Re: RFC: git cat-file --follow-symlinks?

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On Wed, 2015-04-29 at 21:16 -0400, Jeff King wrote:
> On Wed, Apr 29, 2015 at 06:06:23PM -0700, David Turner wrote:
>   3. Ditto for out-of-tree. Note that this would be the _raw_ symlink
>      contents, not any kind of simplification (so if you asked for
>      "foo/bar/baz" and it was "../../../../out", you would the full path
>      with all those dots, not a simplified "../out", which I think is
>      what you were trying to show in earlier examples).

Unfortunately, we need the simplified version, because we otherwise
don't know what the ..s are relative to in the case of a link to a link:

  echo content >dest ;# actual blob
  mkdir -p foo/bar
  ln -s foo/bar/baz fleem             # in-tree link-to-link 
  ln -s ../../../external foo/bar/baz # out-of-tree link

If echo HEAD^{resolve}:fleem were to return ../../../external (after
following the first symlink to the second), we would have lost
information.

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