[CLOSED] Build app with all dependent library

[MarkMLl]

I am pretty sure that this Ubuntu Server doesn't come with X installed, and won't be installed either.

The server is a firebird database server. My app is a small utility to backup and restore database for dummies users.

I came up with an idea, please suggest me if this is do able.

Instead of doing some troublesome to make my app runs on Ubuntu, I will make my app runs on Windows and do a remote backup/restore via Windows to Ubuntu Server. Is this possible?

We need a reality check here.

Have you used Lazarus to write a GUI app, than are expecting it to run on a server that has no GUI support installed?

If so then you can probably run it by SSHing in and tunneling the X11 UI... provided of course that the server is running X11 rather than Wayland, and subjecto to any other libc issues.

Otherwise you'll need to put it in a (Docker) container, or a VM.

MarkMLl

[incendio]

Basically, my knowledge on Linux is only how to install firebird in Ubuntu.

After you guys mentioned about X, I just realized that my gui app won't run in this server.

I will try to modify my app so it will do remote backup and restore.

Flamerobin database manager on windows can do this, so I hope, Lazarus can do that also.

Thank you for all your help and hints.

[MarkMLl]

I strongly suggest using FPC- not Lazarus/LCL- to write a simple "Hello, World!" and checking that you can run it on that server. If not then you need to take on board the issues that Robert/Don have mentioned about glib etc.

If a trivial program will work, then redo your backup program without a GUI. Later, there's ways that you can run a program either with or without a GUI. However I've not really explored what happens if you try moving a "GUI-optional" program to a system without X11... and Wayland remains a quagmire.

MarkMLl

[cdbc]

Hi
If I may offer a suggestion...
If you're rewriting... Then why not do it in FPC(as Mark suggests) and engage the help of the library from Warfley, namely 'LazTextForms' to realize the TUI, because the db-controls can easily be created/used in code.
That way, it should run on anything 'Firebird'-server will run on...
The lib from Warfley is available here: https://github.com/Warfley/LazTextForms
Regards Benny

[incendio]

Hi guys,

I managed to rewrite my app, it runs on client side on Windows and do backup & restore remotely without problem.

About FPC, never use it, is there a beginner guide how to use it?

[cdbc]

Hi

About FPC, never use it, is there a beginner guide how to use it?

Hehehe... You use it all the time ...behind Lazarus, it compiles all of laz' 'shenanigans' and you can happily use lazarus' code-editor to write console programs. It's actually a brilliant tool for that(too).
Try this:
1) create a new project in laz
2) instead of 'Application', choose 'Program' f.ex.
3) lazarus now creates a managed(by lazarus) program skeleton i.e.: lpr +
    support-files...
4) to see what's happening when you run your code in the debugger, you can
    click on Menu -> View -> Debug Windows -> Console In/Output
5) Have fun & happy coding 
Regards Benny

[TRon]

About FPC, never use it, is there a beginner guide how to use it?

Plausible deniability ? 

[incendio]

Hi

About FPC, never use it, is there a beginner guide how to use it?

Hehehe... You use it all the time ...behind Lazarus, it compiles all of laz' 'shenanigans' and you can happily use lazarus' code-editor to write console programs. It's actually a brilliant tool for that(too).
Try this:
1) create a new project in laz
2) instead of 'Application', choose 'Program' f.ex.
3) lazarus now creates a managed(by lazarus) program skeleton i.e.: lpr +
    support-files...
4) to see what's happening when you run your code in the debugger, you can
    click on Menu -> View -> Debug Windows -> Console In/Output
5) Have fun & happy coding 
Regards Benny

Nice, thanks for the hints, will try it ASAP 👍

[MarkMLl]

Nice, thanks for the hints, will try it ASAP 👍

Detail: main unit is .lpr, other units are .pas files as usual. You'll have a .lpi ("Lazarus Project Information") file containing project paths and options, and .lps ("Lazarus Project State") which is usually temporary stuff you don't need to store in a version control system. You might have a .lpg if you've got the Lazarus Project Groups stuff installed.

That's about it. Debugging etc. pretty much as usual, but the IDE's console handling (View -> Debug Windows -> Console In/Output) is fairly rudimentary and if you have a long-running program you might prefer to start it from a normal shell and then tell the IDE to attach a debugger to it (YMMV on different OSes etc.).

MarkMLl

[Thaddy]

Mark, a server does not even need a shell...Not to bash you.
All it really needs is a network stack.

[MarkMLl]

Thaddy, stop being such an effing idiot. He's starting it from something, particularly during debugging on his development system.

MarkMLl

[Thaddy]

he already concluded that he had the answer...