Tags

Tags are used to mark certain commits. Usually used for versioning. By default, these are not pushed when you run git push. To push a specific tag, run git push <remote> <tag-name>. To push all tags, run git push --tags.

Lightweight tags

These are basically just a pointer to a commit. They store a commit checksum.

Annotated tags

These are full objects in Git. They contain a checksum, tagger name/email, date, message, and can be tagged with GNU Privacy Guard GPG. These are the recommended tags to use most of the time.

Commands

• git tag lists all tags
• git tag -l <filter> lists tags containing <filter>. Useful for looking for subversions.
• git tag <tag-name> creates a lightweight tag.
• git tag -a <tag-name> -m <message> creates an annotated tag <tag-name> with message <message> at the current commit.
• git tag -a <tag-name> <commit-hash> ... creates an annotated tag at the commit whose has is/starts with <commit-hash>
• git show <tag-name> shows the tag message (if annotated) along with the commit it was tagged to.
• git push <remote> <tag-name> pushes a specific tag
• git push --tags pushes all tags
• git tag -d <tag-name> deletes a tag locally
• git push --delete <tag-name> deletes the tag name on the remote.