git tag and git describe a specified path/commits/tags

一、git tag and describe

1. Create a tag with patterned name

git tag "tagname_v1.02"

(one tag is pointed to a specified commit)

 

2. get tag describe to use in software version name

git describe --tags --long --dirty=* --match "tagname*"

> tagname_v1.02-0-g59584af

3. push tag name to remote repo

git push origin <branchname> --tags

 

二、show log with tags

1. show git log with tags:
git log -tags
show tag with no ancestor and within one line:
git log --no-walk --tags --pretty="%h %d %s" --decorate=full

三、tag a specified commit

# Set the HEAD to the old commit that we want to tag
git checkout 9fceb02

# temporarily set the date to the date of the HEAD commit, and add the tag
GIT_COMMITTER_DATE="$(git show --format=%aD | head -1)" \
git tag -a v1.0 -m"v1.0"
注：
这个-m添加的信心只出现在git tag -l -n2里面
没有出现在git log/git log --tags里面

# push to origin
git push origin --tags

# set HEAD back to whatever you want it to be
git checkout master

参考资料：
https://stackoverflow.com/questions/4404172/how-to-tag-an-older-commit-in-git

https://stackoverflow.com/questions/4211604/show-all-tags-in-git-log