User:SD0001/hide-reverted-edits.js

/**
 * Script to provide a button on page histories
 * which when clicked shows a sanitized version of the history
 * with reverted edits (and their reversions) removed
 *
 */


$.when($.ready).then(function() {

	if (mw.config.get('wgAction') !== 'history') return;

	var hidingReverts = false;
	$('<button>')
		.attr('class', 'reverted-edits-showhide')
		.text('Hide reverted edits')
		.on('click', function(e) {
			e.preventDefault();

			if (!hidingReverts) {
				hideRevertedEdits();
				$('.reverted-edits-showhide').text('Show reverted edits');
			} else {
				$('#pagehistory li').show();
				$('.reverted-edits-showhide').text('Hide reverted edits');
			}
			hidingReverts = !hidingReverts;

		}).insertAfter('.mw-history-compareselectedversions');
	$('.mw-history-compareselectedversions').css('display', 'inline');

});

function hideRevertedEdits() {
	$('#pagehistory li').each(function(idx) {

		if (this.style.display === 'none') {
			return true; // continue if already hidden. This handles reverts of reverts.
		}

		var editcomment = $(this).find('.comment').text();
		var rgx, rev;

		// Plain mediawiki undo with untampered edit summary
		if (editcomment.startsWith('Undid revision ')) {
			var reverted_rev = parseInt(editcomment.slice('Undid revision '.length));
			if (isNaN(reverted_rev)) return true;
			$(this).hide();
			$('[data-mw-revid=' + reverted_rev +']').hide();
			console.log(idx, $(this).find('.mw-changeslist-date').text(), 'undo');

		// Twinkle 'Restore this version' reverts
		} else if (rgx = /^Reverted to revision (\d+) by /.exec(editcomment)) {
			var last_good_revision = rgx[1];
			$(this).hide();
			rev = $(this).next();
			while ( rev.attr('data-mw-revid') !== last_good_revision ) {
				rev.hide();
				rev = rev.next();
				if (rev.length === 0) break; // end of page history in current view
			}
			console.log(idx, $(this).find('.mw-changeslist-date').text(), 'TW restore');

		} else {

			var reverted_user;

			// Twinkle rollback
			if (rgx = /^Reverted (?:good faith|\d+) edits? by (.*?) \(talk\)/.exec(editcomment)) {
				reverted_user = rgx[1];
				console.log(idx, $(this).find('.mw-changeslist-date').text(), 'Twinkle rollback');

			// STiki AGF/normal/vandalism revert
			// also matches old Twinle "identified as vandalism" rollbacks
			} else if (rgx = /^Reverted \d+ (?:good faith )?edits? by (.*?) (?:identified as (?:test\/)?vandalism )?using STiki/.exec(editcomment)) {
				reverted_user = rgx[1];
				console.log(idx, $(this).find('.mw-changeslist-date').text(), 'STiki rollback');

			// normal mediawiki rollback and Huggle rollback
			} else if (rgx = /^Reverted edits by (.*?) \(talk\)/.exec(editcomment)) {
				reverted_user = rgx[1];
				console.log(idx, $(this).find('.mw-changeslist-date').text(), 'mw/huggle rollback');

			// ClueBot
			} else if ( ['ClueBot NG', 'ClueBot'].includes($(this).find('.mw-userlink bdi').text()) ) {
				reverted_user = /^Reverting possible vandalism by (.*?) to version by/.exec(editcomment)[1];
				console.log(idx, $(this).find('.mw-changeslist-date').text(), 'cluebot rollback');

			// XLinkBot
			} else if ( $(this).find('.mw-userlink bdi').text() === 'XLinkBot' ) {
				reverted_user = /BOT--Reverting link additions\(s\) by (.*?) to/.exec(editcomment)[1];
				console.log(idx, $(this).find('.mw-changeslist-date').text(), 'xlinkbot rollback');
			}

			if (reverted_user) {

				// page history shows compressed IPv6 address (with multiple 0's replaced by ::)
				// though rollback edit summaries use the uncompressed form (though with leading 0's removed)
				if (mw.util.isIPv6Address(reverted_user)) {
					reverted_user = reverted_user.replace(/\b(?:0+:){2,}/, ':').toLowerCase();
				}
				$(this).hide();
				rev = $(this).next();
				while ( rev.find('.mw-userlink bdi').text() === reverted_user ) {
					rev.hide();
					rev = rev.next();
					if (rev.length === 0) break; // end of page history (in current view)
				}
			}

		}

	});
}