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#!/bin/sh
##########################################################
# Copyright (C) 2010-2015 VMware, Inc. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published
# by the Free Software Foundation version 2.1 and no later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the Lesser GNU General Public
# License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
#
##########################################################
##########################################################################
# DO NOT modify this file directly as it will be overwritten the next
# time the VMware Tools are installed.
##########################################################################
#
# statechange.sh
#
# This script is a refactored version of the legacy power scripts (e.g.,
# poweron-vm-default). It expects to be installed in their places --
# in other words, `basename "$0"` might be poweron-vm-default.
#
# Handy reference/shorthand used in this doc/scripts:
# TOOLS_CONFDIR ::= Depends on platform and installation settings. Likely
# "/etc/vmware-tools" or
# "/Library/Application Support/VMware Tools"
# powerOp ::= One of "poweron-vm", "poweroff-vm", "suspend-vm", and
# "resume-vm".
# vmwScriptDir ::= $TOOLS_CONFDIR/scripts/vmware
# userScriptDir ::= $TOOLS_CONFDIR/scripts/${powerOp}-default.d
#
# End users may install scripts of their own under $userScriptDir. They
# are executed in alphabetical order with "$powerOp" as the only argument.
#
# NB: This directory layout remains to preserve backwards compatibility. End
# users are free to write a single script which uses its only parameter
# (${powerOp}) as a discriminator, and then install symlinks to it in each
# of the ${powerOp}-default.d directories.
#
# On power-on and resume, VMware's scripts execute before the end user's. On
# suspend and power-off, the end user's execute before VMware's. (This way,
# VMware stops services only after the user's scripts have finished their
# work, and conversely restores the same services before the user's scripts
# attempt to use them.)
#
# Should any script exit non-zero, only its value will be saved to exitCode.
# (Any further non-zero exits will have no effect on exitCode.) This script
# exits with $exitCode.
#
# XXX Consider using the available/enabled pattern for VMware's scripts.
#
# XXX This should be staged as a single executable whereby the desired
# power operation is passed in as a parameter. (I.e., one would run
# "/path/to/statechange.sh suspend-vm" rather than having to install
# statechange.sh as suspend-vm-default.)
#
echo `date` ": Executing '$0'"
# See above.
TOOLS_CONFDIR=`dirname "$0"`
export TOOLS_CONFDIR
# Pull in subroutines like Panic.
. "$TOOLS_CONFDIR"/statechange.subr
#
# RunScripts --
#
# Executes scripts installed under $scriptDir.
#
# Side effects:
# exitCode may be incremented.
#
RunScripts() {
scriptDir="$1"
if [ -d "$scriptDir" ]; then
for scriptFile in "$scriptDir"/*; do
if [ -x "$scriptFile" ]; then
"$scriptFile" $powerOp
exitCode=`expr $exitCode \| $?`
fi
done
fi
}
#
# main --
#
# Entry point. See comments at top of file for details.
#
# Results:
# Exits with $exitCode.
#
main() {
# This is sanity checked in the case/esac bit below.
powerOp=`basename "$0" | sed 's,-default,,'`
exitCode=0
vmwScriptDir="$TOOLS_CONFDIR/scripts/vmware"
userScriptDir="$TOOLS_CONFDIR/scripts/${powerOp}-default.d"
case "$powerOp" in
poweron-vm|resume-vm)
RunScripts "$vmwScriptDir"
RunScripts "$userScriptDir"
;;
poweroff-vm|suspend-vm)
RunScripts "$userScriptDir"
RunScripts "$vmwScriptDir"
;;
*)
Panic "Invalid argument: $powerOp"
;;
esac
return $exitCode
}
main
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