publishToConfluence removes all linebreaks from code

[tkleiber]

Describe the bug
When I have multiline code snippets, publishToConfluence removes all linebreaks from code, the html file does have have all of it.

To Reproduce
Steps to reproduce the behavior:

1. Create a file with embedded or include code with at least 2 lines, for example

* Update Jenkins Version
** Anmeldung als root
** Stoppen/Update/Starten Jenkins
+
[source,bash]
----
systemctl stop jenkins
zypper update jenkins
systemctl start jenkins
----

3. Run publishToConfluence

Expected behavior
Confluence should show all lines of code separately instead of 1 concatenated line.

Screenshots
generated html file:

exported to confluence:

Configuration

• docToolchain version: 3.0.2
• OS: Linux SLES 15 SP 4
• Browser: Edge, Chrome
• Relevant SDK Versions: Temurin jdk-17.0.6+10

[PacoVK]

Thanks for reporting this. Unfortunately I cannot reproduce it. Are you on Confluence Cloud or server? If Server which version do you run?

[tkleiber]

Confluence Server 8.22.6

[PacoVK]

@tkleiber are you sure, i can only find Jira Software releases that match this version. https://confluence.atlassian.com/display/DOC/Confluence+8.6+Release+Notes

[tkleiber]

Sorry, my fault. This was the JIRA version.
Confluence is 7.19.12.
Will be updated in the next days to 7.19.16

[PacoVK]

@tkleiber did you upgrade your confluence meanwhile, and does the issue still persist?

[tkleiber]

Tested both on Confluence Version 7.19.16 (Server) and 8.5.3 (Data Center).

Issue is reproducible on docToolchain 3.0.2 and 3.1.2.
Issue is not reproducible on docToolchain 2.1.0.

[PacoVK]

Thanks I keep trying to investigate, although it's hard without access to a Server instance. But actually you provided good hints 👍

[stehlih]

We have the same problem on our on-premise Confluence server 8.6.1

We are using doctoolchain 3.1.2.

If subpagesForSections = 1 all source code blocks are published with the right line breaks.

After switch to subpagesForSections = 2 all source code blocks are now OneLiner (all line breaks are removed),

Going back to subpagesForSections = 1 restores the line breaks (and we must delete all the ghost subpages).

[tkleiber]

We need subpagesForSections = 2. Maybe the issue is related to the changes for my issue #402?

[PacoVK]

Awesome thanks the last hint was the missing part and I could now reproduce and locate the error in rewriteCodeBlocks. However the bug seems not to be trivial (after first investigations) and I need some time to come up with a fix...

[PacoVK]

Here we go, thanks to your input @tkleiber and @stehlih i could finally find the issue, reproduce and resolve it.
Will be fixed as soon as #1306 gets live :)