Batch group git tags by year

Batch group git tags by year.md

This script will:

1. Search for git tag with names starting with a the year 2018 followd by a hypen character (grep ^2018-).

Make sure to change the year in the script with the year you want to match.

2. Then it will create a new tag using the year 2018/´followed by the origina tag name. Ex.: 2018/2018-01-20 Release 2.
3. The it will delete the original tag.

git tag -l |grep ^2018- | while read t; do git tag "2018/"$t; git push --tags ; git tag -d $t; git push origin :refs/tags/$t ; done

If you just want to bulk delete all tags starting on 2018- on Origin, you can use this command:

git tag -l |grep ^2018- | while read t; do git tag -d $t; git push origin :refs/tags/$t ; done

The rest of the team can then clean their local lists of tags, and then pull all online origin tags anew.

1. Clean local tags: git tag -d $(git tag).
2. Pull origin tags anew: git pull --tags.