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Maniphest T44566

Diffs between SVG uploads should display differences in code
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Description

When uploading new versions of raster graphics, we get text like:
"Foo uploaded a new version of File:Bar.jpg:..."
followed by whatever text a user chooses to insert as an edit summary. In the case of two separate JPEGs, that's probably the best you can do, but with vector graphics we could actually display differences *in* the SVG itself. It seems like this could be a very doable and useful function for spotting what the actual differences are between revisions of an SVG file.

Version: 1.21.x
Severity: enhancement

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Reference
bz42566

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Event Timeline

• bzimport raised the priority of this task from to Low.Nov 22 2014, 1:07 AM
• bzimport added a project: MediaWiki-File-management.
• bzimport set Reference to bz42566.
• bzimport added a subscriber: Unknown Object (MLST).
Koavf created this task.Nov 30 2012, 8:17 AM
Rillke added a comment.Sep 2 2013, 10:51 AM

This should be supported for all human-readable file formats (i.e. files that are not saved in a binary format).

Example: https://commons.wikimedia.org/w/index.php?title=File:De_kaart_van_Yemo.png&withJS=MediaWiki:FileContentsByBot.js

Diff: https://commons.wikimedia.org/w/index.php?title=File%3ADe_kaart_van_Yemo.png&diff=103195263&oldid=79481985

Rillke added a comment.Sep 2 2013, 10:52 AM

/me pasted into the wrong bug

Thryduulf added a comment.May 25 2014, 6:24 PM

The need for this functionality has been identified again at the Oxford Wikimeet. Is there any liklihood of someone taking it forward any time soon?

Rillke added a comment.May 25 2014, 8:13 PM

(In reply to Chris McKenna from comment #3)
I guess you could write a gadget or tool doing this; but I doubt a change in core will happen soon as too much would be involved. I've just written a user script on Commons that allows me in-page-editing of the SVG source code. https://commons.wikimedia.org/wiki/User:Rillke/SVGedit.js

• Gilles added a project: Multimedia.Nov 24 2014, 3:29 PM
Jdforrester-WMF moved this task from Untriaged to Backlog on the Multimedia board.Sep 4 2015, 6:13 PM
Restricted Application added subscribers: Steinsplitter, Matanya, Aklapper. · View Herald TranscriptSep 4 2015, 6:13 PM
Ricordisamoa subscribed.Sep 13 2015, 6:58 AM

I uploaded https://gerrit.wikimedia.org/r/179402 exactly for the purpose of diffing between files.

Ricordisamoa awarded a token.Sep 13 2015, 6:58 AM
TheDJ added a subtask: T154176: Provide source code diff view for Vector Graphics files (SVG) for file overwrites.Nov 20 2018, 10:01 AM
• Phabricator_maintenance removed a parent task: T10901: [DO NOT USE] SVG rasterisation and management on Wikimedia sites (tracking).Feb 22 2019, 3:15 PM
Aklapper changed the subtype of this task from "Task" to "Feature Request".Feb 4 2022, 11:14 AM
Aklapper removed a subscriber: • wikibugs-l-list.
Maintenance_bot added a project: Commons.Feb 4 2022, 11:46 AM
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