Git tags are pivotal markers in version control that provide a permanent reference to specific points in a repository's history. They are primarily used to capture snapshots of software releases, enabling developers to easily track and manage critical milestones in project development.
Git tags are immutable references that typically mark specific commit points, such as software version releases. Unlike branches, tags do not change and remain fixed at a particular commit.
gitGraph
commit
commit
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tag: v1.0.0
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tag: v1.1.0
Tag Type |
Description |
Use Case |
Lightweight Tags |
Simple pointers to specific commits |
Quick, temporary marking |
Annotated Tags |
Contain additional metadata |
Official releases, comprehensive documentation |
Basic Tag Creation
To create a lightweight tag in Ubuntu, use the following command:
## Create lightweight tag
git tag v1.0.0
## Create annotated tag with message
git tag -a v1.1.0 -m "First stable release"
Annotated tags provide rich metadata about the release:
- Tagger name
- Email
- Creation date
- Optional message describing the release
Developers use git tags in various scenarios:
- Marking software versions
- Creating release checkpoints
- Facilitating rollbacks
- Documenting significant project milestones
By leveraging git tags effectively, teams can enhance repository management and streamline software release processes.