How to get diff between branch start and branch HEAD in Git?

Question

git

Dear experts!
Tell me, is it possible to get a diff between the start of the "my_branch" branch (since it was inherited from another branch) and the current version of the "my_branch" branch?
It is desirable that the syntax is tied to "my_branch" only.
Thank you.

Answer 1

Tie only to "my_branch" will not work, you can only see the difference relative to another branch.
git log master..my_branch::: All commits reachable from my_branch that are not reachable from master
git log master...my_branch::: Shows the difference of commits between branches (commits that are on one branch but not on the other)
--left-right ::: shows which side of the range each is on commit
git diff master..my_branch::: Will show you the differences from the current state of the master branch.
git diff master...my_branch::: Shows you only the work in your current topic branch that has been contributed since it branched from the master branch.