157 lines
4.7 KiB
Bash
157 lines
4.7 KiB
Bash
#!/bin/sh
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# Name: gparted
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# Purpose: Perform appropriate startup of GParted executable gpartedbin.
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#
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# The purpose of these startup methods is to prevent
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# devices from being automounted, and to ensure only one
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# instance of GParted is running. File system problems can
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# occur if devices are mounted prior to the completion of
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# GParted's operations, or if multiple partition editing
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# tools are in use concurrently.
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#
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# Copyright (C) 2008, 2009, 2010, 2013 Curtis Gedak
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#
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# This file is part of GParted.
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#
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# GParted 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 2 of the License, or
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# (at your option) any later version.
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#
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# GParted 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 GParted. If not, see <http://www.gnu.org/licenses/>.
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#
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#
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# Only permit one instance of GParted to execute at a time
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#
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if test "z`ps -e | grep gpartedbin`" != "z"; then
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echo "The process gpartedbin is already running."
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echo "Only one gpartedbin process is permitted."
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exit 1
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fi
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#
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# Search PATH to determine if systemctl program can be found
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# and if appropriate daemon is running.
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#
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HAVE_SYSTEMCTL=no
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for k in '' `echo "$PATH" | sed 's,:, ,g'`; do
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if test -x "$k/systemctl"; then
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if test "z`ps -e | grep systemd`" != "z"; then
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HAVE_SYSTEMCTL=yes
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break
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fi
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fi
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done
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#
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# Search PATH to determine if udisks program can be found
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# and if appropriate daemon is running.
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#
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HAVE_UDISKS=no
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for k in '' `echo "$PATH" | sed 's,:, ,g'`; do
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if test -x "$k/udisks"; then
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if test "z`ps -e | grep udisks-daemon`" != "z"; then
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HAVE_UDISKS=yes
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break
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fi
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fi
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done
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#
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# Search PATH to determine if devkit-disks program can be found
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# and if appropriate daemon is running.
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# On December 1, 2009, devkit-disks was named udisks.
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#
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HAVE_DEVKIT_DISKS=no
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for k in '' `echo "$PATH" | sed 's,:, ,g'`; do
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if test -x "$k/devkit-disks"; then
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if test "z`ps -e | grep devkit-disks-da`" != "z"; then
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HAVE_DEVKIT_DISKS=yes
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break
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fi
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fi
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done
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#
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# Search PATH to determine if hal-lock program can be found
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# and if appropriate daemon is running.
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#
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HAVE_HAL_LOCK=no
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for k in '' `echo "$PATH" | sed 's,:, ,g'`; do
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if test -x "$k/hal-lock"; then
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if test "z`ps -e | grep hald`" != "z"; then
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HAVE_HAL_LOCK=yes
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break
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fi
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fi
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done
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#
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# Define base command for executing GParted
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#
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BASE_CMD="@installdir@/gpartedbin $*"
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#
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# If no root privileges, then invoke gpartedbin directly
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# so that a graphical warning is displayed.
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# Otherwise udisks, devkit-disks, or hal-lock in the later
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# invocation may prevent gpartedbin from starting and hence
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# the user will not see a graphical warning.
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#
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if test "x`id -u`" != "x0"; then
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echo "Root privileges are required for running gparted."
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$BASE_CMD
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exit 1
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fi
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#
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# Use systemctl to prevent automount by masking currently unmasked mount points
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#
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if test "x$HAVE_SYSTEMCTL" = "xyes"; then
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MOUNTLIST=`systemctl list-unit-files --full --all -t mount --no-legend | grep -v masked | cut -f1 -d' '`
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systemctl --runtime mask --quiet -- $MOUNTLIST
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fi
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#
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# Use both udisks and hal-lock for invocation if both binaries exist and both
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# daemons are running.
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# Else use udisks if binary exists and daemon is running.
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# Else use both devkit-disks and hal-lock for invocation if both binaries exist
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# and both of the daemons are running.
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# Else use devkit-disks if binary exists and daemon is running.
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# Otherwise use hal-lock for invocation if binary exists and daemon is running.
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# If the above checks fail then simply run gpartedbin.
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#
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if test "x$HAVE_UDISKS" = "xyes" && test "x$HAVE_HAL_LOCK" = "xyes"; then
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udisks --inhibit -- \
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hal-lock --interface org.freedesktop.Hal.Device.Storage --exclusive \
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--run "$BASE_CMD"
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elif test "x$HAVE_UDISKS" = "xyes"; then
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udisks --inhibit -- $BASE_CMD
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elif test "x$HAVE_DEVKIT_DISKS" = "xyes" && test "x$HAVE_HAL_LOCK" = "xyes"; then
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devkit-disks --inhibit -- \
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hal-lock --interface org.freedesktop.Hal.Device.Storage --exclusive \
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--run "$BASE_CMD"
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elif test "x$HAVE_DEVKIT_DISKS" = "xyes"; then
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devkit-disks --inhibit -- $BASE_CMD
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elif test "x$HAVE_HAL_LOCK" = "xyes"; then
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hal-lock --interface org.freedesktop.Hal.Device.Storage --exclusive \
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--run "$BASE_CMD"
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else
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$BASE_CMD
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fi
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#
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# Use systemctl to restore that status of any mount points changed above
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#
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if test "x$HAVE_SYSTEMCTL" = "xyes"; then
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systemctl --runtime unmask --quiet -- $MOUNTLIST
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fi
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