[PATCH v8 0/4] tag: configure default tag sort via .gitconfig

This patch series is hopefully the final version of a series of patches which updates git-tag to allow the .gitconfig variable 'tag.sort' to be used as the default sort parameter. This version uses a new set/pop error routine setup which enables correctly modifying the error routine to handle the config vs the command line.

In addition, I split the patch such that all the changes to the original parse_opt_sort are shown, and the following patch which extracts this function is just a function extraction with no changes, making it easier to review the new changes. One other minor bug fix is included as well.

Jacob Keller (4):
  usage: make error functions a stack
  tag: fix --sort tests to use cat<<-\EOF format
  tag: update parsing to be more precise regarding errors
  tag: support configuring --sort via .gitconfig

 Documentation/config.txt  |  5 +++
 Documentation/git-tag.txt |  5 ++-
 builtin/tag.c             | 97 ++++++++++++++++++++++++++++++++++++-----------
 git-compat-util.h         |  1 +
 t/t7004-tag.sh            | 76 +++++++++++++++++++++++++++----------
 usage.c                   | 29 ++++++++++++--
 6 files changed, 167 insertions(+), 46 deletions(-)