Show text changes when moving text chunks (#2)
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	Lea_WMDE
	Jul 7 2016, 1:09 PM

Description

Survey: 2015

Original wish (German): https://de.wikipedia.org/wiki/Wikipedia:Umfragen/Technische_W%C3%BCnsche_2015/Artikel#.C3.84nderungen_im_Text_bei_Abschnittsverschiebung_anzeigen
Update sites on-wiki:

Research:
T140376: Research on moving sections in Wikipedia article edits

Related Objects
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Status	Assigned	Task
Resolved	• DannyH	T121469 Improve diff compare screen
Resolved	thiemowmde	T139603 Show text changes when moving text chunks (#2)
Resolved	Lea_WMDE	T138922 Investigate what we can do to solve Wish #2 - Show text changes when moving text blocks
Resolved	• jkroll	T142720 Create testing VM and install software
Declined	None	T143422 Indicate when text chunks have been moved, but not changed otherwise
Resolved	None	T146781 Show changes in moved text chunks (C++)
Resolved	WMDE-Fisch	T149674 Upload wikidiff changes to Gerrit
Resolved	Tobi_WMDE_SW	T150740 Make CI pass for wikidiff2 changes
Resolved	• jkroll	T160075 Benchmark "Show changes in moved text chunks" patch, find size threshold
Resolved	Tobi_WMDE_SW	T166571 Introduce a configuration variable for the bailout threshold for moved-paragraph-detection in wikidiff2
Resolved	• jkroll	T160077 UI changes for showing changes in moved text chunks
Resolved	Paladox	T168410 Migrate php-compile-hhvm test to jessie
Resolved	Addshore	T177891 Update and use php-wikidiff2 1.5.1 & MovedParagraphDetectionCutoff in production
Resolved	Addshore	T180476 Enable the showing of changes in moved paragraphs on de-wiki
Resolved	Tobi_WMDE_SW	T179277 Test moved paragraph behavior on test cluster
Resolved	WMDE-Fisch	T166882 Add tooltip to elements indicating a moved paragraph
Resolved	• jkroll	T180602 Add placeholder for title tags to the moved indicators
Resolved	Legoktm	T180043 Invalidate the diff cache if the engine producing the diff changes
Resolved	• jkroll	T181404 Make change detection threshold configurable from php
Resolved	None	T180259 Investigate possible regression due to wikidiff2 1.5 change detection
Resolved	• jkroll	T181494 Investigate what the ideal change detection threshold would be
Resolved	Andrew-WMDE	T183131 Create a (semi) automated testing environment
Resolved	• jkroll	T183352 Investigate if character runs are better than character counts for threshold
Resolved	Lea_WMDE	T191310 Show changes in moved paragraphs for mobile
Resolved	None	T191311 Set up test server for testing the mobile view of "show changes in moved paragraphs"
Resolved	• jkroll	T191313 Create a first patch for "show changes in moved paragraphs for mobile"
Resolved	WMDE-Fisch	T193638 Create minimal CSS to make mobile changes testable
Resolved	• jkroll	T193640 Make sure that desktop version of the diffs did not change after the mobile version was introduced
Resolved	• jkroll	T194146 Make sure show changes in moved paragraphs for mobile really improves things
Resolved	WMDE-Fisch	T194271 Change config to disable new mobile behavior on all wikis except beta
Resolved	• jkroll	T195371 Create a test server for show changes in moved paragraphs on mobile
Resolved	ovasileva	T197491 Implement new design for moved paragraphs in diffs on mobile
Resolved	• jkroll	T197729 wikidiff2 creating ins and del elements with single empty character element
Resolved	WMDE-Fisch	T199800 Enabling moved paragraphs everywhere and for mobile diffs
Resolved	MoritzMuehlenhoff	T199801 Update wikidiff2 library on the WMF production cluster to v1.7.2
Resolved	WMDE-Fisch	T194272 Clean up wikidiff2 config variable handling
Resolved	MoritzMuehlenhoff	T203069 Deploy wikidiff2 v1.8.1 with changed signature
Resolved	Lea_WMDE	T197664 Create test setup for Japanese, Chinese and Thai
Duplicate	None	T146784 Investigate if showing text changes when moving text chunks is possible in php code base
Duplicate	None	T146882 Benchmark the performance of Wikidiff2 with changes for handling moved text chunks
Resolved	Jan_Dittrich	T140376 Research on moving sections in Wikipedia article edits
Resolved	thiemowmde	T135454 Visualise moved lines in diff view
Duplicate	None	T180122 Show text changes in moved paragraphs on mobile
Resolved	Jdlrobson	T180123 Define changes within wikidiff2 for mobile
Resolved	WMDE-Fisch	T187801 Set up test server that fakes backend moved paragraph changes
Resolved	MoritzMuehlenhoff	T190717 Update wikidiff2 library on the WMF production cluster
Resolved	WMDE-Fisch	T195375 Show changes in moved paragraphs on most wikis
Resolved	• jkroll	T215293 Moved 100% match was not found (Michgrig bug)

Event Timeline

Lea_WMDE created this task.Jul 7 2016, 1:09 PM

Restricted Application added subscribers: Zppix, Aklapper. · View Herald TranscriptJul 7 2016, 1:09 PM

Lea_WMDE added a subtask: T138922: Investigate what we can do to solve Wish #2 - Show text changes when moving text blocks.Jul 7 2016, 1:18 PM

Lea_WMDE moved this task from Backlog to In Research Phase on the German-Community-Wishlist-Main-Wishes board.Jul 7 2016, 1:26 PM

Lea_WMDE created subtask T140340: Connect moved paragraphs by arrows.Jul 14 2016, 8:52 AM

Lea_WMDE moved this task from Incoming to Community Wishlist on the TCB-Team (now WMDE-TechWish) board.Jul 14 2016, 11:25 AM

Lea_WMDE updated the task description. (Show Details)Jul 15 2016, 9:19 AM

Lea_WMDE added a subtask: T142720: Create testing VM and install software.Aug 15 2016, 3:50 PM

Lea_WMDE closed subtask T138922: Investigate what we can do to solve Wish #2 - Show text changes when moving text blocks as Resolved.Aug 17 2016, 10:05 AM

Lea_WMDE added a project: MediaWiki-Page-diffs.Aug 17 2016, 3:35 PM

Lea_WMDE edited projects, added TCB-Team (now WMDE-TechWish) (Oct2016-March2017); removed TCB-Team (now WMDE-TechWish).Aug 18 2016, 10:46 AM

Lea_WMDE moved this task from Backlog to Prio1 on the TCB-Team (now WMDE-TechWish) (Oct2016-March2017) board.

Lea_WMDE moved this task from In Research Phase to Feature Development on the German-Community-Wishlist-Main-Wishes board.Aug 19 2016, 2:55 PM

Lea_WMDE mentioned this in T143422: Indicate when text chunks have been moved, but not changed otherwise.Aug 19 2016, 3:09 PM

Lea_WMDE created subtask T143422: Indicate when text chunks have been moved, but not changed otherwise.

Lea_WMDE added a parent task: T121469: Improve diff compare screen.Aug 23 2016, 12:45 PM

• jkroll closed subtask T142720: Create testing VM and install software as Resolved.Sep 1 2016, 2:19 PM

MGChecker subscribed.Sep 1 2016, 4:00 PM

Restricted Application added a subscriber: Luke081515. · View Herald TranscriptSep 1 2016, 4:00 PM

Lea_WMDE moved this task from Feature Development to Backlog on the German-Community-Wishlist-Main-Wishes board.Sep 23 2016, 3:21 PM

Lea_WMDE moved this task from Backlog to Feature Development on the German-Community-Wishlist-Main-Wishes board.

Lea_WMDE mentioned this in T146781: Show changes in moved text chunks (C++).Sep 27 2016, 4:30 PM

Lea_WMDE created subtask T146781: Show changes in moved text chunks (C++).

Lea_WMDE changed the status of subtask T143422: Indicate when text chunks have been moved, but not changed otherwise from Open to Stalled.

Lea_WMDE mentioned this in T146784: Investigate if showing text changes when moving text chunks is possible in php code base.Sep 27 2016, 4:38 PM

Lea_WMDE created subtask T146784: Investigate if showing text changes when moving text chunks is possible in php code base.

Lea_WMDE changed the status of subtask T140340: Connect moved paragraphs by arrows from Open to Stalled.Sep 28 2016, 9:31 AM

Lea_WMDE mentioned this in T146882: Benchmark the performance of Wikidiff2 with changes for handling moved text chunks.Sep 28 2016, 9:45 AM

Lea_WMDE created subtask T146882: Benchmark the performance of Wikidiff2 with changes for handling moved text chunks.

• MichaelSchoenitzer_WMDE subscribed.Nov 16 2016, 10:03 AM

Some examples on a demo system (all kudos going to @jkroll):

Adding text in a moved paragraph

https://mwdiffstuff.wmflabs.org/core/index.php?title=Difftest1&diff=10&oldid=9

Removing text in a moved paragraph

https://mwdiffstuff.wmflabs.org/core/index.php?title=Difftest1&diff=11&oldid=10

Moving a paragraph with changes and adding another in the same edit detects correctly which paragraph was moved

https://mwdiffstuff.wmflabs.org/core/index.php?title=Difftest1&diff=12&oldid=11

Moving / copying a paragraph to several places detects the move and shows the changes correctly

https://mwdiffstuff.wmflabs.org/core/index.php?title=Difftest1&diff=13&oldid=12

There are cases where the current code cannot display the changes
correctly. For instance, moving/copying a paragraph to several different
places and *removing* different text from the pasted paragraphs:
https://mwdiffstuff.wmflabs.org/core/index.php?title=Difftest1&diff=14&oldid=13

Tobi_WMDE_SW added a subscriber: • jkroll.Feb 6 2017, 12:09 PM

For the record, the test system mentioned above is using https://gerrit.wikimedia.org/r/#/c/319866/

daniel added a subscriber: tstarling.Feb 6 2017, 12:26 PM

waldyrious subscribed.Feb 19 2017, 12:10 PM

Lea_WMDE added a subtask: T140376: Research on moving sections in Wikipedia article edits.Apr 5 2017, 2:52 PM

Lea_WMDE added a subtask: T135454: Visualise moved lines in diff view.Apr 5 2017, 3:21 PM

Lea_WMDE mentioned this in T162703: Check effort for php version of "Show changes in moved paragraphs".Apr 12 2017, 2:41 PM

Lea_WMDE closed subtask T143422: Indicate when text chunks have been moved, but not changed otherwise as Declined.Jun 2 2017, 1:11 PM

Lea_WMDE removed a subtask: T140340: Connect moved paragraphs by arrows.

daniel mentioned this in T166571: Introduce a configuration variable for the bailout threshold for moved-paragraph-detection in wikidiff2.Jun 2 2017, 2:18 PM

Lea_WMDE mentioned this in T169325: Consider clarifying the visual language for Visual Diffs.Jul 11 2017, 4:52 PM

ovasileva added a subscriber: • Nirzar.Jul 26 2017, 1:05 PM