...
...
As part of the migration, some of the source for community plugins previously hosted in Oracle's HG repository have been migrated to git where possible, while others were not fully migrated due to licensing or limited support for given plugin. Some earlier iterations of these are available at the following locations
Jaroslav Tulach is hosting a clone of the Mercurial repositories at http://source.apidesign.org/hg/netbeans/
Emilian Bold’s conversion of Mercurial to git is available at https://github.com/emilianbold/netbeans-releases
For publication details for new plug-ins, see How to get plugin on Plugin Portal Update Center
...