‘git tag‘ is a feature in the Git version control system that allows you to assign a human-readable label to a specific commit. These labels, or tags, are often used to mark specific release points, such as version numbers (e.g., 'v1.0‘, 'v2.5.3‘).
Here are some key points and common operations related to 'git tag‘:
1.Listing Tags: You can see all the tags in a repository by running:
2.Creating a Tag: There are two main types of tags in git – lightweight and annotated.
- Lightweight Tag: Is just a pointer to a specific commit.
- Annotated Tag: Contains more information such as the tagger name, email, and date, often used for release points. These can be signed and verified with GPG.
3.Pushing Tags to Remote: Tags are not transferred to the remote repository by default when you use git push. To push a specific tag:
To push all tags:
4.Checking Out Tags: To checkout code at a tag:
This will put you in a “detached HEAD” state, meaning you’re not on a specific branch.
5.Deleting a Tag: If you need to remove a tag (e.g., if it was created in error or needs to be renamed):
To delete a tag from the remote repository:
6.Tagging Later Commits: If you forgot to tag a commit and need to tag it later, you can always provide the commit hash while tagging:
Conclusion:
In many projects, tags are used to mark release points, and automation tools can use these tags to build and deploy software based on specific releases. When you see repositories with tags like v1.0, v2.0, etc., these tags typically represent released versions of the software.