FG
if self.powerline.segment_conf("vcs", "show_symbol"):
symbol = RepoStats().symbols["hg"] + " "
else:
symbol = ""
self.powerline.append(" " + symbol + self.branch + " ", fg, bg)
self.stats.add_to_powerline(self.powerline)