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So "revision" refers to the id you can use as a parameter to reference an object in git (usually a commit).
When working with Git, only one branch can be checked out at a time - and this is what's called the "HEAD" branch. Often, this is also referred to as the "active" or "current" branch. Git makes note of this current branch in a file located inside the Git repository, in .
Don't worry, Git has got you covered! By running git log -p , you'll get the same list as before, however each commit will have a list of the files that have been added/modified/removed, as well as the actual changes themselves.
What do you mean by "version number"? It is quite common to tag a commit with a version number and then use
$ git describe --tags
to identify the current HEAD w.r.t. any tags. If you mean you want to know the hash of the current HEAD, you probably want:
$ git rev-parse HEAD
or for the short revision hash:
$ git rev-parse --short HEAD
It is often sufficient to do:
$ cat .git/refs/heads/${branch-main}
but this is not reliable as the ref may be packed.
There are many ways git log -1 is the easiest and most common, I think
This gives you just the revision.
git rev-parse HEAD
This gives you the first few digits of the hash and they are unique enough to use as say a version number.
git rev-parse --short HEAD
below will work with any previously pushed revision, not only HEAD
for abbreviated revision hash:
git log -1 --pretty=format:%h
for long revision hash:
git log -1 --pretty=format:%H
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