Reboots Grasshopper.

reboot_GH.py

"""
Reboots Grasshopper.
    Inputs: Reboot: Set to 'True' to reboot Grasshopper.
"""

ghenv.Component.Name = "Reboot Grasshopper"
ghenv.Component.NickName = 'GH-Rebooter'

# Stephen P. Maher / 2015
# Many thanks to Andrew Heumann for the help.

import Grasshopper as gh
import System.Drawing as sd
import rhinoscriptsyntax as rs

comp = ghenv.Component
ghdoc = comp.OnPingDocument()
canvas = gh.Instances.ActiveCanvas
hasExecutedOnce = False

# The array accessor lets you pick which input you want
targetInput = comp.Params.Input[0]

# Define a function to expire this component.
def expireThis(doc):
    hasExecutedOnce = True
    comp.ExpireSolution(False)

# Make sure the input doesn't already have a button
if targetInput.Sources.Count==0:
    
    # Create the button
    button = gh.Kernel.Special.GH_ButtonObject()

# Recompute this component so that it has access to the value of the button
if not hasExecutedOnce:
    
    # Add the button
    ghdoc.AddObject(button,False,ghdoc.ObjectCount+1)
    thisPivot = targetInput.Attributes.Pivot
    
    # Set the button location
    button.Attributes.Pivot = sd.PointF(thisPivot.X-200,thisPivot.Y-10)
    
    # Connect the button
    targetInput.AddSource(button)
    
    # Expire the solution
    ghdoc.ScheduleSolution(5,expireThis)

if Reboot:
    rs.Command("_GrasshopperUnloadPlugin", True) # Unload Grasshopper
    rs.Command("_Grasshopper", True) # Reload Grasshopper