update-manager: terminal-based version

[David Hedlund]

A terminal-based variant of update-manager would be particularly useful 
for Ubuntu Server, as it does not use a desktop environment by default 
as required by update-manager (the "graphical management of software 
packages updates").

On 2023-05-19 03:12, David Hedlund wrote:
>
>
> On 2023-05-19 02:06, David Hedlund wrote:
>>
>> I expect that there are some useful terminal packages or script that 
>> are performing the same thing as the update-manager GUI. If you are 
>> aware of any such solution, please give me the name of the software.
>>
>>
>> If not, then it would be useful to make a clone of update-manager 
>> that could be either part of, or packaged, for Ubuntu. Just to try it 
>> out, I wrote a bash script (just execute it, and run the alias `u` to 
>> try it), see the attached file. However, I'm not satisfied with it, 
>> because it's not yet a full-feathered /clone/ of update-manager:
>>
>>
>>  Which commands are executed when:
>>
> I just submitted: Feature request: List executed commands in "Details" 
> - https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/2020140
>
> But it does not solve the main issue of the subject of this mail.
>
>> * update-manager is opened:
>>
>>     * I'm confident that this is the first executed command: sudo 
>> apt-get -y update
>>
>>     * Then packages are listed, exactly which command is executed to 
>> figure this out?
>>
>> * The "Install Now" button is clicked on. Examples, which of these 
>> commands are executed, and in which order (please quote with source 
>> code and file names as references)?:
>>
>> apt-get upgrade
>>
>> apt-get dist-upgrade
>>
>> apt autoremove
>>
>> apt clean
>>
>> apt full-upgrade
>>
>> Is something else executed?
>>
>>
>> * /var/run/reboot-required is used to determine if the GUI should 
>> display a button used to restart the distro
>>
>> UpdateManager.py[1]
>>
>> ----------->8--------------
>>
>> # file that signals if we need to reboot
>> REBOOT_REQUIRED_FILE = "/var/run/reboot-required"
>>
>> ----------->8--------------
>>
>> 1: git clone git://git.launchpad.net/ubuntu/+source/update-manager && 
>> grep -r "reboot-required" .
>>
>>
>>
>
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