Tag Operation - Git

Tag operation allows giving meaningful names to a specific version in the repository. Suppose Tom and Jerry decide to tag their project code so that they can later access it easily.

1. Create Tags

Let us tag the current HEAD by using the git tag command. Tom provides a tag name with -a option and provides a tag message with –m option.

 

tom@CentOS project]$ pwd

/home/tom/top_repo/project

 

[tom@CentOS project]$ git tag -a 'Release_1_0' -m 'Tagged basic string operation code' HEAD

 

If you want to tag a particular commit, then use the appropriate COMMIT ID instead of the HEAD pointer. Tom uses the following command to push the tag into the remote repository.

 

[tom@CentOS project]$ git push origin tag Release_1_0

 

The above command will produce the following result:

 

 

Counting objects: 1, done.

Writing objects: 100% (1/1), 183 bytes, done.

Total 1 (delta 0), reused 0 (delta 0)

To gituser@git.server.com:project.git

* [new tag]

Release_1_0 ?> Release_1_0

 

2. View Tags

Tom created tags. Now, Jerry can view all the available tags by using the Git tag command with –l option.

 

[jerry@CentOS src]$ pwd

/home/jerry/jerry_repo/project/src

 

[jerry@CentOS src]$ git pull

remote: Counting objects: 1, done.

remote: Total 1 (delta 0), reused 0 (delta 0)

Unpacking objects: 100% (1/1), done.

From git.server.com:project

* [new tag]

Release_1_0 ?> Release_1_0

Current branch master is up to date.

 

[jerry@CentOS src]$ git tag -l

Release_1_0

 

Jerry uses the Git show command followed by its tag name to view more details about tag.

 

[jerry@CentOS src]$ git show Release_1_0

 

The above command will produce the following result:

 

tag Release_1_0

Tagger: Tom Cat <tom@tutorialspoint.com>

Date: Wed Sep 11 13:45:54 2013 +0530

 

Tagged basic string operation code

 

 

commit 577647211ed44fe2ae479427a0668a4f12ed71a1

Author: Tom Cat <tom@tutorialspoint.com>

Date: Wed Sep 11 10:21:20 2013 +0530

 

Removed executable binary

 

diff --git a/src/string_operations b/src/string_operations

deleted file mode 100755

index 654004b..0000000

Binary files a/src/string_operations and /dev/null differ

 

3. Delete Tags

Tom uses the following command to delete tags from the local as well as the remote repository.

 

[tom@CentOS project]$ git tag

Release_1_0

 

[tom@CentOS project]$ git tag -d Release_1_0

Deleted tag 'Release_1_0' (was 0f81ff4)

# Remove tag from remote repository.

 

[tom@CentOS project]$ git push origin :Release_1_0

To gituser@git.server.com:project.git

- [deleted]

Release_1_0