[PATCH v2 00/12] Pulling signed/annotated tags

This is a re-roll of the fourth iteration.

  Split GPG interface into its own helper library
  fetch: do not store peeled tag object names in FETCH_HEAD
  merge: notice local merging of tags and keep it unwrapped
  fetch: allow "git fetch $there v1.0" to fetch a tag
  refs DWIMmery: use the same rule for both "git fetch" and others
  fmt-merge-msg: avoid early returns
  fmt-merge-msg: package options into a structure

The above are unchanged from v1, except for the test patch that is gone. It has been merged into the patch that changes the behaviour to require the adjustment to the test.

  fmt-merge-msg: Add contents of merged tag in the merge message

This is updated to not show the ugly tag contents with "tag:" prefix in the merge log editor. Instead, the body of the tag (excluding the signature if it is a signed tag) is given without any prefix to help the integrator write a better log message. This happens even when merging an annotated (not signed) tag.

  merge: make usage of commit->util more extensible
  merge: record tag objects without peeling in MERGE_HEAD
  commit: copy merged signed tags to headers of merge commit

These three are new and are necessary to copy "cat-file tag" of a signed tag to the header of resulting merge commit.

  merge: force edit mode when merging a tag object

The implementation of this one has changed, but the spirit hasn't.

 Makefile                                           |    2 +
 builtin.h                                          |    8 +-
 builtin/commit.c                                   |   10 +-
 builtin/fetch.c                                    |    3 +-
 builtin/fmt-merge-msg.c                            |  113 +++++++++++++----
 builtin/merge.c                                    |   93 +++++++-------
 builtin/tag.c                                      |   76 +----------
 builtin/verify-tag.c                               |   35 +-----
 cache.h                                            |    2 +-
 commit.c                                           |   65 +++++++++-
 commit.h                                           |   13 ++
 gpg-interface.c                                    |  138 ++++++++++++++++++++
 gpg-interface.h                                    |   10 ++
 merge-recursive.c                                  |   13 +-
 refs.c                                             |    7 -
 strbuf.c                                           |   15 ++
 strbuf.h                                           |    8 +
 t/t4202-log.sh                                     |    4 +-
 t/t5510-fetch.sh                                   |    5 +-
 t/t5515/fetch.br-branches-default                  |    6 +-
 t/t5515/fetch.br-branches-default-merge            |    6 +-
 ...etch.br-branches-default-merge_branches-default |    6 +-
 t/t5515/fetch.br-branches-default-octopus          |    6 +-
 ...ch.br-branches-default-octopus_branches-default |    6 +-
 t/t5515/fetch.br-branches-default_branches-default |    6 +-
 t/t5515/fetch.br-branches-one                      |    6 +-
 t/t5515/fetch.br-branches-one-merge                |    6 +-
 t/t5515/fetch.br-branches-one-merge_branches-one   |    6 +-
 t/t5515/fetch.br-branches-one-octopus              |    6 +-
 t/t5515/fetch.br-branches-one-octopus_branches-one |    6 +-
 t/t5515/fetch.br-branches-one_branches-one         |    6 +-
 t/t5515/fetch.br-config-explicit                   |    6 +-
 t/t5515/fetch.br-config-explicit-merge             |    6 +-
 .../fetch.br-config-explicit-merge_config-explicit |    6 +-
 t/t5515/fetch.br-config-explicit-octopus           |    6 +-
 ...etch.br-config-explicit-octopus_config-explicit |    6 +-
 t/t5515/fetch.br-config-explicit_config-explicit   |    6 +-
 t/t5515/fetch.br-config-glob                       |    6 +-
 t/t5515/fetch.br-config-glob-merge                 |    6 +-
 t/t5515/fetch.br-config-glob-merge_config-glob     |    6 +-
 t/t5515/fetch.br-config-glob-octopus               |    6 +-
 t/t5515/fetch.br-config-glob-octopus_config-glob   |    6 +-
 t/t5515/fetch.br-config-glob_config-glob           |    6 +-
 t/t5515/fetch.br-remote-explicit                   |    6 +-
 t/t5515/fetch.br-remote-explicit-merge             |    6 +-
 .../fetch.br-remote-explicit-merge_remote-explicit |    6 +-
 t/t5515/fetch.br-remote-explicit-octopus           |    6 +-
 ...etch.br-remote-explicit-octopus_remote-explicit |    6 +-
 t/t5515/fetch.br-remote-explicit_remote-explicit   |    6 +-
 t/t5515/fetch.br-remote-glob                       |    6 +-
 t/t5515/fetch.br-remote-glob-merge                 |    6 +-
 t/t5515/fetch.br-remote-glob-merge_remote-glob     |    6 +-
 t/t5515/fetch.br-remote-glob-octopus               |    6 +-
 t/t5515/fetch.br-remote-glob-octopus_remote-glob   |    6 +-
 t/t5515/fetch.br-remote-glob_remote-glob           |    6 +-
 t/t5515/fetch.br-unconfig                          |    6 +-
 t/t5515/fetch.br-unconfig_--tags_.._.git           |    6 +-
 ...nfig_.._.git_one_tag_tag-one_tag_tag-three-file |    6 +-
 ...fig_.._.git_tag_tag-one-tree_tag_tag-three-file |    6 +-
 ...h.br-unconfig_.._.git_tag_tag-one_tag_tag-three |    6 +-
 t/t5515/fetch.br-unconfig_branches-default         |    6 +-
 t/t5515/fetch.br-unconfig_branches-one             |    6 +-
 t/t5515/fetch.br-unconfig_config-explicit          |    6 +-
 t/t5515/fetch.br-unconfig_config-glob              |    6 +-
 t/t5515/fetch.br-unconfig_remote-explicit          |    6 +-
 t/t5515/fetch.br-unconfig_remote-glob              |    6 +-
 t/t5515/fetch.master                               |    6 +-
 t/t5515/fetch.master_--tags_.._.git                |    6 +-
 ...ster_.._.git_one_tag_tag-one_tag_tag-three-file |    6 +-
 ...ter_.._.git_tag_tag-one-tree_tag_tag-three-file |    6 +-
 .../fetch.master_.._.git_tag_tag-one_tag_tag-three |    6 +-
 t/t5515/fetch.master_branches-default              |    6 +-
 t/t5515/fetch.master_branches-one                  |    6 +-
 t/t5515/fetch.master_config-explicit               |    6 +-
 t/t5515/fetch.master_config-glob                   |    6 +-
 t/t5515/fetch.master_remote-explicit               |    6 +-
 t/t5515/fetch.master_remote-glob                   |    6 +-
 t/t7600-merge.sh                                   |   12 +-
 t/t7604-merge-custom-message.sh                    |    2 +-
 t/t7608-merge-messages.sh                          |    4 +-
 tag.c                                              |    5 +
 81 files changed, 613 insertions(+), 378 deletions(-)
 create mode 100644 gpg-interface.c
 create mode 100644 gpg-interface.h