There you go, congratulations on your first patch!!

Authenticate org.kde.kpmcore.externalcommand.init action inside ExternalCommand::startHelper() using Polkit Backend
@stikonas Below error is troubling me for sometime.

Remove unneded function

More cleanup and remove unneded commented code

Add function to stop action inside the polkit backend

Remove Q_PLUGIN_METADATA

Properly handle reply from Authentication agent

More code cleanup.
Remove unnecessary includes.

some more changes

Remove unneeded functions

Lay basic outline of executing and revoking actions from inside ExternalCommand

Correct documentation error.
@stikonas I will be making more changes to it and will implement those Q_SLOTS soon.
(sendProgressStep())

A bit cleanup

Use correct signal

Add documentation

1. Use synchronous versions of register and unregistering authentication agents
2. Call authenticationAgentResponseSync() on successfull authentication by the user

Rebase on master

Add more functions

Do not include PolkitQt5 directories

Remove timer from run(), it is being called in start() nonetheless

USe new signal slot syntax

Does this function had any use when it was first implemented? Or may it come to use later?

Fix copy paste error

Make requested changes

Correct tool name and website

Made suggested changes

This is seprate from the patch sitter had made. Here, application quitting is inside if.

Thread 8 "m_DeviceScanner" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffca6df700 (LWP 4074)]
0x00007ffff5934148 in vtable for QTreeWidgetItem () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
(gdb) bt
#0 0x00007ffff5934148 in vtable for QTreeWidgetItem () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#1 0x00007ffff447e9d2 in QObject::connect(QObject const*, char const*, QObject const*, char const*, Qt::ConnectionType) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2 0x00007ffff7b85d85 in ExternalCommand::copyBlocks(CopySource const&, CopyTarget&) (this=this@entry=0x7fffca6de8b0, source=..., target=...) at /home/aryan/kde/src/kpmcore/src/util/externalcommand.cpp:185
#3 0x00007fffddf01e0e in SfdiskBackend::updateDevicePartitionTable(Device&, QJsonObject const&) (this=this@entry=0x5555558fe8d0, d=..., jsonPartitionTable=...)

at /home/aryan/kde/src/kpmcore/src/plugins/sfdisk/sfdiskbackend.cpp:364

#4 0x00007fffddf04a4e in SfdiskBackend::scanDevice(QString const&) (this=0x5555558fe8d0, deviceNode=...) at /home/aryan/kde/src/kpmcore/src/plugins/sfdisk/sfdiskbackend.cpp:212
#5 0x00007fffddf017e7 in SfdiskBackend::scanDevices(QFlags<ScanFlag>) (this=0x5555558fe8d0, scanFlags=...) at /home/aryan/kde/src/kpmcore/src/plugins/sfdisk/sfdiskbackend.cpp:115
#6 0x00007ffff7b37106 in DeviceScanner::scan() (this=0x5555558f6920) at /home/aryan/kde/src/kpmcore/src/core/devicescanner.cpp:66
#7 0x00007ffff4270bc2 in () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8 0x00007ffff04a46db in start_thread (arg=0x7fffca6df700) at pthread_create.c:463
#9 0x00007ffff3b7088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
(gdb) thread 0
Invalid thread ID: 0
(gdb) thread 1
[Switching to thread 1 (Thread 0x7ffff7fa5840 (LWP 4005))]
#0 0x00007ffff3b5f0b4 in GI_libc_read (fd=5, buf=0x7fffffffd850, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27

Add mkfs.minix and fsck.minix to externalcommand_whitelist.h

Remove redundant include

Rebase

@cjlcarvalho Did you see minix added to the menu? Can you please try applying the patch?

Whitespace consistency

Whitespace consistency

Remove redundant includes

Rebase

Remove FindPolkitQt1.cmake

Made suggested changes

diff relative to D21564

Some more cleanup

Remove unneded includes and use Q_UNUSED() variables

Unregistration of the auth agent

Proper rebase

Move FindPolkitQt1.cmake to cmake/modules/

Remove extra variable

Use authority instance to register the listener