bumblebee_status/modules/contrib/portage_status.py
"""Displays the status of Gentoo portage operations.
Parameters:
* portage_status.logfile: logfile for portage (default is /var/log/emerge.log)
contributed by `andrewreisner <https://github.com/andrewreisner>`_ - many thanks!
"""
import os
import core.module
import core.widget
class Module(core.module.Module):
def __init__(self, config, theme):
super().__init__(config, theme, core.widget.Widget(self.output))
self.__logfile = self.parameter("logfile", "/var/log/emerge.log")
self.clear()
def clear(self):
self.__action = ""
self.__package = ""
self.__status = ""
def output(self, widget):
return " ".join(
[
atom
for atom in (self.__action, self.__package, self.__status)
if atom != ""
]
)
def state(self, widgets):
if self.__action == "":
return "idle"
return "active"
def update(self):
try:
with open(self.__logfile, "rb") as f:
f.seek(-2, os.SEEK_END)
while f.read(1) != b"\n":
f.seek(-2, os.SEEK_CUR)
last_line = f.readline().decode()
if "===" in last_line:
if "Unmerging..." in last_line:
self.__action = "Unmerging"
package_beg = last_line.find("(") + 1
package_end = last_line.find("-", last_line.find("/")) - 1
self.__package = last_line[package_beg : package_end + 1]
else: # merging
status_beg = last_line.find("(")
status_end = last_line.find(")")
self.__status = last_line[status_beg : status_end + 1]
package_beg = last_line.find("(", status_end) + 1
package_end = (
package_beg
+ last_line[package_beg:].find(
"-", last_line[package_beg:].find("/")
)
- 1
)
self.__package = last_line[package_beg : package_end + 1]
action_beg = status_end + 2
action_end = package_beg - 3
self.__action = last_line[action_beg : action_end + 1]
else:
self.clear()
except Exception:
self.clear()