[PATCH v3 0/6] Split .git/config in multiple worktree setup

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I've changed my mind. So v3 is not a polished v2. It's quite different.
And I hope it's good different.

In v2, .git/config contains both shared part and the per-worktree part
(for main worktree). It's ugly, slow and hard to work with. v3 adds a
completly new config file for sharing. ".git/config" will not be shared
any more.

For any worktree, the new file .git/common/config is read first, then
either .git/config or .git/worktrees/xxx/config is read after. There's
no special per-worktree var list any more. Which is great. You want to
add per-worktree config vars, use "git config --local". You want to
add per-repo config vars, use (new) "git config --repo". You put a
variable in a wrong file, you're punished for it (and it's the same
today, say if you put core.worktree to /etc/gitconfig).

The only ugly part I see is how to deal with released git binaries,
how to make it reject the new config split (because otherwise it would
read incorrectly).

A lot more explanation is in patch 04/06. The series is also
available at https://github.com/pclouds/git/tree/worktree-config

Nguyễn Thái Ngọc Duy (6):
  worktree: new repo extension to manage worktree behaviors
  path.c: new (identical) list for worktree v1
  worktree: share .git/common in v1
  worktree: new config file hierarchy
  config: select .git/common/config with --repo
  worktree add: switch to worktree version 1

 Documentation/config.txt                       |   5 +-
 Documentation/git-config.txt                   |  14 +++-
 Documentation/git-worktree.txt                 |  31 +++++++-
 Documentation/gitrepository-layout.txt         |  12 +++
 Documentation/technical/repository-version.txt |   6 ++
 builtin/config.c                               |  19 +++--
 builtin/worktree.c                             |  95 ++++++++++++++++++++++
 cache.h                                        |   5 +-
 config.c                                       |  14 +++-
 environment.c                                  |   1 +
 path.c                                         |  40 +++++++++-
 setup.c                                        |  40 ++++++++--
 t/t2028-worktree-config.sh (new +x)            | 104 +++++++++++++++++++++++++
 13 files changed, 364 insertions(+), 22 deletions(-)
 create mode 100755 t/t2028-worktree-config.sh

-- 
2.7.0.288.g1d8ad15

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