Read on TwitterGit Tag is a powerful way of organising your git commits and history by setting markers in your git history.
In this thread, I& #39;m going to cover everything you need to know about it and how to use it.
Let& #39;s get started.
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By creating a tag in your git database, you& #39;re referencing a certain commit.
An example of using tags is marking specific releases of a codebase. E.G. V1.0
For example, when I& #39;ve redesigned my website, I tag the different versions first commit. 2/11
To create a new tag, you use the syntax:
git tag <TAG NAME>
So an example would be:
git tag V1.0
This would create a new tag that is called V1.0 and references the current commit reference that HEAD is pointing to. 3/11
You get to 2 different types of tags:
Generally, it is prefered to use Annotated tags. 4/11
To list all of the tags in a current git database, use the command:
git tag
This will return all of the tags within the database.
You can also filter them using wildcards:
git tag -l <WILDCARD>
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By default, the tag will point to the current commit ref that HEAD is pointing to.
You can change this by passing a specific commit ref to the command:
git tag -a v1.2 <COMMIT REF>
This will create a new annotated tag with the passed ref.
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If you try to create a duplicate tag name, git will error:
fatal: tag <TAG NAME> already exists
This also true if you point the tag at an old commit ref.
If you have to update an existing tag, use -f.
git tag -a -f v1.4 <COMMIT REF>
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Like branches, git will not push tags, if you want to do this you have to explicitly pass it to git push:
git push origin <TAG NAME>
If you want to push multiple tags, you can use the --tags flag.
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You can check out a tag using:
git checkout <TAG NAME>
You can easily delete a tag by using the -d flag like:
git tag -d <TAG NAME>
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