1059 lines
49 KiB
Python
Executable File
1059 lines
49 KiB
Python
Executable File
#!/usr/bin/env python
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# encoding: utf-8
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#
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# autorandr.py
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# Copyright (c) 2015, Phillip Berndt
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#
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# Autorandr rewrite in Python
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#
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# This script aims to be fully compatible with the original autorandr.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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from __future__ import print_function
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import binascii
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import copy
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import getopt
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import hashlib
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import os
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import posix
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import pwd
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import re
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import subprocess
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import sys
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import shutil
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import time
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from collections import OrderedDict
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from distutils.version import LooseVersion as Version
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from functools import reduce
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from itertools import chain
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try:
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input = raw_input
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except NameError:
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pass
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virtual_profiles = [
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# (name, description, callback)
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("common", "Clone all connected outputs at the largest common resolution", None),
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("horizontal", "Stack all connected outputs horizontally at their largest resolution", None),
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("vertical", "Stack all connected outputs vertically at their largest resolution", None),
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]
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help_text = """
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Usage: autorandr [options]
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-h, --help get this small help
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-c, --change reload current setup
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-s, --save <profile> save your current setup to profile <profile>
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-r, --remove <profile> remove profile <profile>
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-l, --load <profile> load profile <profile>
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-d, --default <profile> make profile <profile> the default profile
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--skip-options <option> comma separated list of xrandr arguments (e.g. "gamma")
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to skip both in detecting changes and applying a profile
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--force force (re)loading of a profile
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--fingerprint fingerprint your current hardware setup
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--config dump your current xrandr setup
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--dry-run don't change anything, only print the xrandr commands
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--debug enable verbose output
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--batch run autorandr for all users with active X11 sessions
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To prevent a profile from being loaded, place a script called "block" in its
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directory. The script is evaluated before the screen setup is inspected, and
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in case of it returning a value of 0 the profile is skipped. This can be used
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to query the status of a docking station you are about to leave.
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If no suitable profile can be identified, the current configuration is kept.
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To change this behaviour and switch to a fallback configuration, specify
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--default <profile>.
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Another script called "postswitch" can be placed in the directory
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~/.config/autorandr (or ~/.autorandr if you have an old installation) as well
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as in any profile directories: The scripts are executed after a mode switch
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has taken place and can notify window managers.
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The following virtual configurations are available:
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""".strip()
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class AutorandrException(Exception):
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def __init__(self, message, original_exception=None, report_bug=False):
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self.message = message
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self.report_bug = report_bug
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if original_exception:
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self.original_exception = original_exception
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trace = sys.exc_info()[2]
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while trace.tb_next:
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trace = trace.tb_next
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self.line = trace.tb_lineno
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else:
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try:
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import inspect
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self.line = inspect.currentframe().f_back.f_lineno
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except:
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self.line = None
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self.original_exception = None
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def __str__(self):
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retval = [ self.message ]
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if self.line:
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retval.append(" (line %d)" % self.line)
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if self.original_exception:
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retval.append(":\n ")
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retval.append(str(self.original_exception).replace("\n", "\n "))
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if self.report_bug:
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retval.append("\nThis appears to be a bug. Please help improving autorandr by reporting it upstream:"
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"\nhttps://github.com/phillipberndt/autorandr/issues"
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"\nPlease attach the output of `xrandr --verbose` to your bug report if appropriate.")
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return "".join(retval)
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class XrandrOutput(object):
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"Represents an XRandR output"
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# This regular expression is used to parse an output in `xrandr --verbose'
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XRANDR_OUTPUT_REGEXP = """(?x)
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^(?P<output>[^ ]+)\s+ # Line starts with output name
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(?: # Differentiate disconnected and connected in first line
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disconnected |
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unknown\ connection |
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(?P<connected>connected)
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)
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\s*
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(?P<primary>primary\ )? # Might be primary screen
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(?:\s*
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(?P<width>[0-9]+)x(?P<height>[0-9]+) # Resolution (might be overridden below!)
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\+(?P<x>-?[0-9]+)\+(?P<y>-?[0-9]+)\s+ # Position
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(?:\(0x[0-9a-fA-F]+\)\s+)? # XID
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(?P<rotate>(?:normal|left|right|inverted))\s+ # Rotation
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(?:(?P<reflect>X\ and\ Y|X|Y)\ axis)? # Reflection
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)? # .. but everything of the above only if the screen is in use.
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(?:[\ \t]*\([^\)]+\))(?:\s*[0-9]+mm\sx\s[0-9]+mm)?
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(?:[\ \t]*panning\ (?P<panning>[0-9]+x[0-9]+\+[0-9]+\+[0-9]+))? # Panning information
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(?:[\ \t]*tracking\ (?P<tracking>[0-9]+x[0-9]+\+[0-9]+\+[0-9]+))? # Tracking information
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(?:[\ \t]*border\ (?P<border>(?:[0-9]+/){3}[0-9]+))? # Border information
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(?:\s*(?: # Properties of the output
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Gamma: (?P<gamma>(?:inf|[0-9\.: e])+) | # Gamma value
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Transform: (?P<transform>(?:[\-0-9\. ]+\s+){3}) | # Transformation matrix
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EDID: (?P<edid>\s*?(?:\\n\\t\\t[0-9a-f]+)+) | # EDID of the output
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(?![0-9])[^:\s][^:\n]+:.*(?:\s\\t[\\t ].+)* # Other properties
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))+
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\s*
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(?P<modes>(?:
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(?P<mode_name>\S+).+?\*current.*\s+ # Interesting (current) resolution: Extract rate
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h:\s+width\s+(?P<mode_width>[0-9]+).+\s+
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v:\s+height\s+(?P<mode_height>[0-9]+).+clock\s+(?P<rate>[0-9\.]+)Hz\s* |
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\S+(?:(?!\*current).)+\s+h:.+\s+v:.+\s* # Other resolutions
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)*)
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"""
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XRANDR_OUTPUT_MODES_REGEXP = """(?x)
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(?P<name>\S+).+?(?P<preferred>\+preferred)?\s+
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h:\s+width\s+(?P<width>[0-9]+).+\s+
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v:\s+height\s+(?P<height>[0-9]+).+clock\s+(?P<rate>[0-9\.]+)Hz\s* |
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"""
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XRANDR_13_DEFAULTS = {
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"transform": "1,0,0,0,1,0,0,0,1",
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"panning": "0x0",
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}
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XRANDR_12_DEFAULTS = {
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"reflect": "normal",
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"rotate": "normal",
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"gamma": "1.0:1.0:1.0",
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}
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XRANDR_DEFAULTS = dict(list(XRANDR_13_DEFAULTS.items()) + list(XRANDR_12_DEFAULTS.items()))
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EDID_UNAVAILABLE = "--CONNECTED-BUT-EDID-UNAVAILABLE-"
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def __repr__(self):
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return "<%s%s %s>" % (self.output, self.short_edid, " ".join(self.option_vector))
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@property
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def short_edid(self):
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return ("%s..%s" % (self.edid[:5], self.edid[-5:])) if self.edid else ""
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@property
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def options_with_defaults(self):
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"Return the options dictionary, augmented with the default values that weren't set"
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if "off" in self.options:
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return self.options
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options = {}
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if xrandr_version() >= Version("1.3"):
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options.update(self.XRANDR_13_DEFAULTS)
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if xrandr_version() >= Version("1.2"):
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options.update(self.XRANDR_12_DEFAULTS)
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options.update(self.options)
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return { a: b for a, b in options.items() if a not in self.ignored_options }
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@property
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def filtered_options(self):
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"Return a dictionary of options without ignored options"
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return { a: b for a, b in self.options.items() if a not in self.ignored_options }
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@property
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def option_vector(self):
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"Return the command line parameters for XRandR for this instance"
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return sum([["--%s" % option[0], option[1]] if option[1] else ["--%s" % option[0]] for option in chain((("output", self.output),), sorted(self.options_with_defaults.items()))], [])
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@property
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def option_string(self):
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"Return the command line parameters in the configuration file format"
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return "\n".join([ " ".join(option) if option[1] else option[0] for option in chain((("output", self.output),), sorted(self.filtered_options.items()))])
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@property
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def sort_key(self):
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"Return a key to sort the outputs for xrandr invocation"
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if not self.edid:
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return -2
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if "off" in self.options:
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return -1
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if "pos" in self.options:
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x, y = map(float, self.options["pos"].split("x"))
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else:
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x, y = 0, 0
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return x + 10000 * y
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def __init__(self, output, edid, options):
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"Instanciate using output name, edid and a dictionary of XRandR command line parameters"
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self.output = output
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self.edid = edid
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self.options = options
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self.ignored_options = []
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self.remove_default_option_values()
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def set_ignored_options(self, options):
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"Set a list of xrandr options that are never used (neither when comparing configurations nor when applying them)"
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self.ignored_options = list(options)
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def remove_default_option_values(self):
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"Remove values from the options dictionary that are superflous"
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if "off" in self.options and len(self.options.keys()) > 1:
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self.options = { "off": None }
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return
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for option, default_value in self.XRANDR_DEFAULTS.items():
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if option in self.options and self.options[option] == default_value:
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del self.options[option]
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@classmethod
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def from_xrandr_output(cls, xrandr_output):
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"""Instanciate an XrandrOutput from the output of `xrandr --verbose'
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This method also returns a list of modes supported by the output.
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"""
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try:
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xrandr_output = xrandr_output.replace("\r\n", "\n")
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match_object = re.search(XrandrOutput.XRANDR_OUTPUT_REGEXP, xrandr_output)
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except:
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raise AutorandrException("Parsing XRandR output failed, there is an error in the regular expression.", report_bug = True)
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if not match_object:
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debug = debug_regexp(XrandrOutput.XRANDR_OUTPUT_REGEXP, xrandr_output)
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raise AutorandrException("Parsing XRandR output failed, the regular expression did not match: %s" % debug, report_bug = True)
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remainder = xrandr_output[len(match_object.group(0)):]
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if remainder:
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raise AutorandrException(("Parsing XRandR output failed, %d bytes left unmatched after regular expression, "
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"starting at byte %d with ..'%s'.") % (len(remainder), len(match_object.group(0)), remainder[:10]), report_bug=True)
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match = match_object.groupdict()
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modes = []
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if match["modes"]:
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modes = [ x.groupdict() for x in re.finditer(XrandrOutput.XRANDR_OUTPUT_MODES_REGEXP, match["modes"]) if x.group("name") ]
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if not modes:
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raise AutorandrException("Parsing XRandR output failed, couldn't find any display modes", report_bug=True)
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options = {}
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if not match["connected"]:
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edid = None
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else:
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edid = "".join(match["edid"].strip().split()) if match["edid"] else "%s-%s" % (XrandrOutput.EDID_UNAVAILABLE, match["output"])
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if not match["width"]:
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options["off"] = None
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else:
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if match["mode_name"]:
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options["mode"] = match["mode_name"]
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elif match["mode_width"]:
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options["mode"] = "%sx%s" % (match["mode_width"], match["mode_height"])
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else:
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if match["rotate"] not in ("left", "right"):
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options["mode"] = "%sx%s" % (match["width"], match["height"])
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else:
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options["mode"] = "%sx%s" % (match["height"], match["width"])
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options["rotate"] = match["rotate"]
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if match["primary"]:
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options["primary"] = None
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if match["reflect"] == "X":
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options["reflect"] = "x"
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elif match["reflect"] == "Y":
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options["reflect"] = "y"
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elif match["reflect"] == "X and Y":
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options["reflect"] = "xy"
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options["pos"] = "%sx%s" % (match["x"], match["y"])
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if match["panning"]:
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panning = [ match["panning"] ]
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if match["tracking"]:
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panning += [ "/", match["tracking"] ]
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if match["border"]:
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panning += [ "/", match["border"] ]
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options["panning"] = "".join(panning)
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if match["transform"]:
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transformation = ",".join(match["transform"].strip().split())
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if transformation != "1.000000,0.000000,0.000000,0.000000,1.000000,0.000000,0.000000,0.000000,1.000000":
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options["transform"] = transformation
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if not match["mode_name"]:
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# TODO We'd need to apply the reverse transformation here. Let's see if someone complains, I doubt that this
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# special case is actually required.
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print("Warning: Output %s has a transformation applied. Could not determine correct mode! Using `%s'." % (match["output"], options["mode"]), file=sys.stderr)
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if match["gamma"]:
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gamma = match["gamma"].strip()
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# xrandr prints different values in --verbose than it accepts as a parameter value for --gamma
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# Also, it is not able to work with non-standard gamma ramps. Finally, it auto-corrects 0 to 1,
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# so we approximate by 1e-10.
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gamma = ":".join([ str(max(1e-10, round(1./float(x), 3))) for x in gamma.split(":") ])
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options["gamma"] = gamma
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if match["rate"]:
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options["rate"] = match["rate"]
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return XrandrOutput(match["output"], edid, options), modes
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@classmethod
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def from_config_file(cls, edid_map, configuration):
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"Instanciate an XrandrOutput from the contents of a configuration file"
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options = {}
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for line in configuration.split("\n"):
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if line:
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line = line.split(None, 1)
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options[line[0]] = line[1] if len(line) > 1 else None
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edid = None
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if options["output"] in edid_map:
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edid = edid_map[options["output"]]
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else:
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# This fuzzy matching is for legacy autorandr that used sysfs output names
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fuzzy_edid_map = [ re.sub("(card[0-9]+|-)", "", x) for x in edid_map.keys() ]
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fuzzy_output = re.sub("(card[0-9]+|-)", "", options["output"])
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if fuzzy_output in fuzzy_edid_map:
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edid = edid_map[list(edid_map.keys())[fuzzy_edid_map.index(fuzzy_output)]]
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elif "off" not in options:
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raise AutorandrException("Failed to find an EDID for output `%s' in setup file, required as `%s' is not off in config file." % (options["output"], options["output"]))
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output = options["output"]
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del options["output"]
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return XrandrOutput(output, edid, options)
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def edid_equals(self, other):
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"Compare to another XrandrOutput's edid and on/off-state, taking legacy autorandr behaviour (md5sum'ing) into account"
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if self.edid and other.edid:
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if len(self.edid) == 32 and len(other.edid) != 32 and not other.edid.startswith(XrandrOutput.EDID_UNAVAILABLE):
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return hashlib.md5(binascii.unhexlify(other.edid)).hexdigest() == self.edid
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if len(self.edid) != 32 and len(other.edid) == 32 and not self.edid.startswith(XrandrOutput.EDID_UNAVAILABLE):
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return hashlib.md5(binascii.unhexlify(self.edid)).hexdigest() == other.edid
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return self.edid == other.edid
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def __ne__(self, other):
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return not (self == other)
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def __eq__(self, other):
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return self.edid_equals(other) and self.output == other.output and self.filtered_options == other.filtered_options
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def verbose_diff(self, other):
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"Compare to another XrandrOutput and return a list of human readable differences"
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diffs = []
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if not self.edid_equals(other):
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diffs.append("EDID `%s' differs from `%s'" % (self.short_edid, other.short_edid))
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if self.output != other.output:
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diffs.append("Output name `%s' differs from `%s'" % (self.output, other.output))
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if "off" in self.options and "off" not in other.options:
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diffs.append("The output is disabled currently, but active in the new configuration")
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elif "off" in other.options and "off" not in self.options:
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diffs.append("The output is currently enabled, but inactive in the new configuration")
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else:
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for name in set(chain.from_iterable((self.options.keys(), other.options.keys()))):
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if name not in other.options:
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diffs.append("Option --%s %sis not present in the new configuration" % (name, "(= `%s') " % self.options[name] if self.options[name] else ""))
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elif name not in self.options:
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diffs.append("Option --%s (`%s' in the new configuration) is not present currently" % (name, other.options[name]))
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elif self.options[name] != other.options[name]:
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diffs.append("Option --%s %sis `%s' in the new configuration" % (name, "(= `%s') " % self.options[name] if self.options[name] else "", other.options[name]))
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return diffs
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def xrandr_version():
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"Return the version of XRandR that this system uses"
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if getattr(xrandr_version, "version", False) is False:
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version_string = os.popen("xrandr -v").read()
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try:
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version = re.search("xrandr program version\s+([0-9\.]+)", version_string).group(1)
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xrandr_version.version = Version(version)
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except AttributeError:
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xrandr_version.version = Version("1.3.0")
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return xrandr_version.version
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def debug_regexp(pattern, string):
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"Use the partial matching functionality of the regex module to display debug info on a non-matching regular expression"
|
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try:
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import regex
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bounds = ( 0, len(string) )
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while bounds[0] != bounds[1]:
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half = int((bounds[0] + bounds[1]) / 2)
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if half == bounds[0]:
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break
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bounds = (half, bounds[1]) if regex.search(pattern, string[:half], partial=True) else (bounds[0], half - 1)
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partial_length = bounds[0]
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return ("Regular expression matched until position "
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"%d, ..'%s', and did not match from '%s'.." % (partial_length, string[max(0, partial_length-20):partial_length],
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string[partial_length:partial_length+10]))
|
|
except ImportError:
|
|
pass
|
|
return "Debug information would be available if the `regex' module was installed."
|
|
|
|
def parse_xrandr_output():
|
|
"Parse the output of `xrandr --verbose' into a list of outputs"
|
|
xrandr_output = os.popen("xrandr -q --verbose").read()
|
|
if not xrandr_output:
|
|
raise AutorandrException("Failed to run xrandr")
|
|
|
|
# We are not interested in screens
|
|
xrandr_output = re.sub("(?m)^Screen [0-9].+", "", xrandr_output).strip()
|
|
|
|
# Split at output boundaries and instanciate an XrandrOutput per output
|
|
split_xrandr_output = re.split("(?m)^([^ ]+ (?:(?:dis)?connected|unknown connection).*)$", xrandr_output)
|
|
if len(split_xrandr_output) < 2:
|
|
raise AutorandrException("No output boundaries found", report_bug=True)
|
|
outputs = OrderedDict()
|
|
modes = OrderedDict()
|
|
for i in range(1, len(split_xrandr_output), 2):
|
|
output_name = split_xrandr_output[i].split()[0]
|
|
output, output_modes = XrandrOutput.from_xrandr_output("".join(split_xrandr_output[i:i+2]))
|
|
outputs[output_name] = output
|
|
if output_modes:
|
|
modes[output_name] = output_modes
|
|
|
|
return outputs, modes
|
|
|
|
def load_profiles(profile_path):
|
|
"Load the stored profiles"
|
|
|
|
profiles = {}
|
|
for profile in os.listdir(profile_path):
|
|
config_name = os.path.join(profile_path, profile, "config")
|
|
setup_name = os.path.join(profile_path, profile, "setup")
|
|
if not os.path.isfile(config_name) or not os.path.isfile(setup_name):
|
|
continue
|
|
|
|
edids = dict([ x.strip().split() for x in open(setup_name).readlines() if x.strip() ])
|
|
|
|
config = {}
|
|
buffer = []
|
|
for line in chain(open(config_name).readlines(), ["output"]):
|
|
if line[:6] == "output" and buffer:
|
|
config[buffer[0].strip().split()[-1]] = XrandrOutput.from_config_file(edids, "".join(buffer))
|
|
buffer = [ line ]
|
|
else:
|
|
buffer.append(line)
|
|
|
|
for output_name in list(config.keys()):
|
|
if config[output_name].edid is None:
|
|
del config[output_name]
|
|
|
|
profiles[profile] = { "config": config, "path": os.path.join(profile_path, profile), "config-mtime": os.stat(config_name).st_mtime }
|
|
|
|
return profiles
|
|
|
|
def get_symlinks(profile_path):
|
|
"Load all symlinks from a directory"
|
|
|
|
symlinks = {}
|
|
for link in os.listdir(profile_path):
|
|
file_name = os.path.join(profile_path, link)
|
|
if os.path.islink(file_name):
|
|
symlinks[link] = os.readlink(file_name)
|
|
|
|
return symlinks
|
|
|
|
def find_profiles(current_config, profiles):
|
|
"Find profiles matching the currently connected outputs"
|
|
detected_profiles = []
|
|
for profile_name, profile in profiles.items():
|
|
config = profile["config"]
|
|
matches = True
|
|
for name, output in config.items():
|
|
if not output.edid:
|
|
continue
|
|
if name not in current_config or not output.edid_equals(current_config[name]):
|
|
matches = False
|
|
break
|
|
if not matches or any(( name not in config.keys() for name in current_config.keys() if current_config[name].edid )):
|
|
continue
|
|
if matches:
|
|
detected_profiles.append(profile_name)
|
|
return detected_profiles
|
|
|
|
def profile_blocked(profile_path, meta_information=None):
|
|
"""Check if a profile is blocked.
|
|
|
|
meta_information is expected to be an dictionary. It will be passed to the block scripts
|
|
in the environment, as variables called AUTORANDR_<CAPITALIZED_KEY_HERE>.
|
|
"""
|
|
return not exec_scripts(profile_path, "block", meta_information)
|
|
|
|
def output_configuration(configuration, config):
|
|
"Write a configuration file"
|
|
outputs = sorted(configuration.keys(), key=lambda x: configuration[x].sort_key)
|
|
for output in outputs:
|
|
print(configuration[output].option_string, file=config)
|
|
|
|
def output_setup(configuration, setup):
|
|
"Write a setup (fingerprint) file"
|
|
outputs = sorted(configuration.keys())
|
|
for output in outputs:
|
|
if configuration[output].edid:
|
|
print(output, configuration[output].edid, file=setup)
|
|
|
|
def save_configuration(profile_path, configuration):
|
|
"Save a configuration into a profile"
|
|
if not os.path.isdir(profile_path):
|
|
os.makedirs(profile_path)
|
|
with open(os.path.join(profile_path, "config"), "w") as config:
|
|
output_configuration(configuration, config)
|
|
with open(os.path.join(profile_path, "setup"), "w") as setup:
|
|
output_setup(configuration, setup)
|
|
|
|
def update_mtime(filename):
|
|
"Update a file's mtime"
|
|
try:
|
|
os.utime(filename, None)
|
|
return True
|
|
except:
|
|
return False
|
|
|
|
def call_and_retry(*args, **kwargs):
|
|
"""Wrapper around subprocess.call that retries failed calls.
|
|
|
|
This function calls subprocess.call and on non-zero exit states,
|
|
waits a second and then retries once. This mitigates #47,
|
|
a timing issue with some drivers.
|
|
"""
|
|
kwargs_redirected = dict(kwargs)
|
|
if hasattr(subprocess, "DEVNULL"):
|
|
kwargs_redirected["stdout"] = getattr(subprocess, "DEVNULL")
|
|
else:
|
|
kwargs_redirected["stdout"] = open(os.devnull, "w")
|
|
kwargs_redirected["stderr"] = kwargs_redirected["stdout"]
|
|
retval = subprocess.call(*args, **kwargs_redirected)
|
|
if retval != 0:
|
|
time.sleep(1)
|
|
retval = subprocess.call(*args, **kwargs)
|
|
return retval
|
|
|
|
def apply_configuration(new_configuration, current_configuration, dry_run=False):
|
|
"Apply a configuration"
|
|
outputs = sorted(new_configuration.keys(), key=lambda x: new_configuration[x].sort_key)
|
|
if dry_run:
|
|
base_argv = [ "echo", "xrandr" ]
|
|
else:
|
|
base_argv = [ "xrandr" ]
|
|
|
|
# There are several xrandr / driver bugs we need to take care of here:
|
|
# - We cannot enable more than two screens at the same time
|
|
# See https://github.com/phillipberndt/autorandr/pull/6
|
|
# and commits f4cce4d and 8429886.
|
|
# - We cannot disable all screens
|
|
# See https://github.com/phillipberndt/autorandr/pull/20
|
|
# - We should disable screens before enabling others, because there's
|
|
# a limit on the number of enabled screens
|
|
# - We must make sure that the screen at 0x0 is activated first,
|
|
# or the other (first) screen to be activated would be moved there.
|
|
# - If an active screen already has a transformation and remains active,
|
|
# the xrandr call fails with an invalid RRSetScreenSize parameter error.
|
|
# Update the configuration in 3 passes in that case. (On Haswell graphics,
|
|
# at least.)
|
|
# - Some implementations can not handle --transform at all, so avoid it unless
|
|
# necessary. (See https://github.com/phillipberndt/autorandr/issues/37)
|
|
|
|
auxiliary_changes_pre = []
|
|
disable_outputs = []
|
|
enable_outputs = []
|
|
remain_active_count = 0
|
|
for output in outputs:
|
|
if not new_configuration[output].edid or "off" in new_configuration[output].options:
|
|
disable_outputs.append(new_configuration[output].option_vector)
|
|
else:
|
|
if "off" not in current_configuration[output].options:
|
|
remain_active_count += 1
|
|
|
|
option_vector = new_configuration[output].option_vector
|
|
if xrandr_version() >= Version("1.3.0"):
|
|
if "transform" in current_configuration[output].options:
|
|
auxiliary_changes_pre.append(["--output", output, "--transform", "none"])
|
|
else:
|
|
try:
|
|
transform_index = option_vector.index("--transform")
|
|
if option_vector[transform_index+1] == XrandrOutput.XRANDR_DEFAULTS["transform"]:
|
|
option_vector = option_vector[:transform_index] + option_vector[transform_index+2:]
|
|
except ValueError:
|
|
pass
|
|
|
|
enable_outputs.append(option_vector)
|
|
|
|
# Perform pe-change auxiliary changes
|
|
if auxiliary_changes_pre:
|
|
argv = base_argv + list(chain.from_iterable(auxiliary_changes_pre))
|
|
if call_and_retry(argv) != 0:
|
|
raise AutorandrException("Command failed: %s" % " ".join(argv))
|
|
|
|
# Disable unused outputs, but make sure that there always is at least one active screen
|
|
disable_keep = 0 if remain_active_count else 1
|
|
if len(disable_outputs) > disable_keep:
|
|
if call_and_retry(base_argv + list(chain.from_iterable(disable_outputs[:-1] if disable_keep else disable_outputs))) != 0:
|
|
# Disabling the outputs failed. Retry with the next command:
|
|
# Sometimes disabling of outputs fails due to an invalid RRSetScreenSize.
|
|
# This does not occur if simultaneously the primary screen is reset.
|
|
pass
|
|
else:
|
|
disable_outputs = disable_outputs[-1:] if disable_keep else []
|
|
|
|
# If disable_outputs still has more than one output in it, one of the xrandr-calls below would
|
|
# disable the last two screens. This is a problem, so if this would happen, instead disable only
|
|
# one screen in the first call below.
|
|
if len(disable_outputs) > 0 and len(disable_outputs) % 2 == 0:
|
|
# In the context of a xrandr call that changes the display state, `--query' should do nothing
|
|
disable_outputs.insert(0, ['--query'])
|
|
|
|
# Enable the remaining outputs in pairs of two operations
|
|
operations = disable_outputs + enable_outputs
|
|
for index in range(0, len(operations), 2):
|
|
argv = base_argv + list(chain.from_iterable(operations[index:index+2]))
|
|
if call_and_retry(argv) != 0:
|
|
raise AutorandrException("Command failed: %s" % " ".join(argv))
|
|
|
|
def is_equal_configuration(source_configuration, target_configuration):
|
|
"Check if all outputs from target are already configured correctly in source"
|
|
for output in target_configuration.keys():
|
|
if (output not in source_configuration) or (source_configuration[output] != target_configuration[output]):
|
|
return False
|
|
return True
|
|
|
|
def add_unused_outputs(source_configuration, target_configuration):
|
|
"Add outputs that are missing in target to target, in 'off' state"
|
|
for output_name, output in source_configuration.items():
|
|
if output_name not in target_configuration:
|
|
target_configuration[output_name] = XrandrOutput(output_name, output.edid, { "off": None })
|
|
|
|
def remove_irrelevant_outputs(source_configuration, target_configuration):
|
|
"Remove outputs from target that ought to be 'off' and already are"
|
|
for output_name, output in source_configuration.items():
|
|
if "off" in output.options and output_name in target_configuration and "off" in target_configuration[output_name].options:
|
|
del target_configuration[output_name]
|
|
|
|
def generate_virtual_profile(configuration, modes, profile_name):
|
|
"Generate one of the virtual profiles"
|
|
configuration = copy.deepcopy(configuration)
|
|
if profile_name == "common":
|
|
common_resolution = [ set(( ( mode["width"], mode["height"] ) for mode in output_modes )) for output, output_modes in modes.items() if configuration[output].edid ]
|
|
common_resolution = reduce(lambda a, b: a & b, common_resolution[1:], common_resolution[0])
|
|
common_resolution = sorted(common_resolution, key=lambda a: int(a[0])*int(a[1]))
|
|
if common_resolution:
|
|
for output in configuration:
|
|
configuration[output].options = {}
|
|
if output in modes and configuration[output].edid:
|
|
configuration[output].options["mode"] = [ x["name"] for x in sorted(modes[output], key=lambda x: 0 if x["preferred"] else 1) if x["width"] == common_resolution[-1][0] and x["height"] == common_resolution[-1][1] ][0]
|
|
configuration[output].options["pos"] = "0x0"
|
|
else:
|
|
configuration[output].options["off"] = None
|
|
elif profile_name in ("horizontal", "vertical"):
|
|
shift = 0
|
|
if profile_name == "horizontal":
|
|
shift_index = "width"
|
|
pos_specifier = "%sx0"
|
|
else:
|
|
shift_index = "height"
|
|
pos_specifier = "0x%s"
|
|
|
|
for output in configuration:
|
|
configuration[output].options = {}
|
|
if output in modes and configuration[output].edid:
|
|
mode = sorted(modes[output], key=lambda a: int(a["width"])*int(a["height"]) + (10**6 if a["preferred"] else 0))[-1]
|
|
configuration[output].options["mode"] = mode["name"]
|
|
configuration[output].options["rate"] = mode["rate"]
|
|
configuration[output].options["pos"] = pos_specifier % shift
|
|
shift += int(mode[shift_index])
|
|
else:
|
|
configuration[output].options["off"] = None
|
|
return configuration
|
|
|
|
def print_profile_differences(one, another):
|
|
"Print the differences between two profiles for debugging"
|
|
if one == another:
|
|
return
|
|
print("| Differences between the two profiles:", file=sys.stderr)
|
|
for output in set(chain.from_iterable((one.keys(), another.keys()))):
|
|
if output not in one:
|
|
if "off" not in another[output].options:
|
|
print("| Output `%s' is missing from the active configuration" % output, file=sys.stderr)
|
|
elif output not in another:
|
|
if "off" not in one[output].options:
|
|
print("| Output `%s' is missing from the new configuration" % output, file=sys.stderr)
|
|
else:
|
|
for line in one[output].verbose_diff(another[output]):
|
|
print("| [Output %s] %s" % (output, line), file=sys.stderr)
|
|
print ("\\-", file=sys.stderr)
|
|
|
|
def exit_help():
|
|
"Print help and exit"
|
|
print(help_text)
|
|
for profile in virtual_profiles:
|
|
print(" %-10s %s" % profile[:2])
|
|
sys.exit(0)
|
|
|
|
def exec_scripts(profile_path, script_name, meta_information=None):
|
|
""""Run userscripts
|
|
|
|
This will run all executables from the profile folder, and global per-user
|
|
and system-wide configuration folders, named script_name or residing in
|
|
subdirectories named script_name.d.
|
|
|
|
meta_information is expected to be an dictionary. It will be passed to the block scripts
|
|
in the environment, as variables called AUTORANDR_<CAPITALIZED_KEY_HERE>.
|
|
|
|
Returns True unless any of the scripts exited with non-zero exit status.
|
|
"""
|
|
all_ok = True
|
|
if meta_information:
|
|
env = os.environ.copy()
|
|
env.update({ "AUTORANDR_%s" % str(key).upper(): str(value) for (key, value) in meta_information.items() })
|
|
else:
|
|
env = os.environ.copy()
|
|
|
|
# If there are multiple candidates, the XDG spec tells to only use the first one.
|
|
ran_scripts = set()
|
|
|
|
user_profile_path = os.path.expanduser("~/.autorandr")
|
|
if not os.path.isdir(user_profile_path):
|
|
user_profile_path = os.path.join(os.environ.get("XDG_CONFIG_HOME", os.path.expanduser("~/.config")), "autorandr")
|
|
|
|
for folder in chain((profile_path, os.path.dirname(profile_path), user_profile_path),
|
|
(os.path.join(x, "autorandr") for x in os.environ.get("XDG_CONFIG_DIRS", "/etc/xdg").split(":"))):
|
|
|
|
if script_name not in ran_scripts:
|
|
script = os.path.join(folder, script_name)
|
|
if os.access(script, os.X_OK | os.F_OK):
|
|
all_ok &= subprocess.call(script, env=env) != 0
|
|
ran_scripts.add(script_name)
|
|
|
|
script_folder = os.path.join(folder, "%s.d" % script_name)
|
|
if os.access(script_folder, os.R_OK | os.X_OK) and os.path.isdir(script_folder):
|
|
for file_name in os.listdir(script_folder):
|
|
check_name = "d/%s" % (file_name,)
|
|
if check_name not in ran_scripts:
|
|
script = os.path.join(script_folder, file_name)
|
|
if os.access(script, os.X_OK | os.F_OK):
|
|
all_ok &= subprocess.call(script, env=env) != 0
|
|
ran_scripts.add(check_name)
|
|
|
|
return all_ok
|
|
|
|
def dispatch_call_to_sessions(argv):
|
|
"""Invoke autorandr for each open local X11 session with the given options.
|
|
|
|
The function iterates over all processes not owned by root and checks
|
|
whether they have a DISPLAY variable set. It strips the screen from any
|
|
variable it finds (i.e. :0.0 becomes :0) and checks whether this display
|
|
has been handled already. If it has not, it forks, changes uid/gid to
|
|
the user owning the process, reuses the process's environment and runs
|
|
autorandr with the parameters from argv.
|
|
|
|
This function requires root permissions. It only works for X11 servers that
|
|
have at least one non-root process running. It is susceptible for attacks
|
|
where one user runs a process with another user's DISPLAY variable - in
|
|
this case, it might happen that autorandr is invoked for the other user,
|
|
which won't work. Since no other harm than prevention of automated
|
|
execution of autorandr can be done this way, the assumption is that in this
|
|
situation, the local administrator will handle the situation."""
|
|
X11_displays_done = set()
|
|
|
|
autorandr_binary = os.path.abspath(argv[0])
|
|
|
|
for directory in os.listdir("/proc"):
|
|
directory = os.path.join("/proc/", directory)
|
|
if not os.path.isdir(directory):
|
|
continue
|
|
environ_file = os.path.join(directory, "environ")
|
|
if not os.path.isfile(environ_file):
|
|
continue
|
|
uid = os.stat(environ_file).st_uid
|
|
|
|
# The following line assumes that user accounts start at 1000 and that
|
|
# no one works using the root or another system account. This is rather
|
|
# restrictive, but de facto default. Alternatives would be to use the
|
|
# UID_MIN from /etc/login.defs or FIRST_UID from /etc/adduser.conf;
|
|
# but effectively, both values aren't binding in any way.
|
|
# If this breaks your use case, please file a bug on Github.
|
|
if uid < 1000:
|
|
continue
|
|
|
|
process_environ = {}
|
|
for environ_entry in open(environ_file).read().split("\0"):
|
|
if "=" in environ_entry:
|
|
name, value = environ_entry.split("=", 1)
|
|
if name == "DISPLAY" and "." in value:
|
|
value = value[:value.find(".")]
|
|
process_environ[name] = value
|
|
display = process_environ["DISPLAY"] if "DISPLAY" in process_environ else None
|
|
|
|
if display and display not in X11_displays_done:
|
|
try:
|
|
pwent = pwd.getpwuid(uid)
|
|
except KeyError:
|
|
# User has no pwd entry
|
|
continue
|
|
|
|
print("Running autorandr as %s for display %s" % (pwent.pw_name, display))
|
|
child_pid = os.fork()
|
|
if child_pid == 0:
|
|
# This will throw an exception if any of the privilege changes fails,
|
|
# so it should be safe. Also, note that since the environment
|
|
# is taken from a process owned by the user, reusing it should
|
|
# not leak any information.
|
|
os.setgroups([])
|
|
os.setresgid(pwent.pw_gid, pwent.pw_gid, pwent.pw_gid)
|
|
os.setresuid(pwent.pw_uid, pwent.pw_uid, pwent.pw_uid)
|
|
os.chdir(pwent.pw_dir)
|
|
os.environ.clear()
|
|
os.environ.update(process_environ)
|
|
os.execl(autorandr_binary, autorandr_binary, *argv[1:])
|
|
os.exit(1)
|
|
os.waitpid(child_pid, 0)
|
|
|
|
X11_displays_done.add(display)
|
|
|
|
def main(argv):
|
|
try:
|
|
options = dict(getopt.getopt(argv[1:], "s:r:l:d:cfh", [ "batch", "dry-run", "change", "default=", "save=", "remove=", "load=", "force", "fingerprint", "config", "debug", "skip-options=", "help" ])[0])
|
|
except getopt.GetoptError as e:
|
|
print("Failed to parse options: {0}.\n"
|
|
"Use --help to get usage information.".format(str(e)),
|
|
file=sys.stderr)
|
|
sys.exit(posix.EX_USAGE)
|
|
|
|
# Batch mode
|
|
if "--batch" in options:
|
|
if ("DISPLAY" not in os.environ or not os.environ["DISPLAY"]) and os.getuid() == 0:
|
|
dispatch_call_to_sessions([ x for x in argv if x != "--batch" ])
|
|
else:
|
|
print("--batch mode can only be used by root and if $DISPLAY is unset")
|
|
return
|
|
|
|
profiles = {}
|
|
profile_symlinks = {}
|
|
try:
|
|
# Load profiles from each XDG config directory
|
|
# The XDG spec says that earlier entries should take precedence, so reverse the order
|
|
for directory in reversed(os.environ.get("XDG_CONFIG_DIRS", "/etc/xdg").split(":")):
|
|
system_profile_path = os.path.join(directory, "autorandr")
|
|
if os.path.isdir(system_profile_path):
|
|
profiles.update(load_profiles(system_profile_path))
|
|
profile_symlinks.update(get_symlinks(system_profile_path))
|
|
# For the user's profiles, prefer the legacy ~/.autorandr if it already exists
|
|
# profile_path is also used later on to store configurations
|
|
profile_path = os.path.expanduser("~/.autorandr")
|
|
if not os.path.isdir(profile_path):
|
|
# Elsewise, follow the XDG specification
|
|
profile_path = os.path.join(os.environ.get("XDG_CONFIG_HOME", os.path.expanduser("~/.config")), "autorandr")
|
|
if os.path.isdir(profile_path):
|
|
profiles.update(load_profiles(profile_path))
|
|
profile_symlinks.update(get_symlinks(profile_path))
|
|
# Sort by descending mtime
|
|
profiles = OrderedDict(sorted(profiles.items(), key=lambda x: -x[1]["config-mtime"]))
|
|
except Exception as e:
|
|
raise AutorandrException("Failed to load profiles", e)
|
|
|
|
profile_symlinks = { k: v for k, v in profile_symlinks.items() if v in (x[0] for x in virtual_profiles) or v in profiles }
|
|
|
|
config, modes = parse_xrandr_output()
|
|
|
|
if "--fingerprint" in options:
|
|
output_setup(config, sys.stdout)
|
|
sys.exit(0)
|
|
|
|
if "--config" in options:
|
|
output_configuration(config, sys.stdout)
|
|
sys.exit(0)
|
|
|
|
if "--skip-options" in options:
|
|
skip_options = [ y[2:] if y[:2] == "--" else y for y in ( x.strip() for x in options["--skip-options"].split(",") ) ]
|
|
for profile in profiles.values():
|
|
for output in profile["config"].values():
|
|
output.set_ignored_options(skip_options)
|
|
for output in config.values():
|
|
output.set_ignored_options(skip_options)
|
|
|
|
if "-s" in options:
|
|
options["--save"] = options["-s"]
|
|
if "--save" in options:
|
|
if options["--save"] in ( x[0] for x in virtual_profiles ):
|
|
raise AutorandrException("Cannot save current configuration as profile '%s':\nThis configuration name is a reserved virtual configuration." % options["--save"])
|
|
try:
|
|
profile_folder = os.path.join(profile_path, options["--save"])
|
|
save_configuration(profile_folder, config)
|
|
exec_scripts(profile_folder, "postsave", {"CURRENT_PROFILE": options["--save"], "PROFILE_FOLDER": profile_folder})
|
|
except Exception as e:
|
|
raise AutorandrException("Failed to save current configuration as profile '%s'" % (options["--save"],), e)
|
|
print("Saved current configuration as profile '%s'" % options["--save"])
|
|
sys.exit(0)
|
|
|
|
if "-r" in options:
|
|
options["--remove"] = options["-r"]
|
|
if "--remove" in options:
|
|
if options["--remove"] in ( x[0] for x in virtual_profiles ):
|
|
raise AutorandrException("Cannot remove profile '%s':\nThis configuration name is a reserved virtual configuration." % options["--remove"])
|
|
if options["--remove"] not in profiles.keys():
|
|
raise AutorandrException("Cannot remove profile '%s':\nThis profile does not exist." % options["--remove"])
|
|
try:
|
|
remove = True
|
|
profile_folder = os.path.join(profile_path, options["--remove"])
|
|
profile_dirlist = os.listdir(profile_folder)
|
|
profile_dirlist.remove("config")
|
|
profile_dirlist.remove("setup")
|
|
if profile_dirlist:
|
|
print("Profile folder '%s' contains the following additional files:\n---\n%s\n---" % (options["--remove"], "\n".join(profile_dirlist)))
|
|
response = input("Do you really want to remove profile '%s'? If so, type 'yes': " % options["--remove"]).strip()
|
|
if response != "yes":
|
|
remove = False
|
|
if remove is True:
|
|
shutil.rmtree(profile_folder)
|
|
print("Removed profile '%s'" % options["--remove"])
|
|
else:
|
|
print("Profile '%s' was not removed" % options["--remove"])
|
|
except Exception as e:
|
|
raise AutorandrException("Failed to remove profile '%s'" % (options["--remove"],), e)
|
|
sys.exit(0)
|
|
|
|
if "-h" in options or "--help" in options:
|
|
exit_help()
|
|
|
|
detected_profiles = find_profiles(config, profiles)
|
|
load_profile = False
|
|
|
|
if "-l" in options:
|
|
options["--load"] = options["-l"]
|
|
if "--load" in options:
|
|
load_profile = options["--load"]
|
|
else:
|
|
# Find the active profile(s) first, for the block script (See #42)
|
|
current_profiles = []
|
|
for profile_name in profiles.keys():
|
|
configs_are_equal = is_equal_configuration(config, profiles[profile_name]["config"])
|
|
if configs_are_equal:
|
|
current_profiles.append(profile_name)
|
|
block_script_metadata = {
|
|
"CURRENT_PROFILE": "".join(current_profiles[:1]),
|
|
"CURRENT_PROFILES": ":".join(current_profiles)
|
|
}
|
|
|
|
for profile_name in profiles.keys():
|
|
if profile_blocked(os.path.join(profile_path, profile_name), block_script_metadata):
|
|
print("%s (blocked)" % profile_name, file=sys.stderr)
|
|
continue
|
|
props = []
|
|
if profile_name in detected_profiles:
|
|
props.append("(detected)")
|
|
if ("-c" in options or "--change" in options) and not load_profile:
|
|
load_profile = profile_name
|
|
if profile_name in current_profiles:
|
|
props.append("(current)")
|
|
print("%s%s%s" % (profile_name, " " if props else "", " ".join(props)), file=sys.stderr)
|
|
if not configs_are_equal and "--debug" in options and profile_name in detected_profiles:
|
|
print_profile_differences(config, profiles[profile_name]["config"])
|
|
|
|
if "-d" in options:
|
|
options["--default"] = options["-d"]
|
|
if not load_profile and "--default" in options:
|
|
load_profile = options["--default"]
|
|
|
|
if load_profile:
|
|
if load_profile in profile_symlinks:
|
|
if "--debug" in options:
|
|
print("'%s' symlinked to '%s'" % (load_profile, profile_symlinks[load_profile]))
|
|
load_profile = profile_symlinks[load_profile]
|
|
|
|
if load_profile in ( x[0] for x in virtual_profiles ):
|
|
load_config = generate_virtual_profile(config, modes, load_profile)
|
|
scripts_path = os.path.join(profile_path, load_profile)
|
|
else:
|
|
try:
|
|
profile = profiles[load_profile]
|
|
load_config = profile["config"]
|
|
scripts_path = profile["path"]
|
|
except KeyError:
|
|
raise AutorandrException("Failed to load profile '%s': Profile not found" % load_profile)
|
|
if load_profile in detected_profiles and detected_profiles[0] != load_profile:
|
|
update_mtime(os.path.join(scripts_path, "config"))
|
|
add_unused_outputs(config, load_config)
|
|
if load_config == dict(config) and not "-f" in options and not "--force" in options:
|
|
print("Config already loaded", file=sys.stderr)
|
|
sys.exit(0)
|
|
if "--debug" in options and load_config != dict(config):
|
|
print("Loading profile '%s'" % load_profile)
|
|
print_profile_differences(config, load_config)
|
|
|
|
remove_irrelevant_outputs(config, load_config)
|
|
|
|
try:
|
|
if "--dry-run" in options:
|
|
apply_configuration(load_config, config, True)
|
|
else:
|
|
script_metadata = {
|
|
"CURRENT_PROFILE": load_profile,
|
|
"PROFILE_FOLDER": scripts_path,
|
|
}
|
|
exec_scripts(scripts_path, "preswitch", script_metadata)
|
|
if "--debug" in options:
|
|
print("Going to run:")
|
|
apply_configuration(load_config, config, True)
|
|
apply_configuration(load_config, config, False)
|
|
exec_scripts(scripts_path, "postswitch", script_metadata)
|
|
except Exception as e:
|
|
raise AutorandrException("Failed to apply profile '%s'" % load_profile, e, True)
|
|
|
|
if "--dry-run" not in options and "--debug" in options:
|
|
new_config, _ = parse_xrandr_output()
|
|
if not is_equal_configuration(new_config, load_config):
|
|
print("The configuration change did not go as expected:")
|
|
print_profile_differences(new_config, load_config)
|
|
|
|
sys.exit(0)
|
|
|
|
def exception_handled_main(argv=sys.argv):
|
|
try:
|
|
main(sys.argv)
|
|
except AutorandrException as e:
|
|
print(e, file=sys.stderr)
|
|
sys.exit(1)
|
|
except Exception as e:
|
|
if not len(str(e)): # BdbQuit
|
|
print("Exception: {0}".format(e.__class__.__name__))
|
|
sys.exit(2)
|
|
|
|
print("Unhandled exception ({0}). Please report this as a bug at https://github.com/phillipberndt/autorandr/issues.".format(e), file=sys.stderr)
|
|
raise
|
|
|
|
if __name__ == '__main__':
|
|
exception_handled_main()
|