Summary:
Now that `hg debugedenimporthelper` has been released for
a little while, we can remove the bundled implementation of it from
the eden release.
However, we cannot remove the script itself as there are users
with long running edenfs instances that pre-date the knowledge
of `hg debugedenimporthelper`. So, as a compatibility shim,
this diff redirects `hg_import_helper.py` and has it exec the
command in mercurial.
For extra fun, our own integration tests rely on being able
to import `hg_import_helper.py` and override portions of it,
so we cannot remove its implementation from the codebase just
yet either.
So this diff:
* Introduces `proxy_import_helper.py` which execs `hg debugedenimporthelper`
* Installs `proxy_import_helper.py` as `hg_import_helper.py` in the rpm
* Leave `hg_import_helper.py` as-is in the tree for now.
Reviewed By: simpkins
Differential Revision: D13970332
fbshipit-source-id: 717dc86a880fbbbe4a7e801a8b748abd053c7f7c
ab03aa78c2