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annotate lib/localdisplay.py @ 1060:0cd92c2f8cf4

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find .Xauthority better, tools that talk to X Ignore-this: b6a9920c14e702c68785d794b28ce141 darcs-hash:fb330d329f733cd54240f524daba6c853f95238b
author drewp <drewp@bigasterisk.com>
date Mon, 21 Mar 2016 04:21:06 -0700
parents 3184772368a5
children 9ee169ba3f0e
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2d055bce2e60 Xorg display number fetcher for use by xidle and dpms
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1 import psutil, os
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2
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3 def setDisplayToLocalX():
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4 """
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5 set DISPLAY env var in this process to the id of the X process on localhost
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6
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7 I might need something like xauth merge /run/gdm/auth-for-gdm-xxxxxx/database too
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8 and this isn't automated yet
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9 """
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10 for pid in psutil.get_pid_list():
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11 try:
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12 proc = psutil.Process(pid)
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13 if proc.exe not in ['/usr/bin/Xorg', '/usr/bin/X', '/usr/bin/X11/X']:
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14 continue
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15 except (psutil.error.AccessDenied, psutil.error.NoSuchProcess):
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16 continue
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17 display = [arg for arg in proc.cmdline if not arg.startswith('-')][1]
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18 if display == 'tcp': # ??
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19 display = ":0.0"
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20 assert display.startswith(':'), display
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21 os.environ['DISPLAY'] = display
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0cd92c2f8cf4 find .Xauthority better, tools that talk to X
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22 os.environ['XAUTHORITY'] = os.path.expanduser('~/.Xauthority')
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23 break
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24 else:
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25 raise ValueError("didn't find an Xorg process")