[6.0] copy api language files

[heelc29]

Pull Request for Issue #41944 .

Summary of Changes

Adds ability to place language files under api/language during installation of a component

<?xml version="1.0" encoding="UTF-8"?>
<extension type="component" method="upgrade">
	[...]
	<api>
		<files folder="api">
			<folder>src</folder>
		</files>
		<languages folder="api">
			<language tag="en-GB">language/en-GB/com_example.ini</language>
		</languages>
	</api>
</extension>

Use example component:
com_mycomponent.zip

Testing Instructions

Add languages node under API in any component then test install/uninstall

Actual result BEFORE applying this Pull Request

language file api\language\en-GB\com_mycomponent.ini is not copied

Expected result AFTER applying this Pull Request

language file api\language\en-GB\com_mycomponent.ini is copied and deleted during uninstall

Link to documentations

Please select:

• Documentation link for docs.joomla.org: There is nothing special here https://docs.joomla.org/Manifest_files

• No documentation changes for docs.joomla.org needed

• Pull Request link for manual.joomla.org:

• No documentation changes for manual.joomla.org needed

[exlemor]

Hi @heelc29, can you provide a test plugin/module/component that includes whatever you want us to test (I guess the language .ini file in place and code) so that we can test? (ready for testing so that we don't make mistakes in testing for you) It would make it a lot easier. Thanks.

[HLeithner]

@MacJoom I wouldn't merge this in to 4.4, but your choice

[superd0ll]

I have tested this item 🔴 unsuccessfully on 4474c5f

Language file is copied before and after - Joomla 5.1.3 - localhost

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[brianteeman]

@superd0ll how did you test this?

[HLeithner]

This pull request has been automatically rebased to 5.3-dev.

[superd0ll]

It was such a long time ago, I am sorry but I don't remember.. I need to check this out thoroughly. I will have time to do so after the 21st of November..

[heelc29]

Hi @heelc29, can you provide a test plugin/module/component that includes whatever you want us to test

@exlemor Added example component in PR description.

[HLeithner]

This pull request has been automatically rebased to 6.0-dev.

[exlemor]

I have tested this item 🔴 unsuccessfully on 2cebb19

I have tested this unsuccessfully...

This is what I did:
With the PR NOT applied, I installed the test com_testi-1.0.1.zip component and it installed successfully. [the file com_mycomponent.ini was NOT in api\language\en-GB]
With the PR installed, I installed the same com_testi-1.0.1.zip and got this error:

Warning
JInstaller: :Install: Can't find Joomla XML setup file.
JInstaller: :Install: Can't find XML setup file.

An error has occurred.
0 Joomla\CMS\Installer\Installer::parseLanguages(): Argument #1 ($element) must be of type SimpleXMLElement, null given, called in /home/lights/public_html/_j600/libraries/src/Installer/Adapter/ComponentAdapter.php on line 611

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[brianteeman]

I have tested this item ✅ successfully on 0fb2a4a

Before PR api language files were not copied to the api/languages folder
After PR they were copied

Also confirmed that with this PR the language file is removed from the api/languages folder

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