Xfconf Tutorial

[eiskasten]

This PR adds a tutorial for Xfconf as mentioned in issue #280.

Basics

• [ ] Short descriptions of your changes are in the release notes (added as entry in doc/news/_preparation_next_release.md which contains _(my name)_) Please always add them to the release notes.
• [ ] Details of what you changed are in commit messages (first line should have module: short statement syntax)
• [ ] References to issues, e.g. close #X, are in the commit messages.
• [ ] The buildservers are happy. If not, fix in this order:
  • add a line in doc/news/_preparation_next_release.md
  • reformat the code with scripts/dev/reformat-all
  • make all unit tests pass
  • fix all memleaks
  • fix the CI itself (or rebase if already fixed)
• [ ] The PR is rebased with current master.

Checklist

• [ ] I added unit tests for my code
• [ ] I fully described what my PR does in the documentation (not in the PR description)
• [ ] I fixed all affected documentation (see Documentation Guidelines)
• [ ] I fixed all affected decisions (see Decision Process)
• [ ] I added code comments, logging, and assertions as appropriate (see Coding Guidelines)
• [ ] I updated all meta data (e.g. README.md of plugins and METADATA.ini)
• [ ] I mentioned every code not directly written by me in reuse syntax

Review

• [ ] Documentation is introductory, concise, good to read and describes everything what the PR does
• [ ] Examples are well chosen and understandable
• [ ] Code is conforming to our Coding Guidelines
• [ ] APIs are conforming to our Design Guidelines
• [ ] Code is consistent to our Design Decisions

Labels

• [ ] Add the "work in progress" label if you do not want the PR to be reviewed yet.
• [ ] Add the "ready to merge" label if everything is done and no further pushes are planned by you.

[eiskasten]

jenkins build libelektra please

[eiskasten]

jenkins build libelektra please

[markus2330]

Btw. I think also restart of xfconfd is needed so that some parts of the tutorial actually can work? (Logout/Login does not restart xfconfd for me, and without restart it cannot pick up a different library).

[eiskasten]

Btw. I think also restart of xfconfd is needed so that some parts of the tutorial actually can work? (Logout/Login does not restart xfconfd for me, and without restart it cannot pick up a different library).

I do not think that this is necessary. Xfconfd is only used by the original libxfconf-0 for things such as caching or property monitoring. Since the Xfconf implementation of Elektra does not use it at all, it should be no problem. However, I do not know if some applications interact directly with it (which they definitely should not do at all). For that it should be enough to just kill it but I never run into problems with that.

[eiskasten]

Tutorial is great and easy to follow but doesn't provide enough material to be actually able to reconfigure xfce4 and unfortunately did not work on Debian bullseye.

Thank you for the review. I provided corrections for the requested things.

[eiskasten]

I have tested and fixed it for debian now and it works with the buster image within the repository. However, please make sure to use #4960 since this PR contains fixes which are mandatory to debian.

[eiskasten]

jenkins build libelektra please

[markus2330]

jenkins build libelektra please