Git - Tagging

Tagging

• Tag is not a copy of the repo
• Tag doesn't create a revision
• Tag is just an another name for a revision (apart of SHA1)

git tag tagname # creates  tag from HEAD of the current branch
git tag # shows all tags
git tag tagname -m “message”
git tag tagname 6544ce
git tag -l v1

Lightweight vs Object Tags

Lightweight	Object Tags
git tag v1.1.0 1b2e1d63n git push --tags (optional presentation with cloning) “a branch that never moves” cannot include a comment cannot be signed cryptographically	git tag -a stable-1 1b2e1d63ff If one of -a, -s, or -u <key-id> options is passed Needs to contain a message (can be empty) can tag any object (not only commit object)

Exercise (Tagging)

• Tag the HEAD as v1.0
• Add another line to a file

echo second line >> afile.txt

• Commit changes
• Tag the commit as v1.1
• Add third line and commit

echo third line >> afile

• Show difference (use git diff) between HEAD and the tag v1.0
• List all the tags