[Bug 1999511] Re: DEP8 failure: cannot add submodule using file transport

[Andreas Hasenack]

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Title:
  DEP8 failure: cannot add submodule using file transport

Status in git package in Ubuntu:
  Invalid

Bug description:
  The git security update for CVE 2022-39253 changed a config setting to
  disallow the file transport submodule by default. This is resulting in
  DEP8 tests failing all over the place:

  $ git submodule add ../repo3 sub3
  Cloning into '/tmp/test-pyus71xi-check-manifest/repo2/sub3'...
  fatal: transport 'file' not allowed
  fatal: clone of '/tmp/test-pyus71xi-check-manifest/repo3' into submodule path '/tmp/test-pyus71xi-check-manifest/repo2/sub3' failed

  This probably wasn't seen at the time of the security update probably
  because DEP8 tests are not run publicly then due to embargo.

  It's also affecting the devel release, where git is migrating from
  2.37 to 2.38 (2.38 has the security fix).

  The DEP8 fix might have to be backported to stable releases as well,
  or else SRUing git in the future (for non-security updates) will be a
  pain.

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