The manual of git-diff tell me that :
git-diff [--options] <commit> [--] [<path>...]
This form is to view the changes you have in your working tree
relative to the named <commit>. You can use HEAD to compare it with
the latest commit, or a branch name to compare with the tip of a
different branch.
So the following seem strange :
$ echo foo > bar
$ git commit -m "committing bar" -a
Created commit 074893b: committing bar
1 files changed, 1 insertions(+), 0 deletions(-)
create mode 100644 bar
$ git rm --cached bar
rm 'bar'
$ git diff HEAD --
diff --git a/bar b/bar
deleted file mode 100644
index 257cc56..0000000
--- a/bar
+++ /dev/null
@@ -1 +0,0 @@
-foo
I excepted the diff to be empty, as HEAD and the working directory are
synchronized, I've only modified the cache.
--
Rémi Vanicat
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