[PATCH v2 00/10] tag: only respect `pager.tag` in list-mode

This is the second version of "[PATCH 0/7] tag: more fine-grained pager-configuration" [1]. That series introduced `pager.tag.list` to address the fact that `pager.tag` can be useful with `git tag -l` but actively hostile with `git tag -a`. Thanks to Junio, Peff and Brandon for helpful feedback.

After that feedback, v2 drops `pager.tag.list` and instead teaches `git tag` to only consider `pager.tag` in list-mode, as suggested by Peff.

Patches 1-3/10 replace patch 1/7. They move Documentation/technical/ api-builtin.txt into builtin.h, tweak the formatting and bring it up to date. I may have gone overboard making this 3 patches...

Patches 4-7/10 correspond to patches 2-5/7. `setup_auto_pager()' is now much simpler since we do not need to handle "tag.list" with a clever fallback strategy. IGNORE_PAGER_CONFIG is now called DELAY_PAGER_CONFIG. I now check with pager_in_use() and I moved the handling of `pager.tag` a bit further down.

Patches 8-9/10 teach `git tag` to only respect `pager.tag` in list-mode and flip the default value for that config to "on".

Patch 10/10 is somewhat similar to a hunk in patch 2/7, but is now a bug-fix instead of a feature. It teaches `execv_dashed_external()` not to check `pager.foo` when launching `git-foo` where foo is a builtin. I waffled about where to put this patch. Putting it earlier in the series as a preparatory step, I couldn't come up with a way of writing a test. So patch 8/10 introduces a `test_expect_failure` which this patch then fixes.

Martin

[1] https://public-inbox.org/git/cover.1499723297.git.martin.agren@gmail.com/T/

Martin Ågren (10):
  builtin.h: take over documentation from api-builtin.txt
  builtin.h: format documentation-comment properly
  builtin.h: document SUPPORT_SUPER_PREFIX
  git.c: let builtins opt for handling `pager.foo` themselves
  git.c: provide setup_auto_pager()
  t7006: add tests for how git tag paginates
  tag: handle `pager.tag`-configuration within the builtin
  tag: respect `pager.tag` in list-mode only
  tag: change default of `pager.tag` to "on"
  git.c: ignore pager.* when launching builtin as dashed external

 Documentation/git-tag.txt               |  3 +
 Documentation/technical/api-builtin.txt | 73 -------------------------
 t/t7006-pager.sh                        | 85 +++++++++++++++++++++++++++++
 builtin.h                               | 97 +++++++++++++++++++++++++++++++++
 builtin/tag.c                           |  3 +
 git.c                                   | 18 +++++-
 6 files changed, 203 insertions(+), 76 deletions(-)
 delete mode 100644 Documentation/technical/api-builtin.txt