[PATCH 00/12] Fix various overly aggressive protections in 2.45.1 and friends

As people have seen, the latest "security fix" release turned out to be a mixed bag of good vulnerability fixes with a bit over-eager "layered defence" that broke real uses cases like git-lfs. Let's quickly get them in working order back first, with the vision that we will then rebuild layered defence more carefully in the open on top as necessary.

What we have here are the first "revert" part.

These patches are designed to apply to 2.39.4; the series may have to grow as we discover more things to revert, but for now here are the patches to

 - revert the over-eager "refusal to work" went into 2.39.4

 - adjust 2.39.4 codebase to cleanly build and test (at CI and
   locally) by backported fixes

It would have been better if we did not have to have the latter class, but such is life.

I'll figure out a way to convey conflict resolutions as this topic gets merged up to newer maintenance tracks on the list so that people can assist with ensuring correctness of the result by reviewing, and follow up. ("git show --remerge-diff" might turn out to be such a way, but I do not know yet).

Jeff King (5):
  send-email: drop FakeTerm hack
  send-email: avoid creating more than one Term::ReadLine object
  ci: drop mention of BREW_INSTALL_PACKAGES variable
  ci: avoid bare "gcc" for osx-gcc job
  ci: stop installing "gcc-13" for osx-gcc

Johannes Schindelin (6):
  hook: plug a new memory leak
  init: use the correct path of the templates directory again
  Revert "core.hooksPath: add some protection while cloning"
  tests: verify that `clone -c core.hooksPath=/dev/null` works again
  clone: drop the protections where hooks aren't run
  Revert "Add a helper function to compare file contents"

Junio C Hamano (1):
  Revert "fetch/clone: detect dubious ownership of local repositories"

 .github/workflows/main.yml    |  3 +-
 Makefile                      |  2 +-
 builtin/clone.c               | 12 +-------
 cache.h                       | 14 ---------
 ci/install-dependencies.sh    |  2 --
 config.c                      | 13 +-------
 copy.c                        | 58 -----------------------------------
 git-send-email.perl           | 32 +++++++------------
 hook.c                        | 32 -------------------
 path.c                        |  2 --
 t/helper/test-path-utils.c    | 10 ------
 t/t0060-path-utils.sh         | 41 -------------------------
 t/t0411-clone-from-partial.sh |  6 ++--
 t/t1350-config-hooks-path.sh  |  7 +++++
 t/t1800-hook.sh               | 15 ---------
 t/t5601-clone.sh              | 51 ------------------------------
 t/t9001-send-email.sh         |  5 +--
 17 files changed, 28 insertions(+), 277 deletions(-)