Ralf Thielow <ralf.thie...@gmail.com> writes:

> Thanks for explanation.
> I knew the history of the repo is there, but the history of single files
> (and the ability to look at it)

There is no such thing as "single file history" in Git. Git knows about
the history of the project, and knows which files were there at each
commit. Then, some commands can walk through history following the
history of a file. "git blame" is very good at it, and should work with
subtree merges. "git log --follow" is a quick hack that nobody bothered
to fix up to now (sadly).

You can use workarounds like

  git log -- '*git-gui.sh'

(from the toplevel), to view each commit that touched a file whose name
ends with git-gui.sh. It won't follow actual renames, and may show false
positive if you have several files with the same basename. But it may
help.

-- 
Matthieu Moy
http://www-verimag.imag.fr/~moy/
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