[PATCH v2 00/32] repository object

[Brandon Williams <bmwill@google.com>]

When I sent out my RFC series there seemed to be a lot of interest but I
haven't seen many people jump to review this series.  Despite lack of review I
wanted to get out another version which includes some changes to fix things
that were bugging me about the series.  Hopfully this v2 will prod some more
people to take a look.

The meat of the series is really from 04-15 and patch 32 which converts
ls-files to recurse using a repository object.  So if you're pressed for time
you can focus on those patches.

You can find this series at: https://github.com/bmwill/git/tree/repository-object

What's different in v2:
* 'struct repo' has been renamed 'struct repository'.  Really just an aesthetic
  change and it looks more "official" without having a shortened name.
* Better commit messages on a few of the patches which were soarly lacking.
* I found that 'git_config_iter' was being exported without an implementation
  so I added a patch to remove it.
* repo_init is a bit cleaner and is written in such a way to not call 'die()',
  instead it returns a non-zero return value upon failure.

Thanks for your help!

Brandon Williams (32):
  config: create config.h
  config: remove git_config_iter
  config: don't include config.h by default
  config: don't implicitly use gitdir
  setup: don't perform lazy initialization of repository state
  environment: remove namespace_len variable
  repository: introduce the repository object
  environment: place key repository state in the_repository
  environment: store worktree in the_repository
  setup: add comment indicating a hack
  config: read config from a repository object
  repository: add index_state to struct repo
  submodule-config: store the_submodule_cache in the_repository
  submodule: add repo_read_gitmodules
  submodule: convert is_submodule_initialized to work on a repository
  convert: convert get_cached_convert_stats_ascii to take an index
  convert: convert crlf_to_git to take an index
  convert: convert convert_to_git_filter_fd to take an index
  convert: convert convert_to_git to take an index
  convert: convert renormalize_buffer to take an index
  tree: convert read_tree to take an index parameter
  ls-files: convert overlay_tree_on_cache to take an index
  ls-files: convert write_eolinfo to take an index
  ls-files: convert show_killed_files to take an index
  ls-files: convert show_other_files to take an index
  ls-files: convert show_ru_info to take an index
  ls-files: convert ce_excluded to take an index
  ls-files: convert prune_cache to take an index
  ls-files: convert show_files to take an index
  ls-files: factor out debug info into a function
  ls-files: factor out tag calculation
  ls-files: use repository object

 Makefile                               |   1 +
 advice.c                               |   1 +
 alias.c                                |   1 +
 apply.c                                |   3 +-
 archive-tar.c                          |   1 +
 archive-zip.c                          |   1 +
 archive.c                              |   1 +
 attr.c                                 |   1 +
 bisect.c                               |   1 +
 branch.c                               |   1 +
 builtin/add.c                          |   1 +
 builtin/am.c                           |   1 +
 builtin/blame.c                        |   3 +-
 builtin/branch.c                       |   1 +
 builtin/cat-file.c                     |   1 +
 builtin/check-attr.c                   |   1 +
 builtin/check-ignore.c                 |   1 +
 builtin/check-mailmap.c                |   1 +
 builtin/checkout-index.c               |   1 +
 builtin/checkout.c                     |   1 +
 builtin/clean.c                        |   1 +
 builtin/clone.c                        |   1 +
 builtin/column.c                       |   1 +
 builtin/commit-tree.c                  |   1 +
 builtin/commit.c                       |   4 +-
 builtin/config.c                       |   3 +
 builtin/count-objects.c                |   1 +
 builtin/describe.c                     |   1 +
 builtin/diff-files.c                   |   1 +
 builtin/diff-index.c                   |   1 +
 builtin/diff-tree.c                    |   1 +
 builtin/diff.c                         |   1 +
 builtin/difftool.c                     |   1 +
 builtin/fast-export.c                  |   1 +
 builtin/fetch.c                        |   1 +
 builtin/fmt-merge-msg.c                |   1 +
 builtin/for-each-ref.c                 |   1 +
 builtin/fsck.c                         |   1 +
 builtin/gc.c                           |   1 +
 builtin/grep.c                         |   4 +-
 builtin/hash-object.c                  |   1 +
 builtin/help.c                         |   1 +
 builtin/index-pack.c                   |   1 +
 builtin/init-db.c                      |   1 +
 builtin/log.c                          |   1 +
 builtin/ls-files.c                     | 330 ++++++++++++++++-----------------
 builtin/ls-tree.c                      |   1 +
 builtin/merge-base.c                   |   1 +
 builtin/merge-file.c                   |   1 +
 builtin/merge.c                        |   1 +
 builtin/mv.c                           |   1 +
 builtin/name-rev.c                     |   1 +
 builtin/notes.c                        |   1 +
 builtin/pack-objects.c                 |   1 +
 builtin/patch-id.c                     |   1 +
 builtin/pull.c                         |   1 +
 builtin/push.c                         |   1 +
 builtin/read-tree.c                    |   1 +
 builtin/rebase--helper.c               |   1 +
 builtin/receive-pack.c                 |   1 +
 builtin/reflog.c                       |   1 +
 builtin/remote.c                       |   1 +
 builtin/repack.c                       |   1 +
 builtin/replace.c                      |   1 +
 builtin/rerere.c                       |   1 +
 builtin/reset.c                        |   1 +
 builtin/rev-list.c                     |   1 +
 builtin/rev-parse.c                    |   1 +
 builtin/revert.c                       |   1 +
 builtin/rm.c                           |   1 +
 builtin/send-pack.c                    |   1 +
 builtin/shortlog.c                     |   1 +
 builtin/show-branch.c                  |   1 +
 builtin/stripspace.c                   |   1 +
 builtin/submodule--helper.c            |  10 +-
 builtin/symbolic-ref.c                 |   1 +
 builtin/tag.c                          |   1 +
 builtin/unpack-file.c                  |   1 +
 builtin/unpack-objects.c               |   1 +
 builtin/update-index.c                 |   1 +
 builtin/update-ref.c                   |   1 +
 builtin/update-server-info.c           |   1 +
 builtin/var.c                          |   1 +
 builtin/verify-commit.c                |   1 +
 builtin/verify-pack.c                  |   1 +
 builtin/verify-tag.c                   |   1 +
 builtin/worktree.c                     |   1 +
 builtin/write-tree.c                   |   1 +
 cache.h                                | 196 +-------------------
 color.c                                |   1 +
 column.c                               |   1 +
 combine-diff.c                         |   2 +-
 config.c                               | 210 ++++++++++++++-------
 config.h                               | 217 ++++++++++++++++++++++
 connect.c                              |   1 +
 convert.c                              |  32 ++--
 convert.h                              |  19 +-
 credential-cache--daemon.c             |   1 +
 credential.c                           |   1 +
 daemon.c                               |   1 +
 diff.c                                 |   7 +-
 dir.c                                  |   3 +-
 environment.c                          | 101 ++++------
 fast-import.c                          |   1 +
 fetch-pack.c                           |   1 +
 git.c                                  |   3 +-
 gpg-interface.c                        |   1 +
 graph.c                                |   1 +
 grep.c                                 |   1 +
 help.c                                 |   1 +
 http-backend.c                         |   1 +
 http-fetch.c                           |   1 +
 http.c                                 |   1 +
 ident.c                                |   1 +
 imap-send.c                            |   1 +
 ll-merge.c                             |   3 +-
 log-tree.c                             |   1 +
 mailinfo.c                             |   1 +
 merge-recursive.c                      |   5 +-
 notes-utils.c                          |   1 +
 notes.c                                |   1 +
 pager.c                                |   1 +
 parse-options.c                        |   1 +
 path.c                                 |  11 +-
 pathspec.c                             |   1 +
 pretty.c                               |   1 +
 prompt.c                               |   1 +
 read-cache.c                           |   1 +
 refs.c                                 |   1 +
 refs/files-backend.c                   |   1 +
 remote-curl.c                          |   1 +
 remote.c                               |   1 +
 repository.c                           | 216 +++++++++++++++++++++
 repository.h                           |  45 +++++
 rerere.c                               |   1 +
 send-pack.c                            |   1 +
 sequencer.c                            |   1 +
 setup.c                                |  34 ++++
 sha1_file.c                            |   7 +-
 sha1_name.c                            |   1 +
 submodule-config.c                     |  71 +++++--
 submodule-config.h                     |  10 +
 submodule.c                            |  36 ++--
 submodule.h                            |   4 +-
 t/helper/test-config.c                 |   1 +
 t/helper/test-submodule-config.c       |   1 +
 t/t3007-ls-files-recurse-submodules.sh |  39 ++++
 trailer.c                              |   1 +
 transport.c                            |   1 +
 tree.c                                 |  28 ++-
 tree.h                                 |   3 +-
 unpack-trees.c                         |   1 +
 upload-pack.c                          |   1 +
 userdiff.c                             |   1 +
 versioncmp.c                           |   1 +
 wrapper.c                              |   1 +
 xdiff-interface.c                      |   1 +
 157 files changed, 1199 insertions(+), 586 deletions(-)
 create mode 100644 config.h
 create mode 100644 repository.c
 create mode 100644 repository.h

-- 
2.13.1.508.gb3defc5cc-goog