I recommend you this extension, Git History by Don Jayamanne
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It does exactly what you need and has these features:
- View the details of a commit, such as author name / email / date, committer name / email / date and comments.
- View a previous copy of the file or compare it against the local
workspace version or a previous version.
- View the changes to the active line in the editor (Git Blame).
- Configure the information displayed in the list
- Use keyboard shortcuts to view history of a file or line
- View the Git log (along with details of a commit, such as author name, email, comments and file changes).
repo: https://github.com/DonJayamanne/gitHistoryVSCode