Mechanism for switching templates
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	Tobi_WMDE_SW
	Jan 31 2017, 1:40 PM

Description

Implement a mechanism that allows the user to switch client templates with Commons templates.
Note: in the tool CommonsHelper by Magnus there is already some functionality that does template magic. We should look into this and find out what it does.
Note 2: there are several templates that would prevent the transfer of a file

Details

	Project	Branch	Lines +/-	Subject
	mediawiki/extensions/FileImporter	master	+125 -16	Outline importing & template switching

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Status	Assigned	Task
Resolved	None	T140462 Correctly move files from Wikipedia to Commons (2013)
Resolved	thiemowmde	T146666 Build a commons extension that moves files to Commons
Resolved	thiemowmde	T156797 Mechanism for switching templates
Resolved	thiemowmde	T171605 Analyze template substitution mechanism of CommonsHelper and ForTheCommonGood tools

Event Timeline

Tobi_WMDE_SW created this task.Jan 31 2017, 1:40 PM

Tobi_WMDE_SW moved this task from Incoming to Move files to Commons on the TCB-Team (now WMDE-TechWish) board.Feb 6 2017, 10:51 AM

I worked much of this out when writing For the Common Good, at least for enwiki.

The local wiki data files that describe the transformations ("replacements") and templates that prevent transfer ("potential problems") may be slightly out of date, but then CommonsHelper's logic probably is too. It would be great if you could combine the best of both into this new extension.
The C# code for the extension contains various template-switching logic, including transforming local {{Information}} templates into the Commons equivalent. See https://github.com/atlight/ForTheCommonGood/blob/master/ForTheCommonGood/frmMain.cs#L393-L641 I know the code quality is quite poor, but the logic has been well-received by users, and re-using this logic could help avoiding reinventing the wheel.

[Note added 2017-08-18: see T171605#3485931]